EP3246104A1 - Method and device for manufacturing a formed element - Google Patents

Method and device for manufacturing a formed element Download PDF

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Publication number
EP3246104A1
EP3246104A1 EP16170138.8A EP16170138A EP3246104A1 EP 3246104 A1 EP3246104 A1 EP 3246104A1 EP 16170138 A EP16170138 A EP 16170138A EP 3246104 A1 EP3246104 A1 EP 3246104A1
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EP
European Patent Office
Prior art keywords
blank
forming
axial
region
thickened
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16170138.8A
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German (de)
French (fr)
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EP3246104B1 (en
Inventor
Benedikt Nillies
Peter Harenkamp
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Leifeld Metal Spinning GmbH
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Leifeld Metal Spinning GmbH
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Publication date
Application filed by Leifeld Metal Spinning GmbH filed Critical Leifeld Metal Spinning GmbH
Priority to EP16170138.8A priority Critical patent/EP3246104B1/en
Priority to PCT/EP2017/057188 priority patent/WO2017198382A1/en
Priority to CN201780037896.2A priority patent/CN109475913B/en
Priority to US16/301,683 priority patent/US20190291159A1/en
Priority to JP2018559951A priority patent/JP6768837B2/en
Publication of EP3246104A1 publication Critical patent/EP3246104A1/en
Application granted granted Critical
Publication of EP3246104B1 publication Critical patent/EP3246104B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/16—Spinning over shaping mandrels or formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/28—Making other particular articles wheels or the like gear wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
    • B21H1/04—Making articles shaped as bodies of revolution discs; disc wheels with rim, e.g. railways wheels or pulleys

Definitions

  • the invention relates to a method for producing a forming part from a blank, in which the blank is set in rotation and is radially fed to an outer edge of the blank at least one compression roll, which has a circumferential shaping groove, the outer edge of the blank is compressed to a thickened region, which is formed in accordance with the forming groove of the compression roller to a thickened edge contour, and the radial upsetting to an outer region of the Ronde laterally at least two axial forming rollers are switched on or assist, which cooperate in forming the edge contour, according to the preamble of claim 1.
  • the invention further relates to a compression roller having a roller base body with an upsetting region, which has a circumferential shaping groove for compressing and forming an edge region of the disc, according to the preamble of claim 9.
  • the invention relates to an apparatus for producing a Umformteils from a Ronde, with a drive device for rotating driving a Ronde and with at least one compression roller which is radially deliverable to the Ronde for compressing the outer edge of the Ronde, according to the preamble of claim 12th
  • lateral support rollers As a kind of lateral abutment, which contributes to the radial formation of the edge bead of the blank.
  • the forming rollers can mitausformen a radially inner bottom edge of the edge contour.
  • the invention has for its object to provide a method, a compression roller and a device with which a forming part can be processed from a Ronde particularly efficient with thickening of Rondenrandes.
  • the inventive method is characterized in that the two axial forming rollers are delivered to each other at least in an initial phase of the radial compression to the thickened region with an axial Front internationalesabstand, which is smaller than an axial width of the forming groove of the compression roll, wherein the thickened region is axially back-plunged ,
  • a basic idea of the invention is, at least in an initial phase of the radial compression of a blank, to relieve the at least one compression roller in that these side flanks of the thickened region are acted upon directly by two axial forming rollers.
  • the axial distance of the two opposing forming rollers is adjusted so that it is at least partially smaller than an axial width of the forming groove of the compression roller.
  • a particularly good friction reduction can be achieved according to a development of the invention in that the at least two axial forming rollers are switched on or delivered immediately behind and / or in front of the compression roller.
  • the paired forming rollers can be arranged only a few cm behind or in front of the compression roller.
  • a further advantageous embodiment of the invention is that the two axial forming rollers are adjusted axially to each other during the upsetting.
  • the axial forming rollers each have an axis of rotation which is radially directed to the axis of rotation of the blank.
  • the axial distance of the two axial forming rollers to each other is a distance which is preferably parallel to the axis of rotation of the Ronde.
  • the axes of rotation of the axial forming rollers may also be angled relative to the radial direction, so that a back-upsetting also on inclined flanks the thickened edge region of the Ronde is made possible.
  • an axial distance of the axial forming rollers can be increased to each other, so that a final shaping takes place substantially through the forming groove of the compression roller.
  • the forming rollers may have radially projecting shoulders, which serve as a stop or stop edge to form approximately a radial inner or underside of the edge contour.
  • the two axial forming rollers are radially adjusted during the upsetting.
  • an adaptation to a gradual reduction of the diameter of the tube during upsetting can take place.
  • the axial forming rollers are spaced from the thickened region and the thickened region is finally shaped to the edge contour by the at least one compression roller.
  • the forming groove is formed in the compression roller according to the edge contour of the blank to be formed.
  • a particularly efficient variant of the method according to an embodiment of the invention is that in the same clamping of the blank, an outer edge with the molded-on thickened edge contour is transferred to a spinning tool and a circumferential wall region is formed.
  • the blank is clamped between the spinning tool and a counterholder.
  • an edge thickening is carried out, in which case the thickened region of the circular blank is subsequently transferred to the spinning lining in the same clamping operation.
  • a cylindrical or cup-shaped workpiece with an inner contour can preferably be produced without cutting in accordance with the outer contour of the spinning tool.
  • the transfer be carried out by means of at least one compression roller.
  • the compression roller has a multiple function. This multifunctional upset roller reduces the number of necessary pressure rollers and tools.
  • the compression roll according to the invention is characterized in that in addition a radially projecting pressure region is provided, which is designed for pressing and / or for pressure-rolling.
  • the compression roller can thus fulfill a dual function. It is used for radial compression with radial force application and for transferring the radial edge region of the Ronde axially on the spinning chuck, wherein substantially axial forces are applied.
  • the compression roller is thus formed with a pivot bearing which receives both radial and axial forces.
  • a preferred embodiment of the compression roller according to the invention is that the compression area are arranged in an axial center portion and the pressing portion in a lateral edge portion of the roller body.
  • the pressing region is radially projecting and has a pressing radius.
  • the pressing region it is particularly advantageous for the pressing region to have, in cross-section, a radially projecting nose with a pressing radius and an inlet and / or outlet slope.
  • the inlet bevel can in particular be designed so that a folding of the radially directed Ronde section is effected by an axial movement of the compression roller.
  • the inventive device for producing a forming part from a blank is characterized in that the above-described compression roller is provided.
  • a spinning chuck is provided, on which an outer profiling is formed, on which an edge portion of the blank for forming a Umformteils with inner profiling can be folded.
  • the spinning lining is part of it a clamping device, wherein the Ronde is axially clamped between the spinning chuck and a counter-holder. Due to the preceding thickening, sufficient material is available to fill the external profile reliably.
  • a rotationally symmetrical blank 1 made of a sheet metal material is clamped axially between a spinning chuck 12 and a counterholder 20.
  • the clamped Ronde 1 is set in rotation.
  • a compression roller 50 Radially from the outside, a compression roller 50 is delivered with a roller body 52 to an outer edge of the blank 1.
  • An upsetting region 54 with a circumferential shaping groove 56 is formed on the roller main body 52 in a middle section. The outer edge of the blank 1 is received in the forming groove 56, which defines an outer contour of the blanking area to be compressed.
  • the roller main body 52 is attached to a compression roller shaft 74 which is rotatably supported by a radial bearing 76 and a thrust bearing assembly 78 in a holder 80.
  • a compression roller shaft 74 which is rotatably supported by a radial bearing 76 and a thrust bearing assembly 78 in a holder 80.
  • radial bearings 76 and thrust bearing 78 both forming forces in the radial direction and in the axial direction can be added.
  • a first axial forming roller 41 and a second axial forming roller 42 are provided, which are employed axially opposite to the Ronde 1 to be formed.
  • the first axial forming roller 41 and the second axial forming roller 42 have an axial forming pitch which is smaller than an axial width of the forming groove 56 of the compression roller 50.
  • the two forming rollers 41, 42 are respectively attached to a roller shaft 43 which is rotatable are stored in a first roller holder 45 and a second roller holder 46.
  • the first roller holder 45 and the second roller holder 46 are adjustably mounted on a guide support 48. The adjustment can be made via an adjusting device, not shown, in particular adjusting cylinder or a spindle drive.
  • the outer edge of the Ronde 1 is compressed.
  • the compressed material initially applies to a groove bottom 59 and then to flanks 58 of the molding groove 56.
  • the flanks 58 of the forming roller 50 and the adjacent material of the blank 1 to a different direction of movement.
  • the two axial forming rollers 41, 42 are axially delivered to the thickening Rondenrand, with a certain axial remindsclaim, for example, about 10% of the wall thickness, the thickened portion of the round blank 1 takes place.
  • a friction contact is at least reduced upon re-entry of the thickened area in the compression roller 50.
  • the friction wear, a geglageWarende friction heating and a load of the compression roller 50 reduce significantly.
  • the axial forming rollers 41, 42 can be further spaced at least to an axial distance corresponding to the width of the forming groove 56, so that the thickened edge contour 3 on the blank 1 significantly by the contour of the mold groove 56th the compression roller 50 is formed.
  • FIGS. 3 and 4 is illustrated that during radial compression an outer diameter of the blank 1 decreases, at the same time a thickened edge contour 3 is formed along the outer edge.
  • FIG. 5 A final phase of the shaping of the thickened edge contour 3 with the compression roller 50 and the two axial forming rollers 41, 42, is shown schematically in FIG Fig. 5 shown.
  • Fig. 5 It can also be seen that an outer profiling 14 is provided on an outer side of the spinning chuck 12. In the illustrated embodiment, the outer profile 14 is designed as an axial keyway.
  • the upset roll 50 according to the invention is provided with the molding groove 56 with an edge-side pressing region 60 in addition to the central swaging region 54.
  • a radially projecting nose 62 is provided with a pressure radius, which merges on the one hand in an inlet slope 64 and on the other hand in a discharge slope 66.
  • the upset roller 50 according to the invention can also have an opposite end-pressing region 70, with which a front side of the workpiece to be formed can be processed.
  • a further flow-forming roller 30 can be delivered to the periphery of the workpiece for folding.
  • a frontal profile 16 are formed.
  • the compression roller 50 can be delivered to a front side of the Umformmaschines 9 with a forehead-pressing portion 70.
  • the only schematically indicated upset roller 50 has in the end-pressing region 70 on a projecting, approximately rectangular pressing edge.
  • the forming member 9 Upon completion of the final forming step, the forming member 9 is ejected from the spinning chuck 12 by means of a slidable annular ejector 90 and removed.
  • the forming part 9 may be a clutch disk carrier for an automatic transmission. Then, to form another workpiece, a new round blank 1 can be delivered to the device 10 and clamped between the spinning chuck 12 and the counter-holder 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)

