| 摘要 |
PROBLEM TO BE SOLVED: To provide a press processor which can suppress a variation generated in a shape of a punch hole which is drilled at a plate.SOLUTION: In a press processor 1 in which a punch 10 drills a punch hole 39 at a plate 30, the punch 10 has a fuselage 12 extending to a center axis O direction, a tapered face 13 extending from the fuselage 12 while inclining so as to approximate the center axis O, and a punch blade face 14 extending to a tip of the tapered face 13. The punch blade face 14 of the punch 10 which moves to the center axis O direction drills the punch hole 39 at the plate 30 by entering a die hollow part 5, and then, the tapered face 13 and the fuselage 12 of the punch 10 which moves to the center axis O direction sequentially enter the die hollow part 5, thus expanding the punch hole 39.SELECTED DRAWING: Figure 1 |
