洛阳理工学院毕业设计（论文）落料拉伸复合模具设计摘要学习、研究和发展冷冲压技术，对发展我国国民经济和加速现代化工业建设具有重要意义。本文主要是对压紧弹簧座工艺分析及模具设计。首先，对传压紧弹簧座进行了工艺分析，压紧弹簧座外形是圆柱形，确定了毛坯尺寸、拉深次数、模具的结构形式及排样方式；然后选择了合适的压力机，把凹模、凸模的尺寸设计出来、选择了合适的模架、卸料装置、推件装置、导向零件、模柄、凸模和凹模的固定板及垫板，用CAD软件绘制了本模具的工程图。关键词：拉伸，圆柱形，工艺分析，冷冲压I洛阳理工学院毕业设计（论文）BLANKING-DRAWING-COMPOSITEMOLDDESIGNABSTRACTLearning,researchanddevelopthecoldstampingtechnologyhasagreatsignificancetothedevelopmentofChina’snationaleconomyandtheprocessofacceleratingthemodernizationofindustrialconstruction.Inthispaper,wemainlydiscusstheanalysisoftheprocessofthecompressionspringseatandthedesignofthedie.Firstofall,weanalyzetheprocessofthecompressionspringseat.Theshapeofthecompressionspringseatiscylindrical,andtheblanksize,thenumberofdrawing,thestructureformandthearrangementmodeofthediearedetermined.Secondly,wechoosetherightmachinetodesignthesizeoftheconcavedieandpunchout,choosethesuitablemold,dischargingdevice,thepushingdevice,guidepart,adieshank,aconvexdieandtheconcavediefixingplateandplate.Consequently,weusetheCADsoftwaredrawndrawingsofthemold.KEYWORDS:thetensile,cylindrical,processanalysis，coldstampingII洛阳理工学院毕业设计（论文）目录前言............................................5第1章模具成型.............................61.1冷冲模成型特点............................................61.1.1冲裁模..............................................................61.1.2弯曲模..............................................................61.1.3拉伸模和多位级进模..................61.2冷冲模具的发展趋势.............................61.3复合模.........................................................................71.3.1复合模的种类........................................71.3.2选择复合模的原则.........................81.3.3复合模的设计要点......................10第2章冲压加工的经济性选择.....122.1经济性......................................................................122.2冲压件的制造成本.................................122.3降低成本的措施........................................12第3章冲压件工艺性分析............143.1制件的工艺分析........................................143.2毛坯尺寸的确定........................................153.3拉伸次数..............................................................153.4冲裁力......................................................................163.5卸料力、推件力和顶件力...........163.6排样.............................................................................173.7拉伸.............................................................................173.7.1拉伸力..........................................................183.8模具压力中心和闭合高度的确定.......................................................................................................183.9压力机的选择...............................................193.10模具主要零部件的设计..............19III洛阳理工学院毕业设计（论文）3.10.1落料凹模的结构设计..............203.11模具标准件选择....................................223.11.1模架的选择............................................223.11.2挡料销..........................................................24...
