INTERFERENCE CHECK DEVICE AND NUMERICAL CONTROL DEVICE

摘要

Provided is an interference check device, comprising: a contour profile analysis unit (13) which analyzes a two-dimensional image of a rotary tool and extracts a contour profile of a tool cross-section and a tool length; a rotational center analysis unit (14) which analyzes the contour profile and derives the rotational center of the rotary tool; a three-dimensional rotation profile creation unit (15) which, on the basis of the contour profile, the tool length, and the rotational center, creates a three-dimensional profile of the rotary tool; and an interference check processing unit (16) which uses the three-dimensional profile to check whether the rotary tool and a member other than the rotary tool will interfere when a workpiece is subjected to numerical control machining using the rotary tool. The three-dimensional rotation profile creation unit (15) creates the three-dimensional profile of the rotary tool using a left-side contour profile, which is a portion of the contour profile further to the left side from the rotational center, and a right-side contour profile, which is a portion of the contour profile further to the right side from the rotational center.