СПОСОБ ОБРАБОТКИ СО СНЯТИЕМ СТРУЖКИ ПО МЕНЬШЕЙ МЕРЕ ОДНОГО ЗАЗОРА МЕЖДУ ЗУБЬЯМИ КОНИЧЕСКОГО ЗУБЧАТОГО КОЛЕСА ИЛИ ГИПОИДНОГО ЗУБЧАТОГО КОЛЕСА ОБРАБАТЫВАЕМОЙ ДЕТАЛИ

... 1. Способ обработки со снятием стружки по меньшей мере одного зазора (31) между зубьями конического зубчатого колеса или гипоидного зубчатого колеса обрабатываемой детали (30), который включает в себя следующие операции:- вращение инструмента (40), имеющего по меньшей мере первую главную режущую кромку (42) и вторую главную режущую кромку (43), относительно оси вращения (WR) инструмента, при осуществлении следующих операций индексации:- осуществление первого относительного линейного движения врезания вдоль первого вектора (Vk1) врезания, который идет главным образом перпендикулярно к конусу основания обрабатываемой детали (30) и который определяет одну конечную точку (E1) первого движения врезания, которая лежит у положения обрабатываемой детали (50), составляющего больше чем 10 процентов глубины паза зазора (31) между зубьями, который должен быть произведен, чтобы механически обработать при помощи первой главной режущей кромки (42) сначала область поблизости от головки зуба первой боковой ...

СПОСОБ ЗУБОТОЧЕНИЯ И СТАНОК ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

... 1. Способ зуботочения первой обрабатываемой детали (50.1) и второй обрабатываемой детали (50.2), которые имеют вращательно-симметричные, периодические структуры, который включает в себя следующие операции:использование первой обрабатываемой детали (50.1);подвод инструмента (100) для зуботочения к первому относительному положению (RP1) относительно первой обрабатываемой детали (50.1);осуществление первого действия обработки зуботочением первой обрабатываемой детали (50.1), при котором все правые боковые поверхности (54) или все левые боковые поверхности (53) периодической структуры первой обрабатываемой детали (50.1) будут окончательно обработаны, а соответствующие другие боковые поверхности (53; 54) будут предварительно обработаны;подвод инструмента (100) для зуботочения ко второму относительному положению (RP2) относительно первой обрабатываемой детали (50.1);осуществление второго действия обработки зуботочением первой обрабатываемой детали (50.1), при котором будут окончательно обработаны ...

Nibbling machine for rounding edges of gear teeth - has pair of end milling cutters mounted on transverse slides axially advanced by cylinder

The edges of the teeth of gear wheels are rounded by two end milling cutters. Each milling cutter is mounted on a spindle supported in a housing fixed to an inclined base. The base is fixed to a platform which can be adjusted for height by a bolt. The platform is mounted on the housing, which can move laterally by a slide. The two milling cutters are mounted symmetrically on either side of the workpiece. The workpiece is mounted on a spindle supported by a housing which can be moved axially by an hydraulic or pneumatic cylinder. The combination of all these movements enables the milling cutters to follow the tooth profile on both flanks.

Wälzschälmodul

Wälzschälmodul (1), welches für eine Montage auf einen eine Werkzeugaufnahme aufweisenden Werkzeugrevolver einer numerisch gesteuerten Drehmaschine vorgesehen ist, wobei das genannte Modul (1) umfasst: – erste Tragmittel (2), welche für die Befestigung an dem genannten Werkzeugrevolver mit der Werkzeugaufnahme vorgesehen sind; – zweite Tragmittel (3), welche mit den genannten ersten Tragmitteln (2) verbunden sind, mit der Möglichkeit des Anpassens der Winkelposition derselben bezogen auf die genannten ersten Tragmittel um eine Stellachse (H); – einen Rotor (4), welcher um eine erste Rotationsachse (J) drehbar mit den genannten zweiten Tragmitteln (3) gekoppelt ist, welche sich mit der genannten Stellachse (H) deckt, wobei der genannte Rotor (4) mit mechanischen Verbindungsmitteln (5) zu einem Antrieb des Werkzeugrevolvers mit der Werkzeugaufnahme derart versehen ist, dass der genannte Rotor (4) mechanische Energie durch den Antrieb erhält; – ein gezahntes Werkzeug (6) zum Wälzschälen, welches ...

Verfahren zur Bearbeitung der Zahnflanken eines Zahnrades

Verfahren zur Vermeidung von Überbeanspruchungen eines Werkstückes beim Schleifen

Meßgeometrie, Meßeinrichtung mit einer solchen Meßgeometrie und Meßverfahren

Die Erfindung betrifft eine Meßgeometrie für ein verzahntes, insbesondere zum Wälzschälen von Werkstückverzahnungen ausgelegtes Werkzeug zur Bestimmung wenigstens einer Meßgröße, welche für einen mit dem Werkzeug durchzuführenden Prozeß, insbesondere Schälprozeß verwendbar ist, in einer Phase dessen das Profil der zu erzeugenden Werkstückverzahnung in Verzahnungseingriff mit der Werkzeugverzahnung gebildet wird, gekennzeichnet durch einen Verzahnungsbereich, mit welchem die Werkzeugverzahnung bei Bestimmung der Meßgröße in einem dem Verzahnungseingriff zwischen Werkzeug und Werkstück in der profilbildenden Phase entsprechenden Verzahnungseingriff steht, sowie eine Meßeinrichtung und ein Meßverfahren.

Verfahren zum Feinbearbeiten von Zahnraedern mit einem vorgegebenen Tiefenvorschub

METHOD OF CUTTING A GEAR

GEAR FINISHING MACHINE

... 1376045 Honing gears; burnishing gears; rolling gears; finishing gears LEAK SIEGLER Inc 30 June 1972 [6 July 1971] 30708/72 Headings B3D B3X B3M and B3K A gear finishing machine, such as a gear honing, shaving, burnishing or rolling machine, comprises a first carrier for a first rotary support adjustably mounted on a frame for movement towards a second rotary support on a second carrier, the supports carrying a gear and a gearlike tool, the second carrier being movable towards and away from the first, means for rotatably driving one of the supports, means for feeding the second carrier towards and away from the first to establish a form between the gear and tool, means for angularly adjusting one of the carriers about an axis perpendicular to the axes of the supports, and means for traversing one of the supports on the frame. As described, the workpiece W is mounted between head and tail stocks 14 on a tilt table 12 rockable about a horizontal pivot 18 on a frame 10, by an hydraulic device ...

WORKPIECE ENGAGING APPARATUS IN GRINDING MACHINES

PRODUCING AND MACHINING GEARWHEELS

Improvements in or relating to machines for producing toothed gears

... 236,511. Gleason Works, (Assignees of Bullock, E. W., and Slade, A. P.). July 5, 1924, [Convention date]. Gear-cutting.-In a gear-generating machine for grinding curved tooth bevel gears the blank is rolled past an annular rotary grinding-tool which moves through a tooth space of the gear blank, the grinding-tool being intermittently withdrawn to permit indexing of the blank and being automatically dressed at predetermined intervals. The blank support is mounted in a head 5 on a table 6 which is angularly adjusted by rack and pinion gearing. The table is itself supported on a carrier 9 oscillated on ways 10 through a link 11 operated from a shaft 12. The translatory movement thus imparted to the blank is combined with a rotary movement to give correct rolling by means of a segment 13 rolling on a stationary segment comprising two portions 14, 15 which are slightly yieldable against the action of springs. The grinding-wheel 20 is mounted on a spindle 21, Fig. 43, journaled in a tapered bearing ...

EQUIPMENT TO FACILITATE CHAMFERING TOOL GEAR MESHING

AUTOMATIC WORKPIECE ENGAGING APPARATUS IN GRINDING MACHINES

STOCK DIVIDER

Improvements in or relating to hobbing machines

... 1,013,718. Gear-cutting. M. PFAUTER, G. PFAUTER, H. PFAUTER, and W. PFAUTER, [trading as FIRM HERMANN PFAUTER]. Aug. 31, 1962, No. 33480/62. Headings B3B and B3K. A hobbing machine comprises flywheels connected through spring means to the hob and work-table shafts, two measuring devices for measuring the relative angular rotation between each mass and its associated shaft, means for comparing the outputs of the measuring devices, and an adjusting device for automatically modifying the drive to the shafts to maintain a substantially constant ratio between their rotational speeds. The measuring device 11a on the cutter shaft 4 has a casing 12 containing a flywheel 14 on a spring support 13, any difference between the angular positions of the wheel and casing causing a signal to be transmitted through a wire 17 to a comparator 19. The comparator also receives a signal from the device 11 on the work-shaft and compares the signals against means corresponding to the ratio of the speeds of the ...

PROCEDURE FOR THE AVOIDANCE OF OVERSTRESSING OF A WORKPIECE WHEN SHARPENING

METHOD OF DRESSING A THREADED GRINDING WHEEL

A method of dressing a threaded grinding wheel (20) for grinding crown gears. The method comprises providing a dressing tool (30) in the form of a pinion member (14) with the dressing tool (30) having the same pitch as a mating pinion member (14) of the crown gear (2). Rotating the dressing tool (30) and the grinding wheel (20) at respective velocities whereby the dressing tool (30) and grinding wheel (20) may run in mesh with one another. Moving the dressing tool (30) across the width of the grinding wheel (20) rotating with the dressing tool (30) and grinding wheel (20) rotating in mesh, with the dressing tool (30) moving completely along the width of the grinding wheel (20). The path that the dressing tool (30) moves along being defined as an arcuate path (38) about a point (16) on the grinding wheel (30) corresponding to a center point of the mating pinion (14).

METHOD OF DRESSING A THREADED GRINDING WHEEL

Nach dem Abwälzverfahren arbeitende Zahnradbearbeitungsmaschine.

Appareil à contrôler les engrenages.

Schraubwälzschleifverfahren für Zahnräder und Maschine zum Ausführen des Verfahrens.

Vorrichtung an Werkzeugmaschinen zum Bearbeiten von schraubenlinienförmigen Kanten eines Werkstückes, zum Einstellen verschiedener Steigungen und Bearbeitungstiefen.

Roue de meule

Zahnradläppmaschine

Verfahren und Vorrichtung zum Schleifen von Zahnrädern nach dem Wälzverfahren.

Vorrichtung zum Entgraten der Stirnkanten von Zahnrädern

Entgratungs- und Reinigungsmaschine für insbesondere runde Werkstücke

Machine à roder et brunir les roues dentées.

Schneckengetriebe zum Antrieb der Arbeitsspindel von Zahnradbearbeitungsmaschinen und Teilköpfen.

Zustelleinrichtung für Maschinen zum Fertigbearbeiten von Zahnrädern

Maschine zum Bearbeiten von Kegelrädern mit gekrümmtem oder geradem Zahnverlauf

Verzahnungsmaschine, insbesondere für geradverzahnte Kegelräder

Machine à tailler les engrenages

Einstellgerät zur Bestimmung der genauen Lage des Werkzeuges zum Werkstück beim Zweiflankenschleifen auf Zahnradschleifmaschinen

Verfahren zum Herstellen von Verzahnungen auf einer Abwälzfräsmaschine und Zahnräderwälzfräsmaschine zur Ausführung des Verfahrens

Dispositif de commande et de vérification des opérations successives d'une machine

ANTRIEBSVORRICHTUNG FUER ZAHNRADSCHLEIFMASCHINE.

Maschine für die Fertigbearbeitung von Zahnrädern

Zahnradschleifmaschine

Verfahren, um zwei still stehende Zahnräder miteinander in Eingriff zu bringen, und Vorrichtung zur Durchführung des Verfahrens

Vorrichtung an Werkzeugmaschinen zum Steuern eines Werkzeuges

Gerät für das Einrichten des Werkstückes zum Werkzeug für das Zweiflankenschleifen

Vorrichtung, um zwei stillstehende Zahnräder miteinander in Eingriff zu bringen

Machine pour faire tourner ensemble une paire de roues dentées

Zahnflankenschleifmaschine zum kontinuierlichen Abwälzschleifen von Stirnrädern

VORRICHTUNG ZUM FIXIEREN EINES VORVERZAHNTEN WERKSTUECKES AN VERZAHNMASCHINE, INSBESONDERE ZAHNFLANKENSCHLEIFMASCHINE.

PROCEDURE FOR THE CONTROLLING OF BRINGING A TOOL IN A WORKPIECE AT A GEAR WHEEL PROCESSING MACHINE AND MECHANISM FOR THE EXECUTION OF THE PROCEDURE.

DEVICE FOR FACILITATING ALIGNING HEAVY WORKPIECES ON A MACHINE TABLE.

Device for the controlled adjustment of the tool or workpiece carrier of a grinding machine

For the relative adjustment of a workpiece (3) with respect to a grinding wheel (2), a carrier (5), used either as tool support or as workpiece clamping means, can be adjusted at least in the longitudinal and transverse directions. A first adjusting device (1) is used for the longitudinal adjustment and a second adjusting device (23) is used for the transverse adjustment. A first sensor (8) which is electrically connected to the drive motor (36) of the grinding wheel (2) establishes the end of the grinding contact between the grinding wheel (2) and the workpiece (3). A second sensor (13) scans the longitudinal adjustment and a third sensor (21) scans the transverse adjustment of the carrier (5). The first sensor (8) is connected to a first switching device (6) of the first adjusting device (1), in order to activate the latter when grinding contact finishes. The switching device (6) receives items of direction information from the position sensor (13). A second switching device (25) of the ...

RECORDING SHEET GEAR TEETH.

POSITIONING MECHANISM FOR GRINDING WHEELS AND GEAR WHEEL AT PROFILE GRINDERS.

PROCEDURE AND TAX ARRANGEMENT FOR THE SETTING-UP OF A TOOTH-RADIAL WORKPIECE.

PROCEDURE AND MECHANISM FOR AUTOMATIC REGULATING OF THE WINKELLAGE OF A VORVERZAHNTEN WORKPIECE CONCERNING A SCHNECKENFOERMIGEN TOOL.

Feed gear device for a grinding tool of a gear-wheel grinding machine, in particular a gear-wheel grinding machine having a helically profiled grinding wheel

The feed gear device comprises a gear wheel (17) which is assigned to the feed spindle (42) and is connected, by a gear wheel (16), in a kinematic manner to a common shaft (46) which, via a first gear wheel (13) and a rapid-moving wheel set (12, 5, 4, 3, 2), is connected, by a rapid-movement coupling (6), to a drive motor (1) which, via an advancement-wheel set (2 - 5, 7 - 10, 15), is switched through, by an advancement coupling (11), to a second gear wheel (14) of a common shaft (46). By the second gear wheel (14) of the common shaft (46) and via a feed-wheel set, a locking wheel provided with a diaphragm is coupled with a catch, and the catch is coupled with a gear wheel of a feed cylinder. This design is very simple and ensures mutual coordination of the individual movements of the grinding-spindle head and thus also the possibility of automating the manufacturing process, it being possible to vary the individual movements as required during an operating cycle. ...

Automatic positioning of gear-wheel tooth gap for numerically controlled gear edge machine - involves using two-edge ball sensor system for recording radial and tangential deflections

A control computer positions a gear-wheel tooth gap (3) using sensor signals from an integrated sensing system (7) in a tool support with a sensor insert (8). The insert has a measurement ball (6) for two-edge sensing. Sensing system sensors (10,11) record radial and tangential deflections from null positions. A radial deflection indicates either that the ball is on a tooth crown (apex) or that it is in contact with both sides of a gap, resulting in insert retraction and rotation of a clamping table. A tangential deflection causes rotation of the clamping table to achieve the null position. ADVANTAGE - The method enables the number of clamping table movements, and hence the measurement times, to be reduced.

PROCEDURE FOR THE CONTROLLING OF THE TOOL FEED WITH BEGINNING OF WORKING ON AT A GEAR WHEEL PROCESSING MACHINE.

PROTECTION DEVICE FOR FUEHRUNGSBAHNEN OF MACHINE TOOLS.

DEVICE AT A MACHINE TOOL FOR AUTOMATIC POSITIONING OF A TEETH OR A SLOT WORKING ON TOOL.

Procedure and device for working on modified teeth.

Die Erfindung betrifft ein Verfahren für die Herstellung eines Werkstückes mit korrigierter Verzahnungsgeometrie und/oder modifizierter Oberflächenstruktur, insbesondere durch einen Hartfeinbearbeitungsprozess, insbesondere durch Wälzschleifen oder Honen. Dabei ist vorgesehen, dass mittels gezielter Erzeugung einer Taumelbewegung und/oder einer Exzentrizität des Werkzeuges erreicht wird, dass eine Modifikation, insbesondere eine Profilmodifikation oder -welligkeit und/oder eine definierte periodische Flankenwelligkeit, auf der aktiven Oberfläche des damit bearbeiteten Werkstückes erzeugt wird.

The method for producing a workpiece with corrected toothing geometry.

Die Erfindung betrifft ein Verfahren für die Herstellung eines Werkstückes (3) mit korrigierter Verzahnungsgeometrie und/oder modifizierter Oberflächenstruktur, insbesondere durch einen Hartfeinbearbeitungsprozess, insbesondere durch Wälzschleifen oder Honen. Dabei ist vorgesehen, dass mittels gezielter Erzeugung einer Taumelbewegung und/oder einer Exzentrizität des Werkzeuges (1) erreicht wird, dass eine Welligkeit der Zahnflanke mit gewünschter Amplitude auf der aktiven Oberfläche des damit bearbeiteten Werkstückes (3) erzeugt wird.

Machine for finishing toothed workpieces and method for measuring characteristics of a finishing tool.

Eine Maschine zur Feinbearbeitung von verzahnten Werkstücken weist eine Werkzeugspindel (30) zum Aufspannen eines Feinbearbeitungswerkzeugs (31) auf. Mittels eines Werkzeugspindelantriebs (32) lässt sich die Werkzeugspindel zu einer Drehung um eine Werkzeugspindelachse (B) antreiben. Eine Steuereinrichtung (70) führt mittels eines Abstandssensors (60) mindestens eine Abstandsmessung zum Feinbearbeitungswerkzeug (31) durch und ermittelt daraus mindestens eine Kenngrösse des Feinbearbeitungswerkzeugs, insbesondere dessen Aussendurchmesser. Der Abstandssensor kann insbesondere optisch arbeiten.

Machine tool for the rolling machining of rotary members with groove-shaped profiles.

Eine Werkzeugmaschine ist für die Wälzbearbeitung von Rotationsteilen mit nutförmigen Profilen, insbesondere Verzahnungen, vorgesehen An einem Maschinenbett (100) ist einerseits ein Y-Schlitten (200) angeordnet, der entlang einer Y-Richtung verschiebbar ist und eine Werkstückspindel (210) trägt Die Werkstückspindel treibt ein Werkstück (220) zu einer Rotation um eine Werkstückachse (C) an Andererseits ist am Maschinenbett ein Z-Schlitten (300) angeordnet Dieser ist entlang einer Z-Richtung, die parallel zu einer von der Y-Richtung und der Werkstückachse aufgespannten Mittenebene (E1) verläuft, angeordnet Am Z-Schlitten ist ein X-Schlitten (310) angeordnet und entlang einer X-Richtung gegenüber dem Z-Schlitten (300) verschiebbar Die X-Richtung verläuft senkrecht zur Mittenebene Auf dem X-Schlitten ist eine Werkzeugspindel angeordnet, die ein Werkzeug zu einer Drehung um eine Werkzeugachse antreibt Die Werkzeugspindel ist gegenüber dem X-Schlitten in einer Schwenkebene (E2), die parallel ...

Method for testing an abradable grinding worm.

Verfahren zur Prüfung einer abrichtbaren Schleifschnecke, mit den Verfahrensschritten: – Bereitstellen einer abrichtbaren Schleifschnecke (2) in einer Werkzeugmaschine (20), – wobei die Schleifschnecke (2) mindestens einen Schneckengang hat und – wobei die Werkzeugmaschine (20) ein Abrichtwerkzeug (22) zum Abrichten der Schleifschnecke (2) aufweist; – Abfahren eines Gangkopfs (18) des Schneckengangs in Anlage mit einem Bereich des Abrichtwerkzeugs (22); – Messen und Auswerten mindestens eines Signals während des Abfahrens des Gangkopfs (18) das für den Kontakt zwischen dem Abrichtwerkzeug (22) und dem Gangkopf (18) des Schneckengangs charakteristisch ist, wie eine Kontaktkraft, eine Verlagerung, ein Körperschall, eine Leistungsaufnahme eines Antriebs oder dergleichen.

Operating panel for a machine tool.

Eine Bedientafel für eine Werkzeugmaschine weist ein Gehäuse auf. Das Gehäuse umfasst ein Gehäusebasisteil (2) und ein Gehäusevorderteil (3). Am Gehäusevorderteil sind ein Display (19) und ein Bedienelementefeld (20, 21) befestigt. Das Gehäusevorderteil ist im Bereich des unteren Gehäuserandes über Gehrungsscharniere schwenkbar mit dem Gehäusebasisteil verbunden, um so einen Zugang zum Gehäuseinneren zu ermöglichen. Ausklappbare Auflagen (13) ermöglichen es, bei Wartungsarbeiten eine alphanumerische Tastatur (15) einzusetzen. Beidseitige Einbuchtungen (5) der Gehäuserückseite ermöglichen ein leichtes Ergreifen des Gehäuses. In den Einbuchtungen sind Bedienelemente (18) angeordnet.

Machine tool for the rolling machining of rotary members with groove-shaped profiles.

Eine Werkzeugmaschine ist für die Wälzbearbeitung von Rotationsteilen mit nutförmigen Profilen, insbesondere Verzahnungen, vorgesehen. An einem Maschinenbett (100) ist einerseits ein Y-Schlitten (200) angeordnet, der entlang einer Y-Richtung verschiebbar ist und eine Werkstückspindel (210) trägt. Die Werkstückspindel treibt ein Werkstück (220) zu einer Rotation um eine Werkstückachse (C) an. Andererseits ist am Maschinenbett ein Z-Schlitten (300) angeordnet. Dieser ist entlang einer Z-Richtung, die parallel zu einer von der Y-Richtung und der Werkstückachse aufgespannten Mittenebene (E1) verläuft, angeordnet. Am Z-Schlitten ist ein X-Schlitten (310) angeordnet und entlang einer X-Richtung gegenüber dem Z-Schlitten (300) verschiebbar. Die X-Richtung verläuft senkrecht zur Mittenebene. Auf dem X-Schlitten ist eine Werkzeugspindel angeordnet, die ein Werkzeug zu einer Drehung um eine Werkzeugachse antreibt. Die Werkzeugspindel ist gegenüber dem X-Schlitten in einer Schwenkebene (E2), die parallel ...

