【摘要】 针对数控机床加工末端-主轴的热伸长现象进行了详细阐述，并对其检测及消除、补偿的方法进行了探讨研究，总结了现有的几种检测及补偿方法，对现场机床进行了测试并给出了测试结果，对恒温电主轴、恒温机床做了简要阐述，为高精度数控机床的设计提供了方法和思路。更多还原

【Abstract】 This paper describes the thermal elongation phenomenon of CNC machine tool spindle. Its detection, elimination and compensation methods are discussed. Several existing detection and compensation methods are summarized. The field machine tool is tested and the test results are given, it provides methods and ideas for the design of CNC machine tool.更多还原