| 主权项 |
1. A cutting tool machining method including measuring a position of a blade face in a cutting tool attached to a rotary axis by a touch sensor or a non-contact position detecting device, for creating a machining program based on the measured position, and for machining a blade section of the cutting tool by wire electric discharge, the cutting tool machining method comprising:
fixing a rod-shaped reference bar to the rotary axis; performing rotation positioning in at least three rotation angle positions by the rotary axis; measuring a position in an outer circumferential section near a rotation center height in a direction approaching an outer circumferential surface of the reference bar for measurement at each rotation angle position by the touch sensor, the non-contact position detecting device, or a wire electrode; storing the measured positions in a storage unit as rotational run-out position information for the rotation angle positions; calculating a center coordinate of rotational run-out, and a rotation coordinate and a run-out error of each rotation angle position based on the stored rotational run-out position information; and correcting the machining program or a machining path to cancel the rotational run-out error determined by the calculation, when the cutting tool is fixed to the rotary axis and machined. |
