摘  要
    当今世界电子技术迅速发展，微处理器、微型计算机在各技术领域得到了广泛应用，对各领域技术的发展起到了极大的推动作用。新一代的CNC系统这类典型机电一体化产品正朝着高性能、智能化、系统化以及轻量、微型化方向发展。立式铣床与卧式铣床相比较，主要区别是主轴垂直布置，除了主轴布置不同以外，工作台可以上下升降， 立式铣床用的铣刀相对灵活一些，适用范围较广。可使用立铣刀、机夹刀盘、钻头等。机床设计符合人体工程学原理，操作方便;操作面板均使用形象化符号设计，简单直观。　
   装备工业的技术水平和现代化程度决定着整个国民经济的水平和现代化程度 ,数控技术及装备是发展新兴高新技术产业和尖端工业的使能技术和最基本的装备 ,又是当今先进制造技术和装备最核心的技术。数控技术是用数字信息对机械运动和工作过程进行控制的技术 ,而数控装备是以数控技术为代表的新技术对传统制造产业和新兴制造业的渗透形成的机电一体化产品 ,其技术范围覆盖很多领域。X—Y工作台的传动方式为保证一定的传动精度和平稳性以及结构的紧凑，采用滚珠丝杠螺母传动副。为提高传动刚度和消除间隙，采用有预加载荷的结构。由于工作台的运动部件重量和工作载荷不大，故选用滚动直线导轨副，从而减小工作台的摩擦系数，提高运动平稳性。
关键词：X—Y工作台，伺服电机，机床系统设计。
Abstract

The rapid development of electronic technology in today's world, a microprocessor, microcomputer technology in various fields has been widely used in various fields for the development of technology has played a great role in promoting. A new generation of CNC systems such typical mechatronics products are moving towards a high-performance, intelligent, systematic and lightweight, miniaturization direction. Vertical milling and horizontal milling machine compared to the major difference is that the vertical spindle arrangement, except for the different arrangement of the spindle, the table can be up and down, vertical milling cutter with relatively flexible, wider scope. You can use mills, floating cutter, drill and so on. Ergonomic machine design, easy to operate; use the operator panel Symbols design, simple and intuitive.
   Technology and modernization of the equipment industry determines the level and degree of modernization of the entire national economy, numerical control technology and equipment is the development of new high-tech industry and cutting-edge technology and industry enabling the most basic equipment, is nowadays advanced manufacturing technology and equipment core technology. CNC technology is a mechanical movement with digital information and work process control technology, CNC numerical control equipment is new technology, mechatronics technology represents for traditional manufacturing industries and emerging manufacturing Penetration of its technology coverage many areas. X-Y table drive way to guarantee a certain transmission accuracy and stability and a compact structure, the use of the ball screw nut transmission pair. To improve the transmission stiffness and eliminate the gap, there is the use of pre-load structure. Due

to the weight of the moving parts of the table and the work load is not big, so the selection of linear guides, thereby reducing the coefficient of friction of the table to improve the movement smooth.
Keywords:  X-Y table, servo motors, machine tool design systems.
目  录
前言 1
第一章 总体方案设计 2
1.1 总体方案确定 4
第二章 机电系统设计 5
2.1设计任务 5
2.2机电系统总体方案的确定 5
第三章 绘制装配图 15
第四章 电气原理图设计 15
4.1典型数控工作台电气原理图 15
4.2单片机的选择 15
4.3外部程序存储器的扩展 16
4.4外部数据存储器的扩展 16
4.5 I/O口扩展电路 16
4.6 显示器接口设计 17
4.7 键盘接口电路设计 17
5.8 步进电机的接口电路设计 17
第五章 控制系统设计 18
5.1 控制系统硬件设计 18
5.2 CPU接口设计 19
5.3 驱动系统 20
第六章 控制系统软件设计 22
6.1 总体方案 22
6.2主流程图 23
6.3  X轴电机点动正转程序流程图 24
第七章 结论 27
参考文献 28
致  谢 29