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US 2018/0021870 A1Published application
Wire electrical discharge machine and wire electrical discharge machining method
AssigneeFanuc Corporation
InventorKazuhiko Murakawa
Life of this patent
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Abstract
A wire electrical discharge machine obtains position error information indicating a position error in a planar direction in a workpiece placed on a mounting table after relative positions between a first guide unit and a second guide unit are changed, and calculates a position of the workpiece with the corrected position error in the planar direction in a state where a wire electrode is inclined according to an inclined state of the workpiece by using this position error information.
Claims10
A wire electrical discharge machine comprising:
- a mounting table configured to allow a workpiece to be placed on a placement plane;
- and a first guide unit and a second guide unit configured to allow a wire electrode to be stretched therebetween and support the wire electrode, wherein the wire electrical discharge machine performs electrical discharge machining on the workpiece in a state where the wire electrode is inclined with respect to the placement plane by changing relative positions between the first guide unit and the second guide unit, the wire electrical discharge machine comprising:
- an error information obtaining unit configured to obtain position error information indicating a position error in a planar direction of the workpiece placed on the mounting table after the relative positions between the first guide unit and the second guide unit are changed when a three-axis coordinate system formed by the planar direction corresponding to the placement plane and a normal direction of the placement plane is defined;
- and
- a workpiece position calculating unit configured to calculate a position of the workpiece after correction of, by using the position error information obtained by the error information obtaining unit, the position error in the planar direction in a state where the wire electrode is inclined according to an inclined state of the workpiece.
2 more elements
A wire electrical discharging method of a wire electrical discharge machine comprising:
- a mounting table configured to allow a workpiece to be placed on a placement plane;
- and a first guide unit and a second guide unit configured to allow a wire electrode to be stretched therebetween and support the wire electrode, and configured to perform electrical discharge machining on the workpiece in a state where the wire electrode is inclined with respect to the placement plane by changing relative positions between the first guide unit and the second guide unit, the wire electrical discharging method comprising:
- an obtaining step of obtaining position error information indicating a position error in a planar direction in the workpiece placed on the mounting table after the relative positions between the first guide unit and the second guide unit are changed when a three-axis coordinate system formed by the planar direction corresponding to the placement plane and a normal direction of the placement plane is defined;
- and
- a calculating step of calculating a position of the workpiece with the corrected position error in the planar direction in a state where the wire electrode is inclined according to an inclined state of the workpiece by using the obtained position error information.
2 more elements
Dependencies are inferred from the claim text.