Rotation table with clamp torque measurement unit
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United States of America Patent
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Oct 20, 2015
Grant Date -
Oct 30, 2014
app pub date -
Apr 23, 2014
filing date -
Apr 24, 2013
priority date (Note) -
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Abstract
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).
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