连接板冲压工艺与模具设计

本科毕业设计题目：连接板冲压工艺与模具设计学院:机械自动化专业:模具设计与制造学号:学生姓名:指导教师:日期:武汉科技大学本科毕业设计I摘摘要要本次主要设计了一套冲孔、落料的模具。经过查阅资料，首先要对零件进行工艺分析，经过工艺分析和对比，采用冲孔落料工序，通过冲裁力、顶件力、卸料力等计算，确定压力机的型号。再分析对冲压件加工的模具适用类型选择所需设计的模具。得出将设计模具类型后将模具的各工作零部件设计过程表达出来。在设计说明书的第一部分，主要叙述了冲压模具的发展状况，说明了冲压模具的重要性与本次设计的意义，接着是对冲压件的工艺分析，完成了工艺方案的确定。第二部分，对零件排样图的设计，完成了材料利用率的计算。再进行冲裁工艺力的计算和冲裁模工作部分的设计计算，对选择冲压设备提供依据。最后对主要零部件的设计和标准件的选择，为本次设计模具零件图的绘制和模具的成形提供依据，以及为装配图各尺寸提供依据。关键字：冲孔；落料；复合模具；冲裁模具；冲压设备武汉科技大学本科毕业设计IIABSTRACTThisdesigncarriesonblanking,thepiercingprogressivediesdesign.Thearticlehasbrieflyoutlinedthepressdieatpresentdevelopmentconditionandthetendency.Ithascarriesonthedetailedcraftanalysisandthecraftplandeterminationtotheproduct.Accordingtogeneralstepwhichthepressdiedesigns,calculatedandhasdesignedonthissetofmoldmainsparepart,forexample:Thepunch,thematrix,thepunchplate,thebackingstrip,thematrixplate,stripperplate,stoppin,pilotpinandsoon.Thediesetsusesthestandardmouldbases,hasselectedtheappropriatepressequipment.Inthedesignhascarriesontheessentialexaminationcomputationtotheworkingelementsandthepressspecification.Inaddition,thisdieemploysthefingerstoppinandthehookshapestoppin.Themoldpiercingandblankingpuncharefixedwiththedifferentplatesseparatelyinordertocoordinatethegapconveniently;Thepiercingmatrixandblankingmatrixarefixedbytheoverallplate.Keywords:Piercing；Bending；Pressmold；Punchmold；Pressmold武汉科技大学本科毕业设计III目目录录11绪绪论论......................................................................................................................................1111..11课课题题的的研研究究目目的的和和意意义义..............................................................................................1111..22文文献献综综述述......................................................................................................................2211..22..11我国模具工业的现状和模具技术的发展趋势........................21.2.2我国模具钢的发展情况...........................................31.2.3模具CAD/CAE/CAM技术...........................................41.2.4先进模具制造技术...............................................51.3设计内容...........................................................61.4本章小节...........................................................72模具冲压工艺分析.......................................................82.1冲裁件的形状和尺寸应满足以下要求...................................82.2冲裁件的精度与端面粗糙度...........................................82.3材料的冲压性能分析.................................................82.4材料的冲压性能分析.................................................93冲裁方案的确定与排样..................................................103.1冲裁方案的分析和确定..............................................103.2模具的结构形式....................................................103.3工序及排样图设计..................................................103.3.1排样设计......................................................103.3.2材料的利用率..................................................113.4本章小结..........................................................124冲裁模（冲孔落料复合模）分析计算.......................................134.1冲裁力的计算......................................................134.2卸料力，推件力和顶件力的计算......................................134.3冲裁工艺力的计算和冲压设备的选择..................................144.4模具压力中心的确定................................................144.5冲裁模刃口尺寸及公差的计算........................................154.6冲裁刃口尺寸的计算................................................154.6.1落料刃口尺寸及公差的计算......................................154.6.2冲孔刃口尺寸及公差的计算......................................164.6.3孔心距........................................................174.7本章小结..........................................................185冲裁模的结构设计......................................................195.1模具总体结构......................................................195.2工作零件的设计....................................................195.2.1凹模的结构设计................................................195.2.2冲孔凸模的结构设计............................................205.2.3模具主要零件的强度校核.........................................205.3定位零件的设计....................................................215.3.1挡料销........................................................215.3.2导正销........................................................21武汉科技大学本科毕业设计IV5.4卸料装置设计......................................................225.4.1弹性卸料板的设计..............................................225.4.2卸料螺钉的选用................................................235.5模架的选用........................................................245.5.1模座..........................................................245.5.2导向零件.....................................................245.6连接与固定零件...................................................265.6.1模柄........................................................265.6.2凸模固定板..................................................265.6.3螺钉与销钉..................................................275.6.4垫板........................................................275.7本章小结........................................................276模具零件的固定方法..................................................286.1凸模的固定...........................