减速机壳加工工艺分析及夹具设计

编号：毕业设计（论文)说明书题目：减速器机壳加工工艺分析及夹具设计院（系）：专业：机械设计制造及其自动化学生姓名：学号：指导教师单位：姓名：职称：题目类型：理论研究实验研究工程设计工程技术研究软件开发应用研究2015年5月6日摘要机械加工工艺的设计是加工零件的必要过程，只有很好的制定机械加工工序的过程，才能加工出合格的产品。对于工艺过程的设计，其主要是通过对零件材料的选择以及加工工序的制定，以及期间的各项参数，包括毛坯的参数、刀具的参数和型号的选择、机床型号的选择等。通过该过程来获得我们所需要的合格的零件。期间，还涉及到一个重要的内容，那便是夹具的设计，夹具是机械加工过程中的基础，对零件有着精度的影响，同时还影响着刀具的寿命，加工过程的稳定性。对于夹具的设计要运用到很多知识，例如常用的钻床夹具、镗床夹具、车床夹具以及铣床夹具，此外还需要合理的选用精基准和粗基准。同时夹具定位、夹紧力相关的参数还涉及到生产效率和生产成本。为此，机械加工工艺和夹具的设计都是不容忽视的重要内容。关键词：加工工艺；夹具；定位；加工精度；夹紧力AbstractThemachiningprocessispartofthemechanicalproductsandproductionprocess,isthedirectproductionprocess,itsintentistotakemetalcuttingtoolmachiningorgrindingtooltoprocesstheworkpiece,soastoachievetherequiredshape,size,surfaceroughdegreeandthemechanicalandphysicalpropertiestobecomequalifiedpartsoftheproductionprocess.Forthedesignprocess,whichismainlythroughthedesignofpartsandmaterialsselectionandmachiningprocessandparameters,includingblankparameters,toolparametersandmodelselection,machinetooltypesandselection.Throughtheprocesstoobtainthequalifiedpartsweneed.Period,alsoinvolvesanimportantcontent,thereisafixturedesign,fixturemachiningprocessbased,ofpartshasanaffecttheaccuracy,butalsoaffectstoollifeandmachiningprocessstability.Widelyusedinmanufacturingfixture,eachphaseoftheprocessisaveryimportantprocessequipmentofmanufacturing,fixtureusedintheproductionofquality,workefficiency,andfixtureusingreliability,ontheprocessingqualityandproductionefficiencyoftheproductshasadecisiveinfluence.Forprocessdesign,Iusedtomachiningmachinetechnologyknowledge,suchasprocessandworkstation,workingstepsand,atthesametimeforprocessingmachinetoolfeedrate,spindlerotatingspeedandcuttingdepthandcuttingspeedhavecertainunderstandingandspindlespeed,feedrateandcuttingspeedtocalculateandcheckthemanualtodetermine,forduringthestandardfixtureandspecialfixtureandgagehavecertainunderstanding.Forthefixturedesigntobeappliedtoalotofknowledge,suchascommonlyuseddrillingfixture,jigboringmachine,fixtureforlatheandmillingfixture,inadditiontothereasonablefineselectionofbenchmarksandbenchmarkcrude.Atthesametime,theparametersrelatedtotheclampingforcearealsorelatedtotheproductionefficiencyandtheproductioncostFirsttheconceptofthefixture,andthenthedesignofmachinetoolfixture,frompositioningtoerroranalysistoensurethemachiningaccuracy,andthencalculatetheclampingforcecalculationdeterminedtostepupthepointnumberandotherdetails.keywords：machiningprocess;cuttingforce;fixture;positioning;machiningaccuracy;clampingforce目录引言..................................................................21零件工艺的分析...................................................41.1零件的工艺分析.....................................................41.2确定毛坯的制造形式.................................................71.2.1毛坯的种类确定...................................................71.2.2毛坯的形状及尺寸的确定...........................................71.3毛坯的材料热处理...................................................72拟定箱体加工的工艺路线..........................................82.1定位基准的选择.....................................................82.1.1精基准的选择.....................................................82.1.2粗基准的选择.....................................................82.2加工路线的拟定.....................................................93机械加工工艺的确定.............................................113.1机盖加工.........................................................113.1.1毛坯的外廓尺寸..................................................113.1.2重要平面加工工序的参数..........................................113.1.3加工的工序尺寸及加工余量........................................113.1.4工序5(粗铣顶面)................................................153.1.5工序6(粗铣结合面)..............................................153.1.6工序7（磨分割面）..............................................153.1.7工序8（钻孔）..................................................153.2机座加工.........................................................153.2.1毛坯的外廓尺寸..................................................153.2.2工序5（粗铣箱体下平面）........................................153.2.3工序6（铣削箱体结合面）........................................153.2.4工序7（磨箱体分割面）..........................................153.2.5工序8（钻孔）..................................................153.2.6工序9（钻孔）..................................................153.2.7工序10（钻孔）.................................................153.3箱体加工.........................................................113.3.1重要加工平面的参数..............................................113.3.2加工的工序尺寸及加工余量........................................113.3.3工序2...........................................................113.3.4工序4..........................................................113.3.5工序5..........................................................113.3.6工序6（精前后铣端面）..........................................113.3.7工序7（精前后铣端面）..........................................113.3.8工序9（粗镗）..................................................113.3.9工序10（粗镗）.................................................113.3.10工序11（半精镗）..............................................113.3.11工序12（半精镗）......