US20190291159A1 - Method and device for producing a formed part - Google Patents
Method and device for producing a formed part Download PDFInfo
- Publication number
- US20190291159A1 US20190291159A1 US16/301,683 US201716301683A US2019291159A1 US 20190291159 A1 US20190291159 A1 US 20190291159A1 US 201716301683 A US201716301683 A US 201716301683A US 2019291159 A1 US2019291159 A1 US 2019291159A1
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- United States
- Prior art keywords
- circular blank
- upsetting
- axial
- roller
- forming
- 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.)
- Abandoned
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Classifications
-
- 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
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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
- 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 formed part from a circular blank, in which the circular blank is set into rotation and at least one upsetting roller, which has a circumferential forming groove, is fed radially to an outer edge of the circular blank, the outer edge of the circular blank is upset to a thickened region which is formed to a thickened edge contour according to the forming groove of the upsetting roller, and during radial upsetting at least two axial forming rollers, which cooperate during the forming of the edge contour, are applied or fed laterally to an outer region of the circular blank, in accordance with the preamble of claim 1 .
- the invention further relates to a device for producing a formed part from a circular blank with a drive means for driving a circular blank in a rotating manner and with at least one upsetting roller which can be fed radially to the circular blank in order to upset the outer edge of the circular blank, in accordance with the preamble of claim 9 .
- a circular blank i.e. a rotationally symmetrical workpiece of sheet metal
- a material accumulation e.g. a toothing, for creating a gear wheel or a starter rim gear, can then be formed in a chipless manner or cut in a chip-removing process.
- the lateral supporting rollers are used as a kind of lateral counter-bearing which contributes to the radial forming of the edge bead of the circular blank.
- the forming rollers can also form a radially internal lower edge of the edge contour.
- the invention is based on the object to provide a method and a device, with which a formed part of a circular blank can be processed in a particularly efficient manner whilst the edge of the circular blank is being thickened.
- the method according to the invention is characterized in that at least in a starting phase of radial upsetting the two axial forming rollers are fed to the thickened region with an axial forming distance to each other which is smaller than an axial width of the forming groove of the upsetting roller, wherein the thickened region is back-upset axially.
- a basic idea of the invention resides in the fact that at least in a starting phase of the radial upsetting of a circular blank the at least one upsetting roller is relieved in that the lateral flanks of the thickened region are directly acted upon by two axial forming rollers.
- the axial distance of the two opposite forming rollers is set such that at least in some regions it is smaller than an axial width of the forming groove of the upsetting roller.
- a particularly good reduction of friction can be accomplished in that the at least two axial forming rollers are applied or fed directly behind and/or before the upsetting roller.
- the forming rollers arranged in pairs can be arranged just a few cm behind or before the upsetting roller.
- the two axial forming rollers are adjusted axially to each other during upsetting.
- the axial forming rollers each have an axis of rotation that is directed radially to the axis of rotation of the circular blank.
- the axial distance of the two axial forming rollers to each other is a length that is preferably parallel to the axis of rotation of the circular blank.
- the axes of rotation of the axial forming rollers can also be angled with respect to the radial direction, thereby also allowing a back-upsetting on inclined flanks of the thickened edge region of the circular blank.
- an axial distance of the axial forming rollers to each other can be enlarged so that a finish-forming is substantially effected by the forming groove of the upsetting roller.
- the forming rollers can have radially protruding shoulders which serve as an abutment or stop ridge to form e.g. a radial inner side or underside of the edge contour.
- the two axial forming rollers are adjusted radially during upsetting. Through this, in particular an adaptation to a gradual reduction of the circular blank diameter during upsetting can be effected.
- the axial forming rollers are spaced from the thickened region and the thickened region is finish-formed to the edge contour by the at least one upsetting roller.
- the forming groove in the upsetting roller is designed according to the edge contour of the circular blank that is to be created.
- a particularly efficient method variant resides in the fact that in the same clamping of the circular blank an outer edge with the formed-on thickened edge contour is folded over onto a spinning tool and a circumferential wall region is formed.
