基于PLC的物料分拣系统设计

xxxxx毕业设计题目基于PLC的物料分拣系统设计英文题目TheDesignofMaterialChooseSystemBasedonPLC院系机械与材料工程学院专业机械设计制造及其自动化姓名xxx年级2009(机材A0916)指导教师xxx二零一三年六月II摘要物料分拣采用可编程控制器PLC进行控制，能连续大批量地分拣货物，分拣误差率低且劳动强度大大降低，可显著提高劳动生产率，分拣系统能灵活地与其他物流设备无缝连接，实现对物料信息流的分配和管理。随着工业自动化的普及和发展，可编程控制器的需求量逐年增大，应用领域也越来越广。本设计基于FX-2N型PLC控制的物料分拣系统由上料机构、搬运机械手机构、物料传输分拣机构组成，对三种不同的物料进行分类分拣。灵活运用传感器对物料进行检测、识别、以及对机械手的状态检测。在本设计中运用了步进电机进行旋转角度的精确定位，利用变频控制技术对物料传输速度进行了设计。现目前物料分拣系统运用甚广，系统中设计到搬运机械手也广泛应用在各行各业。本次设计应用了大部分在校所学的知识，将各种元器件通过逻辑关系有序的联系起来，构成物料分拣系统，实现了光机电一体化。【关键词】可编程序控制器；传感器；硬件设计；软件设计IIIAbstractThematerialsortingadoptprogrammingcontrollerPLCtobeinprogressunderthecontrolof,cancriticizeinlargescaleinarowmeasuringfieldsortinggoods,theintensitysorting,errorleadlowandworkingisreducedgreatly,butnotableriseproductivity.Markchoosessystemtobeabletonimblyandlogisticsequipmentseamlessconnectionother,cometruetomaterialinformationstreamassignmentandmanage.Hardware-Designandsoftware-designmiddlehavingintroduceditmainlyinisdesigned.Withthepopularizationanddevelopmentofindustrialautomation,increaseddemandforprogrammablecontrollers,fieldmoreandmorewidelyused.DesignmaterialsortingsystembasedonFX-2NPLCcontrolbyfeeding,handlingrobotbody,materialtransportpickupbodies,onthreedifferentmaterialsforcategorysorting.Flexiblesensormaterialfordetection,identification,andStatetestingforManipulator.Thisdesignusesasteppermotortopreciselypositiontherotation,useofvariablefrequencycontroltechniquetodesignthematerialtransmissionspeed.Currentmaterialsortingsystemusingawiderangeofsystemdesigntohandlingrobotsarewidelyusedinalltradesandindustries.Mostofthedesignandapplicationoftheknowledgelearntinschool,tolinkvariouscomponentsthroughalogicalandorderly,constituteamaterialsortingsystem,foroptical,mechanicalandelectronicintegration.【Keywords】PLC;Sensor;Hardware-design;software-designIV目录前言.....................................................................................................................1第一章绪论.........................................................................................................21.1分拣系统的研究背景.................................................................................21.2物料分拣系统发展概况和现状.................................................................31.3课题研究目的和意义................................................................................41.4本文研究的主要内容................................................................................51.5本章小结....................................................................................................5第二章PLC系统设计........................................................................................62.1控制系统设计的基本内容........................................................................62.2控制系统设计的原则................................................................................72.3控制系统设计的一般步骤........................................................................72.4程序设计的步骤........................................................................................82.5编写梯形图应该注意的事项....................................................................82.6本章小结....................................................................................................9第三章系统的组成及控制要求.......................................................................103.1系统的组成..............................................................................................113.1.1上料机构.........................................................................................................113.1.2搬运机械手机构..............................................................................................113.1.3物料传输分拣机构..............................................................................113.2系统控制要求..........................................................................................123.3本章小结..................................................................................................13第四章系统硬件设计.......................................................................................144.1电气元件名称及功能..............................................................................144.1.1输入电气元件.................................................................................................144.1.2输出电气元件.................................................................................................15V4.1.3执行电气元件.....................................................................................154.2输入/输出（I/O）点分配........................................................................164.3PLC的选型..............................................................................................174.3.1系统对PLC的要求........................................................................................184.3.2确定PLC型号....................................................................................184.4三菱FX-2N型PLC控制原理图............................................................194.5步进电机设计..........................................................................................204.6本章小结........................