机械5

空调垫片正装下顶出落料模设计 摘要 冲压模具作为制造产品（或半产品）的一种工具，其作用是完成某种工艺。模具设计必须满足工艺要求，最终满足产品的形状、尺寸和精度的要求。因此冲压设计师必须掌握冲压工艺，包括冲压工艺的分类、各种工艺计算、工艺制订等基础知识，而后才可以选择模具的类型，进行模具设计，使模具的类型表面质量、尺寸精度结构及尺寸等满足工艺及产品的要求。 冷冲压工艺大致分两类：分离工序和成型工序。分离工序的目的是在冲压过程中将冲压件与板料按一定的轮廓线进行分离：分离工序又可分为落料、冲孔和剪切等。成型工序的目的是使冲压毛胚在不破坏其完整性的条件下产生塑性变形，并转化成产品所需要的形状：成形工序又分为弯曲、拉深、翻边、翻孔、胀形、扩孔等。 冷冲压模具是冲压生产的主要工艺设备。冲压件的表面质量、尺寸精度、生产率以及经济效益等，与模具结构及设计是否合理关系极大。 关键词:落料、塑性变形、工艺计算、工艺制订、表面质量、尺寸精度 Just pack a si
nglework preface to fall to a
nticipate the mold Abstract Hurtle a ki
nd of tool of press the moldi
ng tool co
nduct a
nd actio
ns ma
nufacturi
ng product(or the half product),its fu
nctio
n is to complete a certai
n craft.Therefore hurtli
ng to press desig
ner must co
ntrol to hurtle to press the craft,the classificatio
n,various craft calculatio
n,craft that i
ncludes to hurtle to press the craft establishes etc.the fou
ndatio
n k
nowledge,just ca
n choose the type of the moldi
ng tool a
nd the
n,carryo
n the moldi
ng tool desig
n,make the type,structure a
nd size etc.of the moldi
ng tool satisfythe request of the craft a
nd product. Cold hurtle to press the craft to divide mostlytwo type: Separate thework preface a
nd model thework preface.Purpose that separates thework preface is at hurtle to ra
n over the dista
nce lieute
na
nt ge
neral to hurtle to press the piece a
nd pla
nks to a
nticipate to press certai
n outli
ne li
ne to carryo
n the separatio
n: Separati
ng thework preface ca
n is divided i
n to fall to a
nticipate agai
n,blu
nt bore a
nd shear to slice etc..The purpose that models thework preface is to make hurtle to press the hair,the creatio
n tra
nsforms u
nder the co
nditio
n of
not break its i
ntegrity,a
nd co
nvert the shape that product
need: Take shape thework preface a
nd is divided i
nto the flectio
n a
nd pull deep,tur
n over the side,tur
n over the bore,bulge form a
nd expa
nd the bore,etc..Cold hurtle to press the moldi
ng tool is mai
n craft equipme
nts that hurtles to press to produce.Hurtle the surface qua
ntity,size accuracy,rate of productio
n a
nd the eco
nomyperforma
nce etc.of press the piece,with the moldi
ng tool structure a
nd desig
nswhether the reaso
nable relatio
n is biggest. Keyword: Fall to a
nticipate,plastic deformatio
n,the craft calculatio
n,craft establish,surface qua
ntity,size accuracy 目录 摘要1 Abstract 2 绪论5 第1章、设计内容及要求8 1.1制件图、材料及要求8 第2章、冲裁件的工艺分析9 第3章、主要设计计算11 3.2毛胚的确定11 3.3冲裁力的计算11 3.3.1冲裁力11 3.3.2压力中心的确定及相关尺寸的计算12 3.4工作零件刃口尺寸计算13 第4章、模具总体设计及主要零部件设计15 4.1模具结构的选择15 4.2卸料弹簧的设计与计算15 4.3冲压设备的选择16 4.4模具的总体设计16 4.4.1模具类型的选择16 4.4.2定位方式的选择16 4.4.3导向方式的选择16 4.5主要零部件的设计16 4.5.１工作零件的结构设计16 4.5.2落料凸模的设计16 L=H1+h2+t+h=16+14+0.3+33=63.3mm 17 4.5.3落料凹模的设计17 4.5.4定位零件的设计17 4.6卸料部件的设计17 4.6.1卸料板的设计18 4.6.2卸料螺钉的选用18 4.6.3顶件装置18 4.7模具总装图19 4.8模具工作零件的加工工艺19 第5章模具的装配和调整19 5.1主要组件的装配：20 5.1.1模柄的装配20 5.1.2凸模的装配20 5.1.3弹压卸料板的装配20 5.2总装配20 5.3冲裁模试冲的缺陷和调整21 第6章结论22 致谢23 参考文献25 附录26