Rotation table with clamp torque measurement unit

摘要

A rotation instruction is transmitted to a motor in a state where a workpiece placement table connected to a rotation shaft of the motor is clamped by a clamp mechanism provided in a rotation table, and a clamp torque is measured based on motor torque information in accordance with the rotation instruction and a change in rotation shaft state (a rotation position, a rotation speed, and the like).

主权项

1. A rotation table comprising:
a workpiece placement table; a motor of which one end of a rotation shaft is connected with the workpiece placement table and the other end thereof is equipped with a detector for detecting the rotation shaft state; a clamp mechanism that holds the workpiece placement table at a stop position; a rotation instruction unit that generates a rotation torque in the motor; a state monitoring unit that monitors a change in rotation shaft state based on the rotation shaft state information output from the detector; and a measurement unit that transmits a rotation instruction to the motor in a state where the workpiece placement table is clamped by the clamp mechanism and measures a clamp torque based on motor torque information in accordance with the rotation instruction and a change in rotation shaft state.