发明名称 Tungsten carbide parallel punch - is located in steel holder and fixed by grub screw and supported by pressure plate
摘要 <p>The punch (7) is made of tungsten carbide and has parallel sides. The punch is located in the cylindrical holder (1) with a parallel bore. The punch is supported by the distance piece (12) fitted in the bore and allowing the punch end to protrude the necessary amount. The top of the steel holder has a cam (15) to prevent the holder rotating. The bottom of the punch holder has a collar (10) held in position by a grub screw through the radial hole (11). The punch assembly is fixed in a holding plate (3).</p>
申请公布号 FR2377854(A1) 申请公布日期 1978.08.18
申请号 FR19770001381 申请日期 1977.01.19
申请人 VIRAX 发明人
分类号 B21D28/14;B21D28/34;(IPC1-7):21D28/02 主分类号 B21D28/14
代理机构 代理人
主权项
地址
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