摘 要本文阐述了车床电主轴的进展历史、现状以与趋势,并介绍了电主轴的工作原理与关键技术。然后,确定了合理的电主轴总体结构,分别对电主轴的电机、编码器、转子、定子和冷却系统等各零部件作了设计,产生了装配图、零件图与设计说明书等设计文档。最后,对电主轴的旋转轴和轴承进行了详细的分析和校核,计算表明,该电主轴设计符合要求。关键词:车床;电主轴;主轴;轴承AbstractThis paper describes the history, status and trends of lathe electrical spindle development, and also introduce the working principle and key technology of electrical spindle. Then, the reasonable structure of the electrical spindle is determined.The structure of main components is designed, such as axis, encoders, rotor, stator and cooling systems. The assembly drawings, part drawings and design specifications and other design documents is generated. Finally, the detailed analysis and verification of the axis and bearing are made. The calculation result shows that the design of electrical spindle meets the requirements.Key words:lathe;electrical spindle;spindle;bearing目 录第 1 章绪论………………………………………………………………………………….. ……………………………….11.1 选题的目的和意义………………………………………………………………………………….. ……………………………11.2 数控车床电主轴的国外的讨论现状和进展趋势……………………………………………………………….11.3 本课题主要讨论容……………………………………………………………………………….. …………………………..4第 2 章 数控车床电主轴的介绍………………………………………………………………………………….. …52.1 车床电主轴的工作原理……………………………………………………………………………….. ………………………52.2 数控车床电主轴的特征……………………………………………………………………………….. ………………………5第 3 章 车床电主轴结构设计……………………………………………………………………………….. ………73.1 电主轴结构图……………...