СПОСОБ СВАРКИ КОРОТКОЙ ДУГОЙ

Изобретение относится к способу сварки короткой дугой. Согласно способу периодически изменяемая электрическая дуга, периодически замыкаемая накоротко посредством расплавленной капли (22) со сварочной проволоки (20), формируется между сварочной проволокой (20) и основным материалом (21). Каждый сварочный цикл состоит из фазы (14) короткого замыкания и фазы (15) дуги. Фаза (12, 14) короткого замыкания и фаза (15) дуги содержат периоды сильноточного импульса (5, 10) и периоды (2, 7, 12, 16) малого тока. В конечной части каждой фазы (14) короткого замыкания (14) формируется период спадающего тока. В результате достигается точная регулировка сварки для различных материалов, высокое качество сварки за счет минимизирования разбрызгивания металла от падающей расплавленной капли. 5 з.п. ф-лы, 4 ил.

СИСТЕМА И СПОСОБ СВАРКИ С УПРАВЛЕНИЕМ ЭЛЕКТРИЧЕСКОЙ ДУГОЙ, ОСНОВАННЫМ НА ЦИФРОВОЙ СВЯЗИ

Изобретение относится к области сварочных систем. Система включает в себя сварочный источник питания и по меньшей мере один сварочный компонент, которые оснащены схемами цифровой связи для синхронизации и согласования заданий, связанных со сварочной операцией. Задания могут инициироваться и завершаться независимым образом или с согласованием на основании синхронизации. Некоторые из заданий могут выполняться компонентами сварочной системы в виде незамкнутого цикла или в виде замкнутого цикла на основании обратной связи параметров сварки. Кроме того, некоторые задания могут быть независимыми друг от друга или взаимозависимыми и при этом параллельно выполняться разными компонентами системы. Использование изобретения позволяет повысить гибкость в управлении сварочными операциями и уменьшить задержки при их осуществлении, что приводит к повышению качества сварочных работ. 3 н. и 16 з.п. ф-лы, 3 ил.

СПОСОБ ФОРМИРОВАНИЯ ВНЕШНЕЙ ХАРАКТЕРИСТИКИ ИСТОЧНИКА ПИТАНИЯ ДЛЯ ДУГОВОЙ ЭЛЕКТРОСВАРКИ ПЛАВЯЩИМСЯ ЭЛЕКТРОДОМ

Изобретение относится к сварке, в частности к способу формирования внешней характеристики источника питания для дуговой электросварки плавящимся электродом, и может найти применение при управлении процессами дуговой сварки. Формирование внешней характеристики источника питания осуществляют на экране монитора пульта управления в декартовой системе координат. Сначала в исходном состоянии на экран выводят кривую, ограничивающую максимальные значения тока и напряжения, по крайней мере, одну кривую средней мощности на нагрузке для статического режима сварки и формируют кривую, отражающую динамический режим сварки. Для этого измеряют мгновенные значения тока и напряжения на нагрузке и рассчитывают изменение сопротивления нагрузки, определяющее свойства источника питания в области медленных и быстрых процессов сварки. Получают требуемую внешнюю характеристику источника путем перемещения по экрану монитора соответствующих полученных кривой средней мощности на нагрузке и кривой, отражающей динамический ...

СПОСОБ УПРАВЛЕНИЯ ПРОЦЕССАМИ ЭЛЕКТРОДУГОВОЙ СВАРКИ И СВАРОЧНЫЙ АППАРАТ ДЛЯ ОСУЩЕСТВЛЕНИЯ ЭТОГО СПОСОБА

Изобретение относится к электродуговой сварке, в частности к способу управления процессами дуговой сварки с использованием контрольного параметра и к сварочному аппарату, имеющему регулятор для получения и использования этого параметра. Для получения в реальном масштабе времени управляющего сигнала для использования в электродуговом сварочном процессе, характеризующемся напряжением при сварке и сварочным током, первоначально измеряют напряжение при сварке и ток дуги. Осуществляют мгновенное изменение напряжения при сварке или тока дуги менее чем на 10%. Вторично измеряют напряжение при сварке и сварочный ток после этого изменения, определяют разность между первоначально и вторично измеренными напряжениями при сварке, определяют разность между первоначально и вторично измеренными сварочными токами. Вводят значения производной, представляющей требуемый управляющий сигнал, путем деления разности между первоначально и вторично измеренными напряжениями при сварке на разность между первоначально ...

Способ дуговой сварки штучным покрытым электродом

Изобретение относится к способу дуговой сварки штучным покрытым электродом. Закрепляют электрод в электрододержателе, установленном с возможностью перемещения в направлении к изделию под действием силы тяжести. Сближают электрод с изделием в процессе горения дуги в соответствии со скоростью расплавления электрода и перемещение сварочной ванны на изделии вдоль линии сварки с регулированием поперечного сечения наплавляемого валика по длине. Перед сваркой для заданного диаметра стержня и тока сварки устанавливают изменение длины расплавленной части электрода в зависимости от времени горения дуги, по которой определяют изменение скорости расплавления электрода. В процессе сварки электрод и изделие сближают с изменением скорости в зависимости от скорости расплавления электрода, при этом электрод или изделие перемещают вдоль линии сварки с изменением скорости, которое устанавливают исходя из полученной скорости расплавления электрода и требуемой площади поперечного сечения наплавляемого валика ...

СПОСОБ СВАРКИ КОМБИНАЦИЕЙ СЖАТОЙ И СВОБОДНОЙ ДУГ

Изобретение может быть использовано для сварки металлов комбинацией сжатой и свободной дуг. Сжатая дуга прямого действия прямой полярности зажигается с помощью дежурной дуги между вольфрамовым электродом и соплом от высокочастотного возбудителя дуги. Затем дежурная дуга зажигается при случайном обрыве рабочей дуги. На торце сопла плазмотрона закрепляют тугоплавкую вставку из неплавящегося электрода. Между этой вставкой и изделием зажигают свободную дугу, питаемую от источника разнополярных импульсов тока частотой не менее 50 Гц. Отношение среднего за период тока импульсов прямой полярности в свободной дуге к полному среднему току этой дуги выбирают в пределах 0,5-0,9. Близкое расположение сжатой и свободной дуг обеспечивает эффект тандемной сварки, приводящий к повышению проплавляющей способности по сравнению с однодуговой сваркой. При сварке алюминиевых сплавов свободная дуга располагается впереди по отношению к направлению сварки и очищает поверхность от окисной пленки алюминия. При сварке ...

СПОСОБ УМЕНЬШЕНИЯ СВАРОЧНОГО КОРОБЛЕНИЯ ПРИ ОДНОСТОРОННЕЙ СВАРКЕ ДЛЯ СОЕДИНЕНИЯ ТОЛСТЫХ ЛИСТОВ

Изобретение относится к сварке, в частности к способам уменьшения сварочного коробления при односторонней сварке, и может найти применение при изготовлении крупногабаритных толстостенных конструкций. Сущность изобретения состоит в том, что сварку выполняют несколькими электродами, расположенными на расстоянии друг от друга в направлении сварки. При этом режим сварки назначают в зависимости от рассчитываемого параметра P, который зависит от силы тока, напряжения, скорости сварки, числа электродов и других и не должен превышать 0,14. В случае сварки с применением выводных пластин дополнительно рассчитывают еще один параметр Ptab, который зависит от толщины пластин, сварочного тока, напряжения и других, и не должен превышать 0,26. 4 с. и 3 з. п. ф-лы, 7 ил., 4 табл.

СПОСОБ ПОСТРОЕНИЯ ВНЕШНЕЙ ХАРАКТЕРИСТИКИ ИСТОЧНИКА ПИТАНИЯ ДЛЯ ЭЛЕКТРОСВАРКИ

Способ построения внешней характеристики источника питания для электросварки, заключающийся в управлении формой кривой указанной характеристики за счет изменения на пульте управления значений напряжения и тока нагрузки с последующим получением требуемого режима сварки автоматическим регулированием выходных напряжения и тока источника питания, отличающийся тем, что указанное управление осуществляют с помощью монитора пульта управления, на экране которого в декартовой системе координат с ограничениями минимальных и максимальных значений напряжения и тока нагрузки строят внешнюю характеристику из трех составляющих, соответствующих средней мощности на нагрузке, снижению и повышению сопротивления нагрузки, определяющих свойства источника питания в области медленных и быстрых процессов сварки и перемещаемых по экрану монитора для получения требуемой формы этой характеристики.

СПОСОБ ФОРМИРОВАНИЯ ВНЕШНЕЙ ХАРАКТЕРИСТИКИ ИСТОЧНИКА ПИТАНИЯ ДЛЯ ЭЛЕКТРОСВАРКИ

Способ формирования внешней характеристики источника питания для электросварки, заключающийся в управлении формой кривой и величиной напряжения и тока нагрузки, преимущественно в виде дуги, с циклическим повторением процессов образования и переноса капель расплавленного металла, протекающих в соответствии с формой внешней характеристики источника питания, отличающийся тем, что в каждом цикле повторяющихся процессов измеряют и вычисляют мгновенные значения напряжения, тока, мощности и сопротивления нагрузки, причем при выявленном снижении сопротивления нагрузки формируют падающую ветвь внешней характеристики, изменяя напряжение и ток для управления мгновенной мощностью на нагрузке и обеспечивая в каждом цикле образование капли, а при выявленном повышении сопротивления нагрузки формируют восходящую ветвь внешней характеристики, изменяя напряжение и ток для управления мгновенной мощностью на нагрузке и обеспечивая в каждом цикле перенос капли, причем из вычисленных значений мгновенной мощности ...

СПОСОБ УПРАВЛЕНИЯ ЭЛЕКТРОДУГОВОЙ СВАРКОЙ

Изобретение относится к области электродуговой сварки. Способ включает формирование сварного соединения с использованием источника питания с по меньшей мере двумя вольт-амперными характеристиками (ВАХ). При этом формирование сварного соединения осуществляют с разбиванием на этапы, для каждого из которых задают определенную ВАХ источника питания в виде кривой Безье не более третьего порядка, две концевые опорные точки которой соответствуют току короткого замыкания и напряжению холостого хода, а переключение источника питания с одной ВАХ на другую при смене этапа осуществляют с учетом значения сварочных параметров, в качестве которых могут быть использованы ток или напряжение сварочной дуги, производные по времени тока или напряжения сварочной дуги, временные интервалы работы источника питания с заданной ВАХ. Использование изобретения позволяет повысить качество сварки. 3 з.п. ф-лы, 9 ил.

АВТОМАТИЗИРОВАННЫЙ КОНТРОЛЬ ТЕМПЕРАТУР ПРИ СВАРКЕ

Изобретение относится к сварочному производству и может быть использовано в устройствах контроля основных параметров сварки в качестве средства автоматизированного контроля температур. Техническим результатом является расширение информативных возможностей системы автоматизированного контроля температуры и состояния металла непосредственно в области нахождения сварочной головки во время процесса сварки и повышение качества сварного шва. Автоматизированный контроль температур при сварке реализуется путем использования двух датчиков температуры, сварочной головки с блоком управления ее режимами, измерительного блока, связанного с датчиками температуры и блоком управления. В качестве датчиков температуры применены ультразвуковые преобразователи, расположенные по обеим сторонам торцов свариваемых металлических листов и механически соединенные кронштейном между собой и со сварочной головкой с возможностью перемещения вдоль торцов свариваемых металлических листов. Причем главные акустические оси ...

Способ дуговой двухэлектродной механизированной сварки

Изобретение может использоваться при аргонодуговой сварке в инертных газах алюминиевых сплавов, высоколегированных сталей, титановых сплавов. Используют один неплавящийся электрод и один плавящийся, который подают механизировано в сварочную ванну. Дуга с электродов горит поочередно вследствие отключения дуги на втором электроде, причем сварочную дугу обрывают принудительно путем выключения тока в сварочной цепи электродов. Источник питания переменного тока обеспечивает формирование разнополярных импульсов тока прямоугольной формы. Положительный полюс источника питания периодически подключается к неплавящемуся электроду, а отрицательный полюс - к плавящемуся. Это обеспечивает достаточно высокую стойкость неплавящегося электрода и высокую скорость расплавления плавящегося электрода, в 1,6-2,0 раза превышающую скорость на обратной полярности. Стабильность скорости расплавления электродной проволоки на прямой полярности достигается за счет постоянных гашений и зажиганий дуги с высокой частотой ...

СПОСОБ УМЕНЬШЕНИЯ СВАРОЧНОГО КОРОБЛЕНИЯ ПРИ ОДНОСТОРОННЕЙ СВАРКЕ ТОЛСТОГО ЛИСТА

Предлагаемое изобретение относится к способу уменьшения степени сварочной деформации в случае, при котором предназначенные для сваривания стальные листы состыковывают и соединяют прихваточным швом, после чего участок с прихваточным швом подвергают односторонней сварке для соединения листов. В предлагаемом изобретении применяется не менее трех сварочных электродов, а условия сварки определяются таким образом, чтобы параметр P, показанный в формуле, приведенной в описании, мог быть заранее установленной величиной. В случае, если прихваточную сварку выполняют с использованием пластины, параметр P не должен превышать заранее установленного значения, а высота H валика прихваточного шва пластины не превышает половины толщины стальных листов, предназначенных для сваривания, а условия сварки при односторонней сварке для соединения листов определяется таким образом, чтобы параметр P, полученный на основании этих значений, не должен быть меньше заданного значения.

УСТРОЙСТВО И СПОСОБ МОДЕЛИРОВАНИЯ ПРОЦЕССА СВАРКИ

... 1. Устройство (1) для моделирования пользователем процесса сварки, содержащее компьютер (2) с устройством (11) ввода и устройством (6) вывода, сварочную горелку (3), магнитное устройство (5) контроля положения, по меньшей мере, с одним датчиком (13) и с множеством сенсорных элементов (14), держатель (15) предназначенный для осуществления моделирования заготовки (4), и устройство (16) визуализации для формирования двух- или трехмерного изображения (29) на устройстве (6) вывода, причем, по меньшей мере, один сенсорный элемент (14) устройства (5) контроля положения установлен в сварочной горелке (3), отличающееся тем, что держатель (15) выполнен в виде портативного переносного бокса (19) для установки на стол (10) и имеет углубление (18), предназначенное для введения в него различных заготовок (4), причем, по меньшей мере, один датчик (13) устройства (5) контроля положения расположен на боксе (19) ниже углубления (18) для заготовки (4) на минимальном расстоянии от заготовки (4), при этом, ...

Вспомогательное устройство для сварки, содержащее сварочную маску с датчиком скорости сварки

УСТРОЙСТВО ЗАДАНИЯ ПОСЛЕДОВАТЕЛЬНОСТИ СВАРОЧНЫХ РАБОТ

... 1. Способ сварки в полуавтоматическом гибком производственном модуле, отличающийся автоматическим выбором режима сварки для использования оператором в полуавтоматическом сварочном гибком производственном модуле. ! 2. Способ сварки в полуавтоматическом гибком производственном модуле по п.1, отличающийся тем, что автоматический выбор выполняется по истечении промежутка времени. ! 3. Способ сварки в полуавтоматическом гибком производственном модуле по п.1 или 2, отличающийся обнаружением, когда оператор проводит операцию, причем автоматический выбор выполняется на основе этого обнаружения. ! 4. Способ сварки в полуавтоматическом гибком производственном модуле по п.1 или 2, отличающийся обнаружением, когда оператор проводит операцию сварки, причем автоматический выбор выполняется в соответствии с количеством сварочной проволоки или энергии, подаваемой для операции сварки. ! 5. Способ сварки в полуавтоматическом гибком производственном модуле по п.1 или 2, отличающийся тем, что режим сварки ...

СИСТЕМА И СПОСОБ СВАРКИ С ДАТЧИКОМ ДЛЯ ОПРЕДЕЛЕНИЯ ПАРАМЕТРА, УКАЗЫВАЮЩЕГО ДИАМЕТР ИСПОЛЬЗУЕМОЙ СВАРКИ

... 1. Система сварки, содержащая:сварочную горелку;сварочный аппарат, соединенный со сварочной горелкой, выполненный с возможностью производить сварочную дугу в сварочной горелке; идатчик, выполненный с возможностью определять параметр, указывающий размер сварочного материала, используемого сварочной горелкой, в которой датчик выполнен с возможностью отправлять сигнал сварочному аппарату, причем сигнал представляет параметр, указывающий размер сварочного материала, при этом сварочный аппарат выполнен с возможностью автоматически применять по меньшей мере один из параметра зажигания дуги или параметра сварки на основании упомянутого сигнала.2. Система сварки по п. 1, в которой датчик определяет параметр, указывающий размер сварочного материала, непосредственно путем измерения размера сварочного материала.3. Система сварки по п. 1, в которой датчик определяет параметр, указывающий размер сварочного материала, путем определения конфигурации сварки, используемой сварочной горелкой, при этом конфигурация ...

BERÜHRUNGSABTASTSENSOR

Bereitgestellt wird ein Berührungsabtastsystem, welches die Lebensdauer eines Kontakts eines elektromagnetischen Schützes verlängern kann. Ein Berührungsabtastsystem A beinhaltet eine Hauptbetriebsschaltung 103, die eine Sonde 101 und eine Hauptbetriebs-Stromversorgung 102 verbindet, und in der ein elektromagnetisches Schütz 104 vorgesehen ist; und eine Berührungsabtastschaltung 2, die mit der Hauptbetriebsschaltung 103 durch das elektromagnetische Schütz 104 in einer verzweigten Weise verbunden ist, und die Sonde 101 und eine Berührabtast-Stromversorgung 1 verbindet, wobei ein Solid-State-Relaisschalter 3 in der Berührungsabtastschaltung 2 vorgesehen ist.

Verfahren und System zur Verwendung von sich bewegendem aufzehrbarem Draht mit Schweisspfütze

Es werden ein System (100) und ein Verfahren zum Steuern von Fülldraht (140) bereitgestellt. Das System (100) enthält eine hoch-intensive Energiequelle (130), die dafür konfiguriert ist, mindestens ein Werkstück (115) zu erwärmen, um eine Schmelzpfütze (145) auf einer Oberfläche des mindestens einen Werkstücks (115) zu erzeugen. Eine Fülldrahtzuführvorrichtung (150) ist dafür konfiguriert, einen Fülldraht (140) in die Schmelzpfütze (145) zuzuführen, und eine Vorschubrichtungssteuereinheit ist dafür konfiguriert, die hoch-intensive Energiequelle (130) und den Fülldraht (140) in einer Vorschubrichtung voranzuschieben, um den Fülldraht (140) auf dem mindestens einen Werkstück (115) abzuscheiden. Das System (100) enthält außerdem einen Fülldraht (140)-Steuereinheit (195), die dafür konfiguriert ist, den Fülldraht (140) während des Zuführens und Voranschiebens des Fülldrahtes (140) in mindestens einer ersten Richtung zu bewegen. Mindestens die erste Richtung wird so gesteuert, um eine gewünschte ...

Verfahren zum Erkennen von Schweißfehlern

Die Erfindung betrifft ein Verfahren zum Erkennen von Schweißfehlern (F1 bis Fn).Erfindungsgemäß werden- Fehlerursachen fehlerhafter Schweißprozesse ermittelt,- die fehlerhaften Schweißprozesse reproduziert und dabei Prozessgrößen aufgezeichnet,- Modelle (M1 bis Mn) aus dem Bereich künstlicher Intelligenz zur Erkennung verschiedener Fehlerursachen trainiert, und- die trainierten Modelle (M1 bis Mn) innerhalb einer graphischen Benutzeroberfläche während einer Durchführung von Schweißprozessen zum Erkennen von Schweißfehlern (F1 bis Fn) verwendet.

Techniques for joining lined pipes

AÂ connector for lined pipelines comprising a tube 38 having opposed male interface elements extending inwardly from respective ends of the tube. One or more circumferential permeable chokes 50 project radially from each male interface element. The chokes 50 minimise flow of oxidising fluid from the bore into the micro-annulus 62 between the liner 24 and the pipe while maximising flow of fluid from the micro-annulus 62 into the bore in the event of catastrophic pressure drop in the bore. To maintain gaps between the tube ends and the pipe liners 24 for fluid flow, shoulder formations defined by radially-projecting bands extend circumferentially around the tube 38. The connector may be used in a joint arrangement where each liner 24 comprises a body section, an end section of lesser thickness and greater bore than the body section that terminates short of an end of the pipe, an inner step disposed between the body section and the end section, and an outer step disposed between the end section ...

IMPROVEMENTS IN OR RELATING TO ELECTRIC WELDING

Metal inert gas/or carbon dioxide arc welding apparatus

A fire extingushing system for an electric welding apparatus is disclosed having a source of inert gas which can be activated by switches (27, 28) in a torch (20) which provides a two-step flow of gas through magnetic valves (40, 44). In the preferred embodiment, a low level flow of 3 to 5 liters is provided by activating one of the switches and a fire extinguishing and cleaning flow of 10 to 40 kiloliters is provided by activating the remaining switch. The operator of the system can extinguish a newly started fire and clean the welding tip without need to put the apparatus down and obtain other equipment for these purposes.

A method of welding two components by determining an optimised weld torch velocity and voltage

Arc welding

Improvements in and relating to welding helmets

A welding system 1 for a user welding components, comprising a welding helmet 12. The helmet comprises at least one operational parameter monitor 14, operably linked to an indicator 4. The indicator provides an output stimulus to the user related to an operational parameter. Preferably the operational parameter monitor monitors the environment (temperature, presence of noxious gases etc) proximate to the user or the components to be welded or is a thermocouple or non-contact thermometer (IR laser) 6 to measure the operational parameter of the temperature of the component to be welded. The indicator is preferably a visual, audible or vibratory indicator. Preferably the users welding torch is automatically deactivated if the operational parameter is outside minimum or maximum threshold levels.

SCHWEISSGERÄT BZW. SCHWEISSANLAGE

DEVICE FOR THE EXECUTION OF AN ADDING, A SEPARATION OR A SURFACE TREATMENT PROCEDURE, IN PARTICULAR A WELDING METHOD

WELDING SET WITH A ROBOT AND CONTROL EQUIPMENT

Voltage switch-over device for selecting voltages e.g. for welding equipment, has a power rectifier, a step-up transformer, a controller and power connection lines connecting up the power rectifier

A voltage switch-over device (23) has a power rectifier (26), a step-up transformer (34,35) with storage elements (50,51), a transformer (40), a switching device (59), a controller (4) and power connection lines (27-29) connecting the power rectifier to a power source (24). A consumer (25) is connected to the transformer's secondary winding (42). Connected to the switching device or controller, a network evaluation device (32) assesses the power source voltage.

