Machine tool
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United States of America Patent
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Feb 28, 2017
Grant Date -
Feb 6, 2014
app pub date -
Aug 30, 2012
filing date -
Aug 30, 2011
priority date (Note) -
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Abstract
A machine tool including: a table disposed on a saddle movable along an X-axis; a pair of linear motors that moves the table along a Y-axis; position detectors that detect a first position and a second position of the table on the Y-axis; a pair of guide rails attached to the saddle; and four bearings engaged with the pair of guide rails, is provided. The machine tool includes a connecting unit connecting the table to the four bearings such that the table is rotatable relative to the four bearings, and a control unit that controls the pair of linear motors on the basis of the first and second positions.
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