发明公开
- 专利标题： STRETCH DRAW DIE AND METHOD
- 专利标题（中）： 拉伸和绘图工具和相关方法
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申请号： EP98942430.4申请日： 1998-09-15
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公开(公告)号： EP1047511A1公开(公告)日： 2000-11-02
- 发明人: GENSEBERGER, Erich , HICKEY, Patrick , UMEDA, Tatsuo , TIEU, Richard
- 申请人： Cosma International Inc.
- 申请人地址： 337 Magna Drive Aurora,Ontario L4G 7K1 CA
- 专利权人： Cosma International Inc.
- 当前专利权人： Cosma International Inc.
- 当前专利权人地址： 337 Magna Drive Aurora,Ontario L4G 7K1 CA
- 代理机构： Kovac, Werner, Dipl.-Ing.
- 优先权： US59294P 19970918
- 国际公布： WO9914001 19990325
- 主分类号： B21D25/02
- IPC分类号： B21D25/02
摘要：
A die assembly for draw stamping sheet metal in a press has an upper die structure and a lower die structure, each constructed and arranged to be mounted on a press for reciprocal movement therebetween. The upper die structure and the lower die structure have complementary stamping surfaces for stamping sheet metal to a desired configuration. A clamping assembly and a stretching assembly grip the sheet metal along opposite sides of the complementary stamping surfaces and drivingly move apart pre-stretching the sheet metal as the upper die structure and the lower die structure are closed to stamp the sheet metal to the desired configuration.
公开/授权文献
- EP1047511B1 STRETCH DRAW DIE AND METHOD 公开/授权日：2002-07-31
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