PROCEDURE AND DEVICE FOR THE REGULATION OF VARIABLES FOR AN ELECTRICAL WELD CIRCUIT

WELDING SYSTEM AND PROCEDURE FOR THE ESTABLISHMENT OF THE WELDING PARAMETERS FOR A WELDING POWER SOURCE

PROCEDURE FOR THE SHORT TIME ARC WELDING AS WELL AS SHORT TIME ARC WELDING SYSTEM, AROUND HIGH FREQUENCY DISTURBANCES FOR RECOGNIZING

SPANNUNGSUMSCHALTVORRICHTUNG

VORRICHTUNG ZUR SIMULATION EINES SCHWEISSPROZESSES

The invention relates to a device (1) and a method for simulating a welding process. The device comprises a computer (2) having an input device (11) and an output device (6), a welding torch (3), a magnetic position monitoring device (5) having at least one transmitter (13) and a plurality of sensors (14), a retaining device (15) for a workpiece (4) used for the simulation and a visualization device (16) for generating a two- or three-dimensional image (29) on the output device (6). The retaining device (15) has a recess (18) into which the workpiece (4) can be inserted, at least one transmitter (13) of the position monitoring device (5) being arranged below the recess (18) at as small a distance from the workpiece (4) as possible, and the retaining device (15) being designed as a small, portable box (19) to be placed on a table (10).

VERFAHREN ZUR STEUERUNG DER SIMULATION EINES SCHWEISSPROZESSES

The invention relates to a device (1) and a method for simulating a welding process. The device comprises a computer (2) having an input device (11) and an output device (6), a welding torch (3), a magnetic position monitoring device (5) having at least one transmitter (13) and a plurality of sensors (14), a retaining device (15) for a workpiece (4) used for the simulation and a visualization device (16) for generating a two- or three-dimensional image (29) on the output device (6). The retaining device (15) has a recess (18) into which the workpiece (4) can be inserted, at least one transmitter (13) of the position monitoring device (5) being arranged below the recess (18) at as small a distance from the workpiece (4) as possible, and the retaining device (15) being designed as a small, portable box (19) to be placed on a table (10).

VERFAHREN UND VORRICHTUNG ZUR STEUERUNG DER SIMULATION EINES SCHWEISSPROZESSES

The invention relates to a device (1) and a method for simulating a welding process. The device comprises a computer (2) having an input device (11) and an output device (6), a welding torch (3), a magnetic position monitoring device having at least one transmitter and a plurality of sensors, a retaining device (15) for a workpiece (4) used for the simulation and a visualization device (16) for generating a two- or three-dimensional image on the output device (6). The retaining device (15) has a recess into which the workpiece (4) can be inserted, at least one transmitter of the position monitoring device being arranged below the recess at as small a distance from the workpiece as possible, and the retaining device (15) being designed as a small, portable box to be placed on a table (10).

VERFAHREN UND VORRICHTUNG ZUR STEUERUNG DER SIMULATION EINES SCHWEISSPROZESSES

The invention relates to a device (1) and a method for simulating a welding process. The device comprises a computer (2) having an input device (11) and an output device (6), a welding torch (3), a magnetic position monitoring device (5) having at least one transmitter (13) and a plurality of sensors (14), a retaining device (15) for a workpiece (4) used for the simulation and a visualization device (16) for generating a two- or three-dimensional image (29) on the output device (6). The retaining device (15) has a recess (18) into which the workpiece (4) can be inserted, at least one transmitter (13) of the position monitoring device (5) being arranged below the recess (18) at as small a distance from the workpiece (4) as possible, and the retaining device (15) being designed as a small, portable box (19) to be placed on a table (10).

VERFAHREN UND VORRICHTUNG ZUR STEUERUNG DER SIMULATION EINES SCHWEISSPROZESSES

The invention relates to a device (1) and a method for simulating a welding process. The device comprises a computer (2) having an input device (11) and an output device (6), a welding torch (3), a magnetic position monitoring device having at least one transmitter and a plurality of sensors, a retaining device (15) for a workpiece (4) used for the simulation and a visualization device (16) for generating a two- or three-dimensional image on the output device (6). The retaining device (15) has a recess into which the workpiece (4) can be inserted, at least one transmitter of the position monitoring device being arranged below the recess at as small a distance from the workpiece as possible, and the retaining device (15) being designed as a small, portable box to be placed on a table (10).

Verfahren und Vorrichtung zum Verschweißen zumindest zweier Metallbänder

Die Erfindung betrifft ein Verfahren zum Verschweißen zumindest zweier Metallbänder (1, 2), bei dem die Schweißnaht (4) abschnittsweise hergestellt wird. Dabei wird der Schweißstrom (I) beim Einschalten während der ersten Vorschubbewegung (A) bis zu einem ersten vorgegebenen Wert (I1) wenigstens abschnittsweise sukzessive erhöht und/oder bei Ausschalten während der ersten Vorschubbewegung (A) auf einen zweiten vorgegebenen Wert (I2) wenigstens abschnittsweise sukzessive gesenkt. Weiterhin betrifft die Erfindung ein Metallband (1, 2), das mit einem Verfahren der genannten Art hergestellt ist. Schließlich betrifft die Erfindung eine Vorrichtung (5) zur Durchführung des genannten Verfahrens.

WELDING SET AND/OR SEALING MACHINE

REPAIR OF A TURBINE BLADE

METHOD FOR THE CONTROLLING OF A WELDING METHOD AND CONTROL

Integrating sensors over a digital link

Remote wire feeder

Welding job sequencer

A semi-automatic welding work cell, including a welding job sequencer that automatically selects a welding schedule for use by an operator in the semi-automatic welding work cell. The automatic selection may be by way of elapsed time, a detection of welding operations, a detection of the amount of welding wire supplied for the welding operation, or a detection of the amount of energy supplied for the welding operation.

Method and apparatus of controlling an electric arc welding operation by adjusting a plurality of welding parameters through the monitoring of the concentration of plurality of fume components

Method and apparatus for short - arc welding

Apparatus, system and method to facilitate reconfigurable welding power supply

Welding resource performance goal system and method

Metal fabrication systems and related equipment may be monitored by collecting and transmitting parameter data relating to welding operations to a memory and processing system. Goals for selected parameters may be pre-defined, and certain of these may be standard for corresponding welding systems, locations, operations, operators, and so forth. Upon request a web based report is generated and delivered to a user that indicates the system or systems, comparisons of the actual system performance versus the goals, time periods for the comparisons, and so forth.

Methods of and system for welding using a generator stick eletrode based engine speed control

A welding system (10) includes an engine (16) driven welder generator (18) that produces welding power. A welding torch (28) receives the welding power and applies it to a stick electrode (30) to initiate and maintain a welding arc. A parameter of the welding power, such as voltage, is monitored, such as to determine whether spikes occur during a short time after arc initiation. Based upon the monitored parameter, the engine (16) speed is controlled. The engine (16) speed may be increased or maintained at an elevated level if the monitored parameter indicates that particular types of stick electrode (30) are being used, such as XX10 or cellulose electrodes (30).

Non-consumable electrode welding system and welding method thereof

A non-consumable electrode welding system and a welding method thereof are disclosed. The non-consumable electrode welding method of the present invention comprises a step of applying (+) or (-) polarity to a welding wire as a basic material and a filter metal and applying, to a non-consumable electrode rod, the polarity opposite to the polarity of the welding wire.

METHOD AND APPARATUS FOR WELDING

A method and apparatus for welding include initiating a pulse welding process includes initiating a welding arc by providing CC type welding power, maintaining the arc by providing CV type power. Then, pulse type welding power is provided. The method and system can be used to start short circuit, or other welding processes by providing short circuit power, or welding power of a given mode, instead of providing pulse power. Also, in one alternative, a method and system of initiating a pulse, short circuit, or given welding process includes initiating a welding arc by providing CC type welding power at least until a pseudo-equilibrium for the arc is established. Then, providing welding power in a pulse, short circuit, or the given mode.

REMOTE WIRE FEEDER

A wire feeder including a motor driving a set of feed rolls to force a welding wire from a spool through a welding torch to a welding operation. The wire feeder has an input lead to be comiected to the output lead of one of a plurality of remotely located power sources, each having a signal receiver for receiving transmitted signal with a code unique to one of the power sources. The receiver having an output for controlling a parameter or condition of the one power source in accordance with a received signal with the unique code. A transmitter on each of said plurality of power sources for transmitting on its output lead a coded signal specific to the power source. A signal receiver on said wire feeder to receive a unique code from the specific power source actually connected to the wire feeder and a circuit on the wire feeder for transmitting command signals fi-om. the wire feeder, which command signals each have the unique code specific to the power source comiected to said wire feeder ...

METHOD OF CONTROLLING ARC WELDING

A method of controlling arc welding continuously gradually changes the operation speed of welding. By doing so, a rapid change in wire feeding speed occurring in association with a rapid change in the speed of welding operation can be eased to enable stable welding control.

SYSTEMS AND METHODS FOR STATISTICALLY ANALYZING WELDING OPERATIONS

A welding system including a welding power source including power conversion circuitry adapted to receive primary power and to convert the primary power to a weld power output for use in a welding operation and a controller communicatively coupled to the welding power source are provided. The controller is adapted to determine a statistical signature of at least one parameter of a welding process and to utilize the statistical signature to determine at least one of an electrode type, an electrode diameter, and a shielding gas type during the welding operation.

REMOTE WIRE FEEDER

A wire feeder including a motor driving a set of feed rolls to force a welding wire from a spool through a welding torch to a welding operation. The wire feeder has an input lead to be comiected to the output lead of one of a plurality of remotely located power sources, each having a signal receiver for receiving transmitted signal with a code unique to one of the power sources. The receiver having an output for controlling a parameter or condition of the one power source in accordance with a received signal with the unique code. A transmitter on each of said plurality of power sources for transmitting on its output lead a coded signal specific to the power source. A signal receiver on said wire feeder to receive a unique code from the specific power source actually connected to the wire feeder and a circuit on the wire feeder for transmitting command signals fi-om. the wire feeder, which command signals each have the unique code specific to the power source comiected to said wire feeder ...

SMART HUB FOR A WELDING ELECTRODE FEEDER

A welding electrode feeder includes an electrode package support and control circuitry. The electrode package support is configured to be coupled to a package of electrode. The electrode package support includes a hub motor disposed within the electrode package support, wherein the hub motor is configured to rotate the package coupled to the electrode package support, and a sensor configured to sense one or more parameters of the electrode. The control circuitry is communicatively coupled to the hub motor, the sensor, and a downstream motor, and is configured to control the hub motor or the downstream motor based at least in part upon the one or more parameters of the electrode.

WELD TRAINING SYSTEMS TO SYNCHRONIZE WELD DATA FOR PRESENTATION

Synchronized weld training systems are disclosed. Example systems include a display device; a processor to execute instructions to: collect, from welding-type equipment during a welding-type operation, data describing the operation; collect, from a set of one or more cameras, first images of an operator, the first images depicting a posture or technique of the operator; collect, from the set of cameras, second images of a welding torch; collect third images of a weld bead; synchronize the data, and the first, second, and third images; display the data and the first, second, and third images; and, after the operation and in response to an input specifying a portion of the welding-type operation, display corresponding synchronized portions of the data and the first, second, and third images to present a relationship between the posture, a position of the welding torch, and the data to the weld bead.

WELDING DEVICE

A welding control device (90) for a welding device (1) in which a welding robot (30) performs automatic welding using a welding wire is equipped with a sensing means (92), a root gap calculation means (93) for obtaining a root gap on the basis of information obtained by the sensing means (92), and a storage means (95) for storing wire-melting information. The layering pattern and welding conditions such as current, voltage, welding speed and the like are controlled according to the root gap and the wire-melting information.

SYSTEM AND METHOD FOR SHORT ARC WELDING

A method and apparatus for short circuit welding is disclosed. They reduce the current prior to the short clearing by adjusting waveform parameters in response to past cycles. One or more parameter of the output is monitored and compared to one or more targets, and future waveform parameters are adjusted so that the monitored parameters are more likely to reach the one or more targets.

SYSTEM AND METHOD FOR SELECTING WELD PARAMETERS

Systems and methods for selecting weld parameters are disclosed. An example machine readable storage medium includes machine readable instructions which, when executed, cause a processor to: present a user interface; identify, for a weld based on input received via the interface, user-defined weld information including at least one of a material to be welded, an expected result of the weld, an on-hand material, or weld equipment available to be used for the weld; transmit the user-defined weld information to a welding knowledge provider; present one or more welding plans via the interface based on a response from the welding knowledge provider, the one or more welding plans including at least one of a welding device configuration, welding supplies information, or welding operator instructions; and automatically configure a welding power supply using one of the welding plans based on a selection of the one of the welding plans via the interface.

SYSTEMS AND METHODS TO MONITOR THE LIFE OF A WELDING TORCH

An example wire feeder includes: a frame; a receptacle configured to transfer welding-type current to a welding torch via a torch connector, and to position the torch connector to receive a wire electrode; one or more drive rolls configured to drive the wire electrode to the welding torch, the one or more drive rolls being electrically insulated from the frame, and wherein the wire electrode is electrically insulated from the frame; and a sensor configured to determine at least one of a voltage or an impedance between a first point electrically coupled to the wire electrode and a reference point.

SYSTEMS AND METHODS FOR CONTROLLED ARC AND SHORT PHASE TIME ADJUSTMENT

WELDING JOB SEQUENCER

A semi-automatic welding work cell, including a welding job sequencer tha t automatically selects a welding schedule for use by an operator in the sem i-automatic welding work cell. The automatic selection may be by way of elap sed time, a detection of welding operations, a detection of the amount of we lding wire supplied for the welding operation, or a detection of the amount of energy supplied for the welding operation.

SYSTEMS AND METHODS FOR MEASURING VOLTAGE AND CURRENT IN A TORCH

A retrofit module includes at least one of a current sensing component that has a first circuit or a voltage sensing component that has a second circuit. The current sensing component and the voltage sensing component may be disposed in a torch head of a welding or plasma cutting torch. The current sensing component is configured to measure a welding or plasma cutting current of the torch head, and the voltage sensing component is configured to measure a welding or plasma cutting voltage of the torch head.

SYSTEM FOR CONTROLLING WELDING PARAMETER OF A WELDING SYSTEM

Embodiments of a the present disclosure include a remote control system for a welding system having a control device and control circuitry configured to select a first operating parameter adjustment for a first operating parameter of the welding system based on a first actuation of the control device, wherein the first operating parameter adjustment comprises an adjustment to a rate of change of the first operating parameter.

SYSTEM AND METHOD OF ACTIVE TORCH MARKER CONTROL

A welding system includes one or more cameras and a controller coupled to the one or more cameras. The one or more cameras are configured to detect a plurality of sets of visual markers of a welding device, where each each set is oriented in a respective marker direction. The controller is configured to determine one or more marker directions of one or more respective sets of visual markers based on a detected set of visual markers, to select one of the sets of visual markers as a tracked set of visual markers based at least in part on a determined marker direction of the tracked set of visual markers, to associate a rigid body model to the tracked set of visual markers, and to determine a position and an orientation of the welding device based on the associated rigid body model of the tracked set of visual markers.

ELECTRICAL OR ELECTRONIC APPARATUS, IN PARTICULAR WELDING MACHINE OR BATTERY CHARGER

The present invention concerns an electrical or electronic apparatus, in particular welding machine or battery charger, comprising processing and controlling electronic means (M1, M2) connected to a sensing electronic means (S1, S1', TR0, VT1, RT1, CT1, R8, CT2, Z1, Z2, Z3, Z4, Z5, Z6, Z7, R4, CT3, ST1, ST2, D12, Q1) from which it receives one or more detection signals of one or more electrical and/or physical quantities related to an apparatus operation, said processing and controlling electronic means (M1, M2) being capable to determine one or more conditions of apparatus operation on the basis of said one or more detection signals, the apparatus being capable to be power supplied through a plurality of terminals (F, N, GND) by a mains comprising a ground conductor to which a ground terminal (GND) of said plurality of terminals (F, N, GND) is connectable, the apparatus being characterised in that said sensing electronic means comprises or consists of a device (S1) for sensing a connection ...

DIGITAL COMMUNICATION BASED ARC CONTROL WELDING SYSTEM AND METHOD

A welding system includes components equipped with digital communications circuitry for synchronization and coordination of tasks (54,60,68,80) associated with the welding operation. The tasks may be initiated and terminated independently or in coordination based upon synchronization of this circuitry. Certain of the tasks may be performed by the components in an open-loop manner or in a closed-loop manner based upon feedback of welding parameters. Moreover, certain tasks may be independent of one another, or interdependent although carried out in parallel by the different system component.

METHOD FOR PROVIDING REAL-TIME MONITORING OF CONTACT TIP PERFORMANCE

A method for tracking contact tip deterioration in real time in accordance with the present invention includes establishing a reference that relates welding parameters during welding production to contact tip life; monitoring welding parameters of a contact tip during use; comparing the monitored welding parameters to the reference; providing real-time feedback to an operator; and predicting contact tip failure from the comparison.

WELDING DEVICE FOR REMOTELY CONTROLLING WELDING POWER SUPPLY SETTINGS

A welding device for remotely controlling welding power supply settings is provided. One embodiment of the welding device includes a welding pendant (14) having a control panel (24) configured to control a plurality of settings of a welding power supply (12). The control panel (24) is not part of the welding power supply (12) and the plurality of settings includes a welding current output by the welding power supply. The welding pendant (14) also includes a welding power input (32) configured to receive welding power and data from the welding power supply (12) via a welding power cable (28). The welding power is combined with the data such that the data is provided over the welding power cable.

POLARITY SENSING WELDING WIRE FEEDER SYSTEM AND METHOD

A welding wire feeder includes a welding wire feed drive configured to drive welding wire towards a welding application, wire feed control circuitry coupled to and configured to control the welding wire feed drive. The welding wire feeder includes power conversion circuitry configured to receive polarized input power from a welding power source via input connections with defined polarities and to convert the polarized input power to welding output, sensing circuitry configured to detect the polarity of the polarized input power when connected to the input connections, and welding process control circuitry. The welding process control circuitry is coupled to the power conversion circuitry and the sensing circuitry. The welding process control circuitry is configured to provide the polarized input power to the power conversion circuitry only if the polarity of the polarized input power corresponds to the defined polarities of the input connections.

POLARITY SENSING WELDING WIRE FEEDER SYSTEM AND METHOD

A welding wire feeder includes a welding wire feed drive configured to drive welding wire towards a welding application, wire feed control circuitry coupled to and configured to control the welding wire feed drive. The welding wire feeder includes power conversion circuitry configured to receive polarized input power from a welding power source via input connections with defined polarities and to convert the polarized input power to welding output, sensing circuitry configured to detect the polarity of the polarized input power when connected to the input connections, and welding process control circuitry. The welding process control circuitry is coupled to the power conversion circuitry and the sensing circuitry. The welding process control circuitry is configured to provide the polarized input power to the power conversion circuitry only if the polarity of the polarized input power corresponds to the defined polarities of the input connections.

WELDING SYSTEM AND METHOD WITH A SENSOR FOR SENSING A PARAMETER INDICATIVE OF THE DIAMETER OF A WELDING CONSUMABLE

The present disclosure provides a welding system capable of detecting a size of a welding material and automatically implementing appropriate arc starting parameters. The welding system includes a welder, a welding torch (10), and a sensor (31), in which the sensor (31) is configured to detect the size of the welding material, directly or indirectly. The welder is automatically configured to produce an arc having the arc starting parameters determined from the size of the welding material detected by the sensor (31). The present disclosure decreases operational error by automatically changing arc starting parameters and/or welding parameters based upon a change in welding material size, rather than requiring an operator to manually change the arc starting parameters and/or welding parameters.

WIRELESS COMMUNICATION NETWORK SENSOR INFORMATION FOR CONTROL OF INDUSTRIAL EQUIPMENT IN HARSH ENVIRONMENTS

In certain embodiments, a system includes a master node device. The master node device includes communication circuitry configured to facilitate communication with a welding power supply unit via a long-range communication link, and to facilitate wireless communication with one or more welding-related devices via a short-range wireless communication network. The master node device also includes control circuitry configured to receive sensor data from one or more sensors within a physical vicinity of the short-range wireless communication network, and to route the sensor data to final destinations for the one or more sensors.

WELDING SYSTEM FOR AND METHOD OF WELDING USING A GENERATOR ENGINE SPEED CONTROL

An engine (16) driven welder generator (18) is controlled based upon power draw for welding and other applications. Once a welding arc is initiated, the power draw is monitored. The engine (16) speed, and therefore the power output of the generator (18), may be increased or maintained based upon the power draw. The power draw may include both welding power draw and auxiliary power draw. The engine (16) speed is increased in increments. The initial engine (16) speed and subsequent increments may depend upon particular welding processes or regimes.

HYBRID WELDING CONTROL TECHNIQUE

A hybrid welding system is provided. In one embodiment, the welding system includes an engine-driven generator, an energy storage device, a contactor, and a controller. The controller may be configured to control delivery of weld power from the generator when a commanded output is below a threshold level, and from both the generator and the energy storage when the commanded output is above the threshold level. Closing of the contactor enables the energy storage device to contribute to weld power during welding operations and to be charged by the generator output independent of charging between weld operations. Additional hybrid welding systems and methods are also disclosed.

Distributed Processing Control System for Automatic Welding Operation

WELD QUALITY MEASUREMENT

This invention concerns weld quality measurement. In particular it concerns an apparatus and a process for measuring on-line, while the welding process is under way, the quality of the resulting weldment. The invention is applicable to spray-transfer gas-metal arc welding, short-circuiting transfer gas-metal arc welding, pulse welding, radiofrequency resistance welding and submerged arc welding. It involves the measurement of voltage or current and the generation of an artificial signal for the other. A two dimensional signal analysis then produces data for comparison with data obtained from a high quality weld.

Verfahren und Vorrichtung zur Überwachung des Schweissablaufes bei Elektroschweissverfahren, insbesondere Lichtbogen- und Elektroschlackeschweissverfahren

Vorrichtung an einer Elektroschweisseinrichtung zur Kontrolle des Schweissvorgangs

Welding platform and process monitoring system based on wireless communication

SYSTEME DE COMMANDE DE ROBOT SOUDEUR A L'ARC ELECTRIQUE

L'INVENTION CONCERNE UN SYSTEME DE COMMANDE D'UN ROBOT 22 DE SOUDAGE A L'ARC ELECTRIQUE. CE SYSTEME COMPREND UNE CONSOLE DE COMMANDE 10 OU UNE PLURALITE DE POINTS, SUR UNE PIECE A SOUDER 38 ET COMMUNIQUES PAR UNE BOITE D'INSTRUCTION 14 ET UNE TENSION ELECTRIQUE DE SOUDAGE, UNE INTENSITE DU COURANT ELECTRIQUE DE SOUDAGE ET UNE VITESSE DE SOUDAGE FIXEES PAR UN CLAVIER A TOUCHES 28 POUR ETRE SPECIFIEES A CHACUN DESDITS POINTS, SONT MIS EN MEMOIRE DANS UNE UNITE CENTRALE DE COMMANDE CCU ET AFFICHES SUR UN OSCILLOSCOPE CATHODIQUE 12, ET UNE SOURCE D'ENERGIE ELECTRIQUE DE SOUDAGE 18 FOURNISSANT SELECTIVEMENT DEUX COMBINAISONS D'UNE TENSION DE SOUDAGE ET D'UNE INTENSITE DE COURANT DE SOUDAGE SPECIFIEES POUR DEUX PROCEDES DE SOUDAGE A L'ARC ELECTRIQUE RESPECTIVEMENT PULSE ET COURT. L'INVENTION EST APPLICABLE AU SOUDAGE CONTINU AVEC FIL METALLIQUE D'APPORT.

