数控车床主轴部件及其主轴箱热特性有限元分析.pdf

第32 卷第4期 东 北 大 学 学 报 ( 自 然 科 学 版 ) Vol132, No. 4 2 0 1 1 年 4 月 Journal of Northeastern U ni ersity( Natural Science) Apr. 2 0 1 1 1 2 张耀满, 刘启伟 ( 1. , 110819; 2. ( ) , 110042) : , # , , , , , # # : ; ; ; ; : T G 502. 14 : A : 1005-3026( 20 11) 04-0571-04 Finite Element Analysis of Thermal Characteristics of the Spindle Assembly and Headstock for a Numerical Control Lathe 1 2 ZH A N G Yao-man , LI U Qi-w ei ( 1. School of Mechanical Engineering Automat ion, Northeastern Uni ersity, Shenyang 110819, China; 2. Design Research Institute, Shenyang Machine T ool ( Group ) Co . Ltd. , Sheny ang 110042, China. Corresponding author : ZHA NG Yao-man, E-mail: zhymlxl @ 163. com) Abstract: 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, w ith 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 w ere calculated using a thermal and structure coupling technique, and heat distortion trends of the spindle assembly and headstock w ere analyzed. Results indicated that hot asymmetry affected machine processing performance and pro ide a foundation for optimization design of spindle assembly and thermal error compensation. Key words: constant heat analysis; transient thermal analysis; c