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变压器油枕前盖冲压成形级进模设计说明书[带图纸].doc

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变压器油枕前盖冲压成形级进模设计说明书[带图纸].doc

变压器油枕前盖冲压成形级进模设计1目录前言...........................................................................................................................11设计初始资料.......................................................................................................32分析冲压工件的工艺性.......................................................................................42.1冲压件的工艺性分析........................................................................................42.2冲压件的尺寸精度及标注................................................................................42.3工艺方案的确定及模具形式............................................................................43拟定冲压件工艺方案...........................................................................................53.1排样....................................................................................................................53.2工序的确定........................................................................................................53.3搭边类型的确定................................................................................................53.4卸料板的选择....................................................................................................64工艺计算...............................................................................................................74.1毛坯料尺寸计算................................................................................................74.1.1确定是否加修边余量.....................................................................................74.1.2毛坯直径.........................................................................................................74.1.3确定是否需要压边圈.....................................................................................84.1.4确定拉伸次数.................................................................................................84.2搭边....................................................................................................................84.2.1搭边的作用.....................................................................................................84.2.2搭边的数值.....................................................................................................9辽宁工程技术大学毕业设计(论文)24.3送料步距..........................................................................................................104.4条料宽度..........................................................................................................104.5材料利用率......................................................................................................114.6计算冲压力......................................................................................................124.6.1对毛坯冲孔、落料的冲裁力计算...............................................................124.6.2对于毛坯用压边圈拉深的计算...................................................................134.6.3辅助工艺力计算...........................................................................................144.7压力中心的确定..............................................................................................164.7.1压力中心.......................................................................................................164.7.2压力中心的计算...........................................................................................165凸、凹模刃口尺寸计算.....................................................................................185.1刃口尺寸确定的原则......................................................................................185.2冲裁间隙的选择..............................................................................................185.3尺寸计算..........................................................................................................195.3.1对于φ286毛坯进行落料时的刃口尺寸计算............................................195.3.2对于φ11㎜和φ4㎜孔冲裁时的尺寸计算..............................................205.3.3对拉深模的尺寸计算...................................................................................206模具强度的校核.................................................................................................226.1模具失效形式..................................................................................................226.2对冲裁部分的模具零件进行校核计算..........................................................226.2.1压应力校核...................................................................................................226.2.2弯曲应力的校核...........................................................................................23变压器油枕前盖冲压成形级进模设计37模具主要零部件设计.........................................................................................247.1模架的选用......................................................................................................247.2导向装置的确定..............................................................................................247.3模柄的选择......................................................................................................247.4定位装置的设计..............................................................................................247.5卸料形式的确定..............................................................................................257.6导料装置的确定..............................................................................................258模具材料的选用.................................................................................................268.1选择材料的原则..............................................................................................268.2工作零件材料的选择方法及步骤..................................................................269压力机的选用.....................................................................................................2810模具工作过程...................................................................................................2911经济性分析.......................................................................................................3012总结...................................................................................................................32致谢.........................................................................................................................33参考文献.................................................................................................................34附录A.....................................................................................................................35附录B.....................................................................................................................39摘要辽宁工程技术大学毕业设计(论文)4一副级进模内可以包含冲裁,弯曲,成型,拉深等多道工序,一台冲床可完成从板料到成品的各种冲压过程。它免去了用单工序模的周转和每次冲压的定位过程,提高了劳动生产率和设备利用率。本文进行了变压器油枕前盖冲压成形级进模的设计,通过对待冲压成形的工件变压器油枕前盖的分析,确立了冲压的工艺过程以及冲压级进模的结构。而后对级进模的各个主要零部件进行了尺寸的计算和强度校核,通过压力机的确定,设计出了整个冲压级进模。所设计的级进模,使目前生产变压器油枕前盖的效率大大提高,并且有效降低了生产成本,获得收益的增加。关键词级进模变压器油枕前盖模具设计变压器油枕前盖冲压成形级进模设计5ABSTRACTTherearemanyworkingprocedureinaprogressivedie,andonlyonepiercinglathcanfinishtheprocessfrommaterialtofinishedproduct.Itexemptedfromlocatingprocesswhichappearedintheplaindie,andincreasedtheworkingproductivityandusingrateofequipment.Thisarticlehasdesignedtheprogressivediewhichisinuseofpunchingthefrontcoveroftransformer.Byanalyzingthefrontcoveroftransformer,itdesignedthetechnicalprocessandthestructureofprogressivedie.Thenitcalculatedthesizeofimportantcomponents,checkedthem,anddesignedthewholeprogressivediebythewayofchoosingpressuremotorfinally.theprogressivediedesignedimprovedtheproductivityoftheoiltankfrontcoveroftransformer,decreasedthecostofproducingandincreasedtheincome.Keywordsprogressivedietheoiltankfrontcoveroftransformerdiedesign

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