摘要
以某数控车床主轴箱为对象,研究了主轴箱的热态特性及其对机床性能的影响.在确定有限元分析所需参数的基础上,建立了主轴箱有限元分析模型,仿真计算了主轴箱的稳态温度场分布情况以及主轴箱热平衡时间,并利用热和结构耦合技术仿真计算了主轴箱在热和结构耦合作用下的温度场及热变形,分析确定了主轴部件和主轴箱的热变形趋势.通过分析可知热的不对称将对机床的加工性能产生影响,研究工作为主轴箱的优化设计和热误差补偿奠定了基础.
The effect of thermal properties on performance was determined for the headstock of a CNC lathe.Based on the factors needed for finite element analysis（FEA）,an FEA model of the headstock was established,with the constant temperature field distribution and thermal equilibrium time of the headstock simulated and calculated.Under conditions of heat and structure load,the temperature field and thermal deformation of the headstock were calculated using a thermal and structure coupling technique,and heat distortion trends of the spindle assembly and headstock were analyzed.Results indicated that hot asymmetry affected machine processing performance and provide a foundation for optimization design of spindle assembly and thermal error compensation.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第4期571-574,共4页
Journal of Northeastern University(Natural Science)
基金
"十一五"科技重大专项(2009ZX04001-053)
关键词
稳态热分析
瞬态热分析
耦合分析
温度场
有限元分析
constant heat analysis
transient thermal analysis
coupling analysis
temperature field
finite element analysis（FEA）