Automatic arc welding plant - having welding head in adjustable angle unit

용접 통합품질관리 정보처리장치 및 그의 용접 통합품질관리 방법

... 본 발명은 현장의 용접기에서 발생한 용접 데이터를 등록한 데이터베이스, 상기 현장의 용접기 T/C장치로부터 용접 데이터를 취합하는 용접관리 장치와 네트워크로 연결된 I/F부 및, 상기 I/F부를 통해 상기 용접관리 장치로부터 현장에서 발생한 용접 데이터를 전송받아 용접품질 판정하는 서버를 포함하고, 상기 서버는 현장의 용접시 발생한 각 용접점의 데이터를 사용자 설정 수집 수량만큼 수집하고, 상기 수집된 데이터에 대하여 설정 용접 데이터 항목 별로 평균 값을 산출하며, 사용자 합불 범위 설정 정보를 입력받아 등록하고, 상기 등록된 사용자 합불 범위 설정 정보를 상기 산출된 평균 값에 대하여 적용해서 상기 설정 용접 데이터 항목 별로 합불범위를 자동 설정하여, 상기 설정된 합불 범위를 기준으로 상기 자동 설정 이후 측정된 현장의 용접 데이터에 대해서 용접품질 판정하는 것을 특징으로 하는 용접 통합품질관리 정보처리장치에 관한 것으로, 용접품질에 관한 여러 가지 제반사항의 지식이 있는 사용자의 정보와 현장에서 실제 발생한 용접 실 데이터를 기반으로 합불범위 상한값과 하한값을 자동 설정해서 현장의 실제 용접 상황을 반영하여 용접품질 판정해서, 용접품질을 정확히 판정한다.

LARGE VOLUME BUTT JOINT WELDING APPARATUS AND THE METHOD THEREOF

용접 방법

... 본 발명은 코러게이션부를 갖는 제1 멤브레인 시트와 제2 멤브레인 시트가 교대로 배열되고, 제1 멤브레인 시트의 측면에서 제2 멤브레인 시트가 교차되고, 제2 멤브레인 시트의 측면에서 제1 멤브레인 시트가 교차되는 액화천연가스 저장탱크의 방벽을 형성하기 위한 용접장치의 용접 방법으로서, 제1 멤브레인 시트의 일측 코너 부분에 미리 용접된 제1 용접 접합부를 감지하고, 제1 용접 접합부로부터 제1 멤브레인 시트의 제1 측면부를 따라 용접을 수행하는 제1 용접 단계; 제1 멤브레인 시트와 제2 멤브레인 시트가 접하는 조글링부의 제1 코너부에 미리 용접된 제2 용접 접합부를 감지하여, 조글링부의 용접 시작점을 인식하고, 조글링부의 제2 코너부에 미리 용접된 제3 용접 접합부의 제1 단부를 감지하여, 조글링부의 용접 종료점을 인식할 때까지, 제2 용접 접합부로부터 조글링부를 따라 용접을 수행하는 제2 용접 단계; 및 제3 용접 접합부의 제2 단부를 감지하여 제1 멤브레인 시트의 측면부 용접 시작점을 인식하고, 제3 용접 접합부로부터 제1 멤브레인 시트의 제1 측면부를 따라 용접을 수행하는 제3 용접 단계를 포함한다. 조글링부를 용접하는 단계에서 조글링부의 양측 코너부에 미리 용접된 용접 접합부를 용접 장치에 의해 감지하여 조글링부의 용접 시작점과 용접 종료점을 인식함으로써, 제1 멤브레인 시트의 측면부와 조글링부의 용접이 연속적으로 수행된다.

아크 용접 제어 방법

... 용접 와이어(1)의 송급 속도(Fw)를 정송 기간(Tas)과 역송 기간(Tar)으로 교대로 전환하고, 단락 기간과 아크 기간을 반복하고, 용접 전류(Iw)를 통전하여 용접하는 아크 용접 제어 방법에 있어서, 상기 용접 전류(Iw)의 평활값을 검출하고, 이 용접 전류 평활값과 미리 정한 전류 설정값이 동일하게 되도록 상기 송급 속도(Fw)의 파형 파라미터를 피드백 제어함으로써, 급전 칩ㆍ모재간 거리가 변동되어도, 용접 전류 평활값을 일정하게 유지할 수 있어, 용입 깊이를 균일화할 수 있다.

용접 장치 및 용접 시스템

... 튜브들 사이의 맞대기 용접을 하는 용접 장치(1)는 테이블(4)을 구비하고 있다. 테이블(4)은 용접 토치(21)가 장착된 원호형 회전 부재(23)와, 이 회전 부재(23)를 튜브의 중심축 주위로 회전시키는 기어열(3)을 지지한다. 또한, 용접 장치(1)는 테이블(4)을 튜브의 중심축과 직교하는 제1 방향으로 이동시키는 제1 이동 기구(5)와, 제1 이동 기구(5)를 튜브의 중심축 및 제1 방향과 직교하는 제2 방향으로 이동시키는 제2 이동 기구(6)를 구비하고 있다.

sistema do tipo soldagem e método de calcular um custo de uma operação de soldagem, com calculador de custo

WELDING RESOURCE PERFORMANCE COMPARISON SYSTEM AND METHOD

Welding device and welding method

The invention relates to a device for welding a welding stud to a substrate, comprising a welding gun, which comprises a housing and a stud holder for the welding stud, comprising a welding unit, comprising a first electric cable for conducting welding current from the welding unit to the welding gun, comprising a second electric cable for conducting the welding current from the substrate to the welding unit, comprising a gas container, and comprising a gas line for conducting gas from the gas container to the stud holder, characterised in that the gas container is carried by the welding unit.

SAETT OCH ANORDNING FOER SVETSOEVERVAKNING

A welding system

A welding system comprising a power supply (1), a control device (2) for controlling the power supply and a TIG welding electrode (4) connectable to the power supply. The system also comprises means for measuring time, and that the control device (2) is arranged to change the electric current to be led to the welding electrode (4) evenly in function of time.

DEVICE AND METHOD FOR SIMULATING A WELDING PROCESS

The invention relates to a device (1) and a method for simulating a welding process. The device comprises a computer (2) having an input device (11) and an output device (6), a welding torch (3), a magnetic position monitoring device (5) having at least one transmitter (13) and a plurality of sensors (14), a retaining device (15) for a workpiece (4) used for the simulation and a visualization device (16) for generating a two- or three-dimensional image (29) on the output device (6). The retaining device (15) has a recess (18) into which the workpiece (4) can be inserted, at least one transmitter (13) of the position monitoring device (5) being arranged below the recess (18) at as small a distance from the workpiece (4) as possible, and the retaining device (15) being designed as a small, portable box (19) to be placed on a table (10).

SHORT ARC WELDING SYSTEM

A system for controlling a weld-current in an arc welding apparatus for short arc welding comprising a current regulator included in a voltage feedback loop from a power supply to a welding electrode and a ramp generator arranged to provide current ramps during a short circuit phase at said welding electrode.

AUTOMATON FOR RAIL MAINTENANCE, AND IMPLEMENTATION METHOD

The present invention relates to an electric-arc welding automaton (10) for maintaining or repairing rails and turnouts, the automaton including a frame (11) and welding equipment (12) that includes a torch (13) for welding a rail area, wherein the frame is provided with at least two means (16, 17) for bearing on a rail or turnout. Said two means and the torch are substantially aligned, and the torch includes a means (51, 54, 56) for moving on at least two horizontal axes. The automaton is characterized in that it is provided with a means (14, 37) enabling the following steps to be carried out: within an at least two-dimensional frame of reference, storing spatial coordinates of points (P) forming at least two polygons defining at least two separate work surfaces (42, 43, 44) inside an area (40) to be welded; and implementing a welding program (37) including the movement of the torch relative to the frame so as to sequentially operate on all of said separate work surfaces. The invention ...

ARC WELDING POWER SUPPLY AND METHOD OF CONTROLLING AN ARC WELDING SYSTEM WITH CONTROL OF THE HEAT INPUT IN THE WELDING OPERATION

A system (100) for and a method of controlling the heat input in a welding operation are provided. The system (100) includes an arc welding power supply (110) configured to output a welding waveform to a welding torch (130). The welding power supply (110) includes a waveform generator (116) to generate an output welding waveform (200). The power supply (110) also includes a controller (118) to optimize the output welding waveform based on a desired welding temperature. The optimization is performed by adjusting at least one of a power ratio and a duration ratio. The power ratio is a ratio of a power of a negative portion of the welding waveform to a power of a positive portion of the welding waveform, and the duration ratio is a ratio of a duration of a negative portion of the welding waveform to a duration of a positive portion of the welding waveform. The desired welding temperature is one of a temperature setpoint and a temperature range.

Offline teaching method

A three-dimensional rectangular coordinate system is set in which the direction of a weld line is the Y direction, a direction perpendicular to a surface of a material to be welded is the Z direction, and a direction perpendicular to the Y direction and the Z direction is the X direction. A coordinate system A of X A Y A Z A is set as a previous stage coordinate system, which ranges from a previous step to a current step, and a coordinate system B of X B Y B Z B is set as a next stage coordinate system, which ranges from the current step to a next step. The weld line is defined by these coordinate systems that use a workpiece as a reference, and an operator specifies the amount of travel of a torch in these workpiece coordinate systems. By this method, offline teaching can be accurately performed in a welding system without requiring skill in operation.

Remote output control for an electric welder power supply

A remote output control for controlling the output level of an electric welder power supply at a remote location and providing a source of isolated electrical power at the remote location is disclosed. The remote output control includes a water-proof, sealed housing fitted with an electrical receptacle and a potentiometer. A cable construction is electrically connected to the electrical receptacle and the potentiometer at one end and is provided with electrical plugs at the opposite end. A molded over wire y-adaptor is also included in the cable construction.

Manual welding apparatus having an automatic wire retract method

A method providing a manual welding apparatus configured to supply a welding wire to a welding gun. The welding gun has a trigger and an opening where the welding wire extends when the trigger is activated. The method also has a computer with a user interface that includes an automatic wire retract program. The program monitors the welding gun and determines when the trigger is disabled. The program indicates when a first condition is satisfied and retracts the welding wire so the welding wire does not extend from the opening of the welding gun.

Welding device and carbon dioxide gas shielded arc welding method

A welding device includes a power supply circuit for applying a voltage across a torch and a base metal, and a power supply control device. The power supply control device controls the power supply circuit such that a high level current is output during a first arc period Ta 1 that is the initial period of an arc period, and an arc current corresponding to a regulated welding voltage is output during a second arc period Ta 2 that is the latter period of the arc period. The power supply control device controls the power supply circuit such that a high level current is generated having a waveform increasing and decreasing at a constant frequency and constant amplitude superimposed on the high level current. By superimposing the waveform, the elevation of a droplet caused by an repelled force by the arc can be prevented, allowing a droplet to be formed in stabilization.

WELDING SYSTEM

The movement of a single electrode by a welding robot system (a) is followed by the movement of a single electrode by another welding robot system (b). By constructing the single electrode of one welding robot system (a) and the single electrode of the another welding robot system (b) to perform welding simultaneously in the same direction on the same welding line, the degrees of freedom of the robots are not restricted, the available welding range becomes wide, and constraints on the posture of the robots are eliminated, compared with a case where a tandem welding-dedicated torch is used. 2. The welding system of claim 1 ,wherein the two welding robot systems are used. This application is a divisional of U.S. patent application Ser. No. 13/003,673, filed Jan. 11, 2011, which is a U.S. National Phase Application of PCT International Application PCT/JP2010/000927, which is incorporated herein by reference.The present invention relates to a welding method and a welding system which uses a plurality of welding robot systems, and performs simultaneous welding on one welding line using welding electrodes mounted on the welding robot systems.Conventionally, in a welding method at production sites, welding robots have been introduced to advance automation and labor saving. Moreover, in recent years, so-called high-deposition welding with a large amount of a consumable welding electrode (that is, a welding wire) which melts and transfers to a base material tends to be performed in order to achieve high efficiency in the welding method. “Tandem welding” of aligning two electrodes on a welding line and performing one-pool two-arc welding is often adopted, as a welding method for performing high-deposition welding while maintaining high welding quality.A two-electrode integrated torch, or two single-electrode torches which are fixedly arranged in proximity to each other are generically referred to as a “tandem welding-dedicated torch” for convenience of the following ...

Hybrid pulsed-short circuit welding regime

Welding power is generated by first generating two different current waveforms, and comparing the waveform values for control intervals to select which waveform provides the greater current. The waveforms are for different transfer modes, such as one for a pulsed arc portion, and another for a short-circuit transfer mode or for short-circuit clearing. The waveforms may be programmed by settings in a state machine. A balance or relative prioritization in the comparison may be influenced by user inputs. The resulting hybrid process has aspects of both spray transfer and short-circuit transfer modes.

Welding monitoring system and method

Provided are a system and a method for monitoring welding operations. The system includes a welding machine, a current sensor sensing an operation time of the welding machine and a welding current, a welding information database storing information of the operation time of the welding machine and the welding current for each welding operator and storing information of a consumed charge amount of the welding machine, which is preset for each welding operation process, a data analyzer checking a charge amount consumed for the operation time by using the sensed operation time of the welding machine and the welding current and determining whether the welding operator achieves a task goal of a corresponding process by comparing the checked consumed charge amount with the preset consumed charge amount for a process performed by the welding machine, and a display unit outputting a result of the determining, performed by the data analyzer, whether the welding operator achieves a task goal of a corresponding process.

SHORT ARC WELDING SYSTEM

A system for controlling a weld-current in an arc welding apparatus for short arc welding comprising a current regulator included in a voltage feedback loop from a power supply to a welding electrode and a ramp generator arranged to provide current ramps during a short circuit phase at said welding electrode. 1. A system for controlling a weld-current in a direct current arc welding apparatus for short arc welding comprising:a current regulator included in a voltage feedback loop from a power supply to a welding electrode; anda ramp generator arranged to provide current ramps during a short circuit phase at said welding electrode,wherein said current regulator and ramp generator are connected in parallel and a reference current for said power supply to the welding electrode.2. A system for controlling a weld-current according to claim 1 , wherein said reference current is the sum of an output current from said current regulator and a current ramp provided from said ramp generator.3. A system for controlling a weld-current according to claim 1 , wherein said voltage feedback loop includes a subtraction node at which a feedback error is generated from the difference between a measured arc voltage and a reference voltage.4. A system for controlling a weld-current according to claim 1 , wherein said voltage feedback loop includes an open circuit detector which is arranged to detect that an open circuit state is present and to suppress a feedback error when an open circuit state is detected by said open circuit detector.5. A system for controlling a weld-current according to claim 4 , wherein said open circuit detector is connected to a switch which is arranged to connect or disconnect an input said current regulator with an output of said subtraction node in dependence of whether an open circuit state is detected or not.6. A system for controlling a weld-current according to claim 1 , wherein said current regulator is a PI regulator.7. A system for controlling a weld- ...

Tractor unit drive gear engagement device

A travel drive gear engagement mechanism for a tractor unit includes a clutch lever that has a cam portion. The clutch lever is configured to rotate between a first position and a second position at a point that is offset from a center of an elongated portion of the cam portion. The engagement mechanism also includes a connecting member that operatively connects the cam portion of the clutch lever to a drive gear of a tractor unit. The connecting member is operatively connected to the cam portion at the offset point. The clutch level and connecting member are configured such that the drive gear engages a track gear when the clutch lever is in the first position and disengages from the track gear when the clutch lever is in the second position.

System and method for mounting a tractor unit on a guide track

A tractor unit mounting mechanism includes a clamping assembly that is configured to engage and disengage the tractor unit to a track guide. The tractor unit includes at least two pivot blocks with each pivot block including at least one rolling device and a locking mechanism. The at least one rolling device is designed to roll on a rail of the guide track. The clamping assembly is configured to operatively connect the at least one rolling device with the guide track when the tractor unit is engaged. The pivot block is configured to pivot such that the at least one rolling device can conform to a profile, e.g., a concave profile, convex profile, a straight profile, or any combination thereof, of the guide track as the tractor unit is engaging the guide track. The locking mechanism, e.g., a bushing, is configured to prevent the pivot block from pivoting once the tractor unit has engaged to the guide track.

TORCH LEAD/LAG ANGLE ADJUSTMENT DEVICE

A lead/lag torch angle adjustment system for a weld held. The weld head device includes a torch head assembly that includes an electrode. The weld head device also includes a support device that supports the torch head assembly and a barrel assembly that is operatively connected to the torch head assembly and the support device. The barrel assembly is configured to change at least one of a lead angle and a lag angle of the electrode with respect to a workpiece. The barrel assembly includes an adjustment mechanism that includes a first section that is operatively connected to the torch head assembly. The adjustment mechanism also includes a second section that is configured to accept the mount plate. The barrel assembly also includes a mount plate that is operatively connected to the support device and at least one barrel clamp. The barrel clamp is configured to attach to the mount plate and also configured to accept the second section. In some embodiments, the second section is conical shaped, and a transverse movement of the at least one barrel clamp produces a force on the conical shaped second section that forces the second section towards the mount plate. 1. A weld head device , comprising:a torch head assembly, the torch head assembly comprising an electrode;a support device, the support device supporting the torch head assembly; anda barrel assembly operatively connected to the torch head assembly and the support device, the barrel assembly configured to change at least one of a lead angle and a lag angle of the electrode with respect to a workpiece,wherein the barrel assembly comprises,a mount plate that is operatively connected to the support device, a first section that is operatively connected to the torch head assembly, and', 'a second section configured to accept the mount plate, and, 'an adjustment mechanism comprising,'}at least one barrel clamp configured to attach to the mount plate and configured to accept the second section.2. The weld head device ...

System for mounting a tractor unit on a guide track

A tractor unit mounting mechanism includes a clamping assembly that is configured to engage and disengage a tractor unit to a guide track. The guide track includes a first rail and a second rail. The mounting assembly also includes at least one pivot block set that has a first pivot block and a second pivot block. Each of the first pivot block and the second pivot block includes a first rolling device and a second rolling device. When the tractor unit is in a disengaged position, a first distance between an outer portion of the first rail and an outer portion of the second rail is greater than a second distance between the first rolling devices of the at least one pivot block set, and the first distance is less than a third distance between the second rolling devices of the at least one pivot block set.

SYSTEMS AND METHODS FOR DIAGNOSING SECONDARY WELD ERRORS

A controller for a welding system adapted to determine a value of a weld secondary parameter across a weld secondary component based on a sensed parameter is provided. The controller may also be adapted to compare the determined value to a reference value range and to alert a user to a presence and location of a weld secondary error when the determined value is outside the referenced value range. 1. A controller for a welding system , configured to:receive an initial sensed parameter while a welding torch tip is shorted to a weld secondary component;determine, based on the initial sensed parameter, an initial value of the initial sensed parameter of the weld secondary component;time stamp the determined initial value of the sensed parameter;store the time stamped determined initial value of the sensed parameter to a memory;receive a second sensed parameter while the welding torch tip is shorted to the weld secondary component;determine, time stamp, and store a second value of the second sensed parameter of the weld secondary component;compare the time stamped determined initial value of the initial sensed parameter to the time stamped determined second value of the second sensed parameter; andalert a user to a presence and location of a weld secondary component error when there is a difference between the initial value of the initial sensed parameter and the second value of the second sensed parameter.2. The controller of claim 1 , wherein the initial sensed parameter and the second sensed parameter are at least one of a voltage claim 1 , a current claim 1 , a power claim 1 , a resistance claim 1 , a conductance claim 1 , and an inductance.3. The controller of claim 1 , wherein the controller is further configured to display one or more plots comparing the initial value of the initial sensed parameter to the second value of the second sensed parameter.4. The controller of claim 1 , wherein the weld secondary component is at least one of weld cabling claim 1 , a ...

APPARATUS AND METHOD FOR DISTINGUISHING BETWEEN TACK-WELDING AND WELDING

An apparatus and method for distinguishing between tack-welding and welding are provided. The apparatus for distinguishing between tack-welding and welding includes: a current sensor configured to detect arc current of a welder; and a distinguish control unit configured to distinguish whether a welding operation performed by the welder is tack-welding or welding based on the arc current detected by the current sensor for a predefined period of time. Accordingly, the amount of work performed by a welding worker can be fairly and accurately evaluated. 1. An apparatus for distinguishing between tack-welding and welding , comprising:a current sensor configured to detect arc current of a welder;a distinguish control unit configured to distinguish whether a welding operation performed by the welder is tack-welding or welding based on the arc current detected by the current sensor for a predefined period of time; anda storage unit configured to store information regarding an amount of tack-weld electronic charges and information regarding an amount of final-weld electronic charges for distinguishing whether a welding operation performed by the welder is tack-welding or final-welding,wherein the distinguish control unit is further configured to obtain an amount of electronic charges consumed by the welder based on the current detected by the current sensor for the predefined period of time, and compare the obtained amount of consumed electronic charges with the information regarding an amount of tack-weld electronic charges and the information regarding an amount of final-weld electronic charges to distinguish whether the welding operation performed by the welder is tack-welding or final welding.23-. (canceled)4. A method of distinguishing between tack-welding and welding , comprising:detecting arc current of a welder; anddistinguishing whether a welding operation performed by the welder is tack-welding or welding based on the arc current detected for a predefined period of ...

METHOD OF AUTOMATICALLY SETTING A WELDING PARAMETER FOR MIG/MAG WELDING AND A CONTROLLER FOR PERFORMING THE METHOD

A method of automatically setting a welding parameter for MIG/MAG welding including the following steps:—initiating (S) a parameter setting welding operation;—measuring (S) a welding voltage and retrieving (S) a parameter representing a wire feed speed during said parameter setting welding operation; and—identifying (S) a second function mapping said welding current to said welding voltage from said measured welding voltage and said retrieved parameter. 1. A method of automatically setting a welding parameter for MIG/MAG welding including the following steps:initiating a parameter setting welding operation; comprisingmeasuring a welding voltage and retrieving a parameter representing a wire feed speed during said parameter setting welding operation; andidentifying a second function mapping said parameter representing a wire feed speed to said welding voltage from said measured welding voltage and said retrieved parameter.2. A method according to claim 1 , further comprising:determining a welding parameter depending on wire welding material from said second function.3. A method according to claim 1 , further comprisingdetermining a wire welding material from said second function.4. A method according to claim 3 , wherein a desired welding current is determined from a set actual thickness of a work piece in dependence on said wire welding material determined from said second function.5. A method according to claim 1 , further comprising determining a globular area transition current from said determined wire welding material.6. A method according to claim 5 , further comprising adjusting a short-circuiting percentage from a first larger value to a second smaller value when said desired welding current is increased to a value equal or greater than said globular area transition current claim 5 , and by adjusting said short-circuiting percentage from a second smaller value to a first larger value when said desired welding current is decreased to a value equal or smaller ...