Abstract

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Herstellen eines Umformteils (9) aus einer Ronde (1), wobei die Ronde (1) in Rotation versetzt und an einen Außenrand der Ronde (1) mindestens eine Stauchrolle (50) radial zugestellt wird, welche eine umlaufende Formnut (56) aufweist. Der Außenrand der Ronde (1) wird zu einem verdickten Bereich gestaucht, welcher entsprechend der Formnut (56) der Stauchrolle (50) zu einer verdickten Randkontur geformt wird. Beim radialen Stauchen werden an einem Außenbereich der Ronde (1) mindestens zwei axiale Umformrollen (41, 42) zugestellt, welche beim Formen der Randkontur mitwirken. Gemäß der Erfindung ist vorgesehen, dass die zwei axialen Umformrollen (41, 42) zumindest in einer Anfangsphase des radialen Stauchens an dem verdickten Bereich mit einem axialen Formgebungsabstand zueinander zugestellt werden, welcher kleiner ist als eine axiale Breite der Formnut (56) der Stauchrolle (50), wobei der verdickte Bereich axial rückgestaucht wird.The invention relates to a method and an apparatus for producing a forming part (9) from a blank (1), wherein the blank (1) is set in rotation and at least one compression roll (50) is radially delivered to an outer edge of the blank (1). which has a circumferential shaping groove (56). The outer edge of the blank (1) is compressed to a thickened area, which is formed according to the forming groove (56) of the compression roller (50) to a thickened edge contour. In radial compression at least two axial forming rollers (41, 42) are delivered to an outer region of the Ronde (1), which cooperate in forming the edge contour. According to the invention, it is provided that the two axial forming rollers (41, 42) are delivered to each other at least in an initial phase of radial compression at the thickened region with an axial forming distance which is smaller than an axial width of the forming groove (56) of the compression roll ( 50), wherein the thickened portion is axially backpressed.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen eines Umformteils aus einer Ronde, bei dem die Ronde in Rotation versetzt und an einen Außenrand der Ronde mindestens eine Stauchrolle radial zugestellt wird, welche eine umlaufende Formnut aufweist, der Außenrand der Ronde zu einem verdickten Bereich gestaucht wird, welcher entsprechend der Formnut der Stauchrolle zu einer verdickten Randkontur geformt wird, und beim radialen Stauchen an einen Außenbereich der Ronde seitlich mindestens zwei axiale Umformrollen an- oder zugestellt werden, welche beim Formen der Randkontur mitwirken, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a method for producing a forming part from a blank, in which the blank is set in rotation and is radially fed to an outer edge of the blank at least one compression roll, which has a circumferential shaping groove, the outer edge of the blank is compressed to a thickened region, which is formed in accordance with the forming groove of the compression roller to a thickened edge contour, and the radial upsetting to an outer region of the Ronde laterally at least two axial forming rollers are switched on or assist, which cooperate in forming the edge contour, according to the preamble of claim 1.

Die Erfindung betrifft weiterhin eine Stauchrolle mit einem Rollengrundkörper mit einem Stauchbereich, welcher eine umlaufende Formnut zum Stauchen und Formen eines Randbereichs der Ronde aufweist, gemäß dem Oberbegriff des Anspruchs 9.The invention further relates to a compression roller having a roller base body with an upsetting region, which has a circumferential shaping groove for compressing and forming an edge region of the disc, according to the preamble of claim 9.

