Smooth transfer control algorithm of continuous segment trajectory in CNC system
Published in Journal of Tsinghua University (Science and Technology), 2007
When machining complex contours, the frequent starting and stopping of the machining tool feed system reduces the machining efficiency and the machining quality. A new control algorithm was developed to realize smooth transfers along a continuous segment trajectory. The control algorithm solution process was described with an error analysis. A mathematical model of a servo system with a lead screw drive was used to analyze the dynamic characteristics of the servo system in the transfer process. The results illustrate the control algorithm efficiency. A machining simulation shows that the machining efficiency is enhanced by 14.1% and the trajectory error is smaller than 3 μm which proves the feasibility of the algorithm in an actual machining process. This algorithm effectively improves machining efficiency and contour quality.
Recommended citation: Yang, K., C. Shi, P. Ye, and Q. Lv (2007). Smooth transfer control algorithm of continuous segment trajectory in CNC system. Journal of Tsinghua University (Science and Technology) 47(8), 1295-1299