Method and apparatus for measuring a rolling processing tool.

In einem Verfahren zur Vermessung eines Werkzeugs (1) für die Wälzbearbeitung verzahnter Werkstücke wird ein virtueller Berührpunkt auf einer abgerundeten virtuellen Schneide eines virtuellen Werkzeugs berechnet. Sodann werden die Relativorientierung zwischen der Werkzeugachse (B) und dem Messgerät (11) sowie eine translatorische Relativposition zwischen dem Werkzeug und dem Messgerät auf der Basis des berechneten virtuellen Berührpunkts berechnet und eingestellt. Die Messung an der realen Schneide erfolgt in der eingestellten Relativorientierung und Relativposition. Sie kann insbesondere mit Hilfe eines zylindrischen Tastmittels in Form eines Lichtstrahls erfolgen, wobei das zylindrische Tastmittel die virtuelle Schneide im virtuellen Berührpunkt tangential berührt.

ADJUSTING DEVICE FOR A GEAR CUTTING MACHINE WITH A REDUCED TENDENCY TO VIBRATE

Eine Verstellvorrichtung für eine Werkzeugmaschine weist einen Basiskörper (1), einen beweglichen Körper (2), der entlang einer Bewegungsrichtung (X) gegenüber dem Basiskörper bewegbar ist, und einen Antrieb (3) auf, um den beweglichen Körper gegenüber dem Basiskörper zu bewegen. Um wirksam Schwingungen zwischen dem beweglichen Körper und dem Basiskörper (insbesondere sogenannte vagabundierende Schwingungen) zu dämpfen und dennoch schnelle Positionierbewegungen des beweglichen Körpers gegenüber dem Basiskörper zu ermöglichen, weist die Verstellvorrichtung einen Hilfskörper (10) auf, der lösbar am Basiskörper fixierbar ist und im gelösten Zustand gemeinsam mit dem beweglichen Körper gegenüber dem Basiskörper bewegbar ist. Die Verstellvorrichtung weist zudem mindestens einen Schwingungsdämpfer auf, der zwischen dem Hilfskörper und dem beweglichen Körper angeordnet ist.

Method for treatment of gearing a workpiece with a tool, wherein the treatment of gearing by means of a coolant nozzle during coolant attached to said tool.

Die vorliegende Erfindung betrifft ein Verfahren zur Verzahnbearbeitung eines Werkstücks (4) mit einem an einer Verzahnmaschine angeordneten Werkzeug, wobei während der Verzahnbearbeitung mittels einer Kühlmitteldüse (50, 50´) Kühlmittel auf das Werkzeug aufgebracht wird, wobei die Ausrichtung und/oder Position der Kühlmitteldüse (50, 50´) in Abhängigkeit von einem Steigungswinkel des Werkzeuges eingestellt wird.

Method and apparatus for measuring a rolling processing tool.

In einem Verfahren zur Vermessung eines Werkzeugs (1) für die Wälzbearbeitung verzahnter Werkstücke wird ein virtueller Berührpunkt auf einer abgerundeten virtuellen Schneide eines virtuellen Werkzeugs berechnet. Sodann werden die Relativorientierung zwischen der Werkzeugachse (B) und dem Messgerät (11) sowie eine translatorische Relativposition zwischen dem Werkzeug und dem Messgerät auf der Basis des berechneten virtuellen Berührpunkts berechnet und eingestellt. Die Messung an der realen Schneide erfolgt in der eingestellten Relativorientierung und Relativposition. Sie kann insbesondere mit Hilfe eines zylindrischen Tastmittels in Form eines Lichtstrahls erfolgen, wobei das zylindrische Tastmittel die virtuelle Schneide im virtuellen Berührpunkt tangential berührt.

Method and device for measuring a rolling-machining tool.

In einem Verfahren zur Vermessung eines Werkzeugs (1) für die Wälzbearbeitung verzahnter Werkstücke wird ein virtueller Berührpunkt auf einer abgerundeten virtuellen Schneide eines virtuellen Werkzeugs berechnet. Sodann werden die Relativorientierung zwischen der Werkzeugachse (B) und dem Messgerät (11) und sowie eine translatorische Relativposition zwischen dem Werkzeug und dem Messgerät auf der Basis des berechneten virtuellen Berührpunkts berechnet und eingestellt. Die Messung an der realen Schneide erfolgt in der eingestellten Relativorientierung und Relativposition. Sie kann insbesondere mit Hilfe eines zylindrischen Tastmittels in Form eines Lichtstrahls erfolgen, wobei das zylindrische Tastmittel die virtuelle Schneide im virtuellen Berührpunkt tangential berührt.

Werkzeugwechsler.

Ein Werkzeugwechsler (200) dient zum Auswechseln von Werkzeugen (500) in einer Werkzeugmaschine. Der Werkzeugwechsler weist eine Tragstruktur (210) auf, an der ein Hubschlitten (240) entlang einer vertikalen Hubrichtung (Z3) geführt ist. Ein Schwenkarm (250) ist um eine vertikale Schwenkachse (C3) schwenkbar an dem Hubschlitten (240) angebracht. Eine Mehrzahl von vertikal übereinander angeordneten Werkzeugaufnahmen (221, 222, 223, 230) bilden ein Werkzeugmagazin (220). An dem Schwenkarm (250) ist ein Werkzeuggreifer (260) angebracht. Der Werkzeuggreifer ergreift ein Werkzeug (500). Das Werkzeug wird anschliessend durch eine kombinierte Hub- und Schwenkbewegung des Schwenkarms (250) zwischen einer der Werkzeugaufnahmen und der Werkzeugspindel der Werkzeugmaschine bewegt. Optional ist ein Zusatzarm schwenkbar an dem Schwenkarm (250) angebracht. Mit Hilfe des Zusatzarms (252) kann ein Werkstückspannmittel der Werkzeugmaschine ausgewechselt werden.

Bearbeitung eines Werkstücks mit zwei Verzahnungen.

In einem Verfahren zum Bearbeiten eines Werkstücks (60), das eine erste und zweite Verzahnung (61, 62) aufweist, wird eine Referenzzahnstruktur der ersten Verzahnung (61) identifiziert. Die Referenzzahnstruktur wird dann mit einer Referenzvermessungseinrichtung (140) vermessen, um eine Referenzdrehwinkellage des Werkstücks zu ermitteln. Anschliessend wird die zweite Verzahnung (62) derart bearbeitet, dass die zweite Verzahnung eine Drehwinkellage erhält, die in einer vorbestimmten Beziehung zur ermittelten Referenzdrehwinkellage steht. Ebenfalls offenbart sind eine Messvorrichtung zum Einsatz in einem solchen Verfahren sowie eine damit ausgestattete Werkzeugmaschine.

Method and apparatus for hard finishing modified gears

Die Erfindung betrifft ein Verfahren für die Bearbeitung eines Werkstückes (mittels eines Werkzeuges zur Erzeugung einer Modifikation der Oberflächengeometrie der aktiven Oberfläche des Werkstückes,) insbesondere durch einen Hartfeinbearbeitungsprozess, insbesondere durch Wäizschlelfen oder Honen. Dabei wird mittels gezielter Erzeugung einer Modifikation des Werkzeuges erreicht wird, dass eine Modifikation, insbesondere eine Profilmodifikation oder -welllgkeit, auf der aktiven Oberfläche des damit bearbeiteten Werkstückes erzeugt wird. ((Dabei weist die Modifikation der Oberflächengeometrie des Werkstückes auf der Zahnradflanke im Wälzbild in einer ersten Richtung (G C1 ) des Werkstückes einen konstanten Wert auf, derweil in einer zweiten Richtung (G C2 ) des Werkstückes welche senkrecht zur ersten Richtung verläuft, durch eine Funktion f(x) gegeben ist. Die dazu auf dem Werkstück nötige Modifikation der Oberflächengeometrie weist im Wälzbild in einer ersten Richtung (G C1 ) des Werkzeuges ...

Method for the continuous rolling grinding of pre-toothed workpieces.

Es wird ein Verfahren zum kontinuierlichen Wälzschleifen von vorverzahnten Werkstücken eines Fertigungsloses vorgeschlagen, wobei im Rahmen dieses Verfahrens eine automatische Prozessüberwachung erfolgt. Die Prozessüberwachung ermöglicht eine Früherkennung von Schleifscheibenausbrüchen. Mit einer Wälzschleifmaschine wird eine Mehrzahl von Werkstücken bearbeitet. Dazu werden die Werkstücke auf mindestens einer Werkstückspindel aufgespannt und nacheinander in Wälzeingriff mit einer Schleifscheibe gebracht. Während der Bearbeitung wird mindestens eine Messgrösse überwacht. Aus dieser wird ein Warnindikator für einen Schleifscheibenausbruch ermittelt. Wenn der Warnindikator auf einen Schleifscheibenausbruch hindeutet, wird die Schleifscheibe automatisch untersucht. Dazu wird der Kopfbereich der Schleifscheibe mit einem Abrichtwerkzeug überfahren, und es wird ein Kontaktsignal während des Überfahrens des Kopibereichs ermittelt. Durch Analyse des Kontaktsignals wird ein Ausbruchindikator ermittelt ...

Method for the continuous rolling grinding of pre-toothed workpieces.

Es wird ein Verfahren zum kontinuierlichen Wälzschleifen von vorverzahnten Werkstücken eines Fertigungsloses vorgeschlagen, wobei im Rahmen dieses Verfahrens eine automatische Prozessüberwachung erfolgt. Die Prozessüberwachung ermöglicht eine Früherkennung von Schleifscheibenausbrüchen. Mit einer Wälzschleifmaschine wird eine Mehrzahl von Werkstücken bearbeitet. Dazu werden die Werkstücke auf mindestens einer Werkstückspindel aufgespannt und nacheinander in Wälzeingriff mit einer Schleifscheibe gebracht. Während der Bearbeitung wird mindestens eine Messgrösse überwacht. Aus dieser wird ein Warnindikator für einen Schleifscheibenausbruch ermittelt. Wenn der Warnindikator auf einen Schleifscheibenausbruch hindeutet, wird die Schleifscheibe automatisch untersucht. Dazu wird der Kopfbereich der Schleifscheibe mit einem Abrichtwerkzeug überfahren, und es wird ein Kontaktsignal während des Überfahrens des Kopibereichs ermittelt. Durch Analyse des Kontaktsignals wird ein Ausbruchindikator ermittelt ...

Werkzeugmaschine mit Kalibriervorrichtung zur Kalibrierung eines Einzentriersensors.

Eine Werkzeugmaschine für die Bearbeitung vorverzahnter Werkstücke weist einen Werkstückträger, eine Werkstückspindel mit einem Werkstückspindelgehäuse und einer um eine Werkstückspindelachse (A) rotierbare Werkstückspindelwelle auf. Weiter weist die Werkzeugmaschine einen Einzentriersensor (1) auf, welcher dazu ausgebildet ist, eine Phasenlage von Zähnen eines um die Werkstückspindelachse (A) rotierenden Werkstücks (23) zu ermitteln, ein Kalibrierstück (10), das sich an einem definierten Kalibierort (C M ) relativ zur Werkstückspindel befindet, sowie eine Sensorsteuerung (3), die dazu ausgebildet ist, folgendes Verfahren auszuführen: Bewegen des Einzentriersensors (1) relativ zur Werkstückspindel in eine Kalibrierposition, in der sich der Einzentriersensor (1) beim Kalibrierstück (10) befindet; Ermitteln eines Ansprechverhaltens des Einzentriersensors (1), indem die Sensorsteuerung (3) den Einzentriersensor (1) relativ zum Kalibrierstück (10) bewegt und währenddessen Sensorkalibriersignale ...

Verfahren und Werkzeugmaschinensystem zur Kollisionsprüfung eines Bearbeitungsprozesses, mit Ersatzwerkstück.

Ein Verfahren zur Kollisionsprüfung eines Bearbeitungsprozesses, wobei für den Bearbeitungsprozess ein prozessspezifischer Zyklus vorgesehen ist, während dessen mehrere Bearbeitungskomponenten (B) relativ zueinander mit wenigstens einer Maschinenachse (A, X, Y, Z) auf einer Werkzeugmaschine (2) verfahren werden sollen, wobei die Bearbeitungskomponenten (B) zumindest ein Werkstück und ein Werkzeug umfassen, und zumindest während eines Teils des prozessspezifischen Zyklus das Werkstück um eine Werkstückachse (WSA) und das Werkzeug um eine Werkzeugachse (WZA) rotieren solten, ist dadurch gekennzeichnet, dass im prozessspezifischen Zyklus wenigstens eine Prüfungsposition identifiziert wird, wobei die Prüfungsposition einer mit der wenigstens einen Maschinenachse (A, X, Y, Z) eingestellten Relativposition der Bearbeitungskomponenten (B) entspricht, und dass zur Überprüfung einer jeweiligen Prüfungsposition auf Kollisionen die Relativposition der Bearbeitungskomponenten (B) nachgestellt wird, ...

VERFAHREN UND VORRICHTUNG ZUR ÜBERWACHUNG DES ZUSTANDS EINER VERZAHNMASCHINE.

In einem Verfahren zur Überwachung eines Zustands einer Werkzeugmaschine (1) mit einer Mehrzahl von Maschinenachsen wird in einem Prüfzyklus mindestens ein Teil der Maschinenachsen systematisch betätigt, und es werden zugeordnete Zustandsdaten durch Messungen ermittelt. Auf dieser Basis werden EOL-Daten prognostiziert, die mit einem Geräuschverhalten eines Getriebes, das ein mit der Verzahnmaschine bearbeitetes Werkstück enthält, korrelieren. Offenbart ist auch die umgekehrte Richtung, bei der aus EOL-Daten Zustandsdaten rekonstruiert werden. Ebenfalls sind Vorrichtungen offenbart zur Ausführung mindestens eines Teils der besagten Verfahren.

Machine tool for incorporating gear teeth into the inner side of an annular workpiece

Tool construction and finishing machine

A METHOD FOR CENTERING BETWEEN TWO TEETH the GRINDING STONE Of a GRINDING MACHINE Of GEARS, AND GRINDING MACHINE EQUIPEE FOR the SETTING IN ÓOEUVRE OF THIS PROCESS.

Machine to conform or finish the toothings

Device of setting in catch of two motionless toothed wheels

Numerically controlled gear teeth generator - has separate drive for tool and workpiece spindles with speed-setting planetary gearing

CONTROL SYSTEMS FOR GEAR CUTTING MACHINES

EQUIPMENT FACILITATING ENGAGING ENTERS OF TOOLS EMOUSSEURS-EBARBEURS AND the GEARS

APPAREILLAGE FACILITANT L'ENGRENEMENT ENTRE DES OUTILS EMOUSSEURS-EBARBEURS ET DES ENGRENAGES

L'invention concerne un appareillage facilitant l'engrènement entre des outils émousseurs-ébarbeurs et des engrenages. Selon l'invention, il comprend une crémaillère 3, en prise avec l'engrenage 1 à usiner, un collier 5 solidaire de l'outil 2 émousseur-ébarbeur, une seule tuyère 10 de sortie de l'huile, des moyens 4, 12 pour rapprocher sur la verticale, l'outil et l'engrenage et éloigner la crémaillère et l'engrenage et la butée du collier de l'ustensile. L'invention s'applique notamment à la taille des engrenages. (CF DESSIN DANS BOPI) ...

METHOD OF PRODUCING WORKPIECE HAVING DESIRED GEAR GEOMETRY

A method of producing a workpiece having a desired gear geometry by means of a suitably dressed tool may include: a step of specifying a desired gear geometry of the workpiece; a step of selecting a combination of a dresser and a tool, such that the desired gear geometry of the workpiece can be produced by the selected combination at least within one permitted tolerance; a step of dressing the tool with the dresser in line contact for producing a suitable gear geometry of the tool; and a step of machining the workpiece with the dressed tool for producing the desired gear geometry of the workpiece at least within a permitted tolerance. COPYRIGHT KIPO 2017 ...

Compound mixer and filter for lapping machine

A lapping compound holding tank (60) positionable at least partially below the lapping chamber of a lapping machine. The cylindrical tank is rotatable about its axis and includes a fixed mixer and scraping assembly (80) positioned in the tank. The mixer and scraping assembly provides strong small-scale turbulence or even scraping action very close to the bottom (64) of the tank. The tank configuration enables efficient use of floor space since the tank occupies much of the same area as the lapping chamber of the machine. There are fewer potential accumulation surfaces between the lapping chamber drain and the tank. Cost and complexity of the tank is reduced. The present invention also includes an in-line compound filtration system (120) comprising an inlet section (122), a funnel portion (128) having a tubular portion (130) and an outlet (132), and a removable magnetic unit (134) having a cylindrical magnet (136). The magnetic unit is positioned in the funnel section so that the magnet ...

Cutter for chamfering gears

Slide device for a machine tool

Eine nach Art eines Kreuzschlittens verstellbare Schlittenanordnung für eine Werkzeugmaschine weist eine erhöhte Steifigkeit gegen eine von ihr aufzunehmende Bearbeitungskraft auf, indem erfindungsgemäß ein erster Schlitten (1) gegenüber einer Maschinenbasis (4) längs einer zur Kraftrichtung geneigten ersten Bewegungsbahn und ein mit der Bearbeitungskraft beaufschlagter zweiter Schlitten an dem ersten Schlitten längs einer zur Kraftrichtung orthogonalen zweiten Bewegungsbahn verstellbar ist.

Device for phasing threaded grinding stone

A device for phasing a threaded grinding stone is phased with respect to a workpiece or a disk dresser prior to the engagement of the threaded grinding stone with the workpiece or with the disk dresser during grinding or dressing. In performing this phasing, it is detected, by means of an AE fluid sensor provided to a grinding stone head which rotatably supports the threaded grinding stone, whether the threaded grinding stone has had contact with the workpiece or the disk dresser. Subsequently, on the basis of the phase of the threaded grinding stone at the time when contact was detected, the threaded grinding stone is positioned in a phase where the aforementioned engagement is feasible.

GEAR MACHINING APPARATUS AND GEAR MACHINING CONDITION SETTING DEVICE

A gear machining condition setting device receives a feeding amount determining parameter and a cutting speed determining parameter. A storage unit stores a cutting-in amount calculation formula representing a relation between a cutting-in amount and a characteristic value determined based on a feeding amount and the feeding amount determining parameter. The feeding amount of the hob, corresponding to the cutting-in amount, is computed using the cutting-in amount calculation formula. Further, the storage unit stores data of a constant temperature curve representing a relation between the cutting-in amount and the cutting speed where a cutting edge of the hob is set at a predetermined temperature. Using the data, the cutting speed is computed based on the cutting-in amount and the cutting speed determining parameter with reference to the constant temperature curve. 1. A gear machining condition setting device for outputting a machining condition in cutting a gear workpiece using a hob , the gear machining condition setting device comprising: a feeding amount determining parameter containing a specification of the hob and a specification of the gear workpiece, and', 'a target temperature of a cutting edge of the hob during machining;, 'a parameter receiving unit configured to receive'}a first storage unit configured to store a cutting-in amount calculation formula representing a relation between a computed cutting-in amount per a cutting blade of the hob and a characteristic value determined by the feeding amount determining parameter and a relative feeding amount of the hob with respect to the gear workpiece;a second storage unit configured to store a cutting-in amount upper limit per the cutting blade of the hob preliminarily set by the specification and a material of the gear workpiece;a feeding amount computing unit configured to compute a feeding amount of the hob using the cutting-in amount calculation formula based on a selected cutting-in amount, the selected ...

Rotation processing machine and rotation processing method

A rotation processing machine, including a rotating device that holds and rotates a workpiece; a processing device on which a cutting tool is mounted to process the workpiece; and a turning loader that has grippers arranged about a turning central axis, and that turns so that the grippers sequentially face the rotating device. The turning loader is configured to deliver and receive the workpiece to and from the rotating device by turning with the workpiece being directly or indirectly held by the gripper, and to deliver and receive the cutting tool to and from the processing device by turning with the cutting tool being directly or indirectly held by the gripper.

GEAR GRINDING MACHINE

Provided is a gear grinding machine which can dress a grinding stone while a gear is held attached to the machine regardless of the size of the gear. To this end, the gear grinding machine () engages and mutually rotates a work (W) and the grinding stone () to thereby grind the work (W), wherein the gear grinding machine is equipped with a turning table () which holds the work (W) and rotates around a work rotating shaft (C), and a pivot table () which is pivotably supported around the work rotating shaft (C); and a dresser () which is capable of dressing the grinding stone () is provided on the pivot table (), the pivot table () being pivoted to move the dresser () between a dressing position (D) and a retreat position (D). 1. A gear grinding machine for performing grinding on a gear to be machined by rotating the gear to be machined and a grinding wheel in mesh with each other , characterized in that the gear grinding machine comprises:a rotary table configured to hold the gear to be machined and to rotate about a workpiece rotation axis;grinding wheel moving means for rotatably supporting the grinding wheel and moving the grinding wheel relative to the workpiece rotation axis;a ring-shaped turn table disposed coaxially with the rotary table at a position radially outside the rotary table, and supported turnably about the workpiece rotation axis;dressing means provided on the turn table and having a dresser capable of dressing the grinding wheel; andtable turning means for turning the turn table about the workpiece rotation axis in such a way that the dressing means moves between a dressing position where the dressing means is capable of dressing the grinding wheel supported by the grinding wheel moving means and a retreat position where the dressing means is retreated from the dressing position during the grinding.2. The gear grinding machine according to claim 1 , characterized in that the table turning means turns the turn table about the workpiece rotation ...

