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1、天津理工大學(xué)本科畢業(yè)設(shè)計說明書加工支座組合夾具虛擬拼裝設(shè)計摘要組合夾具是在夾具零部件完全標(biāo)準(zhǔn)化的基礎(chǔ)上,根據(jù)積木化原理,針對不同的工件對象和加工要求,拼裝組合而成的夾具。夾具用完后可進(jìn)行拆卸,留待組裝新的夾具。它主要用于單件、中小批多品種生產(chǎn)和數(shù)控加工中,是一種較經(jīng)濟(jì)的夾具。目前已基本普及,各城市及各大工廠均有自己的組合夾具站。本文通過五章內(nèi)容介紹了加工支座組合夾具的設(shè)計,第一章先對機床夾具和組合夾具的概念、作用和發(fā)展趨勢做出了明確的說明。從第二章到第五章分別對車Φ28H8孔零件的組合夾具設(shè)計、銑A、C兩平面零件的組合夾具設(shè)計、刨B面及槽零件的
2、組合夾具設(shè)計、鉆2-M10底孔零件的組合夾具設(shè)計進(jìn)行了詳細(xì)的闡述,每章都通過零件圖的分析、零件的組合夾具設(shè)計方案的擬定、零件的組合夾具的總體設(shè)計、夾具裝配工程圖上尺寸公差及技術(shù)要求的標(biāo)注、零件在夾具中的定位方案分析(從零件圖分析應(yīng)限制哪些自由度、從夾具定位方案分析已限制了哪些自由度、定位方案論證)、零件在夾具中的夾緊、零件加工誤差的分析、保證零件圖各項精度要求的分析、組裝過程及注意要點、本夾具的使用操作過程說明、本夾具的優(yōu)缺點分析。關(guān)鍵詞:支座組合夾具定位夾緊VirtualAssemblyofSupportProcessingModular天津
3、理工大學(xué)本科畢業(yè)設(shè)計說明書FixtureABSTRACTModularfixtureisbasedonthestandardizationoffixtureparts,accordingtotheprincipleofmodular,andmachiningobjectandaccordingtodifferentrequirements,becomestheassemblingfixture.Afterusing,Fixturecanberemovedtoanewassemblyfixture.Itismainlyusedforsinglep
4、iece,smallbatchandmorevarietiesofproductionandinthenumericalcontrolprocessing.Itisakindofmoreeconomicfixture.Ithasbasicpopularization,eachcityandeachbigfactoryallhavetheirowncombinationfixturestandard.Thefifthchaptersinthispaper,introducestheprocessingsupportmodularfixturede
5、sign.Thefirstchapterintroducethemachinetoolfixtureandtheconcept,functionanddevelopmenttrendofthemodularfixtureveryclearly.Fromchapter2tochapter5respectivelyintroducethedesignofΦ28h8holepartsofmodularfixture,millingAandCtwoplanepartsofmodularfixture,planesurfaceandgroovepartB
6、ofmodularfixture,drillingand2-M10bottomintakeofmodularfixture.Eachchaptercompletestheanalysisofpartdrawing,partsofmodularfixturedesignschemeproposed,thecomponentsoftheoveralldesignofmodularfixture,fixtureassemblyengineeringdimensionaltoleranceandtechnicalrequirementsofmarkin
7、gonthedrawing,partsinthefixturelocatingschemeanalysis(fromtheanalysisofthepartdrawingshouldlimitfreedomwhich,fromtheanalysisoffixturelocatingschemewhichhaslimitedthedegreeoffreedom,positioningschemecomparison),partsinthefixtureclamping,processingerroranalysis,.Inordertoensur
8、ethattherequirementofaccuracyinthedetaildrawingsofvariousanalysis,assemblyp