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摇臂零件工艺工装及钻Φ18和Φ16孔夹具设计论文[带图纸].doc

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摇臂零件工艺工装及钻Φ18和Φ16孔夹具设计论文[带图纸].doc

编号无锡太湖学院毕业设计(论文)题目摇臂零件工艺及工装设计信机系机械工程及自动化专业学号学生姓名指导教师(职称副教授)(职称)2013年5月25日无锡太湖学院本科毕业设计(论文)诚信承诺书本人郑重声明所呈交的毕业设计(论文)摇臂零件工艺及工装设计是本人在导师的指导下独立进行研究所取得的成果,其内容除了在毕业设计(论文)中特别加以标注引用,表示致谢的内容外,本毕业设计(论文)不包含任何其他个人、集体已发表或撰写的成果作品。班级机械93学号0923140作者姓名2013年5月25日II摘要机械加工行业作为一个传统而富有活力的行业,近十几年取得了突飞猛进的发展,在新经济时代,行业呈现了新的发展趋势,由此对其它的质量,性能要求有了新的变化。现在机械加工行业发生着结构性变化,工艺工装的设计与改良已成为企业生存和发展的必要条件,工艺工装的设计与改良直接影响加工产品的质量与性能。本文首先介绍了气门摇臂轴支座的作用和工艺分析,其次确定毛坯尺寸,然后进行了工艺规程设计,最后进行夹具设计。此次设计是对气门摇臂轴支座的加工工艺和夹具设计,其零件为铸件,具有体积小,零件结构简单的特点,由于面比孔易加工,在制定工艺规程时,就先加工面,再以面为基准来加工其它,其中各工序夹具都采用专用夹具,其机构设计简单,方便且能满足要求。关键词气门摇臂轴支座工艺分析工艺规程设计夹具设计IIIAbstractMachiningindustry,asatraditionalandvibrantindustry,hasbeenrapidlydevelopedforafewpastdecades.Intheneweconomicarea,theindustrypresentedanewdevelopmenttrend,andthetrendsalsochangesthequalityandtheperformanceoftheproductioninsomenewabstracts.Machiningindustryisnowtakingplaceinstructuralchanges,processdesignandimprovementofequipmenthasbecomethenecessaryconditionsoftheenterprisesurvivalanddevelopment,processequipmentdesignandimprovedproductsdirectlyaffectthequalityandperformance.Thisarticleintroducestheroleandprocessanalysisofthevalverockerarmbearingsupport,followedbydeterminingblanksize,andthenproceedtoorderthedesignprocess,thefinalfixturedesign.WhatwillbedisgnedisThemachiningprocessandfixturedesignoftheValveRockerArmBearingsupport,whichhasthechatacteristicsofthreeabstrcat.itscomponentsforcastings,withasmallsize,simplestructureandthecharacteristicsofparts,becausethesurfaceiseasierthantheeasyprocessing,pointoforderinthedevelopmentprocess,thesurfaceonthefirstprocessing,andthentosurfaceasabenchmarktootherprocessing,includingtheprocessesusedspecialfixture,anditsdesignissimple,convenientandcanmeettherequirements.KeywordsJPEGdiscretecosinetransformMATLABgraphicaluserinterfaceV目录摘要............................................................................................................................................IIABSTRACT..................................................................................................................................III目录............................................................................................................................................V1绪论.............................................................................................................................................11.1本课题的研究内容和意义...................................................................................................11.2国内外的发展概况...............................................................................................................11.3本课题应达到的要求...........................................................................................................22气门摇臂轴支座主要结构的机械设计.....................................................................................32.1.零件的工艺分析及生产类型的确定...................................................................................32.1.1零件的作用.....................................................................................................................32.1.2零件的工艺分析............................................................................................................32.1.3确定零件的生产类型....................................................................................................42.2选择毛坯种类,绘制毛坯图...............................................................................................52.2.1选择毛坯种类................................................................................................................52.2.2确定毛坯尺寸及机械加工总余量................................................................................52.2.3设计毛坯图....................................................................................................................62.2.4绘制毛坯图....................................................................................................................62.3选择加工方法,制定工艺路线...........................................................................................72.3.1定位基准的选择............................................................................................................72.3.2零件的表面加工方法的选择........................................................................................72.3.3加工阶段的划分.............................................................................................................82.3.4工序的集中与分散.........................................................................................................82.3.5工序顺序的安排.............................................................................................................82.3.6确定工艺路线................................................................................................................92.3.7加工设备及工艺装备选择..........................................................................................102.3.8工序间加工余量的确定...............................................................................................112.3.9切削用量以及基本时间定额的确定...........................................................................123气门摇臂轴支座零件专用夹具的设计...................................................................................233.1确定夹具的结构方案.........................................................................................................233.1.1确定定位方案,选择定位元件..................................................................................233.1.2确定导向装置..............................................................................................................243.1.3确定夹紧机构..............................................................................................................253.1.4确定辅助定位装置......................................................................................................253.2设计夹具体.........................................................................................................................263.3在夹具装配图上标注尺寸、配合及技术要求.............................................................264总结与展望................................................................................................................................28致谢.............................................................................................................................................29

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