CONTROL METHOD FOR MACHINE TOOL
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United States of America Patent
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Issued Date -
Dec 11, 2014
app pub date -
Apr 23, 2014
filing date -
Jun 10, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a control method for a machine tool including two or more translation axes and at least one rotation axis, a command for a distal end position of a tool and an attitude of the tool is provided to correct an error in the distal end position and the attitude with respect to a workpiece due to a geometric error to calculate a command value for controlling the translation axes. The method includes calculating the command value on the basis of a command coordinate value for the distal end position, a converted coordinate value obtained by converting a coordinate value of a rotation center point of the rotation axis in an actual state into a coordinate value without an error in inclination, and an axial unit vector for the ideal rotation axis.
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