METHOD OF AUTOMATICALLY SETTING A WELDING PARAMETER FOR MIG/MAG WELDING AND A CONTROLLER FOR PERFORMING THE METHOD

A method of automatically setting a welding parameter for MIG/MAG welding including the following steps: initiating (S) a parameter setting welding operation; detecting (S) a response welding current at a present wire feed speed during said parameter setting welding operation; determining (S) a first function mapping said response welding current to said set wire feed speed; determining (S) a desired wire feed speed from said first function and said desired welding current. 1. A method of automatically setting a welding parameter for MIG/MAG welding including the following steps:initiating a parameter setting welding operation; comprisingdetecting a response welding current at a present wire feed speed during said parameter setting welding operation;identifying a first function mapping a welding current to a wire feed speed from said response welding current and said present wire feed speed;determining a desired welding current; anddetermining a desired wire feed speed from said first function and said desired welding current.2. A method according to claim 1 , further comprisingsetting an actual thickness of a work piece to be welded; anddetermining said desired welding current from said set actual thickness of the work piece.3. A method according to claim 2 , wherein said first function forms a linear mapping.4. A method according to claim 3 , wherein said linear mapping is expressed as v=k*I claim 3 , where v is the wire feed speed claim 3 , I the current and p is a value between 1 and 2.5. A method according to wherein said parameter setting welding operation comprises establishment of a short arc welding process defined by a short-circuiting time and an arc time claim 1 , and controlling the melting efficiency of the electrode so that the melting efficiency is increased if a measured short-circuiting time of a total period time claim 1 , where the period time is the sum of the short-circuiting time and the arc time claim 1 , exceeds a defined adjustable set ...

Electrical or electronic apparatus, in particular welding machine or battery charger

The present invention concerns an electrical or electronic apparatus, in particular welding machine or battery charger, comprising processing and controlling electronic means (M 1, M 2 ) connected to a sensing electronic means (S 1, S 1′, TR 0, VT 1, RT 1, CT 1, R 8, CT 2, Z 1, Z 2, Z 3, Z 4, Z 5, Z 6, Z 7, R 4, CT 3, ST 1, ST 2, D 12, Q 1 ) from which it receives one or more detection signals of one or more electrical and/or physical quantities related to an apparatus operation, said processing and controlling electronic means (M 1, M 2 ) being capable to determine one or more conditions of apparatus operation on the basis of said one or more detection signals, the apparatus being capable to be power supplied through a plurality of terminals (F, N, GND) by a mains comprising a ground conductor to which a ground terminal (GND) of said plurality of terminals (F, N, GND) is connectable, the apparatus being characterised in that said sensing electronic means comprises or consists of a device (S 1 ) for sensing a connection of the ground terminal (GND) to the ground conductor of the mains.

METHOD FOR POSITIONING A WELDING HEAD BY MEANS OF MICROWAVES

A method for positioning a welding head or welding torch of a robot welding system over a workpiece sends microwaves as a measuring signal from a transmitter arranged on the welding head to the workpiece. The microwaves reflected on the workpiece are received by at least one receiver arranged on the welding head, and the received microwaves are evaluated by an evaluation module for determining the position of a workpiece edge. The microwaves are sent from at least one transmitter in different positions on the welding head, and the reflected microwaves are received, with a change of polarization, by the at least one receiver, having a polarization plane arranged at an angle to the polarization plane of the transmitter. The position of the edge is determined by the evaluation module at least on the basis of a phase change of the respective microwaves reflected on the different positions. 1141414261426. A method for positioning a welding head of a robot welding system over a workpiece () , wherein for the position determination a measuring signal is sent in the form of microwaves from a transmitter arranged on the welding head to the workpiece () , and the microwaves reflected on the workpiece () are received by at least one receiver arranged on the welding head , and the received microwaves are evaluated by an evaluation module for determining the position of an edge () of the workpiece () , wherein the microwaves are sent from at least one transmitter in different positions on the welding head , and the reflected microwaves are received , with a change of polarization , by at least one receiver arranged on the welding head , having a polarization plane arranged at an angle to the polarization plane of the transmitter , and the position of the edge () is determined by the evaluation module at least on the basis of a phase change of the respective microwaves reflected at the different positions.2. The method according to claim 1 , wherein at least one transmitter- ...

OPTICAL-BASED WELD TRAVEL SPEED SENSING SYSTEM

A travel speed sensing system includes an optical sensor configured to be coupled to a welding torch. The optical sensor is configured to sense light incident on the optical sensor, and the travel speed sensing system is configured to determine a travel speed of the welding torch, a direction of the welding torch, or both, based on the sensed light. 1. A travel speed sensing system , comprising:an optical sensor configured to be coupled to a welding torch, wherein the optical sensor is configured to sense light incident on the optical sensor, and wherein the travel speed sensing system is configured to determine a travel speed of the welding torch, a direction of the welding torch, or both, based on the sensed light.2. The travel speed sensing system of claim 1 , wherein the optical sensor comprises a range finding mechanism configured to determine a distance from the optical sensor to a surface claim 1 , and wherein the travel speed sensing system is configured to determine the travel speed based on the distance.3. The travel speed sensing system of claim 1 , wherein the travel speed sensing system is configured to determine the travel speed using optical flow algorithms applied to images acquired via the optical sensor.4. The travel speed sensing system of claim 1 , wherein the optical sensor is configured to acquire images of a surface in a weld area to determine the travel speed of the welding torch.5. The travel speed sensing system of claim 4 , wherein the surface is augmented by application of a visible pattern to the surface claim 4 , and the optical sensor is configured to determine the travel speed of the welding torch based on the pattern.6. The travel speed sensing system of claim 1 , comprising a positioning mechanism configured to maintain the optical sensor at a specific distance relative to a surface in a weld area across a range of positions of the welding torch relative to the workpiece.7. The travel speed sensing system of claim 1 , comprising an ...

HELMET-INTEGRATED WELD TRAVEL SPEED SENSING SYSTEM AND METHOD

A welding system includes a first sensor associated with a welding helmet and configured to sense a parameter indicative of a position of a welding torch relative to the welding helmet. The travel speed sensing system also includes a processing system communicatively coupled to the first sensor and configured to determine a position of the welding torch relative to a workpiece based on the sensed first parameter. 1. A welding system , comprising:a first sensor associated with a welding helmet and configured to sense a first parameter indicative of a position of a welding torch relative to the welding helmet; anda processing system communicatively coupled to the first sensor and configured to determine a position of the welding torch relative to a workpiece based on the sensed first parameter.2. The welding system of claim 1 , wherein the processing system is configured to determine a travel speed of the welding torch based on the determined position.3. The welding system of claim 1 , comprising:a second sensor configured to sense a second parameter indicative of a position and an orientation of the welding helmet;wherein the processing system is communicatively coupled to the second sensor and configured to determine the position of the welding torch based on the second parameter.4. The welding system of claim 3 , wherein the second sensor is external to the welding helmet claim 3 , and configured to monitor the second parameter by identifying a marking on the welding helmet.5. The welding system of claim 4 , wherein the marking comprises a passive visual marking.6. The welding system of claim 4 , wherein the marking comprises an infrared LED.7. The welding system of claim 4 , wherein the marking comprises a geometric feature of the welding helmet.8. The welding system of claim 4 , wherein the marking comprises an edge of the welding helmet.9. The welding system of claim 3 , wherein the second sensor is disposed on the welding helmet.10. The welding system of claim ...

WELDING DEVICE

A welding device applies weld material between two work pieces (P P) so as to connect the work pieces (P P) mechanically with one another. The welding device has a welding head () and a probe head (). The welding head () performs a welding action in respect of the work pieces (P P) during transport of the welding device along an operating direction (OD) in a welding plane (WP); and the probe head (), which is arranged upstream of the welding head () relative to the operating direction (OD), measures a set of geometric properties of a gap (G) between the work pieces (P P). Thus, the welding head () can be properly positioned to attain a desired application of the weld material in the gap (G). Moreover, first adjustment means allow a position of the probe head () relative to a position of the welding head () to be varied angularly by rotating at least one of the probe head () and the welding head () around a first axis (A) oriented essentially perpendicular to the welding plane (WP). Thereby, welding in narrow and curved gaps (G) is facilitated. 111-. (canceled)12. A welding device for applying weld material between two work pieces to connect the work pieces mechanically with one another , the welding device comprising:a welding head configured to perform a welding action in respect of the work pieces during transport of the welding device along an operating direction in a welding plane, anda probe head arranged upstream of the welding head relative to the operating direction, the probe head configured to measure a set of geometric properties of a gap between the work pieces to enable positioning of the welding head to apply weld material in the gap,wherein that the welding device comprises a first adjustable coupling to allow a position of the probe head relative to a position of the welding head to be varied angularly by rotating at least one of the probe head and the welding head around a first axis oriented perpendicular to the welding plane.13. The welding device ...

IN-PROCESS WELD GEOMETRY METHODS & SYSTEMS

In-process weld geometry methods and systems are discussed, enabled, and provided. Some embodiments include in-process welding devices to compensate for error associated with detected weld penetration depth. Exemplary devices can generally include an ultrasonic energy source, an ultrasonic receiving sensor, and a controller. The ultrasonic energy source can be disposed to generate ultrasonic energy through a first specimen being welded to a second specimen. A weld seam can be used to join the first specimen to the second specimen. The ultrasonic sensor can be disposed on an opposite side of the weld seam from the ultrasonic energy source, and configured to detect ultrasonic energy propagated from the first specimen side of the weld seam to the second specimen side of the weld seam. The controller can be disposed to receive data from the ultrasonic sensor, configured to determine time of flight signal data corresponding to arrival of the ultrasonic energy detected by the ultrasonic sensor, and configured to compare the determined time of flight signal data to a model to compute error associated with the determined time of flight signal data due to a dynamic welding environment. Other aspects, embodiments, and features are claimed and described. 1. A method comprising:generating ultrasonic wave energy, with an ultrasonic energy source, through a weld seam joining a first specimen and a second specimen;detecting the ultrasonic wave energy after the ultrasonic wave energy has propagated from the first specimen side of the weld seam to the second specimen side of the weld seam;processing the detected ultrasonic wave energy to output measured time of flight data;correcting the measured time of flight data using an error compensation model to output corrected time of flight data; andadjusting one or more welding parameters of a welding apparatus, directly and in real time, using the corrected time of flight data.2. The method of claim 1 , wherein the corrected time of ...

WELDING QUALITY CLASSIFICATION APPARATUS

The welding quality classification apparatus relating to the present invention is an apparatus, wherein a data point indicating feature information of a welded joint to be classified whose welding quality is unknown is mapped to a point in a mapping space which has a dimensional number higher than the number of the features constituting the feature information, and the welding quality of a welded joint to be classified is classified based on which of regions of two welding qualities, which are formed by separating the mapping space with a decision boundary, contains the mapped point, and wherein a discriminant function is determined by adopting a weight which minimizes the sum of the classification error corresponding to classification accuracy of a training dataset and a regularization term having a positive correlation with the dimensional number of the discriminant function as weight for each feature constituting the discriminant function indicating the decision boundary. 1. A welding quality classification apparatus in which a data point indicating feature information whose components include a plurality of features , the plurality of features being obtained based on at least one of physical quantities including welding current , welding voltage , welding force of welding electrode , and displacement of welding electrode when a welded joint to be classified whose welding quality is unknown is welded , is mapped to a point in a mapping space which has a dimensional number higher than the number of the features constituting the feature information , and determination is made as to which of regions of two welding qualities , which are formed by separating the mapping space , contains the mapped point to classify the welding quality of the welded joint to be classified to be a welding quality corresponding to the region where the mapped point is located , the welding quality classification apparatus comprising:an acquisition section for acquiring the features; a ...

SYSTEM AND METHOD FOR DETERMINING ATTACHMENT AND POLARITY OF A WELDING ELECTRODE

A welding system includes a power source configured to generate power and deliver the power to a welding electrode. The power source comprises a positive stud and a negative stud. The welding system also includes control circuitry configured to determine whether the welding electrode is properly connected to the positive and negative studs of the power source. 1. A welding system , comprising:a power source configured to generate power and deliver the power to a welding electrode, wherein the power source comprises a positive stud and a negative stud; andcontrol circuitry configured to determine whether the welding electrode is properly connected to the positive and negative studs of the power source.2. The welding system of claim 1 , comprising an interface having a display device claim 1 , wherein the control circuitry is configured to display an alert via the display device if the welding electrode is not properly connected to the positive and negative studs.3. The welding system of claim 2 , wherein the control circuitry is configured to display an alert via the display device if a polarity of the welding electrode is not appropriate for a type of welding being performed using the welding electrode.4. The welding system of claim 2 , wherein the control circuitry is configured to display an alert via the display device if the welding electrode is improperly connected to either the positive stud or the negative stud for a type of welding being performed using the welding electrode.5. The welding system of claim 2 , wherein the control circuitry is configured to display a suggested corrective action via the display device.6. The welding system of claim 1 , wherein the determination of whether the welding electrode is properly connected to the positive and negative studs is based at least in part on a type of welding being performed using the welding electrode.7. The welding system of claim 1 , wherein the control circuitry is configured to disable delivery of power ...

WELDING TORCH WITH A TEMPERATURE MEASUREMENT DEVICE

Various welding systems including a welding torch assembly are provided. The welding torch assemblies may include a welding torch adapted to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece. The welding torch assemblies may also include a temperature sensing system integral with the welding torch and adapted to sense a temperature of the workpiece. 1. A welding system , comprising:a welding torch configured to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece; anda temperature sensing system integral with the welding torch and configured to sense a temperature of the workpiece.2. The welding system of claim 1 , wherein the welding torch is a tungsten inert gas welding torch configured to establish the welding arc between a tungsten electrode and the workpiece.3. The welding system of claim 2 , wherein the temperature sensing system comprises a digital temperature probe integral with a cap portion of the tungsten inert gas welding torch.4. The welding system of claim 3 , wherein the temperature sensing system further comprises a digital display configured to display the sensed temperature of the workpiece.5. The welding system of claim 1 , wherein the temperature sensing system is reversibly coupled to the welding torch in a tool-less engagement.6. The welding system of claim 1 , wherein the temperature sensing system is coupled to the welding torch in an engagement that is configured to be irreversible without the use of tools.7. The welding system of claim 1 , wherein the temperature sensing system comprises a non-contact sensor configured to sense the temperature of the workpiece without establishment of physical contact between the non-contact sensor and the workpiece.8. The welding system of claim 1 , wherein the temperature sensing system comprises a contact sensor configured to sense the temperature of the workpiece via physical contact between the ...

Weld Cell System With Communication

A method and apparatus for providing welding-type power is disclosed and includes a means for communicating. 1. A welding-type system that can identify a weld cable , comprising a welding power supply having a controller , a power circuit connected to receive at least one signal from the controller , at least one weld cable connection connected to receive power from the power circuit , and a weld cable locator module having a cable locator output connected to at least one of the controller , the power circuit , and the weld cable connection.2. The welding-type system of claim 1 , wherein the cable locator output is connected to claim 1 , and able to provide an identifier signal to claim 1 , the weld cable connection.3. The welding-type system of claim 1 , wherein the weld cable locator module comprises:a memory, capable of storing cable identifier information;a receiver, capable of receiving a cable identifier signal; anda comparator, connected to compare the stored cable identifier information and the received cable identifier signal;wherein the cable locator output is responsive to the comparator.4. The welding-type system of further comprising claim 3 , a pendant with a cable sensor and a transmitter responsive to the cable sensor.5. The welding-type system of wherein the cable sensor includes an RFID reader.6. The welding-type system of wherein the cable sensor includes a bar code reader.7. The welding-type system of further comprising a weld8. The welding-type system of wherein the transmitter is a wireless transmitter and the receiver is a wireless receiver.9. The welding-type system of further comprising a wire feeder connected to a distal end of the weld cable claim 4 , a power supply binding module in the welding power supply and a wire feeder binding module in the wire feeder claim 4 , wherein the power supply binding module and the wire feeder binding module are responsive to the weld cable locator module.10. A method of locating a distal end of a weld ...

Welding systems having non-contact temperature measurement systems

Welding systems including welding torch assemblies are provided. The welding torch assembly may include a welding torch adapted to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece. Shielding gas may be supplied to the welding torch for establishment of a gas shielding area around a weld pool. The welding torch assembly may also include a temperature sensing system having a non-contact temperature sensor coupled to the welding torch and adapted to sense a temperature of the workpiece at a location outside of the molten weld pool.

ROBOTIC PRE-HEAT AND INTER-PASS WELDING

Disclosed is a robot pre-heat and inter-pass welding device that is capable of pre-heating and welding one or more weld joints using a single robot. Pre-heating and welding models are used to ensure that a desirable pre-heat temperature is maintained on the weld piece at the location of the weld. Infrared temperature sensors are utilized to detect temperature of the weld piece, which are transmitted to a controller, which controls the operation of both the pre-heating and welding. Multiple welds can be performed if additional time is needed for cooling, which reduces the overall time required to perform the welding process. 1. A method of automatically preheating and welding a weld piece using a robot comprising:obtaining welding parameters for a planned weld of a weld piece;entering said welding parameters in a preheat and welding model;generating operating parameters for preheating and welding said weld piece using said preheat and welding model;performing a sample weld using said operating parameters;collecting empirical data from said sample weld;comparing said empirical data with operating parameter limits;performing said preheating and welding process on said weld piece if said operating parameter limits are not exceeded;modifying said preheat and welding model if said operating parameter limits are exceeded using said empirical data to produce a modified preheat and welding model for performing said preheating and welding process on said weld piece.2. The method of wherein said process of generating operating parameters for preheating and welding said weld piece further comprises:calculating a speed of movement of a preheat torch and a number of passes of said preheat torch across a weld joint based upon plate thickness, maximum heating rate and type of material of said weld piece.3. The method of wherein said process of generating operating parameters for preheating and welding said weld piece further comprises:calculating elapsed time for laying each bead ...

SYSTEMS AND METHODS FOR DETECTING WELDING AND CUTTING PARAMETERS

A system for detecting welding, and cutting parameters is provided. One embodiment of the system includes an input terminal configured to receive signals corresponding to welding or cutting parameters from a first welding or cutting device. None of the signals carry welding power. The system also includes an output terminal configured to provide the signals to a second welding or cutting device. The system includes conductors coupled between the input terminal and the output terminal and configured to carry the signals between the input terminal and the output terminal. The system also includes control circuitry configured to detect the welding or cutting parameters from the signals. 1. A system for detecting welding or cutting parameters , comprising:an input terminal configured to receive a plurality of signals corresponding to welding or cutting parameters from a first welding or cutting device, wherein none of the plurality of signals carry welding power;an output terminal configured to provide the plurality of signals to a second welding or cutting device;a plurality of conductors coupled between the input terminal and the output terminal and configured to carry the plurality of signals between the input terminal and the output terminal; andcontrol circuitry configured to detect the welding or cutting parameters from the plurality of signals.2. The system of claim 1 , wherein the control circuitry is configured to store the detected welding or cutting parameters.3. The system of claim 1 , wherein the control circuitry is configured to provide the detected welding or cutting parameters to a remote device.4. The system of claim 1 , wherein the control circuitry is configured to analyze the detected welding or cutting parameters to generate data relating to a welding or cutting application.5. The system of claim 1 , wherein the control circuitry is configured to modify at least one of the plurality of signals by issuing a command claim 1 , interrupting a signal ...

AUTOMATON FOR RAIL MAINTENANCE, AND IMPLEMENTATION METHOD

An arc welding automat for maintaining or repairing rails and switch gears includes a frame, a welding device including a torch for welding an area of a rail, the frame being provided with at least two elements for the support on a rail or a switch gear, these two elements and the torch being substantially aligned, the torch including an element of displacement on at least two horizontal axes. The automat includes an element for performing steps of:—storing, in a reference system having at least two dimensions, space coordinates of points forming at least two polygons defining at least two distinct working surfaces inside an area to be welded;—implementing a welding program including moving the torch with respect to the frame, so as to intervene successively on all the distinct working surfaces. Also disclosed is a welding method for maintaining or repairing rails and switch gears. 14015. Method for welding a localized area () of a rail or a swing gear () , the method including the following steps of:{'b': 15', '10', '11', '13', '54', '56, 'positioning along at least one rail or an swing gear () an electric arc welding automat (), said apparatus including a frame () and a welding torch () supplied with core welding wire, said torch being provided with means (, ) of displacement in the direction of at least two dimensions with respect to the frame;'}placing the torch into a position of reference (Po) with respect to the area to be welded;{'b': 42', '43', '44, 'storing, in a reference system having at least two dimensions (X, Y), the space co-ordinates of points (P) forming at least two polygons defining at least two distinct working surfaces (, , ) inside the area to be welded;'}{'b': '37', 'starting a welding program () involving a displacement of the torch with respect to the frame, so as to intervene successively on the unit of said distinct working surfaces.'}2. Method according to claim 1 , characterized in that:the space co-ordinates of the working surfaces are ...

ARC WELDING CONTROL SYSTEM AND METHOD

The present invention provides an arc welding control system and method capable of simultaneously, sophisticatedly performing a weaving width control operation and a torch height control operation. Influence ratios (δand δ) of influences of a torch height deviation (ΔP) and a groove wall distance deviation (ΔP) with respect to a manipulated variable (Δw) of a weaving width and a manipulated variable (Δz) of a torch height are set in accordance with a groove angle (θ) of a workpiece (). A calculation unit () calculates the manipulated variables (Δz and Δw) of actuators ( and ) regarding the torch height and the weaving width such that the influence ratios (δand δ) become large as the groove angle (θ) becomes large. 1. An arc sensor control system for arc welding for obtaining satisfactory beads in a groove of a workpiece that is a welding target , the arc sensor control system comprising:an actuator configured to cause a welding torch to track a weld line of the workpiece by causing the welding torch to move in a direction of the weld line of the workpiece at a specified torch height while causing the welding torch to move in a cyclic manner in a width direction of the groove of the workpiece with a specified weaving width;a sensor configured to detect a welding current or an arc voltage; obtain from the welding current or the arc voltage a value corresponding to a groove wall distance indicating a horizontal distance between the welding torch and the workpiece at a weaving end portion and a value corresponding to the torch height,', 'calculate a difference between the value corresponding to the groove wall distance and a target value and a difference between the value corresponding to the torch height and a target value,', 'calculate a manipulated variable of the actuator regarding the weaving width from a deviation (hereinafter referred to as a “groove wall distance deviation”) of the value corresponding to the groove wall distance from the target value and a ...

Electrode diameter sensing consumables

The present disclosure provides a welding system capable of detecting a size of a welding material and automatically implementing appropriate arc starting parameters. The welding system includes a welder, a welding torch, and a sensor, in which the sensor is configured to detect the size of the welding material, directly or indirectly. The welder is automatically configured to produce an arc having the arc starting parameters determined from the size of the welding material detected by the sensor. The present disclosure decreases operational error by automatically changing arc starting parameters and/or welding parameters based upon a change in welding material size, rather than requiring an operator to manually change the arc starting parameters and/or welding parameters.

