机械5

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。 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,本次设计选用的工件是放音按键，设计出了落料冲孔复合模、弯曲模两幅完整的模具设计。通过本次设计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：模具；放音按键；落料冲孔；弯曲模；工艺计算；加工设备 Abstract With the tech
nological developme
nt of die a
nd mould ma
nufacturi
ng, it has gradually cha
nged from ma
nual mode to assista
nt desig
n usi
ng high-tech methods such as software. Cold stampi
ng die is o
ne of them. Graduatio
n desig
n is a practical teachi
ng li
nk after theoretical teachi
ng of die a
nd mould specialty. It is a ge
neral test of the k
nowledge lear
ned a
nd a practical exercise before goi
ng towork. The purpose of this desig
n is to use the theory a
nd practice k
nowledge of the course comprehe
nsively. The selectedworkpiece is the SOUND-PLAYING butto
n, a
nd two complete die desig
ns of bla
nki
ng pu
nchi
ng compou
nd die a
nd be
ndi
ng die are desig
ned. Through this desig
n to co
nsolidate a
nd expa
nd the co
nte
nt of the professio
nal course of die a
nd mould, master the methods, steps a
nd related tech
nical specificatio
ns of die a
nd mould desig
n a
nd ma
nufacture. Skillful access to releva
nt tech
nical i
nformatio
n. Master the basic skills of die desig
n a
nd ma
nufacturi
ng, such as process a
nalysis of parts, demo
nstratio
n of die process pla
n, process calculatio
n, selectio
n of processi
ng equipme
nt, ma
nufacturi
ng process, collecti
ng a
nd co
nsulti
ng desig
n i
nformatio
n, drawi
ng a
nd compili
ng desig
n tech
nical docume
nts, etc. The desig
n of stampi
ng process a
nd die should be combi
nedwith the actual situatio
n of equipme
nt a
nd perso
n
nel i
n the factory, co
nsideri
ng comprehe
nsively the quality of parts, productio
n efficie
ncy, productio
n cost, labor i
nte
nsity, e
nviro
nme
ntal protectio
n a
nd safety of productio
n, a
nd selecti
ng tech
nological schemes a
nd dieswith adva
nced tech
nology, reaso
nable eco
nomy, safe a
nd reliable use, so as to e
nsure the productio
n of stampi
ng parts to achieve the desig
n drawi
ngs. Various tech
nical requireme
nts, as far as possible to reduce the cost of stampi
ng process a
nd e
nsure safe productio
n. Keywords: die; playback butto
n; bla
nki
ng pu
nchi
ng; be
ndi
ng die; process calculatio
n; processi
ng equipme
nt 目录 摘要1 Abstract 2 引言4 第一章、冲裁件的工艺性分析6 1.1.冲裁件的形状7 1.2.冲裁件的尺寸精度8 第二章、制件冲压工艺方案的确定9 2.1.冲压工序的组合9 2.2.冲压顺序的安排9 第三章、制件排样图的设计及材料利用率的计算11 3.1.展开尺寸的计算11 3.2.制件排样图的设计12 3.3.材料利用率的计算14 第四章、确定总冲压力和选用压力机及计算压力中心15 4.1.冲压力计算15 4.1.2.卸料力的计算15 4.1.3.弯曲力的计算16 4.2.压力中心的计算17 4.3.压力机的选用18 第五章、凸、凹模刃口尺寸计算20 5.1.凸、凹模刃口尺寸计算原则20 5.2.凸、凹模刃口尺寸计算方法21 5.2.1.凸模和凹模分开加工21 5.2.2.凸模和凹模配合加工21 5.3.弯曲工序计算24 第六章、模具整体结构形式设计27 6.1.落料模结构形式： 27 6.2.弯曲模的结构形式28 第七章、模具零件的结构设计30 7.1.落料凸凹模的设计30 7.2.落料凹模的设计30 7.3.弯曲凸模的设计31 7.4.弯曲凹模的设计32 第八章、模具的总装配（以落料冲孔模为例） 34 设计小结35 致谢36 参考文献37