Abstract
Can programme controller control system relatively relay and control system advantage obvious one-chip computer, At present, PLC high dependability , abundant order collect extremely with their , programming method , strong function , fine performance , able to bear abominable ability of environmenting good of figure, have already become and used the most extensive industrial control equipment in the industry controlled field. The research object originally designed- metal cutting lathe , adopt PLC to control because of the above reason..
While studying this metal lathe, confirm the overall design plan of the control system at first, and then confirm the types and I/O components of PLC, and then design the electric apparatus control system principle picture of the motor,design the mechanical manual procedure of unit of metal cutting, the whole machine full-automatic procedure,fault alarm and signal show the procedure, operate the computer to debug. The control system originally designed can make the metal cutting lathe have the whole machine full-automatic , the unit is semi-automatic , three kinds of manual working ways of unit , make, start , stop in advance , stop promptly , go backwards and count etc. and operate the function promptly in advance. Have every power head , check organization and transfer to location organization online / choose the function off-line, have ultra beat protect , short out protection , overload protection , is it press function of protecting etc. to lose. Is it adopt " jump footwork " that counselor develop to design originally, every manual design plan that procedure separates each other of unit, the introduction used in the manual operation button and PLC that controls of every unit sparingly greatly is clicked.
Keyword: Control system , PLC , design plan , working way , operation function , footwork of jumping
目 录
摘 要 Ⅰ
Abstract Ⅱ
第1章 绪论 1
1.1研究本课题目的与意义 1
1.2控制系统的类型、特点及应用场合 1
1.2.1继电器控制系统 1
1.2.2计算机控制系统 1
1.2.3可编程序控制器 2
1.3主要设计研究内容 4
第2章 控制方案的论证 5
2.1 控制对象概述 5
2.1.1机床的基本结构 5
2.1.2机床的工作原理 5
2.1.3机床的主要技术参数 5
2.2控制系统设计要求 5
2.2.1 电动机拖动部分设计要求 5
2.2.1 液压拖动部分的控制要求 6
2.3控制方案的确定 7
2.3.1 电动机拖动部分 7
2.3.2 液压拖动部分 7
第3章 控制系统硬件设计 8
3.1电动机电器控制线路的设计 8
3.1.1设计要求 8
3.1.2电器元件配置 8
3.1.3电器元件型号选择 8
3.1.4原理图的设计 10
3.2攻丝电机及液压拖动部分的PLC控制系统硬件设计 12
3.2.1设计内容 12
3.2.2 I/O设备的选择 12
3.2.3 PLC机型的选择 12
3.2.4 PLC I/O元件的分配 12
3.2.5 PLC I/O接线图 12
第4章 金属切削机床PLC控制系统的软件设计 15
4.1软件的组成及作用 15
4.2程序的设计 15
4.2.1公用程序的设计 15
4.2.2全机全自动程序的设计 17
4.2.3单机手动程序的设计 22
4.2.4单机半自动程序的设计 24
4.2.5信号显示与故障报警程序的设计 30
参考文献 32
总结 33
致谢 34
附录 基于PLC的金属切削控制系统的设计图表 35
使用说明书 56