DEVICE AND METHOD FOR CONTROLLING POSITION OF MACHINE TOOL

摘要

PROBLEM TO BE SOLVED: To provide a device and a method for controlling the position of a machine tool allowing increase of position loop gains when a servo motor is driven and controlled by full-closed loop control, thus controlling while inhibiting machine vibration and to keep responsiveness from worsening. SOLUTION: A control circuit of the device 10 for controlling the position of a machine tool computes an integrated feedback value g on the basis of a function F (VM, PM, Vm, Pm) which involves four pieces of information, motor velocity VM, motor position PM, machine velocity Vmand machine position Pm. A thrust commandτ* is compensated by the integrated feedback command g. COPYRIGHT: (C)2005,JPO&NCIPI