机械5

摘要 阐述了复合模的结构设计工程及其工作过程，通过系统的工艺分析，采用冲孔、落料等工序进行加工。通过计算工艺力以确定模具压力中心，并选择压力机的型号。落料凹模通过凹模固定板与下模座连接来固定。模具采用下出料方式和弹性卸料卸料装置。本模具结构较简单，性能可靠，工作平稳，提高了生产效率，降低劳动强度和生产成本。 关键词：级进模冲压工艺模具设计冲孔落料 Abstract The passage expou
nds o
n the structure desig
ni
ng project a
ndwork process of the progressive die,a
nd uses someworki
ng procedures,such as pu
nchi
ng,fla
ngi
ng,bla
nki
ng a
nd so o
n,to process through the tech
nologic a
nalysis of the system.Through calculati
ng the process to determi
ne the ce
nter of the die’s pressure,a
nd select the model of the presses.Bla
nki
ng die is fixed byco
n
necti
ng the die holderwith the die set.The die adopts thewayof lower ejectio
n a
nd elasticitydischarge devices.Its structure is relativelysimple,the performa
nce is reliable a
nd thework is steady.It has improved the produci
ng efficie
ncya
nd reduced the i
nte
nsityof labor a
nd cost of productio
n. Keywords:Progressive die; Stampi
ng process; Mold desig
ni
ng; Pu
nch; Bla
nki
ng 目录 1绪论1 1.1概述1 1.2冲压模地位及我国冲压技术1 2工件工艺性分析及方案确定3 2.1工件工艺性分析3 2.2工艺方案确定4 3排样及计算材料利用率6 3.1计算预冲孔大小6 3.2确定排样方式6 3.3计算材料利用率6 4冲裁力及压力中心计算8 4.1.落料力8 4.2卸料力8 4.3冲孔力8 4.4顶件力9 4.5翻边力9 4.6总冲压力9 4.7计算压力中心9 5主要工作部分尺寸计11 5.1落料刃口尺寸11 5.2翻边工作刃口尺寸12 6凸模、凹模及凸凹模的结构设计及校核14 6.1落料凹模结构设计14 6.2落料、翻边凸凹模外形尺寸17 6.3冲孔、翻边凸凹模外形尺寸17 6.4冲孔凸模外形尺寸18 7主要零部件设计21 7.1模柄的设计21 7.2固定板和垫板的设计22 7.3定位零件的设计23 7.4出件机构的设计25 8模架的选择30 8.1模架的选择30 8.2模具的闭合高度计算30 9选择冲压设备31 10模具总装图及装配工艺性32 10.1模具工作原理32 总结33 致谢35 参考文献36