METHOD AND APPARATUS FOR HARD FINISHING MODIFIED GEARS

The present disclosure relates to a method for the manufacture of a workpiece having a corrected gear geometry and/or a modified surface structure, in particular by a hard finishing process, in particular generation grinding or honing. Provision is made in this respect that it is achieved by a direct generation of a wobble movement and/or of an eccentricity of the tool that a modification, in particular a profile modification or profile waviness, and/or a defined periodic flank waviness is generated on the active surface of the workpiece machined therewith. 1. A method for the manufacture of a workpiece having a corrected gear geometry and/or a modified surface structure , wherein:it is achieved by a direct generation of a wobble movement and/or of an eccentricity of a tool that a modification is generated on the active surface of the workpiece machined therewith.2. The method in accordance with claim 1 , wherein the modification includes at least one or more of a profile modification or profile waviness claim 1 , and/or a defined periodic flank waviness claim 1 , wherein the manufacture includes a hard finishing process claim 1 , and where a worm grinding wheel width is determined on the manufacture of a grinding worm wheel such that pitch ends of worm pitches at two ends of the grinding worm wheel are arranged at different angle positions at an outer periphery and thus directly cause a defined imbalance.3. The method in accordance with claim 1 , wherein a certain imbalance is directly set on balancing of the grinding tool claim 1 , so that a specific wobble movement and/or eccentricity movement of the grinding wheel is generated by this balancing by which a defined periodic flank waviness is achieved on the active surface of the workpiece ground therewith.4. The method in accordance with claim 1 , wherein the tool generates the eccentricity during dressing and/or profiling claim 1 , and wherein the tool is dressed out-of-round claim 1 , wherein the tool is dressed ...

GEAR CUTTING TOOL, GEAR MACHINING DEVICE, AND GEAR MACHINING METHOD

To provide a gear cutting tool capable of supplying a coolant liquid to an optimum position even when cutting edges are reground. The gear cutting tool includes the tool body having a plurality of blades on an outer peripheral surface thereof and a center hole, and a nozzle provided in the center hole of the tool body so that a fixed position in the tool body is adjustable. The nozzle includes a flow channel which allows supplied coolant liquid to flow into the center hole of the tool body, and discharge the coolant liquid toward the plurality of blades. 1. A gear cutting tool used for machining a gear , comprising:a tool body including a plurality of blades on an outer peripheral surface thereof and a center hole;a nozzle including a flow channel allowing a coolant liquid supplied to the center hole of the tool body to flow therein and discharging the coolant liquid toward the plurality of blades and provided in the center hole of the tool body so that a fixed position thereof in the tool body is adjustable.2. The gear cutting tool according to claim 1 ,wherein the tool body includes a mounting seat formed in a periphery of an opening of the center hole of the tool body,wherein the nozzle includes:a shaft portion fastened in a state of being inserted into the center hole of the tool body, and including a first flow channel extending in an axial direction as part of the flow channel, anda head portion provided at an end of the shaft portion, provided outside the opening of the center hole of the tool body, and including a second flow channel discharging the coolant liquid flowed into the first flow channel radially outward as other part of the flow channel,wherein the gear cutting tool includes a spacer interposed between the mounting seat and the head portion in the axial direction, andwherein the nozzle is provided in the center hole of the tool body so that the fixed position thereof in the tool body is adjustable by the spacer.3. The gear cutting tool according ...

GEAR MACHINING APPARATUS AND MACHINING CONDITION DETERMINATION DEVICE

A gear machining apparatus includes: a hob cutter; at least one processor; and at least one memory having instructions. The instructions, when executed by the at least one processor, cause the gear machining apparatus to perform operations including: performing first chamfering on a first axial end of a gear profile by relatively moving the hob cutter with respect to a workpiece in radial and axial directions of the workpiece; performing, subsequent to the first chamfering, gear profile machining by relatively moving the hob cutter with respect to the workpiece in the axial direction; and performing, subsequent to the gear profile machining, second chamfering on a second axial end of the gear profile by relatively moving the hob cutter with respect to the workpiece in the radial and axial directions. 1. A gear machining apparatus comprising:a hob cutter configured to machine a gear profile on a workpiece;at least one processor; andat least one memory having instructions that, when executed by the at least one processor, cause the gear machining apparatus to perform operations to relatively move the hob cutter and the workpiece while synchronously rotating the hob cutter and the workpiece, performing first chamfering on a first axial end of the gear profile by relatively moving the hob cutter with respect to the workpiece in a radial direction of the workpiece while relatively moving the hob cutter with respect to the workpiece in an axial direction of the workpiece;', 'performing, subsequent to the first chamfering, gear profile machining by relatively moving the hob cutter with respect to the workpiece in the axial direction of the workpiece; and', 'performing, subsequent to the gear profile machining, second chamfering on a second axial end of the gear profile opposite to the first axial end in the axial direction by relatively moving the hob cutter with respect to the workpiece in the radial direction of the workpiece while relatively moving the hob cutter with ...

METHOD OF DRESSING A TOOL

A tool which can be used for gear manufacturing machining of a workpiece may be dressed on a dressing machine, and the dressing may take place with line contact between the dresser and the tool. A specific modification of the surface geometry of the tool is produced by the suitable selection of the position of the dresser with respect to the tool during dressing. The specific modification of the surface geometry of the workpiece is specifiable with regard to various parameters. 1. A method of dressing a tool , which can be used for the gear tooth machining of a workpiece , on a dresser , wherein the dressing takes place with line contact between the dresser and the tool , wherein a specific modification of the surface geometry of the tool is produced by the suitable choice of the position of the dresser to the tool when dressing , wherein the specific modification of the surface geometry of the tool is specifiable at at least three rolling angles , and/or wherein a crowning of the specific modification of the surface geometry of the tool is specifiable; and/or in that the specific modification of the surface geometry of the tool is specifiable at at least two rolling angles and , in addition , an association of a specific radius of the dresser with a specific radius of the tool takes place , and/or wherein a pitch of the specific modification of the surface geometry of the tool is specifiable and , in addition , an association of a specific radius of the dresser with a specific radius of the tool takes place; and/or in that an association of two specific radii of the dresser with two specific radii of the tool takes place; and/or in that the angle of rotation of the tool and the tool width position are varied during dressing to guide the dresser along the tool and at least two further degrees of freedom of the relative position between the dresser and the tool are set independently of one another for influencing the gear tooth geometry produced by the dressing and/ ...

Method for dressing a multithread grinding worm

The present disclosure relates to a method for dressing a multithread grinding worm, in which a flight of the multithread grinding worm is machined by means of a dressing tool. During machining of the multithread grinding worm, one of several flights of the grinding worm is eliminated, so that the number of flights of the grinding worm is reduced, thereby increasing the service life of the dressing tool and reducing the number of dressing tools to be kept in stock.

BLADE SHARPENING SYSTEM

A blade sharpening system may include a sharpening tool for sharpening a workpiece. The system may also include a sharpening fixture having a mounting surface for mounting a workpiece to be sharpened by the sharpening tool. The mounting surface may be disposed on a sled that is movable along a sharpening path that passes under a sharpening implement that may be mounted to a movable arm of the sharpening tool when the arm is in an engaged position. The movement of the sled may be coupled to the movement of the arm such that moving the arm from a disengaged position to the engaged position initiates the sled to move in a first direction along the sharpening path and moving the arm from the engaged position to the disengaged position initiates the sled to move along the sharpening path in a second direction. 1. A blade sharpening system for use with a translatable sharpening implement , the system comprising: a sled having a mounting surface for removably mounting a workpiece to be sharpened,', 'a frame comprising a sled guide configured to guide the sled along a sharpening path, the sled guide comprising one or more rails to which the sled mounts and is thereon guidable along the sharpening path,', 'and', 'a sled drive operable to move the sled along the sharpening path, wherein the sled is configured to position a workpiece mounted to the mounting surface below a sharpening surface of a sharpening implement when the sharpening implement is in an engaged position; and, 'a sharpening fixture comprising'} a drive switch to initiate the sled drive to move the sled along the sharpening path,', 'wherein, when the sharpening implement is translated from a disengaged position to the engaged position, the drive switch initiates the sled drive to move the sled along the sharpening path in a first direction, wherein when the sharpening implement is translated from the engaged position to the disengaged position, the drive switch initiates the sled drive to move the sled along ...

GEAR MACHINING SUPPORT DEVICE AND GEAR MACHINING DEVICE

A gear machining support device supports machining when a tooth of a gear is machined on a workpiece by relatively moving the workpiece and a machining tool while synchronizing rotations of the workpiece and the machining tool around respective center axis lines thereof. The gear machining support device includes: a target modification amount storage unit configured to store target modification amounts of at least two of modification elements of a tooth surface shape of the tooth of the gear, the modification elements including crowning, bias, a helix angle, a pressure angle, and a tooth profile roundness; and a correction amount determination unit configured to determine a correction amount of a machining control element during a machining operation such that the at least two of modification elements approximate the respective target modification amounts stored in the target modification amount storage unit. 1. A gear machining support device that supports machining when a tooth of a gear is machined on a workpiece by relatively moving the workpiece and a machining tool while synchronizing a rotation of the workpiece around a center axis line of the workpiece and a rotation of the machining tool around a center axis line of the machining tool , the gear machining support device comprising:a target modification amount storage unit configured to store target modification amounts of at least two of modification elements of a tooth surface shape of the tooth of the gear, the modification elements comprising crowning, bias, a helix angle, a pressure angle, and a tooth profile roundness; anda correction amount determination unit configured to determine a correction amount of a machining control element during a machining operation such that the at least two of modification elements approximate the respective target modification amounts stored in the target modification amount storage unit.2. The gear machining support device according to claim 1 , further comprising:a ...

Grinding machine for grinding of a profile

A grinding machine for grinding of a profile, comprising a machine bed, wherein a machining device is arranged on the machine bed, wherein the machining device comprises a swivel head which carries a first grinding spindle with a first grinding tool, especially with a roughing grinding tool, and a second grinding spindle with a second grinding tool, especially with a finishing grinding tool, wherein a workpiece carrier being a rotary table is arranged on the machine bed. To allow the production of workpieces with a complex geometry in a high precision in an economical manner the invention proposes that the swivel head further carries at least one third grinding spindle with a third grinding tool, wherein the swivel axle of the swivel head is directed horizontally and the axis of rotation of the rotary table is directed vertically.

Spacer for arbor of machining system, machining system incorporating same, and associated method

A spacer for gear hobbing machine, a gear hobbing machine incorporating same, and an associated method are provided. The spacer includes a bore. One or more adjustment members are carried by the spacer and adjustable into and out of the bore. Adjustment of the adjustment members allows for varying the position of the spacer when mounted on an arbor of the gear hobbing machine.

Method for Detecting And/Or Preventing Grind Burn

The present invention provides a method of detecting and preventing grind burn from developing on a gear. The method includes performing acoustic emission testing while the gear is being ground during a grinding operation. The grinding wheel is evaluated during an eddy current test to detect material buildup on the grinding wheel which could cause grind burn. In addition, the method includes collecting swarf from the gear during the grinding operation and inspecting the swarf for an indication of grind burn. 1. A method of determining whether a grinding wheel is properly dressed before a grinding operation , comprising:placing a probe in contact with the grinding wheel;measuring an induced signal in the grinding wheel with the probe; andcomparing the measured induced signal to a threshold;wherein, if the measured induced signal exceeds the threshold, inferring that the grinding wheel needs to be dressed or replaced.2. The method of claim 1 , further comprising detecting the presence of material buildup on the grinding wheel.3. The method of claim 1 , further comprising inferring the amount of material buildup on the grinding wheel is negligible if the measured induced signal is about 0 millivolts.4. The method of claim 1 , further comprising generating a warning signal if the measured induced signal exceeds the threshold.5. The method of claim 1 , wherein the threshold is a voltage or current.6. The method of claim 1 , wherein the threshold is at least 0.25 millivolts.7. The method of claim 1 , further comprising displaying the measured induced signal on a display monitor.8. The method of claim 7 , wherein if the measured induced signal exceeds the threshold claim 7 , a warning signal is displayed on the display monitor.9. The method of claim 1 , further comprising inferring that the grinding wheel is properly dressed when the measured induced signal is less than the threshold.10. The method of claim 1 , wherein the measuring an induced signal comprises measuring a ...

GEAR MACHINING APPARATUS AND GEAR MACHINING METHOD

A gear machining apparatus creates a gear on a workpiece W by moving a gear cutting tool relatively with respect to the workpiece along the direction of the rotation axis of the workpiece W while synchronously rotating the gear cutting tool and the workpiece. One of a workpiece rotation speed controlling portion and a tool rotation speed controlling portion varies the rotation speed of one of the workpiece and the gear cutting tool and the other one of the workpiece rotation speed controlling portion and the tool rotation speed controlling portion synchronizes the rotation speed of the other one of the workpiece and the gear cutting tool with one of the rotation speed of the workpiece and the gear cutting tool. 1. A gear machining apparatus configured to create a gear in a workpiece by moving a gear cutting tool relative to the workpiece along a direction of a rotation axis of the workpiece while synchronously rotating the cutting tool and the workpiece ,the gear machining apparatus comprising:a workpiece rotation speed controlling portion configured to control a rotation speed of the workpiece, anda tool rotation speed controlling portion configured to control the rotation speed of the gear cutting tool,wherein one of the workpiece rotation speed controlling portion and the tool rotation speed controlling portion varies the rotation speed of one of the workpiece and the gear cutting tool, andthe other one of the workpiece rotation speed controlling portion and the tool rotation speed controlling portion synchronizes the rotation speed of the other one of the workpiece and the gear cutting tool with the rotation speed of the one of the workpiece and the gear cutting tool.2. The gear machining apparatus according to claim 1 , wherein one of the workpiece rotation speed controlling portion and the tool rotation speed controlling portion repeatedly increases and decreases the rotation speed of one of the workpiece and the gear cutting tool.3. The gear machining ...

Tool for Cutting Teeth or for Dressing of a Fine Machining Tool Having a Set of External Teeth

The invention relates to a tool for dressing or cutting teeth of fine machining tools, which tool makes it possible to exactly reproduce, in a simple manner, the required tooth system geometry on the fine machining tool which is to be dressed or in which teeth are to be cut. The tool is annular and has a set of internal teeth, the teeth of which mesh, during the tooth-cutting or dressing operation, with the set of external teeth of the fine machining tool in which teeth are to be cut or which is to be dressed. At the same time, the tool has a central longitudinal axis, which extends through the centre point of the opening surrounded by the tool. According to the invention, the set of internal teeth is now formed on a ring element, which is at most 5 mm thick and is produced from a diamond material. The teeth of the set of internal teeth have cutting edges, by means of which said teeth remove material of the fine tool during the tooth-cutting or dressing machining process. The ring element is supported by a support ring, on which at least one support element associated with the support ring opening of the support ring is provided. The ring element is supported on said support element. The teeth of the set of internal teeth formed on the ring element protrude beyond the edge of the support element facing the support ring opening at least over part of the length of the cutting edges of said teeth in the direction of the central longitudinal axis of the tool. 1. A tool for cutting teeth or dressing of a fine machining tool having a set of external teeth for the fine-machining of workpieces , wherein the tool is annular and has a set of internal teeth , the teeth of which mesh , during the tooth-cutting or dressing operation , with the set of external teeth of the fine machining tool in which teeth are to be cut or which is to be dressed , and wherein the tool has a central longitudinal axis , which extends through the centre point of the opening surrounded by the tool , ...

METHOD OF GRINDING GEARS

A method of grinding the tooth slots of a workpiece with a freshly dressed grinding wheel wherein dual-machining of tooth slots is eliminated. The method comprises grinding the first few slots of a gear at a corrected depth amount which accounts for the rapid wear and other conditions of the freshly dressed grinding wheel wherein for a first number of tooth slots (e.g. 1, 2, 3 or more), the grinding wheel is fed-in relative to the workpiece by the corrected depth amount. 1. A method of grinding a gear with a freshly-dressed grinding wheel , said gear having a plurality of tooth slots , said method comprising:grinding each of said plurality of tooth slots,wherein for an initial number of said plurality of tooth slots ground, inclusive of a first slot ground, the grinding wheel is fed into each of said tooth slots of said initial number by a respective correction amount so as to compensate for material removal effects of said grinding wheel due to said grinding wheel being freshly-dressed,wherein none of said plurality of tooth slots are reground.2. The method of wherein a tooth slot immediately subsequent to said initial number is ground with no correction amount.3. The method of further comprising grinding the remainder of said plurality of tooth slots wherein the grinding of each remaining tooth slot includes a compensation amount for each respective remaining tooth slots based upon normal continual wear of the grinding wheel.4. The method of wherein said initial number is 1 claim 1 , 2 or 3.5. The method of wherein said grinding wheel is a cup-shaped grinding wheel.6. The method of wherein said grinding wheel is a disc-shaped grinding wheel.7. The method of wherein said gear is a bevel gear.8. The method of wherein said gear is a cylindrical gear.9. The method of wherein said respective correction amount for each of said tooth slots of said initial number is determined from a master ground workpiece.10. The method of wherein said respective correction amount for ...

Method for Detecting And/Or Preventing Grind Burn

The present invention provides a method of detecting and preventing grind burn from developing on a gear. The method includes performing acoustic emission testing while the gear is being ground during a grinding operation. The grinding wheel is evaluated during an eddy current test to detect material buildup on the grinding wheel which could cause grind burn. In addition, the method includes collecting swarf from the gear during the grinding operation and inspecting the swarf for an indication of grind burn. 1. A method of determining whether a grinding wheel is properly dressed before a grinding operation , comprising:placing a probe in contact with the grinding wheel;measuring an induced signal in the grinding wheel with the probe; andcomparing the measured induced signal to a threshold;wherein, if the measured induced signal exceeds the threshold, inferring that the grinding wheel needs to be dressed or replaced.2. The method of claim 1 , further comprising detecting the presence of material buildup on the grinding wheel.3. The method of claim 1 , further comprising inferring the amount of material buildup on the grinding wheel is negligible if the measured induced signal is about 0 millivolts.4. The method of claim 1 , further comprising generating a warning signal if the measured induced signal exceeds the threshold.5. The method of claim 1 , wherein the threshold is a voltage or current.6. The method of claim 1 , wherein the threshold is at least 0.25 millivolts.7. The method of claim 1 , further comprising displaying the measured induced signal on a display monitor.8. The method of claim 7 , wherein if the measured induced signal exceeds the threshold claim 7 , a warning signal is displayed on the display monitor.9. The method of claim 1 , further comprising inferring that the grinding wheel is properly dressed when the measured induced signal is less than the threshold.10. The method of claim 1 , wherein the measuring an induced signal comprises measuring a ...

METHOD AND AUTOMATIC MACHINE FOR MACHINING A GEAR WHEEL

The axis of rotation of a gear wheel subjected to thermal treatment and comprising at least one intermediate crown wheel and a pair of lateral tubular hubs arranged on opposite sides of the crown wheel is restored automatically by coupling a first of the hubs to a head rotating about a fixed axis of own rotation axis, displacing the other hub in a direction transverse to the fixed axis until both of the hubs and the crown wheel are brought into positions substantially sharing the fixed axis and providing on each of the hubs a respective centring surface sharing the fixed axis without uncoupling the first hub from the rotating head and keeping the gear wheel in a vertical and angularly fixed position. 1. A method for machining a gear wheel comprising at least one outer crown wheel , a first hub and a second hub opposed to each other and projecting in cantilever fashion from opposite axial sides of said crown wheel , the method comprising the steps of: coupling said first hub to a motor-driven rotating head having an own fixed vertical axis of rotation; displacing said second hub in a direction transverse to said fixed axis; bringing said hubs into a position substantially sharing said fixed axis; and machining the hubs , providing on each of said hubs a respective inner centring surface sharing said fixed axis; the steps of bringing said hubs into a position substantially sharing said fixed axis and of machining the hubs themselves to obtain said inner centring surfaces are obtained without uncoupling said first hub from said motor-driven rotating head.2. A method according to claim 1 , characterized in that the steps of bringing said hubs into a position substantially sharing said fixed axis and of machining the hubs themselves to obtain said centring surface are performed claim 1 , keeping said axis in a vertical position.3. A method according to claim 1 , characterized in that said centring surfaces are provided claim 1 , keeping said gear wheel in an angularly ...

CONTROL PANEL FOR A MACHINE TOOL

A control panel for a machine tool has a housing (). The housing comprises a housing base part () and a housing front part (). A display () and a control element panel () are attached to the front part of the housing. In the region of the housing bottom side, the housing front part is connected to the housing base part by miter hinges so that it can be swiveled to provide access to the interior of the housing. Fold-out supports () make it possible to use an alphanumeric keyboard () for maintenance work. Indentations () on both sides of the housing rear allow the housing to be easily grasped. Control elements () are arranged in the indentations. 1. A control panel for a machine tool , comprising:a housing defining a housing interior and defining a housing front, a housing rear, two lateral housing sides, a housing bottom side, and a housing top side;a display located on the housing front; anda control element panel, also located on the housing front, with control elements for the machine tool,wherein the housing rear has indentations on both sides along the lateral housing sides, the housing having a reduced thickness where the indentations are located in order to facilitate lateral gripping around the housing.2. The control panel of claim 1 , comprising at least one further control element arranged in at least one of the indentations.3. The control panel of claim 2 , wherein the further control element points in a direction opposite to the control element panel.4. The control panel of claim 1 , wherein the control element panel is arranged below the display and is inclined towards the display.5. The control panel of claim 5 , wherein the mounting bracket comprises a swivel bearing which allows pivotal movement of the control panel about the vertical mounting axis.6. The control panel of claim 5 , comprising at least one connector housing for an electrical plug connection arranged on the housing rear laterally offset from the vertical mounting axis.8. A control panel ...

PROFILE GAUGE, MEASURING DEVICE EQUIPPED WITH THE PROFILE GAUGE, AND MEASUREMENT METHOD

A profile gauge that embodies a measurement geometry for a tool that has a toothed profile designed in particular for the skiving of toothed work pieces, wherein the profile gauge serves to determine at least one measurement quantity which can be used for a machining process, specifically a skiving process, that is to be performed with the tool and wherein, in a phase of said process, the toothed profile of the work piece that is to be generated is formed by a meshing engagement with the teeth of the tool, wherein the profile gauge is distinguished by having a toothed profile section with which, for determining the measurement quantity, the teeth of the tool are brought into a meshing engagement that corresponds to the tooth engagement between the tool and the work piece during the profile-forming phase. The invention further concerns a measuring device and a measurement method. 11. Profile gauge () embodying a measurement geometry for a toothed tool with geometrically defined cutting edges that is designed for the machining of toothed profiles on work pieces through rolling engagement of the tool with the work piece , wherein the profile gauge serves for the determination of at least one measurement quantity for use in a machining process , that is to be performed with the tool ,wherein during a phase of said machining process the toothed profile to be generated on the work piece is formed by a meshing engagement with the toothed profile of the tool,{'b': 4', '6, 'said profile gauge being characterized by a toothed profile section (, ) with which, for determining the measurement quantity, the teeth of the tool are brought into a meshing engagement that is representative of the tooth engagement between the tool and the work piece during the profile-forming phase.'}2. Profile gauge according to claim 1 , wherein the toothed profile section of the profile gauge duplicates at least a section of the tooth flanks of the toothed profile of the work piece.3. Profile gauge ...