Weiterhin betrifft die Erfindung eine Vorrichtung zum Herstellen eines Umformteils aus einer Ronde, mit einer Antriebseinrichtung zum rotierenden Antreiben einer Ronde und mit mindestens einer Stauchrolle, welche an die Ronde zum Stauchen des Außenrandes der Ronde radial zustellbar ist, gemäß dem Oberbegriff des Anspruchs 12.Furthermore, the invention relates to an apparatus for producing a Umformteils from a Ronde, with a drive device for rotating driving a Ronde and with at least one compression roller which is radially deliverable to the Ronde for compressing the outer edge of the Ronde, according to the preamble of claim 12th

Es ist bekannt, eine Ronde, also ein rotationssymmetrisches Blechwerkstück, durch radiales Zustellen einer Stauchrolle mit einer umlaufenden Stauch- oder Formnut zum Bilden einer Materialansammlung zu stauchen. In die Materialansammlung kann dann beispielsweise eine Verzahnung zum Bilden eines Zahnrades oder eines Starterkranzes spanlos eingeformt oder spannabhebend eingeschnitten werden. Aufgrund der radialen Zustellung der Stauchrolle werden erhebliche radiale Kräfte auf die Ronde ausgeübt. Um ein Abknicken des Rondenrandes beim Stauchen zu vermeiden, ist es aus der DE 102 11 135 B4 bekannt, die Ronde durch seitliche Stützrollen unmittelbar unterhalb des Stauchbereiches abzustützen.It is known to compress a blank, that is to say a rotationally symmetrical sheet metal workpiece, by radially feeding an upsetting roll with a peripheral upsetting or shaping groove for forming a material accumulation. In the accumulation of material then, for example, a toothing for forming a gear or a starter ring can be formed without cutting or cut span removing. Due to the radial delivery of the compression roller considerable radial forces are exerted on the Ronde. To avoid kinking the Rondenrandes when upsetting, it is from the DE 102 11 135 B4 known to support the Ronde by lateral support rollers immediately below the compression area.

Aus der DE 196 02 298 C2 ist es zudem bekannt, die seitlichen Stützrollen als eine Art seitliches Widerlager einzusetzen, das zur radialen Ausformung des Randwulstes der Ronde beiträgt. Dabei können die Umformrollen einen radial innenliegenden unteren Rand der Randkontur mitausformen.From the DE 196 02 298 C2 It is also known to use the lateral support rollers as a kind of lateral abutment, which contributes to the radial formation of the edge bead of the blank. The forming rollers can mitausformen a radially inner bottom edge of the edge contour.

Beim radialen Stauchen eines Rondenrandes mittels einer Stauchrolle mit umlaufender Formnut treten erhebliche Belastungen an der Stauchrolle auf. Sobald der Nutgrund der Formnut mit dem Rondenaußenrand in Kontakt steht, wird durch die radiale Zustellung der Stauchrolle Material der Ronde zunächst axial zu beiden Seiten verdrängt. Das verdrängte Material wird mit zunehmender radialer Zustellung dann entlang den Flanken der Stauchrolle in radialer Richtung nach innen geleitet und weiter verdickt, wobei der Rondendurchmesser allmählich verkleinert wird. Dabei tritt entlang den Flanken der Formnut eine erhebliche Reibung aufgrund der unterschiedlichen Bewegung zwischen Ronde und Stauchrolle in Umfangsrichtung auf. Es kann sich eine entsprechend starke Reibungserwärmung ergeben, durch welche die Gefügestruktur des Werkstücks beeinträchtigt werden kann.When radial upsetting a Rondenrandes by means of a compression roller with circumferential mold groove occur significant loads on the compression roller. As soon as the groove bottom of the forming groove is in contact with the outer rim of the blank, material of the blank is initially displaced axially on both sides by the radial feed of the compression roll. The displaced material is then directed radially inwardly along the flanks of the compression roll with increasing radial feed and further thickened, wherein the diameter of the tube is gradually reduced. In this case, occurs along the edges of the forming groove considerable friction due to the different movement between Ronde and compression roll in the circumferential direction. It can result in a correspondingly strong friction heating, by which the microstructure of the workpiece can be affected.

Zur Minderung der Belastungen ist aus der WO 96/22847 A1 oder der US 5,878,493 A bekannt, das Stauchen stufenweise mit mehreren verschiedenen Stauchrollen durchzuführen, welche unterschiedliche Flankenwinkel in den Formnuten aufweisen. Die Verwendung einer Vielzahl unterschiedlicher Stauchrollen ist kosten- und zeitaufwändig.To reduce the burden is from the WO 96/22847 A1 or the US 5,878,493 A known to perform the upsetting stepwise with several different compression rollers, which have different flank angles in the form of grooves. The use of a variety of different compression rollers is costly and time consuming.

Der Erfindung liegt Aufgabe zugrunde, ein Verfahren, eine Stauchrolle und eine Vorrichtung anzugeben, mit welchem ein Umformteil aus einer Ronde besonders effizient unter Verdickung des Rondenrandes bearbeitet werden kann.The invention has for its object to provide a method, a compression roller and a device with which a forming part can be processed from a Ronde particularly efficient with thickening of Rondenrandes.

Die Aufgabe wird durch ein Verfahren mit dem Merkmal des Anspruchs 1, eine Stauchrolle mit dem Merkmal des Anspruchs 9 sowie eine Vorrichtung mit den Merkmalen des Anspruchs 12 gelöst. Bevorzugte Ausführungsformen der Erfindung sind in den jeweils abhängigen Ansprüchen angegeben.The object is achieved by a method having the feature of claim 1, a compression roller having the feature of claim 9 and an apparatus having the features of claim 12. Preferred embodiments of the invention are specified in the respective dependent claims.

Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass die zwei axialen Umformrollen zumindest in einer Anfangsphase des radialen Stauchens an den verdickten Bereich mit einem axialen Frontgebungsabstand zueinander zugestellt werden, welcher kleiner ist als eine axiale Breite der Formnut der Stauchrolle, wobei der verdickte Bereich axial rückgestaucht wird.The inventive method is characterized in that the two axial forming rollers are delivered to each other at least in an initial phase of the radial compression to the thickened region with an axial Frontgebungsabstand, which is smaller than an axial width of the forming groove of the compression roll, wherein the thickened region is axially back-plunged ,

