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I西南科技大学城市学院本科生毕业论文基于CAD/CAM/CAPP的按钮注塑模具设计与制造工艺摘要：模具是塑料成型加工的一种重要的工艺装备，同时又是原料和设备的“效益放大器”，模具生产的最终产品的价值，往往是模具自身价值的几十倍、上百倍。因此，模具工业已成为国民经济的基础工业，被称为“工业之母”。模具生产技术的高低，已成为衡量一个国家产品制造技术的重要标志。塑料成型加工及模具技术不仅随着高分子材料合成技术的提高、成型设备成型机械的革新、成型工艺的成熟而进步，而且随着计算机技术、数值模拟技术等在塑料成型加工领域的渗透而发展。本文主要讲述了按钮注塑模的设计。内容包括制品材料的选择及材料性能的分析、注射机的选用、浇注系统、成型零件、冷却系统和抽芯机构的设计等部分。除此之外，还包括模具型腔的CAD/CAM/CAPP部分，并利用先进软件将其加工部分直接生成NC文件。本文强调利用现代计算机辅助设计制造技术，运用了NX8.5、CAXA等国内外著名软件进行辅助设计。既保证了产品的质量，缩短了产品更新的周期通过本次毕业设计，对我在大学阶段所学习的模具设计方面知识做了一个很好的总结和巩固，也对平时所学习的比较零散的知识做到了系统化的运用。也发现了自己在学科仍存在很多不足，可以更好的复习和理解，同时对机械制造、加工的工艺有了一个系统、全面的理解，达到了学习的目的。关键词：按钮；注塑模；CAD/CAM/CAPPII西南科技大学城市学院本科生毕业论文2ButtoninjectionmolddesignandmanufacturingprocessbasedonCAD/CAM/CAPPAbstract：Mouldplasticmoldingprocessisanimportanttechnologicalequipmentandrawmaterialsandequipmentbenefit,mouldmanufacturingamplifiers,finalproductvalue,isoftendieworthseveraltimes,ahundredfold.Therefore,themoldindustryhasbecomethefoundationofthenationaleconomywork,calledthemotherofindustry.Mouldmanufacturingtechnology,hasbecomeanationalproductmanufacturingtechnologyoftheimportantsymbol.Theplasticmoldingprocessandmouldtechnologynotonlywiththepolymermaterialssynthesistechnologyimprovementandinnovationofmoldingmachinerymoldingequipment,moldingprocessofpracticeandprogress,andalongwiththecomputertechnology,thenumericalsimulationtechnologyinthefieldofplasticforminganddevelopmentpenetration.Thisarticlemainlydescribedthedesignofinjectionmouldhelmet.Contentsincludethechoiceofmaterialsandproductsofmaterialpropertiesofanalysis,injectionmachineselection,gatingsystem,formingzeroA,coolingsystemandthedesignofcore-pullingmechanismetc.Inaddition,alsoincludingthemoldCAD/CAM,andusetheadvancedsoftwarewillitsprocessingpartsDeliverytotheNCfiles.Thepaperemphasizesusingmoderncomputeraideddesignmanufacturetechnology,usingCAXANX8.5domesticandinternationalfamoussoftwareetc.bothEnsurethequalityofproducts,butalsogreatlyimprovethemanufacturingproductivity,shortenthecycleofproductupdate.Throughthegraduationdesign,formeintheuniversitylearningstageofmoulddesignaspectsofknowledgeisagoodsummaryandconsolidate,thepeacetimelearningisscatteredknowledgeachievedsystematicapplication.Alsofoundhimselfinsomeaspectofknowledgewithinashort,doowethegoodreviewandunderstandingofmechanicalmanufacturing,processingtechnologyisasystematicandcomprehensiveunderstanding,reachedthepurposeoflearning.Keywords：Helmet，Injectionmold，CAD/CAM/CAPPIII西南科技大学城市学院本科生毕业论文3目录第1章绪论................................................................11.1模具在加工工业中的地位..............................................11.2模具的发展趋势......................................................11.3设计在学习模具制造中的作用..........................................2第2章塑件的工艺性分析.....................................................32.1塑件的原材料分析....................................................32.2塑件成型分析........................................................32.2.1塑件的结构分析.................................................42.2.2塑件尺寸精度的分析.............................................42.2.3表面质量的分析.................................................42.2.4脱模斜度.......................................................5第3章注塑设备的选择.......................................................63.1塑件的体积重量......................................................63.2塑件的注射工艺参数的确定............................................63.3注塑机的初步选择....................................................63.4模架的选择..........................................................73.4.1模架的选则步骤.................................................73.4.2各模板尺寸确定.................................................83.4.3模架尺寸的校核.................................................8第4章模具结构形式.........................................................94.1分型面的选择........................................................94.2型腔数的确定........................................................94.3确定型腔的排列方式.................................................104.4模具型腔与型芯的结构形式设计.......................................104.4.1凹模型腔及型心的设计.........................................104.4.2型芯采用镶拼式结构，有利于加工和安装..........................114.5浇注系统的设计.....................................................124.5.1主流道的设计..................................................12IV西南科技大学城市学院本科生毕业论文44.5.2分流道的设计..................................................134.5.3浇口的设计....................................................144.5.4冷料穴设计....................................................154.5.5冷却系统的设计与计算.........................................154.6模具工作零件的设计与计算..........................................164.6.1型腔型芯计算..................................................164.6.2型腔侧壁厚度和底板厚度的计算..................................164.7脱模机构的设计与计算...............................................174.7.1脱模机构的分类及设计原则......................................174.7.2脱模机构的设计原则............................................184.7.3拉料杆的设计..................................................184.7.4脱模力的计算..................................................194.7.5推件板的厚度..................................................