钥匙冲压模具设计

摘要本设计为一钥匙的冷冲压模具设计，根据设计零件的尺寸、材料、批量生产等要求，首先分析零件的工艺性，确定冲裁工艺方案及模具结构方案，然后通过工艺设计计算，确定排样和裁板，计算冲压力和压力中心，初选压力机，计算凸、凹模刃口尺寸和公差，最后设计选用零、部件，对压力机进行校核，绘制模具总装草图，以及对模具主要零件的加工工艺规程进行编制。其中在结构设计中，主要对凸模、凹模、凸凹模、定位零件、卸料与出件装置、模架、冲压设备、紧固件等进行了设计，对于部分零部件选用的是标准件，就没深入设计，并且在结构设计的同时，对部分零部件进行了加工工艺分析，最终才完成这篇毕业设计。关键词：模具冲裁件凸模凹模凸凹模AbstractThedesignforaplateofcoldstampingdiedesign,accordingtothesizeofthedesigncomponents,materials,massproduction,etc.,thefirstpartoftheprocessofanalysistodeterminetheblankingprocessplanninganddiestructureoftheprogram,andthenthroughtheprocessdesigncalculations,determinethenestingandcuttingboard,calculatethepressureandpressurewashedcenters,primarypresses,computingconvexandconcaveDieCuttingEdgedimensionsandtolerances,thefinaldesignselectionofpartsandcomponents,topressforchecking,drawingdieassemblydrawings,aswellasMoldprocessingtechnologyofthemainpartstothepreparationprocedures.Inwhichthestructuraldesign,primarilytothepunchanddie,punchanddie,positioningparts,unloadingandoutofpiecesofequipment,mold,pressingequipment,fasteners,etc.hasbeendesigned,fortheselectionofsomecomponentsarestandardparts,thereisnoin-depthdesign,andstructuraldesign,whilesomepartsfortheprocessingprocessanalysisandultimatelytocompletethisgraduationproject.KEYWORD:moldstampingpartspunchdiepunchanddie目录第一章绪言.............................................................1第一节材料的工艺分析...............................................................................................1第二节材料选择.........................................................................................................2第三节工件结构形状.................................................................................................2第四节尺寸精度.........................................................................................................2第二章冲裁工艺方案的确定...............................................................................................................4第三章模具结构形式的确定...............................................................................................................5第四章模具总体设计..............................................................................................................................6第一节模具类型的选择.............................................................................................6第二节操作与定位方式.............................................................................................6第三节卸料、出件方式.............................................................................................6第四节确定送料方式.................................................................................................7第五节确定导向方式.................................................................................................7第五章模具工艺参数确定....................................................................................................................8第一节排样设计与计算..............................................8第二节搭边值的确定.................................................................................................8第三节进距与条料宽度计算.....................................................................................9第四节材料利用率的计算.......................................................................................11第六章计算冲压力与压力机的初选..............................................................................................13第一节冲裁力Fp的计算.........................................................................................13第二节卸料力Fq1的计算.......................................................................................13第三节顶件力Fq2的计算.......................................................................................14第四节总的冲压力F的计算...................................................................................14第五节压力机的初选...............................................................................................14第七章模具压力中心的确定............................................................................................................16第八章冲裁模间隙的确定.................................................................................................................17第一节冲裁间隙Z....................................................................................................17第二节冲裁间隙分析...............................................................................................17第九章凹、凸模刃口尺寸的计算...................................................................................................19第一节刃口尺寸计算的基本原则...........................................................................19第二节刃口尺寸的计算...........................................................................................19第十章主要零部件的设计.................................................................................................................23第一节工作零件的设计与计算...............................................................................23第二节橡胶的选用...................................................................................................29第三节模架及其零件的设计...................................................................................30