Eine Grundidee der Erfindung besteht darin, zumindest in einer Anfangsphase des radialen Stauchens einer Ronde die mindestens eine Stauchrolle dadurch zu entlasten, dass diese Seitenflanken des verdickten Bereiches unmittelbar durch zwei axiale Umformrollen beaufschlagt werden. Der axiale Abstand der beiden gegenüberliegenden Umformrollen ist dabei so eingestellt, dass dieser zumindest bereichsweise kleiner ist als eine axiale Breite der Formnut der Stauchrolle. Durch die zwei axialen Umformrollen wird also der verdickte Bereich nach Austritt aus der Formnut der Stauchrolle axial zu einer Dicke rückgestaucht, welche kleiner ist als eine Breite der Formnut. Durch dieses Rückstauchen des verdickten Bereiches in axialer Richtung reduziert sich bei Wiedereintritt des rückgestauchten Bereiches in die Stauchrolle die Kontaktfläche und damit die Reibung zwischen den Flanken der Formnut und den Flanken des verdickten Bereiches. Hierdurch reduzieren sich entsprechend die Belastung der Stauchrolle, der Reibungsverschleiß sowie die Reibungserwärmung in der Umformzone. Damit lässt sich ein insgesamt schonenderes Umformen sowohl für das Gefüge des Werkstücks als auch für die Stauchrolle selbst erreichen.A basic idea of the invention is, at least in an initial phase of the radial compression of a blank, to relieve the at least one compression roller in that these side flanks of the thickened region are acted upon directly by two axial forming rollers. The axial distance of the two opposing forming rollers is adjusted so that it is at least partially smaller than an axial width of the forming groove of the compression roller. By the two axial forming rollers so the thickened area is back-ejected after exiting the forming groove of the compression roller axially to a thickness which is smaller than a width of the forming groove. As a result of this back-upsetting of the thickened region in the axial direction, upon re-entry of the back-upsided region into the compression roll, the contact surface and thus the friction between the flanks of the shaping groove and the flanks of the thickened region are reduced. As a result, the load on the compression roller, the friction wear and the friction heating in the forming zone are correspondingly reduced. This makes it possible to achieve a generally gentler forming both for the structure of the workpiece and for the compression roller itself.

Eine besonders gute Reibungsreduktion lässt sich nach einer Weiterbildung der Erfindung dadurch erreichen, dass die mindestens zwei axialen Umformrollen unmittelbar hinter und/oder vor der Stauchrolle an- oder zugestellt werden. Dabei können die paarweise angeordneten Umformrollen nur wenige cm hinter oder vor der Stauchrolle angeordnet sein.A particularly good friction reduction can be achieved according to a development of the invention in that the at least two axial forming rollers are switched on or delivered immediately behind and / or in front of the compression roller. The paired forming rollers can be arranged only a few cm behind or in front of the compression roller.

Eine weitere vorteilhafte Ausführungsform der Erfindung besteht darin, dass die zwei axialen Umformrollen während des Stauchens axial zueinander verstellt werden. Die axialen Umformrollen weisen jeweils eine Drehachse auf, welche radial gerichtet zur Drehachse der Ronde ist. Der axiale Abstand der zwei axialen Umformrollen zueinander ist eine Strecke, welche vorzugsweise parallel zur Drehachse der Ronde ist. Die Drehachsen der axialen Umformrollen können gegenüber der Radialrichtung auch angewinkelt sein, so dass ein Rückstauchen auch an schräggerichteten Flanken des verdickten Randbereiches der Ronde ermöglicht wird. Durch ein axiales Verstellen der Umformrollen zueinander kann die Kontaktfläche zwischen Ronde und Umformrollen eingestellt werden, wobei sich entsprechend die Reibung verändert. Insbesondere zum Ende des radialen Stauchens kann ein axialer Abstand der axialen Umformrollen zueinander vergrößert werden, so dass ein Endformen im Wesentlichen durch die Formnut der Stauchrolle erfolgt. Die Umformrollen können radial vorspringende Absätze aufweisen, welche als eine Anschlag- oder Stopkante dienen, um etwa eine radiale Innen- oder Unterseite der Randkontur zu formen.A further advantageous embodiment of the invention is that the two axial forming rollers are adjusted axially to each other during the upsetting. The axial forming rollers each have an axis of rotation which is radially directed to the axis of rotation of the blank. The axial distance of the two axial forming rollers to each other is a distance which is preferably parallel to the axis of rotation of the Ronde. The axes of rotation of the axial forming rollers may also be angled relative to the radial direction, so that a back-upsetting also on inclined flanks the thickened edge region of the Ronde is made possible. By an axial adjustment of the forming rollers to each other, the contact surface between Ronde and forming rollers can be adjusted, which changes according to the friction. In particular, towards the end of the radial compression, an axial distance of the axial forming rollers can be increased to each other, so that a final shaping takes place substantially through the forming groove of the compression roller. The forming rollers may have radially projecting shoulders, which serve as a stop or stop edge to form approximately a radial inner or underside of the edge contour.

Weiterhin ist es nach einer Ausführungsvariante des erfindungsgemäßen Verfahrens vorteilhaft, dass die zwei axialen Umformrollen während des Stauchens radial verstellt werden. Hierdurch kann insbesondere eine Anpassung an eine allmähliche Verringerung des Rondendurchmessers beim Stauchen erfolgen.Furthermore, it is advantageous according to an embodiment of the method according to the invention that the two axial forming rollers are radially adjusted during the upsetting. In this way, in particular, an adaptation to a gradual reduction of the diameter of the tube during upsetting can take place.

Für eine präzise Formung der verdickten Randkontur ist es nach einer Ausführungsvariante der Erfindung vorteilhaft, dass in einer Endphase des radialen Stauchens die axialen Umformrollen von dem verdickten Bereich beabstandet werden und der verdickte Bereich durch die mindestens eine Stauchrolle zu der Randkontur endgeformt wird. Dabei ist die Formnut in der Stauchrolle entsprechend der zu bildenden Randkontur der Ronde ausgebildet.For a precise shaping of the thickened edge contour, it is advantageous according to an embodiment variant of the invention that in an end phase of the radial compression, the axial forming rollers are spaced from the thickened region and the thickened region is finally shaped to the edge contour by the at least one compression roller. In this case, the forming groove is formed in the compression roller according to the edge contour of the blank to be formed.

Eine besonders effiziente Verfahrensvariante besteht nach einer Weiterbildung der Erfindung darin, dass in derselben Einspannung der Ronde ein Außenrand mit der angeformten verdickten Randkontur auf ein Drückwerkzeug umgelegt und ein Umfangswandbereich geformt wird. Die Ronde wird dabei zwischen dem Drückwerkzeug und einem Gegenhalter eingespannt. In einem ersten Schritt wird eine Randverdickung durchgeführt, wobei dann anschließend in derselben Einspannung der verdickte Bereich der Ronde auf das Drückfutter umgelegt wird. Hierdurch kann ein zylindrisches oder topfförmiges Werkstück mit einer Innenkontur vorzugsweise entsprechend der Außenkontur des Drückwerkzeugs spanlos hergestellt werden.A particularly efficient variant of the method according to an embodiment of the invention is that in the same clamping of the blank, an outer edge with the molded-on thickened edge contour is transferred to a spinning tool and a circumferential wall region is formed. The blank is clamped between the spinning tool and a counterholder. In a first step, an edge thickening is carried out, in which case the thickened region of the circular blank is subsequently transferred to the spinning lining in the same clamping operation. In this way, a cylindrical or cup-shaped workpiece with an inner contour can preferably be produced without cutting in accordance with the outer contour of the spinning tool.

Dabei ist es besonders vorteilhaft, dass das Umlegen mittels mindestens einer Stauchrolle durchgeführt werden. Die Stauchrolle hat dabei eine mehrfache Funktion. Durch diese Multifunktions-Stauchrolle kann die Anzahl notwendiger Drückrollen und der Werkzeuge reduziert werden.It is particularly advantageous that the transfer be carried out by means of at least one compression roller. The compression roller has a multiple function. This multifunctional upset roller reduces the number of necessary pressure rollers and tools.

