| 摘要 |
PURPOSE:To achieve processing with small permissible error for a thick works, by making pressing of hole punch to the side of a work with a sliding cam which moves transversally by several times to the amount of descent of a punch plate. CONSTITUTION:When a punch plate 10 is descended, a pinion 16 gears with a rack gear 5 and the pinion 16 moves along the rack gear 5 by further descending. Thus, the 1st sliding cam 13 laterally moves and the pinion 16 rotates and the 2nd sliding cam 18 moves laterally. Then, a work 30 is placed on a lower die 2, and the amount of descent of the punch plate 10 is restricted so that the tip of a punch 22 of the tip of the 2nd sliding cam 18 is inserted to a through- hole 6 formed at the side of the lower die 2 when the punch plate 10 falls down to the lower dead point, allowing to make hole punching to the side of the work 30. |
