机械5

多孔定位片零件冲压工艺及模具设计 摘要 多孔定位片零件冲压工艺及模具设计是在模具专业理论教学之后进行的实践性教学环节。是对所学知识的一次总检验，是走向工作岗位前的一次实战演习。其目的是，综合运用所学课程的理论和实践知识,设计两副完整的模具训练、培养和提高自己的工作能力。巩固和扩充模具专业课程所学内容，掌握模具设计与制造的方法、步骤和相关技术规范。熟练查阅相关技术资料。掌握模具设计与制造的基本技能，如制件工艺性分析、模具工艺方案论证、工艺计算、加工设备选定、制造工艺、收集和查阅设计资料，绘图及编写设计技术文件等。 冲压工艺与模具设计应结合工厂的设备、人员等实际情况，从零件的质量、生产效率、生产成本、劳动强度、环境的保护以及生产的安全性各个方面综合考虑，选择技术先进、经济合理、使用安全可靠的工艺方案和模具，以使冲压件的生产在保证达到设计图样上的各项技术要求，尽可能降低冲压的工艺成本和保证安全生产。 关键词：多孔定位片、冲压工艺、模具设计、工艺性分析、制造工艺 Abstract The stampi
ng process a
nd die desig
n of the porous parts are the practical teachi
ng li
nks after the mold theory teachi
ng. Is to lear
n the k
nowledge of a ge
neral i
nspectio
n, is towork before a practical exercise. Its purpose is to use the theory a
nd practical k
nowledge of the course, desig
n two complete mold trai
ni
ng, trai
ni
ng a
nd improve their ability towork. Co
nsolidate a
nd expa
nd the co
nte
nts of the mold professio
nal courses, master mold desig
n a
nd ma
nufacturi
ng methods, steps a
nd related tech
nical specificatio
ns. Familiarwith tech
nical docume
nts. Master the basic skills of mould desig
n a
nd ma
nufacturi
ng process of the parts, such as mold process a
nalysis, scheme demo
nstratio
n, process calculatio
n, process equipme
nt selectio
n, ma
nufacturi
ng process, collectio
n a
nd access to desig
n i
nformatio
n, drawi
ng desig
n a
nd the preparatio
n of tech
nical docume
nts etc.. The actual situatio
n of equipme
nt a
nd perso
n
nel for stampi
ng process a
nd die desig
n should be combi
nedwith the factory, from the productio
n quality, productio
n efficie
ncy, productio
n cost, labor i
nte
nsity, e
nviro
nme
ntal protectio
n a
nd all productio
n safety co
nsideratio
n, choose the adva
nced tech
nology, reaso
nable eco
nomy, safety a
nd reliable use of process a
nd die, i
n order to make the stampi
ng parts the productio
n to meet the tech
nical requireme
nts o
n the desig
n drawi
ng, stampi
ng process cost is reduced a
nd e
nsure safe productio
n as soo
n as possible. Keywords: porous positio
ni
ng plate, stampi
ng process, die desig
n, process a
nalysis, ma
nufacturi
ng process 目录 摘要I Abstract II 第一章、引言1 第二章、冲裁件的工艺性分析4 1.1.冲裁件的形状5 1.2.冲裁件的尺寸精度5 第二章、制件冲压工艺方案的确定6 2.1.冲压工序的组合6 2.2.冲压顺序的安排6 第三章、制件排样图的设计及材料利用率的计算7 3.1.预孔尺寸的计算7 3.2.制件排样图的设计7 3.3.材料利用率的计算9 第四章、确定总冲压力和选用压力机及计算压力中心10 4.1.落料冲孔力计算10 4.2.翻孔力的计算11 4.3.压力中心的计算11 4.4.压力机的选用13 第五章、凸、凹模刃口尺寸计算14 5.1.落料冲孔模14 5.2.凸模、凹模刃口尺寸计算方法15 5.3.翻孔模尺寸计算方法16 第六章、模具整体结构形式设计17 6.1.拉伸模结构形式： 17 6.2.翻孔模的结构形式18 第七章、模具零件的结构设计19 7.1.落料凸凹模的设计19 7.2.落料凹模的设计19 7.3.冲孔凸模的设计20 7.4.凸凹模固定板的设计20 7.5.翻孔凹模设计21 7.6.翻孔凸模设计21 第八章、模具的总装配（以翻孔模为例） 23 设计小结24 致谢26 参考文献27