金属仿形瓦冲压成形模设计 摘要 本课题是仿形瓦级进模具设计，通过冲裁件的工艺分析，确定零件能否进行冲裁，并明确在冲裁工艺及模具设计中主要解决的问题或难点所在。仿形瓦级进模模具包含折弯的基本工艺步骤，其中起伏折弯1个工步，折边一个工步。该零件材料厚度较薄，尺寸小，呈规则形状，因此采用直排样。为了便于操作和保证零件的精度，宜采用送料机和导正销配合定距，导料板导向的定位方式。考虑零件厚度较薄，采用弹性卸料方式，为了便于操作，提高生产率，模具的定位精度要求较高，因此采用四导柱模架。凸凹模通过配合加工来满足凸凹模之间的精度要求。该模具的设计过程：先通过工艺分析确定了工件的排样图（其中包含：工艺步骤的划分，条料的定距方式，凸凹模的形状等）,通过排样图确定凸凹模的尺寸，通过AUTOCAD绘制出凸凹模的工程图。 【关键词】：级进模；排样；冲孔；落料。 Abstract This topic is the desig
n of progressive die for the motor rotor core, by bla
nki
ng tech
nology a
nalysis, determi
ne if the part for pu
nchi
ng, a
nd specifically i
n pu
nchi
ng tech
nology a
nd die desig
n of the mai
n problems or difficulties is located. Progressive die for the motor rotor core co
ntai
ns two basic pu
nches a
nd bla
nki
ng process steps,which pu
nches i
ncludi
ng three seque
nces, bla
nki
ng a step. Due to the mass productio
n of parts, so usi
ng progressive die, high productio
n efficie
ncy, easy operatio
n. The part material thick
ness of a thi
n, small, rou
nd,with direct layout. For ease of operatio
n a
nd e
nsure the accuracy of parts, the use of side edge a
nd pilot pi
n combi
nedwith dista
nce, guidi
ng plate orie
nted positio
ni
ng. Co
nsider part thick
ness thi
n, flexible discharge strategies, i
n order to facilitate operatio
ns, i
ncrease productivity, stampi
ng a
nd scrap used directly by a pu
nch from the die hole pushed out of theway u
nder, because the part thick
ness of thi
n, bla
nki
ng cleara
nce isvery small, requiri
ng high positio
ni
ng accuracy of progressive die, so four-pillar. Pu
nch a
nd die through combi
nedwith processi
ng to meet the accuracy requireme
nts betwee
n the pu
nch a
nd die. The die of desig
n process: first by tech
nology a
nalysis determi
ne hasworkpiece of row sample figure(which co
ntai
ns: tech
nology steps of Divisio
n, sectio
n material ofwill fromway, pu
nch die of shape,), by row sample figure determi
ne pu
nch die of size, by AUTOCAD draws out pu
nch die of e
ngi
neeri
ng figure, the
n applicatio
n draws out die the part of three dime
nsio
nal model, i
n accorda
ncewith the requireme
ntswith o
n die the parts for Assembly. 【Keywords】: Progressive die; layout; pu
nchi
ng; bla
nki
ng. 目录 摘要I Abstract II 前言1 第一章冲压零件的工艺性分析4 1.1工序类型4 1.2零件工艺性能4 1.3零件工艺结构4 第二章毛坯展开长度的确定5 第三章弯曲力的计算6 第四章压力机的选择6 第五章弯曲模工作部分尺寸的确定9 5.1凸模圆角半径r p 9 5.2凹模圆角半径rd 9 5.3凹模深度h0 9 5.4凸、凹模间隙Z 9 5.5弯曲凸、凹模横向尺寸及公差9 第六章模具结构设计10 第七章模具结构设计12 7.1上模装配12 7.2下模装配13 第八章确定模具主要零件加工工艺过程15 8.1折弯凸模加工工艺过程15 8.2凸模固定板加工工艺过程15 8.3凹模加工工艺过程16 结论19 参考文献20 致谢21