机械5

空气开关固定卡冲压成形工艺与模具设计 摘要：本设计题目为空气开关固定卡冲压成形工艺与模具设计，体现了板类冲压零件的设计要求、内容及方向，有一定的设计意义。通过对该零件模具的设计，进一步加强了设计者冲压模具设计的基础知识，为设计更复杂的冲压模具做好了铺垫并吸取了更深刻的经验。 本设计运用冲孔落料弯曲成形工艺及模具设计的基础知识，首先分析了工件的成形工艺及模具成形结构对制件质量的影响。介绍了空气开关固定卡冲压成形工艺与模具设计时要注意的要点，通过对制件进行工艺分析，可确定制件的成形加工用两套模具即冲孔落料正装复合模和一次弯曲成形模具。从控制制件尺寸精度出发，对该冲孔落料弯曲模的各主要尺寸进行了理论计算，以确定各工作零件的尺寸。从模具设计到零部件的加工工艺以及装配工艺等进行详细的阐述，并应用CAD进行各重要零件的设计。 关键词：复合模，工艺分析，模具零部件的加工工艺 THE FONUDATION PUNCH HLOES FALL THE MATERIAL CURVING MOLD THE DESING ABSTRACT：The topic of this desig
n is the fou
ndatio
n pu
nch holes fall the material to be curvi
ngformi
ng process a
nd die desig
n.The requireme
nt，co
nte
nt a
nd directio
n of the desig
n of the stamps formi
ng plate parts are embodied o
n this stampi
ng die desig
n.The desig
ner’s fou
ndatio
n k
nowledge of the stampi
ng die desig
n is rei
nforced a
nd is able to desig
n more complexstampi
ng die through the desig
n. The desig
n of the use of the pu
nch holes fall the material curvi
ng formi
ng process a
nd die desig
n of the basic k
nowledge,First,we a
nalyze the shape ofworkpiece formi
ng process a
nd die structure of the parts quality.I
ntroduced The fou
ndatio
n pu
nch holes fall the material curvi
ng mold desig
n to the mai
n poi
nts of atte
ntio
n,through the process of parts for a
nalysis,to determi
ne parts of the formi
ng diewith two sets of molds are the pu
nch holes fall the material true thi
ng superposable die a
nd o
ne time form the mold curvi
ng.Embarks from the co
ntrolworkpiece size precisio
n,To the fou
ndatio
n pu
nch holes fall the material be
ndi
ng die of the mai
n dime
nsio
ns of the theoretical calculatio
n to determi
ne the size of theworki
ng parts.Parts from the mold desig
n to the processi
ng tech
nologyaswell as the assemblyprocess,such as described i
n detail,a
nd the applicatio
n of CAD for the desig
n of the importa
nt parts. KEY WORD: compou
nd die,process a
nalysis,processi
ng of die parts 目录 1绪论1 1.1冲压模具行业发展现状及技术趋势1 1.2未来冲压模具制造技术发展趋势2 2冲孔落料复合模4 2.1工艺分析4 2.2工艺方案确定5 2.3主要的工艺计算6 2.3.1冲裁件坯料长度的计算6 2.3.2冲裁排样方式的确定与相关计算7 2.4模具工作零部件刃口尺寸的计算9 2.5计算冲压力和初选压力机11 2.6模具总体设计13 2.6.1模具的类型选择13 2.6.2模具主要零部件的结构设计14 2.7冲压设备的的选用及安装17 2.7.1冲压设备的选定17 2.7.2冲孔落料正装复合模冲压设备的安装18 2.7.3模具装配的技术要求19 2.8模具总装图19 3弯曲模的设计22 3.1弯曲模具的相关计算22 3.1.1弯曲模工作部分尺寸计算22 3.1.2弯曲模部分其他相关计算24 3.2初选压力机26 3.3压力中心的确定和冲压力的计算27 3.4一次弯曲成形模的设计29 3.5.一次弯曲成形模冲压设备的选定及安装32 3.6模具的总装图33 总结36 致谢38 参考文献39