| 摘要 |
<p>An acceleration/deceleration control method of a numeric controller (CNC) for applying acceleration/deceleration to a tangential direction speed instruction value of a moving path instructed by feed instruction before interpolation. The instruction is read (S1) and an angle Υ with respect to an X-axis in a moving direction of a tool is calculated (S2). Tangential direction accelerations αvx, αvy are determined from the allowable maximum acceleration that is set in advance and from the angle Υ (S3). The smaller one of these tangential direction accelerations αvx, αvy is used as the tangential direction acceleration αv (S4). Acceleration/deceleration is applied to the instruction speed F by the acceleration αv (S5) and interpolation is effected (S6). This tangential direction acceleration αv is set to the maximum value within the range where acceleration of each axis does not exceed its maximum allowable value. Therefore, time required for acceleration/deceleration can be minimized.</p> |