Zum effizienten Formen nach einer erfindungsgemäßen Verfahrensvariante ist es vorteilhaft, dass beim Umlegen die verdickte Randkontur in eine Außenprofilierung, insbesondere ein Keilnutprofil oder eine Verzahnung eingeformt wird, welche an dem Drückfutter ausgebildet ist. Es bildet sich an der Umfangswand ein entsprechendes Innenprofil aus. Grundsätzlich können auch andere Profile und Konturen eingeformt werden.For efficient shaping according to a variant of the invention, it is advantageous that when folding the thickened edge contour in an external profile, in particular a keyway or a toothing is formed, which is formed on the spinning chuck. It forms on the peripheral wall of a corresponding inner profile. In principle, other profiles and contours can be molded.

Die erfindungsgemäße Stauchrolle ist dadurch gekennzeichnet, dass zusätzlich ein radial vorspringender Drückbereich vorgesehen ist, welcher zum Drücken und/oder zum Drückwalzen ausgebildet ist.The compression roll according to the invention is characterized in that in addition a radially projecting pressure region is provided, which is designed for pressing and / or for pressure-rolling.

Die Stauchrolle kann somit eine doppelte Funktion erfüllen. Sie dient zum radialen Stauchen mit radialer Kraftaufbringung sowie zum Umlegen des radialen Randbereiches der Ronde axial auf das Drückfutter, wobei im Wesentlichen axiale Kräfte aufgebracht werden. Die Stauchrolle ist somit mit einem Drehlager ausgebildet, welches sowohl radiale als auch axiale Kräfte aufnimmt.The compression roller can thus fulfill a dual function. It is used for radial compression with radial force application and for transferring the radial edge region of the Ronde axially on the spinning chuck, wherein substantially axial forces are applied. The compression roller is thus formed with a pivot bearing which receives both radial and axial forces.

Eine bevorzugte Ausführungsvariante der erfindungsgemäßen Stauchrolle besteht darin, dass der Stauchbereich in einem axialen Mittenabschnitt und der Drückbereich in einem seitlichen Randabschnitt des Rollenkörpers angeordnet sind. Der Drückbereich ist dabei radial vorspringend und weist einen Drückradius auf.A preferred embodiment of the compression roller according to the invention is that the compression area are arranged in an axial center portion and the pressing portion in a lateral edge portion of the roller body. The pressing region is radially projecting and has a pressing radius.

Besonders vorteilhaft ist es nach einer Ausführungsvariante, dass der Drückbereich im Querschnitt eine radial vorspringende Nase mit einem Drückradius und einer Einlauf- und/oder Auslaufschräge aufweist. Die Einlaufschräge kann dabei insbesondere so ausgebildet sein, dass ein Umlegen des radial gerichteten Rondenabschnitts durch eine Axialbewegung der Stauchrolle erfolgt.According to a variant embodiment, it is particularly advantageous for the pressing region to have, in cross-section, a radially projecting nose with a pressing radius and an inlet and / or outlet slope. The inlet bevel can in particular be designed so that a folding of the radially directed Ronde section is effected by an axial movement of the compression roller.

Die erfindungsgemäße Vorrichtung zum Herstellen eines Umformteils aus einer Ronde ist dadurch gekennzeichnet, dass die vorbeschriebene Stauchrolle vorgesehen ist.The inventive device for producing a forming part from a blank is characterized in that the above-described compression roller is provided.

Dabei ist es nach einer Ausführungsform der Erfindung besonders bevorzugt, dass zum Einspannen der Ronde ein Drückfutter vorgesehen ist, an welchem eine Außenprofilierung ausgebildet ist, auf welche ein Randabschnitt der Ronde zum Bilden eines Umformteils mit Innenprofilierung umlegbar ist. Das Drückfutter ist dabei Teil einer Spanneinrichtung, wobei die Ronde zwischen Drückfutter und einem Gegenhalter axial eingespannt wird. Durch die vorausgehende Verdickung steht ausreichend Material zur Verfügung, um die Außenprofilierung zuverlässig auszufüllen.It is according to an embodiment of the invention particularly preferred that for clamping the Ronde a spinning chuck is provided, on which an outer profiling is formed, on which an edge portion of the blank for forming a Umformteils with inner profiling can be folded. The spinning lining is part of it a clamping device, wherein the Ronde is axially clamped between the spinning chuck and a counter-holder. Due to the preceding thickening, sufficient material is available to fill the external profile reliably.

Die Erfindung wird nachfolgend anhand von bevorzugten Ausführungsbeispielen weiter beschrieben, welche schematisch in den beigefügten Zeichnungen dargestellt sind. In den Zeichnungen zeigen:

Fig. 1
eine Teilquerschnittsansicht durch eine erfindungsgemäße Vorrichtung beim Beginn eines radialen Stauchens einer Ronde;
Fig. 2
eine Darstellung gemäß Fig. 1 zum Ende des radialen Stauchens der Ronde;
Fig. 3
eine Teilquerschnittsansicht der Ronde vor dem Stauchen;
Fig. 4
eine Teilquerschnittsansicht der Ronde nach dem Stauchen;
Fig. 5
eine schematische Seitenansicht der erfindungsgemäßen Vorrichtung entsprechend Fig. 2;
Fig. 6
eine Teilquerschnittsansicht der erfindungsgemäßen Vorrichtung beim Umlegen eines Rondenrandes auf ein profiliertes Drückfutter; und
Fig. 7
eine Teilquerschnittsansicht entsprechend Fig. 6 beim Endformen eines Umformteiles.
The invention will be further described by means of preferred embodiments, which are shown schematically in the accompanying drawings. In the drawings show:
Fig. 1
a partial cross-sectional view through a device according to the invention at the beginning of a radial upsetting of a blank;
Fig. 2
a representation according to Fig. 1 to the end of the radial upsetting of the blank;
Fig. 3
a partial cross-sectional view of the blank before upsetting;
Fig. 4
a partial cross-sectional view of the blank after upsetting;
Fig. 5
a schematic side view of the device according to the invention Fig. 2 ;
Fig. 6
a partial cross-sectional view of the device according to the invention when transferring a Rondenrandes on a profiled spinning lining; and
Fig. 7
a partial cross-sectional view corresponding Fig. 6 during final forming of a formed part.

Gemäß Fig. 1 wird bei einer erfindungsgemäßen Vorrichtung 10 zum Herstellen eines Umformteiles eine rotationssymmetrische Ronde 1 aus einem Blechmaterial zentrisch zwischen einem Drückfutter 12 und einem Gegenhalter 20 axial eingespannt. Über einen nicht dargestellten Drehantrieb wird die eingespannte Ronde 1 in Rotation versetzt.According to Fig. 1 In a device 10 according to the invention for producing a forming part, a rotationally symmetrical blank 1 made of a sheet metal material is clamped axially between a spinning chuck 12 and a counterholder 20. About a rotary drive, not shown, the clamped Ronde 1 is set in rotation.

