变压器储油柜端盖模具设计

1变压器储油柜端盖模具设计摘要分析了变压器储油柜端盖的结构和成形工艺，计算了毛坯尺寸和冲压力。为了提高端盖的生产效率，设计了集三工序为一体的落料拉深冲孔复合模的结构，经过工艺分析、结构设计，论证了其可能性，保证了制品的质量。在模具设计中,为了提高速度和效率,充分利用已经掌握的知识和资源。利用Pro/E曲面设计功能快速求出曲面的面积。利用冲模设计手册软件版快速设计冲压模具,并对模具的强度进行检验。实践证明,确实提高了设计的速度和效率。本模具设计中,由于卸料力较大,采用了组合弹簧力较大的优点解决了这一问题。在模具结构中,用顶板做凸模的定位元件,由于配合定位的距离小,容易造成凸模的折断,因而设计了凹模导向凸模,增强了凸模的强度。关键词：落料；拉深；冲孔；复合模；模具结构2AbstractThestructureandprocessingpropertyofbellowsoilconservatorendcoverfortransformerswereanalyzed.Theblankdimensionsandpressingforcewerecalculated.Thecompounddieofcut-tandem-punchcombinedwiththreeproceduresisdesignedinordertoimprovetheproductionofendcover.Thearticleprovesitsavailabilitythroughtechnologicalanalysisandstructuraldesigntoguaranteeproducts’quality.Inmolddesign,inordertoimprovepaceandefficiency,fullyutilizeknowledgeandresourcethathasalreadybeengrasped.UtilizePro/Ecurvedsurfacedesignfunctionask,produceareaofcurvedsurfacefast,utilizethedesignmanualsoftwareeditionofthetrimmingdietodesignandpressthemouldfast,andtheintensitytothemouldisexamined.Practicehasproved,havereallyimprovedpaceandefficiencydesigned.Inthismolddesign,becauseofunloadmaterialtobestrengthrelativelyheavy,adopt,makeupspringloudadvantagesolvethisproblem.Inthemouldstructure,makethelocalizationcomponentoftheprotrudingmouldwiththeroof,thedistancemakingareservationislittlebecauseofcooperating,apttocauseprotrudingruptureofmould,designconcavemouldpour,toprotrudingmould,strengthenprotrudingintensityofmould.Keywords:cut；tandem；punch；compounddie；diestructure3目录摘要.......................................................................1Abstract.....................................................................21绪论....................................................................52设计题目.................................................................113工艺分析.................................................................133.1技术分析...........................................................133.1.1冲裁的结构工艺性.............................................133.1.2拉深的结构工艺性.............................................143.2经济分析...........................................................163.2.1冲压件成本分析...............................................173.2.2降低制造成本的措施...........................................183.3变压器储油柜端盖的工艺分析.........................................203.3.1材料.........................................................203.3.2零件结构.....................................................203.3.3尺寸精度.....................................................204制定工艺方案.............................................................214.1工艺方案的分析.....................................................214.1.1修边余量.....................................................214.1.2计算毛坯尺寸.................................................214.1.3确定是否用压边圈.............................................224.1.4确定拉深次数（采用查图法）...................................224.2工艺方案的确定.....................................................225工艺计算.................................................................255.1材料排样及材料利用率的计算.........................................255.1.1材料排样的选用原则...........................................255.1.2确定板料规格和裁料方式....................................2645.2冲压力的计算及设备的选择...........................................275.2.1落料.........................................................275.2.2拉深.........................................................285.2.3起伏成形.....................................................305.2.4冲孔.........................................................315.2.5冲压设备的选择...............................................315.3模具压力中心的计算.................................................335.4模具刃口尺寸和公差确定.............................................345.4.1坯料冲裁间隙的确定...........................................345.4.2落料刃口尺寸的计算.........................................365.4.3冲孔刃口尺寸的计算...........................................365.4.4拉深工序工作部分的尺寸及间隙.................................375.5模具强度校核.......................................................385.5.1冲孔凸模的强度校核...........................................385.5.2螺钉的强度校核...............................................396模具结构合理性分析.......................................................416.1模具结构图.........................................................416.2模具的工作过程.....................................................417模具主要零件结构设计.....................................................437.1弹性元件的设计.....................................................437.1.1弹簧的设计计算.............................................437.1.2卸料橡胶的设计计算........................................447.2模架的选择.........................................................447.3工作零件的设计.....................................................447.3.1凹模刃口的结构型式确定.......................................447.3.2凸模刃口的结构型式确定.......................................45结论......................................................................46致谢......................................................................47参考文献....................................................................4851