FINE SHAPE CUTTING DEVICE AND FINE SHAPE CUTTING METHOD

PROBLEM TO BE SOLVED: To provide a fine shape cutting device and method for performing work for a highly accurate fine shape on the surface of a workpiece. SOLUTION: The fine shape cutting work device comprises: a NC device 21 for outputting a timer count starting command in starting a driving program for controlling the drive of X or Y moving mechanisms 12, 11; an arrival time computing means 22 for computing an arrival time T1 until a cutting tool arrives at a working starting position after the timer count starting command is outputted, in accordance with relative moving speed information for the moving mechanisms and working starting position information for a workpiece W; an elapsed time determining means 23 for determining that an elapsed time T2 after the timer count starting command is outputted corresponds to the arrival time T1 and for outputting a trigger signal when it corresponds thereto; and a reciprocating stage driving means 24 for driving a reciprocating stage so that the cutting tool is moved forward and backward with a predetermined infeed amount, after receiving the trigger signal. COPYRIGHT: (C)2009,JPO&INPIT