叶轮座零件工艺设计及专用夹具设计说明书[带图纸].doc -- 45 元

编号无锡太湖学院毕业设计（论文）题目叶轮座零件加工工艺与专用夹具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）叶轮座零件工艺设计及专用夹具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97学号0923818作者姓名2013年5月25日II摘要本论文主要研究叶轮座的加工工艺与其专用夹具的设计。根据零件使用要求，分析零件的机械加工工艺性，编制零件机械加工工艺规程，形成全套工艺文件，即工艺过程卡、机加工工艺卡、工序卡绘制零件图在制定工艺过程中，要确定各工序的安装工位和该工序需要的工步，加工该工序的机车及机床的进给量，切削深度，主轴转速和切削速度，该工序的夹具，刀具及量具，还有走刀次数和走刀长度，最后计算该工序的基本时间，辅助时间和工作地服务时间。设计叶轮座零件加工的专用夹具，绘制夹具装配图及全套非标零件图，分析夹具的定位精度，切削力、夹紧力。关键词加工工艺专用夹具全套工艺文件定位精度IIIAbstractThisthesismainlystudiestheimpellermachiningprocessanditsspecialfixturedesign.Accordingtopartsuserequirement,manufacturabilityanalysisofmachiningparts,preparethepartsmachiningprocessplanning,formedafullrangeoftechnologydocument,namelytheprocesssheet,machiningprocessCARDS,processCARDSDrawthepartdrawingIntheprocessofmakingprocess,todeterminetheinstallationlocationofeachprocessstepandtheworkoftheprocessneed,locomotivesandmachinetoolsinprocessingtheprocessfeed,cuttingdepth,spindlespeedandcuttingspeed,theprocessoffixture,cuttingtoolsandmeasuringtool,andfeedingfrequencyandfeedinglength,finallycalculatedtheprocessofbasictime,auxiliarytimeandservicetimeiscarriedout.Specialfixturedesignofimpellerpartsprocessing,fixtureassemblydrawingsandafullrangeofnonstandardpartscharting,analysisoffixturelocatingprecision,cuttingforce,clampingforce.KeywordsprocessSpecialfixtureFullsetofprocessdocumentsPositioningaccuracyV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...........................................................................................................12零件分析.....................................................................................................................................22.1零件作用与分析...................................................................................................................22.2零件的生产纲领与生产类型...............................................................................................22.3零件的工艺分析...................................................................................................................22.3.1主要加工面................................................................................................................32.3.2主要基准面.....................................................................................................................33叶轮座加工的主要问题和工艺过程设计所采取的相应措施..................................................43.1确定毛坯的制造形式...........................................................................................................43.2基面的选择...........................................................................................................................43.2.1粗基准的选择.................................................................................................................43.2.2精基准的选择.................................................................................................................43.3确定加工工艺路线...............................................................................................................43.4机械加工余量、工序尺寸及毛坯尺寸的确定...................................................................63.5确定切削用量.......................................................................................................................94专用夹具设计............................................................................................................................254.1零件的加工工艺分析.........................................................................................................254.2定位基准的选择.................................................................................................................254.3定位夹紧方案的确定.........................................................................................................254.4切削力的计算.....................................................................................................................264.5定位元件的设计.................................................................................................................274.6定位误差计算.....................................................................................................................274.6.1工件孔与定位心轴的定位误差分析..........................................................................274.6.2一面两销定位误差分析..............................................................................................284.7夹紧元件的设计.................................................................................................................304.7.1夹紧力的计算...............................................................................................................304.7.2自锁条件......................................................................................................................304.7.3斜楔增力特性与升角关系..........................................................................................314.7.4斜楔夹紧机构的类型与计算......................................................................................315结论与展望...............................................................................................................................335.1结论.....................................................................................................................................33