发明名称 |
Piercing apparatus |
摘要 |
Apparatus for piercing an arcuate workpiece includes a frame, an index table rotatably mounted on the frame, piercing means horizontally adjustable on the frame with respect to the index table and a punch head movable horizontally into engagement with the workpiece mounted to the index table. A swivel clamping mechanism detachably mounts the workpiece to the index table.
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申请公布号 |
US4128028(A) |
申请公布日期 |
1978.12.05 |
申请号 |
US19770770525 |
申请日期 |
1977.02.22 |
申请人 |
SPRINGFIELD TOOL & DIE, INC. |
发明人 |
KNIBBE, JAN C.;MCPHEE, WILLARD J. |
分类号 |
B21D28/30;B23Q1/48;(IPC1-7):B26F1/02 |
主分类号 |
B21D28/30 |
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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