- the circular blank is clamped between the spinning tool and a counter-holder.
- an edge thickening is carried out, and subsequently, in the same clamping, the thickened region of the circular blank is folded over onto the spinning chuck.
- the folding-over is particularly advantageous for the folding-over to be carried out by means of at least one upsetting roller.
- the upsetting roller has a multiple function. Due to this multifunctional upsetting roller the number of spinning rollers required and tools can be reduced.
- the thickened edge contour is formed into an external profiling, in particular a splined groove profile or a toothing, which is designed on the spinning chuck.
- an external profiling in particular a splined groove profile or a toothing, which is designed on the spinning chuck.
- On the circumferential wall a corresponding internal profile is designed.
- other profiles and contours can also be formed.
- a possible upsetting roller is characterized in that a radially protruding spinning region is additionally provided that is designed for spinning and/or for flow-forming.
- the upsetting roller can thus assume a double function. It serves for the radial upsetting with a radial application of force and for folding over the radial edge region of the circular blank axially onto the spinning chuck, in which case substantially axial forces are being applied.
- the upsetting roller is designed with a rotary bearing which absorbs both radial and axial forces.
- a preferred embodiment variant of the upsetting roller resides in the fact that the upsetting region is arranged in an axial center section and the spinning region in a lateral edge section of the roller body.
- the spinning region is radially protruding and has a spinning radius.
- the spinning region has a radially protruding nose with a spinning radius and a run-in and/or run-out slope.
- the run-in slope can in particular be designed such that a folding-over of the radially directed circular blank section is effected through an axial movement of the upsetting roller.
- the device according to the invention for producing a formed part from a circular blank is characterized in that an upsetting roller is provided.
- a spinning chuck is provided, on which an external profiling is designed, onto which an edge section of the circular blank can be folded over to create a formed part with internal profiling.
- the spinning chuck is part of a clamping means, with the circular blank being clamped axially between spinning chuck and a counter-holder. Due to the previous thickening a sufficient amount of material is available to reliably fill the external profiling.
- FIG. 1 a partial cross-sectional view of a device according to the invention at the beginning of a radial upsetting of a circular blank;
- FIG. 2 an illustration according to FIG. 1 at the end of the radial upsetting of the circular blank
- FIG. 3 a partial cross-sectional view of the circular blank before upsetting
- FIG. 4 a partial cross-sectional view of the circular blank after upsetting
- FIG. 5 a schematic side view of the device according to the invention corresponding to FIG. 2 ;
- FIG. 6 a partial cross-sectional view of the device according to the invention during folding-over of a circular blank edge onto a profiled spinning chuck
- FIG. 7 a partial cross-sectional view corresponding to FIG. 6 during finish-forming of a formed part.
- a rotationally symmetrical circular blank 1 of sheet material is clamped axially by being centered between a spinning chuck 12 and a counter-holder 20 .
- the clamped circular blank 1 is set into rotation.
- an upsetting roller 50 with a roller base body 52 is fed to an outer edge of the circular blank 1 .
- an upsetting region 54 with a circumferential forming groove 56 is designed.
- the outer edge of the circular blank 1 is received in the forming groove 56 which predetermines an external contour of the circular blank region to be upset.
- the roller base body 52 is mounted on an upsetting roller shaft 74 which is rotatably supported via a radial bearing 76 and an axial bearing arrangement 78 in a holder 80 .
- the support by means of radial bearing 76 and axial bearing 78 renders it possible to absorb forming forces both in the radial direction and in the axial direction.
- a first axial forming roller 41 and a second axial forming roller 42 are provided which are applied on the opposite side axially to the circular blank 1 to be formed.
- the first axial forming roller 41 and the second axial forming roller 42 have an axial forming distance that is smaller than an axial width of the forming groove 56 of the upsetting roller 50 .
- the two forming rollers 41 , 42 are each mounted on a roller shaft 43 which are rotatably supported in a first roller support 45 and a second roller support 46 respectively.
