机械5

电器盖片（BS14-F122）钣金成形工艺及模具设计 摘要：本课题为板料落料冲孔复合模的设计，本文介绍的模具实例结构简单实用，使用方便可靠。本套模具的设计不是以复杂模具的设计为主，而主要是对模具设计知识的系统学习和设计的练习，以达到掌握冲压模具设计的基本技能的目的。 首先，对零件做整体的分析。包括：材料的使用、精度的要求、工序的要求以及成本的要求等。为了降低成本，对排样方式进行了合理的设计；其次，对零件整体进行工艺设计。通过工艺目的的设计、工序的顺序设计、压力机的选择等来实现所要达到的要求；再次，想要保证制件精度的要求，就要考虑模具刃口尺寸的计算。因为刃口是冲制工件的主要工作部分，刃口处的精度就决定了制件的精度，就必须根据公差来进行精确计算。 最后，根据计算出的模具刃口尺寸设计出相应的凸凹模，并且查找资料选择冷冲压模的标准零件，符合标准后，就把凸凹模与其它各零部件进行总体装配。在确定了模具体闭合高度后，选出合适的压力机在调试校验后并进行试冲加工，以达到符合的标准，最终完成链板片的加工。 关键词：复合模冲压工艺模具设计冲孔落料 Abstract The topic is the chai
n plate pu
nchi
ng bla
nki
ng compou
nd mold desig
n a
nd the mold of article described a
n i
nsta
nce is simple a
nd practical, easy to use a
nd is reliable. This mold is
not primarily desig
ned to complex desig
n, but mai
nly o
n a systematic study of mold desig
n k
nowledge a
nd practice, i
n order to achieve the purpose of master the basic skills of stampi
ng mold desig
n. First of all, do a thorough a
nalysis for the parts,which i
nclude the usi
ng of the material, the requireme
nt of accuracy a
nd the requireme
nt ofworki
ng procedure a
nd costs a
nd so o
n. For decli
ni
ng low cost, proceeded the reaso
nable desig
n to the row ki
nd method. Seco
ndly, do processi
ng desig
n for thewhole parts a
nd the purpose by craft desig
ni
ng a
nd order of theworki
ng procedure a
nd by the choice of pu
nchi
ng machi
ne. Thirdly, co
nsider the calculatio
n of size of the mould cutti
ng edge i
n order to meet the
need of accuracy. Because the cutti
ng edge is the mai
nworki
ng part of the pu
nchi
ng processi
ng, the accurate cutti
ng edge guara
ntees the accurate parts. Soyou
needed to tolera
nce do accurate calculatio
n. Fi
nally, accordi
ng to the calculated the size of mold cutti
ng edge desig
n the correspo
ndi
ng pu
nch a
nd mold, a
nd fi
nd i
nformatio
n o
n selectio
n criteria for cold stampi
ng parts, meet the sta
ndards, put the pu
nch a
nd moldwith the other compo
ne
nts to the overall assembly. I
n determi
ni
ng the specific mold closed height, select the appropriate press i
n the debug a
nd testvalidatio
nwashed after processi
ng, to meet complia
nce sta
ndards, the fi
nal completio
n of the processi
ng chai
n plate. Keywords：composite modulus, stampi
ng process, mold desig
n, pu
nchi
ng bla
nki
ng 目录 1绪论1 2冲压工艺分析及工艺方案的制定2 2.1材料分析2 2.2零件结构2 2.3尺寸精度3 2.4冲裁工艺方案的确定3 2.5冲裁工艺方法的选择4 2.6冲裁结构的选取5 3排样设计与计算7 3.1排样方法与原则7 3.2确定搭边值7 3.3送料步距与条料宽度的计算7 3.4材料利用率的计算8 4冲裁力计算10 4.1落料力、冲孔力、卸料力、推件力的计算10 4.2压力机的选择12 5凸凹模的设计13 5.1尺寸计算原则13 5.2凸、凹模刃口尺寸计算13 5.3凸模、凹模、凸凹模的结构设计14 6模具主要零部件设计17 6.1定位方式的选择17 6.2卸料﹑出件方式的选择17 6.3弹性元件的选择18 6.4模架的选择20 7绘制模具总装图及零件图21 7.1装配图绘制21 7.2模具零件图的绘制21 致谢22 参考文献23