发明名称 |
A JOINING METHOD AND A DEVICE FOR OPERATING A FASTENING TOOL |
摘要 |
The stamping machine (2) has a stamping tool (16) pushing a rivet against a top sheet (A). The top sheet rests on a bottom sheet (B). The river deforms the sheets and forcing them into a matrix (6). A cylindrical holder piece (22) presses the sheets down against the rim of the matrix. A cylinder (4) contains a first piston (12) with a piston rod pressing down on an intermediate piece and the stamp. There are hydraulic fluid connections (24,26) to chambers (10a) above and (10b) below the first piston. A second piston slides on the piston rod of the first piston and pushes on the holder piece. It has throttle channels (28) allowing hydraulic fluid to flow through it slowly. |
申请公布号 |
CA2688948(A1) |
申请公布日期 |
2006.03.24 |
申请号 |
CA20052688948 |
申请日期 |
2005.08.17 |
申请人 |
BOELLHOFF VERBINDUNGSTECHNIK GMBH |
发明人 |
LANG, HANS JOERG;DRAHT, TORSTEN |
分类号 |
B21J15/20;B21J15/42;F16B5/04;F16B19/06 |
主分类号 |
B21J15/20 |
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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