基于PLC的自动焊接系统

论文编号:ZD887    论文字数:14862,页数:39

 摘要
多年来，可编程控制器（以下简称PLC）从其产生到现在，实现了接线逻辑到存储逻辑的飞跃；其功能从弱到强，实现了逻辑控制到数字控制的进步；其应用领域从小到大，实现了单体设备简单控制到胜任运动控制、过程控制及集散控制等各种任务的跨越。今天的PLC在处理模拟量、数字运算、人机接口和网络的各方面能力都已大幅提高，成为工业控制领域的主流控制设备，在各行各业发挥着越来越大的作用。
本文介绍了PLC的现状，以及与其他控制系统有什么区别，如何对PLC，伺服等进行进行选型.设计出基于三菱FX2N-32MR以及配套三菱FX2N-1PG定位模块，三菱MR-J3-20A伺服系统以及光栅等组成的自动焊接系统，。系统可以根据不同要求，改动焊接参数，从而达到不同的目的。本设计还采用了触摸屏作为人机界面，通过触摸屏的操作可进行参数设置，实现对各种功能的控制，同时还能通过触摸屏显示测试结果和对系统当前运行状态进行实时的监控。

关键词：自动焊接系统，PLC，触摸屏，定位模块
  
 
Abstract
Over these years， the programmable logic controller (PLC) have realized the some developements when plc has beed produced. It turned the logical connection to the storage logical connection， and its function from weak to strong， and the result is realizing the progress of the logic control to digital control. it applicats in some airas， from small to big. it realizes the using of simple equipment in achieving a single control to do motion control， process control and distributed control across a variety of tasks. Today， PLC has been in dealing with analog and digital computing， human-machine interfaces and network capabilities ，and has became the mainstream of the field of industrial controls and control equipment. Overall， it has play an increasingly important role in all walks of life .
This article describes the presedent status of the PLC， as well as with other What is the difference between control system， how to PLC， servo， etc. Designed  the automatic welding systemsthe which composed by Mitsubishi FX2N-32MR-based as well as ancillary Mitsubishi FX2N-1PG positioning module. This System can be designed with different requirements， such as change in experimental parameters so as to achieving different purposes. The design also uses a touch screen as a man-machine interface through the touch-screen operation parameters， which can be set up to achieve the control of various functions， but also through the touch screen display the test results and the status of currently running on the system for real-time monitoring.

Key words: Automatic welding system，PLC，touch screen，Positioning Module
 
  
 
 
 
目录
摘要  II
Abstract III
1. 前言 1
1.1 国内PLC应用的现状 1
1.2 控制系统 2
1.3 传动系统选择 4
2. 器件选型 7
2.1 PLC选型 7
 2.1.1 选用PLC的参考条件 7
 2.1.2 FX2N 系列PLC的特点 9
2.2 伺服系统选型 10
 2.2.1 伺服选型步骤 10
 2.2.2 三菱MR-J3系列伺服特点 10
2.3 触摸屏选型 10
2.4 选型结果 12
3. 总体设计方案 13
3.1 焊接系统介绍 13
3.2 系统总体设计架构图 13
3.3 焊接系统设计动作要点 13
3.4 系统实际I/O与系统示意图 14
 3.4.1 I/O清单 14
 3.4.2 系统示意图 15
4. 系统硬件 16
4.1 系统PLC介绍 16
 4.1.1 FX2N-32MR硬件介绍 16
 4.1.2 FX2N-1PG 介绍 17
4.2 三菱伺服系统的使用 19
5. 系统软件设计 25
5.1 PLC编程介绍 25
 5.1.1 PLC编程软件与语言介绍 25
 5.1.2 FX2N-1PG应用编程 25
 5.1.3 报警制作 28
5.2 触摸屏的控制界面设计 29
 5.2.1 触摸屏编程软件介绍 29
 5.2.2 本系统界面设计 30
6. 总结 33
致  谢 34
参考文献  35