发明名称 |
FORMATION OF CYLINDER PARTS PROVIDED WITH OUTER PERIPHERAL TOOTH AND DEVICE THEREOF |
摘要 |
PROBLEM TO BE SOLVED: To form a cylinder parts provided with outer peripheral tooth having almost fixed thickness of a tooth-form by thickening the outer peripheral part of a disk-like stock, thereafter, bending the thickened part to one side part by a curling work and executing a tooth cutting work. SOLUTION: The outer periphery of the disk-like stock A is subjected to a roller working by a initial stage thickening roller R1 having narrow roller groove angle and successively, by a second thickening roller R2 having a little wider roller groove angle. After forming the annular thickened part on the outer periphery of the disk-like stock A, the curling work is executed with a curling roller K to form an intermediate formed material E of a cylinder part having projecting thickened part at the one side. Successively, a backup roller U regulating tooth width is provided at the position where the thickened cylinder part of the intermediate formed material E is confronted to a tooth- forming roller F to form the outer periphery of the prescribed tooth-form by being pressurized by the tooth-forming roller F. |
申请公布号 |
JPH0985370(A) |
申请公布日期 |
1997.03.31 |
申请号 |
JP19950269419 |
申请日期 |
1995.09.22 |
申请人 |
NISSAN MOTOR CO LTD;NIPPON SPINDLE MFG CO LTD |
发明人 |
NISHIMURA FUMITAKA;AKIYOSHI HIDEYASU;MURATA SHIGEO |
分类号 |
B21D53/28;B21H1/04;B21H5/00;B21H5/02;(IPC1-7):B21D53/28 |
主分类号 |
B21D53/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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