开封大学

冲压模毕业设计说明书

——U 形件弯曲

系 别： 机电工程系

专 业： 模具设计与制造专业

班 级： 2008 级（2）班

学 号： 20080XXXXX

姓 名： 王精华

指导教师： 姬裕江

完成日期：2010年 12 月 26 日

答辩日期： 年 月 日

开封大学毕业设计说明书

U 形件弯曲模设计

摘 要

随着全球经济一体化的深入，模具工业在国民经济中所发挥的作用越来越明显。

模具设计水 平的高低直接影响产品的质量及生产效率。

设计本模具是为了制造普通 U 形弯件。设计中分析了零件的结构及工艺性，拟

订该零件的冲 压工艺为“切边—弯曲”，讨论了弯曲零件毛坯展开形状和尺寸的确定

方法，设计了落料模和弯曲 模，对关键零件的结构设计作了详细阐述，并指出了模

具设计时的注意事项。其中，弯曲成形模 是本设计的重点，将切边弯曲集中于一

套模具中，使得冲件的质量和生产效率较高，满足了生产

需要。

由于模具设计是一种经验性较强的设计，经过长期发展积累了大量丰富的冲压工

艺技术资料， 在设计这两套模具时必然要借鉴这些经验数据，含括了落料模、弯曲

模、拉深模中常用的工艺数 据以及模具材料的选取和压力机基本参数等等.

关 键 词

冲压工艺 毛坯展开 弯曲成形模 CAD

ABSTRACT

Along with global economic integration thorough, the mold industry the function which

displays in the national economy is more and more obvious.Mold design level height direct

influence product quality and production efficiency. Designs this mold is in order to make

ordinary U shape curved.In the design has analyzed the components structure and the

technology capab ility, drafts this components the ramming craft is “the cutting edge - -

curving”, discussed the curving components semifinished materials to launch the shape and

the size definite method, has designed the cut die and the bending die, has made the detailed

elaboration to the essential components structural design, and had pointed out the mold

designed when matters needing attention.Among them, the curving molding machine is this

design key point, concentrates curving the cutting edge in set of molds, caused to flush a

quality and the production efficiency is high, has met the production needs. Because the mold

design is one kind of empirical strong design, passed through the long -term development to

accumulate the massive rich ramming processing technology material, when designed these

two sets of molds had to profit from these empirical data inevitably, including has included the

cut die, the bending die, in the drawing mold the commonly used craft data as well as mold

material selection and press basic para meter and so on.

KEYWORD

Rough start stamping process bending modulus CAD

目 录

目录

摘 要 ................................................................................................................................................................................................. 3

关 键 词 ......................................................................................................................................................................................... 3

Abstract ............................................................................................................................................................................................... 4

Keyword .............................................................................................................................................................................................. 4 设计课题 ............................................................................................................................................................................................ 6

设计内容 ............................................................................................................................................................................................ 7

冲压件工艺分析 ......................................................................................................................................................................... 7 主要设计计算.............................................................................................................................................................................. 7

1．毛坯尺寸计算 ................................................................................................................................................................. 7

2．弯曲力计算 ...................................................................................................................................................................... 8

3．凸凹模尺寸确定 ............................................................................................................................................................. 9

4.凸凹模间隙的确定 .......................................................................................................................................................... 9

5.凹模圆角半径与凹模深度的确定 ............................................................................................................................. 9

6.压力中心的计算 ............................... …… 此处隐藏：8327字，全部文档内容请下载后查看。喜欢就下载吧 ……