Radial von außen wird eine Stauchrolle 50 mit einem Rollengrundkörper 52 an einen Außenrand der Ronde 1 zugestellt. An dem Rollengrundkörper 52 ist in einem Mittenabschnitt ein Stauchbereich 54 mit einer umlaufenden Formnut 56 ausgebildet. Der Außenrand der Ronde 1 wird in der Formnut 56 aufgenommen, welche eine Außenkontur des zu stauchenden Rondenbereiches vorgibt.Radially from the outside, a compression roller 50 is delivered with a roller body 52 to an outer edge of the blank 1. An upsetting region 54 with a circumferential shaping groove 56 is formed on the roller main body 52 in a middle section. The outer edge of the blank 1 is received in the forming groove 56, which defines an outer contour of the blanking area to be compressed.

Der Rollengrundkörper 52 ist an einer Stauchrollenwelle 74 angebracht, welche über ein Radiallager 76 und eine Axiallageranordnung 78 in einem Halter 80 drehbar gelagert ist. Über die Lagerung mittels Radiallager 76 und Axiallager 78 können sowohl Umformkräfte in radialer Richtung und in axialer Richtung aufgenommen werden.The roller main body 52 is attached to a compression roller shaft 74 which is rotatably supported by a radial bearing 76 and a thrust bearing assembly 78 in a holder 80. About the storage by means of radial bearings 76 and thrust bearing 78 both forming forces in the radial direction and in the axial direction can be added.

Radial gegenüberliegend zur Stauchrolle 50 sind eine erste axiale Umformrolle 41 und eine zweite axiale Umformrolle 42 vorgesehen, welche gegenüberliegend axial an die umzuformende Ronde 1 angestellt werden. In dem Umformbereich weisen die erste axiale Umformrolle 41 und die zweite axiale Umformrolle 42 einen axialen Formgebungsabstand auf, welcher kleiner ist als eine axiale Breite der Formnut 56 der Stauchrolle 50. Die beiden Umformrollen 41, 42 sind jeweils an einer Rollenwelle 43 angebracht, welche drehbar in einem ersten Rollenhalter 45 beziehungsweise einem zweiten Rollenhalter 46 gelagert sind. Der erste Rollenhalter 45 und der zweite Rollenhalter 46 sind verstellbar an einem Führungsträger 48 gelagert. Die Verstellung kann über eine nicht dargestellte Verstelleinrichtung, insbesondere Stellzylinder oder einen Spindelantrieb erfolgen.Radially opposite to the compression roller 50, a first axial forming roller 41 and a second axial forming roller 42 are provided, which are employed axially opposite to the Ronde 1 to be formed. In the forming area, the first axial forming roller 41 and the second axial forming roller 42 have an axial forming pitch which is smaller than an axial width of the forming groove 56 of the compression roller 50. The two forming rollers 41, 42 are respectively attached to a roller shaft 43 which is rotatable are stored in a first roller holder 45 and a second roller holder 46. The first roller holder 45 and the second roller holder 46 are adjustably mounted on a guide support 48. The adjustment can be made via an adjusting device, not shown, in particular adjusting cylinder or a spindle drive.

Durch radiales Zustellen der Stauchrolle 50 an die rotierende Ronde 1 wird der Außenrand der Ronde 1 gestaucht. Dabei legt sich das gestauchte Material zunächst an einen Nutgrund 59 und anschließend an Flanken 58 der Formnut 56 an. Anders als am Nutgrund 59 weisen die Flanken 58 der Umformrolle 50 und das anliegende Material der Ronde 1 eine unterschiedliche Bewegungsrichtung auf. Zur Reduzierung der Reibung werden an dem sich verdickenden Rondenrand die beiden axialen Umformrollen 41, 42 axial zugestellt, wobei ein gewisses axiales Rückstauchen, beispielsweise von etwa 10 % der Wanddicke, des verdickten Bereiches der Ronde 1 erfolgt. Hierdurch wird beim Wiedereintritt des verdickten Bereiches in die Stauchrolle 50 ein Reibungskontakt zumindest vermindert. Hierdurch reduzieren sich der Reibungsverschleiß, eine gefügeschädigende Reibungserwärmung sowie eine Belastung der Stauchrolle 50 erheblich.By radially feeding the compression roller 50 to the rotating Ronde 1, the outer edge of the Ronde 1 is compressed. In this case, the compressed material initially applies to a groove bottom 59 and then to flanks 58 of the molding groove 56. Unlike the groove bottom 59, the flanks 58 of the forming roller 50 and the adjacent material of the blank 1 to a different direction of movement. To reduce the friction, the two axial forming rollers 41, 42 are axially delivered to the thickening Rondenrand, with a certain axial Rückstauchen, for example, about 10% of the wall thickness, the thickened portion of the round blank 1 takes place. As a result, a friction contact is at least reduced upon re-entry of the thickened area in the compression roller 50. As a result, the friction wear, a gefügeschädigende friction heating and a load of the compression roller 50 reduce significantly.

Zum Ende der Formung der verdickten Randkontur 3 der Ronde 1 können die axialen Umformrollen 41, 42 zumindest auf einen axialen Abstand entsprechend der Breite der Formnut 56 weiter beabstandet werden, so dass die verdickte Randkontur 3 an der Ronde 1 maßgeblich durch die Kontur der Formnut 56 der Stauchrolle 50 geformt wird.At the end of the shaping of the thickened edge contour 3 of the round blank 1, the axial forming rollers 41, 42 can be further spaced at least to an axial distance corresponding to the width of the forming groove 56, so that the thickened edge contour 3 on the blank 1 significantly by the contour of the mold groove 56th the compression roller 50 is formed.

In den Figuren 3 und 4 ist verdeutlicht, dass beim radialen Stauchen ein Außendurchmesser der Ronde 1 abnimmt, wobei gleichzeitig eine verdickte Randkontur 3 entlang des Außenrandes gebildet wird.In the FIGS. 3 and 4 is illustrated that during radial compression an outer diameter of the blank 1 decreases, at the same time a thickened edge contour 3 is formed along the outer edge.

Eine Endphase der Formung der verdickten Randkontur 3 mit der Stauchrolle 50 und den beiden axialen Umformrollen 41, 42, ist schematisch in Fig. 5 gezeigt. Fig. 5 ist ebenfalls zu entnehmen, dass an einer Außenseite des Drückfutters 12 eine Außenprofilierung 14 vorgesehen ist. In dem dargestellten Ausführungsbeispiel ist die Außenprofilierung 14 als ein axiales Keilnutprofil ausgeführt.A final phase of the shaping of the thickened edge contour 3 with the compression roller 50 and the two axial forming rollers 41, 42, is shown schematically in FIG Fig. 5 shown. Fig. 5 It can also be seen that an outer profiling 14 is provided on an outer side of the spinning chuck 12. In the illustrated embodiment, the outer profile 14 is designed as an axial keyway.

