Cam Grooving Machine

A device for cold working pipe elements has two or more cams, each having a gear which meshes with a pinion to turn all of the cams. Each cam has a cam surface with a region of increasing radius and may have a region of constant radius extending around a cam body. Each cam also has a traction surface extending around a cam body. A discontinuity in each cam surface is aligned with a gap in the traction surface of each cam. The discontinuities and gaps provide clearance for insertion and removal of the pipe element between the cams to form a circumferential groove when the cams are rotated. 1. A cam for cold working a pipe element , said cam comprising:a cam body having an axis of rotation;a cam surface extending around said cam body, said cam surface comprising a region of increasing radius and a discontinuity of said cam surface, said radius being measured about and from said axis of rotation;a traction surface extending around said cam body, said traction surface comprising a plurality of projections extending transversely to said axis of rotation, said traction surface having a gap therein, said gap being aligned axially with said discontinuity of said cam surface.2. The cam according to claim 1 , wherein said cam surface further comprises a region of constant radius positioned adjacent to said discontinuity.3. The cam according to claim 1 , wherein said traction surface overlies said cam surface.4. The cam according to claim 1 , wherein said traction surface is positioned on said cam body in spaced relation to said cam surface.5. The cam according to claim 1 , further comprising a gear mounted on said cam body coaxially with said axis of rotation.6. The cam according to claim 5 , wherein said cam surface is positioned between said gear and said traction surface.7. The cam according to claim 6 , wherein said cam surface is positioned proximate to said traction surface.8. The cam according to claim 1 , wherein said traction surface has a constant radius measured ...

METHOD AND PRODUCTION LINE FOR MACHINING A CRANKSHAFT

A method for completely machining at least unprocessed centric journals () and crankpin journals (), and the respective flat shoulders () thereof surrounding the journals, of flanged or cast blanks of a crankshaft first includes turning the flat shoulders () associated with the journals (). Then, the centric journals () are roughly ground without the flat shoulders () thereof and the crankpin journals () are roughly ground together with the flat shoulders () thereof. After the journals () have been roughly ground, an allowance remains that is smaller than an allowance required for common finish grinding of journals and flat shoulders. The rough grinding is followed by the finish grinding of the centric journals () and the crankpin journals () from the smaller allowance () remaining due to the rough grinding to the final dimension. 1. Method of complete machining at least of unmachined central journals and crankpin journals as well as the respective flat shoulders of forged or cast blanks of a crankshaft which surround the journals , wherein the method comprises:a) first of all the flat shoulders associated with the central journal are turned;{'b': '12', 'b) then the central journals without their flat shoulders and the crankpin journals with their flat shoulders () are rough-ground, wherein an oversize remaining after the rough grinding of the journals and necessary for the finish grinding is smaller than the remaining oversize which is necessary if the rough grinding of the flat shoulders takes place after the usual procedure by rough grinding, turn broaching or trochoidal milling; and'}c) thereafter the central journals and the crankpin journals are finish-ground to the final dimension from the smaller oversize achieved by the rough grinding.2. Method as claimed in claim 1 , wherein the flat shoulders of the pin bearings are finish-ground to the final dimension from the smaller oversize left by the rough grinding.3. Method as claimed in claim 1 , wherein the flat ...

SHELL AND TUBE HEAT EXCHANGER, FINNED TUBES FOR SUCH HEAT EXCHANGER AND CORRESPONDING METHOD

A shell and tube longitudinal flow heat exchanger comprising a containment casing within which a first fluid can flow substantially parallel to the longitudinal axis of said casing, said containment casing accommodating in its interior a bundle of tubes substantially parallel to one another and parallel to the longitudinal axis of said casing and a plurality of grid-shaped baffles substantially transverse to the longitudinal axis of said casing supporting said tubes, a second fluid flowing in said bundle of tubes. Said tubes are provided on at least a part of their outside surface with a plurality of low fins, which are helically arranged on the outer surface of said tubes with a first angle of advancement a and having a profile interrupted by helical grooves having a second angle of advancement β, with α≠β. 1. A method for manufacturing a finned tube using a machine comprising a working assembly and at least one support assembly , said first working assembly comprising a first rotating finning tool and a second rotating finning tool mounted in sequence on a same driving axis , said first rotating finning tool being provided with a first helical working profile having a first angle of advancement αand said second rotating finning tool being provided with a second helical working profile having a second angle of advancement α , with α# α , the method comprising advancing said tube on a plane defined by said support assembly , forming a first fin on said tube by said first rotating finning tool , forming a second fin on said tube by said second rotating finning tool , the formation of said second fin being immediately subsequent to the formation of said first fin , and a height h of said first fin being lower than a height H of said second fin.2. The method for manufacturing a finned tube according to claim 1 , characterized in that the relative angle between said first angle of advancement αand said second angle of advancement αis between 30° and 60° claim 1 , and in ...

Rolling Device for Rolling Work Pieces Having a Toothing, and Associated Method

The invention relates to a rolling device for rolling work pieces with toothing, in particular gear wheels, with (g) a first shaping tool ( 14.1 ), (h) at least one second shaping tool ( 14.2 ) and at least one guide ( 16 ) designed for the guided movement of the shaping tools ( 14.1, 14.2 ) relative to a work piece, such that a first region (B 1 ) of a tooth flank ( 38 ) of the work piece can be shaped with the first shaping tool ( 14.1 ), (i) wherein the first shaping tool ( 14.1 ) has a first roller ( 46.1 ) that is rotatably mounted about a first tool rotational axis (D 14.1 ), (j) wherein the second shaping tool ( 14.2 ) has a second roller ( 46.2 ) that is rotatably mounted about a second tool rotational axis (D 14.2 ) and (k) wherein the first roller ( 46.1 ) has a first effective axial thickness (d 1 ) on the circumference thereof. According to the invention, the second roller ( 46.2 ) has a second effective axial thickness (d 2 ) on the circumference thereof, which differs from the first effective axial thickness (d 1 ) such that a second region (B 2 ) of the tooth flank ( 38 ) that is different from the first region can be shaped with the second shaping tool ( 14.2 ).

