基于滑模内模控制的珩磨恒速进给系统控制研究  

Research on constant speed feed system ofhoning based on sliding mode internal model control

作　　者：王双[1,2] 龚俊 李奇军[1,2] Wang Shuang;Gong Jun;Li Qijun(Key Laboratory of Digital Manufacturing Technology and Application,Ministry of Education,Lanzhou University of Technology,Gansu Lanzhou,730050,China;School of Mechanical and Electrical Engineering,Lanzhou University of Technology,Gansu Lanzhou,730050,China)

机构地区：[1]兰州理工大学数字制造技术与应用省部共建教育局重点实验室,甘肃兰州730050 [2]兰州理工大学机电工程学院,甘肃兰州730050

出　　处：《机械设计与制造工程》2023年第7期31-36,共6页Machine Design and Manufacturing Engineering

基　　金：国家科技重大专项(2010ZX040001-181)。

摘　　要：针对传统PI控制策略下电机驱动珩磨恒速进给系统波动大、精度低的问题,提出一种新型的控制方法——滑模内模控制。基于进给系统结构,将对油石的恒速进给控制转换为对电机的恒转速控制,并对其系统进行仿真建模与实验验证。结果表明,基于滑模内模的控制方法比基于传统PI的控制方法响应速度快,转速波动和误差均较小,且没有超调量。传统PI控制策略下的转速和误差响应随着反向负载的增大变得不稳定,需要较长时间才能恢复,因此选用滑模内模控制策略更能满足珩磨恒速进给控制系统的要求。Aiming at the problems of large fluctuation and low accuracy of the constant speed feed system of motor-driven honing under the traditional PI control strategy,a new control method-sliding mode internal model control is proposed.Based on the feed system structure,the constant speed feed control of the oil stone is converted into constant speed control of the motor,and the system is simulated,modeled,and experimentally verified.The results show that the control method based on sliding mode internal model has faster response speed,smaller speed fluctuations and errors,and no overshoot compared to the traditional PI control method.The speed and error response under the traditional PI control strategy become unstable with the increase of reverse load,and it takes a long time to recover.Therefore,choosing the sliding mode internal model control strategy can better meet the requirements of the constant speed feed control system for honing.

关 键 词：珩磨 恒速进给 电机 恒转速控制 滑模内模控制 

分 类 号：TG589[金属学及工艺—金属切削加工及机床]