一种对称式直线加减速方法

摘要

在高速高精加工中，定位时间和定位精度是衡量数控系统性能的两项重要指标。论文分析了传统直线加减速中定位时间较长的原因，在此基础上提出了采用对称思想使减速段与加速段严格对称的改进方法，并进行了仿真和实验。结果表明在保证精度的前提下，采用该方法可以缩短定位时间，能够提高定位效率。%In high-speed and high-precision processing industry, the positioning time and positioning accura-cy are the most important indicators in measured the performance of CNC machine tools . The reasons of po-sitioning time longer in the traditional linear acceleration and deceleration control is analyzed. On this basis, it puts forward an improved linear acceleration and deceleration control methods whose deceleration and ac-celeration segments are strictly symmetrical and carries out simulation and experiment. The results show that this method can shorten the positioned time and improve the positioning efficiency under the premise of ensu-ring accuracy.