文档介绍：摘要
此次课程设计中,设计任务是将一台XA6132普通升降台卧式铣床,改造成三坐标数控铣床。采用滚珠丝杠作为传动装置。共有三根丝杠分别在纵向,横向工作台和垂直向升降台上。驱动元件为步进电机。采用PLC控制、存储扩展电路和I/O接口电路、伺服电机驱动电路等几部分组成。数控系统的核心是PLC,其它装置均在微机的控制下进行工作。系统的功能和系统中所用的微机直接相关。数控系统对微机的要求是多方面的,但主要指标是字长和速度,字长不仅影响系统的最大加工尺寸,而且影响加工的精度和运算精度。
结合设计的工作量和时间限制,机械部分主要解决一个坐标轴,完成机械结构设计,零件及参数的选择和部分计算过程;电气和微机部分主要有硬件原理图和程序框图,
此次课程设计中,我熟悉了机电一体化设计的基本过程,并把各门所学的知识融会贯通形成一个有机的整体,为以后的设计工作打下了良好的基础,同时我也深深的体会到了不足之处,准备在今后的工作中不断学习,不断实践。
关键词:XA6132普通升降台卧式铣床, PLC, 数控,改造
Abstract
In this time graduation design, the design mission is to reform a set of mon working panel lifter lying type miller into the three coordinate number controlling miller,adopting the ball guide screw as the transmission device .There are three silk bar different totally at lengthways, horizontal work pedestal and perpendicularity to ascend and descend on the stage. The ponent is the stepping electrical engineering. The tiny machine number controls the system from the CPU, save to expand the electric circuit and I/ O connects a people's electric circuit, servo electrical engineering to drive the electric circuit etc. several parts constitute. The number controls the core of the system is a tiny machine, the other equips to all carry on the work under the control of the tiny machine. The tiny machine use is directly related in the function and systems of the system. The number controls the request of system to tiny machine is various, but the main index sign is a word to grow and speed, the word is long not only affect the system biggest to process the size, and the accuracy that influence process and operation accuracy. What this design adoption is machines MCS-51s, and expand 2 slices of 2764 chips, a slice of 6264 chips, 3 slices of 8155 programmable proceed together to constitute the control system .
Because the work of graduation project and restriction of time, the mechanical part dissects three coordinate axes mainly, finishes mechanical structural design, the choices of the part and parameter, putational