SYSTEM AND METHOD OF FORMING A METALLIC CLOSURE FOR A THREADED CONTAINER

An apparatus and methods of forming a metallic closure for a metallic bottle are provided. The present disclosure provides a pre-formed metallic closure and apparatus and methods of forming the metallic closure. The metallic closure can be reformed with a peripheral channel before the metallic closure is positioned on a metallic bottle. An inner tool and an outer tool can form the channel in one operation. Optionally, a thread can be formed on a metallic closure prior to use of the metallic closure to seal a metallic bottle. A capping apparatus of the present disclosure uses less force to seal a metallic bottle with a metallic closure of the present disclosure compared to the force required with a prior art ROPP closure. Accordingly, a metallic closure of the present disclosure can seal a metallic bottle formed of less material (such as by being thinner) than prior art metallic bottles. 1. An apparatus to form a metallic closure having a closed end-wall and a cylindrical body , comprising:a tool operable to apply a force to the cylindrical body;a mandrel having a body portion sized to fit at least partially into a hollow interior of the cylindrical body; andat least one depression formed in the mandrel body portion, the depression having a geometry configured to form a thread on the cylindrical body of the metallic closure as the tool applies a side-load to the mandrel body portion.2. The apparatus of claim 1 , further comprising tools to form a channel around an upper perimeter edge of the closed end-wall of the metallic closure claim 1 , the tools including:{'claim-text': ['a body portion with a sidewall that is generally cylindrical;', 'a projection with a reduced diameter extending from an end of the body portion; and', 'an end-wall of the projection configured to apply a force to an interior surface of the closed end-wall of the metallic closure; and'], '#text': 'an inner tool comprising:'}an outer tool with a body and a cavity formed in the body, the cavity ...

Cam Grooving Machine

A device for cold working pipe elements has two or more cams, each having a gear. The gears turn synchronously with one another. Each cam has a cam surface with a region of increasing radius and may have a region of constant radius extending around a cam body. Each cam also has a traction surface extending around a cam body. A discontinuity in each cam surface is aligned with a gap in the traction surface of each cam. The discontinuities and gaps provide clearance for insertion and removal of the pipe element between the cams to form a circumferential groove when the cams are rotated. 1. A device for cold working a pipe element , said device comprising:a housing;a plurality of gears mounted within said housing, said gears being synchronously rotatable relative to one other about respective axes of rotation, said axes of rotation being parallel to one another, said gears being positioned about a central space for receiving said pipe element;a plurality of cam bodies, each said cam body mounted on a respective one of said gears;a plurality of cam surfaces, each said cam surface extending around a respective cam body and being engageable with said pipe element received within said central space, each said cam surface comprising a region of increasing radius and a discontinuity of said cam surface, each of said radii being measured about and from a respective one of said axes of rotation;a traction surface extending around one of said cam bodies, said traction surface comprising a plurality of projections extending outwardly from said one cam body, said traction surface having a gap therein, said gap being aligned axially with said discontinuity of said cam surface surrounding said one cam body.2. The device according to claim 1 , wherein at least two of said gears engage a pinion mounted within said housing.3. The device according to claim 1 , further comprising a pinion mounted within said central space within said housing claim 1 , said pinion meshing with each gear ...

ROLLING TOOL

A rolling tool for the roller finishing of bearing surfaces of a crankshaft is pivotable around a crankshaft axis, with a finishing roller head and with a support roller head. In order to prevent damage to the guide mechanisms, the roller finishing roller is guided on all sides in a roller cage and the finishing roller head has a frame wherein it is mounted pivotably around a first pivot axis which is perpendicular to the crankshaft axis and parallel to a tangent on a working side of the roller finishing roller. Additionally or alternatively, the support roller head comprises a support roller frame in which the support roller housing is mounted pivotably around a second pivot axis perpendicular to the crankshaft axis and parallel to the first pivot axis, and around a third pivot axis perpendicular to the crankshaft axis and perpendicular to the first pivot axis. 111.-. (canceled)12. A rolling tool for the roller finishing of bearing surfaces of a crankshaft which is pivotable around a crankshaft axis , the rolling tool comprising:a finishing roller head; anda support roller head;wherein the finishing roller head has a roller finishing roller and a pressure roller mounted in a finishing roller head housing and supporting the roller finishing roller;wherein the support roller head has two supporting rollers which are mounted in a supporting roller housing and with which the crankshaft can be supported against a rolling force acting on the crankshaft through the roller finishing roller;wherein the roller finishing roller is guided on all sides in a roller cage;wherein the finishing roller head has a finishing roller head frame in which the finishing roller head housing is mounted such that it is pivotable around a first pivot axis which is perpendicular to the crankshaft axis and parallel to a tangent on a working side of the roller finishing roller, or the support roller head has a support roller frame in which the support roller housing is mounted such that it is ...

HARD-ROLLING ROLLER HEAD FOR THE DEEP ROLLING OF THE CRANKPINS OF A SPLIT-PIN CRANKSHAFT

The invention discloses a hard-rolling roller head with two separate housings for deep rolling the outside radii of adjoining crankpins of a split-pin crankshaft. The hard-rolling roller head provides an effective support of the two housings against one another, when machining split-pin crankshafts, and simultaneously prevents the upper areas of these housings from drifting apart.

Forming of inner grooves in thin tubes - involves mandrel and pressing rollers to control flow forming

Blanks of high-strength steels, such as maraging steel, are used and one end of the blank has a threaded section inserted into a ring. The mandrel which is contoured in correspondence with the grooves in the tube is pushed into the bore of the blank which is coaxial with its outside surface. A steadying ring fits round the outside surface while press rollers engage the chamfered end of the blank. The mandrel is held in the machine arbour and helical grooves may be formed and the wall thickness of the blank may be subject to a reduction of over 50%. The process eliminates costly machining and also improves the fibre structure.

End finisher machine

An end finisher machine is disclosed. A longitudinal base mounts a stabilizer block which in turn mounts a high speed shaft or spindle, the spindle extends through a head having a camming surface and mounts a tooling assembly at its distal end. A motor drives the spindle at high speeds. A workpiece is placed in a tool holder mounted on the base adjacent the head. A first drive cylinder moves the stabilizer block and the tooling assembly to a correct axial position adjacent the workpiece. A second drive cylinder moves the head to cam the tooling assembly to drive the tools to perform the desired tooling operation.

