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1、桂林理工大學(xué)本科畢業(yè)設(shè)計(jì)·論文摘要本次設(shè)計(jì)的內(nèi)容是某轎車前車門外板的沖壓模具，分析了汽車覆蓋件及其沖壓模具的特點(diǎn)及要求。汽車覆蓋件的尺寸大結(jié)構(gòu)屬于復(fù)雜的曲面結(jié)構(gòu)，零件表面的質(zhì)量要求高，因此對其模具的設(shè)計(jì)也比較復(fù)雜。該零件的數(shù)學(xué)模型為由曲面構(gòu)成的非參數(shù)化特征，首先利用UG軟件繪制該零件的三維造型，再對其成形特點(diǎn)和成形工藝進(jìn)行分析，為了得到合格的零件產(chǎn)品，必須先進(jìn)行生產(chǎn)方案的分析與確定。再利用Dynaform軟件進(jìn)行數(shù)值模擬分析，借助軟件對其拉深方向、工藝補(bǔ)充、坯料尺寸、零件的成形極限、厚度變化情況和拉延力等進(jìn)行
2、分析計(jì)算，最后是對其成形模具進(jìn)行設(shè)計(jì)。拉延模的設(shè)計(jì)是本設(shè)計(jì)的重點(diǎn)，包括沖壓方向的確定、內(nèi)外工藝補(bǔ)充面、壓料面的確定、拉延筋的設(shè)計(jì)、工藝計(jì)算等，重點(diǎn)對拉延凸模、凹模、壓邊圈進(jìn)行設(shè)計(jì)，還有對頂件裝置、導(dǎo)向裝置、合模限位裝置、起吊裝置和通氣孔等進(jìn)行設(shè)計(jì)。工件在拉延成形之后需要進(jìn)行修邊和沖孔，在這里以拉延模為基礎(chǔ)對修邊沖孔模進(jìn)行簡單的設(shè)計(jì)和說明，完成工件的沖壓成形。最后繪制了拉延模具的二維裝配圖和部分零件圖。關(guān)鍵詞：車門外板；覆蓋件；工藝分析；模具設(shè)計(jì)；UGV桂林理工大學(xué)本科畢業(yè)設(shè)計(jì)·論文Thedesignofcar
3、doorpanelsstampingdieStudent:ZHENGZhiTeacher:TANKai-shunTANGLu-wenSUNBao-fuAbstract:Thecontentisdesignedforacarbeforethecardoorpanelstampingdies,analyzesandstampingautomotivepanelcharacteristicsandrequirements.Largesizestructureofanautomobilecoveringpartsar
4、ecomplexsurfacestructure,highqualityrequirementsofthepartsurface,sothedesignoftheirmoldsmorecomplicated.Mathematicalmodelofthepartofthegroundsofnon-parametricfeaturecurvedsurface,thefirstuseofUGsoftwaretodrawthree-dimensionalmodelingofthepart,andthenanalyze
5、dthecharacteristicsshapingandformingprocesses,inordertogetqualifiedpartsproductsmustbeproducedprogramsAnalysisanddetermination.ReuseDynaformnumericalsimulationanalysissoftware,withthesoftwaretoitsdrawingdirection,forminglimitaddendum,blanksize,partthickness
6、changesanddrawingforceofanalysisandcalculation,andfinallythedesignofitsmold.Drawingdiedesignisthefocusofthisdesign,includingstampingdirectionisdetermined,bothinsideandoutsideaddendum,binderdeterminationdrawbeaddesign,processcalculation,focusingondrawingpunc
7、h,die,blankholderringdesign,aswellasfortoppiecesofequipment,guides,clampingstopper,liftingdeviceandthevent,etc.design.Afterformingtheworkpiecedrawingneededtrimmingandpunching,drawingdieinherewiththebasisfortrimmingpunchingdiedesignandsimpleinstructionstocom
8、pletethestampingworkpieceshape.Finally,drawthetwo-dimensionaldrawingdieassemblydrawingandsomepartsFig.Keywords：cardoorpanels；cover；processpnalysis；molddesign；UGV桂林理工大學(xué)本科畢業(yè)設(shè)計(jì)·論文目次摘要IAbstractII1緒論11.1概述1
