金属垫片倒装复合模冷冲压模具设计

I摘要模具属于精密机械产品，它主要由机械零件和机构组成，如成形工作零件、导向零件、支承零件、定位零件及送料机构、抽芯机构、推出机构等。模具与相应的成形设备（如冲床、塑料注射机、压铸机等）配套使用时，可直接改变金属或非金属材料的形状、尺寸、相对位置和性能，使之成形为合格的制件。本设计以冲孔落料复合模设计为主线，依据模具的基本组成部分，采取基础和设计技巧相结合，理论与实践相结合，图例与剖析相结合，模具设计与加工工艺相结合的方式，对金属垫片设计中的关键之处以及可能出现的问题和处理方式进行详细地剖析。同时，从模具的加工工艺的角度出发，分析并提供便于加工的模具结构形式，使模具设计和加工更加紧密的结合在一起。本次设计绘图采用CAD进行，CAD为计算机辅助制图工具，是一款专业机械平面制图软件，具有很强的图象处理功能。关键词：模具设计排样冷冲模垫片复合模IAbstractMouldbelongtoprecisionmachineryproducts,itismainlycomposedofmechanicalpartsandinstitutions,suchasformingparts,steeringparts,bearingparts,positioningpartandconveyingmechanism,core-pullingmechanism,launchmechanism,etc.Moldandformingequipment,suchaspunching,plasticinjectionmachine,die-castingmachine,etc.)supportingtheuse,canbedirectlychangingtheshapeofthemetalornonmetalmaterial,size,positionandperformance,formingforthequalifiedparts.Thisdesignbypunchingblankingcompositemolddesignasthemainline,accordingtothebasicpartofmould,adoptcombinationofbaseanddesigntechniques,combinedtheorywithpractice,theillustrationandanalysis,thecombinationofacombinationofmolddesignandprocessingtechnology,themetalgasketdesignaswellasthepossibleproblemsandthekeypartsoftheprocessingmodetocarryonthedetailedanalysis.Atthesametime,fromtheperspectiveofmoldprocessingtechnology,analyzeandprovidetofacilitateprocessingofthemouldstructure,moulddesignandprocessingmorecloselytogether.ThedesigndrawingwithCAD,CADiscomputeraideddrawingtools,isaprofessionalmechanicalplanedrawingsoftware,hasastrongimageprocessingfunction.KEYWORD:ThemolddesignRowoftypeColdramminggasketCompositemould目录摘要.............................................................................................................................................IAbstract........................................................................................................................................I第一章绪论..............................................................................................................................11.1模具行业发展前景分析..............................................................................................11.1.1中国模具市场前景广阔...................................................................................11.1.2模具产品市场竞争力不断提升.......................................................................11.1.3模具行业发展速度持续增长...........................................................................11.1.4模具行业机遇和挑战并存...............................................................................21.2模具行业发展趋势分析..............................................................................................21.2.1模具市场全球化，模具生产周期进一步缩短...............................................21.2.2模具CAD/CAM向集成化、智能化和网络化发展......................................31.2.3模具技术向高速加工、硬铣削和复合加工方向发展...................................31.2.4模具产品将向大型、精密、标准化方向发展...............................................31.2.5模具种类向热流道、气辅模具及适应高压注塑成型工艺方向发展...........41.2.6快速经济模具前景十分广阔...........................................................................41.2.7优质模具材料及先进表面处理技术受到重视...............................................41.2.8汽车、IT电子产业发展影响模具市场景气..................................................41.2.9模具产业结构还需进一步调整.......................................................................51.2.10管理水平制约模具企业发展.........................................................................51.2.11政府大力扶持模具城建设.............................................................................51.2.12模具协会发挥政企桥梁作用.........................................................................6第二章工艺方案分析..............................................................................................................92.1零件设计任务..............................................................................................................92.2分析比较和确定工艺方案.........................................................................................92.2.1加工方案的分析...............................................................................................92.2.2模具结构型式的选择...................................................................................102.3冲压模具材料选用及热处理要求...........................................................................11第三章计算冲裁压力、压力中心和选用压力机................................................................153.1排样方式、搭边值的确定及材料利用率计算.......................................................153.1.1排样方式的确定............................................................................................153.1.2搭边值的确定.................................................................................................153.1.3材料利用率的计算.........................................................................................173.2计算冲裁力、卸料力...............................................................................................193.3确定模具压力中心...................................................................................................20第四章模具各主要零部件的设计........................................................................................214.1凸模外形尺寸确定.....................................................