机械5

摘要 可编程控制器(PLC)作为控制系统的核心装置，功能强大、性能稳定可靠。在现代工业自动化生产中得到了广泛的应用。取得了理想的控制效果。 X62W型万能铣床是目前国内生产的结构比较完善，通用性能强，应用比较广泛的一种典型铣床。主要用于加工平面，斜面，沟槽和成形面以及螺旋面的加工。本机床刚性好，生产效率高，工艺范围广。但它的电气控制部分大多数还是采用传统的继电器控制，继电器、接触器是一些电磁开关。由励磁线圈、铁心磁路、触点等部件组成。通过继电器接触器等其它控制元件的线路连接，可以实现一定的控制逻辑，从而实现设备的各种操作控制。 本以X62W万能铣床为背景，对其电气控制系统进行PLC改造，理论与实践相结合，详细阐述了可编程控制器PLC技术在X62W万能铣床控制系统中的应用。论在程序设计之前，首先对现有铣床控制系统进行电路分析，了解其基本控制原理。而后对控制方案的论证与设计；本文利用三菱公司生产的FX2N系列PLC对其控制系统进行改造，最后利用其编程软件GX WORKS2软件进行程序的编写。 关键词：可编程控制器，万能铣床，电气控制 Abstract Programmable logic co
ntroller(PLC), as the core device of the co
ntrol system, is powerful, stable a
nd reliable. It has bee
nwidely applied i
n moder
n i
ndustrial automatio
n productio
n. The ideal co
ntrol effect has bee
n obtai
ned. X62W u
niversal milli
ng machi
ne is a typical milli
ng machi
newith perfect structure, stro
ngversatility a
ndwide applicatio
n. It is mai
nly used for machi
ni
ng pla
ne, i
ncli
ned surface, groove a
nd formi
ng surface a
nd spiral surface. This machi
ne tool has good rigidity, high productio
n efficie
ncy a
ndwide tech
nological scope. But most of its electrical co
ntrol part is co
ntrolled by traditio
nal relay, a
nd relay a
nd co
ntactor are some electromag
netic switches. It is composed of excitatio
n coil, core mag
netic circuit, co
ntact a
nd other compo
ne
nts. By co
n
necti
ng the circuit of relay co
ntactor a
nd other co
ntrol eleme
nts, a certai
n co
ntrol logic ca
n be realized, so that all ki
nds of operatio
n co
ntrol of the equipme
nt ca
n be realized. I
n this paper, the X62W milli
ng machi
ne is take
n as the backgrou
nd, the electrical co
ntrol system is modified by PLC, a
nd the applicatio
n of PLC tech
nology i
n the X62W milli
ng machi
ne co
ntrol system is expou
nded i
n detail. Before programmi
ng,we a
nalyze the existi
ng milli
ng machi
ne co
ntrol system a
nd u
ndersta
nd its basic co
ntrol pri
nciple. The
n the co
ntrol scheme is demo
nstrated a
nd desig
ned. I
n this paper, the FX2N series PLC produced by Mitsubishi Co is used to remould its co
ntrol system. Fi
nally, the programmi
ng software GX WORKS2 software is used towrite the program. Keywords: programmable co
ntroller, u
niversal milli
ng machi
ne, electrical co
ntrol 目录 摘要I Abstract II 1绪论- 1- 1.1课题目的及意义- 1- 1.2可编程控制器国内外的发展[1]- 1- 1.2.1国外PLC的发展- 1- 1.2.2国内PLC的发展- 2- 1.3 PLC的发展趋势- 3- 1.4本文的设计任务- 3- 2 X62W万能铣床结构原理和硬件设计- 4- 2.1 X62W万能铣床结构组成及控制系统要求- 4- 2.1.1 X62W万能铣床的结构组成- 4- 2.1.2 X62W万能铣床控制系统的要求- 5- 2.2 X62W万能铣床系统硬件设计- 6- 2.3本章小结- 8- 3 X62W万能铣床传统继电器控制系统设计- 9- 3.1主电路设计- 9- 3.2.1主电路分析- 9- 3.2控制电路设计- 10- 3.2.1主轴电机M1的控制- 10- 3.2.2进给电动机M2的控制- 12- 3.2.3冷却泵电动机及照明电路的控制- 15- 3.3本章小结- 15- 4 X62W万能铣床PLC控制系统的硬件设计- 16- 4.1 PLC控制系统结构组成- 16- 4.2 PLC和I/O扩展模块的选型- 16- 4.3 PLC I/0的分配- 16- 4.4系统电气控制接线图设计- 17- 4.5本章小结- 19- 5系统软件设计- 20- 5.1三菱GX WORKS2编程软件简介- 20- 5.2 X62W万能铣床PLC程序设计- 21- 5.3本章小结- 25- 6 X62W万能铣床主轴零件的三维建模- 26- 6.1 Solidworks软件简介- 26- 6.2零件建模- 28- 6.3本章小结- 30- 总结- 31- 致谢- 32- 参考文献- 33-