摘要:现代工业的迅速发展，新技术、新工艺的充分应用，社会生产力又跃上了一个新水平，加工中心在各种加工场合使用的越来越普遍，技术也越来越成熟。由于生产的实际以及市场竞争的需要，对加工中心的技术要求也越来越高。
主轴箱是加工中心的重要部件，是用于布置机床工作主轴及其传动零件和相应的附加机构的。主轴箱多采用多级齿轮传动，通过一定的传动系统，经主轴箱内各个位置上的传动齿轮和传动轴，最后把运动传到主轴上，使主轴获得规定的转速和方向。随着电气传动技术的迅速发展和日趋完善，加工中心主轴箱传动系统的机械结构应简化，取消传统的带轮传动和齿轮传动而使用电动机直接驱动主轴结构，即电主轴。所以此次提出加工中心的主轴箱改进设计。8290
关键词：加工中心；齿轮；电主轴
Improved design of machining center spindle box
Abstract: With the rapid development of modern industry and the application of new technology, the social productive force has arrived at a new level. Machining center which is used in various processing applications is becoming more and more popular and its technology is more and more mature. Because of the actual production and the need of market competition, technology requirements of machining center are also getting higher and higher.
The spindle box is an important part of machining center, it is used to assign working spindle of machine tool, the transmission parts and additional mechanism accordingly. Most spindle boxes adopt multistage gear transmission, through the transmission gear and drive shaft of the transmission system, it spreads the movement to the spindle, making the spindle get speed and the direction of provisions. With the rapid development of electric drive technology and the mechanical transmission system structure is becoming more perfect, the spindle box processing center should be simplified, cancelling the traditional pulley and gear transmission and using motor drive spindle directly，that is electric spindle. So I put forward an idea about the improved design of machining center spindle box.
Key Words：Machining center；Gear；Electric spindle
目录
1 绪论    1
1.1 数控机床的基本概念    1
1.2 数控机床的发展历程    1
1.2.1 加工中心特点    1
1.3 数控机床的发展趋势    2
1.4 改进方案说明    3
2主轴箱总体方案设计    3
2.1 机座和箱体概述    3
2.2 机座和箱体的截面形状及肋板布置    4
2.3 机座和箱体设计概要    6
2.4 机床主传动系统设计    7
3 电主轴    8
3.1 电主轴概述    8
3.2 电主轴工作原理    8
3.3 电主轴优点    8
4 电主轴轴的设计和计算    9
4.1 电主轴轴材料的选择    9
4.2 轴的结构设计    9
4.3 轴的校核    9
4.4 电主轴装配注意问题    11
4.4.1 轴承的安装    11
4.4.2 轴承的使用和保管    15
4.5 电主轴过盈联结装置的设计    15
5 电主轴轴承技术    16
5.1 电主轴轴承的选择    16
5.2轴承的工况分析    16
5.3 电主轴轴承的校核计算    17
5.3.1 滚动轴承寿命计算    17
5.3.2 电主轴轴承静载荷及极限转速    18
5.4 电主轴轴承的组合设计    19
5.4.1 支承端结构形式    19
5.4.2 轴承的配合    19 加工中心的主轴箱改进设计+CAD图纸:http://www.youerw.com/jixie/lunwen_6558.html