- the first roller support 45 and the second roller support 46 are supported in an adjustable manner on a guide carrier 48 . Adjustment can be carried out via a non-depicted adjustment means, more particularly a positioning cylinder or a spindle drive.
- the outer edge of the circular blank 1 is upset.
- the upset material initially accumulates on a groove base 59 and then on flanks 58 of the forming groove 56 .
- the flanks 58 of the forming roller 50 and the accumulated material of the circular blank 1 have a different direction of movement.
- the two axial forming rollers 41 , 42 are fed axially to the thickening circular blank edge, whereby a certain axial back-upsetting, e.g. amounting to approximately 10% of the wall thickness, of the thickened region of the circular blank 1 takes place.
- a frictional contact is at least reduced when the thickened region re-renters the upsetting roller 50 .
- frictional wear, a structure-damaging frictional heat-up and a load of the upsetting roller 50 are reduced considerably.
- the axial forming rollers 41 , 42 can be spaced further at least to an axial distance that corresponds to the width of the forming groove 56 so that the thickened edge contour 3 on the circular blank 1 is principally formed by the contour of the forming groove 56 of the upsetting roller 50 .
- FIGS. 3 and 4 illustrate that during radial upsetting an external diameter of the circular blank 1 is reduced, and at the same time a thickened edge contour 3 is created along the outer edge.
- FIG. 5 A final phase of forming the thickened edge contour 3 with the upsetting roller 50 and the two axial forming rollers 41 , 42 is shown schematically in FIG. 5 . It can also be taken from FIG. 5 that on an outer side of the spinning chuck 12 an external profiling 14 is provided. In the illustrated embodiment the external profiling 14 is realized as an axial splined groove profile.
- the upsetting roller 50 is provided with an edge-sided spinning region 60 in addition to the central upsetting region 54 with the forming groove 56 .
- a radially protruding nose 62 with a spinning radius is provided which merges on the one hand into a run-in slope 64 and on the other hand into a run-out slope 66 .
- the upsetting roller 50 according to the invention can also have an opposite frontal spinning region 70 , with which a front side of the workpiece to be formed can be processed. Alternatively or additionally, for folding-over a further flow-forming roller 30 can be fed to the circumference of the workpiece.
- a frontal profile 16 can finally be formed.
- the upsetting roller 50 can be fed with a frontal spinning region 70 to a front side of the formed part 9 .
- the upsetting roller 50 depicted schematically only, has a protruding spinning ridge of approximately rectangular shape.
- the formed part 9 is ejected and removed from the spinning chuck 12 by means of a displaceable, annular ejecting means 90 .
- the formed part 9 can be a clutch plate carrier for automatic transmission. Subsequently, for the forming of a further workpiece a new circular blank 1 can be fed 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
Description
- The invention relates to a method for producing a formed part from a circular blank, in which the circular blank is set into rotation and at least one upsetting roller, which has a circumferential forming groove, is fed radially to an outer edge of the circular blank, the outer edge of the circular blank is upset to a thickened region which is formed to a thickened edge contour according to the forming groove of the upsetting roller, and during radial upsetting at least two axial forming rollers, which cooperate during the forming of the edge contour, are applied or fed laterally to an outer region of the circular blank, in accordance with the preamble of
claim 1. - The invention further relates to a device for producing a formed part from a circular blank with a drive means for driving a circular blank in a rotating manner and with at least one upsetting roller which can be fed radially to the circular blank in order to upset the outer edge of the circular blank, in accordance with the preamble of
claim 9. - It is known that a circular blank, i.e. a rotationally symmetrical workpiece of sheet metal, is upset by radially feeding an upsetting roller with a circumferential upsetting or forming groove in order to create a material accumulation. Into the material accumulation e.g. a toothing, for creating a gear wheel or a starter rim gear, can then be formed in a chipless manner or cut in a chip-removing process.
