Position control method and position control system for drive feed equipment
AssigneeToshiba Kikai Kabushiki Kaisha
InventorJun Fujita
Life of this patent
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Abstract
When driving a plurality of paralleled feed drive mechanisms individually by servo motors (105, 106), torque of the servo motors (105, 106) is detected, and in dependence on a difference therebetween, a position command of servo motor (106) at a slave side is corrected, so that torque of the slave side servo motor (106) is matched to to torque of servo motor (105) at a master side.
Claims8
A position control method for feed drive equipment in which a plurality of feed drive mechanisms disposed in parallel for feeding a movable body are individually driven by servo motors, the position control method comprising:
- detecting torque of the servo motors, and correcting position commands of the servo motors in dependence on the detected torque so that the servo motors have matching torque.
A position control system for feed drive equipment in which a plurality of feed drive mechanisms disposed in parallel for feeding a movable body are individually driven by servo motors, the position control system comprising:
- a controller for detecting torque of the servo motors, and correcting position commands of the servo motors in dependence on the detected torque so that the servo motors have matching torque.
Dependencies are inferred from the claim text.