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目录摘要..................................................................IAbstract.............................................................II第1章绪论..........................................................1第2章配气机构的简介................................................22.1配气机构的工作原理.............................................22.2配气机构的优点及应用...........................................22.3配气机构横臂零件的作用.........................................32.3.1横臂零件的作用...........................................32.3.2优点.....................................................32.3.3缺点.....................................................3第3章配气机构横臂零件的机械加工工艺规程............................43.1配气机构横臂零件的工艺分析.....................................43.2配气机构横臂零件的机械加工工艺规程.............................43.2.1生产类型的确定...........................................43.2.2材料及毛坯的选择.........................................53.3配气机构横臂零件加工工艺过程的设计.............................53.3.1定位基准的选择...........................................53.3.2加工方法的选择...........................................53.3.3加工顺序的安排...........................................63.3.4配气机构横臂零件加工工艺过程的确定.......................63.4工序设计.......................................................93.4.1工时定额的计算...........................................93.4.2机床的选择...............................................93.4.3工艺装备的选择...........................................93.4.4加工余量及工序尺寸的确定.................................93.4.5具体的工序计算过程......................................10第4章专用夹具设计.................................................244.1夹具的设计要求................................................244.2铣无凸台面夹具设计铣床专用夹具...............................244.3钻Φ16孔及M18孔夹具设计钻床专用夹具........................25II结论.................................................................28致谢.................................................................29参考文献.............................................................30I摘要本课题来源于生产实践，充分利用所学的机械制图、机械设计及机械制造等课程，了解针对配气机构的特点，通过CAD软件，利用该软件制图功能，完成配气机构横臂零件铣钻孔夹具的设计。在课题的研究设计阶段，首先从众多的零件中选择一个作为设计夹具的零件。针对该零件的结构特点，制定该零件的加工工艺。其次要了解夹具的相关知识，结合零件的结构特点选择需要的夹具元件，设计出夹具的大体结构。机床夹具作为一种重要的工艺装备在机械制造工艺过程中起着十分重要的作用，它的设计不但要保证工件的加工质量，提高加工效率，降低成本，在操作维护中安全方便还要注意到夹具结构的标准化，夹具制造的精密化。为了保证夹具组装精度，需要学习了解工件定位原理。根据这些原理结合零件的结构特点确定零件在夹具中以一面两孔作为定位，计算夹具的定位精度与夹紧力保证零件在夹具上的加工精度。然后使用CAD绘图软件参考夹具设计手册绘制夹具元件的机械图，完成夹具的设计。关键词横臂工艺夹具IIAbstractThistopiccomesfromproductionpractice,makefulluseofwhathavelearnedmechanicaldrawing,mechanicaldesignandmechanicalmanufacturing,andotherprograms,tounderstandthecharacteristicsforthegasdistributionsector,throughtheCADsoftware,theuseofthesoftwaremappingfunction,completewithgassectorarmholesmillingdrillingfixturedesign.Intheresearchprojectsinthedesignphase,firstselectfromanumberofpartsasthedesignofafixtureparts.Forthatpartofthestructuralcharacteristicsofthedevelopmentofthepartsprocessingtechnology.Second,wemustunderstandthefixtureknowledge,combinedwiththestructuralfeaturesofcomponentsselecttherequiredfixturecomponents,thegeneralstructureoffixturedesign.Asanimportantfixtureofthetechnologyandequipmentinthemechanicalmanufacturingprocessplaysanimportantrole,itisdesignednotonlytoensurethattheworkpieceprocessingquality,improveprocessingefficiency,reducecosts,intheoperationandmaintenanceofsafeandconvenientbutalsonotedthatFixturestructureofstandardization,theprecisionoffixturemanufacturing.Inordertoensurethefixtureassemblyofprecision,needtolearntounderstandprinciplesofpositioningtheworkpiece.Combinationofcomponentsbasedontheseprinciplestodeterminethestructuralcharacteristicsofcomponentsinthefixturetoonesidetwoholesasthepositioningofthepositioningaccuracyofcalculationoffixtureclampingforcetoensurethepartswiththefixtureonthemachiningaccuracy.AndthenusetheCADdrawingsoftwarereference,FixtureDesignHandbook,amechanicalfixtureelementsdrawnmap,completefixturedesign.Keywordstransversearmworkmanshipfixture
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