车削中心主轴系统热特性有限元分析的研究

摘要

以精密车削中心主轴系统为研究对象,将有限元技术应用于其主轴系统的热特性研究,在机床热分析理论基础上,计算了液体动静压轴承内外壁的温度和主轴箱体的温度,建立并分析了主轴系统的稳态温度场和主轴的变形情况,为系统热补偿提供了理论依据.%The spindle system of turning center is researched, and FEA is applied on the thermal characteristic analysis of its spindle system. Based on the theoretics of machine thermal analysis, FEM is used to calculate the temperature inside and outside wall of the hydraulic dynamic-static bearing and the head-stock. It not only builds the steady thermal field of the spindle system is, but also analyzes the thermal deformation of the spindle. They provide the data for the thermal compensation of the spindle system.