METHOD AND APPARATUS FOR GEAR SKIVING

The present disclosure relates to a method for gear skiving a workpiece, wherein: in a first step, the geometry of a tool, in particular of a skiving wheel, is measured for the machining of the workpiece in a state clamped in an apparatus for gear skiving machining; and in a subsequent further step, machining kinematics are determined for the gear skiving in dependence on the measured geometry of the tool characterized in that the absolute location of a cutting edge of the tool in the apparatus is determined in the first step. 1. A method for gear skiving a workpiece , wherein:in a first step, the geometry of a tool is measured for the machining of the workpiece in a state clamped in an apparatus for gear skiving machining; andin a subsequent further step, machining kinematics are determined for the gear skiving in dependence on the measured geometry of the tool, wherein the absolute location of a cutting edge of the tool in the apparatus is determined in the first step.2. The method in accordance with claim 1 , wherein a spatial extent of the cutting edge is additionally determined beside a determination of the location in the first step.3. The method in accordance with claim 1 , wherein the tool is a skiving wheel and one or more of the following geometrical parameters are measured at the skiving wheel:a) an outside diameter of the skiving wheel at one or more axial positions of the skiving wheel;b) a tooth thickness of the skiving wheel at one or more axial positions of the skiving wheel;c) a profile line of the skiving wheel;d) a tooth trace of the skiving wheel;e) an extent of the cutting edge of the skiving wheel;f) a location of the rake face and/or its orientation, in particular its rake angle and step angle; and/org) the location of the tool, preferably a rotational position of the skiving wheel, preferably the rotational position of one or more teeth on the skiving wheel.4. The method in accordance with claim 1 , wherein the machining kinematics are ...

METHOD OF PRODUCING A WORKPIECE HAVING A MODIFIED GEARING GEOMETRY

A method of producing a workpiece having a modified gearing geometry by a generating method includes generating machining the workpiece in at least one machining stroke with a tool having a modified gearing geometry and a topological modification. Provision is made that the contact path with the workpiece is not shifted on the tool during the machining stroke. In one example, a cylindrical workpiece is machined by an axial generating method. In another example, a conical workpiece is machined by a diagonal generating method, and the diagonal ratio is selected such that the contact path does not shift on the tool during the machining stroke. 1. A method of producing a workpiece having a modified gearing geometry by a generating method , wherein the workpiece is generating machined in at least one machining stroke by a tool having a modified gearing geometry , with the tool having a topological modification ,wherein the contact path with the workpiece is not shifted on the tool during the machining stroke.2. The method in accordance with claim 1 , wherein a cylindrical workpiece is machined and the machining takes place by an axial generating method.3. The method in accordance with claim 1 , wherein a conical workpiece is machined and the machining takes place by a diagonal generating method claim 1 , with the diagonal ratio being selected such that the contact path on the tool does not shift during the machining stroke; wherein the tool has a cylindrical basic form and the machining takes place on one flank; or wherein the tool has a conical basic shape and the machining takes place on a right flank and a left flank claim 1 , with a conical angle of the tool and the diagonal ratio further selected such that the contact path does not shift on the right and left flanks during two-flank machining.4. The method in accordance with claim 1 , wherein the topological modification of the surface geometry of the tool has a constant value in the generating pattern at least ...

GEAR MANUFACTURING DEVICE AND METHOD FOR MANUFACTURING GEAR

A gear manufacturing device includes a control unit for synchronously rotating a work rotating about a work axis and a cutter rotating about a cutter axis, the work axis and the cutter axis being skew to each other, the control unit relatively moving the cutter and the work in an axial direction of the work with a predetermined cutting depth, and a correction control portion executing at least one of a position correction and a phase correction when an amplitude value of a vibration detected by a vibration sensor during a machining reaches equal to or greater than a set value, the position correction for correcting a relative positional relationship in a direction to correct the cutting depth, the phase correction for correcting a relative phase in a direction to correct an unbalance cutting that is otherwise to be applied on a pair of tooth surfaces formed on the work. 1. A gear manufacturing device , comprising:a control unit for synchronously rotating a work rotatably supported about a work axis and a cutter formed in a gear shape and rotatably supported about a cutter axis, the work axis and the cutter axis being skew to each other, the control unit relatively moving the cutter and the work in an axial direction of the work with a predetermined cutting depth;a vibration sensor detecting a vibration of the work and the cutter; anda correction control portion executing at least one of a position correction and a phase correction when an amplitude value of a vibration detected by the vibration sensor during a machining reaches equal to or greater than a set value, the position correction for correcting a relative positional relationship of the cutter and the work in a direction to correct the cutting depth, the phase correction for correcting a relative phase of the cutter and the work in a direction to correct an unbalance cutting that is otherwise to be applied on a pair of tooth surfaces that structure a tooth portion formed on the work.2. The gear manufacturing ...

Bevel gear cutting machine for chamfering bevel gear tooth edges and method for chamfering the tooth edges of bevel gears

Bevel gear cutting machines having multiple numerically-controllable axes, a workpiece spindle, which accommodates a bevel gear coaxially in relation to a workpiece spindle axis, and a deburring device having a deburring spindle for accommodating at least one first deburring tool. The bevel gear cutting machines may chamfer tooth edges of the bevel gear in two passes, where, in a first pass, first chamfers are provided on the tooth edges by using the first deburring tool, and, in a second pass, second chamfers are provided in the region of the first chamfers by using the first deburring tool or by using a second deburring tool in a continuous procedure, in which the bevel gear and the first or second deburring tool rotate in a coupled manner while engaged with one another.

Method for deburring a gear blank

A method for deburring a gear blank includes correcting chamfer sizes, chamfer shapes and chamfer symmetry at tooth edges which were produced with a deburring cutter with a strongly asymmetric tooth shape (ChamferCut). The chamfers are semi-automatically corrected by coupling the movement of several axes of a gear cutting machine, including a workpiece axis of rotation C 1 , spatial shifting axes of a machine column Z 1 , X 1 , and Y 1 , and a V 1 -axis corresponding to the tool axis. The method further includes specifying a correction in the axial direction in one of the axes Z 1 , V 1 and C 1 , and calculating the correction amount of further axes by the controller depending on the specified axis.

METHOD FOR AUTOMATIC PROCESS MONITORING IN CONTINUOUS GENERATION GRINDING

A method for automatic process monitoring during continuous generating grinding of pre-toothed workpieces, which permit early detection of grinding wheel breakouts. A generating grinding machine is used to machine multiple workpieces by clamping them onto at least one workpiece spindle and successively moving them into generating engagement with a grinding wheel. At least one measured variable is monitored during the machining to indicate if a grinding wheel breakout exists. If a grinding wheel breakout is indicated, the grinding wheel is examined automatically by moving a dressing tool over the tip region of the grinding wheel and generating a contact signal. A breakout is determined by analyzing the contact signal and, if present, the grinding wheel is dressed as often as necessary in order to eliminate the grinding wheel breakout. Alternatively, the checking of the grinding wheel is carried out directly at the first dressing stroke.

PLUNGE DRESSING METHODS AND SYSTEMS FOR PRODUCING A GRINDING WHEEL FOR SPIRAL-BEVEL AND HYPOID GEAR MANUFACTURE

Method and systems are disclosed for plunge dressing of a spiral bevel gear-grinding wheel. The method includes providing a dressing roll for plunge dressing of a spiral bevel gear-grinding wheel, the dressing roll including: a body portion having an axis of rotation, a radial extent about said axis, and an axial extent, the body portion integrally comprising: a base portion configured for connection to a drive motor, a first cutting surface, and a second cutting surface, and plunge dressing of the spiral bevel gear-grinding wheel based upon the interference calculation. Some embodiments include determining whether interference will occur between the grinding wheel and the dressing roll before plunge dressing. 1. Method for plunge dressing of a spiral bevel gear-grinding wheel , the method comprising: a body portion having an axis of rotation, a radial extent about said axis, and an axial extent, the body portion integrally comprising:', 'a base portion configured for connection to a drive motor,', 'a first cutting surface, and', 'a second cutting surface; and, 'providing a dressing roll for plunge dressing of a spiral bevel gear-grinding wheel, the dressing roll includingplunge dressing of the spiral bevel gear-grinding wheel.2. The method of claim 1 , further comprising:determining whether interference will occur between the grinding wheel and the dressing roll.3. The method of claim 1 , wherein the second cutting surface includes a radial extent less than a radial extent of the first cutting surface.4. The method of claim 1 , wherein plunge dressing of the spiral bevel gear-grinding wheel is executed by:moving the dressing roll and grinding wheel together so that line contact is made between a portion of the radial extent of the dressing roll and a convex surface of the grinding wheel,releasing the plunge,moving the dressing roll and grinding wheel together so that line contact is made between a portion of the radial extent of the dressing roll and a concave ...

METHOD FOR PRODUCING OR MACHINING TOOTHING

The invention relates to a method for producing or machining a toothing () on a workpiece (), in which method the workpiece, which is rotationally driven about its axis of rotation (C), is brought into rolling machining engagement with tool toothing () rotating about an axis of rotation (C) which is, in particular, at a non-null crossed-axes angle to the axis of rotation of the workpiece, wherein the machining operation is automatically monitored, using sensors to record same automatically, already at the machine operation stage for a recurring irregularity originating from tool wear (), in particular higher wear of at least one tool tooth () compared to other tool teeth. 12352. A method of producing or machining toothing () on a workpiece () , in which method the workpiece , which is rotationally driven about its axis of rotation (C) , is brought into rolling machining engagement with tool toothing () rotating about an axis of rotation (C) which is at a non-null crossed-axes angle (Σ) to the axis of rotation of the workpiece ,characterized in that{'b': '52', 'the machining operation is automatically monitored, using sensors to record same, already at the machine operation stage for a recurring irregularity originating from tool wear () compared to other tool teeth.'}23. The method according to claim 1 , in which the monitoring includes periodicities on time scales which are greater than the product of the number of teeth (Z) and the rotational speed (n) of the workpiece ().3. The method according to claim 1 , in which a time signal generated by the sensory detection is subjected to a transformation in the complementary space.4. The method according to claim 3 , in which the monitoring includes a monitoring window superimposed on the transformed signal.5. The method according to in which the monitoring generates a warning signal if the irregularity exceeds a predetermined level.6. The method according to claim 5 , in which this exceedance is determined on the basis ...

ACTIVE TORQUE METHOD OF LAPPING GEARS

Method and apparatus for lapping gears which includes an active torque system to substantially improve the lapping process with respect to run-out and other longer-term motion transmission errors without compromising tooth-to-tooth performance. Motion transmission error measurements provide the basis for calculating a corrective active torque component which is combined with conventional process torque to reduce or eliminate part run-out. 1. A method of lapping gears comprising rolling a first member of a gear set together in mesh with a second member of the gear set with an amount of torque between said first and second members while applying an abrasive mixture to the gear set members , said method further comprising:measuring motion-transmission-error of the gear-set in real time,obtaining a real-time measurement of run-out from the measured motion-transmission-error,determining a corrective torque component at one or more predetermined frequencies,introducing the corrective torque component for reducing the run-outlapping said gear set with a torque defined by said amount of torque adjusted in accordance with said corrective torque component.2. The method of wherein said gear set members each comprise teeth having a drive side and a coast side and wherein said lapping method is applied to one of said drive side and said coast side and then applied to the other of said drive side and said coast side.3. The method of wherein said real-time measurement of run-out excludes run-out due to workholding equipment releasably clamping the gear set.4. The method of wherein said first and second gear set members each comprise teeth having tooth surfaces which contact one another at a tooth surface contact position during said lapping and wherein said tooth surface contact position is moved to a plurality of locations on the tooth surface during said lapping claim 1 ,said steps of measuring, obtaining, determining and introducing being repeated for each of said plurality of ...

Method and Device for Precision Machining of Toothed and Hardened Work Wheels

A method for machining toothed and hardened work wheels, includes: mounting a work wheel that is hardened and pre-toothed with an allowance onto a workpiece spindle; removing at least 50% of the allowance by means of gear skiving with a skiving wheel that is rotatably driven by a tool spindle; precision-machining the work wheel in unchanged tension by means of a honing wheel. The forward movement occurs during gear skiving in the extension direction of the toothing. The delivery of the workpiece that is moved in an oscillating manner in the extension direction of the toothing occurs during honing in the radial direction. The skiving wheel and the honing wheel are driven by a common tool spindle. A device for carrying out the method includes a workpiece spindle, which is driven to rotate, and a tool spindle, which carries a combination tool having a skiving wheel and a honing wheel. 115.-. (canceled)17. The method according to claim 16 , wherein the skiving wheel is a ceramic or hard metal skiving wheel claim 16 , or is made of another hard material.18. The method according to claim 16 , wherein the honing wheel is a ceramically bonded claim 16 , dressable tool.19. The method according to claim 16 , wherein the gear-skiving machining takes place in a single step.20. The method according to claim 16 , wherein the honing wheel is carried by the tool spindle and is dressed by means of a dressing tool claim 16 , which is associated with the device and is carried by the workpiece spindle.21. A device for carrying out the method claim 16 , comprising:a workpiece spindle that is configured to be driven to rotate, the workpiece spindle having a chuck for chucking a work wheel to be machined,a tool spindle that is configured to be driven to rotate in synchronization with the workpiece spindle, the tool spindle holding a skiving wheel and a honing wheel, and{'sub': H', 'S, 'a programmed electronic control unit controlling a rotational movement of the tool spindle and that of ...

TOOTH FLANK MACHINING DEVICE AND GEAR MANUFACTURING METHOD

A tooth flank machining device includes a helical teeth grinding wheel, a position adjusting unit] capable of moving a relative position of a rotational axis of the helical teeth grinding wheel to a rotational axis of a work gear, and a controlling unit having a relative position controller activating the position adjusting unit to adjust the relative position of the rotational axis of the helical teeth grinding wheel to the rotational axis of the work gear so that the helical teeth grinding wheel engages the work gear with a grinding wheel tooth flank of the helical teeth grinding wheel abutting on only one of work tooth flanks forming a tooth of the work gear, a grinding wheel rotating unit controller activating a grinding wheel rotating unit, and a torque controlling unit controller activating a rotational torque controlling unit to adjust rotational torque within a predetermined range. 1. A tooth flank machining device comprising:a helical teeth grinding wheel supported so as to be rotatable about a rotational axis;a work gear supporting unit supporting a work gear so as to be rotatable about a rotational axis;a position adjusting unit capable of moving a relative position of the rotational axis of the helical teeth grinding wheel to the rotational axis of the work gear;a grinding wheel rotating unit rotating the helical teeth grinding wheel;a rotational torque controlling unit controlling rotational torque of the work gear; anda controlling unit having a relative position controller activating the position adjusting unit to adjust the relative position of the rotational axis of the helical teeth grinding wheel to the rotational axis of the work gear so that the helical teeth grinding wheel engages the work gear with a grinding wheel tooth flank of the helical teeth grinding wheel abutting on only one of work tooth flanks forming a tooth of the work gear, a grinding wheel rotating unit controller activating the grinding wheel rotating unit, and a torque ...

METHOD AND APPARATUS FOR HARD FINISHING MODIFIED GEARS

The present disclosure relates to generating a modified gear flank geometry on an active surface of the workpiece by generation grinding or honing. In at least one example, the modified gear flank geometry of the workpiece may be generated on the active surface of the workpiece by variation of an engagement depth of a tool into the workpiece in dependence on an angle of rotation of the tool. Additionally, the workpiece may comprise a cylindrical spur gear, a helical gear, a spherical gear, or a conical gear. Further, in one or more examples, the modified gear flank geometry of the workpiece includes at least one of a profile waviness or a defined periodic flank waviness. 1. A method for manufacturing a workpiece , comprising:generating a modified gear flank geometry on an active surface of the workpiece by generation grinding or honing,wherein the modified gear flank geometry of the workpiece is generated on the active surface of the workpiece by variation of an engagement depth of a tool into the workpiece in dependence on an angle of rotation of the tool,wherein the workpiece comprises a cylindrical spur gear, a helical gear, a spherical gear, or a conical gear, andwherein the modified gear flank geometry of the workpiece includes at least one of a profile waviness or a defined periodic flank waviness.2. The method of claim 1 , wherein the engagement depth is varied periodically.3. The method of claim 1 , wherein modifications generated by the method are used to compensate unwanted deviations and/or waviness of a surface of the workpiece.4. The method of claim 1 , wherein the modified gear flank geometry of the workpiece has a constant value at least locally in a first direction of the workpiece and is further given by a predefined function f(x) in a second direction of the workpiece which extends perpendicular to the first direction of the workpiece.5. The method of claim 4 , wherein the variation of the engagement depth of the tool into the workpiece in ...

GEAR MACHINING DEVICE WITH CENTERING DEVICE

The invention relates to a device for machining workpieces with precut teeth; having a workpiece support and at least one workpiece spindle arranged on the workpiece support for clamping a workpiece (). A centering device () for the workpieces comprises a probe holder () with a centering probe (), which operates in a contactless manner, and a base element (). The probe holder is connected to the base element such that the probe holder has a variable radial distance to the workpiece spindle axis. The base element is designed as a slide which can be moved relative to the workpiece support. A linear guide for the base element allows a movement of the base element relative to the workpiece support. An adjustment drive for the centering device can be arranged above the centering device on a backrest of the workpiece support. 1. A machine for machining workpieces with pre-machined teeth , comprising:a workpiece support;at least one workpiece spindle for the chucking of a workpiece, the workpiece spindle being arranged on the workpiece support and being adapted to be driven in rotation about a workpiece spindle axis;a meshing device, the meshing device comprising a base element and a probe holder with a meshing probe for contactless operation, the probe holder being connected to the base element such that the probe holder has a variable radial spacing to the workpiece spindle axis,the base element being formed as a slide which is movable relative to the workpiece support; anda linear guide for the base element so as to permit a displacement of the base element relative to the workpiece support parallel to the workpiece spindle axis.2. The machine as claimed in claim 1 , wherein the machine comprises a first adjustment drive claim 1 , for displacing the base element parallel to the workpiece spindle axis claim 1 , and/or a second adjustment drive claim 1 , for effecting a change of the radial spacing of the probe holder to the workpiece spindle axis.3. The machine as ...

Method and Device for Forming Teeth in a Workpiece Gear with Reduced Flank Line Shape Error

A method for producing a toothed workpiece gear, wherein the workpiece gear is clamped or fastened to a workpiece spindle, and a cutting tool having cutting teeth is clamped or fastened to a tool spindle. The tool spindle and the workpiece spindle are rotationally driven at a coupling ratio of the angles of rotation thereof having a periodic non-linearity or an axial distance from each other that changes periodically. The cutting teeth machine forms left and right tooth flanks of the teeth of the workpiece gear using left and right cutting edges in a chip-removing manner. A radial run-out error or a pitch error of the cutting tool is determined. The flank line shape errors of the right and left tooth flank resulting from the radial run-out error or the pitch error are reduced by the periodic non-linearity of the coupling ratio or the periodic change in the axial distance. 1. A method for producing a toothed workpiece gear comprising:clamping or fastening a workpiece gear to a workpiece spindle;clamping or fastening a cutting tool having cutting teeth to a tool spindle;rotationally driving the tool spindle and the workpiece spindle at a coupling ratio of at least one angle of rotation thereof having a periodic non-linearity or at an axial distance from each other that changes periodically;using a cutting teeth machine to form a left and a right tooth flank of at least one tooth of the workpiece gear by means of a left and a right cutting edges in a chip-removing manner;determining a radial run-out error or a pitch error of the cutting tool before a workpiece is machined;reducing at least one flank line shape error of the right or left tooth flank resulting from the radial run-out error or the pitch error by means of the periodic non-linearity of the coupling ratio or by means of the periodic change in the axial distance; andmeasuring a position of the left and right cutting edges of a cutting wheel clamped onto the workpiece spindle and the left and right tooth ...

MACHINE TOOL

A machine tool that generates internal teeth or external teeth on a cylindrical workpiece includes a workpiece holder, a column which is relatively movable to the workpiece holder, a rotary main spindle which is rotatable with respect to the column, a working tool which is held by the rotary main spindle, and a phase detecting unit which detects a phase of the working tool with respect to the rotary main spindle. The working tool includes a cutter portion which has cutters, a holder portion, and a detected portion which is formed on the holder portion. The phase detecting unit includes a detecting section which detects the detected portion, and a calculating section which calculates a phase angle of the detected portion with respect to a reference position of the rotary main spindle, based on a result detected by the detecting section. 1. A machine tool that generates internal teeth or external teeth on a cylindrical workpiece , the machine tool comprising:a workpiece holder which is configured to rotatably hold the workpiece;a column which is provided to be relatively movable with respect to the workpiece holder;a rotary main spindle which is provided to be rotatable with respect to the column;a working tool which is held by the rotary main spindle; anda phase detecting unit which is configured to detect a phase of the working tool with respect to the rotary main spindle, a cutter portion which has a plurality of cutters for cutting the workpiece;', 'a holder portion which is provided to be integrally rotatable with the cutter portion, and which is detachably mounted on the rotary main spindle; and', 'a detected portion which is formed on the holder portion, and, 'wherein the working tool includes a detecting section which is configured to detect the detected portion; and', 'a calculating section which is configured to calculate a phase angle of the detected portion with respect to a reference position of the rotary main spindle, based on a result detected by the ...

