毕业设计 汽车顶盖拉延模设计

合肥工业大学毕业设计1/26目录中文摘要.....................................................................................错误!未定义书签。外文摘要.....................................................................................错误!未定义书签。1绪论......................................................................................................................51.1汽车覆盖件模具..............................................................................................51.1.1汽车覆盖件模具的特点和要求..............................................................51.1.2汽车覆盖件模具发展现状与趋势.................................................61.2基于UG的覆盖件模具设计...........................................................................71.2.1UG软件的功能................................................................................71.2.2UG在覆盖件模具中的应用及问题................................................81.3本课题的研究意义..........................................................................................82汽车顶盖冲压工艺设计要求..............................................................................102.1DL信息的获取............................................................................................102.2拉延模具设计总体要求.................................................................................102.2.1整体结构选择.......................................................................................102.2.2拉延模设计要求....................................................................................112.3计算.................................................................................................................122.3.1拉延力的计算.......................................................................................122.3.2压料力计算.........................................................................................132.3.3总冲压力计算.......................................................................................132.4材料选择......................................................................................................132.5本章小结.........................................................................................................143汽车顶盖拉延模的三维造型............................................................................153.1汽车顶盖的三维造型.....................................................................................153.1.1DL图预处理过程..................................................................................153.1.2拉伸实体................................................................................................153.1.3修剪........................................................................................................15合肥工业大学毕业设计2/263.1.4导板选择................................................................................................163.2压边圈的三维造型.........................................................................................173.3下模座的三维造型........................................................................................193.4上模座的三维造型........................................................................................213.5装配.................................................................................................................213.6本章小节.........................................................................................................22结论..........................................................................................................................24致谢..........................................................................................................................25参考文献..................................................................................................................26合肥工业大学毕业设计3/26某车型顶盖拉延模具设计摘要:本文以汽车顶盖为实例，具体分析了其成形特点，找出汽车覆盖件冲压件成形的共性。其中说明了汽车覆盖件的成形特点和覆盖件拉深模具设计的基本原则，提出了包括冲压方向、工艺补充面等设计的常用方法。此次，直接用三维造型软件UG构造出覆盖件模具的三维实体模型,完成了覆盖件的模具设计，更真实地反映了模具零件之间的装配关系，减少了实际模具设计带来的一些问题和时间。同时，模具各部分的干涉检查能够方便地在做到，从而提高了汽车覆盖件模具结构的设计效率和设计质量，缩短了模具的设计和制造时间,这对于制造业尤其是模具的设计制造来说尤其重要。关键词:汽车顶盖拉延模设计合肥工业大学毕业设计4/26DrawingdiedesignoftheroofoftheautomobileAbstract:ThispapertakingtheroofoftheautomobileasanexampletheformingcharacteristicsofthefrontfloorpanwereanalyzedaswellasthecommonpropertiesofAutomobilepanel.Theformingcharacteristicsofautomobilepanelsandfundamentalsofmoulddesignfordrawingdiesarepresentedinthispaper,includingstampingdirection,addendumbindersurface.Thistime，three-dimensionalpartmodelingandmoulddesigningareperformedinUG，it'sconvenientlyandquicklycomparedwithtraditionalways.Itcanshowthepartrelationofthediemoreactually,reducethedefectsofthediedefectsofthediedesigninginpracticeandsavethetime.Atthesametime，theinterferenceproblemofthediecouldbedonewellbyusingthesoftUG,sotheautocoverdiestructuredesigncanbeimprovedefficientlyandthetimeofdiemanufacturecanbeshorten，thisisveryimpotanttomanufacturingindustry,especiallythemoulddiedesignandproduse.Keywords:theroofoftheautomobiledrawingdiedesign合肥工业大学毕业设计5/261绪论国民经济五大支柱产业——机械、电子、汽车、石油化工和建筑都要求模具工业的发展与之相适应，都需要大量模具，特别是汽车工业，在入世，经济好转的情况下，其发展势头越来越猛，而作为其主要制造部分的覆盖件模具的设计及制造业得到了空前的发展。1.1汽车覆盖件模具汽车覆盖件模具是车身制造的重要装备，也是企业提高汽车开发、