- Due to the radial feeding of the upsetting roller considerable radial forces are exerted onto the circular blank. To prevent the edge of the circular blank from bending during upsetting it is known from DE 102 11 135 B4 that the circular blank is supported directly below the upsetting region by lateral supporting rollers.
- Furthermore, from DE 196 02 298 C2 it is known that the lateral supporting rollers are used as a kind of lateral counter-bearing which contributes to the radial forming of the edge bead of the circular blank. In this, the forming rollers can also form a radially internal lower edge of the edge contour.
- During the radial upsetting of a circular blank edge by means of an upsetting roller with circumferential forming groove considerable loads occur on the upsetting roller. As soon as the groove base of the forming groove makes contact with the outer edge of the circular blank, the radial feeding of the upsetting roller initially causes material of the circular blank to be displaced axially towards both sides. With an increasing radial feeding, the displaced material is then led along the flanks of the upsetting roller in the radial inward direction and thickened further, whereby the diameter of the circular blank is gradually reduced. In doing so, considerable friction occurs along the flanks of the forming groove due to the different movement between circular blank and upsetting roller in the circumferential direction. This can result in a correspondingly strong frictional heat-up which may affect the structure of the workpiece.
- To reduce loads it is known from WO 96/22847 A1 or from U.S. Pat. No. 5,878,493 A that upsetting is carried out step by step with several different upsetting rollers that have different flank angles in the forming grooves. The use of a plurality of different upsetting rollers is costly and time-consuming.
- Similar methods for upsetting a circular blank of sheet metal using an upsetting roller can be taken from DE 196 35 152 A1 and from EP 0 764 482 A1.
- The invention is based on the object to provide a method and a device, with which a formed part of a circular blank can be processed in a particularly efficient manner whilst the edge of the circular blank is being thickened.
- The object is achieved by a method having the feature of
claim 1 and by a device having the features ofclaim 9. Preferred embodiments of the invention are stated in the respective dependent claims. - The method according to the invention is characterized in that at least in a starting phase of radial upsetting the two axial forming rollers are fed to the thickened region with an axial forming distance to each other which is smaller than an axial width of the forming groove of the upsetting roller, wherein the thickened region is back-upset axially.
- A basic idea of the invention resides in the fact that at least in a starting phase of the radial upsetting of a circular blank the at least one upsetting roller is relieved in that the lateral flanks of the thickened region are directly acted upon by two axial forming rollers. The axial distance of the two opposite forming rollers is set such that at least in some regions it is smaller than an axial width of the forming groove of the upsetting roller. Thus, through the two axial forming rollers the thickened region, after having left the forming groove of the upsetting roller, is back-upset axially to a thickness that is smaller than a width of the forming groove. Due to this back-upsetting of the thickened region in the axial direction the contact surface and thus the friction between the flanks of the forming groove and the flanks of the thickened region is reduced when the back-upset region re-enters the upsetting roller. Accordingly, this reduces the load of the upsetting roller, frictional wear as well as the frictional heat-up in the forming zone. As a result, an altogether more gentle forming can be achieved both for the structure of the workpiece and for the upsetting roller itself.
- According to a further development of the invention a particularly good reduction of friction can be accomplished in that the at least two axial forming rollers are applied or fed directly behind and/or before the upsetting roller. The forming rollers arranged in pairs can be arranged just a few cm behind or before the upsetting roller.
- Another advantageous embodiment of the invention resides in the fact that the two axial forming rollers are adjusted axially to each other during upsetting. The axial forming rollers each have an axis of rotation that is directed radially to the axis of rotation of the circular blank. The axial distance of the two axial forming rollers to each other is a length that is preferably parallel to the axis of rotation of the circular blank. The axes of rotation of the axial forming rollers can also be angled with respect to the radial direction, thereby also allowing a back-upsetting on inclined flanks of the thickened edge region of the circular blank. Through axial adjustment of the forming rollers to each other the contact surface between circular blank and forming rollers can be set, in which case the friction changes accordingly. Especially at the end of radial upsetting an axial distance of the axial forming rollers to each other can be enlarged so that a finish-forming is substantially effected by the forming groove of the upsetting roller. The forming rollers can have radially protruding shoulders which serve as an abutment or stop ridge to form e.g. a radial inner side or underside of the edge contour.