Gauge for transverse rolling of hollow work on mandrel

Method of cold shaping of toothed profiles by planetary rolling

Arrangement for lengthwise rolling of parts

Arrangement for rolling annular grooves on thin-walled pipes

Rotor for knurling annular grooves on tube blank

Method of rolling-on axially-symmetrical profiles

Roller head for rolling grooves into shafts

Device for rolling grooves in shafts

Set of rolis for rolling annular grooves

Изобретение относитс  к обработке металлов давлением и может быть использовано дл  изготовлени  труб с кольцевыми канавками. Цель изобретени  - расширение технологических возможностей процесса накатывани  кольцевых канавок на трехвалковом стане. Комплект валков дл  накатывани  кольцевых канавок содержит три одинаковых приводных валка с винтовыми выступами. Валки установлены на равном рассто нии от оси прокатки и развернуты к оси прокатки на угол, равный углу подъема винтовой линии выступов. Шаг винтовых выступов (рассто ние между соседними выступами при трехвалковой прокатке) втрое больше шага кольцевых канавок издели  с учетом разворота валков в соответствии с расчетной зависимостью. Винтовые выступы одного валка смещены по оси прокатки относительно соседнего валка на величину, равную шагу кольцевых канавок издели . Высота винтового выступа на валке определ етс  по зависимости: H в-D н-2A√3/4+(MT/ϕD н) 2 +Δ, где H в - высота винтового выступа валка The invention relates to the processing of metals by pressure and can be used for the manufacture of pipes with annular grooves. The purpose of the invention is to expand the technological capabilities of the process of rolling ring grooves on a three-roll mill. A set of rolls for rolling annular grooves contains three identical drive rollers with helical protrusions. The rolls are installed at an equal distance from the rolling axis and are turned to the rolling axis at an angle equal to the elevation angle of the helix of the protrusions. The pitch of the screw protrusions (the distance between adjacent protrusions during three-roll rolling) is three times the pitch of the ring grooves of the product, taking into account the rotation of the rolls in accordance with the calculated dependence. The screw protrusions of one roll are offset along the axis of rolling relative to the adjacent roll by an amount equal to the pitch of the ring grooves of the product. The height of the screw protrusion on the roll is determined ...

Device and method of machining without formation of chips for profiling blank outer surface

FIELD: process engineering. SUBSTANCE: invention relates to thread cutting with removal of chips. Proposed device comprises profiling tool arranged opposite locking element. Both said device and element may be fed for biting relative to each other and set in fixed position to allow tangential setting between and tangential removing of blank from between said device and said element. Profiling element comprises no-pitch profile and may be positioned opposite the blank lengthwise axis at adjustable angle of inclination of profiling tool depending upon required angular pitch of external thread. EFFECT: cutting of blank inaccessible from its both ends. 13 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 467 821 (13) C2 (51) МПК B21H 3/02 (2006.01) B21H 7/18 (2006.01) B23G 7/02 (2006.01) B24B 39/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010146666/02, 03.03.2009 (24) Дата начала отсчета срока действия патента: 03.03.2009 (73) Патентообладатель(и): ГОТФРИД ВИЛЬГЕЛЬМ ЛЕЙБНИЦ УНИВЕРЗИТЕТ ГАННОВЕР (DE) (43) Дата публикации заявки: 27.05.2012 Бюл. № 15 2 4 6 7 8 2 1 (45) Опубликовано: 27.11.2012 Бюл. № 33 (56) Список документов, цитированных в отчете о поиске: US 1983922 A1, 11.12.1934. GB 831644 A, 30.03.1960. US 3793659 A, 26.02.1974. US 4150450 A, 24.04.1979. RU 2087237 C1, 20.08.1997. 2 4 6 7 8 2 1 R U (86) Заявка PCT: DE 2009/000285 (03.03.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 17.11.2010 (87) Публикация заявки РСТ: WO 2009/127178 (22.10.2009) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) УСТРОЙСТВО И СПОСОБ ОБРАБОТКИ БЕЗ СНЯТИЯ СТРУЖКИ ДЛЯ ОБРАЗОВАНИЯ НАРУЖНОГО ПРОФИЛЯ НА ЗАГОТОВКЕ (57) Реферат: Изобретение относится к устройствам и способам образования наружной резьбы на заготовке без снятия стружки. Устройство содержит профилирующий инструмент, расположенный напротив фиксирующего элемента. Профилирующий инструмент и фиксирующий ...

Rolling die of ballscrew

一种用于滚珠丝杠的滚轧模具，具有：圆柱部分，包括有形成于其外周表面上的螺旋凸起部，用于在滚珠丝杠的螺杆坯料上成形螺旋滚珠沟槽；和形成于所述圆柱部分一个端部上的圆锥形导入部分，该导入部分包括有多个截头圆锥形部分，其中，所述截头圆锥形部分相对于螺杆坯料的接触角均被设定为能够从与所述圆柱部分相邻的截头圆锥形部分处开始依次顺序增大。

Linear motion ball bearing assembly and ball conforming shaft

A linear motion ball bearing assembly and shaft having ball conforming portions are combined to support heavier-than-normal loads and provide torque resistance. The bearing shaft is provided with one or more ball conforming grooves. The bearing assembly is provided with one or more load-bearing surfaces, each of which also includes a ball conforming groove, which may move circumferentially a very slight amount for tolerance variations in the angular spacing and parallelism of the shaft grooves, thereby assuring perfect ball conformity and line contact on the load-bearing surface of both the shaft and bearing assembly. Alternative configurations and methods of forming the ball conforming grooves on the shaft are also disclosed.

DEVICE AND METHOD OF PROCESSING WITHOUT REMOVING CHIP FOR THE FORMATION OF EXTERNAL PROFILE AT THE BILL

1. Устройство (1), содержащее, по меньшей мере, один профилирующий инструмент (3) для образования наружного профиля на заготовке (2) обработкой без снятия стружки, выполненное в виде передвижного с возможностью одновременного прохода ручного аппарата, при этом профилирующий инструмент (3) расположен в плоскости силового потока напротив фиксирующего элемента (4), причем профилирующий инструмент (3) и фиксирующий элемент (4) выполнены с возможностью подачи на врезание относительно друг друга и с возможностью установки неподвижного положения, в котором заготовка (2) может вводиться между профилирующим инструментом (3) и фиксирующим элементом (4), отличающееся тем, что заготовка (2) может вводиться и извлекаться между профилирующим инструментом (3) и фиксирующим элементом (4) по касательной и профилирующий инструмент (3) содержит профиль без шага и в зависимости от требуемого углового шага образуемого наружного профиля может позиционироваться в плоскости силового потока напротив продольной оси заготовки (2) при регулируемом угле наклона. ! 2. Устройство (1) по п.1, отличающееся тем, что фиксирующий элемент (4) образует на своей обращенной к профилирующему инструменту (3) стороне угол от 35 до 140°. ! 3. Устройство (1) по п.1, отличающееся тем, что фиксирующий элемент (4) содержит, по меньшей мере, один прижимной ролик и лежит вместе с профилирующим инструментом в плоскости силового потока. ! 4. Устройство (1) по п.1, отличающееся тем, что фиксирующий элемент (4) выполнен в виде, по меньшей мере, одного дополнительного профилирующего инструмента. ! 5. Устройство (1) по одному из предыдущих пунктов, отличающееся тем, что фиксирующий элемент (4) выпол РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 146 666 (13) A (51) МПК B21H 3/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2010146666/02, 03.03.2009 (71) Заявитель(и): ГОТФРИД ВИЛЬГЕЛЬМ ЛЕЙБНИЦ УНИВЕРЗИТЕТ ГАННОВЕР (DE) Приоритет(ы): (30) Конвенционный приоритет: 17.04. ...

