JPS56148423A - Punching press - Google Patents

Abstract

PURPOSE: To punch the work with good accuracy, and to make the design of the cam easy, by directly supporting the slide cam equipped with punching tools respectively for punching two positions of the work on the upper and lower dies, respectively.

CONSTITUTION: A work W is put on the lower die 12. As the upper die 11 goes down, the pressing member 34 touches the upper end face of the driving cam 22 which thereby goes down against the force of the spring 26. The slide plane 24 of the driving cam 22 presses the slide plane 31 of the slide cam 28 which then makes a linear motion against the force of the spring 32, and the punch 30 collaborates with the buttom die 17 in punching a hole in the first plane 13 of the work W. As the upper die 11 further goes down, the slide plane 39 of the slide cam 36 touches the slide plane 25 of the driving cam 22, and the slide cam 36 moves againt the force of the spring 40. The punch 38 collaborates with the button die 18 in punching a hole in the second plate 14 of the work W. As the punching work is completed, the upper die 11 goes up to the initial position.

COPYRIGHT: (C)1981,JPO&Japio