基于PLC改造的C616车床电气控制系统设计..docx

课程设计说明书指导老师：王建平作者：许昀鹏；黄启迪；许笠专业：机械设计制造及其自动化 时间：2016年12月28日基于PLC改造C616车床电气控制系统设计摘要 文章以C616基本车床为研究对象,通过对主要结构和运动形式的探究以及对机床的工作过程和控制要求分析,熟悉C616基本车床的工艺过程和机械动作情况，根据已知的继电器电气原理图分析和掌握控制系统的工作原理并采用PLC控制系统的设计方法, 进行了软硬件设计,列出了PLC的设计图,绘制了PLC的安装接线图，编写PLC控制程序的梯形图和指令表。关键词:可编程控制器(PLC)；普通C616车床；控制系统；编者：许昀鹏审核：许昀鹏、许笠、黄启迪 引言可编程控制器(PLC)是以微处理器为核心的通用工业控制装置,它将传统的继电器接触器控制系统与计算机控制技术紧密结合 ,集计算机、控制、通讯于一体,具有可靠性高、通用性强、应用灵活、易于使用 维修方便、价格便宜等优点,为工业自动化提供了近乎完美的自动控制装置。根据我国当前的情况，继电器-接触器控制系统依然是机械设备最常用的电气控制方式，许多企业和高校实习工厂的机床和设备仍采用传统的继电器-接触器控制系统,由于采用物理电子器件和大量而又复杂的硬接线,使得系统的可靠性差,工作效率低,故障诊断和排除困难,严重影响了工厂的生产效率。随着科学技术发展，可编程控制器的出现，许多以继电器-接触器控制系统的机床组合电路通过改进，采用可编程控制系统，无论在性能上或者效率上都能得到很大提升。因此,采用PLC对机床电气控制系统进行技术改造,很有益处。本课题介绍了一种全新的自动化控制理念，以三菱电机公司的FX2N系列PLC作为车床的主控制器，同时连接PC端通过工业组态技术实现远程监控功能，实现一个全新的自动控制系统。目录第一章、绪论································································41.1普通车床改造的意义和前景············································41.2 PLC控制系统与电气控制系统的比较 ···································5 1.3电气系统改造为PLC控制的意义········································5 1.4 C616型普通车床简介·················································61.4.1机床结构······················································61.4.2运动及控制特点················································6第二章、C616型普通车床的电气控制线路分析···································7 1.1主电路分析··························································7 1.2控制电路分析························································7第三章、元器件选择·························································9第四章、三菱PLC的选型····················································10第五章、PLC设计···························································11第六章、梯形图设计程序·····················································11第七章、布置图设计·························································12第八章、安装接线图·························································14第九章、心得体会···························································15参考资料···································································15第一章 绪论1.1 普通机床改造的意义和前景更新改造旧机床是最近几年发展起来的一个新兴产业，在国外己形成一定规模和市