毕业设计（论文）-XKA5750数铣床主传动系统设计（全套图纸）.doc

单位代码 学　号 分 类 号 T 密 级 毕业设计说明书 院（系）名称 专业名称 学生姓名 指导教师 20年XKA5750数控铣床主传动系统设计 摘要 本文介绍了XKA5750立式数控铣床的一些基本情况，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。XKA5750立式数控铣床主传动系统包括主轴电动机、主轴传动系统和主轴组件三部分。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箱是靠齿轮进行传动的，传动形式采用集中式传动，主轴变速系统采用多联滑移齿轮变速。齿轮传动具有传动效率高，结构紧凑，工作可靠、寿命长，传动比准确等优点。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、轴承的选用基润滑、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：数控铣床，主传动系统，主轴组件 全套图纸，加153893706 The main drive system design of XKA5750 CNC milling machine Author:Han Liguo Tutor:Yan Cunfu Abstract This paper introduces some basic situations of the XKA5750 vertical CNC milling machine, briefly discusses the principles and types about spindle driving system of machine tool and analyzes the mechanism of various transmission scheme. The main driving system of XKA5750 CNC milling machine includes three parts that is spindle motor, spindle driving system and spindle components. This paper describes the main driving system design process of the XKA5750 CNC milling machine in detail. The spindle gearbox of this vertical CNC milling machine is driven by gear, and the driving mode adopts a centralized transmission, the spindle speed system uses multi sliding gear transmission. The advantages of gear drive are high transmission efficiency, compact structure, reliable, long life and accurate transmission ratio and so on. This paper compares the advantages and disadvantages of the various transmission scheme for vertical CNC milling machine system, introduces the selection and identification of main drive program, gearshift design and calculation of the main drive, the design of the spindle components, the selection and lubrication of the bearing, verification of critical parts, and the control of spindle motor, and so on. Key words：CNC milling machine, spindle driving system, spindle components 目 录 1 绪 论 1 1.1我国数控机床的发展现状 1 1.2课题提出的意义和目的 2 2 XKA5750数控铣床主传动系统方案的确定 3 2.1数控铣床主传动系统简介 3 2.2 对数控铣床主传动系统的要求 3 2.3 主传动的类型及方案选择 4 3