PRESS ANGLE CONTROL DEVICE, PRESS MACHINE FACILITY, AND PRESS ANGLE CONTROL METHOD

摘要

There are provided a device and a method capable of reducing a press angle control error caused by a press load variation and of preventing a press load variation of one press machine from acting on the other press machine. The device includes: a reference value output unit 25 which outputs a press angle reference value; and a press angle detection unit 27, a speed command unit 29, and a driving unit 31 which are provided for each press machine. The press angle detection unit 27 detects a press angle of the corresponding press machine and outputs a press angle detection value. The speed command unit 39 outputs a command speed value of a motor of the corresponding press machine on the basis of the press angle reference value and the press angle detection value. The driving unit 31 controls a speed of the motor of the corresponding press machine on the basis of the command speed value. The device further includes a correction unit 33 which corrects the press angle reference value or the command speed value so that a difference between the press angle reference value and the press angle is within a predetermined range.