| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a displacement from a desirable machining shape generated by wear on the tool and a stage difference due to tool change. SOLUTION: When machining a work W, quantity of wear on the tool T when machining is estimated, and a position command generated on the basis of a preset machining program is corrected in order during the machining on the basis of the estimated quantity of wear on the tool T to obtain a desirable machining shape, and machining is performed to the work W on the basis of the corrected position command. Quantity of wear on the tool T when interrupting the machining is computed, and when starting machining again at the machining interrupting position, a position command generated on the basis of the preset machining program is corrected on the basis of the computed quantity of wear on the tool so that position of the blade edge of the tool T when interrupting cutting and position of the blade edge of the tool T when starting machining again becomes equal to each other. COPYRIGHT: (C)2004,JPO&NCIPI
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