数控磨削中的智能精度控制

智能控制技术的发展为机床的控制提供了有力的工具.本文介绍了一种陶瓷刀片数控磨削加工的实时智能控制技术及算法.在陶瓷刀片数控磨削加工过程中,被加工刀片的尺寸随着被加工刀片数量的增加会逐渐增大而超出允许误差.影响误差的因素很多且不断变化,误差产生的规律很复杂.利用文中介绍的智能自学习误差补偿技术,数控系统能通过自学习自动改进补偿策略,控制加工误差.最后给出了仿真结果.

INTELLIGENT PRECISION CONTROL IN CNC GRINDING

The development of intelligent control techniques provides powerful means for the control of machine tools. In this paper, a intelligent control technique and an algorithm for precision control of CNC grinding of ceramic chips are introduced. In the process of ceramic chip CNC grinding, the dimension of the chips tends to get larger and the dimensional error to exceed the tolerance as the number of the chips increases which are machined on the same part program. There are many factors leading to the occurrence of the error and the law of error variation is very complicated. With the introduced intelligent self-learning error compensation technique, the CNC system can improve the control strategy to compensate the error automatically. The simulational result is also given.