发明名称 Punch and die system
摘要 A punch and die system is disclosed as comprising punch and die templets serving to positionally locate punch and die assemblies relative thereto solely adjacent the region at which punching of a workpiece occurs in combination with guide assemblies for positionally locating the punch and die templets one to the other. The punch and die assemblies are designed to utilize interchangeable punch guide and die members and in a preferred construction a punch element is removably attached to its associated driver and shaped to permit opposite ends thereof to be employed in the punching operation. One or more punch elements may be loosely attached to their associated drivers.
申请公布号 US4947719(A) 申请公布日期 1990.08.14
申请号 US19890339715 申请日期 1989.04.17
申请人 S. B. WHISTLER & SONS, INC. 发明人 WHISTLER, S. ARTHUR
分类号 B21D28/34;B21D37/04;B26D7/26;B26F1/14 主分类号 B21D28/34
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