文档介绍：课程设计(论 文)
基于PLC的单轴伺服数控滑台设计
基于PLC控制步进电机的数控滑台
摘要
随着微电子技术、计算机技术和软件技术的迅速发展,数控机床的控制系统日益趋向于小型化和多功能化,具备完善的自诊断功能;可靠性也大大提高;数控系统本身将普遍实现自动编程
PLC(可编程控制器)是一种专门为在工业环境下应用而设计的数字运算操作的电子装置。它采用可以编制程序的存储器,用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令,并能通过数字式或模拟式的输入和输出,控制各种类型的机械或生产过程。论文在介绍了数控滑台的工作原理及方法后具体介绍了可编程控制器S7-200工作原理、各种参数、特点等,给出了控制系统的硬件设计方案、软件设计方法。
步进电机是一种能将电脉冲信号转换成角位移或线位移的机电元件, 在工业上有着广泛的应用。论文介绍了步进电机的工作原理和控制原则, 以及步进电机的驱动器工作方式。光栅尺传感器系统主要应用于直线移动导轨机构或精密位移量的测量,可实现移动量的高精确显示和自动控制,已广泛应用于机床加工和仪器的精密测量。采用西门子触摸屏TP170为人机界面,实现了人际信息的交互。
本系统简单实用,成本低,完全满足系统的控制要求,具有很好的实用性。在附录中,本文还将给出一些必要的系统设计资料,供参考之用
关键词:PLC、步进电机、光栅尺
NC slider control system based on PLC and Stepper Motor
Abstract
With the rapid development of micro-electronics technology, computer technology and software technology ,NC control system is ing to tendency of small-scale and multi-functional, has improved self-diagnostic features, greatly reliability and the NC system itself will generally have Characteristics of automatic programming. PLC is a specialist in industrial environments for the application of digital design and operation of puting devices. It uses programming process memory, to implement its internal storage logical, puting, timing, counting and arithmetic operations, and control all types of machinery or production process through input and output digital or analog. Papers presented at the NC slider working principle and the specific control methods and the PLC- S7-200’s working principle, the parameters and characteristics, i the hardware design, software design methods of the control system.
Stepper motor is a electrical and ponents that signals can be converted into electrical impulses angular displacement or displacement of the mechanical and ponentsin a wide range of industrial applications. Papers states the stepper motor control methods and the principle of principles and the stepper motor driver working methods. Grating-foot sensor system is mainly used in a straight line or mobile guide precision measur