Mittels einer oder mehrerer Stauchrollen 50 kann der Außenrand der Ronde 1 mit der verdickten Randkontur 3 auf die Außenprofilierung 14 des Drückfutters 12 axial umgelegt werden, wie schematisch in Fig. 6 dargestellt ist. Hierzu ist die erfindungsgemäße Stauchrolle 50 neben dem mittigen Stauchbereich 54 mit der Formnut 56 mit einem randseitigen Drückbereich 60 versehen. Am Drückbereich 60 ist eine radial vorspringende Nase 62 mit einem Drückradius vorgesehen, welcher einerseits in eine Einlaufschräge 64 und andererseits in eine Auslaufschräge 66 übergeht. Weiterhin kann die erfindungsgemäße Stauchrolle 50 noch einen gegenüberliegenden Stirn-Drückbereich 70 aufweisen, mit welchem eine Vorderseite des umzuformenden Werkstücks bearbeitet werden kann. Alternativ oder ergänzend kann zum Umlegen eine weitere Drückwalzrolle 30 an dem Umfang des Werkstücks zugestellt werden.By means of one or more compression rollers 50, the outer edge of the blank 1 with the thickened edge contour 3 can be axially transferred to the outer profile 14 of the spinning chuck 12, as shown schematically in FIG Fig. 6 is shown. For this purpose, the upset roll 50 according to the invention is provided with the molding groove 56 with an edge-side pressing region 60 in addition to the central swaging region 54. At the pressing portion 60, a radially projecting nose 62 is provided with a pressure radius, which merges on the one hand in an inlet slope 64 and on the other hand in a discharge slope 66. Furthermore, the upset roller 50 according to the invention can also have an opposite end-pressing region 70, with which a front side of the workpiece to be formed can be processed. Alternatively or additionally, a further flow-forming roller 30 can be delivered to the periphery of the workpiece for folding.

Bei dem dargestellten Ausführungsbeispiel kann zum Endformen des Umformteiles 9 abschließend gemäß der Darstellung von Fig. 7 noch ein Stirnprofil 16 eingeformt werden. Hierzu kann an eine Vorderseite des Umformteiles 9 die Stauchrolle 50 mit einem Stirn-Drückbereich 70 zugestellt werden. Die nur schematisch angedeutete Stauchrolle 50 weist in dem Stirn-Drückbereich 70 eine vorspringende, etwa rechtwinklige Drückkante auf.In the illustrated embodiment, for the final forming of the Umformteiles 9 finally according to the illustration of Fig. 7 still a frontal profile 16 are formed. For this purpose, the compression roller 50 can be delivered to a front side of the Umformteiles 9 with a forehead-pressing portion 70. The only schematically indicated upset roller 50 has in the end-pressing region 70 on a projecting, approximately rectangular pressing edge.

Nach Abschluss des letzten Formgebungsschritts wird das Umformteil 9 vom Drückfutter 12 mittels einer verschiebbaren, ringförmigen Auswerfereinrichtung 90 ausgestoßen und abgenommen. Das Umformteil 9 kann ein Kupplungslamellenträger für ein Automatikgetriebe sein. Sodann kann zum Formen eines weiteren Werkstücks eine neue Ronde 1 in die Vorrichtung 10 zugestellt und zwischen dem Drückfutter 12 und dem Gegenhalter 20 eingespannt werden.Upon completion of the final forming step, the forming member 9 is ejected from the spinning chuck 12 by means of a slidable annular ejector 90 and removed. The forming part 9 may be a clutch disk carrier for an automatic transmission. Then, to form another workpiece, a new round blank 1 can be delivered to the device 10 and clamped between the spinning chuck 12 and the counter-holder 20.

Claims (13)

Verfahren zum Herstellen eines Umformteils (9) aus einer Ronde (1), bei dem - die Ronde (1) in Rotation versetzt und an einen Außenrand der Ronde (1) mindestens eine Stauchrolle (50) radial zugestellt wird, welche eine umlaufende Formnut (56) aufweist, - der Außenrand der Ronde (1) zu einem verdickten Bereich gestaucht wird, welcher entsprechend der Formnut (56) der Stauchrolle (50) zu einer verdickten Randkontur (3) geformt wird, und - beim radialen Stauchen an einen Außenbereich der Ronde (1) seitlich mindestens zwei axiale Umformrollen (41, 42) an- oder zugestellt werden, welche beim Formen der gegenüberliegenden Randkontur (3) mitwirken, dadurch gekennzeichnet, - dass die zwei axialen Umformrollen (41, 42) zumindest in einer Anfangsphase des radialen Stauchens an den verdickten Bereich mit einem axialen Formgebungsabstand zueinander zugestellt werden, welcher kleiner ist als eine axiale Breite der Formnut (56) der Stauchrolle (50), wobei der verdickte Bereich axial rückgestaucht wird. Method for producing a forming part (9) from a blank (1), in which - The blank (1) is set in rotation and at an outer edge of the blank (1) at least one compression roller (50) is radially delivered, which has a circumferential shaping groove (56), - The outer edge of the blank (1) is compressed to a thickened portion which is formed according to the forming groove (56) of the compression roller (50) to a thickened edge contour (3), and - At the radial upsetting to an outer region of the blank (1) laterally at least two axial forming rollers (41, 42) are switched on or delivered, which participate in forming the opposite edge contour (3), characterized, - That the two axial forming rollers (41, 42) at least in an initial phase of the radial compression to the thickened region with an axial forming distance to each other be delivered, which is smaller than an axial width of the forming groove (56) of the compression roller (50), wherein the thickened area is axially backpressed. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die mindestens zwei axialen Umformrollen (41, 42) unmittelbar hinter und/oder vor der Stauchrolle (50) an- oder zugestellt werden.Method according to claim 1,
characterized,
Toggle that the at least two axial forming rollers (41, 42) immediately behind and / or in front of the compression roller (50) or be delivered. Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die zwei axialen Umformrollen (41, 42) während des Stauchens axial zueinander verstellt werden.Method according to claim 1 or 2,
characterized,
that the two axial forming rollers (41, 42) be adjusted axially during upsetting each other. Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass die zwei axialen Umformrollen (41, 42) während des Stauchens radial verstellt werden.Method according to one of claims 1 to 3,
characterized,
that the two axial forming rollers (41, 42) are radially adjusted during the upsetting. Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass in einer Endphase des radialen Stauchens die axialen Umformrollen (41, 42) von dem verdickten Bereich beabstandet werden und der verdickte Bereich durch die mindestens eine Stauchrolle (50) zu der Randkontur (3) endgeformt wird.Method according to one of claims 1 to 4,
characterized,
that in an end phase of the radial compression, the axial forming rollers (41, 42) are spaced from the thickened region and the thickened region is finally shaped by the at least one compression roller (50) to the edge contour (3). Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
dass in derselben Einspannung der Ronde (1) ein Außenrand mit der angeformten verdickten Randkontur (3) auf ein Drückfutter (12) umgelegt und ein Umfangswandbereich (8) geformt wird.Method according to one of claims 1 to 5,
characterized,
that in the same clamping of the blank (1) an outer edge with the molded thickened edge contour (3) on a spinning chuck (12) folded and a peripheral wall portion (8) is formed. Verfahren nach Anspruch 6,
dadurch gekennzeichnet,
dass das Umlegen mittels der mindestens einen Stauchrolle (50) durchgeführt wird.Method according to claim 6,
characterized,
that the transfer is carried out by means of the at least one compression roller (50). Verfahren nach Anspruch 6 oder 7,
dadurch gekennzeichnet,
dass beim Umlegen die verdickte Randkontur (3) in eine Außenprofilierung (14), insbesondere ein Keilnutprofil oder eine Verzahnung eingeformt wird, welche an dem Drückfutter (12) ausgebildet ist.Method according to claim 6 or 7,
characterized,
that during thickening the thickened edge contour (3) is formed in an outer profile (14), in particular a keyway profile or a toothing, which is formed on the spinning chuck (12). Stauchrolle, insbesondere zum Durchführen eines Verfahrens nach einem der Ansprüche 1 bis 8,
mit einem Rollengrundkörper (52) mit einem Stauchbereich (54), welcher eine umlaufende Formnut (56) zum Stauchen und Formen eines Randbereiches einer Ronde (1) aufweist,
dadurch gekennzeichnet,
dass zusätzlich mindestens ein radial vorspringender Drückbereich (60) vorgesehen ist, welcher zum Drücken und/oder Drückwalzen ausgebildet ist.Upset roller, in particular for carrying out a method according to one of claims 1 to 8,
with a roller main body (52) having an upsetting region (54), which has a circumferential shaping groove (56) for compressing and forming a peripheral region of a circular blank (1),
characterized,
in that at least one radially projecting pressing region (60) is additionally provided, which is designed for pressing and / or pressure-rolling. Stauchrolle nach Anspruch 9,
dadurch gekennzeichnet,
dass der Stauchbereich (54) in einem axialen Mittenabschnitt und der Drückbereich (60) in einem seitlichen Randabschnitt des Rollengrundkörpers (52) angeordnet sind.Upset roller according to claim 9,
characterized,
in that the swage region (54) is arranged in an axial center section and the pressing region (60) is arranged in a lateral edge section of the roller main body (52). Stauchrolle nach Anspruch 9 oder 10,
dadurch gekennzeichnet,
dass der Drückbereich (60) im Querschnitt eine radial vorspringende Nase (62) mit einem Drückradius und einer Einlauf- und/oder Auslaufschräge (64, 66) aufweist.Upset roller according to claim 9 or 10,
characterized,
in that the pressing region (60) has a radially projecting nose (62) with a pressing radius and an inlet and / or outlet slope (64, 66) in cross-section. Vorrichtung zum Herstellen eines Umformteils aus einer Ronde (1), insbesondere nach einem Verfahren nach einem der Ansprüche 1 bis 8,
mit einer Antriebseinrichtung zum rotierenden Antreiben einer Ronde (1) und mit mindestens einer Stauchrolle (50), welche an die Ronde (1) zum Stauchen des Außenrandes der Ronde (1) radial zustellbar ist,
dadurch gekennzeichnet,
dass eine Stauchrolle (50) nach einem der Ansprüche 9 bis 11 vorgesehen ist.Device for producing a formed part from a blank (1), in particular according to a method according to one of claims 1 to 8,
with a drive device for rotationally driving a blank (1) and with at least one compression roller (50) which can be radially fed to the blank (1) for compressing the outer edge of the blank (1),
characterized,
in that a compression roller (50) according to one of claims 9 to 11 is provided. Vorrichtung nach Anspruch 12,
dadurch gekennzeichnet,
dass zum Einspannen der Ronde (1) ein Drückfutter (12) vorgesehen ist, an welchem eine Außenprofilierung (14) ausgebildet ist, auf welche ein Randabschnitt der Ronde (1) zum Bilden eines Umformteiles (9) mit Innenprofilierung umlegbar ist.Device according to claim 12,
characterized,
in that for clamping the round blank (1) a spinning chuck (12) is provided, on which an external profiling (14) is formed, on which an edge section of the blank (1) can be transferred to form a forming part (9) with internal profiling.
EP16170138.8A 2016-05-18 2016-05-18 Method and device for manufacturing a formed element Active EP3246104B1 (en)

