基于分时模糊控制法的单丝双连杆应力槽线切割加工控制研究  

Research on Control of Stress Groove Cutting of Double Connecting Rods with Single Wire Based on Time-sharing Fuzzy Control

作　　者：黎毅锋 刘智[2,3] 刘俊 陈廷艳[2] 欧幸福 LI Yi-feng;LIU Zhi;LIU Jun;CHEN Ting-yan;OU Xing-fu(Foshan Branch,Guangdong Institute of Special Equipment Inspection and Research,Foshan 528000,China;School of Intelligent Manufacturing,Foshan Polytechnic,Foshan 528137,China;School of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China)

机构地区：[1]广东省特种设备检测研究院佛山检测院,广东佛山528000 [2]佛山职业技术学院智能制造学院,广东佛山528137 [3]中南大学机电工程学院,湖南长沙410083

出　　处：《控制工程》2022年第12期2250-2256,2264,共8页Control Engineering of China

基　　金：国家自然科学基金资助项目(50805026);广东省部产学研结合项目(2010B090400381);广东省普通高校青年创新人才项目(2019GKQNCX008)。

摘　　要：研发的单丝双连杆应力槽线切割机床是新一代免穿丝型电火花线切割机床。该机床采用一根电极丝同时对两根连杆的大头孔内表面双侧应力槽进行切割加工,所以伺服控制方法的研究非常关键。在分析双连杆应力槽线切割加工过程的基础上,提出了分时模糊控制法,确保机床能够对两根连杆的应力槽同时加工,提高生产效率。实验表明,该机床能够在20 s内同时完成两根连杆的大头孔内表面双侧应力槽切割加工。与连杆应力槽双向同步电火花线切割机床相比,使用分时模糊控制法后该机床的加工时间更短,槽宽与槽深的控制更精确,实现了预期目标。The machining tool for stress grooves of double connecting rods with single wire developed in this paper is a new type of wire-free electrical discharge machining(EDM)tool.This machining tool use an electrode wire to cut stress grooves on both sides of the inner surface of the large-end holes of the two connecting rods simultaneously,so the research of servo control method is crucial.Based on the analysis of the cutting process,a time-sharing fuzzy control method is proposed to ensure that the machining tool can cut the stress grooves of the two connecting rods simultaneously,and improve the production efficiency.The experimental results show that the machining tool can complete the double-sided stress groove cutting on the inner surface of the large-end holes of the two connecting rods simultaneously within 20 s.Compared with two-way synchronous wire EDM tool for stress grooves of connecting rods,the machining tool with time-sharing fuzzy control takes less time to complete the stress groove cutting,and the groove width and groove depth are more accurate,which achieves the expected goal.

关 键 词：单丝双连杆应力槽线切割机床 应力槽 双连杆应力槽线切割加工 分时模糊控制法 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]