Method and device for producing a formed part

Abstract

The invention relates to a method and a device for producing a shaped part from a circular blank, wherein the circular blank is rotated and at least one compression roller is radially applied to an outer edge of the circular blank, said compression roller having a circumferential shaping groove. The outer edge of the circular blank is compressed to form a thickened region, which is shaped according to the shaping groove of the compression roller to form a thickened edge contour. With the radial compression, at least two axial shaped rollers are applied to an outer region of the circular blank, which cooperate when shaping the edge contour. According to the invention, at least in a starting phase of the radial compression, the two axial shaped rollers are applied to the thickened region at an axial shaping distance to one another, which distance is smaller than an axial width of the shaping groove of the compression roller, wherein the thickened region is axially compressed back.

1 . 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 opposite edge contour, are applied or fed laterally to an outer region of the circular blank,   
       wherein
 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. 
 
     
     
         2 . The method according to  claim 1 ,
 wherein   the at least two axial forming rollers are applied or fed directly behind and/or before the upsetting roller.   
     
     
         3 . The method according to  claim 1 ,
 wherein   the two axial forming rollers are adjusted axially to each other during upsetting.   
     
     
         4 . The method according to  claim 1 ,
 wherein   the two axial forming rollers are adjusted radially during upsetting.   
     
     
         5 . The method according to  claim 1 ,
 wherein   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.   
     
     
         6 . The method according to  claim 1 ,
 wherein   in the same clamping of the circular blank an outer edge with the formed-on thickened edge contour is folded over onto a spinning chuck and a circumferential wall region is formed.   
     
     
         7 . The method according to  claim 6 ,
 wherein   the folding-over is carried out by means of the at least one upsetting roller.   
     
     
         8 . The method according to  claim 6 ,
 wherein   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.   
     
     
         9 . A device for producing a formed part from a circular blank pursuant to the method according to  claim 1 ,
 with a drive means for driving a circular blank in a rotating manner and with at least one upsetting roller having a forming groove, which can be fed radially to the circular blank in order to upset the outer edge of the circular blank to a thickened region, and with at least two axial forming rollers which can be fed laterally to the circular blank   wherein   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, wherein the external profiling is a splined groove profile or a toothing,   in that during radial feeding and upsetting by means of the at least one upsetting roller the two axial forming rollers are fed to the thickened region of the circular blank with an axial forming distance to each other which is smaller than an axial width of the forming groove of the upsetting roller, and in that on the upsetting roller a spinning region with a radially protruding nose having a spinning radius and a run-in slope and a run-out slope is provided for folding over the radially directed circular blank section of the circular blank through an axial movement.   
     
     
         10 . (canceled)