HMSKC数控装置是由TP801单板机控制C20的开环控制系统。由于采用普通丝杆传动,系统转动惯量加大。调试时发现:当车床进入高速(5100步/秒以上)运行后的升降速过程中偶然有失步现象,造成加工尺寸达不到精度要求。分析失步的主要原因是在大惯量、高速度条件下,升降速变化率过大。 升降速过程控制是由软件完成的。传统的编程方法是:从低速到高速(或由高速到 HMSKC CNC device is controlled by TP801 single-board C20 open-loop control system. As a result of ordinary screw drive, the system increases the moment of inertia. Debugging found: When the lathe into the high-speed (5100 steps / sec above) after the run-down process of the occasional out-of-step phenomenon, resulting in the processing size of less than accuracy requirements. The main reason for analyzing the out-of-step is that under the conditions of high inertia and high speed, the rate of change of the ascending and descending speed is too large. Rising and falling process control is done by software. The traditional programming method is: from low speed to high speed (or from high speed to