Chuck grip accuracy checking method, chuck claw exchanging method, and chuck grip accuracy checking device

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United States of America Patent

PATENT NO 11794301
APP PUB NO 20210308817A1
SERIAL NO

17266332

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A chuck grip accuracy checking method includes a gripping in which the measurement target is gripped on the claws, a moving step, and a measuring step. In the moving step, a movable member provided with a measurement instrument capable of measuring a run-out of the measurement target is moved by driving a movable-member driver to a position at which the measurement instrument can measure a run-out of the measurement target. In the measuring step, a run-out of the measurement target is measured by the measurement instrument, while the chuck is being rotated by driving a rotation driver.

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Patent Owner(s)

  • HOWA MACHINERY LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nagaosa, Hiroshi Kiyosu, JP 7 7

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