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文档包括:

Word版说明书1份，共88页，约37000字
外文翻译一份

CAD版本图纸，共3张

数控铣床主轴系统及Z轴进给系统设计
[摘要]本文介绍了立式数控铣床的一些基本概况，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。立式数控铣床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数控铣床主传动系统的设计过程，该立式数控铣床主轴变速是靠带轮进行的，这种传动方式多见于数控车床，它可避免齿轮传动时引起的振动和噪声，是啮合传动中唯一一种不需要润滑的传动方式。在啮合传动中，它的结构最简单，制造最容易，最经济，弹性缓冲的能力最强，重量轻，两轴可以任意布置，噪声低。它的带由专业厂商生产，带轮自行设计制造，它在远距离、多轴传动时比较经济。文中介绍了立式数控铣床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、轴承的选用及其润滑、关键零件的校核、以及主轴电动机的控制等设计过程。
[关键词]数控机床；立式数控铣床；主传动系统；主轴组件；轴承；主轴电动机

CNC milling machine and spindle system z-axis feed system design
Abstract： this text introduces the vertical CNC milling machine of some of the basic situation, this paper describes the main drive system of machine tool of principle and type, analyzes the mechanism of all kinds of transmission scheme. Vertical CNC milling machine main transmission system including the spindle motor, main shaft transmission system and spindle component of three parts. This paper introduces the vertical CNC milling machine main transmission system design process, the vertical axis CNC milling machine speed is to rely on the pulleys, the transmission way in numerical control lathe, it can avoid caused gear transmission of the vibration and noise, meshing transmission in the only need not lubrication transmission mode. In the meshing transmission, its structure is the most simple, make the most easy, the most economical, the most powerful of the elastic cushion, light weight, two axis can be arbitrary decorate, low noise. It brought from specialized manufacturer production, pulleys to design manufacturing, it in the distance, much shaft driving when more economic. This paper introduces the main transmission system vertical CNC milling machine all kinds of transmission scheme comparison, the advantages and disadvantages of the main transmission scheme selection and sure, main transmission variable speed drive system design calculation, spindle component design, the choice of bearing the lubrication, key parts of checking, and spindle motor control, such as design process.
Key words：Numerical control machine tools; Vertical CNC milling machine; Main transmission system; Spindle component; Bearing; Spindle motor

目 录
引言 4
第一章   绪 论 6
1.1  概述 6
1.1.1数控机床简介 6
1.1.2数控机床组成和特点 7
1.1.3数控机床分类 10
1.2数控机床的发展 15
1.2.1 国内外发展趋势 15
1.2.2主轴部件发展趋势 19
1.2.3 向开放式、基于PC的第六代方向发展 20
1.2.4向高速化、高精度化和智能化方向发展 20
第二章  数控铣床主轴系统设计 22
2.1 主轴系统方案确定 23
2.1.1数控铣床主轴系统简介 23
2.1.2数控铣床主轴系统的要求 24
2.1.3主轴传动方案的选择 24
2.1.4主轴组件总体方案 26
2.2 主轴系统组件的设计 27
2.2.1主轴电机选择 28
2.2.2 主轴结构设计 30
2.2.3主轴组件支承设计 42
2.2.4同步带设计 46
2.2.5主轴组件的润滑与密封 50
2.2.6 键的设计 53
第三章  数控铣床Z轴进给系统设计 55
3.1  Z向进给电机选用 55
3.2  联轴器的设计 56
3.3  Z向进给组件设计 56
3.3.1切削力的计算 56
3.3.2滚珠丝杠副的设计计算 57
3.3.3 轴承设计验算 60
3.3.4 丝杠拉压振动和扭转振动的固有频率验算 63
第四章  总 结 65
参考文献 67
致  谢 68
外文科技资料翻译 88