NUMERICAL CONTROL DEVICE

摘要

A numerical control device which controls an NC machine tool having a rotating mechanism in which a table (2) turns on an axis (5) crossing perpendicular to the axial direction of a spindle (4), wherein the spindle (4)-to-table (2) interference areas (1, 7) are calculated from the rotating angle of the table (2) for each interpolation processing and it is checked in real time whether or not the spindle (4) interferes with the table (2) after movement so as to prevent tool systems (4, 6, 9) from interferring with the table (2).