一种基于数控复合轧环机的新型控制方法  

A New Control Method for NC Combined Ring Rolling Machine

作　　者：陈步远 朱春东[1,2] 孙少东 CHEN Bu-yuan;ZHU Chun-dong;SUN Shao-dong(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China;Industrial Research Institute of Suizhou Wuhan University of Technology,Suizhou 441300,China)

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070 [2]随州武汉理工大学工业研究院,随州441300

出　　处：《武汉理工大学学报》2020年第6期85-89,共5页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(51875427).

摘　　要：复合轧制是用于成形大型厚壁深槽类环件的关键技术。基于环件复合轧制工艺,提出了复合轧环机以环件外径为反馈参数的新型控制方法,并结合复合热轧制过程中环与辊之间的关系,建立了环件在复合轧制过程中外径随辊移动而实时变化的数学模型。在此数学模型的基础上,推导了环件外径关于各辊位移量的表达式,并开发了新型自动控制程序,该程序已经成功应用于生产实践,实验证明用新方法生产出环件的精度从原来的0.88%提高到0.25%以内。Combined rolling is the key technology for forming large thick-walled deep groove rings.Based on the ring rolling technology,a new control method for the ring rolling machine with the outer diameter of the ring as the feedback parameter is proposed,and the relationship between the ring and the roll during the hot rolling process is established.A mathematical model of the outer diameter changing as the roller moves during the manufacturing process.Based on this mathematical model,the expressions of the outer diameters of the ring members with respect to the displacement of each roller are deduced,and a new type of automatic control program has been developed.This program has been successfully applied to production practice,and experiments have proven that the ring members are The accuracy was improved from the original 0.88%to within 0.25%.

关 键 词：复合轧环机 复合轧制 环件外径 自动控制 

分 类 号：TH162[机械工程—机械制造及自动化]