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1毕业设计（论文）设计论文题目立式钻床的数控化改造摘要本文主要介绍了立式钻床的改造和设计，通过导入液压进给系统和PLC控制系统将立式钻床改造为自动钻床，并可通过PLC实现自动控制。设计过程按照机床的一般设计步骤先进行总体方案的确定，然后再分别对进给系统、传动系统和控制系统进行具体设计。设计的目标在于通过导入液压进给系统和PLC控制系统，改造后的钻床能实现自动化连续生产、改善产品的加工质量、提高劳动生产效率降低工作人员劳动强度和工作量钻床系统能够工作平稳，满足工作要求经济因素合理。本文设计的重点在于进给系统液压缸的设计和PLC控制系统的设计。进给液压缸系统的设计主要包括液压缸结构设计和控制油路的设计PLC控制系统设计主要是根据工作要求和控制需要，选择电气元件和编写控制程序来实现对自动钻床的控制。改造后的钻床，能实现自动化控制，是典型的机电一体化产品。关键词自动钻床液压进给系统PLC2ABSTRACTcfeedssystemThisthesismainlyillustratestheimprovinganddesignofBenchtypedrillingmachine.WechangetheBenchtypedrillingmachinetoautomaticdrillingmachinebytransmittingintohydraulicsystemandPLCcontrolsystem,theautomaticdrillingmachinecanbecontrolledbyPLC.Weascertaintheentireschemebythegeneralmachinedesignstepsinthedesignprocess,andthenseparatelydesignthefeedsystem、drivessystemandcontrolsystem.ThepurposeofthisdesignasbelowBytransmittingintohydraulicsystemandPLCcontrolsystem,theautomaticdrillingmachinecthesystemoftheautomaticdrillingmachinecanworkreposefullyandsatisfytherequirethespentofdesigniseconomic.TheimportantpartsofthethesisarethedesignofhydraulicfeedssystemandPLCcontrolsystem.ThedesignoffeedhydraulicsystemincludesthedesignsofhydraulictanksstructureandcontrolthedesignofPLCcontrolsystemischoosingtheelectricalcomponentsandprogrammingcontrolprogramtocontrollingtheautomaticdrillingmachineaccordingtotherequirementsofworkandcontrol.TheBenchtypedrillingmachineimprovedcanbecontrolledautomatically.ItisatypicalmachineofMechatronics.KeywordsautomaticdrillingmachinehydrauliPLC目录第一章绪论..........................................................................................51.1问题分析及其对策...................................................................51.2本文研究的内容及目标.............................................................71.3本章小结...................................................................................8第二章自动钻床的总体方案设计........................................................82.1自动专用钻床已知条件和设计要求的概述...............................92.2自动钻床的工艺路线分析与确定..............................................932.3执行系统的方案设计...............................................................102.4传动系统方案设计和原动机选择............................................122.5控制方案设计..........................................................................122.6总体布局设计..........................................................................132.7本章小结.................................................................................13第三章专用钻床进给系统的设计........................................................143.1进给系统概述与分析...............................................................143.2进给系统方案图的确定...........................................................153.3工况分析.................................................................................153.4切削力的计算..........................................................................163.5钻床主轴设计..........................................................................183.6进给液压系统设计..................................................................213.7本章小结.................................................................................31第四章专用钻床主轴传动系统的设计................................................324.1主轴传动系统的分析...............................................................324.2主轴花键的设计......................................................................324.3主轴电机选择..........................................................................3244.4V带传动设计...........................................................................334.5本章小结.................................................................................34第五章自动钻出控制系统的设计..........................355.1自动钻床的自动化控制要求....................................................355.2可编程控制器PLC的简述.......................................................355.3自动钻床进给系统控制流程....................................................365.4自动钻床进给系统电气原理图................................................375.5自动钻床进给系统控制元件的选择........................................395.6控制系统程序的编写...............................................................415.7本章小结.................................................................................41第六章设计总结....................................................................................42致谢..........................................................................................................43参考文献..................................................................................................44
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