某汽車發(fā)動機汽缸蓋機械加工工藝與工裝設(shè)計

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1、某汽車發(fā)動機汽缸蓋機械加工工藝與工裝設(shè)計某汽車發(fā)動機汽缸蓋機械加工工藝與工裝設(shè)計摘要機械的制造工藝過程通?？煞譃闊峒庸すに囘^程（包括鑄造、塑性加工、焊接、熱處理、表面改性等）及冷加工工藝過程。它們都是改變生產(chǎn)對象的形狀、尺寸、相對位置和性質(zhì)等，使之成為產(chǎn)品或半產(chǎn)品的過程。伴隨著機械制造工藝的發(fā)展，機床夾具正向著標(biāo)準(zhǔn)化、精密化、高效化和柔性化等方向發(fā)展。夾具的主要功能就是完成工件的裝夾工作。工件裝夾情況的好壞，將直接影響工件的加工質(zhì)量。本次設(shè)計，結(jié)合近年來國內(nèi)外內(nèi)燃機行業(yè)加工的發(fā)展的新趨勢，以CS492Q汽缸蓋為參考

2、對象，對它的機械加工工藝進行了分析和計算，分析了和設(shè)計了汽缸蓋機械加工生產(chǎn)線工序、關(guān)鍵工藝技術(shù)和設(shè)備、工藝應(yīng)用狀況及主要優(yōu)缺點。設(shè)計了汽缸蓋某一道典型加工工序（鉆上底面面和下底面面孔）的夾具。本設(shè)計首先分析了汽缸蓋零件的作用和加工工藝性，然后進行工藝規(guī)程設(shè)計，最后是夾具設(shè)計。合理安排工藝路線，是保證加工質(zhì)量和經(jīng)濟性的關(guān)鍵。合理的夾具可以縮短輔助時間，提高勞動生產(chǎn)率，保證加工精度，穩(wěn)定加工質(zhì)量，降低對工人的技術(shù)要求，擴大機床工藝范圍。本文還對所設(shè)計的專用夾具進行了精度校核和定位誤差分析，對夾具的設(shè)計質(zhì)量也進行了評估。

3、關(guān)鍵詞：汽缸蓋；工藝分析；工藝規(guī)程設(shè)計；夾具設(shè)計某汽車發(fā)動機汽缸蓋機械加工工藝與工裝設(shè)計ThemachiiningprocessandffixtturedesignoftheCylinder--headAbstractThemachiningprocesscangenerallybedividedintotheprocessofhotworking(includingcasting,plasticforming,welding,heattreatment,surfacemodification,etc.)andth

4、eprocessofcoldworking.Theyarealltheprocessesofchangingtheshape,si-ze,relativepositionandpropertyofproductionobjectsformakingthemintoproductsorsemi-products.Withthedevelopmentofmachiningprocess,machinefixtureisdev-elopingtowardthedirectionofstandardization,prec

5、ision,highefficiencyandflexibilit-yetc.Themainfunctionofthefixtureistoclamptheworkpiece.Thequalityofcla-mpingworkpiecewilldirectlyaffectthemanufacturingqualityoftheworkpiece.Inthisdesign,combinedwithinternalcombustionenginesdevelopmentofprocessingindustryathom

6、eandabroadinrecentyears,anewtrendtoCS492Qcylinderheadasareferenceobject,anditsmachiningprocesshasbeenanalyzedandcalculated,analyzedanddesignedaproductionlineofcylinderheadmachiningprocess,Keytechnologyandequipment,processandapplicationstatusandmainadvantagesan

7、ddisadvantages.Roadcylinderheaddesignofatypicalmachiningoperations(drilling,underthebottomsurfaceandbottomfaces)ofthefixture.First,thedesignofthecylinderheadpartoftheroleandprocessingtechnology,andthenproceedtoprocessplanningandfinallythefixturedesign.Routerat

8、ionalizationprocess,toensureprocessingqualityandeconomyofthekey.Reasonableauxiliaryfixturecanreducetime,improveproductivityandensureprecision,stability,processingqualityandreduceth