立体仓库毕业设计论文

I基于PLC立体仓库控制系统设计摘要随着国民经济的飞速发展,自动化立体仓库必然会在各行各业中得到越来越广泛的应用。自动化立体仓库是现代物流系统的重要组成部分，是一种多层存放货物的高架仓库系统，由自动控制与管理系统、高位货架、巷道堆垛机、自动入库、自动出库、计算机管理控制系统以及其他辅助设备组成。本仓库模型控制系统是根据自动化立体仓库运行的基本原理而设计的。在整个控制系统中以西门子PLC作为核心控制元件，专用键盘作为人机接口部件，控制步进电机来驱动堆垛机在导轨上做运动。以步进电机每转输出的脉冲数为基础，通过键盘对每个仓位予以地址编码，通过PLC对命令键盘进行扫描并得到相应的仓位号，当PLC接收到来自键盘的输入命令后，便输出对应仓位的脉冲数，经过驱动器驱动步进电机按设定的方向转动一定的角度，进而控制传动部件丝杠旋转进行准确的定位，以完成货物的存取功能。本文首先对该课题的可行性及课题实现的现实意义和价值进行了介绍；其次对该系统的硬件组成、结构、原理进行了阐述和分析；再次对本控制系统的核心——软件进行了编写，论文中有相应的梯形图；最后对设计本课题所学到的知识和结论进行归纳和总结，并对本论文有待完善的地方进行扼要的说明。关键词：立体仓库；可编程控制器；仓储物流；S7-200；堆垛机IIDesignofWarehouseSystemBasedonPLCcontrolledAbstractWiththerapiddevelopmentofthenationaleconomy,automatedwarehouseinallwalksoflifewillcertainlybemorewidelyused.Automatedwarehouseisanimportantcomponentofmodernlogisticssystempartofamulti-layerstorageofgoods,overheadstoragesystem,theautomaticcontrolandmanagementsystems,highshelves,retrievalmachine,automaticstorage,automaticlibrary,computermanagementandcontrolSystemsandotherauxiliaryequipmentcomponents.Thewarehousemodelcontrolsystemisrunundertheautomatedwarehousedesignedthebasicprinciples.IntheentirecontrolsystemtoSiemensPLCasacoreelement,asaspecialkeyboardhumaninterfacecomponents,controlsthesteppermotortodrivethestackerexerciseontherail.Steppermotoroutputtothenumberofpulsesperrevolution,basedonthekeyboardtoaddresscodeforeachposition,throughthePLCthecommandtoscanthekeyboardandthecorrespondingpositionnumber,whenthePLCreceivesinputfromthekeyboardcommand,thentheoutputPositionscorrespondingtothenumberofpulses,drivenbysteppermotordrivetosetthedirectionofrotationbyacertainangle,thencontrolthetransmissioncomponentsforaccuratepositioningofthescrewrotationtocompletethecargoaccess.Inthispaperthefeasibilityoftheprojectandthesubjectoftherelevanceandvaluerealizationareintroduced;followedbythehardwarecomponentsofthesystem,structure,principlesaredescribedandanalyzed;onceagainthecoreofthecontrolsystem-thesoftwarewaswrittenPaperthereisacorrespondingladder;Finally,thedesignofthesubjectknowledgeandlearnedandsummarizedconclusions,andtobeperfectinthispaperabriefdescriptionofplaces.Keywords:Warehouse;programmablecontroller;warehousingandlogistics;S7-200;stackerIII目录第一章绪论.....................................................................................11.1自动化立体仓库的历史及国内外现状............................................11.2自动化立体仓库的简介及优越性....................................................21.3立体仓库的概述...............................................................................21.4论文的主要内容...............................................................................3第二章自动化立体仓库述系统概述..................................................42.1自动化立体仓库的硬件组成............................................................42.2立体仓库自动控制系统总体设计....................................................62.2.1自动化立体仓库控制原理分析..............................................62.2.2自动化立体仓库的系统工艺流程..........................................82.2.3功能分析.................................................................................8第三章系统控制方案的确定..........................................................113.1立体仓库系统设计的基本步骤......................................................113.2立体仓库的系统控制方案..............................................................12第四章立体仓库控制系统硬件设计.........................................................134.1控制系统的结构设计......................................................................144.2PLC的选型......................................................................................144.3PLC的I/O资源配置......................................................................154.4其他资源配置.................................................................................164.5步进电机的选择.............................................................................174.5.1步进电机的原理....................................................................174.5.2步进电机的选择....................................................................174.5.3步进电机驱动器的选择........................................................174.6传感器的选择.................................................................................204.6.1反射式传感器的选择............................................................204.6.2微动开关的选择....................................................................21第五章立体仓库控制系统软件设计.................................................225.1控制系统PLC程序流程..................................................................225.2程序设计思路.................................................................................225.3梯形图的设计.................................................................................23第六章结论与展望....................................................................................33谢辞.............................................................................................................34参考文献......................................................................................................35IV附录A外文翻译-原文部分........................................................................36附录B外文翻译-译文部分.........................