| 摘要 |
<p>This numerical control device is provided with a path local filter and a pulse interpolation unit. The path local filter locally interpolates an interpolation interval which extends before and after a point to be interpolated on a toolpath and which has a specific interval width, such that the change of the derivative value is continuous at said point to be interpolated. If a special instruction is inputted to an instruction input device indicating deceleration or acceleration of the transfer object, the pulse interpolation unit derives a reference time which advances at each shortened or extended reference unit time to a degree corresponding to the deceleration indication or acceleration indication of said special instruction, calculates, from a parametric time function, parameters at timepoints for each reference unit time of the derived reference time, calculates position coordinates on the locally-interpolated toolpath in the workpiece coordinate system corresponding to said calculated parameters at the timepoints, calculates, from said calculated position coordinates at each timepoint, position coordinates on each transfer axis, calculates, from the calculated position coordinates on each transfer axis, a transfer amount of a support body in each transfer axis direction for each reference unit time of the aforementioned derived reference time, and sets this transfer amount of each reference unit time as the instruction pulse for each specific interval.</p> |
