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新乡学院2012届毕业论文1摘要：零件的工艺编制，在机械加工中占有非常重要的地位，零件工艺编制得合不合理，这直接关系到零件最终能否达到质量要求；夹具大的设计也是不可缺少的一部分，它关系到能否提高其加工效率的问题。因此这两者在机械加工行业中是至关重要的环节。这次毕业设计，我设计的课题是一级减速器箱体加工工艺及夹具设计。该箱体零件结构较复杂，体积较大。为了提高生产效率和降低劳动强度，我设计了一款钻床夹具。本次设计说明书分为两个部分:第一部分分为机械加工工艺规程的慨述，其中有工艺的组成，工艺规程的内容和作用，机械制造工艺规程的类型及格式，工艺规程的原理和步骤的介绍。同时对定位基准的选择，工艺路线中表面加工方法的选择、加工方法的划分、加工顺序的安排起到详细的介绍。第二部分主要介绍对零件加工的全过程，我这次设计主要选的是铸件对毛坯的确定；加工中的时效性处理；工艺路线的编制和工序卡片的编写（有卡片工艺、工序全过程）在加工完后的检验。在加工中夹具的设计和计算，对机械简明手册的翻阅对国标对准。在经济时效下保证了加工满足的要求。关键词：箱体、加工工艺、工序、夹具Abstract：ThePartoftheprocess,inmachiningplaysaveryimportantpartoftheprocess,preparetoreasonableorunreasonable,itdirectlyrelatestothequalityrequirementscouldeventuallyparts,Thedesignoffixtureisbig,itistheindispensablepartinrelationtoimprovetheefficiencyofthemachining.Sobothinmechanicalprocessingindustryiscruciallink.Thegraduationdesign,thetopicisIdesignprocessandfixtureenclosurereducerdesign.Thiscaseiscomplex,volumepartsstructure.Inordertoimproveproductionefficiencyandreducelaborintensity,Idesignadrillfixture.Thedesignmanualisdividedintothreeparts:Thefirstpartisdividedintothemachiningprocessofthespecifiedprocedures,includingprocess,contentsandprocedure,mechanicalmanufacturingprocessplanningofthetypeandtheprocedureformats,introducedtheprincipleandprocedure.Thechoiceofthelocatingdatum,theprocessrouteintheselectionofsurfacemachiningmethod,themethodofprocessing,sequencearrangementhasbeenintroducedindetail.Thesecondpartmainlyintroducestheprocessofpartsprocessing,Ichoosethedesignismainlyfordeterminationofcastingbillet,Thetimeliness,Thepreparationprocessrouteandtheprocessofwriting(card),wholeprocesscardtechnologyinprocessingafterinspection.Intheprocessofcalculation,andfixturedesignofmechanicalconcisemanualofgbthroughalignment.Underthelimitationintheeconomicguaranteeprocessingrequest.Keywords:box,processingtechnology,process,fixture,新乡学院2012届毕业论文2目录摘要························································································错误!未定义书签。英文摘要··········································································································1第一章绪论······································································································31.1减速器的运用、类型················································································31.2减速器箱体设计工艺的重要性·····································································3第二章对箱体零件的工艺分析··············································································42.1工艺过程的组成····················································································42.2工艺规程的内容与作用·············································································42.2.1工艺规程是指导生产的技术文件························································52.2.2工艺规程是生产组织和管理工作的基本依据·········································52.2.3工艺规程是新建或扩建工厂或车间的基本资料·······································52.3机械制造工艺规程的类型及格式·································································52.3.1机械加工工艺过程卡········································································52.3.2机械加工工序卡············································································62.4工艺规程设计的原则与步骤·····································································82.4.1工艺规程设计必须具备的原始资料·····················································82.4.2在掌握上述资料的基础上，箱体加工工艺规程设计步骤···························92.5毛坯的确定··························································································92.6基准的概念和分类及定位基准的选择·······················································112.6.1设计基准·····················································································122.6.2箱体零件的工艺设计和基准·····························································12第三章箱体零件的加工工艺过程·········································································143.1箱体零件加工工艺规程设计原理·····························································143.1.2本章主要说明本次设计的一级减速器箱体工艺设计·······························143.2箱体零件加工工艺规程设计时的内容和步骤··············································153.2.1根据以上资料，设计工艺规程的内容和程序········································153.3箱体零件的结构工艺性···········································································163.4毛坯的选用··························································································173.5加工的路线拟订····················································································183.5.1加工过程的开始阶段······································································183.5.2加工过程的中间阶段······································································183.5.3加工的最后阶段············································································18第四章总结与展望····························································································194.1总结····································································································194.2展望····································································································19参考文献········································································································20致谢··········