| 摘要 |
<P>PROBLEM TO BE SOLVED: To make inward-turning amount in a corner section allowable inward-turning amount or less even when jointly using acceleration/deceleration before interpolation and acceleration/deceleration after interpolation. <P>SOLUTION: A numerical control device performing a speed control by allowable inward-turning amount in a corner section includes: a command analysis section 10 for analyzing a machining program and converting the machining program into an execution form; a pre-interpolation acceleration/deceleration section 12 for performing a speed control; an interpolation processing section 14 for performing interpolation processing to output a move command to each axis; post-interpolation acceleration/deceleration processing sections for respective axes (a post-interpolation acceleration/deceleration processing section 16X for an X-axis, a post-interpolation acceleration/deceleration processing section 16Y for a Y-axis and a post-interpolation acceleration/deceleration processing section 16Z for a Z-axis) perform post-interpolation acceleration/deceleration processing on the move command; and each axis servo (an X-axis servo 18X, a Y-axis servo 18Y, and a Z-axis servo 18Z) performs each servo control on the basis of the move command after the post-interpolation acceleration/deceleration processing and performs feedbacks of positions, speed and current to drive and control each axis servo motor. The pre-interpolation acceleration/deceleration section 12 includes a corner section speed calculation section 20 and a corner section speed zero holding time calculation section 22 by the allowable inward-turning amount. <P>COPYRIGHT: (C)2013,JPO&INPIT |
