| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for correcting alignment error, which compensates tool alignment. SOLUTION: A workpiece is fixed to a main spindle, a tool is fixed to a B-axis table, a distance L between a tool center and a tool edge and between the tool edge and a workpiece cutting center is found, an angleθbetween the tool center and the set workpiece cutting center and an ideal tool center is found, a touch coordinate value R1 of the tool and the workpiece after turning the B-axis table in one direction byθ+αis found, a touch coordinate value R2 of the tool and the work after turning the B-axis table in the other direction byθ-αis found, the error Xe of the tool center is found by using R1 and R2, the tool whose radius of curvature is R1 provided to the B-axis table is rotated in one direction byβ, a distance R3 in the Z axis direction between the coordinate value of the tool edge and the touch coordinate value of the tool and the workpiece at the time of turning is defined by using an error Ze in the Z axis direction and thus, the error Ze is calculated. COPYRIGHT: (C)2008,JPO&INPIT
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