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1、毕业设计英文翻译翻译题目:机床夹具的分类与构成学生姓名:所在班级:Machineclassificationandposefixture1fixtureintheroleofmachiningWorkpiececlampingfixtureisakindofprocessequipment,itiswidelyusedinmechanicalmachiningofthemanufacturingprocess,heattreatment,assembly,weldingandtestingprocesses.Intheuseof
2、metal-cuttingmachinetoolscollectivelyreferredtoasthejigfixture.namodernproductionmachineisanindispensablefixtureoftheprocessequipment,machiningoftheworkpiece,theprocessingrequirementsinordertoensure.Firstofalltotheworkpieceandthemachinetoolrelativetoacorrectposition,
3、andthislocationduringprocessingdoesnotchangetheimpactofexternalforces.Tothisend,duringthepre-machining,workpiececlampingmustbegood.Therearetwowaystoclampworkpiece:oneisdirectlyclampingtheworkpieceinthemachinetableoronthechuck;Theotheristheworkpieceinthefixtureonthefi
4、xture.Thefirstmethodusedwhentheworkpiececlamping,thegeneraldesignrequirementshavetopresslinesinthesurfacetodrawthesizeandlocation,clamping,orwhentheneedleiszoneddialindicatortofindisaftertheclamping.Thismethodneedspecialequipment,butlowefficiency,aregenerallyusedforo
5、ne-pieceandsmallbatchproduction.Largequantities,mostlywiththeworkpiececlampingfixture.Withthemeritsoftheworkpiececlampingfixturesareasfollows:(l)Guaranteethestabilityofthemachiningaccuracyofworkpiece.Workpieceswithclampingfixture,theworkpiecerelativetothelocationofto
6、olandmachinetooltoensuretheaccuracyofthefixturefromthetechnicallevelofworkers,sothatanumberofworkpiecemachiningaccuracyoftheline.(2)Toimprovelaborproductivity.Workpiececlampingfixturecanfacilitatetheusereasily、rapidly,andtheworkpiecedoesnotneedtofindiscrossed,cansign
7、ificantlyreducethesupplementaryworkinghours,toimprovelaborproductivity;workpieceinthefixtureafterthefixturetoimprovetherigidityoftheworkpiece,thuscuttingtheamountofincrease,toimprovelaborproductivity;canusemorepiecesofmulti-workpiececlampingfixture,andtheuseofefficie
8、ntclampingbodies,tofurtherimprovelaborproductivity.(3)Toexpandtheuseofmachinetools.Machinetoolsingeneraluseadedicatedmachinetoolfix
