| 摘要 |
PROBLEM TO BE SOLVED: To suppress an error of a processing a shape of a work while suppressing generation of a machine shock caused by abnormal data in a machine spindle path.SOLUTION: A numeral control device 2 comprises: a path conversion part 26 that performs a specific process to a reference machine spindle path as to each machine spindle direction derived by a reference machine spindle path derivation part 24 and thereby derives a post-converted machine shaft path as to each machine spindle direction; and an acceleration/deceleration filter 28 that performs an acceleration/deceleration process for relaxing a change of a transfer velocity of each of support bodies 102b, 106a, 108a, and 110a obtained from the post-converted machine spindle path with respect to the post-converted machine spindle as to each machine spindle direction. The path conversion part 26 calculates a correction amount equivalent to an error between a machine spindle path after the same conversion post-converted acceleration/deceleration process as the acceleration/deceleration process described above is performed to the reference machine spindle path and the reference machine spindle path for each machine spindle direction and calculates the post-converted machine spindle path having the reference machine spindle path as to each machine spindle direction corrected in a direction in which the error is cancelled out by the calculated correction amount. |
