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1、加工支座組合夾具虛擬拼裝設(shè)計(jì)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(duì)不同的工件對(duì)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(jì)，第一章先對(duì)機(jī)床夾具和組合夾具的概念、作用和發(fā)展趨勢(shì)做出了明確的說明。從第二章到第五章分別對(duì)車Φ28H8孔零件的組合夾具設(shè)計(jì)、銑A、C兩平面零件的組合夾具設(shè)計(jì)、刨B面及槽零件的組合夾具設(shè)計(jì)、鉆2-M10底孔零件的組合夾具設(shè)計(jì)進(jìn)行了詳細(xì)的闡述，每
2、章都通過零件圖的分析、零件的組合夾具設(shè)計(jì)方案的擬定、零件的組合夾具的總體設(shè)計(jì)、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(xiàng)精度要求的分析、組裝過程及注意要點(diǎn)、本夾具的使用操作過程說明、本夾具的優(yōu)缺點(diǎn)分析。關(guān)鍵詞：支座組合夾具定位夾緊6VirtualAssemblyofSupportProcessingModularFixtureABSTRACTModularfixtureisbasedonthestandardizati
3、onoffixtureparts,accordingtotheprincipleofmodular,andmachiningobjectandaccordingtodifferentrequirements,becomestheassemblingfixture.Afterusing,Fixturecanberemovedtoanewassemblyfixture.Itismainlyusedforsinglepiece,smallbatchandmorevarietiesofproductionandinthenumericalcontrolprocessing.Itisakin
4、dofmoreeconomicfixture.Ithasbasicpopularization,eachcityandeachbigfactoryallhavetheirowncombinationfixturestandard.Thefifthchaptersinthispaper,introducestheprocessingsupportmodularfixturedesign.Thefirstchapterintroducethemachinetoolfixtureandtheconcept,functionanddevelopmenttrendofthemodularfi
5、xtureveryclearly.Fromchapter2tochapter5respectivelyintroducethedesignofΦ28h8holepartsofmodularfixture,millingAandCtwoplanepartsofmodularfixture,planesurfaceandgroovepartBofmodularfixture,drillingand2-M10bottomintakeofmodularfixture.Eachchaptercompletestheanalysisofpartdrawing,partsofmodularfix
6、turedesignschemeproposed,thecomponentsoftheoveralldesignofmodularfixture,fixtureassemblyengineeringdimensionaltoleranceandtechnicalrequirementsofmarkingonthedrawing,partsinthefixturelocatingschemeanalysis(fromtheanalysisofthepartdrawingshouldlimitfreedomwhich,fromtheanalysisoffixturelocatingsc
7、hemewhichhaslimitedthedegreeoffreedom,positioningschemecomparison),partsinthefixtureclamping,processingerroranalysis,.Inordertoensurethattherequirementofaccuracyinthedetaildrawingsofvariousanalysis,assemblyprocessandkeypoints,theuseofth
