摘要
针对特殊形面的高效加工制造，开发了精密快速伺服工作台。在对系统模型进行分析的基础上，对伺服装置进行了ＰＩＤ校正，并提出和实现了修正输入法误差前馈补偿控制，理论分析表明，该控制方法可明显提高系统的精度和动态性能。对批量生产零件具有输入再现性的系统，实施该控制方法无需解析系统的精确模型，也无需占用计算机的实时运算时间，只需通过一次预实验修改输入函数即可完成建模。应用于加工实验，最大加工误差由３６μｍ降低到７μｍ。实际应用表明，该控制方法具有较大的工程实用性和明显的技术效果。
A high speed precision servo system for the machining of a kind of special parts is developed. Based on the analyse of the system, PID regulator is designed and a input revising feed forward error compensation algorithm is proposed. Theoretical analyse shows that this input-revising algorithm can improve the accuracy and the transient response of the system. In such a system as the said servo system, the input of which can be reproduced, it does not need the mathematic modle of the system to realize this algorithm. When it' is used in the said machining system, the maximum error is decreased from 36μrn to 7μm.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1996年第4期27-32,共6页
Journal of Tsinghua University(Science and Technology)
关键词
修正输入法
伺服工作台
误差补偿控制
机床
servo system
input-revising algorithm
error-compensation: control
