大型旋风铣床铣头系统热特性仿真分析  

The Thermal Characteristics Simulation Analysis of Mill Head System of Large-sized Whirling Machine Tool

作　　者：金娜[1] 王禹林[1] 冯虎田[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《组合机床与自动化加工技术》2011年第11期34-37,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家科技重大专项(2009ZX04001-171-02;2011ZX04003-021-02);国家自然科学基金(51105208);中国博士后科学基金资助项目(20110491426);江苏省创新学者攀登项目(BK2008050);江苏省博士后科学基金(1101082C)

摘　　要：在多种热源的作用下,数控铣床产生热变形,对工件的加工精度产生很大的影响。利用Solid-Works软件对大型旋风铣床铣头系统进行三维建模,运用有限元分析软件ANSYS对热稳定状态下铣头系统的温升及热变形进行分析,得出了铣头系统温度及变形分布情况,并与风冷条件下的温升和热变形进行比较。仿真结果表明,当转速为900r/min时,强风冷使最高温升减小了20.28%,最大热变形减小了12.42%,为数控铣床结构改进和冷却系统的设计提供了理论依据。Many kinds of the heat sources cause thermal deformation in CNC milling machines,which influences the machining accuracy of the workpiece.three-dimensional model of the mill head system of the whirling machine tool is built up by the software SolidWorks.The temperature field and the thermal deformation of the mill heat system in thermal equilibrium state are analyzed by the finite element software ANSYS.The temperature field and the thermal deformation distributions are given,the result is compared with the temperature field and the thermal deformation distributions on condition of air cooling.Simulation result indicated that the maximum temperature is reduced by 20.28 %,the maximum deformation is reduced by 12.42 %,This research provides the theoretical fundamentals for the optimization design and cooling system design of CNC machines.

关 键 词：热特性 旋风铣床 铣头系统 有限元 

分 类 号：TH132.1[机械工程—机械制造及自动化]