WELDING DEVICE FOR REMOTELY CONTROLLING WELDING POWER SUPPLY SETTINGS

A welding device for remotely controlling welding power supply settings is provided. One embodiment of the welding device includes a welding pendant having a control panel configured to control a plurality of settings of a welding power supply. The control panel is not part of the welding power supply and the plurality of settings includes a welding current output by the welding power supply. The welding pendant also includes a welding power input configured to receive welding power and data from the welding power supply via a welding power cable. The welding power is combined with the data such that the data is provided over the welding power cable. 1. A welding pendant comprising:a control panel configured to control a plurality of settings of a welding power supply, wherein the control panel is not part of the welding power supply and the plurality of settings comprises a welding current output by the welding power supply; anda welding power input configured to receive welding power and data from the welding power supply via a welding power cable, wherein the welding power is combined with the data.2. The welding pendant of claim 1 , wherein the control panel comprises a first part number that is the same as a second part number of a welding power supply control panel.3. The welding pendant of claim 1 , wherein the control panel is interchangeable with a welding power supply control panel.4. The welding pendant of claim 1 , wherein the control panel is the same as a welding power supply control panel.5. The welding pendant of claim 1 , wherein the plurality of settings of the welding power supply comprises all of the settings of the welding power supply.6. The welding pendant of claim 1 , wherein the plurality of settings of the welding power supply comprises a selection of one of a number of welding processes.7. The welding pendant of claim 6 , wherein the welding processes comprise a tungsten inert gas (TIG) welding process claim 6 , a stick welding process ...

WELDING SYSTEM INRUSH CURRENT CONTROL SYSTEM AND METHOD

A welding component, such as a remote pendant or wire feeder includes an inrush current control circuit. The welding component may be coupled to a welding power source when the power sources is live and outputting power. Power is stored in the component, such as in capacitors, for operation of a local power supply, such as for an operator interface, display, and the like. Upon connection to the power source, the current application to the capacitors may be delayed to reduce or prevent arcing. The inrush current may also be limited, as may the voltage, to similarly reduce arcing and to provide additional benefits. 1. A welding component configured to receive power from a welding power supply , the welding component comprising:an energy storage circuit that stores electrical energy when coupled to the welding power supply and provides power for operation of the welding component at least during a period of operation of the welding component;a switching device configured to be open during connection of the welding component to the welding power supply, and to close after connection to charge the energy storage circuit; anda current control circuit coupled to the switching device and configured to close the switching device to regulate application of current to the energy storage circuit upon connection of the welding component to the welding power supply.2. The welding component of claim 1 , wherein the current control circuit is configured to limit inrush current into the energy storage circuit upon connection of the welding component to the welding power supply.3. The welding component of claim 2 , comprising electrical components coupled to a gate of the switching device to modulate operation of the switching device and thereby to limit the inrush current.4. The welding component of claim 1 , wherein the current control circuit is configured to limit arcing of contacts connecting the welding component to the welding power supply.5. The welding component of claim 4 , ...

METHOD AND SYSTEM TO START AND USE COMBINATION FILLER WIRE FEED AND HIGH INTENSITY ENERGY SOURCE FOR WELDING ALUMINUM TO STEEL

A method and system to weld or join workpieces of different materials employing a high intensity energy source to create a weld puddle and at least one resistive filler wire which is heated to at or near its melting temperature and deposited into the weld puddle. 1. A method of welding aluminum and steel , comprising:creating a weld puddle on a steel workpiece with at least one high intensity energy source;causing said weld puddle to impact on an aluminum workpiece to be joined to said steel workpiece;determining an upper threshold value;heating at least one filler wire with a filler wire heating signal from a power source to a temperature such that said filler wire melts in said weld puddle when said filler wire is in contact with said weld puddle;directing said filler wire to said weld puddle such that said filler wire maintains contact with said weld puddle during a welding operation;monitoring a feedback from said filler wire heating signal;shutting off said filler wire heating signal when said upper threshold value is reached by said filler wire heating signal such that no arc is generated between said filler wire and said weld puddle; andturning on said filler wire heating signal to continue heating said filler wire,wherein a weld deposit is created between said steel workpiece and said aluminum workpiece such that said weld deposit penetrates each of said steel and aluminum workpieces and said weld deposit has aluminum in the range of 0.01 to 16% and iron in the range of 0.01 to 10%.2. The method of claim 1 , wherein said weld deposit has aluminum in the range of 11 to 14% and iron in the range of 4 to 8%.3. The method of claim 1 , wherein said at least one filler wire has aluminum in the range of 6.5 to 11.5% claim 1 , nickel in the range of 3 to 7% claim 1 , manganese in the range of 0.7 to 3% claim 1 , iron in the range of 2 to 6% claim 1 , and the remainder of the composition of the at least one filler wire is copper.4. The method of claim 1 , wherein ...

Polarity sensing welding wire feeder system and method

A welding wire feeder includes a welding wire feed drive configured to drive welding wire towards a welding application, wire feed control circuitry coupled to and configured to control the welding wire feed drive. The welding wire feeder includes power conversion circuitry configured to receive polarized input power from a welding power source via input connections with defined polarities and to convert the polarized input power to welding output, sensing circuitry configured to detect the polarity of the polarized input power when connected to the input connections, and welding process control circuitry. The welding process control circuitry is coupled to the power conversion circuitry and the sensing circuitry. The welding process control circuitry is configured to provide the polarized input power to the power conversion circuitry only if the polarity of the polarized input power corresponds to the defined polarities of the input connections.

POWER ROUTING FOR WELDING SUITE

The invention described herein generally pertains to an apparatus for a welding operation having two or more welding tools and a switching device which directs the current to the appropriate welding device for a welding operation. One or more switch devices having two or more settings can be employed to control which device or devices receive current. Moreover, varying remote control techniques can be utilized to control a welding power source or other operatively coupled devices. Powered devices other than welding tools may be used with the switch in embodiments. 1. A system for controlling an electrical current to a first welding tool and a second welding tool , comprising:a switch device operatively coupled to a welding power supply and the first welding tool and the second welding tool that controls the electrical current from the welding power supply to the at least one welding tool; anda control circuit communicatively coupled with the switch device which automatically controls the switching of the switch device between at least a first setting and a second setting,wherein when the switch device is in the first setting a first current is directed to the first welding tool such that the second welding tool electrically isolated from the first current and when the switch device is in the second setting a second current is directed to the second welding tool such that the first welding tool is electrically isolated from the second current, andwherein the switch device is operatively coupled to the welding power supply using at least an integrated power cable.2. The system of claim 1 , wherein the control circuit is housed within the switch device.3. The system of claim 1 , wherein the switch device has at least a third setting which prevents either one of the first or second current from being directed to either of the first or second welding tools.4. The system of claim 1 , wherein the first welding tool is connected to the system through a wire feeder connected ...

Control device, control method, and control program for articulated robot

The purpose of the present invention is to have the angles of each of the drive shafts of the first articulated drive system infallibly reach the angle of the work completed position, while maintaining the rate of movement and position of the working parts of an articulated robot. If exception conditions are not satisfied, the drive shafts of first and second articulation drive systems are driven individually (S 64 ) on the basis of interpolated points calculated in step 5 (S 5 ). After exception conditions are satisfied (Yes side of S 61 ), until the working parts reach the work completed position (No side of S 12 ), the angle of each of the drive shafts of the first articulated drive system required to vary each of the drive shafts of the first articulated drive system in a linear manner with the angle at the work completed position as a target is calculated (S 8 ), and the angle of each of the drive shafts of the second articulated drive system is calculated on the basis of the position of the working part at the interpolated point calculated in step 5 (S 5 ) and the angle of each of the drive shafts of the first articulated drive system as calculated (S 9 ), and the drive shafts of the first and second articulated drive systems are driven according to said calculation results (S 11 ).

METHOD AND SYSTEM OF USING CONSUMABLE WITH WELD PUDDLE

A system for and a method of controlling filler wire is provided. The system includes a high intensity energy source configured to heat at least one workpiece to create a molten puddle on a surface of the at least one workpiece. A filler wire feeder is configured to feed a filler wire into said molten puddle, and a travel direction controller is configured to advance the high intensity energy source and the filler wire in a travel direction to deposit the filler wire on the at least one workpiece. The system also includes a filler wire controller configured to move the filler wire in at least a first direction during the feeding and advancing of the filler wire. At least the first direction is controlled to obtain a desired shape, profile, height, size, or an admixture of a bead formed by the molten puddle. 1. A method of controlling filler wire , the method comprising:heating at least one workpiece with a high energy heat source to create a molten puddle on a surface of said at least one workpiece;feeding a filler wire into said molten puddle;advancing each of said high energy heat source and said filler wire in a travel direction to deposit said filler wire on said at least one workpiece;moving said filler wire in at least a first direction during said feeding of said filler wire and said advancing of said filler wire where said at least first direction is different from said travel direction; andcontrolling at least said movement of said filler wire in said at least first direction to obtain a desired shape, profile, height, size, or an admixture of a bead formed by said molten puddle.2. The method of claim 1 , wherein said movement of said filler wire in said at least first direction includes at least one of a back and forth motion that is in-line with said travel direction claim 1 , a back and forth motion that is transverse to said travel direction claim 1 , a circular motion claim 1 , and an elliptical motion.3. The method of claim 2 , further comprising: ...

METHOD FOR TEACHING/TESTING A MOTION SEQUENCE OF A WELDING ROBOT, WELDING ROBOT AND CONTROL SYSTEM FOR SAME

The invention relates to a monitoring module (″) for monitoring an electric arc machining process, sail the module comprising a camera (), a photo flash lamp () and a control system () that controls the photo flash lamp () and a control system () that controls the photo flash lamp () in such a way that it illuminates when the camera () records the image. According to the invention, said the components () are arranged in a common housing (). 293014311. Method according to claim 1 , wherein the welding wire ( claim 1 , ) is again moved to the workpiece ( claim 1 , ) or to the length that may be predetermined () after the interruption.32993014311431. Method according to claim 1 , wherein when the welding head () is adjusted claim 1 , the welding wire ( claim 1 , ) is repeatedly moved to and back from the workpiece ( claim 1 , ) claim 1 , i.e. the contour of the workpiece ( claim 1 , ) is sensed claim 1 , as long as the length (l) has not been achieved.49307. Method according to claim 1 , wherein the speed of feeding back the welding wire ( claim 1 , ) is selected as to be always higher than the speed of the forward motion of the manually controlled welding torch ().53493014311. Method according to claim 1 , wherein the current source () limits the amount of power in such a way that a short-circuit does not result in a melting of the welding wire ( claim 1 , ) and the workpiece ( claim 1 , ) claim 1 , but the contacting of both of them is recognized as soon as possible claim 1 , with however the further monitoring claim 1 , open-loop and closed-loop functions for the actual welding process claim 1 , such as the release of short-circuit claim 1 , the wire feed claim 1 , the protective gas supply claim 1 , the cooling circuit claim 1 , etc. of the welding device () remaining deactivated.6291431930131. Method according to claim 1 , wherein the distance between the welding head () and the workpiece ( claim 1 , ) later during the welding process claim 1 , corresponds to that ...

ADAPTABLE ROTATING ARC WELDING METHOD AND SYSTEM

A welding operation is performed utilizing a rotating arc resulting from movement of a welding electrode in a welding torch. Workpiece fit-up is determined as the weld progresses, such as via a camera and image analysis. In the event that fit-up changes, such as by the development of gaps between the workpieces, one or more parameters of the system may be altered, such as the geometry of the electrode movement, the travel speed, the wire feed speed, the weld power applied to the electrode, and so forth. The technique may be automated, such as for accommodating welding via welding robots. 1. A welding method comprising:establishing an arc between a welding electrode and a workpiece;feeding the electrode from a welding torch while cyclically moving the electrode in a desired pattern by a motion control assembly within the welding torch;advancing the welding torch or the workpiece to establish a weld bead; andaltering a geometry of the desired pattern while maintaining the arc and weld bead.2. The welding method of claim 1 , wherein altering the geometry of the desired pattern comprises altering a diameter of a generally circular pattern.3. The welding method of claim 1 , comprising also altering a wire feed speed of the electrode.4. The welding method of claim 1 , comprising also altering a travel speed of the welding torch.5. The welding method of claim 1 , comprising also altering a parameter of weld power applied to the electrode.6. The welding method of claim 1 , comprising detecting a fit-up parameter of the workpiece claim 1 , and wherein the geometry of the desired pattern is altered based upon the detected fit-up.7. The welding method of claim 6 , wherein the fit-up parameter is detected by a detector mounted to the welding torch.8. The welding method of claim 1 , wherein the welding torch is mounted to a welding robot.9. A welding method comprising:establishing an arc between a welding electrode and a workpiece;feeding the electrode from a welding torch while ...

SYSTEMS, METHODS, AND APPARATUSES FOR MONITORING WELD QUALITY

An arc welder including an integrated monitor is disclosed. The monitor is capable of monitoring variables during a welding process and weighting the variables accordingly, quantifying overall quality of a weld, obtaining and using data indicative of a good weld, improving production and quality control for an automated welding process, teaching proper welding techniques, identifying cost savings for a welding process, and deriving optimal welding settings to be used as pre-sets for different welding processes or applications. 117-. (canceled)18. A method of evaluating a plurality of welds performed by an automated electric arc welder under substantially the same conditions and according to substantially the same arc welding process by monitoring the electric arc welder as the welder performs the welds according to the arc welding process by creating actual welding parameters between an advancing wire and a workpiece , said arc welding process controlled by command signals to a power supply of said welder , said method comprising: (a) generating a series of rapidly repeating wave shapes, each wave shape constituting a weld cycle with a cycle time;', '(b) dividing said wave shapes into states;', '(c) measuring a selected weld parameter occurring in one of said states at an interrogation rate over a period of time to obtain a data set for said selected weld parameter;', '(d) for each period of time, calculating a quality value for said selected weld parameter from said data set;', '(e) comparing each quality value to an expected quality value to determine if a difference between said quality value and said expected quality value exceeds a predetermined threshold;', '(f) if said difference exceeds said threshold, weighting said quality value with a magnitude weight based on said difference, and weighting said quality value with a time contribution weight based on a time contribution of said state to its wave shape; and', '(g) using all of said quality values, including ...

WELDER GENERATOR ELECTRODE BASED ENGINE SPEED CONTROL

A welding system includes an engine-driven welder generator that produces welding power. A welding torch receives the welding power and applies it to a stick electrode to initiate and maintain a welding arc. A parameter of the welding power, such as voltage, is monitored, such as to determine whether spikes occur during a short time after arc initiation. Based upon the monitored parameter, the engine speed is controlled. The engine speed may be increased or maintained at an elevated level if the monitored parameter indicates that particular types of electrode are being used, such as XX10 or cellulose electrodes. 1. A welding method comprising:initiating a welding arc between a stick electrode and a workpiece based upon power provided by an engine-driven welder generator;monitoring an electrical parameter of power provided to the stick electrode; andcontrolling engine speed based upon the monitored electrical parameter.2. The welding method of claim 1 , wherein the electrical parameter is voltage of welding power provided to the stick electrode.3. The welding method of claim 2 , wherein monitoring the electrical parameter comprises monitoring the voltage for spikes during a period following initiation of the welding arc.4. The welding method of claim 3 , wherein engine speed is increased or maintained engine speed at an elevated level if a predetermined number of voltage spikes are detected within a predetermined time after initiation of the welding arc.5. The welding method of claim 4 , wherein the engine speed is increased or maintained at the elevated level if at least 5 voltage spikes are detected within the first second following initiation of the welding arc.6. The welding method of claim 5 , wherein voltage spikes are detected that are above approximately 44 volts.7. The welding method of claim 1 , wherein the electrical parameter is monitored to determine a type of stick electrode employed claim 1 , and wherein the engine speed is controlled based upon the ...

METHOD FOR DYNAMIC FEED PRESSURE ADJUSTMENT

The invention relates to devices, systems, and methods for automatic feed adjustment during welding operations using a pressure measuring device and a welding wire knowledge database to adjust tension between at least one pair of wire feed rolls, at least one of which is a drive roll. 1. A process for controlling tension between wire feed rollers on a welding wire comprising the steps of:feeding a wire through at least one pair of rollers, at least one of said pair of rollers being a drive roller, said at least one pair of rollers having a tension therebetween;measuring an observed speed of the wire after it exits from between the pair of rollers;comparing a driven speed of the wire, said driven speed calculated based upon a motor speed and a roller diameter of at least one of the rollers, with the observed speed of the wire as measured by a wire speed sensor as the wire passes the wire speed sensor; andat least periodically measuring said tension between said at least one pair of rollers using a pressure measuring means;communicating said driven speed, said observed speed and said tension to a knowledge database of specific wire parameters to determine whether a mismatch between said driven speed and said observed speed is attributable to tension between said at least one pair of rollers or to other factors; andautomatically adjusting the tension between the pair of rollers if said step of communicating with said knowledge database determines that said tension needs to be increased or decreased.2. The method of whereinsaid pressure measuring means is selected from the group consisting of force summing devices, mechanical pressure gauges, electromechanical pressure sensors, strain gauge transducers, bonded and unbounded strain gauges, sputtered strain gauges, semiconductor strain gauges, bonded discrete silicon strain gauges, diffused diaphragm sensors, sculptured diaphragm sensors, variable capacitance transducers, piezoelectric transducers, piezoresistive sensors, ...

System and method of exporting or using welding sequencer data for external systems

The invention described herein generally pertains to a system and method for collecting one or more welding parameters in real time during creation of one or more welds using a welding sequence. The one or more welding parameters can be associated with a particular welding sequence. Moreover, based on the one or more welding parameters collected, a modeled welding parameter can be generated to increase quality, efficiency, and the like. A collection component collects real time welding parameter data from which a quality manager component creates a modeled welding parameter. The modeled welding parameter can be employed for the welding sequence to monitor or track the welding parameter during a subsequent weld.

SYSTEM AND METHOD OF EXPORTING OR USING WELDING SEQUENCER DATA FOR EXTERNAL SYSTEMS

The invention described herein generally pertains to a system and method for collecting one or more welding parameters or a weld time during creation of one or more welds using a welding sequence. The one or more welding parameters and/or weld time for each welding sequence is utilized to determine an estimation of consumable depletion for a welding work cell and/or a repair/service to perform on equipment within the welding work cell. Furthermore, the weld time and/or welding parameters can be utilized to manage inventory for a plurality of welding work cells within a welding environment. Other embodiments provided track a cost for a performance of a weld with a welding sequence as well as identifying a workpiece to communicate information related to the one or more welds used for assembly. 1. A welder system , comprising:a welding job sequencer component that is configured to identify a welding sequence for a welding work cell, wherein the welding sequence defines at least a parameter and a welding schedule for a first welding procedure to create a first weld on a workpiece and a second welding procedure to create a second weld on the workpiece;the welding job sequencer component is further configured to utilize the welding sequence in the welding work cell to automatically configure welding equipment to perform the first welding procedure and the second welding procedure on the workpiece without intervention from the operator; anda collection component that is configured to track a weld time for at least one of the first weld or the second weld performed with the welding sequence; anda manager component that is configured to ascertain an estimation of consumable depletion based on the weld time for the welding sequence used to perform the first weld or the second weld.2. The welder system of claim 1 , further comprising a weld score component that is configured to evaluate at least one of the first weld or the second weld performed on the workpiece by the ...

SYSTEMS AND METHODS FOR DIAGNOSING SECONDARY WELD ERRORS

A controller for a welding system adapted to determine a value of a weld secondary parameter across a weld secondary component based on a sensed parameter is provided. The controller may also be adapted to compare the determined value to a reference value range and to alert a user to a presence and location of a weld secondary error when the determined value is outside the referenced value range. 1. A controller for a welding system , configured to:determine a value of a weld secondary parameter across a weld secondary component based on a sensed parameter;compare the determined value to a reference value range; andalert a user to a presence and location of a weld secondary error when the determined value is outside the referenced value range.2. The controller of claim 1 , further configured to receive an input from the user regarding a negative weld lead length claim 1 , and to determine the referenced value range based on the negative weld lead length.3. The controller of claim 1 , further configured to receive an input from the user regarding a negative weld lead size claim 1 , and to determine the referenced value range based on the negative weld lead size.4. The controller of claim 1 , further configured to receive an input from the user regarding a positive weld lead length claim 1 , and to determine the referenced value range based on the positive weld lead length.5. The controller of claim 1 , further configured to receive an input from the user regarding a positive weld lead size claim 1 , and to determine the referenced value range based on the positive weld lead size.6. The controller of claim 1 , further configured to receive an input from the user regarding a welding torch manufacturer claim 1 , and to determine the referenced value range based on the welding torch manufacturer.7. The controller of claim 1 , further configured to receive an input from the user regarding a welding torch model number claim 1 , and to determine the referenced value range ...

WIRELESS COMMUNICATION NETWORK FOR CONTROL OF INDUSTRIAL EQUIPMENT IN HARSH ENVIRONMENTS

In certain embodiments, a system includes a master node device. The master node device includes communication circuitry configured to facilitate communication with a welding power supply unit via a long-range communication link, and to facilitate wireless communication with one or more welding-related devices via a short-range wireless communication network. 1. A system , comprising: 'communication circuitry configured to facilitate communication with a welding power supply unit via a long-range communication link, and to facilitate wireless communication with one or more welding-related devices via a short-range wireless communication network.', 'a master node device comprising2. The system of claim 1 , wherein the long-range communication link comprises a wireless communication link having a transmission range of approximately 300 feet or more from the master node device to the welding power supply unit.3. The system of claim 1 , wherein the short-range wireless communication network comprises a wireless communication network having a transmission range of approximately 20-25 feet from the master node device.4. The system of claim 1 , wherein the one or more welding-related devices comprise a welding wire feeder.5. The system of claim 1 , wherein the one or more welding-related devices comprise a welding torch.6. The system of claim 1 , wherein the one or more welding-related devices comprise a welding helmet.7. The system of claim 1 , wherein the one or more welding-related devices comprise a welding pendant.8. The system of claim 1 , wherein the one or more welding-related devices comprise a welding foot pedal.9. The system of claim 1 , wherein a welding-related device of the one or more welding-related devices comprises the master node device.10. The system of claim 1 , wherein the master node device comprises weld cable communication circuitry configured to facilitate welding cable communication with the welding power supply unit via a weld cable.11. The ...

Wireless communication network sensor information for control of industrial equipment in harsh environments

In certain embodiments, a system includes a master node device. The master node device includes communication circuitry configured to facilitate communication with a welding power supply unit via a long-range communication link, and to facilitate wireless communication with one or more welding-related devices via a short-range wireless communication network. The master node device also includes control circuitry configured to receive sensor data from one or more sensors within a physical vicinity of the short-range wireless communication network, and to route the sensor data to final destinations for the one or more sensors.

WELDING WIRE FEED SPEED CONTROL SYSTEM AND METHOD

A welding system is disclosed in which the rate of advancement of wire electrode is determined automatically. The device can include a control circuit that determines the rate of advancement of the wire electrode in response to a signal from the voltage selection device of the welding system. Depending upon the operator selected voltage which is selected via the voltage selection device, the control circuit will determine the appropriate rate of wire electrode advancement and control the advancement mechanism (e.g., electric motor) accordingly. Linking of the voltage level and wire-feed speed controls facilities easy of use for more novice operators and, furthermore, facilitates single-handed adjustment of two operational parameters during a welding process. 1. A welding system , comprising:a power source configured to provide welding power to a welding torch;a wire feeder configured to advance wire electrode into the welding torch at a rate of advancement;a first input control device configured to adjust a setting corresponding to a voltage output level for the power source;a second input control device configured to adjust a setting corresponding to the rate of advancement, wherein the second input control device comprises a setting that corresponds to an automatic adjustment mode for wire feed speed adjustment; and receiving signals from the first input control device corresponding to a selected setting of the first input control device;', 'receiving signals from the second input control device corresponding to a selected setting of the second input control device;', 'setting the voltage output level of the power source corresponding to the selected setting of the first input control device;', 'automatically determining and setting the rate of advancement based on the selected setting of the first input control device when the selected setting of the second input control device corresponds to the automatic adjustment mode; and', 'setting the rate of advancement ...

