发明公开
EP2799159A1 Die with profiled base wall and its associated punch
审中-公开
Matrize mit profilierter Bodenwand undzugehörigesStanzwerkzeug
- 专利标题: Die with profiled base wall and its associated punch
- 专利标题(中): Matrize mit profilierter Bodenwand undzugehörigesStanzwerkzeug
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申请号: EP14166006.8申请日: 2014-04-25
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公开(公告)号: EP2799159A1公开(公告)日: 2014-11-05
- 发明人: Nordlin, William F.
- 申请人: Greenlee Textron Inc.
- 申请人地址: 4455 Boeing Drive Rockford, Illinois 61109 US
- 专利权人: Greenlee Textron Inc.
- 当前专利权人: Greenlee Textron Inc.
- 当前专利权人地址: 4455 Boeing Drive Rockford, Illinois 61109 US
- 代理机构: Müller, Enno
- 优先权: US201313874022 20130430
- 主分类号: B21D28/34
- IPC分类号: B21D28/34
摘要:
An assembly includes a die (60) and a punch (10a) which cut a hole in a workpiece. The die (60) has a base wall (62) having outer (70) and inner (72) surfaces and a passageway (66) extending therethrough, and a wall (64) extending from the base wall (62). The inner surface (72) of the base wall (62) has at least one portion which is angled relative to a central axis (68) of the die (60). The punch (10a) includes a body (12) having a bore (13) therethrough, a leading edge (29) on the body (12) which is capable of piercing and cutting a workpiece, and cutting edges (30c, 32c) on the body (12) for cutting a hole in the workpiece. The leading edge (29) has inclined surfaces (38a, 38b) between the bore (13) and the piercing points (P1, P2) which engage with the portion of the inner surface (72) of the die (60).
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