毕业设计（论文）-全自动钢坯喷码机PLC控制系统设计（全套图纸）.doc

全自动钢坯喷码机PLC控制系统设计 专业：测控技术与仪器 全套CAD图纸，联系153893706 摘要： 工业自动化技术在近年来发展十分迅猛，当前工业自动化三大支柱技术之一的PLC技术以其很高的可靠性和抗干扰能力受到广泛的欢迎，在各行各业的技术改造过程中被大量地应用。然而，单机控制往往因为点数的限制，无法实现对于较复杂的系统的控制。 表面处理工程领域是当前一个倍受关注的领域，作为一个新兴的边缘学科领域，有着蓬勃的生机，这一工程领域内的喷码生产则是一项非常传统的产业，生产率低下生产技术水平不高的现实迫切需要对其加以技术改造。本文就如何提高喷码生产领域的自动化水平，运用PLC技术在生产线上实现控制。论文首先分析了喷码打标行业的生产状况，比较了几种常用的控制策略的优缺点，确定具体的控制方案，接着分析并设计了系统的控制流程，再就设备级的控制进行深入的研究，在硬件和软件两个层面上的控制进行了设计，最后对于系统的可靠性进行了设计。针对钢坯生产线，运用PLC控制气动回路，再控制喷头进行定位喷码；在操作上选用步进电机来精确定位和调速。 关键词: PLC； 钢坯喷码； 控制； 气动； 步进电机 The design of PLC Control System for Full-automatic spray-marker of Steel Billet Major:Measurement and Control TtechnologyInstrument Abstract：Industry automation technology develops very fast in recent years, as one of the three support technologies in industry automationPLC is greatly welcomed with its very high reliability and anti-interence ability, and applied largely in the technology reformation process of all walks of industries.However, the single machine control usually cant carry out for the control of more complicated system because of the restriction of point. The surface treatment engineering realm is paid close attention at present, as a new frontier subject realm it has booming source of vitality, however, in this engineering realm ,marking production is a very traditional industry, the reality of low production rate and low production technology level need urgently technology reformation. This paper analyses how to raise marking automation level of producing the realm, and use PLC technology to control in the production line. The thesis analyzed marking on the production condition of profession first, compared with the merit and shortcoming of a few control strategies in common use, gave concrete control project, analyzed and designed the structure of the controlling process, also carried on a thorough research for the control of equipments class, designed two levels’s control with production line of hardware and software, finally designed the credibility