Method for rolling products having inner helical ribs

Groove forming machine for rolling grooves in cylinder - has pair of rollers carried on parallel pins on tongue entering bore

The forming tool has a cylindrical carrier (1) which can be actuated by a press. The carrier is fixed to the pressure plate (2) by the screw (3). The end of the carrier has a tongue (8) with parallel sides. One profiled roller (5) and one support roller (6) are carried in a slot in the tongue (4). The profile of the first roller corresponds to the groove (10) which is to be formed in the cylinder (11). The support roller is in rolling contact with the concave section of the profiled roller and its outer surface conforms to the cylindrical surface of the workpiece.

Composite tool for cold rolling of splines - has composite spline rolling wheels which are supported in radial housings

The multiple roller tool head is used for longitudinal cold rolling of splines into shafts, especially for shafts which have more than ten splines. The arrangement ensures stability of the deforming rollers in relation to the profile to be rolled relative to the profile centre line. Each roller (5) is built up of at least two discs whose profiled circumferential sections are such that the gap formed corresponds to the spline profile. A special radial groove is arranged in the support body which accommodates parts of the profiling roller for ensuring good radial stability. The shaft (4) of each composite roller has at its ends rectangular sections inserted into a rectangular seat in a slider (3). This ensures sufficient clearance for ensuring support for the roller.

IMPROVEMENT FOR PROCESS FOR PRODUCING THREADED STUDS OR DRAWERS

Procédé de réalisation d'une tige (1) comprenant au moins un filetage (5), caractérisé en ce qu'il consiste à réaliser le filetage (5) et une gorge annulaire de blocage (2) par déformation. Method for producing a rod (1) comprising at least one thread (5), characterized in that it consists in producing the thread (5) and an annular locking groove (2) by deformation.

Patent FR2274826B1

TOOL FOR LAYING

Machine for making splines

Y-FINTED TUBE FOR HEAT EXCHANGER

TUBE A AILETTES EN FORME DE Y. L'APPAREIL DE FABRICATION DE CE TUBE 1 COMPORTE UN OUTIL DE ROULAGE 7 COMPRENANT UN CERTAIN NOMBRE DE DISQUES DE ROULAGE 8 POUR FORMER DES AILETTES NORMALES 2, UN ROULEAU DE LISSAGE CYLINDRIQUE 11 POUR FORMER DES AILETTES LISSEES 2, ET UN ROULEAU D'ENTAILLAGE 13 POUR FORMER DES AILETTES EN FORME DE Y 2, CET OUTIL ET CES ROULEAUX ETANT LOGES DANS UN PORTE-OUTIL COMMUN 9, LA PAROI LATERALE 4 DU TUBE LISSE DE DEPART 1 ETANT PORTEE PAR UN MANDRIN 10. APPLICATION AUX ECHANGEURS DE CHALEUR. TUBE WITH Y-SHAPED FINNINGS. THE APPARATUS FOR MANUFACTURING THIS TUBE 1 INCLUDES A ROLLING TOOL 7 INCLUDING A NUMBER OF ROLLING DISCS 8 TO FORM NORMAL FINS 2, A CYLINDRICAL SMOOTHING ROLLER 11 FOR FORMING SMOOTH FINS 2, AND A NOTCHING ROLLER 13 TO FORM Y-SHAPED FINS 2, THIS TOOL AND THESE ROLLERS BEING HOUSED IN A COMMON TOOL HOLDER 9, THE SIDE WALL 4 OF THE SMOOTH STARTING TUBE 1 BEING CARRIED BY A CHUCK 10 APPLICATION TO HEAT EXCHANGERS.

Cold rolling of tooth contours from solid blanks - workpiece is plunge-cut to profile depth

The procedure is for the cutting of parallel profiles from solid blanks, by displacing material from the profile base to the workpiece surface via regular stroke-like rolling steps of profiled rollers, held in driven rolling heads. At the beginning of the rolling process, the solid workpiece is plunge cut to profile depth, by synchronous feeding of two opposite rolling heads. The workpiece is displaced in a straight line during plunge cutting. In the case of workpieces with collar and profiles extending to the collar, the piece is plunge cut to close to the collar, and is drawn, after the profile depth has been reached.

Crankshaft strain hardening machine for internal combustion engine, has strain hardening unit, interposed between cylindrical hub and support crown, with roller units belonging to roller that includes outer ring received inside crown

The machine has an upper action tool (14) with an upper case (18) delimiting an inner housing (20) in which is mounted a strain hardening unit (31) interposed radially between a cylindrical hub (38) and a support crown (42). The unit (31) has roller units (40) belonging to a roller (41) with an outer ring (46) received inside the crown. The roller has an inner ring (44) that traverses the hub (38).

High precision cold rolling shaft spliner

Valve guide grooving tool

A tool for grooving an outer surface of a valve guide comprising a tool body, a tightening nut disposed about a portion of the tool body, one or more rollers rotatably mounted within a bushing, and a handle for rotating the one or more rollers of the tool about the outer surface of the valve guide, wherein the tool is capable of grooving the outer surface of the valve guide while the cylinder head is mounted to an engine. The grooves on the outer surface of the valve guide allow the valve stem seal to grip the valve guide more effectively, thereby improving the retention force on the valve guide. As a result, the movement of the valve stem seal is minimized. A method of using the tool is also described.

Upper action tool for burnishing toroidal fillet, has roller supported on annular radial lateral face of groove to compensate reaction force of axial component of burnishing force applied by pulley on toroidal fillet

The tool (18) has a wheel (52) in a parallelepiped shaped housing (30) and in support on a pulley (40) having a burnishing strength on a cylindrical shaped annular groove (14) presenting a radial component and a component along an axis (B-B) of the wheel. A truncated conical shaped roller (58) forms an abutment element and is supported on an annular radial lateral face (17b) of the groove to compensate the reaction force of the axial component of the burnishing force applied by the pulley on a toroidal fillet (16a).

T-FINTED TUBE FOR HEAT EXCHANGER

Tube à ailettes en forme de T. L'appareil qui permet de fabriquer un tel tube comprend un outil de roulage comportant un certain nombre de disques de roulage 8 pour former des ailettes normales à partir d'un tube lisse 1', des rouleaux d'entaillage 13 pour former des ailettes entaillées 2', un rouleau de cintrage 14 pour donner aux ailettes la forme d'un Y 2", et un rouleau d'aplatissement 11 pour donner aux ailettes la forme finale d'un T 2. Application aux échangeurs de chaleur. T-shaped finned tube. The apparatus for making such a tube comprises a rolling tool having a number of rolling discs 8 for forming normal fins from a smooth tube 1 ', rollers of 'notch 13 to form notched fins 2', a bending roller 14 to give the fins the shape of a Y 2 ", and a flattening roller 11 to give the fins the final shape of a T 2. Application to heat exchangers.

