ADGM高速电主轴热态特性仿真分析

摘要

温度对于高速精密电主轴加工至关重要,为了一步了解ADGM高速精密电主轴的热态特性,首先分析计算了电主轴的热源和各部分传热特性,建立了电主轴整体的三维模型,并利用 ANSYS Workbench有限元软件进行稳态热特性和热-结构耦合特性分析；通过仿真分析了解了电主轴温度场的分布和温升对整个电主轴变形的影响,当电主轴未使用冷却时,热变形较大,最大变形0.12mm,而当通冷却水时,电主轴的最大变形量为0.007 mm；最后提出了改进电主轴热态特性的主要措施。%In order to understand the thermal characteristic of ADGM spindle, Calculate and analysis the heart source and the heart transfer characteristic of spindle. On this basis, the 3D model of spindle is built and the characteristic of steady state thermal and thermal-structure coupling are analyzed by ANSYS Work-bench. Understanding the temperature field distribute of spindle and the influence of temperature on the de-formation of spindle. When the spindle without using the cooling water, the bigger the maximum deforma-tion is 0. 12mm,and under the cooling water the maximum deformation is 0. 007mm. Finally put forward the main measures to improve the thermal characteristic of the spindle.