Method and apparatus for monitoring a bar blade chucking and/or a blade slot of a bar blade cutter head for bevel gear production

Method for monitoring a bar blade chucking and/or a blade slot of a bar blade cutter head for bevel gear production, having the following method steps: providing a main body ( 26 ) of a bar blade cutter head ( 4 ), wherein the main body ( 26 ) comprises blade slots ( 30 ) for accommodating bar blades ( 10 ), and wherein a component ( 10 ), such as a bar blade ( 10 ), a test specimen, or the like, is chucked in a detachable and replaceable manner in at least one blade slot ( 30 ) of the main body ( 26 ) of the bar blade cutter head ( 4 ); exciting oscillations of the component ( 10 ); measuring the displacement and/or velocity and/or acceleration of the component ( 10 ); analyzing the measurement.

Gear machining device and gear machining method

To provide a gear machining device and a gear machining method which achieve machining of tooth flanks having different torsion angles with high degree of accuracy. In a gear machining device, a side surface of a tooth of a gear includes a first tooth flank and a second tooth flank having a different torsion angle from the first tooth flank, a cutting blade of a machining tool has a blade traces having a torsion angle determined based on a torsion angle of the second tooth flank and an intersection angle between a rotation axis of a workpiece and a rotation axis of the machining tool so as to allow the second tooth flank to be machined on the pre-machined first tooth flank.

TOOLS WITH REMOVABLE INFORMATION DEVICE

A removable assembly () comprising an information holding unit (). The removable assembly is positionable in a material object (), such as a tool, tool component or part, machine, machine component or part, device, etc., and can be removed therefrom by fluid pressure whereby the material object can be subjected to processing that would otherwise cause damage to, or destroy, the information holding unit (). 1. A material object having a removable assembly comprising an information holding unit wherein said removable assembly is positionable in said material object ,said removable assembly being removable from said material object by fluid pressure whereby said material object can be subjected to processing having conditions that would otherwise cause damage to, or destroy, said information holding unit.2. The material object of further comprising a first opening in which said removable assembly is positionable claim 1 , and a second opening comprising an inlet for said fluid pressure claim 1 , said first opening and said second opening being in fluid communication with one another.3. The material object of wherein said removable assembly further comprises a carriage.4. The material object of wherein said information holding unit is located within said carriage.5. The material object of wherein said removable assembly further comprises a seal.6. The material object of wherein said information holding unit comprises a radio frequency identification device.7. The material object of comprising a tool for producing gears.8. The material object of comprising a hobbing tool.9. The material object of wherein said hobbing tool includes a shank claim 8 , wherein said removable assembly is positionable in and is removable from said shank.10. The material object of comprising a shaper cutter.11. The material object of wherein said shaper cutter comprises a tool body having an outer surface claim 10 , wherein said removable assembly is positionable in and is removable from said ...

APPARATUS FOR THE LAPPING OR TESTING OF GEARS

An apparatus including a first spindle group for chucking a first gear, whereby the first gear is mountable on the first spindle group so that it is rotatable, and a second spindle group for chucking a second gear, whereby the second gear is mountable on the second spindle group so that it is rotatable. The apparatus further defining a first linear axis oriented to perform a first linear displacement of the first spindle group relative to the second spindle group; a second linear axis oriented to perform a second linear displacement of the first spindle group relative to the second spindle group; and at least one of a swivel axis oriented to perform pivoting of the first spindle group thereabout, and a swivel axis oriented to perform pivoting of the second spindle group thereabout. 1. An apparatus for the lapping or testing of gears , comprising:a first spindle group for chucking a first gear, whereby the first gear is mountable on the first spindle group so that it is rotatable about a first axis of rotation;a second spindle group for chucking a second gear, whereby the second gear is mountable on the second spindle group so that it is rotatable about a second axis of rotation;the apparatus defining a first linear axis oriented to perform a first linear displacement of the first spindle group with the first gear relative to the second spindle group with the second gear; andfurther defining a second linear axis oriented to perform a second linear displacement of the first spindle group with the first gear relative to the second spindle group with the second gear;wherein the apparatus further defines at least one of:a swivel axis oriented to perform pivoting of the first spindle group with the first gear thereabout; anda swivel axis oriented to perform pivoting of the second spindle group with the second gear thereabout.2. An apparatus according to claim 1 , wherein the apparatus defines the swivel axis oriented to perform pivoting of the first spindle group with the ...

Method for measuring and evaluating gear precision

The invention discloses a method for measuring and evaluating gear precision. The method includes steps of scanning a tested gear and building up an actual model of the tested gear via scanned data; overlapping the actual model of the tested gear with a standard 3D model; selecting a section of the overlapped model to compare; judging if the point on the actual model section exceeds a tolerance zone selected on the actual model. The method makes the measurement data of the gear direct, visible, simple and easily-understood, and needs not too professional technological background; the method needs not professional measuring device of the gear so that the investment to professional instruments can be reduced; the data information is comprehensive, and every data characteristic of the gear face can be completely controlled; the tested data can be directly read to design or use in analysis software; the efficiency is high and the method can be used for online measurement of gear spare parts in volume production, thus the product quality is easy to manage; moreover, the method can be applicable to the data systematic management of the gear product, tracking and analysis of complex data. 1. A method for measuring and evaluating gear precision , which is characterized by including the steps of:a) scanning a tested gear and building up an actual model of the tested gear via scanned data;b) overlapping the actual model of the tested gear with a standard 3D model;c) selecting a section of the overlapped model to compare;d) judging if the point on the actual model section exceeds a tolerance zone selected on the actual model.2. The method according to claim 1 , which is characterized in that the tested gear is performed with circumferential scanning claim 1 , face-line scanning or holographic data scanning in step a).3. The method according to claim 1 , which is characterized in that in step b) claim 1 , the overlapping is performed with axis of the standard 3D model according ...

Method for hard fine machining of two toothings on a workpiece, and gear cutting machine, control program, hard fine machining combination tools and sensor assembly therefor

A method for hard finishing two different toothings on a workpiece, wherein, prior to each machining process, to set the correct tool engagement position for the machining process, a first relative rotational angle position of a first rotational position reference of the first toothing is determined relative to an axial rotational position of the workpiece spindle holding and clamping the workpiece for the first machining, and a second relative rotational angle position of a second rotational position reference of the second toothing is determined relative to an axial rotational position of a workpiece spindle holding and clamping the workpiece for the second machining, wherein the machining operations are carried out on the same workpiece spindle with no intervening clamping change, and with the first and second rotational position references coupled to each other as the basis thereof.

DIRECT-DRIVE TWO-AXIS MACHINING HEAD

A direct-drive two-axis machining head includes a head-drive unit and a shaft-drive unit. The head-drive unit includes a head-installing interface, a first motor, an axis-A supporter, and a first braking module mounted at an outermost rim of either a first motor seat or a stator of the first motor for braking the axis-A supporter. The shaft-drive unit further includes an axis-A-installing interface, a second motor, a shaft connector, and a second braking module mounted at an outermost rim of a second motor seat of the second motor for braking the shaft connector. The head-drive unit further includes a towline fixation sheet metal and a towline pipeline shield. The towline fixation sheet metal connects the rotor seat. One end of the towline pipeline shield connects the towline fixation sheet metal, while another end thereof connects the head-installing interface so as to shield a plurality of pipelines. 1. A direct-drive two-axis machining head , comprising:a head-drive unit, including:a head-installing interface, locating therebeneath a first motor seat;a first motor, having a stator and a rotor; wherein the stator is mounted at the first motor seat, and the rotor is mounted at a rotor seat;an axis-A supporter, connecting the rotor seat; anda first braking module, mounted at an outermost rim of the first motor seat for braking the axis-A supporter; anda shaft-drive unit, including:an axis-A-installing interface, having thereaside a second motor seat;a second motor, mounted at the second motor seat;a shaft connector, being to mount a shaft, driven by the second motor; anda second braking module, mounted at an outermost rim of the second motor seat for braking the shaft connector.2. The direct-drive two-axis machining head of claim 1 , wherein the head-drive unit further includes a towline fixation sheet metal and a towline pipeline shield claim 1 , the towline fixation sheet metal connects the rotor seat claim 1 , and one end of the towline pipeline shield connects ...

FLEXIBLE AUTOMATION CELL FOR PERFORMING SECONDARY OPERATIONS IN CONCERT WITH A MACHINING CENTER AND ROLL CHECK OPERATIONS

An automation cell incorporating elements for performing secondary operations on a machined part is adapted to be disposed adjacent to a machining center for performing the primary operations on the part. The cell incorporates a robotic arm capable of being moved into position with respect to the machining center so as to load machined parts into the machining center and unload primarily machined parts for the performance of secondary operations in the cell. In a preferred embodiment the automation cell performs roll check operations on the primarily machined gear by bringing it into meshed engagement with a master gear and rotating the meshed gears and employing a sensor to monitor the roll-out of the machined gear. 1. An automation cell for performing secondary operations on a machined part for use with a machining center for performing primary machining of the part , the automation cell comprising:a cell housing;a robot supported in the cell housing and comprising an elongated arm and a servo controlled gripper mechanism disposed on an end of the arm;the housing being adapted to be positioned adjacent to said machining center which performs a primary machine operation on the part and the robotic arm being supported so that the gripper disposed end moves between the housing and the machining center to allow parts to be moved between the machining center and the housing; andan operating assembly supported in the housing for performing secondary operations on parts after they have been machined in the machining center.2. The automation cell of wherein the secondary operations performed in the cell on parts initially machined in the machine center include checking operations on the primary machining operation performed by the machining center on the parts.3. The automation cell of wherein the gripper mechanism supported on the end of the robotic arm can support two parts simultaneously so that a part to be machined can be loaded into the machining center and a part ...

ROTARY MACHINING APPARATUS AND MACHINING METHOD USING THE SAME

A rotary machining apparatus that includes a rotary that supports and rotates a workpiece having helical teeth; a grinding wheel that grinds the helical teeth of the workpiece to be rotated by the rotary with grinding teeth; and a conveyor for carrying the workpiece in and out of the rotary, wherein the conveyor includes, around a turning center axis, a plurality of grippers for sandwiching the workpiece and a plurality of dressers for forming toothed surfaces of the grinding teeth, and turns around the turning center axis so that the grippers sequentially approach the rotary and the dressers sequentially approach the grinding wheel, and dress teeth of the dressers each have different shapes of toothed surfaces. 16-. (canceled)7. A rotary machining apparatus comprising:a rotary that supports and rotates a workpiece having helical teeth;a grinding wheel that grinds the helical teeth of the workpiece to be rotated by the rotary with grinding teeth; and the conveyor includes, around a turning center axis, a plurality of grippers for sandwiching the workpiece and a plurality of dressers for forming toothed surfaces of the grinding teeth, and turns around the turning center axis so that the grippers sequentially approach the rotary and the dressers sequentially approach the grinding wheel, and', 'dress teeth of the dressers each have different shapes of toothed surfaces., 'a conveyor for carrying the workpiece in and out of the rotary, wherein'}8. The rotary machining apparatus according to claim 7 , whereinthe dress teeth of the dressers have different shapes of the toothed surfaces in order to form toothed surfaces of the grinding teeth in such a manner that at least one of a pressure angle and a tooth profile roundness differs among the toothed surfaces of the helical teeth of the workpiece.9. The rotary machining apparatus according to claim 7 , whereinthe conveyor is structured by including a turning loader part that is turnably provided at a turning support pole ...

METHOD AND DEVICES FOR THE RAPID AND FLEXIBLE DRESSING OF GRINDING WORMS

Disclosed is a method for dressing a single- or multi-thread grinding worm () in which a main rolling movement between the grinding worm and a gear-like dressing tool () is brought about. In order to create flank modifications on the grinding worm, an additional relative movement is superimposed on the main rolling movement. In addition, an auxiliary drive specifically designed for such a method, a correspondingly designed machine tool and a dressing tool for carrying out the method are disclosed. 1. A method for dressing a single- or multi-thread grinding worm comprising:producing a basic rolling movement between the grinding worm and a gear-like dressing tool; andproducing an additional relative movement between the grinding worm and the dressing tool, wherein the additional relative movement is superimposed on the basic rolling movement in order to produce modifications of at least one flank of the grinding worm.2. The method as claimed in claim 1 , wherein the production of the basic rolling movement comprises:driving the grinding worm to perform a basic rotary movement around a grinding worm axis;driving the dressing tool to perform a basic rotary movement around a dressing tool axis, which extends crosswise with respect to the grinding worm axis; andproducing a shift movement between the dressing tool and the grinding worm along the grinding worm axis,wherein the basic rotary movement of the grinding worm, the basic rotary movement of the dressing tool and the shift movement are coupled in such a way that the grinding worm and the dressing tool perform the basic rolling movement during the dressing process.3. The method as claimed in claim 2 , wherein an additional rotary movement around the dressing tool axis is superimposed on the basic rotary movement of the dressing tool in order to produce at least part of the additional relative movement.4. The method as claimed in claim 3 , wherein both the basic rotary movement and the additional rotary movement are ...

Device and method for manufacturing crown gear

The inventive device includes a work supporting portion for supporting a work rotatably about a first axis, a cutter supporting portion for supporting a cutter rotatably about a second axis different from the first axis and a moving portion for moving the cutter along a reference line extending through the first axis. The second axis is slanted relative to a reference plane oriented perpendicular to the first axis and a blade edge of the cutter is caused to come into contact with the work at an offset position offset from the reference line. The work and the cutter are driven in synchronism and the cutter is moved along the reference line.

GEAR CUTTING MACHINE AND METHOD

A gear cutting machine for gear cutting a workpiece (W) using a gear shaped cutter (), by engaging and rotating the workpiece (W) that can rotate around a workpiece axis and a gear shaped cutter () that can rotate around a cutter axis, while cutting and feeding the gear shaped cutter (), including: 1. A gear cutting machine for gear cutting gears to be cut using a gear shaped cutter , by engaging and rotating a gear to be cut that can rotate around a workpiece axis and a gear shaped cutter that can rotate around a cutter axis , while cutting and feeding the gear shaped cutter , comprising:swiveling means for providing a crossed axis angle of the cutter axis to the workpiece axis;cutter cutting means for moving the gear shaped cutter in the cutting direction during rough cutting, orthogonal to the workpiece axis direction;cutter moving means for moving the gear shaped cutter in a direction orthogonal to the cutting direction and the workpiece axis direction;cutter feeding means for moving the gear shaped cutter in the feeding axis direction parallel to the workpiece rotating axis direction; andcontrolling means for performing rough cutting to provide a cross axis angle to the cutter axis and moving the cutter axis around the workpiece axis parallel to a predetermined angle with regard to a plane that intersects with the workpiece axis from the position of the rough cutting using the cutter cutting means and the cutter moving means, and controlling so that finish cutting is performed such that the cutter axis projected on a plane that includes the feeding axis direction and the cutting direction after moving has an angle with regard to the workpiece axis.2. The gear cutting machine according to claim 1 , wherein the blade of the gear shaped cutter is made of a plurality of cutting blades provided in a tooth trace direction claim 1 , and the controlling means sets the predetermined angle such that the cutting blade or combination of cutting blades that contribute to ...

METHOD AND DEVICE FOR THE AUTOMATED MACHINING AND TESTING OF GEAR COMPONENTS

A method for automated machining of gear components, comprising machining a gear component in a gear-cutting machine, performing an inline test of the gear component, wherein the inline test provides at least one test value, and comparing the at least one test value with at least one default value, and if the result of the comparison is positive, then outputting the gear component as a good part, and if the result of the comparison is negative, then transferring the gear component to an external measuring device for carrying out an offline measurement, performing the offline measurement of the gear component, wherein the offline measurement provides at least one measured value, and comparing the measured value with the test value, and if the comparison detects a deviation of the measured value from the at least one test value, then automatically making an adaptation of the inline test. 1. A method for the automated machining of gear components in a device , comprising the following steps:a) machining a gear component in a gear-cutting machine,b) performing an inline test of the gear component after said machining and obtaining by the inline test at least one test value of at least one feature of the gear component, wherein the inline test is performed in an inline test device located either in or on the gear-cutting machine or separate from the gear-cutting machine,c) comparing the at least one test value with at least one default value,d) when said comparison performed in step c) is positive, outputting the gear part as a good part, (i) transferring the gear component to an external measuring device adapted to perform an offline measurement,', '(ii) performing the offline measurement of the gear component and obtaining by the offline measurement at least one measured value of the at least one feature of the gear component,', '(iii) comparing the at least one measured value with the at least one test value,', '(iv) when said comparison performed in step (iii) ...

GEAR TEETH PHASE CALCULATION DEVICE, GEAR TEETH PHASE CALCULATION METHOD, AND GEAR MACHINING APPARATUS

The present invention improves the calculation accuracy of the phase of gear teeth. This method for calculating a phase of teeth of a gear, the gear having Z number of teeth, includes: a gear teeth amplitude signal acquiring step of acquiring a gear teeth amplitude signal (S(c)) corresponding to at least one revolution of the gear, the gear teeth amplitude signal (S(c)) being formed by an association of an angle (c) of the gear and a value corresponding to irregularities on an outer circumference of the gear within the angle (c); a phase calculating step of calculating a phase (B) of an angular pitch (P) of the gear in accordance with the number (Z) of teeth when the gear teeth amplitude signal (S(c)) is subjected to frequency decomposition; and a gear meshing angle calculating step of calculating a gear meshing angle on the basis of the phase (B) detected by the phase calculating unit. 1. A method for calculating a phase of teeth of a gear , the gear having Z number of teeth , the method comprising of:a gear teeth amplitude signal acquiring step of acquiring a gear teeth amplitude signal (S(c)) corresponding to at least one revolution of the gear, the gear teeth amplitude signal (S(c)) being formed by an association of an angle (c) of the gear and a value corresponding to irregularities on an outer circumference of the gear within the angle (c);a phase calculating step of calculating a phase (B) of an angular pitch (P) of the gear in accordance with the number (Z) of teeth when the gear teeth amplitude signal (S(c)) is subjected to frequency decomposition; anda gear meshing angle calculating step of calculating a gear meshing angle on the basis of the phase (B) calculated in the phase calculating step.2. The method for calculating a phase of teeth of a gear according to claim 1 , whereinin the phase calculating step, the phase (B) of the angular pitch (P) of the gear in accordance with the number (Z) of teeth is calculated by approximating to zero a difference ...

METHOD AND DEVICE FOR FINE MACHINING A TOOTHED WORKPIECE, AND PROGRAM FOR CONTROLLING SAID DEVICE

A method and a device for the fine-machining of a toothed workpiece with a toothed finishing tool () which meshes with the workpiece in mutual tooth engagement are, for the purpose of producing conically modified tooth flanks, designed according to the invention in such a way that in the dressing process the finishing tool () and the dressing tool () are set at a position of reduced center distance (a) that is offset from a position of maximum center distance. 112101210101121211011. Method of fine-machining of a toothed workpiece () , using a toothed finishing tool () which meshes with the workpiece () in mutual tooth engagement , wherein the finishing tool () is subjected to a dressing process in which the finishing tool () and a toothed dressing tool () , in tooth engagement with each other , rotate about their respective gear axes (C , C) which are arranged relative to each other at a center distance (a) different from zero and an axis-crossing angle different from zero , characterized in that the gear axes (C , C) of the finishing tool () and of the dressing tool () are arranged relative to each other in a position that is offset from the position of maximum center distance (a′) to a position of reduced center distance (a).21011. Method according to claim 1 , characterized in that the toothed contour of the finishing tool () is an internal toothed contour claim 1 , while the toothed contour of the dressing tool () is an external toothed contour.31011. Method according to claim 1 , characterized in that the toothed contour of the finishing tool () is an external contour claim 1 , while the toothed contour of the dressing tool () is an internal contour.410. Method according to characterized in that the finishing tool () is a ring-shaped honing tool.511. Method according to characterized in that the tooth thickness of the dressing tool () claim 1 , disregarding tooth trace convexities claim 1 , is constant over the tooth width.611110. Method according to ...

TOOL ELECTRODE FOR AND METHODS OF ELECTRICAL DISCHARGE MACHINING

Tool electrodes for and methods of electrical discharge machining are provided. In one exemplary aspect, a tool electrode for machining features into a workpiece is provided that allows for increased machining speed without sacrificing the quality of the machined features. Moreover, a tool electrode is provided that eliminates or reduces the high cost associated with customized tool electrodes. In particular, a tool electrode is provided that includes a plurality of electrode elements arranged and spaced apart in a digitized matrix representative of a tooling shape for machining features into a workpiece. The plurality of electrode elements are spaced apart from one another and arranged in the digitized matrix by digitizing an analog electrode tool configured to machine the feature into the workpiece or a volume of the feature to be machined into the workpiece. 1. A tool electrode for electrical discharge machining a feature into a workpiece , the tool electrode comprising:a plurality of electrode elements arranged in a digitized matrix representative of a tooling shape for machining the feature into the workpiece, wherein the plurality of electrode elements are arranged in the digitized matrix by digitizing an analog electrode tool shaped to machine the feature into the workpiece or a volume of the feature to be machined into the workpiece.2. The tool electrode of claim 1 , wherein the analog tool electrode has a width claim 1 , and wherein the digitized matrix defines a vertical direction claim 1 , a lateral direction claim 1 , and a transverse direction claim 1 , and wherein claim 1 , during digitizing claim 1 , the number of electrode elements positioned along the lateral direction is defined by: n=(w−g)/(d+g) claim 1 , wherein nis the number of electrode elements positioned along the lateral direction claim 1 , w is the width of the analog tool electrode claim 1 , gis a gap between adjacent electrode elements along the lateral direction claim 1 , and dis an ...

Method for dressing of a grinding worm by means of a dressing roll and dressing roll

A method for dressing a grinding worm using a dressing roll that engages the grinding worm to profile its helical grinding profile. The dressing roll is produced by: a) producing a disk-shaped base body a profiled surface for receiving a layer of abrasive particles, wherein the surface is at least partially tooth-shaped in a radial cross section, b) positioning the abrasive particles on the profiled surface, c) profiling the base body provided with abrasive particles by removing outer sections of the abrasive particles with a profiling tool so that the abrasive profile of the dressing roll is created. Production of the profiled surface takes place in step a) so that the distance between the profiled surface and the abrasive profile changes during advancing from the root region to the tip region at a flank of the tooth-shaped surface, measured in the radial cross section perpendicular to the profiled surface.