Patent FR2482484B1

Machining method of control valve shaft for power steering gear

본 발명은 자동차 파워 스티어링 기어용 제어밸브 샤프트의 가공방법에 관한 것으로, 가공비가 저렴하고 가공작업도 용이하게 이루어지며, 가공작업시에 제어밸브 샤프트의 유동을 일으키지 않음으로써 소음으로 인한 작업자의 불편을 해소할 수 있도록 함에 목적이 있다. 위와 같은 목적을 달성하기 위한 본 발명은, 외주부(1)에 축방향으로 유로가 지나가는 홈(1a)이 형성되는 자동차 파워 스티어링 기어용 제어밸브에 있어서,상기 홈(1a)을 전조 작업에 의해 가공하는 것을 특징으로 한다.

Patent JPS5637007B2

LINEAR MOVEMENT BALL BEARING ASSEMBLY AND SHAFT ADAPTED TO BALLS

Method and apparatus for producing a rotationally symmetric workpiece with internal teeth

A ball tool (18) with a number of balls (22) is placed against the workpiece (10) and is used to press it into the external teeth (16) of a mandrel (14).

Method of manufacturing internally geared parts

The invention concerns a flow-turning process for manufacturing internally geared parts, with a press mandrel (10) comprising a mandrel (1) on which is fitted a forming tool (2) and one or more pressure rollers (3). A workpiece (4) is held between the forming tool (2) or press mandrel (10) and press rollers (3) and undergoes plastic deformation under the force exerted by the press rollers (3). As an improvement, in particular with regard to mass production, it is proposed that the forming tool should consist of chromium- and molybdenum-containing materials and should be tempered and surface-hardened, and that the distance between the forming tool (2) and the mounting of the press mandrel (10) in the machine should be sufficient to permit a degree of deviation (α) by the forming tool (2) relative to the machine axis (5).

Manufacture of caliber roll by high temperature working

Mechanism for clamping a blank in a machine for rolling splines

A clamping device for holding a blank in a machine for making splines by a multiroller rolling head comprises a stationary supporting center and a clamping center which is moved by a drive means along guides located in the head housing and may be angularly self-adjusted during the rolling process.

Method of manufacturing gas springs

The method includes making a fluid communication channel (44), which has a selectively variable cross-sectional area profile, in the inner face of a gas spring cylinder (32) so as to permit fluid communication at different selective rates bypassing around or across the piston assembly (68) of the gas spring (52) as the piston assembly (68) moves within the cylinder (32). Preferably the cross-sectional area profile of the fluid communication channel (44) is initially substantially the same throughout the length of the channel (44) and is thereafter selectively changed in certain portions of the channel (44) so as to restrict and in some instances block gas or fluid flow through the fluid communication channel (44).

Manufacturing tool for fluid dynamic bearing

A manufacturing tool ( 20 ) for forming a dynamic pressure groove ( 52 ) in an inner peripheral surface of a bearing sleeve ( 50 ) includes a tool shaft ( 21 ) for being rotated in a bore of the bearing sleeve while being moved in an axial direction thereof. Protrusions ( 25 ) are integrally and circumferentially arranged on an outer periphery of the tool shaft near a leading end ( 22 ) thereof. Machining tips ( 26 ) are integrally formed on outmost ends of the protrusions for machining the inner peripheral surface of the bearing sleeve to form the dynamic pressure groove therein.

Improved method of making stud bolts or rods provided with threads

Cold-worked piston for hydraulically operating brake

For the elimination of distortion of a thin walled cold formed brake piston the piston (1) perimeter wall (5) is stiffened by one or more formed grooves (3) and one or more inwardly projecting ridges each formed by a corresponding groove. The shaping of the groove is carried out so that the wall thickness within the critical range (2) is at least equal to the wall thickness of the piston wall (4). The grooves may be used for securing a sealing cup, a rubber seal and/or a retaining spring for the brake pads.

Tolerance rivet for highly stressed riveted joints

A b s t r a c t : A tolerance rivet for highly stressed riveted joints possessing a shank (3) whose length is harmonized with the two components to be joined, followed by a retaining piece (5) interacting with a retaining collar and provided with grooves (9) on its circumference. An enveloping jacket (12) which links the root diameters d1, d2 of the grooves, widenes conically from the head of the tolerance rivet toward its opposite free end. The grooves (9) on the retaining piece (5) have decreasing groove width a1, a2, etc., and increasing asymmetry of the groove profile. The first groove (9) located at the retaining piece (5) of the tolerance rivet that is located after the shank (3) in the direction toward its free end, possesses rounded shaping r3 in the area of its root diameter d1 whose area (13) is strain-hardened.

Method of producing a metal hollow body, hollow bodies produced according to this method and device for carrying out this method

In the present method of producing a metal hollow body (1) having a cylindrical casing which is provided on the exterior with at least one predetermined breaking line (32, 51), the casing is formed by a drawing process and the predetermined breaking line (32, 51) is produced continuously by working without cutting, in particular by rolling in, on the outer surface of the casing, after or during the drawing process.

Manufacturing method of cylindrical material

【要約】 【課題】多くの加工時間とコストを要することなく、圧 造と絞り加工によって優れた寸法精度の円柱材を得る方 法を提供する。 【解決手段】金属製の円柱素材１の外周に、圧造によっ て多数本の縦溝２を均等に形成する。次にこれをダイス により絞り加工し、各縦溝２、２間の先端部分３を平ら に押しつぶし、目的とする外形寸法とする。絞り加工の 際に余肉が縦溝２の内部に入り込むため、優れた寸法精 度の円柱材を得ることができる。 The present invention provides a method for obtaining a cylindrical material having excellent dimensional accuracy by forging and drawing without requiring much processing time and cost. A plurality of vertical grooves (2) are uniformly formed on the outer periphery of a metal cylindrical material (1) by forging. Next, this is drawn with a die, and the end portion 3 between the vertical grooves 2, 2 is crushed flat to obtain the desired external dimensions. Since the extra thickness enters the inside of the vertical groove 2 at the time of drawing, a cylindrical material having excellent dimensional accuracy can be obtained.

IMPROVEMENT IN SUPPORT COMPLEXES WITH CIRCULATION OF BALLS

Cold-formed piston for hydraulically operated brake.

