目錄摘要.IAbstract.II第1章緒論.1第2章配氣機構(gòu)的簡介.22.1配氣機構(gòu)的工作原理.22.2配氣機構(gòu)的優(yōu)點及應用.22.3配氣機構(gòu)橫臂零件的作用.32.3.1橫臂零件的作用.32.3.2優(yōu)點.32.3.3缺點.3第3章配氣機構(gòu)橫臂零件的機械加工工藝規(guī)程.43.1配氣機構(gòu)橫臂零件的工藝分析.43.2配氣機構(gòu)橫臂零件的機械加工工藝規(guī)程.43.2.1生產(chǎn)類型的確定.43.2.2材料及毛坯的選擇.53.3配氣機構(gòu)橫臂零件加工工藝過程的設(shè)計.53.3.1定位基準的選擇.53.3.2加工方法的選擇.53.3.3加工順序的安排.63.3.4配氣機構(gòu)橫臂零件加工工藝過程的確定.63.4工序設(shè)計.93.4.1工時定額的計算.93.4.2機床的選擇.93.4.3工藝裝備的選擇.93.4.4加工余量及工序尺寸的確定.93.4.5具體的工序計算過程.10第4章專用夾具設(shè)計.244.1夾具的設(shè)計要求.244.2銑無凸臺面夾具設(shè)計-銑床專用夾具.244.3鉆16孔及M18孔夾具設(shè)計-鉆床專用夾具.25II結(jié)論.28致謝.29參考文獻.30I摘要本課題來源于生產(chǎn)實踐，充分利用所學的機械制圖、機械設(shè)計及機械制造等課程，了解針對配氣機構(gòu)的特點，通過CAD軟件，利用該軟件制圖功能，完成配氣機構(gòu)橫臂零件銑鉆孔夾具的設(shè)計。在課題的研究設(shè)計階段，首先從眾多的零件中選擇一個作為設(shè)計夾具的零件。針對該零件的結(jié)構(gòu)特點，制定該零件的加工工藝。其次要了解夾具的相關(guān)知識，結(jié)合零件的結(jié)構(gòu)特點選擇需要的夾具元件，設(shè)計出夾具的大體結(jié)構(gòu)。機床夾具作為一種重要的工藝裝備在機械制造工藝過程中起著十分重要的作用，它的設(shè)計不但要保證工件的加工質(zhì)量，提高加工效率，降低成本，在操作維護中安全方便還要注意到夾具結(jié)構(gòu)的標準化，夾具制造的精密化。為了保證夾具組裝精度，需要學習了解工件定位原理。根據(jù)這些原理結(jié)合零件的結(jié)構(gòu)特點確定零件在夾具中以一面兩孔作為定位，計算夾具的定位精度與夾緊力保證零件在夾具上的加工精度。然后使用CAD繪圖軟件參考夾具設(shè)計手冊繪制夾具元件的機械圖，完成夾具的設(shè)計。關(guān)鍵詞：橫臂工藝夾具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