DEVICE FOR ADJUSTING POSITIONING OF DIE IN PRESS BLEAK

摘要

PROBLEM TO BE SOLVED: To improve bending precision and to deal with a thin sheet by equalizing a die length to a bending length. ;SOLUTION: An upper die 17 is constituted by fixedly providing with a center die 25 at the center part of an upper table 13, movably providing with side dies 27R and 27L to the both sides of the center die 25 and movably providing with plural reference dies 29R and 29L to right and left sides of side dies 27R and 27L. Only side dies 27R and 27L are provided so as to changeably move to the right and left by a screw member 39 provided with right and left screws 37R and 37L with equal right and left gaps S with respect to the center die 25. By this way, the die length is equalized to the bending length, thereby improving bending precision and dealing with bending of the thin sheet.;COPYRIGHT: (C)1997,JPO