Des pistons formés à froid pour freins à commande hydraulique sont susceptibles de se déformer, leur paroi du côté du cylindre pouvant se gauchir vers l'extérieur ou vers l'intérieur lorsque des forces suffisamment élevées s'exercent sur le fond du piston. Afin d'éliminer cet inconvénient, un piston (1) a une paroi latérale (5) raidie par une rainure (3) moulée. La zone qui porte la rainure est déformée de sorte que l'épaisseur (a) de la paroi dans la zone critique (2) ne soit au moins pas inférieure à l'épaisseur du reste de la paroi (4) du piston. Il est en outre proposé d'utiliser la rainure de raidissement pour recevoir ou assujettir une manchette d'étanchéité, un joint d'étanchéité en caoutchouc et/ou un ressort de retenue du sabot du frein. Cold formed pistons for hydraulically operated brakes are liable to deform, their wall on the cylinder side being able to warp outwards or inwards when sufficiently high forces are exerted on the bottom of the piston. In order to eliminate this drawback, a piston (1) has a side wall (5) stiffened by a molded groove (3). The area which carries the groove is deformed so that the thickness (a) of the wall in the critical area (2) is at least not less than the thickness of the rest of the wall (4) of the piston. It is further proposed to use the stiffening groove to receive or secure a sealing sleeve, a rubber seal and / or a brake shoe retaining spring.

Method and device for producing high-strength pipes

Patent JPS6114900B2

Device for setting deep rolling rolls

Method for producing an electrically conductive profiled strip, and an electrically conductive profiled strip

The invention relates to a method for producing an electrically conductive profiled strip (2), as the raw material for manufacturing commutators, and to the design of such a profiled strip (2). First of all grooves (3) are machined in a pre-rolled strip (1) by rolling at least once. The cross-section of the grooves (3) is designed to be approximately rectangular, taking into account the rolling inclines. Webs (4) are formed between the grooves (3). During the rolling process, the grooves (3) reach such a depth (T) that the height (H) of the webs (4) is dimensioned to be greater than the desired final height (HE) of the fixing webs (7). The final height (HE) of the fixing webs (7) is subsequently produced by overrolling. At the same time, the cross-section of the webs (4) is deformed such that the width (BF) of the fixing webs (7) in the base region (FB) is dimensioned to be less than the width (BK) in the head region (KB). Fixing webs (7) are in this way produced which have grooves (3) in between them which have an approximately trapezoidal cross-section. <IMAGE>

Rolling device

Linear motion ball bearing assembly and ball conforming shaft

A linear motion ball bearing assembly and shaft having ball conforming portions are combined to support heavier-than-normal loads and provide torque resistance. The bearing shaft is provided with one or more ball conforming grooves. The bearing assembly is provided with one or more load-bearing surfaces, each of which also includes a ball conforming groove, which may move circumferentially a very slight amount for tolerance variations in the angular spacing and parallelism of the shaft grooves, thereby assuring perfect ball conformity and line contact on the load-bearing surface of both the shaft and bearing assembly. Alternative configurations and methods of forming the ball conforming grooves on the shaft are also disclosed.

Internal tooth member and molding method thereof

Slider of piston or the like

Patent CH670782A5

Tubular product and manufacturing method and manufacturing device thereof

一种管状产品，包括具有按平行四边形布置的外表面的一侧部和形成于该侧部一端的底部。该侧部的外表面通过辊子施加压力制成。管状产品优选由管状材料制造，通过包括使用一种设备的工序，该设备具有啮合管状材料侧部的辊子。该设备还包括一个配置为定位该管状材料的心轴，这样辊子就可以朝该侧部的外表面上的至少一部分施加压力并且延伸该管状材料的侧部以形成该产品。

Thin walled hollow tubular components with improved strength

Tool bits and method of shaping

ABSTRACT Grooves are formed in an insertion end of a working tool, such as a tool bit, chisel bit, and the like, by pivoting a grooving tool about a pivot axis extending perpendicularly to the axis of the insertion end. By pivoting the grooving tool about the pivot axis, it moves along the axial direction of the insertion end forming the grooves. A plurality of the grooving tools can be ganged together and moved by a single drive unit for simultaneously forming angularly spaced grooves in the insertion end.

FIN PIPE FOR HEAT EXCHANGERS AS WELL AS PROCEDURE AND APPA CROCHET TO PRODUCE IT

Machines for Forming Grooves and the like upon the Sides of Rollers.

1205. Forrester, H. J. C., [Hess-Bright Manufacturing Co.]. Jan. 17. Rollers, treating.-A machine for forming grooves &c. upon the sides of rollers for journal bearings, such grooves being intended to form 'abutting surfaces to take an end thrust on the rollers, comprises means for mounting a series of rollers in the angular relation they occupy in the bearing, and for applying a rotating abrading - disk or milling - tool to their sides while they are rotated. The rollers A are mounted in circular series between a ring C and an internal rotatable disk B. The grinding-disk D is mounted upon a shaft D<1> driven through gearing from a shaft D<5> which also drives the disk B for rotating the rollers. The disk B may be stationary and the ring C rotate, or both may rotate, and the grinding or milling disk may be mounted externally to the ring of rollers.

System and method for forming metal lid for threaded container

FIELD: package. SUBSTANCE: invention relates to devices and a method for forming thread on a wall of a metal lid of a metal bottle. A press for forming a groove along the perimeter of a closed end wall of the metal lid contains an external tool and an internal tool, while the external tool and the internal tool are made with the possibility of applying force to the metal lid to form the groove along the perimeter of the closed end wall of the metal lid, when the metal lid is installed between them. The device for forming thread on a cylindrical case contains a threaded roller and a threaded mandrel, while at least one recess with a geometric shape is made in a mandrel case, which ensures the formation of thread on the cylindrical case of the metal lid, when a lateral force is applied by the specified threaded roller to the outer surface of the cylindrical case. The method for forming the metal lid includes leveling the metal lid by means of internal and external tools of the specified press and applying a side load to the outer surface of the cylindrical case of the metal lid using the threaded roller of the specified device for forming thread. EFFECT: obtaining a metal lid for sealing a metal bottle made using smaller amount of material (for example, with a thinner wall) compared to a known metal bottle. 22 cl, 18 dwg

Method and device for producing press-rolled pipes with inner wall thickenings at the ends

A method for producing press-rolled tubes (3) with a press mandrel (1) and one or more pressure rollers (2), with the tube (3) being arranged between the press mandrel (1) and the pressure rollers (2) and being plastically deformed by means of force loading of the pressure rollers (2). To produce tubes with end wall thickenings, in a first working operation, a first press mandrel (1a) with a tailstock-end shoulder (4) is used. The pressure rollers (2) begin their transforming work at the tailstock-end shoulder (4) and work in the direction of the machine spindle. The half-finished tube (3a) is taken from the first press mandrel (1a), and, in a second working operation, the half-finished tube (3a) is clamped at the end with the wall thickening (5) which has already produced into a lathe chuck (6) (tensioning spindle or similar) mounted in the press-rolling machine, and a second press mandrel (1b), fastened on the tailstock end and having an outer diameter (d 2 ) which corresponds to the inner diameter of the wall thickening, is pushed into the half-finished tube (3a). Then the pressure rollers (2) form the second wall thickening from the tailstock-end in the direction of the machine-spindle end.

