DEVICE FOR FORMATION BY BENDING

摘要

PROBLEM TO BE SOLVED: To provide a device for formation by bending, a device capable of accurately and easily adjusting the optimum pressing force of a punch applied to a blank. SOLUTION: In the bending formation device that forms a metallic plate into a prescribed shape by moving a punch along a cam curve, a prescribed rotary angle range for one rotation of cam 200 is at least provided with a first cam pressure angle range 213 and an adjacent second cam pressure angle range 214 which is connected to the first. The increment of operation quantity of the punch 201 is fixed in the range in which the pressure angle of the second cam is smaller than that of the first cam and also in the range of the second cam pressure angle. COPYRIGHT: (C)2004,JPO