基于CAD模型的装配精度预测.pdf

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1、Ꮉ⿟⸩຿ᄺԡ䆎᭛෎ѢCAD῵ൟⱘ㺙䜡㊒ᑺ乘⌟ASSEMBLYACCURACYPREDICTIONBASED-ONCADMODEL⥟吣ڷξٝྜӖ༰2012ᑈ7᳜೑ݙ೒кߚ㉏ো˖TH164ᄺ᷵ҷⷕ˖10210213೑䰙೒кߚ㉏ো˖U621ᆚ㑻˖݀ᓔᎹ⿟⸩຿ᄺԡ䆎᭛෎ѢCAD῵ൟⱘ㺙䜡㊒ᑺ乘⌟⸩຿ⷨお⫳˖⥟吣ᇐᏜ˖ᴢᓎᑓᬭᥜ⬇䇋ᄺԡ˖Ꮉ⿟⸩຿ᄺ⾥˖ᴎẄᎹ⿟᠔೼ऩԡ˖ᴎ⬉Ꮉ⿟ᄺ䰶ㄨ䕽᮹ᳳ˖2012ᑈ7᳜ᥜќᄺԡऩԡ˖જᇨⒼᎹϮ໻ᄺClassifiedIndex:TH164U.D.C.:U621DissertationfortheMasterDegreeinE

2、ngineeringASSEMBLYACCURACYPREDICTIONBASED-ONCADMODELCandidate˖WangPengSupervisor˖Prof.LiJianguangAcademicDegreeAppliedfor:MasterofEngineeringSpecialty˖MechanicalEngineeringAffiliation˖SchoolofMechatronicsEngineeringDateofDefence˖July,2012Degree-Conferring-Institution:HarbinInst

3、ituteofTechnologyજᇨⒼᎹϮ໻ᄺᎹ⿟⸩຿ᄺԡ䆎᭛ᨬ㽕䅵ㅫᴎ䕙ࡽ݀Ꮒ䆒䅵(ComputerAidedTolerancingˈㅔ⿄CAT)ᰃ߽⫼䅵ㅫᴎᡔᴃᇍࠊ䗴䖛⿟Ёѻકⱘ݀Ꮒ䖯㸠䆒䅵੠Ӭ࣪ˈҢ㗠ᅲ⦄⫳ѻ਼ᳳǃࠊ䗴៤ᴀ੠ѻક䋼䞣ⱘ㊒⹂᥻ࠊDŽ೼ѻકⱘ㺙䜡䆒䅵䰊↉៪㗙ѻકⱘ㺙䜡ᅲᮑ䰊↉ˈ߽⫼䅵ㅫᴎ䕙ࡽᎹ݋ˈߚᵤѻકⱘ䆒䅵݀Ꮒ៪㗙ѻકⱘᅲ䰙ࡴᎹ䇃Ꮒˈ乘⌟ߎѻકⱘ㺙䜡㊒ᑺˈ߽⫼乘⌟ؐᴹ䆘Ӌ㺙䜡䋼䞣Ϣѻકᗻ㛑ˈ↨䕗㺙䜡㒧ᵰᰃ৺⒵䎇䆒䅵㽕∖੠Փ⫼䳔∖ˈ䖯㗠䖒ࠄ䙓ܡ㺙䜡ᮍḜ䫭䇃ǃޣᇥ㺙䜡䇗ᭈ⃵᭄ⱘⳂⱘDŽᴀ᭛佪ܜ೼ߚᵤPro/ENGINEER㺙䜡῵ൟⱘ㒧

4、ᵘ⡍⚍ⱘ෎⸔Ϟˈ䆒䅵㺙䜡㊒ᑺᙃⱘ᭄᥂㒧ᵘˈᑊ᥶おབԩҢCAD㺙䜡῵ൟЁᦤপⳌ݇㺙䜡ᙃDŽ✊ৢˈ䆒䅵ᱎ㛑᧰㋶ㅫ⊩ҹ㦋ᕫޚ⹂ⱘ㺙㑺䫒DŽⷨお㾷އሎᇌԡ㕂ᦤপǃ݊ᅗᙃⱘ䅵ㅫㄝ䯂乬ⱘᮍ⊩ˈᅲ⦄㺙䜡ሎᇌ䫒㞾ࡼ⫳៤DŽ✊ৢˈᴀ᭛ҹ㺙䜡ሎᇌ䫒ⱘ㊒ᑺ䅵ㅫЎߎথ⚍ˈᓎゟϝ㓈㺙䜡ሎᇌ䫒೒ˈ㓐ড়ߚᵤњϡৠⱘ݀Ꮒߚᵤᮍ⊩ˈᑊℷњϝ㓈㺙䜡ሎᇌ䫒ⱘ䅵ㅫ݀ᓣˈ䗮䖛㓐ড়㗗㰥ᕅડ㺙䜡㊒ᑺⱘሎᇌ݀Ꮒǃᔶԡ䇃Ꮒǃ⦃๗⏽ᑺҹঞ݀Ꮒߚᵤᮍ⊩ㄝᮍ䴶ᕅડ಴㋴ˈᓎゟњ㺙䜡㊒ᑺ乘⌟ⱘ᭄ᄺ῵ൟDŽ᳔ৢˈ෎ѢPro/ENGINEER߽⫼MicrosoftVisualStudioᓔথњ㺙䜡㊒ᑺ乘⌟ॳൟ㋏㒳ˈᑊ䆒䅵

5、㺙䜡㊒ᑺ↨䕗ᅲ偠DŽ䆹ॳൟ㋏㒳೼CAD⦃๗ϟᕫࠄⱘ乘⌟ؐϢᅲ䰙⌟䞣ؐⱘأᏂǃ乘⌟ؐϢ䆒䅵㽕∖ؐⱘأᏂഛ೼ৃܕ䆌㣗ೈݙDŽ݇䬂䆡˖㺙䜡㊒ᑺ˗㺙䜡ᙃ᭄᥂㒧ᵘ˗㺙䜡ሎᇌ䫒˗CADѠ⃵ᓔথ-I-જᇨⒼᎹϮ໻ᄺᎹ⿟⸩຿ᄺԡ䆎᭛AbstractCAT(ComputerAidedTolerancing)isthedesignandoptimizationonthetoleranceoftheproductinthemanufacturingwithintheuseofcomputertechnology,inordertoachievetheprecisecontro

6、loftheproductioncycle,manufacturingcostsandproductquality.Analysisofdesigntolerancesandactualmachiningerroroftheproductintheassemblydesignstageandproductassembly,istousecomputer-aidedtoolstopredicttheaccuracyofproductassembly,thenthepredictivevalueisusedtoevaluatetheassemblyqua

7、lityandproductperformance,comparedwithassemblyresultstomeetthedesignrequirementsandneeds,inordertoavoidthemistakeoftheassemblyprogramandreducethenumberoftheassemblyadjustment.Inthethesis,thestructureofdataofassemblyinformationisestablishedonanalysisofthecharactersofPro/ENGINEER

8、assemblymodel,andthemethodtopickupinformationfromCADis