Finite Element Analysis of CNC Machine Tool
数控机床主轴系统热特性有限元分析

摘要

随着工业技术的发展，加工速度和质量都有很大程度的提高，主轴是在数控机床的重要部件之一，它直接影响着机器设备的工作性能以及整个机器设备和人身安全，而热变形又会影响零件之间以及零部件间的运动精度、使用寿命等，因此，对主轴系统进行热特性分析具有重要意义。本文以数控机床主轴系统为研究对象做详细地设计计算。通过有限元方法来研究主轴系统热特性，然后对主轴系统热特性分析计算，利用ANSYN软件对其进行网格划分并计算了主轴的热变形、轴向力和径向压力，最后对主轴系统热特性有限元分析与实验验证。

Abstract

with the development of industrial technology, processing speed and quality are greatly improved, the spindle is one of the important parts in CNC machine tools, it directly affects the performance of machinery and equipment and personal safety, and thermal deformation will affect the movement between parts and parts between accuracy, service life, etc., therefore, the thermal characteristics analysis of the spindle system is of great significance. This paper designs the spindle system of CNC machine tool. The thermal characteristics of the spindle system are studied, and we grid the ANSYN software and calculate the thermal deformation, axial force and radial pressure, and verify the results.