弹簧抱挎冲压工艺及多工位级进模设计

重庆理工大学弹簧抱挎冲压工艺及多工位级进模设计目录摘要....................................................................................................................................IAbstract.................................................................................................................................II1绪论.................................................................................................................................11.1级进模简介...........................................................................................................11.2国内级进模与国际先进水平的主要差距主要表现在以下方面：...................12多工位级进模概述.........................................................................................................32.1多工位级进模的实质和特点...............................................................................32.2多工位级进模的分类...........................................................................................32.3多工位级进模应用的必要条件...........................................................................42.4多工位级进模的应用...........................................................................................62.3多工位级进模的发展...........................................................................................63弹簧抱挎模具设计与计算.............................................................................................93.1冲压件的工艺分析.............................................................................................103.2工艺方案确定.....................................................................................................103.3排样图设计.........................................................................................................123.4冲压力的计算.....................................................................................................143.5冲压刃口尺寸计算.............................................................................................174级进模零部件设计.......................................................................................................194.1冲孔凸模与凹模结构尺寸设计.........................................................................194.2落料、切断凸模和凹模结构尺寸设计.............................................................224.3弯曲凸模和凹模结构尺寸设计.........................................................................254.4导料装置.............................................................................................................304.5侧压装置.............................................................................................................314.6定距机构设计.....................................................................................................334.7卸料装置.............................................................................................................344.8自动检测保护装置.............................................................................................354.9非标准件.............................................................................................................364.10标准件的选取...................................................................................................42重庆理工大学弹簧抱挎冲压工艺及多工位级进模设计5模具总装图...................................................................................................................446弹簧抱挎冲压工艺与模具设计的综合分析...............................................................49结束语.................................................................................................................................50参考文献.............................................................................................................................51重庆理工大学弹簧抱挎冲压工艺及多工位级进模设计I摘要级进模在过去因技术水平的限制，工位数相对较少，常为3~5个工位，10个工位以上就算多了，所以多工位这个词过去很少听到。近年来模具设计与制造技术有了进步，工位数已不再是限制模具设计与制造的关键。本文分析了弹簧抱挎多工位级进模设计的工艺性，详细介绍了其成形的排样方案和多工位级进模零部件的设计。确定了合理的成形步骤和多工位级进模的结构，该模具凹模采用镶块式从一定程度上降低了成本，且易损部位更换方便。模具结构灵活可靠、卸料方便，能保证产品质量，对此类零件的级进模设计有参考价值。关键词：级进模成形结构重庆理工大学弹簧抱挎冲压工艺及多工位级进模设计IIAbstractInthepast,Progressivedierelativelysmallnumberofbitswork,generally3to5stations,10stationsoverevenmorebecauseoftechnicallimitations,sothemulti-bitwordseldomheardinthepast.Molddesignandmanufacturingtechnologymadeprogressinrecentyears,themedianisnolongerthelimitworkersdiedesignandmanufactureofthekey.Thispaperanalyzesthespringdestroyedholdmulti-positionprogressivediedesignprocessofdetailingthelayoutofitsprogramsandformingmulti-positiondesignofprogressivediecomponents.Reasonablestepstodeterminetheshapeandmulti-positionprogressivediestructure,themoldinsertblockdiebyacertainextent,reducethecost,andeasyreplacementofwearingparts.Moldstructureflexibleandreliable,easytodischarge,toensureproductquality,ofsuchpartoftheprogressivediedesignavaluablereference.Keywords：ProgressiveDieFormingStructure重庆理工大学弹簧抱挎冲压工艺及多工位级进模设计11绪论1.1级进模简介多工位级进模是在普通级进模的基础上发展起来的一种高精度、高效率、长寿命的模具，是技术密集型模具的重要代表，是冲模发展方向之一。这种模具除进行冲孔落料工作外，还可根据零件结构的特点和成形性质，完成压筋、冲窝、弯曲、拉深等成形工序，甚至还可以在模具中完成装配工序。冲压时，将带料或条料由模具入口端送进后，在严格控制步距精度的条件下，按照成形工艺安排的顺序，通过各工位的连续冲压，在最后工位经冲裁或切断后，便可冲制出符合产品要求的冲压件。为保证多工位级进模的正常工作，模具必须具有高精度的导向和准确的定距系统，配备有自动送料、自动出件、安全检测等装置。所以多工位级进模与普通冲模相比要复杂，具有如下特点：（1）在一副模具中，可以完成包括冲裁，弯曲，拉深