- Moreover, according to an embodiment variant of the method pursuant to the invention it is advantageous for the two axial forming rollers to be adjusted radially during upsetting. Through this, in particular an adaptation to a gradual reduction of the circular blank diameter during upsetting can be effected.
- For a precise forming of the thickened edge contour it is advantageous in accordance with an embodiment variant of the invention that in a final phase of radial upsetting the axial forming rollers are spaced from the thickened region and the thickened region is finish-formed to the edge contour by the at least one upsetting roller. For this, the forming groove in the upsetting roller is designed according to the edge contour of the circular blank that is to be created.
- According to a further development of the invention a particularly efficient method variant resides in the fact that in the same clamping of the circular blank an outer edge with the formed-on thickened edge contour is folded over onto a spinning tool and a circumferential wall region is formed. The circular blank is clamped between the spinning tool and a counter-holder. In a first step an edge thickening is carried out, and subsequently, in the same clamping, the thickened region of the circular blank is folded over onto the spinning chuck. Through this, a cylindrical or cup-shaped workpiece can be produced in a chipless manner with an internal contour that preferably corresponds to the external contour of the spinning tool.
- In this connection, it is particularly advantageous for the folding-over to be carried out by means of at least one upsetting roller. The upsetting roller has a multiple function. Due to this multifunctional upsetting roller the number of spinning rollers required and tools can be reduced.
- For an efficient forming in accordance with a method variant pursuant to the invention it is advantageous that during folding-over the thickened edge contour is formed into an external profiling, in particular a splined groove profile or a toothing, which is designed on the spinning chuck. On the circumferential wall a corresponding internal profile is designed. Basically, other profiles and contours can also be formed.
- A possible upsetting roller is characterized in that a radially protruding spinning region is additionally provided that is designed for spinning and/or for flow-forming.
- The upsetting roller can thus assume a double function. It serves for the radial upsetting with a radial application of force and for folding over the radial edge region of the circular blank axially onto the spinning chuck, in which case substantially axial forces are being applied. Hence, the upsetting roller is designed with a rotary bearing which absorbs both radial and axial forces.
- A preferred embodiment variant of the upsetting roller resides in the fact that the upsetting region is arranged in an axial center section and the spinning region in a lateral edge section of the roller body. The spinning region is radially protruding and has a spinning radius.
- According to an embodiment variant it is especially advantageous that in cross-section the spinning region has a radially protruding nose with a spinning radius and a run-in and/or run-out slope. The run-in slope can in particular be designed such that a folding-over of the radially directed circular blank section is effected through an axial movement of the upsetting roller.
- The device according to the invention for producing a formed part from a circular blank is characterized in that an upsetting roller is provided.
- According to an embodiment of the invention it is particularly preferred that for the clamping of the circular blank a spinning chuck is provided, on which an external profiling is designed, onto which an edge section of the circular blank can be folded over to create a formed part with internal profiling. The spinning chuck is part of a clamping means, with the circular blank being clamped axially between spinning chuck and a counter-holder. Due to the previous thickening a sufficient amount of material is available to reliably fill the external profiling.
