发明名称 |
Punch assembly for hydroforming die |
摘要 |
A punch assembly for a hydroforming die includes a servo motor, a ball screw connected to the servo motor, and a ball nut disposed about the ball screw for movement along the ball screw. The punch assembly also includes a link mechanism connected to the ball nut and a plunger operatively connected to the link mechanism and movable relative to the hydroforming die to allow fluid within a tubular member to force a wall portion of the tubular member outward against the plunger and be sheared by the hydroforming die to produce an opening in the tubular member.
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申请公布号 |
US7111482(B1) |
申请公布日期 |
2006.09.26 |
申请号 |
US20050225328 |
申请日期 |
2005.09.13 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
GHIRAN MIKE M. |
分类号 |
B21D26/02;B21D28/28;B26D7/28 |
主分类号 |
B21D26/02 |
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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