Positioning control system
AssigneeFujitsu Fanuc Limited
InventorsYoshinori Kohzai, Hidetsugu Komiya, Yoichi Amemiya, Yo Ikebe, Jun Ikebe
Life of this patent
Estimating the term…
Abstract
A positioning control system which has a servo system provided with a position feedback system for detected positional information and a velocity feedback system for detected velocity information of a motor and in which the motor is driven by the servo system in accordance with commanded positional information to position a movable machine part of a numerical-controlled machine. The disparity between the detected velocity of the movable machine part and the detected motor velocity is fed back to the control input side of the motor, thereby suppressing vibration of the movable machine part at the moment of completion of the positioning operation.
Claims9
A control system for positioning a movable machine part that is connected to a motor in a numerically controlled machine, by feedback within said system of selected positional information of said motor or said machine part, and of information of the velocity of the motor, said control system receiving commanded positional information to operate said system to drive said motor to control the machine part, said control system comprising
- means for detecting said velocity information of said motor,
- means for providing said selected positional information,
- means for providing information corresponding to the velocity of the machine part, and
- first difference means for outputting the difference between said velocity information of the machine part and said detected motor velocity information for said feedback.
Dependencies are inferred from the claim text.