FMS 中的物质处理控制系统

中文字数:5656,中文页数:11  英文字数:3365页数:15

 摘  要
 
 本篇论文提出了物流中应用于变速箱的活性制造系统的控制系统的设计。研究的范围包括物流控制,自动交通工具,物质交换站,多层仓库系统，收据控制和 CNC（电脑数值控制）机器设备和主机等。此篇论文描述了传送控制系统并且通过理论分析简单的描述了设备和仓库间的通信。

 关键词：活性制造系统(FMS) ，交通工具, 计算机集成制造(CIM) ，可编程逻辑控制器(PLC)
 
 
 

引  言
 活性制造技术（FMT）起源于19世纪60年代中期的美国，自从那以后传到了许多其他的国家。在最近的几年期间，活性制造系统(FMS)不仅在许多工业化国家被演示，而且在许多发展中国家也被应用。现如今，计算机集成制造(CIM)在同领域中已经成为了一个热门的课题。在许多国家中，计算机集成制造能适应于产品加速生产发展的需求，提高产品的质量,降低产品的制造费用并缩短设计产品所需的时间。在工业和学术/ 研究两部门都已致力于对计算机集成制造的发展和应用。计算机集成制造(CIM)比活性制造系统(FMS)更有优越性，有利于制造业的发展。
活性制造系统(FMS) 革命性的改革是使小批量的制造可能在大规模的范围中建立一个制造系统，一个FMS通常由机器中心(电脑数值控制或 数值控制机器)，物质交换站, 储藏设备，物流控制或传输系统，清洁车站和机械工程等组成。所有的这些组成部分都被它们的控制器控制，而这些控制器都与一个主机相连。在主机的控制之下，这些组成部分被连接到物流的传输系统中。物质在进入FMS前以固定的方式流动。物流传输系统能根据不同的物质选择不同的通道，处理工具，判断半处理的或已处理完的产品是否流入FMS中。活性制造系统(FMS)主要用于自动化的工作中，而且它们能够将大体积的物体进行处理，将其转化为小体积的媒介物质。 

 Abstract
 The design of a control system for the material transport as used in gear-box flexible manufacturing system is presented in this paper. The scope of investigation covers material transport control , automatic vehicle, material exchange station, multi-storeyed warehouse system, NC and CNC machines and host computer etc. The paper describes the transport control system and its design, and briefly describes the communication among devices and warehouse access principles.
 
 Key words: flexible manufacturing system (FMS)  vehicle
 computer integrated manufacturing (CIM)
 programmable logic controller (PLC)

Introduction
 The flexible manufacturing technology (FMT) originated in USA in the mid 1960s’, since then it has spread to many other countries. During the last few years, the flexible manufacturing system (FMS) has demonstrated not only popular in the industrialized countries, but also finds its applications in many developing countries. Nowadays, the computer integrated  manufagturing (CIM) has become a hot topic in the field. In many countries, it can meet the demands for accelerating products development, improving quality of production, decreasing production costs and the period of designing products. Both industries and academic/research sectors are devoted to its development and applications .CIM is much more superior to FMS and is probably the direction of development in the manufacturing sector.
 The evolution of FMS makes small batch production of wide varieties possible in a production set up of large scale size, A FMS generally consists of machining Center(CNC or NC machines),material exchange station, storage, material handling or transport system, cleaning station and robotics etc. All these components are controlled by their controllers which are connected to a host computer.                 
  Under the control of the host computer, these components are connected to the material transport system. Materials flow in a pre-determined way in the FMS. The material transport system can determine different paths for different materials, tooling, semi-processed or finished products whether flowing into or out of the FMS. The FMS are essentially automated job shops and they should be able to process a large total volume of small to medium batches of parts.

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