Numerical control method
AssigneeFanuc Corporation
InventorsTakahiko Endo, Tooru Wantanabe, Yasushi Takeuchi
Life of this patent
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Abstract
An axis position is commanded according to data stored in a memory table where the axis position is stored in association with a reference value consisting of time or spindle position. For commanding the shape of a circular arc, a start and end points, a center position, and a radius of the circular arc and designation of sine or cosine are set in advance in the memory table. Then, a movement command for connecting the start point and the end point with the circular arc is output to each of axes, using a trigonometric function defined by the center position of the circular arc, the radius of the circular arc and the designation of sine or cosine, which have been set.
Claims3
A numerical control method for driving each of axes by commanding an axis position according to data stored in a memory table where the axis position is stored in association with a reference value consisting of time or spindle position, comprising:
- setting up a start point and end point of a circular arc, a center position of the circular arc, a radius of the circular arc and designation of sine or cosine in the memory table when the shape of the circular arc is commanded;
- and
- outputting a movement command to each of axes for connecting the start point and the end point with the circular arc, using a trigonometric function defined by the center position of the circular arc, the radius of the circular arc and the designation of sine or cosine, which have been set in the memory table.
Dependencies are inferred from the claim text.