毕业设计（论文）
多工步组合机床的PLC控制系统设计
摘 要
工业机床的控制在工业生产自动化控制中占有重要的位置。在机床行业中，多工步动作多机床由于其工步及，控制较为复杂。采用传统的继电器控制时，需要的继电器多，接线复杂，因此故障多，维修困难、费时费力。采用PLC控制，可是接线大为简化，不但安装十分方便，而且保证了可靠性，减少了维修量，提高了功效。制造业是一个国家或地区经济发展的重要支柱，其发展水平标志着该国家或地区的经实力、科技水平、生活水准和国防实力。而制造业的生产能力蛀牙取决于执照设备——机床的先进程度。多工步机床用于加工棉纺锭子锭脚的一种加工机床，某锭脚加工工艺比较复杂，零件加工前为实心毛坯件，整个机械加工由7个刀具分分别按照7个工步要求依次进行切削。7个工步依次为：钻孔、车平面、钻深孔、车外圆及钻孔、粗绞双节孔及倒角、精绞双节孔、绞锥孔的工步要求。
关键词：制造业，多工步机床，PLC控制，梯形图
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毕业设计（论文）
Design of combination machine tools control system of PLC
ABSTRACT
The control of industrial automation control in industrial production occupies an important position. The machine tool industry , multi-stage machine and work because of its action,control is more complicated. Using traditional relay control, need complex, the relay, fault than wiring, maintenance difficulties, Feigong time-consuming. PLC control, but not only greatly simplified wiring, installation is very convenient, and ensure the reliability, reduce the maintenance and increase the efficiency.Manufacturing is one country or region development of the important pillars, its development level mark the country or region`s economic strength and technology level, the living standards and national defence capabilities. While manufacturing production capacity depends on the advanced manufacturing equipment, machine tool. Many workers step for processing cotton spinning ingots machine a processing machine a feet, a spindle feet processing technology is more complex, parts processing for solid blank piece before, the whole mechanical processing by seven tool points respectively according to seven workers were cutting step requirements. Seven work step is as follows: the drilling, car plane, drill deep holes, outside, round and drilling, coarse twisted double festival hole and chamfering and fine twisted double festival, twisted tapered bore holes work step requirements.
KEY WORDS: Manufacturing,Multi-stage machine, PLC control,Iadder-iagram
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毕业设计（论文）
目 录
前 言 .................................................................................................. 1 第1章 多工步组合机床与PLC ....................................................... 2
1.1 课题研究的背景 ................................................................... 2
1.1.1 我国工业电气控制技术的发展状况 .......................... 2 1.2可编程控制器的简介 ............................................................ 3
1.2.1可编程控制的定义 ...................................................... 3 1.2.2 PLC的特点 .................................................................. 4 1.3 课题的提出 ........................................................................... 5 1.4 课题研究的意义，价值和技术可行性 ................................ 5
1.4.1 PLC控制与继电器控制的比较 ................................... 5 1.4.2 PLC控制与单片机控制的比较 ................................... 7 1.5 小结 ...................................................................................... 7 第2章 硬件设计 ............................................................................... 8
2.1 PLC选型设计 ....................................................................... 8 2.2 PLC的I/O编址 .................................................................... 9
2.2.1 PLC的I/O具体分配表 ............................................... 9 2.3 PLC的I/O电路设计 .......................................................... 10 2.4 元件明细表 ......................................................................... 11 2.5 小结 .................................................................................... 14 第3章 软件设计 ............................................................................. 16
3.1软件开发平台和编程语言的选择 ....................................... 16
3.1.1软件开发平台 ............................................................ 16 3.1.2编程语言的选择 ........................................................ 16 3.2多工步机床电气控制系统的流程图设计 ........................... 18 3.3 多工步机床电气控制系统梯形图设计 .............................. 19 3.4 小结 .................................................................................... 24 第4章 组态设计 ............................................................................. 26
4.1 人机界面（HMI）设计 ...................................................... 27
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毕业设计（论文）
4.2 定义设备和连接变量 ......................................................... 29 4.3 数据变量定义 ..................................................................... 29 4.4 动画连接与命令语言 ......................................................... 30 4.5 组态图 ................................................................................ 33 结 论 .............................................................................................. 35 谢 辞 .............................................................................................. 36 参考文献 .......................................................................................... 37 外文资料翻译 .................................................................................. 38
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