Device and non-cutting shaping method for introducing an outside profile into a workpiece

Method and apparatus for the production of profiled articles

Manufacturing apparatus for aluminum cylinder with many small internal splines

Rolling die for ball screw

A rolling die for a ball screw has: a cylindrical portion including a helical protrusion formed in an outer peripheral surface thereof for forming a helical ball groove in a raw material of a screw shaft of the ball screw; and a conical lead-in portion formed in one end portion of the cylindrical portion, the lead-in portion including a plurality of frustum-cone-shaped portions, wherein the contact angles of the frustum-cone-shaped portions with respect to the raw material of the screw shaft are each set so as to increase sequentially in the order starting at and from the frustum-cone-shaped portion adjoining the cylindrical portion.

Roller for roll forming

A roller for engaging an outer surface of a pipe element during roll forming has a perimeter region defined by three faces. A channel is positioned in one of the faces. The channel extends circumferentially around the perimeter region and provides a void space that reduces the contact area between the face and the side surface of a circumferential groove formed in the pipe element during roll forming. The reduced contact area reduces frictional heating of the pipe and roller as well as the tendency of the roller to slip relative to the floor surface of the groove due to axial force engendered when an asymmetrical groove is formed.

METHOD AND DEVICE FOR DEFORMING A WORK PIECE.

Procedimiento para moldear una pieza de trabajo (7) mediante al menos un rodillo (1, 2, 15, 16), dentro o encima de cuya envoltura (4) está moldeado al menos un elemento moldeador (6, 14), caracterizado en que, El rodillo (1, 2 15, 16) con el elemento moldeador (6, 14) será dirigido hacia la pieza de trabajo (7), fijado, y conducido entonces hacia la pieza de trabajo (7) con el fin de moldearla. Procedure for molding a workpiece (7) by at least one roller (1, 2, 15, 16), inside or on top of whose casing (4) at least one molding element (6, 14) is molded, characterized in that , The roller (1, 2 15, 16) with the molding element (6, 14) will be directed towards the workpiece (7), fixed, and then led to the workpiece (7) in order to mold it.

Apparatus for cold rolling of helical grooves in pipe

Method and apparatus for producing tapered parts

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Improvements in the method of manufacturing pirns for use in connection with the textile industry

662,606. Making pirns. SMITH, S. July 24, 1950 [Sept. 16, 1949], No. 23874/49. Classes 83 (ii) and 83 (iv). Corrugating. - The end of a metal pirn is formed with grooves for receiving spring loops by means of a rotary tool comprising an inverted hollow member a within which is keyed another inverted hollow member b having its walls slotted to receive balls e. In operation, the end of the pirn is thrust into the member b until it contacts a bearing-head d and the tool is rotated through the shank a<SP>1</SP>. On downward movement of the member a against a spring c, a taper a<SP>5</SP> forces the balls inwardly to form annular grooves around the pirn.

Method of manufacturing a hollow workpiece having at least an inner surface having a molded portion extending straight in the axial direction of the workpiece or a molded portion extending obliquely to the axis of the workpiece.

Patent RU2020112455A3

Tool device for deep rolling machines

Apparatus and process for manufacturing profiled bodies

For shaping longitudinal grooves or comparable longitudinal structures into round housings or housings which are otherwise regularly shaped with respect to a longitudinal axis, a press is provided with a deforming tool whose top tool presses a workpiece through a corresponding roll arrangement of a bottom tool. The bottom tool has an opening which is coaxial to the top tool contains an axially displaceable cage provided with a group of rolls. The rolls are rotatably disposed in the cage and are supported on radially exterior abutments which are stationarily held in the bottom tool. The rolls are constructed as profile rolls and shape the desired longitudinal structures into the workpiece when it is moved through between the profile rolls. The resulting radial reaction forces are absorbed exclusively by the abutments and not by the cage. For supporting the longitudinal movement of the cage, a transmission is formed, for example, by gear wheels which are rotatably disposed on the cage. The gear wheels are supported radially on the outside on stationary toothed racks and radially on the inside on a workpiece-operated slide provided with toothed racks.

Apparatus and method for producing hollow workpieces profiled at least inside, straight or oblique to the workpiece axis

Device for producing a hollow workpiece, profiled, at least internally, in a straight or oblique direction with respect to the workpiece-axis, and its use

A Grob cold-rolling machine, which is known per se, can be taken as a basis, the said machine, as is known, having rolling-head carriers (26) which can be adjusted towards and away from the workpiece (1, 11, 111) and contain rolling heads (27) which can be driven in rotation. Mounted in the rolling heads (27) are impact rollers (28) which, as the rolling heads (27) revolve, revolve on a circular path (280) and can perform individual rolling operations on a workpiece situated on a mandrel (3). In addition, an undriven pressure roller (29) with the ability to rotate freely is mounted on each of the rolling-head carriers (26) outside the circular path (280) of the impact rollers (28), being mounted on a roller axis (290) parallel to or obliquely inclined with respect to the mandrel axis (31). The pressure rollers (29) can be used to perform a predominantly axial deformation, after which a predominantly radial deformation can be carried out by means of the impact rollers (28), the entire operation taking place in the same set-up and on the same mandrel (3). Economically advantageous manufacture of the workpieces can thereby be achieved (without loss of quality). In fact, an improvement in quality is possible. <IMAGE>

Device for producing a hollow workpiece, profiled, at least internally, in a straight or oblique direction with respect to the workpiece-axis, and its use

Support tool for deep rolling crankshaft fillets

Deep rolling equipment for cold working fillet radii of annular undercuts on opposite sides of main bearing and crank pin journals of an engine crankshaft while being rotatably driven. The equipment has pairs of jaws movable between an open position for receiving the crankshaft journal and a closed position for rolling the fillets thereof. The upper jaw mounts fillet rolling tools for high load rolling engagement in the annular undercuts and a lower tool on the opposing lower jaw for support of the journal. The lower tool has a pair of support rollers with annular journal support portions which contact and support the journal while the fillet radii of the undercuts on either side of the journal are being rolled. These support rollers importantly have work stabilizing annular flanges outboard of the support portion with larger diameters that ride in the undercuts and limit lateral movement of the crankshaft with respect to the rolling and support tools so that the crankshaft is not abraded or otherwise damaged by side contact of the jaws and tools with portions of the crankshaft.

