| 摘要 |
PCT No. PCT/JP93/01415 Sec. 371 Date May 31, 1994 Sec. 102(e) Date May 31, 1994 PCT Filed Oct. 1, 1993 PCT Pub. No. WO94/09420 PCT Pub. Date Apr. 28, 1994.A numerical control apparatus for controlling a machine tool to simply and accurately cyclically machine a workpiece. When the operator enters graphic data such as circular or rectangular graphic data in an interactive fashion from a keyboard or the like according to guidance information displayed on a display unit, a graphic data memory device stores the entered graphic data. A converting device calculates a machining path for cyclically machining a workpiece based on the graphic data and converts the machining path into NC commands, which are then stored in an NC command memory device. An interpolating device outputs an interpolated pulse signal to move the machine tool along the cyclic machining path based on a pulse signal from a manual pulse generator or a jog feed button on a machine control console. By freely operating the machine control console, the operator can easily and accurately effect cyclic machining on a workpiece while confirming a machined status.
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