公开(公告)号：US5379622A

公开(公告)日：1995-01-10

申请号：US120466

申请日：1993-09-14

申请人： Mitsuo Saito ,  Yoshihiro Umebayashi ,  Shigetake Aoyagi ,  Shuzo Isozumi ,  Noriyuki Tanaka ,  Junichi Kasa

发明人： Mitsuo Saito ,  Yoshihiro Umebayashi ,  Shigetake Aoyagi ,  Shuzo Isozumi ,  Noriyuki Tanaka ,  Junichi Kasa

IPC分类号： B21H1/00 ,  B21H3/02 ,  B21H5/00 ,  B21H5/02 ,  B21H3/00

CPC分类号： B21H5/027 ,  B21H3/022

摘要： In forming helical splines with stoppers on a rotary shaft, its large-diameter portion is held between a pair of rolling tools, each of which comprises: a helical teeth forming die having inclined teeth; an aligning teeth die having aligning teeth which are aligned with every other inclined tooth when combined with the helical teeth forming die; and a finishing teeth die having finishing teeth which are equal in pitch to the aligning teeth. Under this condition, the shaft is rolled under pressure by moving the rolling tools, to form helical grooves, and communication grooves communicated with every other helical grooves on the large-diameter portion, leaving stoppers between the communication grooves. Hence, the helical splines are formed by one rolling operation, with burrs formed between the spline grooves and the communication grooves being automatically removed.

摘要翻译： 在旋转轴上形成具有止动件的螺旋花键时，其大直径部分保持在一对滚动工具之间，每个滚动工具包括：具有倾斜齿的螺旋齿形成模具; 具有对准齿的对准齿模具，当与螺旋齿成形模具组合时，其具有与每隔一个倾斜齿对准的对准齿; 以及具有与对准齿相等的精加工齿的精整齿模具。 在这种条件下，通过移动轧制工具在轴上轧制轴，形成螺旋槽，并且连通槽与大直径部分上的每隔一个螺旋槽连通，从而在连通槽之间留下止动件。 因此，通过一次滚动操作形成螺旋花键，其中形成在花键槽和连通槽之间的毛刺被自动移除。