1、） I 摘 要 数控技术和数控装备是制造工业现代化的基础， 这个基础是否牢固直接影响 到一个国家的经济发展和综合国力，关系到国家的战略地位。立式加工中心主传 动系统是用来实现机床主运动的传动系统。包括电动机、传动系统和主轴部件。 本文介绍了立式加工中心的一些基本概况， 简述了机床主传动系统方面的原 理和类型，分析了各种传动方案的机理。立式加工中心主传动系统包括了主轴电 动机、主轴传动系统和主轴组件三部分组成。本文详细介绍了立式加工中心主传 动系统的设计过程，该立式加工中心选用圆弧齿同步带传动，该种传动方式的特 点在于它能使主传动系统的结构比较简单，而且避免了齿轮传动的振动和噪声。 文中介绍了立
2、式加工中心主传动系统各种传动方案优缺点的比较、 主传动方案的 选择和确定、主传动变速系统的设计计算、主轴组件的设计以及关键零件的校核 等设计过程。 关键词：数控机床；立式加工中心；主传动系统；主轴组件 ） II Abstract The numerical control technology and the numerical control equipment are the factory industry modernization foundations, does this foundation whether reliable immediate influence to a c
3、ountrys economic development and the comprehensive national strength, relate the country the strategic position. Machining Center tool master drive system is uses for to realize the engine bed main movement transmission system.Including electric motor, transmission system and spindle unit. Some basi
4、c concepts and the general knowledge of the vertical machining center were introduced in this paper. Brief description the principle and types of the main drive system, analysis mechanism of the transmission project. The spindle drive system of vertical machining center, including spindle drive moto
5、r, transmission and spindle subassembly. The design process of vertical machining center main drive system were introduced in detail in this paper. The vertical machining center used arc tooth timing belt drive, the species transmission features is that it enables the structure of main drive system
6、is relatively simple, and to avoid the noise and vibration. This paper also detailed compare of the program merit and demerit, detailed the program options and determines of vertical machining center spindle drive system, the design of main gearshift system and spindle subassembly. Key Words: CNC; Vertical machining center; Main drive system; Spindle subassembly ） III 目 录 1 绪论 1 1.1 课题背景及目的. 1 1.2 数控机床的基本概况. 1 1.2.1 简述数控机床. 1 1.2.2 加工中心的基本概念和分类. 2 1.3 立式车削中心的概述 4 2 立式车削中心主传动系统方案的确定 6 2.1 立式车削
