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1、摘要随着中国工业不断地发展，模具行业也显得越来越重要。本文针对拖拉机机架框的冲压工艺性，分析比较了成型过程不同冲压工艺，确定用三幅单模完成落料、冲孔、弯曲的工序过程。介绍了拖拉机机架框冷冲压成形过程，且重点分析了坯料形状、尺寸，落料模、冲孔模、弯曲模的工作原理、工艺性、圆角半径、精度、工序、力的计算、间隙及凸凹模深度、压力机的选择，并给出了合理的模具总体设计。还具体分析了模具的主要零部件（如凸凹模、卸料装置、拉深凸模、垫板、凸模固定板等）的设计与制造，冲压设备的选用，凸凹模间隙调整和编制一个重要零件的加工工艺过程。列出了模具所需零件的详细清单，并给出了合理的装配
2、图。通过充分利用现代模具制造技术对传统机械零件进行结构改进、优化设计、优化工艺方法能大幅度提高生产效率，这种方法对类似产品具有一定的借鉴作用。关键词：拖拉机机架框；冷冲压；模具装配图；三维建模ABSTRACTWithChina'sindustriescontinuetodevelopanddieindustryisalsobecomingincreasinglyimportant.Thisarticleinviewofthetractorframeboxstampingtechnology,analysesandcomparesthedifferentformi
3、ngprocessofstampingprocess,determinethreephotoswithsinglemodecompleteblanking,punching,bendingprocessprocess.Introducedthetractorframeboxcoldstampingprocess,andanalysestheblankshape,size,blankingmold,punchingdiebendingdie,theworkingprinciple,technology,filletradius,theprecisionandthe
4、workingprocedure,forcecalculation,clearanceanddieandpunchdepth,thechoiceofthepress,andgivestherationalmouldoveralldesign.Fortheprocess,thecenterofpressure,thediesizeandthetoleranceofthecalculation,designmold.Alsoanalyzesthemoldofthemaincomponents(suchaspunchanddieanddumpdevices,drawi
5、ngpunch,slates,Punchplate,etc.)designandmanufacturing,stampingequipmentselection,punch-gapadjustmentandestablishmentofavitalpartsmachiningprocess.Dierequirementssetoutadetailedlistofparts,andgivesareasonableassembly.Byfullyutilizingmodernmanufacturingtechnologytomoldtraditionalmechan
6、icalpartsforstructuralimprovements,designoptimization,Processoptimizationmethodscangreatlyenhanceproductionefficiency,themethodofsimilarproductshavesomereference.Keywords:Tractorframedialog;Coldstamping;Moldassemblydrawing;3dmodeling目录摘要...............................................
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