1、 本科毕业设计 题题 目目: :万能升降台铣床的 PLC 控制系统设计 学学 院院: : 专专 业业: : 机械设计制造及其自动化 班班 级级: : 学学 号号: : 二一 四 年 五 月 二十五 日 摘摘 要要 铣床是以各类电动机为动力的传动装置与系统的对象以实现生产过程自动 化的技术装置。电气系统是其中的主干部分，在国民经济各行业中的许多部门 得到广泛应用。 PLC 是一种数字运算操作的电子系统，它采用可编程序的储存器，用来在其 内部存储执行逻辑运算、顺序控制、定时、计数和算术运算等操作的指令，并 通过模拟的或数字的输入和输出接口，控制各种类型的机器设备或生产过程。 继电器接触式模拟线路复
2、杂，容易出错。本次毕业设计是对原来的继电器 接触式模拟控制系统进行 PLC 改造而成, PLC 控制系统无论是硬件还是软件,控 制稳定可靠,具有极高的可靠性与灵活性,更容易维修,更能适应经常变动的工 艺条件，取得了较好的经济效益。采用 PLC 控制系统，功能完善、使用方便、 安装简单、抗干扰能力和可靠性能力都强。并且使用 PLC 控制,使其检测过程稳 定,控制方便,提高生产自动化水平，提高劳动生产率，完全自动化。 关键词：X62W 铣床；电气控制系统；PLC AbstractAbstract Various types of milling machine is a motor-driven
3、gear in order to achieve the objects and systems of production process automation technical devices. Electrical system is one of the backbone part of the national economy in the various industries are widely used in many sectors. PLC is a digital computing operation of electrical system .It uses pro
4、grammable storage devices used in its internal memory implementation of the logical operations, sequential control, timing,counting and arithmetic operations such as instruction, and through analog or digital input and output interfaces to control various types of machinery and equipment or producti
5、on process. Relay contact analog circuit complex and error prone.This graduation design is to the original relay contact simulation control system of PLC transformation, by the practical operation proved that the PLC control system hardware and software, control is stable and reliable, has a very hi
6、gh reliability and flexibility, easier maintenance, more can adapt to the constantly changing process conditions, achieved good economic benefits.Adopt PLC control system, perfect function, convenient to use, simple installation, anti-interference and reliability are strong.And using the PLC control, make the test process is stable, easy to control, improve the level of production automation, improve labor productivity, fully automated. K
