摘要连续铸造是一种先进的铸造方法，其原理是将熔融的金属，不断浇入一种叫做结晶器的特殊金属型中，凝固（结壳）了的铸件，连续不断地从结晶器的另一端拉出，它可获得任意长或特定的长度的铸件。金属棒切割机在连续的铸造中工作，其的工作是由PLC控制电磁阀，使电磁阀控制气缸，并由气缸驱动与其连接的部件，实现对金属棒的准确定长切割，切割后自动返回初始位置。一个切割机分别切割两条金属棒，其切口深度为35mm，然后由压断机进行压断。金属棒切割机是一种既能有效的提高生产率，又在价格和使用方面能被广大用户所接受的一种新型的自动控制切割机。由PLC控制的气动金属棒切割机，其中融合了气压自动控制、机器人技术和PLC控制技术。PLC控制各个气动换向阀的电磁铁，由气缸驱动机械手完成顺序切割过程，实现了机械设计、电器控制和气动控制的有效结合。这种切割机具有控制方便，性能稳定，结构简单，调节、维修方便，生产率高等优点，具有广泛的应用前景。关键词：自动控制；切割；PLCABSTRACTContinuouscastingisanadvancedcastingmethods,theprincipleistomoltenmetal,continuouslypouredintoamoldcalledthespecialmetalmold,thesolidification(crust)ofthecasting,continuousfromtheothersideofmoldpulledout,itwillbeofarbitrarylengthoraspecificlengthofthecastings.Castingrodlinecuttingcontinuouscastingmachineatwork,itishandledbythePLCcontrolsolenoidvalve,sothatthesolenoidvalvecontrolcylinderbycylinderdriveconnectedcomponents,implementationofaccuratecastingrodsfixed-lengthcutting,cuttingreturntoinitialpositionautomatically.Acuttingmachinecuttingtwoseparately-castrods,theincisiondepthof35mm,thenbybreakingmachineisbreaking.Castingrodisalinecuttingmachinecaneffectivelyenhancetheproductivity,butalsointermsofpriceandusethevastnumbersofuserscanbeacceptedbyanewtypeofautomaticcuttingmachine.BythePLC-controlledpneumaticcuttingmachinecastingrod,oneoftheconvergenceofairpressureautomaticcontrol,roboticsandPLCcontroltechnology.PLCcontrolofallpneumaticsolenoiddirectionalvalve,cylinderdrivemachinerybyhandtocompletetheorderofcuttingprocess,implementationofmechanicaldesign,electricalcontrolandeffectiveintegrationofpneumaticcontrol.Thiscuttingmachinehasaconvenientcontrol,stableperformance,simplestructure,regulation,maintenanceconvenience,highproductivity,hasbroadapplicationprospects.Keywords：Automatic；Control；cut；plc目录第一章绪论............................................11.1前言.................................................11.2选题背景.............................................11.3主要特点.............................................21.4文章的结构...........................................2第二章PLC概述...........................................32.1可编程控制器的特点....................................32.2可编程控制器PLC的基本原理............................3第三章切割部分设计.......................................53.1设计要求.............................................53.2方案设计..............................................53.3结构设计..............................................63.3.1机电的选取.........................................63.3.2砂轮片的选取........................................63.3.3升降气缸的选取......................................63.3.4带传动的设计.......................................93.3.5滚动轴承的选取及校核...........................13第四章纵横行走部分的设计...............................174.1设计要求............................................174.2方案设计............................................174.3直线导轨的选择计算................