- The invention is described further hereinafter by way of preferred embodiments illustrated schematically in the accompanying drawings, wherein show:
-
FIG. 1 a partial cross-sectional view of a device according to the invention at the beginning of a radial upsetting of a circular blank; -
FIG. 2 an illustration according toFIG. 1 at the end of the radial upsetting of the circular blank; -
FIG. 3 a partial cross-sectional view of the circular blank before upsetting; -
FIG. 4 a partial cross-sectional view of the circular blank after upsetting; -
FIG. 5 a schematic side view of the device according to the invention corresponding toFIG. 2 ; -
FIG. 6 a partial cross-sectional view of the device according to the invention during folding-over of a circular blank edge onto a profiled spinning chuck; and -
FIG. 7 a partial cross-sectional view corresponding toFIG. 6 during finish-forming of a formed part. - According to
FIG. 1 , in adevice 10 pursuant to the invention for producing a formed part a rotationally symmetrical circular blank 1 of sheet material is clamped axially by being centered between a spinningchuck 12 and a counter-holder 20. By way of a non-depicted rotary drive the clamped circular blank 1 is set into rotation. - From the radial outward direction an upsetting
roller 50 with aroller base body 52 is fed to an outer edge of thecircular blank 1. On theroller base body 52 in a central section thereof anupsetting region 54 with a circumferential forminggroove 56 is designed. The outer edge of the circular blank 1 is received in the forminggroove 56 which predetermines an external contour of the circular blank region to be upset. - The
roller base body 52 is mounted on an upsettingroller shaft 74 which is rotatably supported via aradial bearing 76 and anaxial bearing arrangement 78 in aholder 80. The support by means ofradial bearing 76 andaxial bearing 78 renders it possible to absorb forming forces both in the radial direction and in the axial direction. - Radially opposite the upsetting roller 50 a first axial forming
roller 41 and a second axial formingroller 42 are provided which are applied on the opposite side axially to the circular blank 1 to be formed. In the forming region the first axial formingroller 41 and the second axial formingroller 42 have an axial forming distance that is smaller than an axial width of the forminggroove 56 of the upsettingroller 50. The two formingrollers roller shaft 43 which are rotatably supported in afirst roller support 45 and asecond roller support 46 respectively. Thefirst roller support 45 and thesecond roller support 46 are supported in an adjustable manner on aguide carrier 48. Adjustment can be carried out via a non-depicted adjustment means, more particularly a positioning cylinder or a spindle drive. - By radially feeding the upsetting
roller 50 to the rotating circular blank 1 the outer edge of the circular blank 1 is upset. In doing so, the upset material initially accumulates on agroove base 59 and then onflanks 58 of the forminggroove 56. In contrast to thegroove base 59 theflanks 58 of the formingroller 50 and the accumulated material of the circular blank 1 have a different direction of movement. To reduce friction the two axial formingrollers roller 50. As a result, frictional wear, a structure-damaging frictional heat-up and a load of the upsettingroller 50 are reduced considerably. - At the end of forming the thickened
edge contour 3 of the circular blank 1 the axial formingrollers groove 56 so that the thickenededge contour 3 on the circular blank 1 is principally formed by the contour of the forminggroove 56 of the upsettingroller 50. -
FIGS. 3 and 4 illustrate that during radial upsetting an external diameter of the circular blank 1 is reduced, and at the same time a thickenededge contour 3 is created along the outer edge. - A final phase of forming the thickened
edge contour 3 with the upsettingroller 50 and the two axial formingrollers FIG. 5 . It can also be taken fromFIG. 5 that on an outer side of the spinningchuck 12 anexternal profiling 14 is provided. In the illustrated embodiment theexternal profiling 14 is realized as an axial splined groove profile. - By means of one or several upsetting
rollers 50 the outer edge of the circular blank 1 with the thickenededge contour 3 can be folded over axially onto theexternal profiling 14 of the spinningchuck 12, as illustrated schematically inFIG. 6 . For this purpose, the upsettingroller 50 according to the invention is provided with an edge-sided spinning region 60 in addition to the centralupsetting region 54 with the forminggroove 56. In the spinning region 60 aradially protruding nose 62 with a spinning radius is provided which merges on the one hand into a run-in slope 64 and on the other hand into a run-out slope 66. Furthermore, the upsettingroller 50 according to the invention can also have an oppositefrontal spinning region 70, with which a front side of the workpiece to be formed can be processed. Alternatively or additionally, for folding-over a further flow-formingroller 30 can be fed to the circumference of the workpiece. - In the depicted embodiment according to the illustration of
FIG. 7 , for the finish-forming of the formed part 9 afrontal profile 16 can finally be formed. To this end, the upsettingroller 50 can be fed with afrontal spinning region 70 to a front side of the formedpart 9. In thefrontal spinning region 70 the upsettingroller 50, depicted schematically only, has a protruding spinning ridge of approximately rectangular shape. - On completion of the final forming step the formed
part 9 is ejected and removed from the spinningchuck 12 by means of a displaceable, annular ejecting means 90. The formedpart 9 can be a clutch plate carrier for automatic transmission. Subsequently, for the forming of a further workpiece a new circular blank 1 can be fed to thedevice 10 and clamped between the spinningchuck 12 and the counter-holder 20.