WELDING SYSTEM WITH MULTIPLE USER INTERFACE MODULES

A welding system user interface module includes a front panel comprising a first input device and a first display screen. The welding system user interface module also includes circuitry comprising a memory storing machine-readable instructions, a processor for executing the machine-readable instructions, and communication circuitry configured to receive UI data from the first input device or a second input device of a remote welding system user interface module, and to broadcast synchronized data to the first display screen and a second display screen of the remote welding system user interface module. 1. A welding system user interface module , comprising:a front panel comprising a first input device and a first display screen; andcircuitry comprising a memory storing machine-readable instructions, a processor for executing the machine-readable instructions, and communication circuitry configured to receive UI data from the first input device or a second input device of a remote welding system user interface module, and to broadcast synchronized data to the first display screen and a second display screen of the remote welding system user interface module.2. The welding system user interface module of claim 1 , wherein the machine-readable instructions comprise instructions for reconciling conflicts between UI data received from the first and second input devices.3. The welding system user interface module of claim 2 , wherein the synchronized data comprises a broadcast token claim 2 , and the UI data comprise a response token claim 2 , wherein reconciliation of the conflicts between the UI data is based at least in part on the broadcast token and the response token.4. The welding system of claim 3 , wherein the response token comprises prioritization information.5. The welding system user interface module of claim 1 , wherein the communication circuitry is configured to communicate with control circuitry internal to a welding system component on which the welding ...

WELDING SYSTEMS AND DEVICES HAVING A CONFIGURABLE PERSONAL COMPUTER USER INTERFACE

A welding system includes a welding power source having a user interface disposed thereon and a weld controller disposed therein and being adapted to generate a welding power output for use in a welding operation. The welding system also includes a personal computer having control circuitry disposed therein and being removably interfaced with the welding power source via a docking mechanism. When the personal computer is docked within the docking mechanism, the personal computer is enabled for receiving operator input, and the control circuitry communicates with the weld controller to coordinate control of a welding operation in accordance with the operator input. 1. A welding system , comprising:a welding power source comprising a user interface and a weld controller disposed therein and being configured to generate a welding power output for use in a welding operation; anda computer comprising control circuitry disposed therein and being removably interfaced with the welding power source via a docking mechanism, wherein when the computer is docked within the docking mechanism, the computer is enabled for receiving operator input, and the control circuitry communicates with the weld controller to coordinate control of a welding operation in accordance with the operator input.2. The system of claim 1 , comprising a welding torch coupled to the welding power source to receive welding current from the welding power supply during operation for establishing and maintaining a welding arc.3. The system of claim 1 , wherein the personal computer comprises a touch screen interface for receiving the operator input.4. The system of claim 1 , wherein the welding power source comprises a universal serial bus (USB) to RS485 converter.5. The system of claim 1 , wherein the welding power source comprises a universal serial bus (USB) hub and the computer comprises a USB port claim 1 , and the USB port of the computer is configured to bidirectionally exchange data with the USB hub ...

Method and Apparatus For Welding With CV Control

A method and apparatus for welding is disclosed. The output is preferably a cyclical CV MIG output, and each cycle is divided into segments. An output parameter is sampled a plurality of times within one or more of the segments. The CV output is controlled within the at least one segment in response to the sampling. The parameter is output power, a resistance of the load, an output current, an output voltage, or functions thereof in various embodiments. The control loop is preferably a PI or PID loop. The loop may be applied only within a window. The set point may be taught or fixed. The system can be used to weld with a controlled arc length. 132-. (canceled)33. A system for providing welding power , comprising:a welding power supply having a CV output, wherein the output has an output voltage, and is a series of cycles, each cycle having at least two segments;a feedback module connected to the output, having an output parameter feedback signal;a controller, including a sampling module, connected to the feedback module, and an output control signal responsive to the sampling module.34. The system for providing welding power of claim 33 , wherein the feedback signal is indicative of an output power.35. The system for providing welding power of claim 33 , wherein the feedback signal is indicative of a resistance of the load.36. The system for providing welding power of claim 33 , wherein the feedback signal is indicative of the output voltage.37. The system for providing welding power of claim 33 , wherein the controller further comprises an error module connected to the sampling module and having a desired voltage input claim 33 , and wherein the output control signal is responsive to the error module.38. The system for providing welding power of claim 37 , further comprising a gain module connected to the error module claim 37 , and wherein the output control signal is responsive to the gain module.39. The system for providing welding power of claim 38 , further ...

WELD BANK DATA STRUCTURES FOR WELDING APPLICATIONS

A data structure for weld programs associates configuration data for a welding system with a plurality of weld programs and weld sequence data. The data structure allows the welding system to be configured for a particular part, operator, or stage in a welding process, and to be easily reconfigured when the part, operator, or stage changes, providing improved efficiency and flexibility in operation. 2. The memory as recited in claim 1 , wherein the weld system configuration selection includes data defining at least one of a semi-automatic claim 1 , automatic claim 1 , and robotic welding configuration for the computerized welding system.3. The memory as recited in claim 1 , wherein the welding process program selection includes data for defining at least one of a metal inert gas claim 1 , pulsed metal inert gas claim 1 , short circuit metal inert gas and a regulated metal deposition process performed by the computerized welding system.4. The memory as recited in claim 1 , wherein the welding process program selection includes data defining at least one of a wire type claim 1 , a wire alloy claim 1 , a material claim 1 , a material thickness claim 1 , and a gas.5. The memory as recited in claim 1 , wherein the weld sequence includes data for defining at least one of a pre-flow period claim 1 , a run-in time claim 1 , an arc start claim 1 , a weld start claim 1 , a weld ramp claim 1 , a weld claim 1 , a crater fill claim 1 , an arc stop claim 1 , a burnback claim 1 , and a post-flow sequence.6. The memory as recited in claim 1 , wherein the welding process command parameter comprises at least one of a voltage claim 1 , a wire feed speed claim 1 , and a trim command level for the computerized welding system.7. The memory as recited in claim 1 , wherein the weld configuration selection includes an operator configuration.8. The memory as recited in claim 6 , wherein the operator configuration comprises at least one of a trigger hold selection and a dual-schedule ...

WELDER HAVING FEEDBACK CONTROL

A method and apparatus for improving the flow control of a shielding gas in a welding unit is described which uses feedback from at least one of a mass flow controller, a pressure sensor and a valve position sensor to regulate shielding gas flow through a controller. 1. A welding system comprising:a shielding gas input;a shielding gas output coupled to a welding gun having a trigger; anda feedback control system for at least said shielding gas comprising:a mass flow sensor for measuring flow between said shielding gas input and said shielding gas output; anda valve for regulating flow between said shielding gas input and said shielding gas output.2. The welding system of wherein said valve further comprises a valve position sensor for communicating a valve position to a controller based upon valve position output from a valve position sensor.3. The welding system of whereinsaid controller interactively controls said valve position.4. The welding system of whereinsaid controller includes an alarm for indicating when feedback from said valve position is different than said valve position output.5. The welding system of whereinsaid feedback control system further comprises a pressure sensor for determining the pressure of the flow and communicating said pressure to said controller for adaptive preflow control.6. The welding system of whereinsaid feedback control system analyzes signals from at least two of said flow sensor, said pressure sensor, and said valve position sensor and adjusts said shielding gas output based on said at least two signals.7. The welding system of whereinsaid feedback control system analyzes signals from all of said flow sensor, said pressure sensor, and said valve position sensor and adjusts said shielding gas output based on said three signals.8. A method of providing a targeted shielding gas flow rate to a weld site claim 6 , said weld site comprising a gas input claim 6 , an electrical input claim 6 , a wire feeder claim 6 , a welding gun ...

Electrode negative pulse welding system and method

A welding system includes a power source configured to generate power and deliver the power to a welding torch. The power is provided in accordance with an electrode negative pulse welding regime that includes a cyclic peak, followed by a stabilization phase, then a return to a background level. The stabilization phase has a generally parabolic current shape, and is performed in a current-closed loop manner until a transition point, where control becomes voltage-closed loop until the background level is reached. Resulting weld performance is improved, with a globular-like transfer mode, reduced shorts and enhanced arc stability.

TWIN LASER CAMERA ASSEMBLY

A twin laser camera unitary assembly for a robot processing tool is disclosed. The assembly has a housing having a front wall defining an upright U-shaped channel into which a tubular portion of the tool is laterally insertable. A mounting support attaches the housing relative to the tool in operative position. Twin laser range finders are respectively mounted in the housing on opposite sides of the U-shaped channel in a symmetrical in-line arrangement with respect to the tool. A controller mounted in the housing is configured to receive robot control signals, operate laser projectors and process image signals produced by imagers of the laser range finders so that joint and bead position and geometry signals are produced in a robot reference frame. The assembly is designed and protected for use in industrial processes such as robotic laser and arc welding and sealant dispensing. 1. A twin laser camera unitary assembly for a robot processing tool , comprising:a housing having a front wall defining an upright opening into which a portion of the robot processing tool is laterally insertable;a mounting support for attachment of the housing relative to the robot processing tool in an operative position where the portion of the robot processing tool extends in the upright opening and a tool center point thereof projects under the housing;first and second laser range finders respectively mounted in the housing on opposite sides of the upright opening in a symmetrical in-line arrangement with respect to the tool center point and a direction of displacement thereof when in said operative position, the laser range finders respectively having laser projectors for projecting laser beams crosswise to the direction of displacement of the robot processing tool at similar but opposite look-ahead and look-back distances from the tool center point of the robot processing tool, and corresponding imagers with fields of view respectively over target areas at the look-ahead and look-back ...

BUTT JOINT WELDING APPARATUS AND METHOD THEREFOR

A butt joint welding apparatus and method are provided. The apparatus comprises a traveling device part to convey a welding tip vertically or slantingly to the bevel of upper and lower parent metal. A welding torch with a welding tip is mounted in the traveling device part. A copper shoe device is mounted in the traveling device part and positioned in the direction of welding by the welding tip for ejecting a gas to the molten metal in the direction reverse to the welding direction. A control unit controls the welding condition according to the positions of the bevels of the butt joint welding. The control unit enables the traverse device part to be conveyed along a particular weaving pattern, and controls the welding current and voltage, the wire supply speed, the traverse speed, and the stopping time at the nodal points in the moving interval between adjacent nodal points. 1. A horizontal butt joint welding apparatus comprising:a traveling device part to convey a welding tip vertically or slantingly to bevels of an upper parent metal and a lower parent metal;a welding torch comprising a welding tip and mounted in the traveling device part;a copper shoe device mounted in the traveling device part and located in a welding direction by the welding tip to inject a gas to a molten metal in a reverse direction to the welding direction;a control unit to control welding conditions according to positions of the bevels to maintain a fixed deposition amount on the upper parent metal not to form a macro cross section on which a welded side is not formed; andwherein the control unit enables the traveling device part to be conveyed along a particular weaving pattern including weaving traveling having a plurality of nodal points and diagonal traveling and controls welding current and voltage, wire supply speed, traveling speed, and stopping time at the nodal points in moving intervals between the nodal points to carry out deposited welding of the bevels.2. The horizontal butt ...

ARC WELDING CONTROL METHOD

There is provided an arc welding control method of alternating feeding of a welding wire between forward feeding and reverse feeding periodically according to a feeding rate pattern constituted of a forward feeding amplitude, a reverse feeding amplitude, a forward feeding period and a reverse feeding period, stored in correspondence to an average feeding rate setting value, and generating short-circuiting periods and arc periods to perform welding. An average feeding rate of the welding wire is detected, and at least one of the forward feeding amplitude, the reverse feeding amplitude, the forward feeding period or the reverse feeding period is changed so that the detected average feeding rate equals the average feeding rate setting value, thereby automatically correcting the feeding rate pattern. 1. An arc welding control method of alternating feeding of a welding wire between forward feeding and reverse feeding periodically according to a feeding rate pattern constituted of a forward feeding amplitude , a reverse feeding amplitude , a forward feeding period and a reverse feeding period , stored in correspondence to an average feeding rate setting value , and generating short-circuiting periods and arc periods to perform welding , the arc welding control method comprising:detecting an average feeding rate of the welding wire, and changing at least one of the forward feeding amplitude, the reverse feeding amplitude, the forward feeding period or the reverse feeding period so that the detected average feeding rate equals the average feeding rate setting value, thereby automatically correcting the feeding rate pattern.2. The arc welding control method according to claim 1 , further comprising storing the automatically-corrected feeding rate pattern upon completion of the welding.3. The arc welding control method according to claim 1 , wherein individual changeable ranges are provided in the forward feeding amplitude claim 1 , the reverse feeding amplitude claim 1 , the ...

WELDING HELMET WITH HEADS UP DISPLAY AND VOICE COMMAND

A welding system and welding helmet is provided, where the welding helmet is capable of providing an image representative of information from an associated welding operation where the image appears as a head-up display (HUD) in the welding helmet. The helmet displays the information at a focal point which coincides with a working distance of a welding operation so that a user need not change his/her focus during a welding operation. The helmet also comprises a microphone to allow for audio instruction to be provided to a welding power supply to change settings. 1. A welding helmet , comprising:a main body;a visual display which is coupled to the main body, where the visual display allows a welding operation to be viewed with the visual display;an information generating mechanism which generates an image to be displayed on the visual display such that the image is viewable during the welding operation;a communication device coupled to the information generating mechanism which receives information to be displayed in the image; anda microphone coupled to the communication device, where the microphone is positioned such that the microphone receives audio instructions from a user of the welding helmet when wearing the welding helmet,wherein the communication device communicates the audio instructions received from the microphone to a welding power supply.2. The welding helmet of claim 1 , further comprising a speaker in the welding helmet which is coupled to the communication device where the speaker provides audio signals to the user.3. The welding helmet of claim 1 , further comprising a switch which activates the microphone to allow the communication device to receive signals from the microphone.4. The welding helmet of claim 1 , wherein the information generating mechanism generates visual confirmation of audio instructions received by the microphone.5. The welding helmet of claim 1 , wherein the welding helmet further comprises a battery and a charging connector ...

METHODS AND APPARATUS TO SWITCH A WELD POWER OUTPUT

Methods and apparatus to communicate via a weld cable are disclosed. An example welding accessory includes a first port to receive input power via a first weld cable, a power converter to convert the input power to output power, a second port to output the input power via a second weld cable, and one or more output switches to selectively divert the input power from the power converter to the second port. 1. A welding accessory , comprising:a first port to receive input power via a first weld cable;a power converter to convert the input power to output power;a second port to output the input power via a second weld cable; andone or more output switches to selectively divert the input power from the power converter to the second port.2. The welding accessory as defined in claim 1 , further comprising a communications detector in communication with the second weld cable claim 1 , the communications detector to claim 1 , in response to identifying a communication occurring on the second weld cable claim 1 , cause the one or more output switches to divert the input power to the second port in response to the communication.3. The welding accessory as defined in claim 1 , further comprising a current watchdog to claim 1 , in response to identifying that the second weld cable has not conducted welding current for at least a threshold time period claim 1 , cause the one or more output switches to direct the input power to the power converter.4. The welding accessory as defined in claim 1 , further comprising a third port to receive a temperature signal claim 1 , a temperature monitor to convert the temperature signal to temperature information claim 1 , and a transceiver to transmit a communication including temperature information.5. The welding accessory as defined in claim 1 , further comprising a third port to receive a temperature signal and a temperature monitor to convert the temperature signal to a temperature of a workpiece claim 1 , the temperature monitor to: ...

WELDING CONDITION GENERATING METHOD IN FLAT POSITION WELDING

A welding condition generating method in flat position welding is a method for determining welding conditions for welding in a single V groove, a single bevel groove, or a fillet groove in a flat position using a welding robot. The method includes preparing conditions A and B, each including a plurality of different parameters used in calculation for determining the welding conditions; and generating the welding conditions by combining parameters included in the conditions A and B. The condition A includes at least one of the following parameters: a joint shape, a groove shape, a groove angle, a gap width, and the presence or absence of backing. The condition B includes at least one of the following parameters: a welding gas type, a welding wire diameter, a welding wire type, a welding wire extension length, a welding source type, a power source characteristic, and a torch type. 1. A welding condition generating method for determining welding conditions for welding in a single V groove , a single bevel groove , or a fillet groove in a flat position using a welding robot , the welding condition generating method comprising:preparing a condition A and a condition B, each including a plurality of different parameters used in calculation for determining the welding conditions; andgenerating the welding conditions by combining at least one of the parameters included in the condition A with at least one of the parameters included in the condition B,wherein the condition A includes a type of joint and groove shape, and geometrical parameters of a workpiece to be subjected to welding and a groove corresponding to the type; andthe condition B includes parameters related to welding specifications.2. The welding condition generating method according to claim 1 , wherein the condition A includes at least one of the following parameters: a joint shape claim 1 , a groove shape claim 1 , a groove angle claim 1 , a gap width claim 1 , and the presence or absence of backing.3. The ...

DEVICES AND METHODS FOR ANALYZING SPATTER GENERATING EVENTS

A method for monitoring a spatter generating event during a welding application. The method includes capturing data that corresponds to a welding current of the welding application. The method also includes detecting parameters associated with a short circuit from the captured data. The method includes analyzing the detected parameters to monitor the spatter generating event during the welding application. 1. A system comprising:a welding power supply configured to provide a welding power output for use in a welding application; anda weld monitoring system configured to capture data relating to the welding application, to detect a parameter relating to a short circuit from the captured data, and to analyze the parameter relating to the short circuit to monitor a spatter generating event during the welding application.2. The system of claim 1 , wherein the parameter relating to the short circuit comprises timing of the short circuit.3. The system of claim 1 , wherein the parameter relating to the short circuit comprises a duration of the short circuit.4. The system of claim 1 , wherein the parameter relating to the short circuit comprises an arc voltage.5. The system of claim 1 , wherein the parameter relating to the short circuit comprises a short circuit current.6. The system of claim 1 , wherein the weld monitoring system is configured to determine an occurrence of spatter generating event by determining whether the parameter relating to the short circuit is greater than a threshold.7. The system of claim 6 , wherein the threshold is a function of voltage.8. The system of claim 6 , wherein the threshold is a function of current.9. The system of claim 1 , wherein the weld monitoring system is configured to communicate an occurrence of the spatter generating event.10. The system of claim 9 , wherein the weld monitoring system is configured to communicate the occurrence of the spatter generating event in substantially real time.11. The system of claim 9 , wherein the ...

Systems and methods for use in welding pipe segments of a pipeline

A system for welding two pipes includes a first pipe clamp, a second pipe clamp, a weld torch, an inspection detector, a motor, one or more processors, and a grinder. The weld torch is configured to create a weld joint between the pipes at an interface region between the pipes. The inspection detector is configured to emit an inspection beam of radiation. The motor is operatively associated with the inspection detector to direct the inspection beam of radiation along the weld joint between the pipes. The one or more processors are operatively associated with the inspection detector to determine a profile of the weld joint between the pipes. The grinder is configured to grind at least a portion of the weld joint between the pipes based on the profile of the weld joint between the pipes.

AUGMENTED VISION SYSTEM WITH ACTIVE WELDER GUIDANCE

Welding headwear comprises a display operable to present images for viewing by a wearer of the welding headwear, and comprises circuitry operable to determine an identifier associated with a workpiece, retrieve, from memory, welding work instructions associated with the identifier, and generate the images for presentation on the display based on said work instructions. 1. A system comprising: a display operable to present images for viewing by a wearer of said welding headwear; and', determine an identifier associated with a workpiece;', 'retrieve, from memory, welding work instructions associated with said identifier; and', 'generate said images for presentation on said display based on said work instructions., 'circuitry operable to], 'welding headwear comprising2. The system of claim 1 , wherein said determination of said identifier comprises:detection, through an image processing algorithm implemented by said circuitry, markers on one or both of said workpiece and features of said workpiece; andretrieval of said identifier from memory based on said one or both of said detected markers features.3. The system of claim 1 , wherein said circuitry is operable to:determine, during a manual welding operation, a welding parameter for a welding torch;generate a graphical representation of said welding parameter; andinclude said graphical representation of said welding parameter in said images.4. The system of claim 1 , wherein said circuitry is operable to:determine an output of a welding power source;generate a graphical representation of said output of said welding power source; andinclude said graphical representation of said output of said welding power source in said images.5. The system of claim 1 , wherein:said work instructions comprise one or more images illustrating a sequence of welds to be performed on said workpiece; andsaid one or more images illustrating said sequence of welds are included in said images generated for presentation on said display.6. The ...

DEVICE AND METHOD FOR MEASURING THE OXYGEN CONTENT IN WELDING PROCESSES

The invention relates to a device for measuring the oxygen content in welding processes, in particular shielded arc welding, the device having at least one sensor element for sensing the oxygen content of a shielding atmosphere. With the aim of providing a device for measuring the oxygen content in welding processes that provides stable measured values for the residual oxygen content even at very high temperatures of the welding process and is ready to use after a very short time, it is envisaged to design the sensor element as an optical oxygen sensor. 1. A device for measuring the oxygen content in welding processes , in particular shielded arc welding , the device having at least one sensor element for sensing the oxygen content of a shielding atmosphere , characterized in that the sensor element is designed as an optical oxygen sensor.2. The device as claimed in claim 1 , the optical oxygen sensor having a fluorescing medium claim 1 , which can be brought into contact with the shielding atmosphere and is designed for emitting fluorescent light claim 1 , the intensity of the emitted fluorescent light being dependent on the oxygen partial pressure in the shielding atmosphere.3. The device as claimed in claim 2 , the optical oxygen sensor having at least one device for optically exciting the fluorescing medium and at least one optical detector for sensing electromagnetic radiation that is given off by the fluorescing medium as a result of a deactivation process.4. The device as claimed in claim 3 , the device for exciting the fluorescing medium being designed to give off an excitation pulse to the fluorescing medium at previously determinable time intervals.5. The device as claimed in claim 3 , the device having an evaluation unit claim 3 , which is connected to the optical detector and is designed for determining the intensity or the decay behavior of the fluorescent radiation of the fluorescing medium.6. The device as claimed in claim 5 , the evaluation unit ...