METHOD FOR MACHINING TOOTHINGS, AS WELL AS TOOTHING MACHINE AND CONTROL PROGRAM FOR SAME

The invention relates to a method for machining toothings, which method uses a disk-shaped, toothed tool that is rotationally driven about its axis of rotation and has a geometrically defined cutting edge. The tool teeth are produced from a base material, are provided, at least on the tooth flanks, with a coating that improves wear resistance, and have machining surfaces facing an end face of the tool, said machining surfaces being re-ground from time to time when the tool is reconditioned, wherein after at least one regrinding, use of the tool is resumed and continued with regions of the machining surfaces formed along the cutting edges from the base material. 15455. Method for machining toothings , for which a disk-shaped and toothed tool () is used , which is driven rotationally about its axis of rotation and has a geometrically defined cutting edge , the tool teeth () of which are made of a base material and are provided with a coating that improves wear resistance at least on the tooth flanks , and also have rake surfaces ( , ′) facing an end face of the tool , which are reground from time to time in the scope of reconditioning the tool ,characterized in that the use of the tool is resumed and continued after at least one regrinding with regions of the rake surfaces formed in any case along the cutting edges from the base material.2100. Method according to claim 1 , in which the continued use takes place on the same toothing machine () as the use before regrinding.3. Method according to or claim 1 , in which a machine control for continued use automatically receives information about the depth of removal during resharpening.4. Method according to in which the continued use is carried out without intermediate measurement of a first toothing machined after resumption.5. Method according to in which the regrinding is carried out on a regrinding station coupled via a tool changer with a toothing machine on which the previous or continued use is carried out.6100. ...

AUTOMATIC PROCESS CONTROL IN A GEAR PROCESSING MACHINE

A method for monitoring a machining process in which tooth flanks of pre-toothed workpieces () are machined with a finishing machine () is disclosed. As part of the method, a plurality of measurement values are recorded while a finishing tool () is in machining engagement with a workpiece. Among them are values of a power indicator which indicates a current power consumption of the tool spindle during the machining of the tooth flanks of the workpiece. A normalization operation is applied to at least some of the measurement values or to values of a quantity derived from the measurement values in order to obtain normalized values. The normalization operation depends on at least one of the following parameters: geometrical parameters of the finishing tool, in particular its outside diameter, geometrical parameters of the workpiece and setting parameters of the finishing machine, in particular radial infeed and axial feed. 1. A method for monitoring a machining process in which tooth flanks of pre-toothed workpieces are machined with a finishing machine , the finishing machine having a tool spindle for driving a finishing tool to rotate about a tool axis and at least one workpiece spindle for driving a pre-toothed workpiece to rotation , the method comprising:detecting a plurality of measurement values while the finishing tool is in machining engagement with a workpiece; andapplying a normalization operation to at least some of the measurement values or to values of a quantity derived from the measurement values to obtain normalized values,the normalization operation depending on at least one process parameter, the at least one process parameter being selected from geometric parameters of the finishing tool, geometric parameters of the workpiece and setting parameters of the finishing machine.2. The method according to claim 1 , wherein the detected measurement values comprise values of a power indicator which indicates a current power consumption of the tool spindle ...

METHOD, TOOL AND DEVICE FOR PROFILING A FINISHING TOOL

Method for profiling a finishing tool, in particular a grinding worm, having a first and a second finishing flank; the method providing the steps of: arranging a cutting portion of a profiling tool in contact with the first flank of the thread; causing the cutting portion to slide in contact with the first flank of the thread so as to profile it; removing the cutting portion from the thread; automatically rotating the profiling tool so as to arrange the cutting portion in contact with a second flank of the thread; and causing the cutting portion to slide in contact with the second flank of the thread so as to profile it. 3. Method claim 2 , according to claim 2 , wherein the first profiling operation is a roughing-out operation and the second profiling operation is a finishing operation.4. Method claim 2 , according to claim 2 , wherein the first profiling operation is with linear contact and the second profiling operation is with localized contact i.e. a contact with a small and circumscribed area.591093031130131453. Method claim 1 , according to claim 1 , wherein the angular position of the profiling tool (; ) with respect to a second axis that is transverse to the first axis (L) claim 1 , is fixed during each step in which a cutting portion (; ; A claim 1 , A) is caused to slide into contact with a flank (; ) of the thread ().691099109301303113123031130131910991093013031131. A profiling tool (; ) for performing the method of having the shape of a disc; wherein the profiling tool (; ) has a first rotation axis (L) claim 1 , a first cutting portion (; A) and a second cutting portion (; A) which are suited to profile the finishing tool (); in an axial section claim 1 , the first and the second cutting portion ( claim 1 , ; A claim 1 , A) are divided from one another by a second axis (M) that is perpendicular to the rotation axis (L) of the profiling tool (; ); the profiling tool (; ) having a rotation center (R) defined by the intersection of said first and second ...

METHOD OF MAKING BARREL-SHAPED WORM-LIKE TOOL

Provided is a method of making a barrel-shaped worm-like tool whereby a barrel-shaped worm-like tool capable of efficiently performing grinding without unequal wear can easily be made. The aforementioned method comprises making the barrel-shaped worm-like tool () by using a dressing gear () to dress the barrel-shaped worm-like tool (), which is used for machining an internal gear and has a diameter that gradually increases from the ends () to the center () in the axial direction. On the basis of data wherein the number of teeth is less than that of the internal gear to be machined, the dressing gear () and the barrel-shaped worm-like tool () are engaged with each other at the same axial intersection angle as during gear-machining performed by the barrel-shaped worm-like tool (). 1determining dressing operation data based on the number of teeth for the barrel-shaped worm tool, which has a number of teeth that is smaller than the number of the teeth in specification data for the internal gear to be machined; engaging the disk dresser and the barrel-shaped worm tool with each other; andmoving the barrel-shaped worm tool and the disk dresser, in a state of engagement with each other, based on the dressing operation data.. A method of dressing a barrel-shaped worm tool that uses a dressing tool to dress the barrel-shaped worm tool, the barrel-shaped worm tool is used for gear-machining an internal gear to be machined by the barrel-shaped worm tool and has a diameter gradually increasing from ends in an axial direction to a center in the axial direction of the barrel-shaped worm tool, the dressing tool is a disk dresser of a shape in which a contour of the edge surface of the disk dresser matches a cross sectional shape of a tooth of the internal gear to be machined, the method comprising: This application is a Divisional of co-pending U.S. patent application Ser. No. 13/500,838 filed on Jun. 18, 2012, which is a National Phase of PCT/JP2010/067503 filed on Oct. 6, 2010, ...

GEAR CUTTING MACHINE AND METHOD FOR MACHINING GEAR TEETH

The invention concerns a gear-cutting machine for the machining of gear teeth with a gear-cutting tool driven in rotary movement about its tool axis, further with an assembly that includes a tool holder for the gear-cutting tool and is rotatably mounted on a carrier, allowing the tool axis to be set in a desired orientation, with an actuator device through which the assembly can be set to a desired angular position, and with a locking device that allows the assembly to be secured against being dislodged from the set angular position. According to the invention, a protruding arm that is a functional element of the actuator device is coupled to the assembly through a non-rotatable connection. 1. Gear-cutting machine for the machining of gear teeth with a gear-cutting tool driven in rotary movement about its tool axis , comprising{'b': 60', '50', '40, 'an assembly () that includes a tool holder for the gear-cutting tool and is rotatably mounted on a carrier (, ), allowing the tool axis (Y) to be set in a desired orientation,'}an actuator device through which the assembly can be set to a desired angular position, anda locking device that allows the assembly to be secured against being dislodged from a set angular position,{'b': '70', 'characterized by a protruding arm () that is coupled to the assembly through a non-rotatable connection and is a functional element of the actuator device.'}250. Gear-cutting machine according to claim 1 , wherein the carrier is a first linear carriage ().3. Gear-cutting machine according to claim 2 , wherein the drive source of the first linear carriage in an operating position of the gear-cutting machine is a functional element of the actuator device.48280. Gear-cutting machine according to wherein the actuator device comprises a counter bearing ( claim 1 , ) cooperating with the end of the protruding arm on the opposite side of the non-rotating connection.5. Gear-cutting machine according to claim 4 , wherein the cooperation takes place ...

SYSTEM AND METHOD FOR AUTOMATED MACHINING OF TOOTHED MEMBERS

A system and method for machining a workpiece to provide a toothed member having a desired tooth pattern. A cutting tool machines the workpiece to a first depth, thereby forming a semi-finished tooth pattern, the first depth less than a full depth to which the workpiece is to be machined to provide the desired tooth pattern. Dimensions of the semi-finished tooth pattern are acquired and compared to nominal dimensions. If the acquired dimensions are not within a tolerance of the nominal dimensions, the geometry of the cutting tool is modified for correcting deviations of the acquired dimensions from tolerance and the workpiece further machined by the modified cutting tool. Once the dimensions of the semi-finished tooth pattern are within tolerance, the workpiece is machined to the full depth for providing the desired tooth pattern. 1. A computer-implemented method for machining from a workpiece a toothed member having a desired tooth pattern , the workpiece machined using a cutting tool of a numerically controlled machine , the method comprising:causing the cutting tool to machine the workpiece to a first depth to provide a semi-finished tooth pattern, the semi-finished tooth pattern created according to a geometry of the cutting tool, the first depth less than a full depth of the desired tooth pattern;acquiring dimensions of the semi-finished tooth pattern;comparing the acquired dimensions to nominal dimensions of the semi-finished tooth pattern and determining whether the acquired dimensions are within a predetermined tolerance of the nominal dimensions;if the acquired dimensions are not within the predetermined tolerance of the nominal dimensions, causing the geometry of the cutting tool to be modified for correcting deviations of the acquired dimensions from the tolerance, and causing the modified cutting tool to machine the workpiece to bring the dimensions of the semi-finished tooth pattern within the tolerance; andcausing the workpiece to be machined to the ...

MACHINE FOR MACHINING WORKPIECES

A machine for machining workpieces includes a machine frame (), a honing ring carrier () which is mounted on the machine frame and in which a honing ring or a honing ring blank is clampable and rotationally drivable about its central axis, and a workpiece spindle module () having a workpiece spindle (), wherein a workpiece which is to be machined with the honing ring clamped in the honing ring carrier () is mountable in the region of a free end of the workpiece spindle (). The machine further includes a grinding module () for profiling a honing ring as a result of grinding a honing ring blank, wherein the grinding module () is arranged in such a manner on the machine frame () that a grinding wheel of the grinding module () can be positioned relative to the honing ring carrier () inside a truly three-dimensional space. The profiling of a honing ring and the honing of a workpiece can consequently be effected in the same clamping setup of the honing ring. Problems, which are produced as a result of inaccurate centering when (re-)clamping the honing ring, are avoided as a result. An externally profiled tool which is specific to honing rings, e.g. a diamond gear wheel, is not required to produce the honing ring. 1. A machine for machining workpieces , includinga) a machine frame;b) a honing ring carrier which is mounted on the machine frame and in which a honing ring or a honing ring blank is clampable and rotationally drivable about its central axis;c) a workpiece spindle module having a workpiece spindle, wherein a workpiece which is to be machined with the honing ring clamped in the honing ring carrier is mountable in the region of a free end of the workpiece spindle;characterized byd) a grinding module for profiling a honing ring as a result of grinding a honing ring blank, wherein the grinding module is arranged in such a manner on the machine frame that a grinding wheel of the grinding module can be positioned relative to the honing ring carrier inside a truly ...

METHOD AND DEVICE FOR HARD-FINE MACHINING INTERNALLY TOOTHED GEARWHEELS BY MEANS OF A TOOTHED HONING MACHINE

A method for machining an internally toothed workpiece, in which the workpiece is clamped into a toothed honing machine, and in which at least one tool that is at least partially made of a high-hardness cutting material is guided along respective teeth of the internally toothed workpiece, in order to carry out hard-fine machining of the teeth of the internally toothed workpiece. 113-. (canceled)14. A method for machining an internally toothed workpiece , comprising:the workpiece is clamped into a mount of a toothed honing machine, said mount being provided for the insertion of a honing ring, and at least one tool that is at least partially made of a high-hardness cutting material is guided along respective teeth of the internally toothed workpiece, in order to carry out hard-fine machining of the teeth of the internally toothed workpiece.15. The method as claimed in claim 14 , wherein an internally toothed gearwheel with hardened tooth flanks is chosen as the workpiece.16. The method as claimed in claim 14 , wherein polycrystalline diamond claim 14 , especially a ceramically bonded diamond is chosen as the high-hardness cutting material.17. The method as claimed in claim 14 , wherein boron nitride claim 14 , especially cubic ceramically bonded boron nitride is chosen as the high-hardness cutting material.18. The method as claimed in claim 14 , wherein at least one externally toothed gearwheel-shaped tool is chosen as the at least one tool claim 14 , wherein the at least one tool is broader than the workpiece by a multiple claim 14 , especially a twofold or a threefold factor.19. The method as claimed in claim 18 , wherein an axis intersection angle of the at least one tool with the workpiece is modified claim 18 , so that the workpiece contacts the at least one tool at a predetermined point.20. The method as claimed in claim 18 , wherein the tool is displaced axially along an axis running horizontally or vertically through a center point of the tool claim 18 , so ...

Main spindle mechanism

Provided is a main spindle mechanism for a machine tool such that even in the case of a small-diameter spindle, it is possible to increase the torque transmitted to a large cutter and it is possible to prevent contact to and collisions with the workpiece. The main spindle mechanism, which is provided to a machine tool that cuts a workpiece by means of a cutter, is characterized by having: a spindle that transmits torque from the drive power source of the machine tool and is formed with outer teeth at the outer periphery of the tip thereof; a large cutter arbor provided with a shaft for attaching the large cutter and a base at which outer teeth are formed having the same diameter as the outer teeth of the spindle; and a gear-coupling-shaped sleeve that is provided in a manner so as to cover the base of the large cutter arbor and the tip of the spindle, and at which are formed inner teeth that mesh with both the outer teeth of the spindle and the outer teeth of the large cutter arbor.

METHOD FOR THE AUTOMATIC DETERMINATION OF THE GEOMETRICAL DIMENSIONS OF A TOOL IN A GEAR CUTTING MACHINE

The application relates to a method for the automatic determination of the geometrical dimensions of a tool having a machining region in worm thread form, in particular of a grinding worm, in a gear cutting machine, wherein at least one parameter of the tool is automatically detected and/or determined by means of at least one sensor. 1. A method for the automatic determination of the geometrical dimensions of a tool having a machining region in worm thread form , in a gear cutting machine ,comprisingdetecting and/or determining at least one parameter of the tool automatically via at least one sensor.2. A method in accordance with claim 1 , wherein a position of the tool within the machine and main geometrical dimensions including tool length claim 1 , tool diameter and/or the number of starts of the tool and/or the lead direction of the tool are determined.3. A method in accordance with claim 1 , wherein a pitch claim 1 , a module claim 1 , a diameter claim 1 , a worm width claim 1 , a worm thread lead and/or a V position of the tool claim 1 , including of the grinding worm is/are determined automatically via a calculatory processing of the detected and/or determined values.4. A method in accordance with claim 2 , wherein a calibration process is carried out to determine a location of the sensor with respect to the tool claim 2 , including the grinding worm claim 2 , and/or with respect to the positioning within the gear cutting machine.5. A method in accordance with claim 3 , wherein an alignment of the tool to a predefined reference point claim 3 , including the alignment of an A axis to 0° claim 3 , is carried out for determining a number of starts and subsequently the sensor detects a plurality of revolutions claim 3 , including three revolutions claim 3 , of the tool claim 3 , including of the grinding worm claim 3 , about a B axis.6. A method in accordance with claim 3 , wherein at least one respective measurement is carried out for determining a lead ...

MEASUREMENT OF CHARACTERISTIC VARIABLES OF A PRECISION MACHINING TOOL

The invention relates to a machine for the precision machining of toothed workpieces, which machine comprises a tool spindle () for mounting a precision machining tool (). The tool spindle can be driven to rotate about a tool spindle axis (B) by means of a tool spindle drive (). A control device () takes at least one measurement of the distance from the precision machining tool () by means of a distance sensor () and, on the basis of said measurement(s), determines at least one characteristic variable of the precision machining tool, in particular the outer diameter thereof. The distance sensor can operate optically in particular. 1. A machine for finishing toothed workpieces , comprising:a tool carrier;a tool spindle for chucking a finishing tool, the tool spindle being attached to the tool carrier;a tool spindle drive for driving the tool spindle so as to rotate about a tool spindle axis;at least one distance sensor; anda control device configured to carry out, by means of the distance sensor, at least one distance measurement from a finishing tool chucked on the tool spindle and to determine, from the distance measurement, a characteristic parameter of the finishing tool.2. (canceled)3. The machine as claimed in claim 1 , wherein the distance sensor is a distance sensor that operates in an optical manner and which is configured for generating a measuring light beam.4. (canceled)5. (canceled)6. The machine as claimed in claim 1 , wherein the distance sensor is a sensor that operates in a contacting manner claim 1 , the distance sensor being spring-biased.7. The machine as claimed in claim 1 , wherein the control device is configured to determine a measure for the external diameter of the finishing tool from the at least one distance measurement.8. The machine as claimed in claim 7 , wherein the control device is configured to actuate the tool spindle drive in such a manner that the tool spindle rotates at a rotating speed that is variable as a function of the ...

Method for Multi-Gear Hobbing and Its Application Thereof

A method for multi-gear hobbing and its application thereof towards hobbing more than one gear work-pieces simultaneously using single hob cutter, preferably on an automatic dry hob milling machine; wherein said hobbing operation mainly involves a work-arbor loaded with a virtual gear work piece comprising of preferably plurality of gear work-pieces, with or without plurality of spacer elements therein, stacked together on the work-arbor; a hob cutter suitable for hobbing on the complete cylindrical surface of said virtual gear work-piece; and effective fume control module and air cooling system, preferably as essential part of the automatic dry bobbing machines. 1. A method for multi-gear hobbing and its application thereof towards hobbing more than one gear work-pieces simultaneously using single hob cutter , preferably on an automatic dry hob milling machine; wherein said hobbing operation mainly involves:(i) a work-arbor loaded with a virtual gear work piece comprising of preferably plurality of gear work-pieces, with or without plurality of spacer elements therein, stacked together on the work-arbor,(ii) a hob cutter suitable for hobbing on the complete cylindrical surface of said virtual gear work-piece, and(iii) effective fume control module and air cooling system, preferably as essential part of the automatic dry hobbing machines;2. A method for multi-gear hobbing as claimed in claim 1 , wherein said method of multi-gear bobbing is characterized by claim 1 , at least one operations among other things claim 1 , optional module towards loading/mounting of more than one gear work-pieces on the work-arbor simultaneously; stacking/mounting of said virtual gear work-piece on a suitable work-arbor; simultaneous hobbing of plurality of gear work pieces stacked/mounted on the work-arbor as said virtual gear work piece; optional module towards automatic unloading of hobbed multiple gears from said work-arbor of the hobbing machine; and functioning of a module for fume ...

METHOD FOR INSPECTING A DRESSABLE WORM GRINDING WHEEL

A method for inspecting a dressable worm grinding wheel, having the following method steps: 1. A method comprising:chucking a dressable worm grinding wheel in a machine tool, wherein the worm grinding wheel defines at least one worm thread defining a thread head;chucking a dressing tool in the machine tool, wherein the dressing tool is adapted to dress the worm grinding wheel;moving a surface of the dressing tool in contact with and along the thread head of the worm thread; andduring the moving step, measuring and analyzing at least one signal representing a characteristic of said contact between the dressing tool and the thread head of the worm thread.2. The method according to claim 1 , wherein said surface defines an outer-diameter-side surface of the dressing tool.3. The method according to claim 1 , wherein said analyzing step includes comparing the at least one signal to a reference signal.4. The method according to claim 3 , further including automatically determining a thread number of the worm grinding wheel claim 3 , a thread direction of the worm grinding wheel claim 3 , and integrity of the thread head of the worm thread of the worm grinding wheel during the moving claim 3 , measuring claim 3 , and comparing steps.5. The method according to claim 1 , including performing the moving stepafter the chucking of the worm grinding wheel;after scanning the worm grinding wheel;after dressing the worm grinding wheel with the dressing tool; and/orbefore grinding machining with the worm grinding wheel a workpiece of a series of workpieces.6. The method according to claim 1 , wherein the worm grinding wheel defines at least two worm threads claim 1 , and the method includes sequentially performing the moving step and the measuring step with each of the at least two worm threads.7. The method according to claim 1 , wherein the dressing tool defines a disk-shaped dressing roller defining a V-shaped or a trapezoidal profile.8. The method according to claim 1 , ...

Method and apparatus for the gear manufacturing machining of a workpiece by a diagonal generating method

The present disclosure relates to a method for the gear manufacturing machining of a workpiece by a diagonal-generating method, in which the workpiece is subjected to gear tooth machining by the rolling off of a tool, wherein an axial feed of the tool takes place during the machining with a diagonal ratio given by the ratio between the axial feed of the tool and the axial feed of the workpiece. According to the present disclosure, the diagonal ratio is changed within the course of the machining of a workpiece.

METHOD FOR THE MANUFACTURE OF A WORKPIECE HAVING A CORRECTED GEAR TOOTH GEOMETRY AND/OR A MODIFIED SURFACE STRUCTURE

A method for production of a workpiece having a corrected gear tooth geometry and/or a modified surface structure by a diagonal generating method with a modified tool, wherein a modification in the generating pattern has a constant value in a first direction of the tool and is given by a function Fin a second direction of the tool, which extends perpendicular to the first direction, and/or wherein the modification is produced in that the position of the dresser to the tool is varied during dressing in dependence on the angle of rotation of the tool and/or on the tool width position, wherein the modification of the tool produces a corresponding modification on the surface of the workpiece, and wherein the modification of the workpiece produced by the modification is superposed by a profile modification and/or a modification caused by a change of the machine kinematics during the machining process. 1. A method for production of a workpiece having a corrected gear tooth geometry and/or a modified surface structure by a diagonal generating method by means of a modified tool , wherein a modification of the surface geometry of the tool is produced , wherein the modification in a generating pattern has a constant value at least locally in a first direction of the tool and is given by a function Fin a second direction of the tool , which extends perpendicular to the first direction , and/or wherein the modification is produced in that the position of a dresser to the tool is varied during dressing in dependence on an angle of rotation of the tool and/or on a tool width position , wherein the modification of the tool by the diagonal generating method produces a corresponding modification on the surface of the workpiece , wherein the modification of on the surface of the workpiece is superposed by a profile modification and/or a modification caused by a change of machine kinematics during a machining process.2. The method in accordance with claim 1 , wherein the shape and/or ...

