轧辊磨床电气控制系统的设计

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轧辊磨床电气控制系统的设计

摘 要

轧辊磨床是工业生产中不可缺少的一种重要设备，它用于磨削各种具有中凸度或中凹度的轧辊。普通轧辊磨床，其曲线的生成过程大部分都是通过机械结构来控制的，由于其加工的轧辊轮廓曲线类型少，加工的轧辊轮廓曲线精度低，改变加工曲线参数困难，已经不能满足目前产品生产的要求。近年来，由于冶金、造纸、橡胶、塑料以及印染业的迅速发展，对轧辊磨削的技术要求也日趋提高。随着数控技术的普及和应用，为了适应轧辊磨削精密化、高效化和自动化的发展趋势，同时也为了适应用户需求和市场的变化，开发数控轧辊磨床将很有必要。另一方面，随着计算机技术和微电子技术的发展，基于IPC机的开放式数控系统已经成为当前数控技术发展的一个重要方向。

为了解决工业生产中轧辊磨削这一难题，结合轧辊磨床的特点和当前开放式数控系统的发展趋势，本文构建了一种以PC机为基础，以PLC为核心的开放式轧辊磨床数控系统,并对其硬件结构和软件体系进行了研究。根据轧辊磨床的特点和轧辊磨削所要实现的功能，该轧辊磨床的数控系统能够控制以下几个方向的运动：纵向的Z轴运动，横向的X轴运动，中高机构中偏心套的C轴运动，测量装置的X1和X2轴运动，工件的转动和砂轮的转动。

关键词: 轧辊磨床，电气控制，可编程序控制器，全数字直流调速装置

Electrical Control System of the Roll Grinder

Abstract

The roll grinder is indispensable important equipment in the industry, which grinds all kinds of dished or convex roller. For general roll grinder, its curves are mostly made by machinery structure. Due to its contour curves are few precision is low and changing of curve parameters is difficult, general roll grinder cannot satisfy the need of product-manufacturing at present. With the rapid development of metallurgy, paper making, latex, plastic, printing and dyeing in the recent years, the technical need for roller grinding is being increased. With the popularization and application of Cain order to accommodate the development trend of the precision, efficiency and autoimmunization of roller grinding and to meet consumers’ need and market change, it is necessary to develop a NC roll grinder. Moreover, with the development of computer science and micro-electronics, IPC-based open NC system has been an important direction of NC. To solve the difficult problem of roller grinding in manufacturing industry，considering the characteristics of roll grinder and the development trend of open NC system, an open NC system of roll grinder based on PC and PLC is put forward, and both its hardware and software are studied. According to the characteristics and realized function of the roller grinding, the NC system of the roll grinder can control the movements of Z-axis-axis, C-axis, X1-axis and X2-axis, workpiece’s running and grinder wheel’s running.

Key words: Roll Grinder，Electrical Control，PLC，Total Digital Adjustable-speed Device

目 录

1.1 本论文的背景及研究的意义 ····················· 1

1.1.1 轧辊磨床的特点 ······················· 1

1.1.2 轧辊磨床的发展趋势 ····················· 2

1.1.3 轧辊磨床电气控制改造的必要性 ················ 3

1.2 轧辊磨床控制系统的发展趋势 ··················· 3

1.3 本论文的主要工作 ························ 4

2.1 PLC的产生和特点及其发展动向 ··················· 5

2.1.1 PLC的产生 ························· 5

2.1.2 PLC的定义 ························· 6

2.1.3 PLC的特点 ························· 6

2．2 PLC的系统结构和基本工作原理 ·················· 8

2.2.1 PLC的系统结构 ······················· 8

2.2.2 PLC的基本工作原理 ····················· 9

2.2.3 PLC的主要功能 ······················ 10

2.3 PLC的应用设计步骤 ······················· 11

2.4 PLC的选型原则 ·········· …… 此处隐藏：9078字，全部文档内容请下载后查看。喜欢就下载吧 ……