塑料带轮模流分析及模具设计论文[带图纸].doc

编号无锡太湖学院毕业设计（论文）题目塑料带轮模流分析及模具设计信机系机械工程及自动化专业学号学生姓名指导教师（职称副教授）（职称）2013年5月25日无锡太湖学院本科毕业设计（论文）诚信承诺书本人郑重声明所呈交的毕业设计（论文）塑料带轮模流分析及模具设计是本人在导师的指导下独立进行研究所取得的成果，其内容除了在毕业设计（论文）中特别加以标注引用，表示致谢的内容外，本毕业设计（论文）不包含任何其他个人、集体已发表或撰写的成果作品。班级机械96学号0923263作者姓名2013年5月25日I摘要塑料工业是当今世界上增长最快的工业门类之一，而注射模具是其中发展较快的种类。塑料注射成型模具的特点是能一次成型外形复杂、尺寸精密的塑料制品，对各种塑料的适应性强，成型周期短，生产效率高，产品质量稳定，易于实现生产自动化。因此，应用计算机辅助塑料模具设计，对缩短模具设计时间，提高塑料制品质量和生产效率有很大意义。本设计主要针对塑料带轮零件，应用计算机辅助模具设计。设计中首先根据塑料制品要求拟定成型工艺方案、初选成型设备、确定模具结构方案，设计浇注系统并进行模流分析、选用模架、选择和校核注射机，完成模具型腔设计并对模具主要零件设计计算，然后应用PRO/E软件，完成整副模具的三维设计，并对模具进行了虚拟装配和试模，针对其中出现的问题，对模具进行了修改，最后导出模具二维工程图。通过本设计，我对注塑模具设计有一个比较全面的认识，加深了对模具结构及工作原理的理解，了解了模具设计中应注意的一些具体细节问题，学会了查阅和收集资料的方法学会了如何应用PRO/E软件，完成注射模设计，从而有效地提高了设计工作效率。关键词塑料制品注射模具计算机辅助设计PRO/EIIAbstractTheplasticsindustryisthefastestgrowingintheworldtodayoneoftheindustrycategories,theinjectionmoldisoneoftherapiddevelopmentofthespecies.ThecharacteristicsoftheplasticinjectionmoldCanformingacomplexshape,size,precisionplasticproducts,adaptabilityofvariousplastic,moldingcycleisshort,highproductionefficiency,productqualityandstability,easytoimplementproductionautomation.Therefore,theapplicationofcomputeraidedplasticmolddesign,reducemolddesigntime,improvequalityandproductionefficiencyofplasticproducts.Thedesignismainlyforplasticpulleyparts,computeraidedmolddesign.Designpreparedaccordingtotherequirementsoftheplasticproductsmoldingprocesssolutionsprimariesmoldingequipment,moldstructureoftheprogramisdetermined,thedesignofgatingsystemandmoldflowanalysis,selectionofmold,selectandcheckinjectionmachine,completemoldcavitydesignandmoldThemainpartsofthedesigncalculations,AndthenapplythePRO/Esoftware,tocompletetheentirepairofthreedimensionalmolddesign,moldvirtualassemblyandtestmode,problemsforwhichthemoldhasbeenmodified,andfinallyexportmoldtwodimensionaldrawings.Thedesign,injectionmolddesignhasamorecomprehensiveunderstanding,deepentheunderstandingofthemoldstructureandworkingprincipleandtounderstandingmolddesignshouldpayattentiontosomeofthespecificdetails,learnedhowtoaccessanddatacollectionmethodsSocietyhowtoapplyPRO/Esoftware,tocompletethedesignofinjectionmold,therebyeffectivelyimprovingtheefficiencyofthedesign.KeywordsPlasticproductsinjectionmoldcomputeraideddesignPRO/EIII目录摘要..............................................................................................................................................IAbstract..........................................................................................................................................II目录...........................................................................................................................................III1绪论.............................................................................................................................................11.1塑料工业的发展及用途.......................................................................................................11.2塑料模具在塑料制品生产中地位.......................................................................................11.3本文主要研究内容...............................................................................................................22塑件成型工艺分析.....................................................................................................................32.1概述......................................................................................................................................32.2零件的材料和注塑工艺......................................................................................................32.2.1材料ABS.......................................................................................................................32.2.2注射成型工艺分析........................................................................................................32.3确定模具温度及冷却方式..................................................................................................42.4零件的三维图和二维图......................................................................................................42.5带轮的结构与精度分析......................................................................................................52.6塑料制品的几何形状..........................................................................................................52.7注射机的选择......................................................................................................................52.7零件图及其尺寸公差..........................................................................................................63模具总体结构设计及零部件的设计.........................................................................................73.1型腔数目的确定..................................................................................................................73.2分型面的设计......................................................................................................................73.3浇注系统的设计..................................................................................................................83.3.1主流道............................................................................................................................83.3.2分流道............................................................................................................................93.3.3浇口..............................................................................................................................103.4冷却及排气系统设计........................................................................................................103.4.1排气系统的设计..........................................................................................................103.4.2冷却系统的设计..........................................................................................................103.5影响塑件尺寸精度的因素.................................................................................................103.6模具零件工作尺寸的计算.................................................................................................113.7凹模底板厚的确定............................................................................................................124合模导向机构的设计...............................................................................................................134.1导向机构的总体设计........................................................................................................134.2导柱设计............................................................................................................................134.3导套设计............................................................................................................................134.4推板导柱与导套设计........................................................................................................145脱模推出机构的设计...............................................................................................................15