| 摘要 |
PROBLEM TO BE SOLVED: To provide a measuring method for the center position of a rotating tool for correcting a tool diameter by automatically measuring the deflection of the rotation center of a main spindle. SOLUTION: A reference tool having a known tool diameter D and a complete round shape is rotated at the revolving speed for cutting by using a noncontact sensor, the outermost outer peripheral position and the innermost outer peripheral position are detected when the reference tool is rotated, and their coordinate positions A1 and A2 are read. The center coordinate value of the outer peripheral deflection (A1+A2)/2 is found based on A1 and A2, and the position obtained by subtracting a half of the diameter of the reference tool from the center coordinate value (A1+A2)/2-(D/2) is found by calculation as the rotation center of the rotating tool.
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