龙门加工中心数控转台设计概论.doc

编号 南京航空航天大学 毕业设计 题目龙门加工中心数控转台设计 学生姓名 学号学院机电工程学院 专业机械工程及自动化 班级 指导教师 二〇一六年四月 南京航空航天大学 （学号）： 龙门加工中心数控转台设计 摘要 随着我国制造业的发展，数控转台将得到越来越广泛的应用，扩大加工范围，提高生产率。近年来组装数控转台将大大的增长。预计在未来几年，虽然一些行业产能过剩，宏观调控的影响，继续保持一个相对较低的行业的景气度，装备制造业的部分预计将保持较高的增长率，尤其是那些对国家产业政策鼓励装备工业的振兴和发展。作为一个主要的机械设备制造，通用机床将在约15%，平均每年20%的速度稳步增长。 本论文设计龙门加工中心数控转台，通过对数控转台的基本原理的研究，结合数值控制，电机传动，蜗杆传动等知识，设计了一种数控转台。为了提高数控转台的精密度，本设计采用蜗轮蜗杆传动方式可以大大提高承载能力，和间隙调整蜗杆定位精度的实现。 关键词：加工中心，数控，传动，结构设计 Design of NC rotary table for machining center in Longmen Abstract With the development of Chinas manufacturing industry, the rotating positioning table will be used more widely, expand the range of processing, improve productivity. Assembly of rotary positioning in recent years will greatly increase. Expected in the next few years, although excess production capacity in some industries, the impact of macro-control, continue to maintain a relatively low industry boom, part of the equipment manufacturing industry is expected to will remain relatively high growth rate, especially those of the national industrial policy to encourage industrial equipment vibration Xinghe development. As a mechanical equipment manufacturing, general machine tools will be about 15%, an average annual rate of 20% growth. The design of Longmen machining center CNC turntable, through research on basic principle of NC rotary table, combined with numerical control, motor drive, worm drive and other knowledge, the design of a CNC turntable. In order to improve the precision of rotary positioning, the design of worm gear transmission can greatly improve the bearing capacity, and the clearance adjustment of the positioning accuracy of the worm. Key words: Machining Center, CNC, transmission, structure design. Key Words：NC machining; NC verification; Machining environment; Help files 第一章引言 ………………………- 1 - 1.1 数控技术简介 ………………………- 1 - 1.2 数控设备的发展现状和趋势 ………………………- 2 - 1.2.1 我国数控设备的发展现状 ………………………- 2 - 1.2.2 数控设备的发展趋势 ………………………- 2 - 1.3 数控工作台的研究 ………………………- 3 - 1.4 数控转台的研究 ………………………- 4 -