数控机床整机静刚度仿真分析及结构优化  

Simulation and Optimization for Static Stiffness of NC Machine Tool

作　　者：孔令叶[1] 

机构地区：[1]广东工贸职业技术学院

出　　处：《工具技术》2016年第5期37-40,共4页Tool Engineering

基　　金：国家自然科学基金(51575112)

摘　　要：在考虑结合面建模的前提下,对一台旧型号数控机床x、y、z向的静刚度进行仿真分析,并通过试验验证了仿真方法的正确性。根据仿真结果,对旧型号机床的结构提出了四点优化方法,并通过仿真分析验证了优化的有效性。最后制造出新型号机床,并对其静刚度进行了试验测量。结果表明,与旧型号机床对比,新型号机床x、y、z向的静刚度分别提高了20.76%、17.14%、13.59%。采用该方法可经济高效地提高机床的静刚度,具有重要的工程实用价值。The static stiffness of an old model machine tool along x - ,y- ,and z- directions are finite element simulated by considering the joint modeling method, and the simulation results are verified by experimental tests. According to the simulation result,four structure optimization methods are proposed,and the effectiveness of these methods are verified by simulation. A new model machine tool is manufactured and the static stiffness of this machine tool is tested. The resuhs show that the static stiffness of the new model machine tool improved by 20, 76% ,17.14% and 13.59% respectively. The method can improve the static stiffness of a machine tool economically and efficiently which is very useful for practical engineering.

关 键 词：数控机床 静刚度 仿真分析 结构优化 结合面建模 

分 类 号：TG502[金属学及工艺—金属切削加工及机床] TH161[机械工程—机械制造及自动化]