摩托车尾灯罩模具设计

I摘要本文详细地阐述了盖注射模具的设计过程。设计了注射模具中的各个系统，如浇注系统、导向与定位机构、侧向分型与抽芯机构，并对塑料材料性能进行了分析。根据塑件的产品数量要求，以及结构要求，该模具采用一模一腔。整个设计过程都是用CAD软件进行参数化设计，使整个模具设计过程简单明了。利用MPA软件进行模流分析，为模具设计和成型工艺的指定提供参照依据。使用CAD软件设计成型零件以及非标零件，从而进行全方面的参数化设计，即对模具进行分模、生成元件、装配、试模、开模等设计。调用标准模架以及标准件，从而完成模具的整体设计。直接指导生产。针对塑件的特点，本模具设计了侧抽芯滑块机构，也构成了本次模具设计的主要内容。关键词：注射模；参数化设计；侧抽芯和滑块；灯罩IIAbstractThispaperdescribesthedesignprocessoftheplasticinjectionmold.Designofthesystemintheinjectionmold,suchaspouringsystem,positioningmechanismforhorizontalorientation,core-pullingmechanism,analysisandplasticmaterialperformance.Accordingtothenumberofplasticproducts,andconstructionrequirements,theuseofthemoldcavity.ParameterizeddesignofCADsoftwareofthewholedesignprocess,thedesignprocessofthemouldissimple.FlowanalysisusingtheMPAsoftwaremodule,providingreferencesformolddesignandmoldingprocess.CADsoftwaredesignofmoldingparts,non-standardparts,sotheparametricdesign,inallaspectsofthatrelease,thegeneratingelement,assembly,testmode,molddesign.Callthestandardmouldbaseandstandardparts,soastocompletethewholedesignofthedie.Directproduction.Accordingtothecharacteristicsoftheplasticparts,molddesigncorepumpingmechanismontheside,andalsothemaincontentsofmolddesign.Keywords:injectionmold;parametricdesign;sidecorepullingtheslider;thelampshade.Keywords:injectionmould;parametricdesign;sidecorepullingandslidingblock;thelampshade目录摘要...........................................................I1前言...........................................................11.1模具行业发展的现状...........................................11.2我国模具发展的现状...........................................11.3参数化技术慨述...............................................21.4选题目的以及意义.............................................32塑件成型工艺性分析............................................42.1摩托车尾灯罩二维图...........................................42.2结构特征分析及成型工艺性分析.................................42.2.1结构特征分析...............................................42.2.2成型工艺性分析.............................................42.2.3塑件材料的基本性能.........................................52.2.4塑料的成型收缩率...........................................52.2.5塑件材料的流动性...........................................53塑件成型工艺与设备.............................................63.1注塑成型工艺条件.............................................63.1.1温度.......................................................63.1.2压力.......................................................63.1.3时间.......................................................63.2注射机型号的确定.............................................83.2.1由公称注射量选择注射机.....................................83.2.2由锁模力选择注射机.........................................83.3型腔数量以及注射机有关工艺参数的校核.........................93.3.1型腔数量校核...............................................93.3.4注射压力校核..............................................113.3.5安装尺寸校核..............................................114注射模具结构设计.............................................144.1型腔的确定..................................................144.2制品成型位置及分型面的选择..................................144.3浇注系统设计................................................144.3.1主流道设计................................................154.3.2冷料穴的设计..............................................174.3.3分流道设计................................................174.3.4浇口的位置、数量的确定....................................184.3.5剪切速率的校核............................................19（1）主流道剪切速率校核...............................................................194.3.6排气系统设计..............................................204.4成型零部件设计..............................................214.4.1凹模结构设计与计算........................................214.4.2型芯结构设计与尺寸计算....................................234.5模架的选用..................................................254.5.1型腔侧壁以及底板厚度尺寸..................................254.5.2模具高度尺寸的确定........................................264.6导向与定位机构..............................................274.7脱模机构的设计..............................................274.7.1脱模力的计算..............................................284.7.2推件板脱模机构设计........................................294.8侧向分型与抽芯机构设计......................................294.8.1斜导柱的设计..............................................304.8.2滑块的设计................................................324.8.3楔紧块的设计..............................................334.8.4斜导柱抽芯机构中的干涉现象................................344.9.2.冷却系统的设计原则........................................374.10模具成型零部件材料的选择...................................374.12模具的装配过程.............................................384.13模具运动分析过程...........................................395试模..........................................................405.1试模过程....................................................405.2试模过程中可能产生的缺陷、原因以及调整方法..................405.3试模过程记录................................................426结论..........................................................43致谢...........................................................44参考文献........................................................44附录一.....