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Application Number Priority Date Filing Date Title
EP16170138.8A EP3246104B1 (en) 2016-05-18 2016-05-18 Method and device for manufacturing a formed element
PCT/EP2017/057188 WO2017198382A1 (en) 2016-05-18 2017-03-27 Method and device for producing a shaped part
CN201780037896.2A CN109475913B (en) 2016-05-18 2017-03-27 Method and device for producing a deformable part
US16/301,683 US20190291159A1 (en) 2016-05-18 2017-03-27 Method and device for producing a formed part
JP2018559951A JP6768837B2 (en) 2016-05-18 2017-03-27 Methods and equipment for manufacturing molded parts

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EP3246104B1 EP3246104B1 (en) 2019-11-06

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CN110125251B (en) * 2019-05-16 2023-11-14 中信戴卡股份有限公司 Wheel spinning mould and shedder
CN112916726A (en) * 2020-12-28 2021-06-08 无锡仓佑汽车配件有限公司 Preparation process of internal and external splines of clutch hub of automatic transmission

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US5878493A (en) 1996-08-28 1999-03-09 Tesma International Inc. Method of forming toothed wheels
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DE10211135B4 (en) 2002-03-14 2008-06-26 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co Kg Method and device for producing a shaped body

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Publication number Priority date Publication date Assignee Title
EP0397901A1 (en) * 1989-05-17 1990-11-22 Leifeld GmbH & Co. Method of manufacturing a belt pulley
DE4314558A1 (en) * 1993-05-04 1994-11-17 Leifeld Gmbh & Co Process for the non-cutting production of an outer profile on a hollow-cylindrical body and associated apparatus
US5515709A (en) * 1994-03-31 1996-05-14 Motor Wheel Corp Apparatus for making a full face wheel
WO1996022847A1 (en) 1995-01-27 1996-08-01 Kabushiki Kaisha Kanemitsu Metal sheet having annular peripheral wall and method of thickening annular peripheral wall
US5732581A (en) * 1995-01-27 1998-03-31 Kabushiki Kaisha Kanemitsu Method for producing a sheet metal poly-V groove pulley and a sheet metal poly-V groove pulley
EP0764482A1 (en) * 1995-08-31 1997-03-26 Fujikiko Kabushiki Kaisha Method for increasing thickness of outer peripheral portion of disc, and method for molding disc member having transmitting portion in outer periphery thereof
DE19602298A1 (en) * 1996-01-23 1996-08-14 Leifeld Gmbh & Co Method of mfr. of a vehicle wheel from circular blank by radial upsetting
DE19602298C2 (en) 1996-01-23 1999-11-11 Leifeld Gmbh & Co Process for producing a rotationally symmetrical part
DE19635152A1 (en) * 1996-08-14 1998-03-12 Wf Maschinenbau Blechformtech Method and device for producing an externally toothed gear part
US5878493A (en) 1996-08-28 1999-03-09 Tesma International Inc. Method of forming toothed wheels
US6196039B1 (en) * 1999-03-25 2001-03-06 Anvil International, Inc. Groove rolling of piping elements
DE10211135B4 (en) 2002-03-14 2008-06-26 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co Kg Method and device for producing a shaped body

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EP3246104B1 (en) 2019-11-06
US20190291159A1 (en) 2019-09-26
CN109475913A (en) 2019-03-15
JP6768837B2 (en) 2020-10-14
CN109475913B (en) 2020-08-07
JP2019514698A (en) 2019-06-06
WO2017198382A1 (en) 2017-11-23

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