Title:
PROCESS FOR PRODUCING RACK BY COLD DEFORMING, RACK PRODUCED BY THIS METHOD AND APPARATUS FOR PRACTICING THIS PROCESS
Document Type and Number:
Japanese Patent JP3490489
Kind Code:
B2
Abstract:
PURPOSE: To cost advantageously produce precision racks in a time saving manner and simultaneously to achieve the improvement in the quality of the racks as far as possible.
CONSTITUTION: Relative movement is executed in a feed direction (arrow 170) extending in a direction transverse to the axis of a rolling head 11 driven so as to rotate about its own axis between a workpiece 2 and this rolling head. The workpiece 2 is moved relative to the rolling head by this movement. A roller 111 which is rotatably supported at the rolling head along a helical line 12 and has at least one tooth space-like annular ribs rotated in a planetary manner together with the rolling head is adapted to act on the workpiece. At this time, the discrete rolling processes overlapping on each other in the feed direction are executed by the respective rollers in quick sequence so that in these processes the annular ribs of the rollers displace the workpiece material mainly from the dedendum toward the tip under the cold deforming of the workpiece.
More Like This:
| WO/1992/005897 | GEAR WHEELS ROLLED FROM POWDER METAL BLANKS |
| JPH09242848 | TOOTHED GEAR |
Inventors:
Hans Klapfenbauer
Application Number:
JP858894A
Publication Date:
January 26, 2004
Filing Date:
January 28, 1994
Export Citation:
Assignee:
Ernst Grob AG
International Classes:
B21H5/00; B21H7/14; B21K1/76; F16H55/26; (IPC1-7): B21H7/14; B21H5/00
Domestic Patent References:
| JP639468A | ||||
| JP5954439A | ||||
| JP5920943U |
Attorney, Agent or Firm:
Toshio Yano (1 outside)