SYSTEM AND METHOD FOR CONTROLLING WELDING MACHINE

A system () and method () includes a welding machine () having a voltage setting, On/Off power setting, power outlet setting, welding process setting, and welding lead setting and a communication device (), a computing device () including a processor programmed to enter data for an adjustment setting of at least one of the voltage setting, On/Off power setting, power outlet setting, welding process setting, and welding lead setting and communicate the adjustment setting to the welding machine (), and a computer server () to receive the adjustment setting from the computing device () and to send the adjustment setting to the communication device (), the processor of the communication device () adjusting the at least one of the voltage setting, On/Off power setting, power outlet setting, welding process setting, and welding lead setting. 11012. A system () for controlling a welding machine () comprising:{'b': 12', '15', '12, 'a welding machine () having a voltage setting, On/Off power setting, power outlet setting, welding process setting, and welding lead setting and a communication device () including a first processor in communication with the welding machine ();'}{'b': 14', '32', '12', '12', '12', '32', '12', '12, 'a remote user computing device () including a second processor and a user interface () programmed to allow a remote user of the welding machine () located remotely from the welding machine () to enter data for an adjustment setting of at least one of the voltage setting, On/Off power setting, power outlet setting, welding process setting, and welding lead setting of the welding machine () in the user interface () and communicate the adjustment setting to the welding machine () setting to allow the remote user to control the welding machine (); and'}{'b': 16', '100', '14', '15', '12', '15', '12, 'a computer server (, ) including a third processor programmed to receive the adjustment setting from the remote user computing device () and to send the ...

SYSTEMS AND METHODS FOR A WELD TRAINING SYSTEM

Systems and methods for a weld training system are disclosed. An example weld training system includes: a mobile device configured to be attached to a welding accessory using a mount, the mobile device comprising one or more sensors, wherein the mobile device is configured to: gather, via the one or more sensors of the mobile device, information indicative of dynamic position or orientation of the mobile device during a welding procedure; and display, via a display of the mobile device, a welding environment based on the information. 1. A weld training system , comprising: gather, via the one or more sensors of the mobile device, information indicative of dynamic position or orientation of the mobile device during a welding procedure; and', 'display, via a display of the mobile device, a welding environment based on the information., 'a mobile device configured to be attached to a welding accessory using a mount, the mobile device comprising one or more sensors, wherein the mobile device is configured to2. The weld training system of claim 1 , further comprising a welding torch claim 1 , the mobile device configured to be communicatively coupled to a welding torch.3. The weld training system of claim 2 , wherein the welding torch is configured to perform a simulated welding procedure on a simulated weld joint on a simulated work surface claim 2 , and wherein the mobile device is configured to display a simulated welding environment based at least in part on the information.4. The weld training system of claim 2 , wherein the welding torch is configured to perform an actual welding procedure on an actual weld joint with a live arc claim 2 , and wherein the mobile device is configured to display an augmented welding environment based at least in part on the information.5. The weld training system of claim 4 , wherein the display of the augmented welding environment comprises a live video of actual objects used in the actual welding procedure with one or more virtual ...

ARC-WELDING POWER SUPPLY

There is provided an arc welding power supply. An output control unit outputs welding voltage and current in correspondence to each of a short-circuiting period and an arc period. A feeding control unit controls a feeding rate of a welding wire. A short-circuit forcibly generating period is provided between forward feeding acceleration and deceleration periods. In the short-circuit forcibly generating period, the feeding control unit increases the feeding rate with a change rate larger than a change rate during the forward feeding acceleration period and maintains a predetermined forward feeding peak value when the feeding rate reaches the peak value. 1. An arc welding power supply comprising:an output control unit configured to output a welding voltage and a welding current in correspondence to each of a short-circuiting period and an arc period; anda feeding control unit configured to increase a feeding rate of a welding wire in a forward feeding direction during a forward feeding acceleration period, to reduce the feeding rate in the forward feeding direction during a forward feeding deceleration period, to increase the feeding rate in a reverse feeding direction during a reverse feeding acceleration period, and to reduce the feeding rate in the reverse feeding direction during a reverse feeding deceleration period,wherein a short-circuit forcibly generating period is provided between the forward feeding acceleration period and the forward feeding deceleration period, and, during the short-circuit forcibly generating period, the feeding control unit increases the feeding rate with a change rate larger than a change rate during the forward feeding acceleration period and maintains a predetermined forward feeding peak value when the feeding rate reaches the peak value.2. The arc welding power supply according to claim 1 , wherein during the reverse feeding acceleration period claim 1 , the feeding control unit increases the feeding rate with a change rate larger ...

CONTACT TIP CONTACT ARRANGEMENT FOR METAL WELDING

A contact tip assembly having an electric contact unit containing a contact tip with an electric energy source, where the electric contact unit is positioned at a distance away from the outlet opening of a guide. 1. A contact tip assembly , comprising:a guide having a longitudinal center axis, a first end, and an opposite second end, and a center bore extending and running along the longitudinal center axis of the guide from its first end to its second end;an electrically insulating lining inside of the center bore and extending at least from the first end to the second end of the guide; andan electric contact unit containing a contact tip in electric contact with an electric energy source, the electric contact unit arranged to contact a metal wire with the contact tip past the second end of the guide.2. The contact tip assembly of claim 1 , further comprising a wire pressing assembly for pressing the metal wire into contact with the contact tip of the electric contact element.3. The contact tip assembly of claim 1 , further comprising a contact element pressing assembly for pressing the contact tip of the electric contact element onto the metal wire.4. The contact tip assembly of claim 1 , further comprising a wire pressing assembly and a contact element pressing assembly.5. The contact tip assembly of claim 1 , where the electrically insulating lining:comprises a guide channel having an inlet opening at the first end and an outlet opening at the second end and running through the electrically insulating lining along the longitudinal center axis, andguides a metal wire being passed through the linear cylindrical guide channel from the inlet opening towards and further out of the outlet opening;6. The contact tip assembly of claim 1 , wherein the electric contact unit is positioned at a distance away from the outlet opening.7. The contact tip assembly of claim 1 , further comprising a bottom opening in the bottom of the guide.8. The contact tip assembly of claim 7 , ...

CONTROL HEAD AND MAGNETIC HOLDER FOR AUTOMATIC WELDING

Double magnetic coupling for two welding heads that work parallel and independent at the front and at the back, (N) and (S), in paramagnetic and diamagnetic materials. 1) A system for welding , comprising:a control head and magnetic holder, comprising:an outer side, comprising: a first magnet, a torch, a first gas duct, a first pipeline for cooling, an external mechanical support, means for welding control, and a first gas diffuser; andan inner side, comprising: a second magnet, a second gas diffuser, a second gas duct, a second pipeline for cooling, and means for translation; andwherein said outer and inner sides are magnetically coupled.2) The system of claim 1 , wherein the outer side comprises means to control the displacement of the first magnet.3) The system of claim 2 , wherein the outer side comprises means for visual inspection.4) The system of claim 2 , wherein the inner side comprises means for translation.5) The system of claim 2 , wherein the torch is selected from the group of welding instruments consisting of tungsten electrodes claim 2 , MIG claim 2 , laser claim 2 , plasma and hybrid.6) The system of claim 3 , wherein the inner side comprises means for translation.7) The system of wherein plates to be welded are placed between the outer and inner sides of the control head.8) The system of claim 2 , wherein the inner side comprises means to control the displacement of the second magnet.9) The system of claim 1 , wherein the inner side comprises means to control the displacement of the second magnet.10) The system of claim 1 , wherein the inner side comprises means for translation.11) A system for welding claim 1 , comprising:a control head and magnetic holder, comprising:an outer side, comprising: a first magnet, a first torch, a first gas duct, a first pipeline for cooling, an external mechanical support, means for welding control, and a first gas diffuser; andan inner side, comprising: a second magnet, a second torch, a second gas diffuser, a ...

WELDING STATE DETERMINATION SYSTEM AND WELDING STATE DETERMINATION METHOD

This welding state determination system acquires, for each weaving cycle, a characteristic amount that pertains to a physical quantity that changes according to the cycle of a weaving operation. A degree of abnormality is calculated based on an observation value that is the characteristic amount acquired in one cycle, and the average and standard deviation of a plurality of past values that are the characteristic amounts acquired prior to the one cycle. A welding state is determined based on the calculated degree of abnormality. 1. A welding state determination system that determines a welding state in arc welding by a weaving operation in which a welding torch is oscillated in cycles , the welding state determination system comprising:an acquisition unit configured to acquire, for each cycle, a characteristic amount that pertains to a physical quantity that changes according to the cycle of the weaving operation;a calculation unit configured to calculate a degree of abnormality based on an observation value that is the characteristic amount acquired in one cycle by the acquisition unit and an average and standard deviation of a plurality of past values that are the characteristic amounts acquired prior to the one cycle by the acquisition unit; anda determination unit configured to determine the welding state based on the degree of abnormality calculated by the calculation unit.2. The welding state determination system according to claim 1 , wherein:the calculation unit is configured to calculate the degree of abnormality for each cycle; andthe welding state determination system further includes an exclusion unit configured to exclude the characteristic amounts used as the observation value in the calculation of the degree of abnormality in the previous cycles from the plurality of past values when the degree of abnormality calculated in cycles previous to the one cycle is greater than a predetermined reference value.3. The welding state determination system ...

SYSTEM AND METHOD OF COMMUNICATING IN A WELDING SYSTEM OVER WELDING POWER CABLES

Systems and methods of the present invention are directed to welding systems having a welding power supply and wire feeder, where the power supply and wire feeder communicate over the welding power cables. In exemplary embodiments, the wire feeder communicates with the power supply over the welding cables using current draw pulses which are generated and recognized by the power supply. Similarly, the power supply generates voltage pulses which are transmitted over the welding power cables and recognized by the wire feeder. 1a welding power source comprising a controller having a first receiver and a first transmitter;a wire feeder comprising a communication circuit having a second receiver, a second transmitter, and a current sink circuit having a current shunt regulator and switches; andat least one welding power cable coupled to each of the welding power source and the wire feeder and configured to carry a welding power from the welding power source to the wire feeder during a welding operation;wherein the wire feeder is configured to communicate with the welding power source over the at least one welding power cable by generating a current draw signal, via at least the current sink circuit of the wire feeder, which is detected by at least the first receiver of the welding power source via current sensing;wherein the welding power source is configured to communicate with the wire feeder over the at least one welding power cable by generating a voltage pulse signal, via at least the first transmitter of the welding power source, which is detected by at least the second receiver of the wire feeder via voltage sensing;wherein the current draw signal comprises a plurality of current draw pulses generated at the wire feeder and the voltage pulse signal comprises a plurality of voltage pulses generated at the welding power source.. A welding system, comprising: The present application is a continuation of U.S. patent application Ser. No. 15/294,653, filed on Oct. 14, ...

SENSOR DEVICE FOR WELDING

A gas, which flows between a welding device and work pieces while the work pieces are welded together, has large influence on the welding. A sensor device includes a sensor unit and a container that includes a housing case (i.e., housing portion) and a shielding member (i.e., shielding portion). The shielding member is attached to the housing case, and shields radiation heat directed toward the lower surface of the housing case among radiation heat generated while the work pieces W are welded together. The shielding member is inclined with respect to a flow direction of a gas passing through an outlet port for detection of a second gas flow channel so that the gas discharged from the outlet port for detection is blown to the shielding member and thus flows to a side opposite to the side where the work pieces W are to be welded together. 1. A sensor device for welding , comprising at least:a sensor unit configured to measure states of work pieces to be welded together or a distance to the work pieces; anda container including a housing portion and a shielding portion, the housing portion being adapted to house the sensor unit and having formed therein a gas flow channel that passes a gas, and the shielding portion being adapted to shield radiation heat directed toward the housing portion among radiation heat generated while the work pieces are welded together,wherein:the shielding portion is inclined with respect to a flow direction of a gas passing through an outlet port of the gas flow channel such that the gas discharged from the outlet port is blown to the shielding portion and thus flows to a side opposite to the side where the work pieces are to be welded together.2. The sensor device for welding according to claim 1 ,wherein:the sensor unit includes at least a detection unit configured to detect as a detection light beam a light beam from surfaces of work pieces to be welded together, a case body adapted to house the sensor unit as the housing portion, the ...

Hybrid Hot-Wire And Arc Welding Method And System Using Offset Positioning

A method and system to weld or join coated workpieces using an arc welding operation and at least one hot wire, resistance heated wire. Each of the arc welding and hot wire operation are directed to the same puddle. However, the arc welding operation is offset out of the joint from the hot wire operation, where the hot wire is directed into the joint. 1. A welding system , comprising:an arc generating power supply which provides an arc generation signal to an electrode to generate an arc between said electrode and at least one workpiece so as to create a molten puddle on said at least one workpiece, where said arc generation signal comprises a plurality of current pulses;a hot wire power supply which generates a heating signal to heat at least one consumable such that said consumable melts in said molten puddle when said consumable is in contact with said molten puddle, where said heating signal comprises a plurality of heating current pulses; anda controller which synchronizes both of said arc generation signal and said heating signal such that a constant phase angle is maintained between said current pulses of said arc generation signal and said heating current pulses,wherein each of said electrode and said consumable are moved in a travel direction relative to said at least one workpiece, and where said electrode is offset from consumable in a direction normal to said travel direction; andwherein at least one of said hot wire power supply and controller monitors a feedback related to said heating signal and compares said feedback to an arc generation threshold and said hot wire power supply turns off said heating signal when said feedback reaches said arc generation threshold level.2. The system of claim 1 , wherein said phase angle is in the range of 340 to 20 degrees.3. The system of claim 1 , wherein said electrode is offset from said consumable by a distance in the range of 2 to 5 mm.4. The system of claim 1 , wherein a ratio of heat input into said puddle ...

WELDING POWER SOURCE, WELDING SYSTEM, WELDING POWER SOURCE CONTROL METHOD, AND PROGRAM

A welding power source is configured to supply a welding current to a wire as a consumable electrode. The welding power source includes a controller configured to change the welding current based on a position of a distal end of the wire a distance from which to a surface of a base metal varies periodically, in a case where the distal end of the wire is fed toward the base metal with periodical switching between a forward feeding period and a reverse feeding period. 1. A welding power source configured to supply a welding current to a wire as a consumable electrode , the welding power source comprising:a controller configured to change the welding current based on a position of a distal end of the wire a distance from which to a surface of a base metal varies periodically, in a case where the distal end of the wire is fed toward the base metal with periodical switching between a forward feeding period and a reverse feeding period.2. The welding power source according to claim 1 , wherein the controller is configured to determine the position of the distal end of the wire based on a command value of a feeding speed of the wire.3. The welding power source according to claim 1 , wherein in a case where the position of the distal end of the wire that varies periodically is between a position defined by ½ of a wave height defined by an upper point and a lower point of a variation range and a position closer to the base metal than the position defined by ½ of the wave height claim 1 , the controller is configured to start a low-current period during which the welding current is lower than a predetermined current value.4. The welding power source according to claim 3 , wherein the low-current period is started within a range that is from a position of the distal end of the wire at a time point at which a period during which the distal end of the wire is fed forward is switched to a period during which the distal end of the wire is fed reversely to a position of the distal ...

SYSTEMS AND METHODS FOR AUTOMATIC GOUGE TORCH ACTIVATION

Systems and methods are disclosed for automatically activating or deactivating a gouging torch. In particular, the disclosed systems and methods activate and/or deactivate a gouging torch based on a valve operation selection. For example, for welding power supplies and/or welding wire feeders configured to operate both wire welding processes as well as gouging, a valve can be integrated with a gouging torch, which can be adjusted to allow or arrest the flow of compressed air to the gouging torch. In response, the welding power source and/or welding wire feeder automatically changes one or more output characteristics, to switch between a wire welding process and a gouging process without requiring the operator to interact with either the welding power source or welding wire feeder. 1. A welding system comprising:a power supply to operate in an arc welding mode or a gouging mode:a compressed air flow detection sensor configured to measure a flow rate or a pressure of compressed air to a torch; and receive signals from the compressed air flow detection sensor corresponding to the flow rate;', 'control the power supply to operate in a gouging mode when the flow rate or the pressure has exceeded a first threshold flow rate or pressure; and', 'control the power supply to operate in an arc welding mode when the flow rate or the pressure has gone below a second threshold flow rate or pressure., 'a control circuitry configured to2. The system as defined in claim 1 , wherein the torch comprises a selector to indicate an operating mode between the arc welding mode or the gouging mode.3. The system as defined in claim 2 , wherein the selector is a valve to control flow of compressed air to the torch.4. The system as defined in claim 1 , further comprising an interlock circuit configured to:close a gouging circuit and open an arc welding circuit in the gouging mode; andclose the arc welding circuit and open the gouging circuit in the arc welding mode.5. The system as defined in ...

METHOD AND DEVICE FOR OPERATING A LASER MATERIAL PROCESSING MACHINE

A computer-implemented method for operating a laser material processing machine. Process parameters are varied with the aid of Bayesian optimization until a result of the manufacturing, in particular the laser material processing, is sufficiently good. The Bayesian optimization is carried out with the aid of a data-based process model in a first phase, the data-based process model being trained as a function of estimated results. In a second phase, the data-based process model is trained as a function of the ascertained result resulting upon activation of the laser material processing machine. 117-. (canceled)18. A computer-implemented method for operating a manufacturing machine , the method comprising the following steps:varying process parameters using Bayesian optimization until a result of a manufacturing with the manufacturing machine is sufficiently good, the Bayesian optimization being carried out using a data-based process model, wherein in a first phase, the data-based process model is trained as a function of estimated results, and in a second phase, the data-based process model is trained as a function of an ascertained result resulting upon activation of the manufacturing machine.19. The method as recited in claim 18 , wherein the manufacturing machine is a lase material processing machine claim 18 , and the manufacturing is laser material processing.20. The method as recited in claim 18 , wherein the data-based process model to be trained is given as a sum of a first regression model and a second regression model claim 18 , and wherein in the first phase claim 18 , the first regression model is trained claim 18 , and in the second phase claim 18 , the second regression model is trained.21. The method as recited in claim 20 , wherein the second regression model is trained with a difference of the ascertained result and a prediction of the first regression model in the case of associated process parameters.22. The method as recited in claim 21 , wherein ...

Method and Apparatus For Providing Welding Type Power

A method and apparatus for providing welding-type power includes an input circuit, a power circuit, and a controller. The input circuit receives input power and provides intermediate power. The power circuit has a power control input with at least one switch that responds to the control input. The power circuit receives the intermediate power and provides welding type output power. The controller has a set point input and a control output. The control output is connected to the power control input. The control circuit also includes a pwm module that responds to the user set point input and provided the control output. The pwm module can include a short duty cycle linearizing module. The pwm module can also include a short duty cycle charging ramp module. 1. A welding-type system comprising:an input circuit disposed to receive input power and to provide intermediate power;a power circuit, having a power control input and at least one switch responsive to the control input, and wherein the power circuit is disposed to receive intermediate power and provide welding type output power;a controller, having a set point input and a control output, wherein the control output is connected to the power control input, and wherein the control circuit includes a pwm module responsive to the user set point input and providing the control output, wherein the pwm module includes a short duty cycle linearizing module.2. The welding-type system of claim 1 , wherein the pwm module has a pwm transfer function with a first linear gain and the short duty cycle linearizing module has a short duty cycle pwm transfer function with a second linear gain claim 1 , wherein the second linear gain is not the first linear gain.3. The welding-type system of claim 2 , wherein the power circuit is includes an inverter circuit.4. The welding-type system of claim 3 , wherein the input circuit power circuit includes a preregulator.5. The welding-type system of claim 1 , wherein the short duty cycle ...

POWER ROUTING FOR WELDING SUITE

The invention described herein generally pertains to an apparatus for a welding operation having two or more welding tools and a switching device which directs the current to the appropriate welding device for a welding operation. One or more switch devices having two or more settings can be employed to control which device or devices receive current. Moreover, varying remote control techniques can be utilized to control a welding power source or other operatively coupled devices. Powered devices other than welding tools may be used with the switch in embodiments. 1. A system for controlling an electrical current o a first welding tool and a second welding tool , said system comprising:a welding power supply operatively coupled to supply welding power to the first welding tool and the second welding tool;a switch device operatively coupled to the welding power supply, the first welding tool, and the second welding tool, said switch device controlling the electrical current from the welding power supply to the at least one of the first welding tool and the second welding tool; anda control circuit communicatively coupled with the switch device, said control circuit automatically controlling the switching of the switch device between at least a first setting and a second setting,wherein when the switch device is in the first setting, a first current is directed to the first welding tool such that the second welding tool is electrically isolated from the first current and when the switch device is in the second setting, a second current is directed to the second welding tool such that the first welding tool is electrically isolated from the second current, andwherein the switch device is operatively coupled to the welding power supply using an integrated power cable.2. The system of claim 1 , wherein the control circuit is housed within the switch device.3. The system of claim 1 , wherein the switch device has a third setting which prevents either one of the first ...

METHOD AND SYSTEM FOR WELDING WITH TEMPERATURE DETECTOR

The invention described herein generally pertains to a system and method related to a semi-automatic or a manual welding operation and detecting a base material (e.g., workpiece) temperature, communicating the base material temperature, and adjusting the welding operation based on the detected base material temperature. A temperature sensor can detect temperature at a location that is a distance from the arc and, for instance, parallel to a direction of travel of the welding torch and such detected temperature can be communicated to the user performing the weld or the user controlling the semi-automatic welding system. The user can be informed if the detected temperature is within a tolerance or approved range or if the detected temperature is outside the tolerance or approved range for the type of base material and/or pre-defined temperature. 1. A welding system , comprising:a power supply configured to output a welding current to an electrode to create an arc between the electrode and a workpiece;at least one welding torch for performing a welding operation on the workpiece to create a weld joint, the welding torch includes the electrode;a temperature sensor configured to detect a temperature of the workpiece along a path adjacent to the weld joint during the welding operation; anda controller configured to communicate an indication to a feedback device when the temperature of the workpiece exceeds a tolerance associated with a material of the workpiece.2. The welding system of claim 1 , wherein the indication informs an operator to adjust a travel speed of the welding torch along the weld joint to bring the temperature of the workpiece into compliance.3. The welding system of claim 1 , further comprising a wire feeder configured to deliver a welding wire to the arc claim 1 ,wherein the controller is configured to adjust a wire feed speed of the wire feeder when the temperature of the workpiece exceeds the tolerance.4. The welding system of claim 1 , wherein the ...

METHOD AND SYSTEM FOR WELDING WITH TEMPERATURE DETECTOR

Embodiments for controlling heat input for a weld or metal deposition process by monitoring thermal characteristics of a weld environment are disclosed. One embodiment includes a welding helmet having a shell to be worn by a human welder to protect the human welder while viewing a weld environment through a viewing window of the shell during a welding operation using a welding system. A thermal sensing device is integrated with the shell to sense thermal energy of the weld environment and generate thermal data based on the thermal energy. A thermal analysis module is integrated with the shell to analyze the thermal data and generate control parameters. A transmitter device is integrated with the shell to transmit the control parameters to the welding system. The control parameters control at least one welding parameter of the welding system during the welding operation. 1. A welding system , comprising:a power source configured to output a welding current to an electrode to create an arc between the electrode and a workpiece to form a weld puddle during a welding operation;a welding helmet configured to be worn by a human welder to protect the human welder as the human welder views the electrode and the workpiece through the welding helmet during the welding operation;a thermal sensing device integrated with the welding helmet and configured to sense thermal energy of a weld environment and generate thermal data based on the thermal energy during the welding operation, wherein the weld environment includes at least one of the workpiece, the electrode, and the weld puddle;a transmitter device integrated with the welding helmet, operatively connected to the thermal sensing device, and configured to wirelessly transmit the thermal data; and wirelessly receive the thermal data from the transmitter device,', 'analyze the thermal data via the thermal analysis module to generate control parameters, and', 'provide the control parameters to the power source,, 'a controller, ...

