Tool compensation method
AssigneeFanuc Corporation
InventorsHajimu Kishi, Masaki Seki, Masashi Kawasumi
Life of this patent
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Abstract
A tool compensation method for cutting a surface on a workpiece having a slanted surface. A radius at a final point is determined by a path computing unit using coordinates of the final cutting point and a tool height. Based on these values thus determined, coordinates of a final offset position, which is aligned with a tool center, is also computed. Corrective values in the directions of the X and Y axes are determined using the computed coordinates and coordinates of a starting offset position, to thereby correct the movement of the tool center.
Claims6
A tool compensation method for offsetting a tapered tool by a distance corresponding to a tool radius from a commanded tool path for cutting a workpiece, wherein the tool path has a varied depth relative to a work surface, comprising the following steps:
- (a) storing data defining
- (i) the inclination a.degree. of a uniform taper of the tapered tool, and
- (ii) a radius r of the tapered tool at a given height h above the tip of the tool;
- (b) determining an offset value based on said data defining the inclination, said radius, and height;
- and
- (c) offsetting the tool according to said offset value to cut the workpiece, thereby utilizing a corrected tool position dependent upon the depth of which the tool is infed.
Dependencies are inferred from the claim text.