| 摘要 |
PROBLEM TO BE SOLVED: To provide a punch die which achieves the alignment of higher accuracy by setting a space between a retainer collar provided on the punch die and a punch driver to be zero. SOLUTION: The punch die is constituted so that a punch body 41 having a punch blade part 101 on its lower end is provided in a cylindrical punch guide 17 in a vertically movable manner, a stopper spring 35 is elastically equipped between a punch head 33 provided on an upper end of a punch driver 31 through which a retainer collar 27 provided on an upper part of the punch guide 17 is passed in a vertically movable manner and the retainer collar 27, and an adjusting screw member 49 integrated with or integrally provided on an upper part of the punch body 41 is screwed in a female screw part 45 provided on the punch driver 31 in a vertically adjustable manner. A tapered part 39T suitable for a downwardly tapered part 29T formed on a lower part of the retainer collar 27 is provided on a lower part of the punch driver 31. COPYRIGHT: (C)2011,JPO&INPIT
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