Device for holding workpiece and machine tool
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United States of America Patent
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Mar 27, 2018
Grant Date -
Jan 28, 2016
app pub date -
Jul 20, 2015
filing date -
Jul 25, 2014
priority date (Note) -
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Abstract
Provided is a device that prevents a workpiece from sticking to a clamp part and moving with the clamp part to a position deviating from a predetermined position. The device for holding the workpiece includes: a seat on which the workpiece is seated; a clamper that is movable with respect to the seat; a clamp part that is movably supported by the clamper and is configured to hold the workpiece at a clamp position with respect to the clamper in such a manner that the clamp part is pressed against the workpiece by an operation of the clamper so that the workpiece is held between the clamp part and the seat; and a biasing part that is configured to bias the clamp part to move the clamp part from the clamp position when the clamp part is at the clamp position.
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