机械5

u型卡片零件的冲压工艺和模具设计说明书 摘要：在人民生活日渐提高的前提之下，模具行业也水涨船高，人们的生产生活之中对于产品的要求越来越高，这使得现在的冲压模具行业面临着巨大的机遇和挑战。模具分为注塑模具，冲压模具以及压铸模具等等大类，其中冲压模具的占比非常之大，我们在日常生活之中看到的大多数的金属板和金属件之类的零件都能够使用冲压模具技术生产制造，所以现在的大环境之下无疑对我们从事冲压的技术人员来说是一个绝佳的机会。 分析本次设计的工件为U形卡片，该工件为U形弯曲类型，没有其他的特殊结构比如拉深等，需要使用到的工序有落料和冲孔和弯曲。然后需要对工件结构性进行分析，确定出适合的模架类型，比如复合模或级进模等，最终设计采用了一套落料冲孔复合模具和一套单工作顺序弯曲模具。继而实行构造图设想..平面陈设图是冲压模具设想的基石，决定了该料带是前后送料还是左右送料最终决定模架的形式，确定了采用后侧导柱模架的设计方案。然后对工件的冲压力进行了详细的计算，并且选择出了合适的压力机，最后通过对刃口尺寸进行计算，设计出了模具的凸模，凹模，凸凹模，以及卸料板固定板等等，最终对模具整体进行整合，利用cad二维软件对模具整体装配图以及零件图进行了绘制，整理出说明书，并且进行了最后总结。 关键词：冲压模具；U形卡片；复合模;排样图；模架；凸模 Stampi
ngProcessofU-cardPartsa
ndMoldDesig
n Abstract：With the improveme
nt of people's life,the mold i
ndustryis also risi
ng.People's productio
n a
nd life have higher a
nd higher requireme
nts for products,which makes the curre
nt stampi
ng mold i
ndustryface great opportu
nities a
nd challe
nges.Mold is divided i
nto i
njectio
n mold,stampi
ng mold a
nd die-casti
ng mold a
nd so o
n.Amo
ng them,the proportio
n of stampi
ng mold isverylarge.Most of the metal plates a
nd metal partswe see i
n our dailylife ca
n be ma
nufactured bystampi
ng mold tech
nology.Therefore,i
n the curre
nt e
nviro
nme
nt,it is u
ndoubtedlya
n excelle
nt opportu
nityfor our stampi
ng tech
nicia
ns. A
nalysis of the desig
n of theworkpiece for the U-shaped card,theworkpiece for U-shaped be
ndi
ng type,
no other special structure,such as deep drawi
ng,etc.,
need to use the process of bla
nki
ng a
nd pu
nchi
ng a
nd be
ndi
ng.The
nwe
need to a
nalyze the structure of theworkpiece to determi
ne the suitable type of mold base,such as compou
nd die or progressive die.Fi
nally,a set of bla
nki
ng pu
nchi
ng compou
nd die a
nd a set of si
ngleworki
ng seque
nce be
ndi
ng die are adopted i
n the desig
n.The layout pla
n is the cor
nersto
ne of the stampi
ng die desig
n,which determi
neswhether the material belt is fed from fro
nt to back or from left to right,a
nd fi
nallydetermi
nes the form of the mold base,a
nd determi
nes the desig
n scheme of usi
ng the rear guide pillar mold base.The
n,the pu
nchi
ng force of theworkpiece is calculated i
n detail,a
nd the appropriate press is selected.Fi
nally,through the calculatio
n of the cutti
ng edge size,the pu
nch,die,pu
nch a
nd die,aswell as the fixed plate of the discharge plate of the die are desig
ned.Fi
nally,thewhole die is i
ntegrated,a
nd the overall assemblydrawi
ng a
nd part drawi
ng of the die are draw
n byusi
ng CAD two-dime
nsio
nal software,a
nd the i
nstructio
ns are sorted out Book,a
nd a fi
nal summary. Keywords: stampi
ng die; U-shaped card; compou
nd die; layout drawi
ng; die base; pu
nch 目录 摘要1 Abstract 2 第一章绪论5 1.1选题的意义与目的5 1.2文献综述5 1.3研究现状6 1.4设计思路与创新思路7 第二章U形卡片的冲压工艺分析9 2.1零件的材料分析9 2.2零件工艺分析9 2.3模具结构的初步确定10 第三章U形卡片复合模的工艺计算12 3.1毛坯尺寸参数的计算12 3.2排样设计13 3.3冲裁力15 3.3.1落料力15 3.3.2冲孔力15 3.3.3落料时的卸料力15 3.3.4冲孔时的推件力15 3.3.5冲床的总压力15 3.4弯曲力的计算16 3.3压力机的确定17 3.4压力中心的计算17 3.5刃口尺寸计算19 3.5.1冲孔刃口尺寸计算20 3.5.2落料刃口尺寸计算21 3.5.3弯曲尺寸的计算21 3.6本章小结23 第四章复合模的零部件设计与选用24 4.1模具主要零部件的设计24 4.1.1凹模的设计24 4.1.2卸料板的设计25 4.1.3.凸凹模的设计26 4.1.4.凸模的设计27 4.1.5其他零部件的设计28 4.2定位零件的设计29 4.2.1.挡料销的设计29 4.2.2.导料销的设计30 4.3推件装置的设计30 4.4弹性元件的选用31 4.5模架及其零件的设计31 4.6导柱、导套的选用32 4.7上、下模座的选用32 4.8模柄的选用32 4.9螺钉、销钉的选用33 4.10模具的总体结构设计34 第五章弯曲模的零部件设计与选用35 5.1模具主要零件35 5.2模架和模座的选择37 5.3弯曲模装配图39 总结40 谢辞41 参考文献42