Claims (10)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP16170138.8A EP3246104B1 (en) | 2016-05-18 | 2016-05-18 | Method and device for manufacturing a formed element |
EP16170138.8 | 2016-05-18 | ||
PCT/EP2017/057188 WO2017198382A1 (en) | 2016-05-18 | 2017-03-27 | Method and device for producing a shaped part |
Publications (1)
Publication Number | Publication Date |
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US20190291159A1 true US20190291159A1 (en) | 2019-09-26 |
Family
ID=56117478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/301,683 Abandoned US20190291159A1 (en) | 2016-05-18 | 2017-03-27 | Method and device for producing a formed part |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190291159A1 (en) |
EP (1) | EP3246104B1 (en) |
JP (1) | JP6768837B2 (en) |
CN (1) | CN109475913B (en) |
WO (1) | WO2017198382A1 (en) |
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US11491527B2 (en) * | 2019-05-16 | 2022-11-08 | Citic Dicastal Co., Ltd. | Wheel spinning die and die releasing device |
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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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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 |
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KR100215556B1 (en) * | 1995-01-27 | 1999-08-16 | 가부시끼가이샤가네미쯔 | Method for producing a sheet metal poly-v groove pulley and a sheet metal poly-v groove pulley |
WO1996022847A1 (en) | 1995-01-27 | 1996-08-01 | Kabushiki Kaisha Kanemitsu | Metal sheet having annular peripheral wall and method of thickening annular peripheral wall |
JPH0966330A (en) * | 1995-08-31 | 1997-03-11 | Fuji Kiko Co Ltd | Method for thickening outer part of disk and method for forming disk member with drive part on outer periphery |
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 |
JP3840264B2 (en) * | 1996-08-14 | 2006-11-01 | ヴェーエフ・マシーネンバウ ウント ブレヒフォルムテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | Method and apparatus for manufacturing external gear parts of transmission |
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 |
CN100493757C (en) * | 2007-10-30 | 2009-06-03 | 华南理工大学 | Belt wheel jolleying method and equipment |
CN104540611B (en) * | 2012-07-05 | 2017-07-14 | 麦格纳动力系美国有限公司 | Helical spline shapes |
CN103464559A (en) * | 2013-09-16 | 2013-12-25 | 薛克敏 | Method for forming plate parts with thin bottoms and thick outer edges |
-
2016
- 2016-05-18 EP EP16170138.8A patent/EP3246104B1/en active Active
-
2017
- 2017-03-27 JP JP2018559951A patent/JP6768837B2/en active Active
- 2017-03-27 CN CN201780037896.2A patent/CN109475913B/en active Active
- 2017-03-27 US US16/301,683 patent/US20190291159A1/en not_active Abandoned
- 2017-03-27 WO PCT/EP2017/057188 patent/WO2017198382A1/en active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11491527B2 (en) * | 2019-05-16 | 2022-11-08 | Citic Dicastal Co., Ltd. | Wheel spinning die and die releasing device |
Also Published As
Publication number | Publication date |
---|---|
CN109475913A (en) | 2019-03-15 |
WO2017198382A1 (en) | 2017-11-23 |
EP3246104A1 (en) | 2017-11-22 |
JP6768837B2 (en) | 2020-10-14 |
EP3246104B1 (en) | 2019-11-06 |
CN109475913B (en) | 2020-08-07 |
JP2019514698A (en) | 2019-06-06 |
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