NUMERIC CONTROL DEVICE

摘要

Disclosed is a numeric control device for controlling a machine tool having a translational axis and a rotational axis in order to achieve high-precision processing by correcting effects of translation error and attitude error dependent on movement of the translational axis and translation error and attitude error dependent on movement of the rotational axis; said numeric control device comprising a translational axis dependent position correction amount calculation means (6) for calculating a position correction amount of a translational axis from the translation error and attitude error dependent on movement of the translational axis; a rotational axis dependent position correction amount calculation means (7) for calculating a position correction amount of a translational axis from the translation error and attitude error dependent on movement of the rotational axis; a rotational axis angle correction amount calculation means (8) for calculating an angle correction amount of a rotational axis from a portion of the attitude error dependent on movement of the translational axis and a portion of the attitude error dependent on movement of the rotational axis; and a position-added-correction-amount calculation means (9) for calculating a position correction amount of a translational axis corresponding to the rotational axis correction amount.