METHOD FOR THE GEAR MANUFACTURING MACHINING OF A WORKPIECE BY A DIAGONAL GENERATING METHOD

A method for the production of a workpiece having a corrected gear tooth geometry and/or a modified surface structure by a diagonal generating method by a modified tool, wherein a modification of the surface geometry of the tool is produced in that the position of the tool dresser is varied during dressing in dependence on the angle of rotation of the tool and/or on the tool width position and/or wherein a modification of the surface geometry is produced which has a constant value at least locally in the generating pattern in a first direction of the tool and is given by a function in a second direction of the tool which extends perpendicular to the first direction, wherein the modification of the tool produces a corresponding modification on the surface of the workpiece, and wherein the modification on the surface of the workpiece is a directed crowning without shape deviations. 1. A method for production of a workpiece having a corrected gear tooth geometry and/or a modified surface structure by a diagonal generating method by means of a modified tool , wherein a modification of the surface geometry of the tool is produced in that the position of a dresser to the tool is varied during dressing in dependence on an angle of rotation of the tool and/or on a tool width position and/or wherein a modification of the surface geometry of the tool is produced which has a constant value at least locally in a generating pattern in a first direction of the tool and is given by a function Fin a second direction of the tool which extends perpendicular to the first direction , wherein the modification of the tool by the diagonal generating method produces a corresponding modification on the surface of the workpiece , wherein the modification on the surface of the workpiece is a directed crowning without shape deviations , or wherein the specific modification represents a pure tooth trace modification , or wherein the specific modification is an end relief , or wherein lines of ...

METHOD OF MODIFYING GEAR PROFILES

A disclosed method utilizes virtual representations of gear profiles produced in view of accuracies and capabilities of specific machine and tool combinations to validate profile finishing parameters. The virtual representations are utilized to identify modifications needed to account for process capability and are implemented into the process to change the nominal profile utilized for producing the finished gear profiles. The resulting nominal gear profile accounts for process variations and thereby provides a more accurate and repeatable gear tooth profile. 1. A method of finishing a gear tooth profile comprising:determining a machine accuracy in repeating gear tooth profile forming processes;determining an accuracy of a tool mounted to the machine for forming a desired gear tooth profile;generating a representation of gear tooth profiles for mating gears utilizing the determined machine accuracy and the determined tool accuracy as a virtual simulation within a computer system;identifying deviations from a desired gear tooth profiles at an interface between the representation of gear tooth profiles of the mating gears with the computer system;determining modifications to the gear tooth profile accounting for the identified deviations from the desired gear tooth profiles;defining machine operating parameters required to provide the desired gear tooth profiles including the determined modifications to the gear tooth profile accounting for the identified deviations from the desired gear tooth profiles; andperforming finishing operations of the gear tooth profiles of at least one of the mating gears.2. The method as recited in claim 1 , wherein the step of determining an accuracy of a tool comprises determining an accuracy of an abrasive wheel profile and a variation of the abrasive wheel profile caused by wear during operation.3. The method as recited in claim 2 , wherein the abrasive wheel profile includes a profile defining a groove and sides of adjacent gear teeth ...

Method for Modifying the Flanks of a Gear Wheel Tooth with the Aid of a Tool

The invention relates to a method for modifying the geometry of gear wheel tooth flanks with a tool with a toothing that engages with the gear wheel during a precision machining. A varied profile is produced on the tool over the width of the tool, in that during a dressing procedure a dressing wheel is moved along the tooth flank of the tooth to be dressed. The width of the teeth of the dressing wheel is much smaller than the width of the tool. In order to cover the width of the tool a length must be covered corresponding to a multiple of the width of the teeth of the dressing wheel. After the dressing, the precision machining of the gear wheel is carried out with the tool. Since the dressing wheel is moved with a changing pitch and a changing crossed axes angle relative to the tool, the modification of the tooth flank geometry can be reproduced in the tool. A modification of the crossed axes angle dependent on the helical angle of the tool takes place with equalisation of the helical angle of the tool changing over the width of the teeth of the tool. 1. A method for modifying the geometry of the tooth flanks of a gear wheel with the aid of a tool , which has a toothing engaging with the teeth of the gear wheel during a precision machining , wherein the following working steps are performed:a) forming a profile on the tool varying over the width of the tool, in which a dressing wheel is moved during a dressing procedure along the tooth flank of the tooth to be respectively dressed, wherein the width of the teeth of the dressing wheel engaging with the tool to be dressed is smaller than the width the tool to be dressed to such an extent that, in order to cover the width of the tool to be dressed, the dressing wheel has to be moved by a length in a direction that corresponds to a multiple of the width of the teeth of the dressing wheel, andb) precision machining of the gear wheel with the tool that has been dressed in this way,wherein the dressing wheel during the ...

Machine for machining workpieces, corresponding arrangement and method for machining workpieces

The invention relates to a machine for the gear cutting machining of workpieces, in particular a gear shaping machine, comprising a spindle for holding a machining tool, and a drive by means of which the spindle can be rotationally driven about its spindle axis, and further comprising an arrangement. When said arrangement is actuated, a spindle rotation caused by the drive changes the axial relative position with respect to the spindle axis.

Field machining of wind turbine gearboxes

A gearbox repair assembly is disclosed herein. The gearbox repair assembly includes a sleeve having an inner diameter configured to receive a bearing assembly and an outer diameter configured to fit within a bore of a gearbox housing. The gearbox housing can be part of a gearbox of a wind turbine. The gearbox repair assembly further includes a retaining plate configured to be attached to the gearbox housing for preventing an outer race of the bearing assembly from rotating in the bore relative to the gearbox housing. Also provided are methods to repair such a gearbox. The gearbox repair assembly and related methods reduce the time and cost needed to repair the gearboxes.

METHOD FOR GRINDING TOOTHED WORKPIECES AND APPARATUS DESIGNED THEREFOR

The invention concerns a method of grinding a toothed workpiece in which a central axis of the toothed contour profile is defined, wherein the method encompasses at least two work operations. In a first work operation a grinding zone of a grinding tool whose selection is determined by the grinding process to be performed, which rotates about an axis of rotation and is set up for an infeed in the direction of the shortest distance between said central axis and the rotation axis, is brought into grinding engagement with a tooth flank of the workpiece. In a later, second work operation, the tooth flank is brought into grinding engagement with a grinding zone of a grinding tool whose selection is determined by the grinding process to be performed and which is advanced in the infeed direction of the first operation. The grinding zone that is active in the first work operation is dressed in a first dressing operation with a dressing tool, and the grinding zone that is active in the second work operation is dressed in a second dressing operation with a dressing tool, wherein in the first dressing operation a first dressing tool zone is brought into dressing engagement with the grinding zone that is to be dressed, and in the second dressing operation a second dressing tool zone which is spatially separate from the first dressing tool zone is brought into dressing engagement with the grinding zone that is to be dressed. 12101002020220201010010104343. Method of grinding a tooth-profiled workpiece () having a central axis (Z) of the toothed profile , said method comprising at least two work operations , wherein in a first work operation a grinding zone (L , R) of a grinding tool () whose selection is determined by the grinding process to be performed , which rotates about an axis of rotation (y) and is set up for an infeed in the direction (X) of the shortest distance between said central axis (Z) and the rotary axis (Y) , is brought into grinding engagement with a tooth flank ...

DEVICE FOR COVERING A TOOTH PROFILE

A device for covering a tooth profile during machined processing with a tool, including an appliance for applying cooling lubricant to at least one contact area between the tool and the tooth profile during machine processing of the tooth profile by means of the tool. The appliance includes a guiding means by means of which a front face of the tooth profile in an area that is facing towards the contact area and an environment of the tooth profile in front of the area can be at least partially covered. The appliance is formed with at least one conduit which, in the operational state of the guiding means in which the tooth profile is covered, is arranged so as to extend in front of the tooth profile in the area that is shielded by the guiding means, and via which cooling lubricant can be supplied to the contact area through the guiding means. 1. A device for covering a tooth profile during machine-processing with a tool , comprising an appliance for applying cooling lubricant to at least one contact area between the tool and the tooth profile during machined processing of the tooth profile by means of the tool , wherein the appliance has a guiding means with which a front face of the tooth profile in an area that is facing towards the contact area and an environment of the tooth profile in front of the area can be covered at least partially , wherein the appliance is embodied with at least one conduit , which—in the operative state of the guiding means in which it covers the tooth profile—is arranged in the area that is shielded by the guiding means so as to extend in front of the tooth profile , and via which cooling lubricant can be supplied to the contact area through the guiding means.2. The device according to claim 1 , wherein claim 1 , in its operative state in which it covers the tooth profile claim 1 , the guiding means delimits at least one channel that is open towards the tool and that can be arranged so as to be at least partially aligned with a tooth ...

Method for Dressing a Honing Tool and Method for Honing a Toothed Wheel

A method for dressing a honing tool using a dressing tool which during the dressing operation rolls at an axial intersection angle with the honing tool. The teeth thereof which move into engagement with the teeth of the dressing tool each have an upper face which is intended to be dressed and tooth flanks which are also to be dressed. 1. A method for dressing a honing tool for the fine machining of the teeth of a toothed wheel , comprising: applying a dressing tool such that , during a dressing operation with the honing tool to be dressed , the dressing tool continuously rolls at an axial intersection angle so that teeth which are formed on the dressing tool move into engagement with teeth which are formed on the honing tool , each of the teeth formed on the honing tool having an upper face to be dressed and tooth flanks which are also to be dressed , wherein in at least one positioning of the dressing tool both the upper faces and the tooth flanks of the honing tool are processed , and wherein using tooth base rounded portions which are provided on the teeth of the dressing tool , step-free transitions from the tooth flanks to the upper faces are modeled on the honing tool.2. The method according to claim 1 , wherein the honing tool is an internally toothed honing ring.3. The method according to claim 1 , wherein the honing tool is an externally toothed cylinder wheel.4. The method according to claim 1 , wherein a geometry of the tooth base rounded portions of the teeth of the dressing tool corresponds to a desired geometry of the teeth of the toothed wheel which is to be processed with the honing tool in each case claim 1 , in the completely processed state.5. The method according to claim 4 , wherein an entire geometry of the teeth of the dressing tool corresponds to the desired geometry of the teeth of the toothed wheel which is to be processed with the honing tools in the completely processed state.6. The method according to claim 4 , wherein the desired ...

TOOL HOLDER AND ATTACHMENT HEAD HAVING SAID TOOL HOLDER

There is shown a tool holder for a hob, which is embodied as a bore having a clamping device provided between a spindle and a counterholder, the clamping device having a centring clamping piece that is engageable in the hob and a receiving mandrel that is engageable in the hob, the receiving mandrel being braced with the centring clamping piece in order to mount the hob, wherein the centring clamping piece has a flange. In order to ensure the best concentric running properties in a stable manner, it is proposed that the centring clamping piece and the receiving mandrel each have a flange, which each mount a radial adjusting drive with at least one adjusting member that is adjustable with respect to the spindle and/or the counterholder in order to centre the clamping device. 1341042930510536106351053510534355105610634353637383929304104: Tool holder for a hob () in a bore design , having a clamping device ( , ) provided between a spindle () and a counter-holder () , which device has a centering clamping piece ( , ) that can engage into the hob () and an arbor ( , ) that can engage into the hob () , which arbor is braced together with the centering clamping piece ( , ) in order to mount the hob () , wherein the centering clamping piece ( , ) has a flange ( , ) , wherein centering clamping piece ( , ) and arbor ( , ) each have a flange ( , ) that each support a radial setting drive ( , ) having at least one setting element ( , ) that can be adjusted against the spindle () or the counter-holder () , for centering the clamping device ( , ).2293034355105610638392930: Tool holder according to claim 1 , wherein the spindle () and/or the counter-holder () is/are fitted into the respective flange ( claim 1 , ) of centering clamping piece ( claim 1 , ) or arbor ( claim 1 , ) claim 1 , and the setting element ( claim 1 , ) can be radially adjusted against the spindle () or the counter-holder ().336373839: Tool holder according to claim 2 , wherein the radial setting drive ( ...

GEAR MANUFACTURING MACHINE

A gear manufacturing machine for which a machining tool detachably attached to a tool spindle is exchanged by means of an automatic tool changer, wherein the automatic tool changer is provided with: tool holding means for detachably holding a machining tool to be exchanged; moving means for moving the tool holding means in a direction parallel to the axial direction of the tool spindle; and rotating means for rotating the tool holding means. 17.-. (canceled)8. A gear manufacturing machine comprising an automatic tool changer that exchanges a machining tool mounted on a tool spindle in a removable state , the automatic tool changer including:tool holding means for holding the machining tool in a removable state;moving means for moving the tool holding means between a tool exchanging position for exchanging the machining tool and a standby position in which the machining tool stands by during machining operations, in a direction parallel to an axial direction of the tool spindle; androtating means for rotating the tool holding means between the standby position and a tool loading/unloading position for loading and unloading the machining tool.9. The gear manufacturing machine according to claim 8 , whereinthe automatic tool changer includes raising and lowering means for raising and lowering the tool holding means in a vertical direction.10. The gear manufacturing machine according to claim 8 , whereinthe tool holding means includes positioning means for positioning the machining tool in a circumferential direction.11. The gear manufacturing machine according to claim 8 , whereinthe automatic tool changer includes tool presence detecting means for detecting whether or not the tool holding means is holding the machining tool.12. The gear manufacturing machine according to claim 8 , whereinthe rotating means rotates the tool holding means around a vertical rotation axis.13. The gear manufacturing machine according to claim 8 , further comprising:a column supported on a ...

METHOD FOR DEBURRING BEVEL GEARS AND CNC GEAR-CUTTING MACHINE HAVING CORRESPONDING SOFTWARE FOR DEBURRING

A method for deburring bevel gears using a deburring tool, which comprises at least one cutting edge, having the following steps: 1. A method comprising: rotationally driving the deburring tool around a deburring spindle axis,', 'rotationally driving the bevel gear around a workpiece spindle axis in a coupled manner with said rotationally driving the deburring tool using an inverse coupling transmission ratio,', 'executing a relative flight movement of the at least one cutting edge relative to the bevel gear, wherein the relative flight movement is defined by a hypocycloid, and', 'removing at least one burr located at or near one or more of the bevel gear heel or the bevel gear toe from at least one of the at least one tooth edge by cuttingly contacting the at least one cutting edge with the at least one of the at least one tooth edge., 'deburring in a continuous method a bevel gear defining a bevel gear heel, a bevel gear toe, at least one tooth and at least one tooth gap defining at least one tooth edge, by using a deburring tool including at least one cutting edge, the deburring step comprising2. A method according to claim 1 , wherein the at least one tooth includes a tooth base and a tooth head claim 1 , and the executing step includes executing the relative flight movement of the at least one cutting edge in the at least one tooth gap from at or near the tooth base and in a direction towards the tooth head.3. A method according to claim 1 , wherein the inverse coupling transmission ratio is defined by a hypocycloid coupling.4. A method according to claim 1 , wherein the deburring tool defines a number of threads and the at least one tooth defines a number of teeth claim 1 , and the inverse coupling transmission ratio is defined by the number of teeth and the number of threads.5. A method according to claim 2 , including performing the cuttingly contacting step by said step of executing the relative flight movement of the at least one cutting edge in the at ...

SYSTEM AND METHOD FOR AUTOMATED MACHINING OF TOOTHED MEMBERS

A method for machining a workpiece to provide a toothed member having a desired tooth pattern. The workpiece is machined to a first depth using a cutting tool, thereby forming a semi-finished tooth pattern, the first depth less than a full depth to which the workpiece is to be machined to provide the desired tooth pattern. Dimensions of the semi-finished tooth pattern are acquired and compared to nominal dimensions. If the acquired dimensions are not within a tolerance of the nominal dimensions, the geometry of the cutting tool is modified for correcting deviations of the acquired dimensions from tolerance and the workpiece further machined by the modified cutting tool. Once the dimensions of the semi-finished tooth pattern are within tolerance, the workpiece is machined to the full depth for providing the desired tooth pattern. 1. A method for machining from a workpiece a toothed member with a desired tooth pattern , the method comprising:machining the workpiece to a predetermined partial depth using a cutting tool to provide a semi-finished tooth pattern created according to a geometry of the cutting tool, the predetermined partial depth less than a full depth of the desired tooth pattern;comparing computed parameters of the semi-finished tooth pattern based on dimensions of the semi-finished tooth pattern to nominal parameters of the semi-finished tooth pattern and determining whether the computed parameters are within a predetermined tolerance of the nominal dimensions for the semi-finished tooth pattern at the predetermined partial depth;modifying the geometry of the cutting tool to correct deviations of the computed parameters from the tolerance when the computed parameters are not within the predetermined tolerance of the nominal dimensions, and machining the workpiece with the modified cutting tool to bring the dimensions of the semi-finished tooth pattern within the tolerance for the semi-finished tooth pattern at the predetermined partial depth; ...

Apparatus and method for inspecting and/or measuring gear wheels

An apparatus for inspecting and/or measuring a gear wheel workpiece, which comprises: a first workpiece spindle for fastening and rotationally driving the gear wheel workpiece, a rotational drive for rotationally driving the gear wheel workpiece when it is fastened on the first workpiece spindle, measuring means for inspecting and/or measuring the gear wheel workpiece when it is fastened on the first workpiece spindle, wherein the rotational drive is designed to rotationally drive the gear wheel workpiece including the first workpiece spindle during a measurement and/or inspection phase, while the measuring means is used for inspecting and/or measuring the gear wheel workpiece, rotationally drive the gear wheel workpiece including the workpiece spindle during a spinning phase to spin off a liquid.

APPARATUS AND METHOD FOR WORKPIECE MACHINING ON A GEAR CUTTING MACHINE

The present disclosure relates to an apparatus for use in a gear cutting machine for the gear-coupled manufacture or machining of workpieces having at least one machine table at which a workpiece spindle is arranged for holding a clamping apparatus for a workpiece, and having at least one tool spindle for holding a machining tool, wherein the tool spindle is equipped with an integrated balancing system for balancing the tool. In accordance with the present disclosure, a further independent balancing system for the workpiece spindle is integrated in addition to the balancing system in the tool spindle. 1. An apparatus for use in a gear cutting machine for a gear-coupled manufacture or machining of workpieces having at least one machine table at which a workpiece spindle is arranged for holding a clamping apparatus for a workpiece , and having at least one tool spindle for holding a machining tool , wherein the tool spindle is equipped with an integrated balancing system for balancing the tool , whereina further independent balancing system for the workpiece spindle is integrated in addition to the balancing system in the tool spindle.2. The apparatus in accordance with claim 1 , wherein the balancing system at the machine table is integrated in the tool spindle or in a table plate or in the workpiece clamping apparatus.3. The apparatus in accordance with claim 1 , wherein the balancing systems are designed with at least one respective acceleration sensor per balancing system and per balancing plane.4. The apparatus in accordance with claim 1 , wherein the balancing systems are designed with a respective at least two acceleration sensors per balancing system claim 1 , with the sensors being arranged radially and/or axially spaced apart with respect to the spindle and/or claim 1 , on a presence of a plurality of sensors per spindle claim 1 , they are arranged radially at different angles with respect to the spindle and/or additionally being differently axially spaced ...

DRESSING DEVICE AND GEAR GRINDING DEVICE

This dressing device has: a gear grinding tool spindle () that rotatably supports a screw-shaped grindstone (); and a dressing tool () that dresses the screw-shaped grindstone (). The dressing device dresses the screw-shaped grindstone () by driving the screw-shaped grindstone () to rotate, and causing the relative motion of the screw-shaped grindstone () and/or the dressing tool (). The dressing device performs a dressing process on the screw-shaped grindstone () in a manner such that the pressure angle changes along the direction of the tooth line by means of moving the screw-shaped whetstone () and/or dressing tool () at a fixed speed and altering the speed of rotation of the screw-shaped grindstone (), or rotating the screw-shaped grindstone () at a fixed speed and altering the speed of motion in the axial direction of the screw-shaped grindstone () and/or the dressing tool (). 1. A dressing device characterized in that a gear grinding tool spindle by which a threaded grinding wheel used for machining of a gear is rotatably supported; and', 'a dressing tool which is rotatably supported parallel to the gear grinding tool spindle and which dresses the threaded grinding wheel,, 'the dressing device comprisesthe dressing device being configured to dress the threaded grinding wheel by: rotationally driving the threaded grinding wheel; bringing the threaded grinding wheel and the dressing tool into contact with each other; and moving at least one of the threaded grinding wheel and the dressing tool relative to each other in an axial direction of the threaded grinding wheel and the dressing tool, whereina dressing process is performed on the threaded grinding wheel such that a pressure angle varies in a tooth trace direction, the dressing process performed by: changing a rotating speed of the threaded grinding wheel while moving at least one of the threaded grinding wheel and the dressing tool in the axial direction at a constant speed; or changing a moving speed of at ...

Method for automated positioning of a toothed workpiece and manufacturing system for carrying out the method

A method for automated positioning of a toothed workpiece, having the following method steps: providing a toothed workpiece, which has a machine-readable, workpiece-specific marking, such as a QR code, a barcode, an RFID tag, or the like; attaching the toothed workpiece on a spindle of a CNC-controlled multiaxis machine; automatically acquiring the marking of the workpiece; ascertaining an actual position of the workpiece in relation to the multiaxis machine on the basis of the marking; transferring the workpiece from the actual position into a setpoint position in relation to the multiaxis machine, before a machining and/or measuring method is carried out in the multiaxis machine.

