MOVEMENT CONTROL APPARATUS FOR MACHINE TOOL
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United States of America Patent
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Issued Date -
Feb 5, 2009
app pub date -
Jul 30, 2008
filing date -
Jul 30, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A movement control apparatus for a machine tool includes a travel boundary arc setting unit and a control unit. The machine tool includes a tool post that supports plurality of tools, and a drive unit adapted to relatively move at least one of the tool post and the workpiece in a direction of a first axis and in a direction of a second axis that intersects the first axis to change a tool. The travel boundary arc setting unit sets an arc so that the arc is inscribed in the first and the second axes and an axial center of the workpiece passes through a position distant from a corner portion of a tool by a radius of the workpiece. The control unit is adapted to control the drive unit so that the workpiece travels along a travel locus outside the arc while changing a tool.
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