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毕业设计（论文）论文（设计）题目典型零件2数控加工工艺设计学院机械与汽车工程学院专业机械设计制造及其自动化2014年5月13日2典型工件2数控加工工艺设计摘要：数控技术及数控铣床在当今机械制造业中的重要地位和巨大效益，显示了其在国家基础工业现代化中的战略性作用，并已成为传统机械制造工业提升改造和实现自动化、柔性化、集成化生产的重要手段和标志。数控技术及数控铣床的广泛应用，给机械制造业的产业结构、产品种类和档次以及生产方式带来了革命性的变化。数控铣床是现代加工车间最重要的装备。它的发展是信息技术(1T)与制造技术(MT)结合发展的结果。现代的制造技术，都是建立在数控技术之上的。掌握现代数控技术知识是现代制造专业学生必不可少的。数控装置也逐渐由NC向CNC发展。其高速、高效、高精度、高可靠性的特性以及其模块化、智能化、柔性化和集成化的快捷方便使其在生产制造中成为越来越重要的角色。本文内容介绍了数控加工的特点、加工工艺分析以及数控编程的一般步骤。并通过对于典型零件2的详细数控编程来说明。本论文通过对数控加工工艺的过程的分析，建立了基于数控加工仿真软件UGNX8.0的基础上进行的数控加工路线的规划。在数控加工中，正确的合理的选择切削参数可以保证产品的质量、提高生产率、降低生产成本。从而使得更加方便保证典型零件的质量。关键词:数控铣床;加工工艺;数控编程;典型零件3TypicalPartsTwoCNCMachiningProcessDesignAbstract：TheimportantstatusofCNCtechnologyandCNCmillingmachineinthemechanicalmanufacturingindustryandgreatbenefits,andshowsitsstrategicroleinnationalinfrastructureintheindustrialmodernization,andhasbecomeatraditionalmechanicalmanufacturingindustrytoenhancethetransformationandimplementationoftheimportantmeansandsignofautomation,flexible,integratedproduction.NCtechnologyandthewidespreadapplicationofCNCmillingmachine,hasbroughtrevolutionarychangestothemanufacturingindustrystructure,productvarietyandqualityandproductionmethods.CNCmillingmachineprocessingworkshopisthemostimportantmodernequipment.Itisthedevelopmentofinformationtechnology(IT)andmanufacturingtechnology(MT)withtheresultofthedevelopment.Modernmanufacturingtechnology,arebuiltonthetechnologyinthenc.MastermodernCNCtechnologyknowledgeisessentialtoprofessionalstudentsofmodernmanufacturing.ThenumericalcontroldeviceisgraduallyfromNCtoCNC.Thecharacteristicsofhighspeed,highefficiency,highprecision,highreliabilityanditsmodular,intelligent,flexibleintegrationandconveniencemakeitbecomemoreandmoreimportantroleinproductionandmanufacturing.ThispaperintroducedthecharacteristicsofNCmachining,themachiningprocessanalysisandNCprogrammingofthegeneralsteps.ThroughthetypicalpartsindetailtoillustratetheNCprogramming2.Inthispaperthroughtheanalysisoftheprocessofncmachiningprocess,basedonthencmachiningsimulationsoftwareUGNX8.0conductedonthebasisofthenumericalcontrolprocessingrouteplanning.InNCmachining,thecorrectreasonablechoiceofcuttingparameterscanensureproductquality,increaseproductivity,reduceproductioncosts.Makingiteasiertoensurethequalityofthetypicalparts.Keys:CNCmillingmachine;Processingtechnology;NCprogramming;Typicalparts4目录第一章绪论...............................................................................................................11.1数控铣床的简介..............................................................................................11.2本论文研究的目的及意义..............................................................................1第二章数控机床的简介...........................................................................................31.1数控铣床的组成及工作原理..........................................................................32.2数控铣床的分类..............................................................................................42.3数控铣床的主要功能和加工特点..................................................................52.4加工在机械制造中的地位和作用..................................................................6第三章零件的工艺性分析.......................................................................................83.1零件图纸的分析..............................................................................................83.2零件的工艺分析..............................................................................................83.3工件的坐标系..................................................................................................9第四章数控加工工艺分析.....................................................................................104.1基准面的选择................................................................................................104.2制定加工方案................................................................................................104.3加工方案的比较分析....................................................................................124.4确定装夹方案和选择夹具............................................................................124.5刀具的选择....................................................................................................134.6切削用量的选择............................................................................................144.7切削轨迹的确定............................................................................................16毕业设计总结.............................................................................................................22参考文献.....................................................................................................................23附录..........................................................................................................................24附录一:典型零件2机械加工工艺过程卡........................................................24附录二:典型零件机械加工工序过程卡............................................................24致谢..........................................................................................................................251第一章绪论1.1数控铣床的简介数