PRESS SYSTEM

摘要

A press system for knocking out a work from a lower die attached to a press machine has a cam 22 mounted on a bed of the press machine; a servo motor 21 which drives the cam to be rotated with the same cycle time as that of a drive mechanism of a slide of the press machine; a knockout pin 23 moved with reciprocal linear motion by the rotation of the cam; a detector 25 configured to detect a present angle information 24 of the cam, a memory storing a target angle information of the cam, and a controller 28 configured to control the servo motor in accordance with the present angle information and the target angle information. The controller is further configured to change a basic motion of the knockout pin according to contour of the cam to a target motion obtained from the target angle information.

主权项

1. A press system for knocking out a work from a lower die attached to a press machine;
the press system comprising: a cam mounted on abed of the press machine; a servo motor which drives the cam to be rotated with the same cycle time as that of a drive mechanism of a slide of the press machine; a knockout pin which is moved with reciprocal linear motion by the rotation of the cam; a detector configured to detect a present angle information of the cam; a memory storing a target angle information of the cam; and a controller configured to control the servo motor in accordance with the present angle information and the target angle information, the controller being further configured to change a basic motion of the knockout pin according to contour of the cam to a target motion obtained from the target angle information.