DISPOSITION FOR SIGNALING BY MEANS OF A VIBRATORY SYSTEM PLACED IN EQUIPMENT FOR MEASURING AND ANALYSIS OF WELDING PARAMETERS IN REAL TIME

A disposition for signaling by means of a vibratory system placed in equipment for measuring and analysis of welding parameters in real time is provided, relating to a monitoring device in real time applied to electrical parameters in “GMAW” (MIG/MAG) and “TIG” welding devices, in the field of welding equipment. In practice, welding machine operators have found it difficult to immediately perceive alarm signals from equipment for measuring and analysis of welding parameters in real time due to variations in the power source, incorrect regulations and process variations caused by faulty placing of the welding torch or gun. A signaling by means of a vibratory system placed in equipment for measuring and analysis of welding parameters in real time is provided, having a vibratory component applied to the welding torch, the welding gun, the mask, EPI or garments, among other strategic sites.

Welding Power Source with Conformal Antenna

A welding system including a plurality of welding components ( 20, 21, 33, 43 ) communicating via a wireless system using low profile and planar antennas ( 40 ) is disclosed. The welding system comprises a welding power source ( 43 ) and one or more other welding system component(s) ( 20, 21, 33 ) communicating via Zigbee or other wireless communication networks. Communications are transmitted between the components ( 20, 21, 33, 43 ) of the welding system through antennas ( 40 ) mounted externally to the housing of the welding equipment(s) ( 20, 21, 33, 43 ). The antennas ( 40 ) can be low-profile planar antennas ( 40 ), either linearly or circularly polarized, which can be advantageously mounted to a housing while limiting undesirable contact with the environment and therefore to limiting the potential for damage.

ELECTRODE DIAMETER SENSING CONSUMABLES

Electrode diameter sensing consumables are disclosed. An example shielded metal arc welding (SMAW) torch comprises: a handle; a clamp coupled to the handle configured to open and close to hold a SMAW electrode, the clamp comprising a pivot configured to rotate based on a degree of openness of the clamp; and a potentiometer coupled to the pivot such that an output of the potentiometer is representative of a degree of rotation of the pivot 1. A shielded metal arc welding (SMAW) electrode holder , comprising:a handle;a clamp coupled to the handle configured to open and close to hold a SMAW electrode, the clamp comprising a pivot configured to rotate based on a degree of openness of the clamp; anda potentiometer coupled to the pivot such that an output of the potentiometer is representative of a degree of rotation of the pivot.2. The SMAW electrode holder of claim 1 , further comprising a spring configured to exert a force to provide a closing tendency to the clamp.3. The SMAW electrode holder of claim 1 , wherein the potentiometer is configured to claim 1 , when a first signal is applied to the potentiometer claim 1 , output a second signal representative of a size of an electrode held by the clamp.4. A welding system claim 1 , comprising:a material sensing and control system configured to receive an output from a potentiometer of a shielded metal arc welding (SMAW) electrode holder and to determine an electrode size based on the output; and determine, based on the electrode size, at least one of an arc starting parameter or a welding parameter; and', 'control the welding system to implement the determined arc starting parameter or the welding parameter., 'a controller configured to5. The welding system of claim 4 , wherein the material sensing and control system is configured to receive the output from the potentiometer continuously.6. The welding system of claim 4 , wherein the material sensing and control system is configured to receive the output from the ...

Methods and apparatus to communicate via a welding arc

Methods and apparatus to communicate via a welding arc are disclosed. An example welding-type power supply includes a power converter, a weld monitor, and an arc modulator. The power converter outputs welding power to sustain a welding-type arc at a welding-type torch. The weld monitor monitors one or more aspects of a weld performed using the welding-type arc and the welding-type torch, and selects an audio message based on the one or more aspects. The arc modulator configured to modify the welding-type arc to output the selected audio message as a plasma speaker.

OPTICAL MANUFACTURING PROCESS SENSING AND STATUS INDICATION SYSTEM

An optical manufacturing process sensing and status indication system is taught that is able to utilize optical emissions from a manufacturing process to infer the state of the process. In one case, it is able to use these optical emissions to distinguish thermal phenomena on two timescales and to perform feature extraction and classification so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process. In other case, it is able to utilize these optical emissions to derive corresponding spectra and identify features within those spectra so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process. 1. A manufacturing process sensing and status indication system comprising:(a) one or more optical sensors configured to measure the optical emissions from the manufacturing process over a range of wavelengths from 200 nanometers to 1000 nanometers, and produce time-domain optical data;(b) one or more thermal sensors configured to measure thermal phenomena at two different characteristic timescales, a first timescale associated with the application of heat into the manufacturing process by an external heat source and a second timescale associated with the material response to the application of heat within the manufacturing process by the external heat source, and produce time-domain thermal data;(c) an analysis system configured to provide(c1) a first feature extraction process that extracts, from the time domain optical and thermal data, features that are related to the heating rate, cooling rate and peak temperature of the thermal cycles associated with the application of heat into the manufacturing process by an external heat ...

SENSOR DEVICE FOR WELDING

When a gas cannot be stably discharged from an outlet port of a sensor device, an excessive amount of fume may enter a path along which a detection light beam passes outside of the device, with the result that the detection accuracy of the sensor device may vary. A protective cover of a sensor device has formed therein a second gas flow channel that passes a gas to be blown to a protective plate The second gas flow channel has formed therein an outlet port for laser beam projection and an outlet port for detection that are adapted to pass a laser beam L and discharge a gas having flowed through the second gas flow channel to the side on which the laser beam is projected. The second gas flow channel also has formed therein an accumulator adapted to have accumulated therein a gas flowing through the second gas flow channel between the protective cover and the case body The accumulator has formed therein slits as vent holes through which gases are allowed to flow out toward the outlet port for laser beam projection and the outlet port for detection. 1. A sensor device for welding , comprising:a sensor unit including at least a detection unit configured to detect as a detection light beam a light beam from surfaces of work pieces to be welded together, the sensor unit being configured to measure states of the work pieces or a distance to the work pieces using the detection light beam detected with the detection unit;a case body adapted to house the sensor unit, the case body having formed therein at least one pass-through portion that passes the detection light beam directed toward the detection unit; anda protective cover including a protective plate that transmits the detection light beam, the protective cover being attached to the case body such that the protective plate covers the pass-through portion,wherein:the protective cover has formed therein a gas flow channel that passes a gas to be blown to the protective plate, the gas flow channel having formed therein an ...

METHOD AND APPARATUS FOR MANUFACTURING 3D METAL PARTS

A method of manufacturing a metallic part in a weldable material by solid freeform fabrication unrestricted in size and open to the ambient atmosphere. The method comprises generating a computer-generated, three dimensional model of the part, slicing the computer-generated three dimensional model into a set of computer-generated, parallel, sliced layers and then dividing each layer into a set of computer-generated, virtual, one-dimensional pieces and, with reference to layered weld-bead geometry data, forming a computer-generated, direction specific, layered model of the part. The method also comprises uploading the direction specific, layered model of the part into a welding control system able to control the position and activation relative to a support substrate, of an electric arc delivered by a high energy tungsten arc welding torch, a plasma transferred arc welding torch, and/or a gas metal arc welding torch, and a system for feeding a consumable wire placed in an open area build space relevant to the substrate unrestricted in size and open to the ambient atmosphere. The method also comprises directing the welding control system to deposit a sequence of one-dimensional weld beads of the weldable material onto the supporting substrate in a pattern required to form a first layer of the computer-generated, direction specific, layered model of the part, and depositing a second welded layer by sequencing one-dimensional weld beads of the weldable material onto the previous deposited layer in a configuration the same as the second layer of the computer-generated direction specific layered model of the part, and repeating each successive weld bead layer of the computer-generated, direction specific, layered model of the part until the entire part is completed. The method further includes one or both of displacing the atmosphere within the immediate vicinity of the heat source with an inert gas atmosphere which produces a required flow rate, and in which that inert ...

OPTICAL-BASED WELD TRAVEL SPEED SENSING SYSTEM

A travel speed sensing system includes an optical sensor configured to be coupled to a welding torch. The optical sensor is configured to sense light incident on the optical sensor, and the travel speed sensing system is configured to determine a travel speed of the welding torch, a direction of the welding torch, or both, based on the sensed light. 1. A system , comprising:an optical sensor configured to be coupled to a hand held welding tool, the optical sensor configured to sense light incident on the optical sensor; anda torch monitor configured to determine a position or orientation of the hand held welding tool based on the light.2. The system of claim 1 , further comprising the hand held welding tool.3. The system of claim 2 , wherein the hand held welding tool comprises a welding gun used in gas metal arc welding (GMAW) claim 2 , an electrode holder used in shielded metal arc welding (SMAW) claim 2 , an electrode used in SMAW claim 2 , a welding torch used in gas tungsten arc welding (GTAW) claim 2 , or a filler rod used in GTAW.4. The system of claim 1 , wherein the hand held welding tool is configured for live welding.5. The system of claim 1 , further comprising a light source coupled to the hand held welding tool claim 1 , the light source configured to output the light toward a surface in a weld area.6. The system of claim 5 , further comprising a collimator claim 5 , lens claim 5 , or filter configured to maximize collection of reflected light from the light source by the optical sensor.7. The system of claim 1 , wherein a surface is augmented by application of a visible pattern to the surface claim 1 , and the torch monitor is configured to determine the position or orientation of the hand held welding torch based on the light reflected off the visible pattern.8. The system of claim 7 , wherein the visible pattern comprises a painted or taped pattern.9. The system of claim 1 , further comprising a sensor coupled to the hand held welding tool claim 1 , ...

SPATTER COUNTING METHOD, COMPUTER PROGRAM, AND SPATTER COUNTING DEVICE

One object of the present invention is to provide a technique capable of counting the spatters by a simple method while suppressing costs, and the present invention provides a spatter counting method performed by a portable terminal device provided with an image capturing device comprising: an image capturing step of capturing a moving image of an area including spatters generated during welding: and a counting step of counting a number of the spatters captured in each still image constituting the moving image captured in the capturing step. 1. A spatter counting method performed by a portable terminal device provided with an image capturing device comprising:an image capturing step of capturing a moving image of an area including spatters generated during welding: anda counting step of counting a number of the spatters captured in each still image constituting the moving image captured in the capturing step.2. The spatter counting method according to claim 1 ,wherein the spatter counting method further comprises an image processing step of binarization processing the moving image, andin the counting step, an area which has a black and white gradation equal to or higher than a first threshold value, and is composed of adjacent pixels having a black and white gradation equal to or higher than the first threshold, and a size of which is equal to or less than a second threshold value is counted as the spatter in each still image constituting the moving image after the binarization processing.3. The spatter counting method according to claim 2 ,wherein the spatter counting method further comprises a setting step of setting a time zone for counting the number of the spatters in a capturing time of the moving image, andin the counting step, the number of the spatters is counted in each still image constituting the moving image in the time zone set in the setting step.4. The spatter counting method according to claim 1 ,wherein a shutter speed of the image capturing device ...

Welding device, and welding method employing welding device

A welding device for gas shielded arc welding includes: a portable welding robot mounted with a welding torch including a nozzle that guides jetting of shielding gas and a contact tip that performs energization on a consumable electrode; a feeding device that supplies the consumable electrode to the welding torch; a welding power source that supplies electric power to the consumable electrode via the contact tip; a gas supply source that supplies the shielding gas to be jetted from a nozzle end; and a control device that controls the portable welding robot. When the welding torch is seen from a side of jetting of the shielding gas, the contact tip is placed in an inside of an opening of the nozzle, the nozzle and the contact tip have a relatively movable structure, and an inner diameter of the nozzle end is within a range of 10-20 mm.

SPOT WELDING APPARATUS

A spot welding apparatus includes a stationary frame having a housing formed therein. An upper welding gun is mounted to a length direction of a pressing unit disposed in the housing of the stationary frame. A plurality of lower welding guns are mounted on an outside of the stationary frame and ends of the plurality of lower welding guns selectively face one end of the upper welding gun in a length direction of the lower welding guns by the plurality of lower welding guns. A plurality of actuators are mounted on the outside of the stationary frame. A plurality of link units are disposed between the actuators and the lower welding guns, connect the actuators and the lower welding guns, respectively, and rotate as the actuators are operated. 1. A spot welding apparatus comprising:a stationary frame having a housing formed therein, in which one end of the stationary frame in a length direction thereof is opened;an upper welding gun mounted to one end of a pressing unit in a length direction of the pressing unit which is provided in the housing of the stationary frame;a plurality of lower welding guns mounted to an outside of the stationary frame, ends of the plurality of lower welding guns selectively facing one end of the upper welding gun in a length direction of the lower welding guns by selectively rotating to accommodate positions of spots to be welded;a plurality of actuators mounted to the outside of the stationary frame corresponding to the plurality of lower welding guns, the actuators rotating the plurality of lower welding guns, respectively; anda plurality of link units disposed respectively between the actuators and the lower welding guns, connecting the actuators and the lower welding guns, respectively, and rotating as the plurality of actuators operate,wherein a length direction of the upper welding gun is parallel to the length direction of the stationary frame and the upper welding gun moves back and forth in the length direction of the stationary ...

Portable Arc Welder

In embodiments, a welding apparatus includes an automated wire feed mechanism to output wire at a wire feed rate, where the wire is to provide a welding arc to a weld site. The wire feed rate is based at least in part on selected power to be provided to the weld site. Additional embodiments are described and claimed. 1. A welding apparatus comprising:an automated wire feed mechanism to output wire at a wire feed rate, wherein the wire is to provide a welding arc to a weld site and wherein the wire feed rate is based at least in part on selected power to be provided to the weld site.2. The apparatus of claim 1 , further comprising a wire feed controller that includes wire feed circuitry to control the wire feed rate.3. The apparatus of claim 2 , further comprising a battery to provide the selected power claim 2 , wherein the wire feed controller claim 2 , the battery claim 2 , and the automated wire feed mechanism are enclosed in a portable enclosure.4. The apparatus of claim 2 , wherein the wire feed controller is to cause the welding arc to extinguish by removing power to the automated wire feed mechanism responsive to an indication to extinguish the welding arc received from a user.5. The apparatus of claim 1 , wherein the selected power is to be selected based on input to be received from a user.6. The apparatus of claim 1 , wherein the rate of the wire feed is to be controlled automatically based on closed loop feedback to be received from a weld current sensor.7. The apparatus of claim 2 , wherein the wire feed controller is to vary the wire feed rate over time to produce an intermittent welding arc.8. The apparatus of claim 2 , wherein the wire feed controller is to reverse a direction of the wire feed mechanism so as to reverse a direction of output of the wire responsive to a stop command received from a user.9. The apparatus of claim 3 , wherein the portable enclosure is less than or equal to 1200 cubic inches in volume.10. The apparatus of claim 3 , ...

SENSOR FOR DETECTING/MEASURING THE WELDING AND/OR CUTTING CURRENT IN A WELDING AND/OR CUTTING SYSTEM

The invention is a sensor () for welding and/or cutting systems comprising a generator (), a welding and/or cutting torch () and a connection element () comprising one or more power supply cables (lib) of the torch and/or one or more control cables of the torch; the sensor () is such that it is suited to detect the passage of current in at least one of said one or more cables of the connection element (); the sensor () is such that it comprises a ferromagnetic circuit () that at least partially envelops said at least one of said one or more cables of the connection element () and a Hall sensor (). The invention furthermore concerns a welding and/or cutting unit comprising a current sensor (). 11541401111111540194018ba. Sensor () for welding and/or cutting systems comprising a generator () , a welding and/or cutting torch () and a connection element () comprising one or more power supply cables () of said torch () and/or one or more control cables () of said torch (); said sensor () being characterized in that it is suited to detect the passage of current in at least one of said one or more cables of said connection element (); and said sensor being characterized in that it comprises a ferromagnetic circuit () that at least partially envelops said at least one of said one or more cables of said connection element () and a Hall sensor ().21511b. Sensor () according to claim 1 , characterized in that it is suited to measure the intensity of said current that flows through said one or more power supply cables ().31519. Current sensor () according to any of the preceding claims claim 1 , characterized in that said ferromagnetic circuit () comprises one or more C-shaped elements.4151111b. Current sensor () according to claim 3 , characterized in that said one or more C-shaped elements at least partially envelop/envelops said one or more power supply cables () of said torch () or parts of said torch body ().5151719. Current sensor () according to any of the preceding ...

CONTROL SYSTEM FOR WELDING SYSTEMS

The invention is a control system () for welding and/or cutting systems of the type comprising a generator (), a welding and/or cutting torch () suited to be connected to said generator () through a connection element () and a protection unit comprising a protection screen () that can be darkened, for example an LCD filter, said control system () being characterized in that it comprises first transmission/reception means () of the Bluetooth® type cooperating with said protection unit and/or with said protection screen () in order to control the darkening of said protection screen () and/or the start/stop of the welding and/or cutting arc. The invention concerns also a welding and/or cutting unit comprising a welding and/or cutting torch () suited to be connected to a generator () through a connection element and a welding and/or cutting system comprising a generator, a welding and/or cutting unit suited to be connected to the generator through a connection element () and a protection unit comprising a protection screen (). 164144036733. Control system () for welding and/or cutting systems of the type comprising a generator () , a welding and/or cutting torch () suited to be connected to said generator () through a connection element () and a protection unit comprising a protection screen () that can be darkened , for example an LCD filter , said control system () being characterized in that it comprises first transmission/reception means () of the Bluetooth® type cooperating with said protection unit and/or with said protection screen () in order to control the darkening of said protection screen () and/or the start/stop of the welding and/or cutting arc.267. Control system () according to claim 1 , characterized in that said transmission/reception means () are suited to exchange information with any device of the Bluetooth® type claim 1 , both inside the welding system claim 1 , for example another transmission/reception means of the Bluetooth® type claim 1 , and ...

WELDING POWER SUPPLIES HAVING ADJUSTABLE CURRENT RAMPING RATES

Welding power supplies having adjustable current ramping rates are disclosed. An example welding power supply, comprising: a switched mode power supply to convert primary power to welding-type power having an output current based on a current control loop; a voltage sensing circuit to measure a weld voltage; a voltage comparator to determine whether the weld voltage corresponds to a welding arc condition or a short circuit condition; and a control circuit to: select a current ramping rate; and execute the current control loop to control the output current, the control circuit configured to, while the weld voltage corresponds to the short circuit condition, increase the output current at the current ramping rate. 1. A welding power supply , comprising:a switched mode power supply to convert primary power to welding-type power having an output current based on a current control loop;a voltage sensing circuit to measure a weld voltage;a voltage comparator to determine whether the weld voltage corresponds to a welding arc condition or a short circuit condition; and select a current ramping rate; and', 'execute the current control loop to control the output current, the control circuit configured to, while the weld voltage corresponds to the short circuit condition, increase the output current at the current ramping rate., 'a control circuit to2. The welding power supply as defined in claim 1 , further comprising a user input device to receive a current ramping rate input claim 1 , the control circuit configured to select the current ramping rate based on the current ramping rate input.3. The welding power supply as defined in claim 2 , further comprising a second user input device to receive an output current setpoint claim 2 , the control circuit configured to claim 2 , when the weld voltage corresponds to a welding arc claim 2 , control the output current based on the output current setpoint.4. The welding power supply as defined in claim 2 , wherein a ratio of a ...

WELDING SYSTEM WITH POWER LINE COMMUNICATION

Various welding systems that provide communication over auxiliary or weld power lines are provided. The disclosed embodiments may include a multi-process welding power supply that is communicatively coupled to a pendant via an auxiliary conduit that facilitates the exchange of data and power between components of the welding system. In some embodiments, the pendant may also include auxiliary outlets that allow an operator to power auxiliary devices at the weld location. The disclosed embodiments further include a pendant with a wire spool and wire feeder drive circuitry that is configured to activate spooling during MIG welding. Embodiments are provided that also allow for bidirectional data communication over a power line in networked welding systems. 1. A welding system comprising:a power supply unit that in operation outputs welding power at welding terminals and outputs a combined signal comprising an auxiliary power signal combined with a data signal to an auxiliary power conductor; anda pendant configured to be located remotely with respect to the power supply unit, wherein the pendant receives the combined signal via the auxiliary power conductor, and wherein the pendant is configured to communicate data with the power supply unit via the auxiliary power conductor.2. The welding system of claim 1 , wherein the pendant includes one or more power receptacles configured to output the auxiliary power signal to one or more auxiliary devices.3. The welding system of claim 1 , wherein the pendant comprises a wire feeder enabled when a metal inert gas (MIG) process or a MIG/flux core process is selected.4. The welding system of claim 1 , wherein the communication of data is bidirectional between the power supply unit and the pendant.5. The welding system of claim 1 , wherein the pendant is configured to allow a user to select a welding process and to communicate the selection to the power supply unit via the auxiliary power conductor.6. The welding system of claim 1 ...

Welding system with breath-based control

A new welding system is provided that makes use of breath of the operator to control one or more operating parameters of the power source or welding machine (or “welder”). The welding system may be configured for arc welding, and the welding machine or welder may include a constant voltage power source with varying current (or vice versa). In such an embodiment, the welding system includes a breath-based controller with a mouthpiece through which the operator can breathe or blow in air. The breath-based controller processes the user's breath to determine user input, and this operator input is communicated to the welder or welding machine (via wired or wireless communication links) to control arc intensity (i.e., current for a constant voltage welding machine) or arc length (i.e., voltage for a constant current welding machine). An operator uses the breath-based controller to remotely control the welding machine with high precision.

WELDING DEVICES

There is described a modular welding device having a welding torch assembly defining a welding axis and having a welding torch rotatable about the welding axis. The welding device further includes a drive assembly releasably attachable to the welding torch assembly and operable to linearly translate the welding torch assembly along an axis of translation. When the drive assembly is attached to the welding torch assembly in a first orientation relative to the welding torch assembly, the drive assembly is detachable from the welding torch assembly and re-attachable to the welding torch assembly so as to be disposed in a second orientation relative to the welding torch assembly. 1. A welding device comprising:a welding torch assembly defining a welding axis and comprising a welding torch rotatable about the welding axis; anda drive assembly releasably attachable to the welding torch assembly and operable to linearly translate the welding torch assembly along an axis of translation,wherein, when the drive assembly is attached to the welding torch assembly in a first orientation relative to the welding torch assembly, the drive assembly is detachable from the welding torch assembly and re-attachable to the welding torch assembly so as to be disposed in a second orientation relative to the welding torch assembly.2. The welding device of claim 1 , wherein:when the drive assembly is attached to the welding torch assembly in the first orientation, the drive assembly is attached to the welding torch assembly at an attachment location on the welding torch assembly; andwhen the drive assembly is attached to the welding torch assembly in the second orientation, the drive assembly is attached to the welding torch assembly at the same attachment location.3. The welding device of claim 1 , wherein:when the drive assembly is attached to the welding torch assembly in the first orientation, the drive assembly is attached to the welding torch assembly at an attachment location on the ...