法兰件的冲压工艺与模具设计(1)

内蒙古工业大学本科毕业设计摘要在工业发展大步向前迈进的中国，冲压工艺也在不断发展中占据着越来越重要的地位。此次设计首先通过计算坯料的尺寸，明确拉深的次数，最终确定了完成工件的加工需要两次拉深。在这之后以目标工件即法兰件为准，在分析了目标工件和拉深工艺的基础上，根据工序设计要求以及对比了常见的三类模具的优缺点，在其中选择了复合模具完成落料拉深工序。在之后的设计中，计算了要如何排样，计算各个重要的力，还设计了要如何把板料冲裁为坯料的方案。在之前的计算和设计的铺垫下，这之后很顺利地计算和设计了模具零件的部分尺寸，如工作部分凸、凹模的刃口尺寸，并根据标准对一些数据进行校核。然后根据参考资料和标准设计了其他模具零件，如定位零件，卸料零件等等。在进行了以上计算和设计的基础上，最后绘制出了模具的装配图和零件图。关键词：落料；拉深；复合模；法兰件内蒙古工业大学本科毕业设计IIABSTRACTAstheChineseindustrycontinuestodevelop,stampingprocessisbecomingmoreandmoreimportant.Inthispaper,threedifferentstampingprocesses(singleprocess,compositeprocessandcontinuousprocess)oftheformingprocessarecomparedandanalyzedforthepunchingprocessanddrawingprocessofthewideflangecylindricalparts.Andselectedthecompositeprocess.Theshape,size,nesting,cuttingplatescheme,thenumberoftimesofdrawing,thenature,numberandorderofstampingprocessarebrieflyanalyzed.Itwasdeterminedthattwodeepdrawingisrequired.Theworkforce,pressurecenter,moldpartoftheworksizeandtolerancecalculation,anddesignofthemold.Butalsothespecificanalysisofthemainpartsofthemold(suchasconvexandconcavedie,unloadingdevice,drawingpunch,plate,punchfixedplate,etc.)designandmanufacturing,convexandconcavemoldgapadjustment.Adetailedlistofthepartsrequiredforthemoldislistedandareasonableassemblydrawingandpartdrawingaregiven.Keywords:blanking;drawing;compositemold;flanges内蒙古工业大学本科毕业设计III目录前言........................................................................................................................第一章零件的分析..............................................................................................21.1零件的技术要求.....................................................................................21.2零件的可拉深性能.................................................................................31.3零件的形状及尺寸公差等级要求.........................................................3第二章工艺分析方案..........................................................................................42.1工序尺寸的计算......................................................................................42.2模具类型的选择......................................................................................5第3章压力机的选择和成型部件的计算..........................................................83.1搭边值的确定.........................................................................................83.2排样方式..................................................................................................83.3步距.........................................................................................................93.4计算材料利用率...................................................................................103.5计算冲压力与压力中心，选择压力机...............................................103.6确定压力中心.......................................................................................113.7校核冲压设备基本参数.......................................................................123.8计算凸凹模刃口尺寸...........................................................................12第四章整体方案设计........................................................................................154.1整体工作原理概述................................................................................154.2各零件作用概述....................................................................................154.3模具的形式............................................................................................164.4判断是否选用压边圈............................................................................164.5拉深模间隙................................................................................................4.6定位与卸料装置....................................................................................17第五章落料模具零部件结构的确定................................................................185.1凸模结构的设计....................................................................................18内蒙古工业大学本科毕业设计IV5.2凹模结构的设计...................................................................................185.3凸凹模的的结构设计...........................................................................195.4.冲模的导向装置............................................................................205.5.冲模的定位装置................................................................................5.6.卸料装置............................................................................................215.7.确定导向方式......................................................................................5.8紧固件...................................................................................................225.9其他零件的设计...................................................................................22第六章成型模具零部件结构的确定................................................................236.1凸模的设计...............................................................................................6.2凸模固定板的设计................................................................................236.3凹模结构的设计....................................................................................246.4定位套的设计......................................