| 摘要 |
PROBLEM TO BE SOLVED: To realize punch working of high accuracy, and to prevent breakage of a blade tip during the working and a work plate holder. SOLUTION: In a punch die P in which a tip of a blade tip 1 mounted on a lower end of a punch body 31 is slidable to a blade tip passing hole 4 at a lower end of a punch guide 30, a tool insertion hole 5 is formed at the position communicating with a space formed when mounting the blade tip 1. The tool insertion hole 5 is formed in a work plate holder 6 or in a vicinity of the lower end of the punch guide 30. The work plate holder 6 is integrated with the lower end of the punch guide 30 or attachably/detachably constituted of a stripper plate 6 which is attachable/detachable to/from the lower end of the punch guide 30. The blade tip 1 is supported by the punch plate 2, and the punch plate 2 is temporarily attached to the lower end of the punch body 31 via a prescribed locking means. COPYRIGHT: (C)2005,JPO&NCIPI
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