| 摘要 |
PCT No. PCT/JP93/01450 Sec. 371 Date Jun. 2, 1994 Sec. 102(e) Date Jun. 2, 1994 PCT Filed Oct. 7, 1993 PCT Pub. No. WO94/09421 PCT Pub. Date Apr. 28, 1994.A computerized numerical control apparatus for switching an acceleration constant for acceleration/deceleration prior to interpolation in accordance with the kind of an axis, in which an acceleration/deceleration prior to interpolation unit subjects a feed speed to an acceleration/deceleration process based on an acceleration constant designated by an acceleration constant switching unit. The feed speed subjected to the acceleration/deceleration process is transferred to an interpolation unit. The interpolation unit determines distribution pulses Xp, Yp, Zp based on the speed data and movement data thereof. The distribution pulses are applied to an X-axis control unit and the like, respectively, and output to the respective axis motors Mx and the like to execute the drive control thereof. On the other hand, a commanded axis recognition unit recognizes the kind of an axis commanded in a next block and the acceleration constant switching unit switches an acceleration constant in accordance with the kind of the axis. For example, when only an X-axis or Y-axis or both X- and Y- axes are used as the kind of an axis, an acceleration constant TA is selected, whereas when a Z-axis is included in the kind of the axis, an acceleration constant TB is selected. In this case, the acceleration constant TA is set to a value larger than the acceleration constant TB.
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