机械5

摘要 本次设计了一套冲孔、切边级进模具。经过查阅资料，首先要对零件进行工艺分析。经过工艺分析和对比，采用切边、冲孔工序。通过冲裁力、顶件力、卸料力等计算，确定压力机的型号。再分析对冲压件加工的模具适用类型选择所需设计的模具。得出将设计的模具类型后将模具的各工作零部件设计过程表达出来。 在文档中第一部分，主要叙述了冲压模具的发展状况，说明了冲压模具的重要性与本次设计的意义，接着是对冲压件的工艺分析，完成了工艺方案的确定。第二部分，对零件排样图的设计，完成了材料利用率的计算。再进行冲裁工艺力的计算和冲裁模工作部分的设计计算，对选择冲压设备提供依据。最后对主要零部件的设计和标准件的选择，为本次设计模具的绘制和模具的成形提供依据，以及为装配图各尺寸提供依据。通过前面的设计方案画出模具各零件图和装配图。 本次设计阐述了冲压级进模的结构设计及工作过程。本模具性能可靠，运行平稳，提高了产品质量和生产效率，降低劳动强度和生产成本。 关键词：冲压模，级进模，链板，冲裁间隙 ABSTRACT The desig
n of a set of trimi
ng a
nd pu
nchi
ng mold. Through referri
ng to i
nformatio
n, first of all, I should a
nalysis the process. Through process a
nalysis a
nd compariso
n, I use bla
nki
ng a
nd pu
nchi
ng process. Through the bla
nki
ng force, the top piece, a
nd the discharge power to determi
ne the model press. Further a
nalysis of the stampi
ng dies for processi
ng the applicatio
n to select the desired type of mold desig
n. The moldwill be desig
ned to draw upo
n the type of mold parts of thework expressed i
n the desig
n process. I
n the first part of the docume
nt mai
nly describes the developme
nt of stampi
ng die, stampi
ng die illustrate the importa
nce a
nd sig
nifica
nce of this desig
n, a
nd the
n stampi
ng parts of the process a
nalysis, completed a process to ide
ntify programs. The seco
nd part of the
nesti
ng parts of the desig
n pla
ns to complete the calculatio
n of the utilizatio
n of the material further edge bla
nki
ng process of calculatio
n a
nd Die Desig
n a
nd Calculatio
n of thework of some of the stampi
ng equipme
nt to provide a basis to choose. Fi
nally, the mai
n compo
ne
nts of sta
ndard desig
n a
nd the choice of desig
n-based mappi
ng tool a
nd provide a basis for formi
ng mold, aswell as the assembly drawi
ng to provide the basis of the size. Through the draw i
n fro
nt of mold desig
n a
nd assembly of the parts diagram Fig. The desig
n tells the structure of compou
nd mold desig
n a
ndworki
ng process. Reliable performa
nce of the mold, smooth ru
n
ni
ng, improved product quality a
nd productio
n efficie
ncy, reduce labor i
nte
nsity a
nd productio
n costs. Keywords: Stampi
ng die, Progressive dies, Chai
n-plate,Mold gap 目录 前言1 第1章冲裁工艺设计3 1.1.1工件材料3 1.1.2工件结构3 1.1.3尺寸精度3 第2章冲裁排样设计6 2.1排样的方法及排样图6 2.1.1排样的方法6 2.1.2排样图6 2.2排样的计算6 2.2.1确定搭边值6 2.2.2送料步距7 2.2.3条料宽度计算7 2.2.4材料利用率9 第3章冲压力和压力中心的计算10 3.1确定冲压力10 3.1.1冲裁力的计算10 3.1.2卸料力、推件力及顶件力的计算12 3.1.3压力机公称压力的确定14 3.1.4冲裁功14 3.2确定模具压力中心15 3.3冲压设备的选用16 第4章凸凹模刃口尺寸的确定17 4.1.1凸凹模刃口尺寸的作用17 4.1.2刃口尺寸计算原则17 4.2凸凹模刃口尺寸的确定17 第5章冲裁模典型结构设计19 5.1工作部件设计19 5.1.1冲孔凸模19 5.1.2落料凹模结构设计19 5.2定位装置设计与计算20 5.2.1定距20 5.2.2导正销21 5.3卸料装置21 5.3.1卸料装置21 5.3.2卸料装置有关尺寸计算21 5.4固定零件21 5.4.1垫板21 5.4.2模柄21 5.4.3.导料板的设计22 5.5卸料部件的设计22 5.5.1卸料板的设计22 5.5.2卸料螺钉的选用23 结论24 谢辞25 参考文献26