METHOD FOR DETECTING TOOL INTERFERENCE, AND DEVICE FOR DETECTING TOOL INTERFERENCE

PROBLEM TO BE SOLVED: To provide a tool interference detecting method and tool interference detecting device, capable of surely detecting interference between a work model and a tool, as well as through high-speed processing by simulation and surely obtaining information of the interference, as well as easily. SOLUTION: After setting a Z-axis parallel to the processing side height direction of a work model and a plurality of reference points located in a matrix form on an XY plane orthogonal to the Z-axis, a plurality of Z-values of work model shapes, respectively corresponding to the reference points are calculated; sweep-shape information of a contour of the tool being moved along a processing path is prepared; a plurality of Z-values of sweep shapes, respectively corresponding to the reference points are calculated, the Z-values of the work model shapes and the Z-values of the sweep shapes respectively corresponding to each of the reference points are compared; and then a portion of the Z-values of the work model shapes located nearer to a main spindle than the Z-values of the sweep shapes is detected as an interfering portion. COPYRIGHT: (C)2005,JPO&NCIPI