Method and Device for Precision Machining of Toothed and Hardened Work Wheels

A method for machining toothed and hardened work wheels, includes: mounting a work wheel that is hardened and pre-toothed with an allowance onto a workpiece spindle; removing at least 50% of the allowance by means of gear skiving with a skiving wheel that is rotatably driven by a tool spindle; precision-machining the work wheel in unchanged tension by means of a honing wheel. The forward movement occurs during gear skiving in the extension direction of the toothing. The delivery of the workpiece that is moved in an oscillating manner in the extension direction of the toothing occurs during honing in the radial direction. The skiving wheel and the honing wheel are driven by a common tool spindle. A device for carrying out the method includes a workpiece spindle, which is driven to rotate, and a tool spindle, which carries a combination tool having a skiving wheel and a honing wheel. 115.-. (canceled)16. A device for carrying out a method for machining a work wheel being prepared in an unhardened state with teeth having an allowance; being hardened to a surface hardness of at least 45 HRC and having a hardness distortion error less than the allowance , comprising:a workpiece spindle that is configured to be driven to rotate, the workpiece spindle having a chuck for chucking the work wheel to be machined;a tool spindle that is configured to be driven to rotate in synchronization with the workpiece spindle, the tool spindle holding a skiving wheel and a honing wheel; anda programmed electronic control unit controlling a rotational movement of the tool spindle and that of the workpiece spindle, a feed motion and a forward movement;wherein the control unit is equipped so that, after chucking said work wheel onto the workpiece spindle, at least 50% of the allowance is removable by gear skiving with the skiving wheel driven to rotate by the tool spindle, and then the work wheel is configured to be precision machined using the honing wheel driven to rotate by the tool ...

MACHINE TOOL FOR PRODUCING TOOTHED SECTIONS ON WORKPIECES

To produce toothed sections on workpieces, a machine tool has a machine bed, a pivoting element with at least two workpiece spindles arranged thereon and a tool positioning unit with a tool head. The spindles can be pivoted relative to the machine bed about a workpiece spindle pivot axis and each spindle has a workpiece receiver that can be rotatably driven about a rotational axis. The tool head can be linearly moved in three directions relative to the spindles, and can be pivoted about a tool head pivot axis. A bearing element extending in the direction of the workpiece spindle pivot axis, has a free end which is pivotable about the workpiece spindle pivot axis, and is rigidly arranged on the pivoting element. The reinforcing element is fastened to the machine bed. The pivoting element is reinforced about the workpiece spindle pivot axis by the reinforcing element. 1. A machine tool for producing toothed sections on workpieces , the machine tool comprising:a machine bed;a pivoting element with at least two workpiece spindles arranged thereon, wherein the at least two workpiece spindles are pivotable relative to the machine bed about a workpiece spindle pivot axis of the pivoting element, and the at least two spindles each have a workpiece receiver that is rotatably drivable about a rotational axis for a workpiece to be toothed;a tool positioning unit with a tool head arranged thereon, wherein the tool head is linearly movable relative to the at least two workpiece spindles in three directions, and the tool head is pivotable about a tool head pivot axis;a bearing element extending in the direction of the workpiece spindle pivot axis rigidly arranged on the pivoting element; and,a free end of the bearing element pivotably mounted about the workpiece spindle pivot axis on a reinforcing element, wherein the reinforcing element is fastened to the machine bed.2. A machine tool according to claim 1 , wherein the machine bed claim 1 , together with the pivoting element ...

FLEXIBLE AUTOMATION CELL FOR PERFORMING SECONDARY OPERATIONS IN CONCERT WITH A MACHINING CENTER AND ROLL CHECK OPERATIONS

An automation cell for performing a plurality of secondary operations on manufactured parts is for use with a manufacturing machine operable to perform primary manufacturing of the parts. The automation cell includes a cell housing, a robot with a gripper mechanism capable of loading and unloading a part between the manufacturing machine and the automation cell, a gauging station being a secondary operation device and operable to gauge a parameter of a manufactured part, a marking device for marking the manufactured part, and a vision system for verifying the marking of the manufactured part. 1. A method of performing a plurality of secondary operations on manufactured parts for use with a manufacturing machine operable to perform primary manufacturing of the parts , the method comprising: a cell housing;', 'a robot supported in the housing and having an elongated arm with a gripper mechanism disposed on the elongated arm;', 'a gauging station supported in the housing, the gauging station operable to gauge a parameter of a manufactured part; and', 'a marking device supported in the housing;', 'a vision system supported in the housing;, 'providing an automation cell havingpositioning the cell housing adjacent to the manufacturing machine to allow the robot arm to move a green part or a manufactured part between the cell housing and the manufacturing machine;retrieving the manufactured part from the manufacturing machine using the gripper mechanism of the robot;positioning the manufactured part in the gauging station;performing a gauging operation on the manufactured part within the cell housing and determining if the manufactured part meets a specification;marking the manufactured part within the cell housing using the marking device if the manufactured part meets the specification, the marking being an identification code; andusing the vision system to verify the marking within the cell housing.2. The method of claim 1 , wherein the gauging station is selected from ...

GEAR GRINDING APPARATUS PROVIDING TOOL MODIFICATION FUNCTION

A gear grinding apparatus comprises a work-piece stand, a tool stand, a grinding wheel assembly and a modification assembly. The work-piece stand has a first shaft to hold and rotate an unmodified gear. The tool stand is movable along a first axial direction against the work-piece stand and includes a slide member. The grinding wheel assembly is located on the slide member to grind the unmodified gear. The modification assembly is located on the slide member above the grinding wheel assembly and includes a rotary member rotatably mounted on the slide member and having a second shaft rotatable about an axis intersecting the second axial direction at an angle smaller than ninety degrees, a trimmer and a movable arm interposed between the rotary member and trimmer. The trimmer has an oblique deviation displacement and a tool modification displacement. The invention formed can reduce production cost and shrink apparatus size. 1. A gear grinding apparatus providing tool modification function , comprising:a work-piece stand including a first shaft to hold and rotate an unmodified gear;a tool stand which is located at one side of the work-piece stand and movable against thereof along a first axial direction, and includes a slide member movable along a second axial direction perpendicular to the first axial direction;a grinding wheel assembly located on the slide member to grind the unmodified gear; anda modification assembly which is located on the slide member above the grinding wheel assembly and includes a rotary member rotatably mounted on the slide member and having a second shaft rotatable about an axis intersecting the second axial direction at an angle smaller than ninety degrees, a trimmer and a movable arm interposed between the rotary member and the trimmer;wherein the trimmer includes an oblique deviation displacement in which the grinding wheel assembly is in contact with the unmodified gear to perform machining and the rotary member drives the movable arm to ...

ADJUSTING DEVICE FOR A GEAR CUTTING MACHINE WITH A REDUCED TENDENCY TO VIBRATE

An adjusting device for a machine tool comprises a base body (), a movable body () movable along a moving direction (X) relative to the base body, and a drive () for moving the movable body relative to the base body. In order to effectively damp vibrations between the movable body and the base body (in particular so-called stray vibrations) and yet still enable rapid positioning movements of the movable body relative to the base body, the adjusting device comprises an auxiliary body () which can be releasably fixed to the base body and, in the released state, can be moved together with the movable body relative to the base body. The adjusting device also comprises at least one vibration damper () which is arranged between the auxiliary body and the movable body.

METHOD FOR MACHINING GEAR WHEEL WORKPIECES

Method for the chip-producing machining of a gear wheel workpiece in a machine using a cutting tool having at least two geometrically defined cutting edges, which produce material in chip form on the gear wheel workpiece during chip-producing machining, wherein the chip-producing machining is defined by method parameters, the method including computer-assisted analysis of the production of chips on the multiple cutting edges of the cutting tool; computer-assisted ascertainment of relative forces which will occur on the multiple cutting edges of the cutting tool during the production of chips; optimizing the chip-producing machining to prevent the relative forces from exceeding a predetermined limiting value or reaching a limiting range, wherein adapted method parameters are provided in the scope of the optimization by an adaptation of at least one of the method parameters, and carrying out the chip-producing machining of the gear wheel workpiece using the adapted method parameter(s). 1. A method comprising:chip-producing machining of a gear wheel workpiece in a machine using a cutting tool comprising at least two geometrically-defined cutting edges configured to produce material in chip form from the gear wheel workpiece during said chip-producing machining, wherein the chip-producing machining is defined by method parameters;the method further comprising:(1) computer-assisted analysis of production of chips by the cutting edges of the cutting tool;(2) computer-assisted prediction of forces on the cutting edges of the cutting tool during the production of chips;(3) optimizing said chip-producing machining including modifying at least one of the method parameters such that the forces do not exceed a predetermined value or are not within a defined range; and(4) performing said chip-producing machining of the gear wheel workpiece using said modified at least one of the method parameters.2. The method according to claim 1 , further comprising claim 1 , during steps (1 ...

FLEXIBLE AUTOMATION CELL FOR PERFORMING SECONDARY OPERATIONS IN CONCERT WITH A MACHINING CENTER AND ROLL CHECK OPERATIONS

An automation cell incorporating elements for performing secondary operations on a machined part is adapted to be disposed adjacent to a machining center for performing the primary operations on the part. The cell incorporates a robotic arm capable of being moved into position with respect to the machining center so as to load machined parts into the machining center and unload primarily machined parts for the performance of secondary operations in the cell. In a preferred embodiment the automation cell performs roll check operations on the primarily machined gear by bringing it into meshed engagement with a master gear and rotating the meshed gears and employing a sensor to monitor the roll-out of the machined gear. 1. An automation cell for performing secondary operations on a machined part for use with a machining center for performing primary machining of the part , the automation cell comprising:a cell housing;a robot supported in the cell housing and comprising an elongated arm and a servo controlled gripper mechanism disposed on an end of the arm;the housing being adapted to be positioned adjacent to said machining center which performs a primary machine operation on the part and the robotic arm being supported so that the gripper disposed end moves between the housing and the machining center to allow parts to be moved between the machining center and the housing; andan operating assembly supported in the housing for performing secondary operations on parts after they have been machined in the machining center.2. The automation cell of wherein the secondary operations performed in the cell on parts initially machined in the machine center include checking operations on the primary machining operation performed by the machining center on the parts.3. The automation cell of wherein the gripper mechanism supported on the end of the robotic arm can support two parts simultaneously so that a part to be machined can be loaded into the machining center and a part ...

METHOD FOR MACHINING THE TOOTH FLANKS OF BEVEL GEAR WORKPIECES

A method for machining the tooth flanks of a bevel gear workpiece includes carrying out correction machining of a concave tooth flank and a convex tooth flank of at least one tooth gap by, after machining using a first machine setting, cutting free of the concave tooth flank by the bevel gear workpiece executing a workpiece rotation in a first rotational direction having a predefined first absolute value in relation to a gear-cutting tool and/or cutting free the convex flank by the bevel gear workpiece executing a workpiece rotation in another rotational direction having a predefined second absolute value in relation to the gear-cutting tool, and finish machining the concave tooth flank using a second machine setting, which differs from the first machine setting, and finish machining the convex tooth flank using a third machine setting, which differs from the second machine setting. 1. A method for machining the tooth flanks of a bevel gear workpiece comprising the following steps:a) rotationally driving a gear-cutting tool and machining a bevel gear workpiece using a chip removal process including plunging the gear-cutting tool into the workpiece using a first machine setting up to a predefined depth into material of the bevel gear workpiece to machine a concave tooth flank and a convex tooth flank of at least one tooth gap of the bevel gear workpiece, and (i) one or more of (1) cutting free the concave tooth flank including rotating the workpiece in a first rotational direction to an angle defined by a predefined first absolute value relative to the gear-cutting tool; or (2) cutting free the convex tooth flank including rotating the workpiece in another rotational direction to an angle defined by a predefined second absolute value relative to the gear-cutting tool, thereby enlarging a gap width of the at least one tooth gap, and', '(ii) finish machining the concave tooth flank using a second machine setting, which differs from the first machine setting, and', '( ...

Method and device for automated machining of gearwheel components

A manufacturing environment having a machine tool, a measuring device, a storage medium, and having a computer programmed to control: a) chip producing machining of a first workpiece in a machine tool, b) acquiring at least two machine parameters of the machine tool during the chip producing machining of the first workpiece, c) storing the machine parameters in the storage medium, wherein the storing is performed with assignment to the first workpiece, and d) repeating steps a) to c) for a number of n workpieces; and, after one of steps a) to d), or later, triggering a testing method including: (i) selecting at least one of the workpieces, (ii) performing an automated test of the at least one selected workpiece using the measuring device, or (iii) performing a processor-controlled evaluation of the automated test to classify the at least one selected workpiece as a good part, or a reject part.

METHOD, SYSTEM AND APPARATUS FOR MACHINING GEARWHEELS

A method for machining a gearwheel by means of stock removal using a numerical-control machine tool with at least five machining axes Also described are an apparatus for producing commands and a machining system which comprises a machine tool with at least five axes, data input means and calculation and processing and command units. 1. Method for machining a gearwheel by means of stock removal using a numerical-control machine tool with at least five machining axes , comprising steps of:defining theoretical prefinishing surfaces and theoretical finishing surfaces of the gearwheel;calculating a line of intersection between the theoretical prefinishing surface and the finishing surface;using as real prefinishing surface the theoretical prefinishing surface and as real finishing surface for each tooth of the gearwheel a part of the theoretical finishing surface situated between a tip of the tooth and the line of intersection;performing a first gearwheel machining operation where tools follow first machining surfaces so as to form the real prefinishing surface and then performing a second gearwheel machining operation where tools follow second machining surfaces so as to form the real finishing surface.2. The method according to claim 1 , wherein the theoretical prefinishing surface and the theoretical finishing surface are defined as surfaces theoretically generated respectively by a theoretical prefinishing rack and by a theoretical finishing rack.3. The method according to claim 1 , further comprising between the first and second gearwheel machining operations a step for heat treatment of the gearwheel.4. The method according to claim 1 , comprising checking claim 1 , before performing the machining operations claim 1 , that the intersection line is situated at a distance from an axis of the gearwheel claim 1 , wherein said distance is smaller than an active radius of the gearwheel.5. The method according to claim 1 , further comprising a step for checking claim 1 , ...

CUTTER HEAD AND USE THEREOF

Cutter head for accommodating multiple cutters, wherein the cutter head has a separate receptacle opening for each of the cutters, and wherein the cutter head comprises clamping means for clamping the cutters in the receptacle openings. A cavity is implemented in the cutter head in the region of at least one of the receptacle openings, which is separated by a thin wall or layer from this receptacle opening, and the cavity can be filled with a fluid and a pressure can be applied thereto. 1. A cutter head configured to accommodate multiple cutters , the cutter head comprising:at least one receptacle opening configured to receive a cutter;a clamping means for clamping the cutter in the at least one receptacle opening; anda cavity in the cutter head adjacent to the at least one receptacle opening and separated therefrom by a thin wall or layer, and configured to be filled with a fluid and pressure applied thereto.2. The cutter head according to claim 1 , wherein the cavity extends in material of the cutter head either (i) parallel to a longitudinal axis of the at least one receptacle opening claim 1 , (ii) transversely to the longitudinal axis claim 1 , or (iii) diagonally to the longitudinal axis.3. The cutter head according to claim 1 , wherein the cutter head comprises a main body having an end face claim 1 , and the at least one receptacle opening extends from the end face and into the main body.4. The cutter head according to claim 3 , wherein the cavity is accessible from the end face claim 3 , and extends perpendicularly to or diagonally to the end face into the main body.5. The cutter head according to claim 3 , wherein the main body defines a circumferential surface claim 3 , and the cavity is accessible from the circumferential surface and extends parallel to the end face or diagonally into the main body.6. The cutter head according to claim 1 , wherein the thin wall or layer is located between a section of the at least one receptacle opening and a section of ...

Multi-function, large-scale gear milling machine

Disclosed is a multi-function, large-scale gear milling machine, at least comprising: a milling machine body; a workbench fixedly connected to the milling machine body and arranged along the milling machine body; a flat rotary table for clamping a disc-shaped gear, wherein the flat rotary table is eccentrically embedded in the workbench and the surface of the flat rotary table is basically of equal height to the workbench; an vertical rotary table provided at one end of the workbench, a centre frame or tailstock being provided at the other end of the workbench, wherein the centre frame or tailstock has the same axis as the vertical rotary table, and the vertical rotary table cooperates with the centre frame or tailstock to clamp a shaft gear; and a fork-shaped cutter head for mounting a disc-shaped milling cutter, wherein the fork-shaped cutter head is provided on a moving base such that the fork-shaped cutter head can move in three translational degrees of freedom relative to a workpiece and an included angle between an axis of a cutting tool and an axis of the workpiece can be adjusted accordingly, the moving base being connected to the milling machine body.

METHOD FOR MONITORING THE MACHINE GEOMETRY OF A GEAR CUTTING MACHINE AND AN APPARATUS WITH A GEAR CUTTING MACHINE, A MEASURING DEVICE AND A SOFTWARE MODULE

A method for monitoring the machine geometry of at least one gear cutting machine (), having the following steps: 112-. (canceled)13. A method for monitoring a machine geometry of at least one gear cutting machine , the method comprising the following steps:a) measuring a workpiece in a measuring device and determining measurement data therefrom, wherein the workpiece was previously machined in the machine on a basis of specification data;b) correlating the measurement data with the specification data and determining a deviation of a geometric setting of at least one axis of the machine;c) storing the deviation of the geometric setting;d) repeating steps a)-c) after machining further workpieces in the machine;e) performing a statistical evaluation of multiple of the stored deviations and determining a change in at least one reference dimension of the at least one axis of the machine based at least in part on at least one predefined condition and/or rule.14. A method according to claim 13 , including performing said determining a change in at least one reference dimension of the at least one axis at regular or irregular intervals.15. A method according to claim 13 , further comprising initiating a preselected or predetermined action upon occurrence of a deviation in the at least one reference dimension that is predefined as distinct deviation therein.16. A method according to claim 13 , wherein the statistical evaluation includes a statistical long-term evaluation of a number of m workpieces and a statistical short-term evaluation of a number of n workpieces claim 13 , wherein n Подробнее

METHOD FOR THE GEAR MANUFACTURING MACHINING OF A WORKPIECE

The present disclosure relates to a method for the gear manufacturing machining of a workpiece in which a hobbing machining of the workpiece takes place to generate a gearing geometry of the workpiece, wherein the workpiece is gear manufacturing machined by gear skiving in addition to the hobbing machining. 1. A method for the gear manufacturing machining of a workpiece , comprising the steps:hobbing machining of the workpiece to generate a gearing geometry of the workpiece, and gear manufacturing machining of the workpiece by gear skiving.2. The method in accordance with claim 1 , wherein the hobbing machining and the gear skiving take place with the same gear cutting machine claim 1 , wherein the hobbing machining and the gear skiving take place using the same fixture of the workpiece in a workpiece holder of the gear cutting machine and/or with a hobbing tool used for hobbing machining and a gear skiving tool used for gear skiving held in the same tool holder of the gear cutting machine and/or traveled by the axes of the same machining head of the gear cutting machine at least on the carrying out of the respective machining step.3. The method in accordance with claim 2 , wherein the hobbing tool and the gear skiving tool are fixed on the same tool arbor and/or wherein the gear cutting machine has two tool holders arranged at a machining head and/or an automatic tool changer for changing between the hobbing tool and the gear skiving tool.4. The method in accordance with claim 1 , wherein a feed movement of the hobbing tool and the gear skiving tool respectively takes place in parallel with an axis of the workpiece holder in at least one of the hobbing machining or in the gear skiving claim 1 , wherein a rotational movement of the workpiece holder is coupled to the feed movement and/or to a rotational movement of the tool holder.5. The method in accordance with claim 1 , wherein the machining head of the gear cutting machine is pivoted relative to the axis of the ...

GEAR PROCESSING MACHINE HAVING A BELLOWS

The invention relates to a toothing processing machine comprising a machine frame and a spindle carrier having a first spindle. The spindle comprises a first spindle housing and a first spindle shaft, which is arranged in the first spindle housing such that it can rotate about a first spindle axis, and a free end for receiving a work piece or a tool. A second spindle is also provided having a second spindle housing and a second spindle shaft for receiving a tool or work piece, wherein the second spindle shaft is mounted in the second spindle housing such that it can rotate about a second spindle axis. In addition, at least one wall of the machine frame forms a part of the casing of a closable working chamber, in which the work piece can be processed and which can be closed in order to prevent the release of a material removal, a processing liquid and/or a processing mist from the working chamber into other machine regions or to the outside. The spindle carrier is also arranged on the machine frame such that it can move in the direction of the first spindle axis. In addition, the closable working chamber includes the free end of the first spindle shaft and at least sections of the second spindle shaft. According to the invention, the toothing processing machine comprises a bellows, securely connected to the spindle carrier on a first side and to the at least one wall of the machine frame on a second side, wherein the bellows borders the closable working chamber at at least one point in such a way that a part of the spindle carrier is permanently positioned outside of the working chamber. In this way, the bellows is able to commence a relative movement in the direction of the first spindle axis between the spindle carrier and the machine frame, via a moving apart and together. 119-. (canceled)20. A gear processing machine , in particular a gear hard finishing machine , comprising:a) a machine frame,b) a spindle slide having a first spindle, which comprises a first ...

DEVICE AND METHOD FOR FINISH MACHINING OF GEARWHEEL WORKPIECES

A machine tool () for machining a gearwheel workpiece (), having: a tool spindle () for fastening a tool (), a workpiece spindle () for fastening the gearwheel workpiece (), a CNC controller () and multiple axes for the CNC-controlled machining of the gearwheel workpiece () using the tool (), an optical detector () to acquire image information (BI) of the gearwheel workpiece (), and a module (), which is designed to ascertain characteristic actual parameters of the gearwheel workpiece () based on the image information (BI) of the gearwheel workpiece (). 1. A method comprising:machining a toothed gearwheel workpiece using a machine tool including a sensor configured to acquire geometry information, a tool located on a tool spindle, and a workpiece spindle, wherein the gearwheel workpiece is located on the workpiece spindle, and the method includes the following steps:a) acquiring, with a sensor including an optical detector, image information of the gearwheel workpiece without physical contact of the sensor therewith,b) ascertaining at least one characteristic actual parameter of the gearwheel workpiece based on the image information,c) machining at least one flank of the gearwheel workpiece using the tool, wherein said machining includes moving the tool into a tooth gap of the gearwheel workpiece without contact therewith using said at least one characteristic actual parameter, wherein the at least one flank is machined by relative movement of the tool and the gearwheel workpiece.2. The method according to claim 1 , wherein the optical detector is configured to acquire image information of at least a part of the gearwheel workpiece.3. The method according to claim 2 , further including claim 2 , during the acquiring step claim 2 , executing relative movement between the detector and the gearwheel workpiece to acquire image information of a region of the gearwheel workpiece larger than the imaging region of the detector.4. The method according to claim 2 , wherein ...