机械5

汽车电机防尘盖冲压工艺及模具设计 摘要 随着模具制造的技能化逐步向科学化发展，逐渐由以前手动方式发展为利用软件等高科技方式来辅助设计的完成。冷冲模是其中的一种。 本次课题为汽车电机防尘盖冲压工艺及模具设计，其目的是，综合运用所学课程的理论和实践知识,设计一副完整的模具训练、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：汽车电机防尘盖；冲压工艺；模具设计；工艺计算 Abstract With the gradual developme
nt of mould ma
nufacturi
ng tech
nology to scie
nce, gradually from the ma
nualway to the use of software a
nd other high-tech mea
ns to assist the completio
n of desig
n. Cold die is o
ne of them. This subject is the stampi
ng process a
nd die desig
n of automobile motor dust cover. The purpose is to desig
n a complete mold trai
ni
ng, trai
ni
ng a
nd improveme
nt of theirwork ability by usi
ng the theoretical a
nd practical k
nowledge of the course. Co
nsolidati
ng a
nd expa
ndi
ng the co
nte
nts of the mold specialized course, masteri
ng the methods, steps a
nd releva
nt tech
nical specificatio
ns of mold desig
n a
nd ma
nufacturi
ng. Skilled access to releva
nt tech
nical data to master the basic skills of mold desig
n a
nd ma
nufacture, such as tech
nical a
nalysis of parts, demo
nstratio
n of mould process pla
n, process calculatio
n, processi
ng equipme
nt selectio
n, ma
nufacturi
ng process, collectio
n a
nd co
nsulti
ng desig
n data, drawi
ng a
ndwriti
ng desig
n tech
nical docume
nts. The stampi
ng process a
nd die desig
n should be combi
nedwith the actual co
nditio
ns of the equipme
nt a
nd perso
n
nel of the factory. From the aspects of the parts quality, productio
n efficie
ncy, productio
n cost, labor i
nte
nsity, e
nviro
nme
ntal protectio
n a
nd productio
n safety, the tech
nology is adva
nced, eco
nomical a
nd safe to use. The productio
n of stampi
ng parts guara
ntees to meet the tech
nical requireme
nts of the desig
n drawi
ngs, reduces the process cost of stampi
ng as much as possible a
nd e
nsures safe productio
n. Keywords: Automobile Motor dust cover; stampi
ng process; mold desig
n; process calculatio
n 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3 1.1.冲裁件的结构工艺性4 1.1.1.冲裁件的形状4 1.1.2.冲裁件的尺寸精度4 第二章、制件冲压工艺方案的确定5 2.1.冲压工序的组合5 2.2.冲压顺序的安排5 第三章、制件排样图的设计及材料利用率的计算6 3.1.展开尺寸的计算6 3.2.制件排样图的设计8 3.2.1.搭边与料宽9 3.3.材料利用率的计算10 第四章、确定总冲压力和选用压力机及计算压力中心11 4.1.落料拉伸模冲压力计算11 4.1.1.冲裁力的计算11 4.1.2.拉伸力计算11 4.2.翻边冲孔力的计算12 4.3.压力中心的计算13 4.4.压力机的选用15 第五章、凸、凹模刃口尺寸计算16 5.1.冲裁凸模和凹模刃口尺寸计算16 5.2.拉伸模17 5.3.翻边模尺寸计算方法18 第六章、模具整体结构形式设计20 6.1.拉伸模结构形式： 20 6.2.翻边冲孔模的结构形式21 第七章、模具零件的结构设计22 7.1.拉伸凸模的设计22 7.2.凸凹模的设计22 7.3.拉深凸模固定板的设计23 7.4.压边板的设计24 7.5.翻边凹模设计24 7.6.翻边凸模设计25 7.7.冲孔凸模设计26 第八章、模具零件的加工28 第九章、模具的总装配（以拉伸模为例） 29 设计小结30 致谢32 参考文献33