| 摘要 |
<p>The variation of the correction effect due to variation with time of friction and the difference of machining conditions is suppressed by calculating an ideal position based on an ideal servo system model, multiplying the difference between the calculated ideal position and an actual position feedback by a specified gain only for a specified time after the direction of the ideal position is reversed, and adding the result, as a correction, to a speed command. Even in a mechanical system where the torsion of a ball screw and the elastic variation of a sealing material are greate, biting due to back torsion after correction is suppressed and a servo system is prevented from being unstable.</p> |