METHOD AND DEVICE FOR PRODUCING PRESSURE-ROLLED TUBES WITH INTERNAL THICKENINGS AT THE ENDS

Method for forming sheet metal holder, and formed sheet metal holder based thereon

(57)【要約】 【課題】 円錐ころ用の、軸方向に延びるリブを有する 板金保持器を、切削加工なしに正確且つ迅速安価に成形 する。 【解決手段】 所定寸法の円盤形板金１２の中心孔を工 具４の心出しジャーナル１３に嵌め、マンドレル１と逆 圧シャフト２とで固定する。工具４、逆圧シャフト２、 板金１２及び加圧ロール３を回転させ、加圧ロール３を 矢印１４の方向に移動させる。板金１２は円錐形に転造 され、素材の一部は工具４に設けた輪郭溝６に流れ込ん でウェブ部分９となり、他は薄く延ばされ、全体として 円錐形になる。次にウェブ１１，１１間を打抜いてポケ ットを作る。

TOOL FOR LAYING A TORIC LEAVE.

Y-FINTED TUBE FOR HEAT EXCHANGER

Tube à ailettes en forme de Y. L'appareil qui permet de fabriquer un tel tube à partir d'un tube lisse 1', comprend un outil de roulage 7 comportant un certain nombre de disques de roulage 8 pour former des ailettes normales, des rouleaux d'entaillage 13 pour former des ailettes entaillées 2' et des rouleaux de cintrage 14 pour former les ailettes en forme de Y 2. Application aux échangeurs de chaleur et aux évaporateurs à faisceau de tubes. Y-shaped finned tube. The apparatus which makes it possible to make such a tube from a smooth tube 1 'comprises a rolling tool 7 having a number of rolling discs 8 to form normal fins, notching rollers 13 to form notched fins 2 'and bending rollers 14 to form Y-shaped fins 2. Application to heat exchangers and tube bundle evaporators.

Method and apparatus for producing at least partially shaped tubes

Method of cleaning fixed milling cutter incorporates fixed milling head, two housings, side drainage holes, ducts and support rollers

The fixed milling machine is placed on, and removed from crank shafts,(1) and has a fixed milling head (2) and a support roller head. (3), Each consists of several components and has side lubricant-drainage holes. Cleaning the tool involves pouring lubricant from outside inside at least one fixed milling head. A first housing (8) has a of the fixed milling head has a duct (9) for the lubricant (11). A second housing (20) has a lubricant-inflow duct (16) onto the two support rollers (17).

Roller for roll forming

A roller for engaging an outer surface of a pipe element during roll forming has a perimeter region defined by three faces. A channel is positioned in one of the faces. The channel extends circumferentially around the perimeter region and provides a void space that reduces the contact area between the face and the side surface of a circumferential groove formed in the pipe element during roll forming. The reduced contact area reduces frictional heating of the pipe and roller as well as the tendency of the roller to slip relative to the floor surface of the groove due to axial force engendered when an asymmetrical groove is formed.

METHOD AND DEVICE FOR MANUFACTURING A GUIDE RAIL FOR LINEAR BEARINGS

PROCEDE DE FABRICATION D'UN RAIL DE GUIDAGE POUR DES ROULEMENTS LINEAIRES, DANS LEQUEL EST PREVU SUR LES COTES LATERAUX MUTUELLEMENT OPPOSES DUDIT RAIL RESPECTIVEMENT AU MOINS UNE GORGE OU ANALOGUE, TREMPEE, FORMANT UN CHEMIN POUR DES CORPS DE ROULEMENT. ON REALISE LES GORGES DE ROULEMENT 2 OPPOSEES AVEC UN ECARTEMENT MUTUEL QUI DIFFERE D'UNE VALEUR DETERMINEE X DE LEUR ECARTEMENT FINAL A, ON REDUIT LA SECTION TRANSVERSALE MEDIANE 4 DU RAIL (RAINURES 3), ON TREMPE LE RAIL, SAUF A L'ENDROIT DE LA SECTION REDUITE 4 ET ON COMPRIME LE RAIL, DES ROULEAUX PRESSEURS 5 ETANT DISPOSES DANS LES GORGES 2, JUSQU'A ATTEINDRE L'ECARTEMENT FINAL A DES GORGES.

PROCEDURE FOR FIXING A PISTON ON THE PISTON ROD OF A WORKING CYLINDER.

Spinning roller for splitting a rotationally symmetrical workpiece

A spinning roller for splitting rotationally symmetrical workpieces on a spinning machine is provided. The spinning roller is formed as a double splitting roller having two splitting edges arranged at a distance from one another in the axial direction of the spinning roller. A groove is provided between the two splitting edges. The groove is laterally bounded by a flank of the two splitting edges. To form specifically-shaped workpieces, the spinning roller can be alternatively formed of selected component parts including a first splitting edge, a second splitting edge and a spacer located between the two splitting edges.

The rolling equipment of workpiece for roll-in toothed portion and corresponding method

本发明涉及一种辊压设备，用于辊压具有齿部的工件、尤其是齿轮，具有(g)第一成型工具(14.1)，(h)至少一个第二成型工具(14.2)和至少一个引导装置(16)，该引导装置构造用于使成型工具(14.1，14.2)相对于工件以受引导的方式运动，使得能以第一成型工具(14.1)成型工件的齿面(38)的第一区域(Bl)，(i)其中，第一成型工具(14.1)具有第一滚子(46.1)，该第一滚子可绕第一工具旋转轴线(D14.1)旋转地受支承，(j)其中，第二成型工具(14.2)具有第二滚子(46.2)，该第二滚子可绕第二工具旋转轴线(D14.2)旋转地受支承，和k)其中，第一滚子(46.1)在其周边上具有第一有效轴向厚度(di)。根据本发明设置，第二滚子(46.2)在其周边上具有与第一有效轴向厚度(di)不同的第二有效轴向厚度(d2)，使得能以第二成型工具(14.2)成型齿齿面(38)的与第一区域不同的第二区域(B2)。本发明也涉及一种用于使用辊压设备辊压齿的方法。

Profiling process for annular parts

Deep-rolling roller head

本发明涉及一种深轧机器的深轧辊压头(1)，用于在曲轴的主轴颈(5)上通过深轧辊(3)深轧出半径或切削槽(4)，于圆周方向(6)上、在与主轴颈(5)的接触位置的两侧、由辊子保持架(7)将深轧辊固定在深轧辊压头(1)上，并且在辊子保持架中使深轧辊自由旋转地导引，其中，辊子保持架(7)通过辊子架(10)固定在深轧辊压头(1)上。深轧辊压头(1)的至少一个辊子保持架(7)形成为保持辊(9)，并且设有用于深轧辊(3)的形成为固定板(14)的固定装置。