1_冲压模具毕业课程设计说明书论文参考资料

摘 要

本设计的零件是垫片,首先先分析零件的冲压工艺；确定了模具的总体结构；结合零件的冲压工艺设计及模具的总体结构设计排样图；根据排样图，计算利用率、冲载力、压力、选用设备及刃口的尺寸。根据计算结果用CAD对模具进行具体结构设计，画出装配图和零件图，最后选择合适的模件材料并对模具进行组装。从而完成整个模具的设计冲压模具毕业设计过程。

冲压是一种借助冲压机床动力，通过改变材料物理状态来实现物品外形的加工方法。而模具是用来进行冲压所必需的工具。本文以模具设计为核心展开，描述垫片零件的冷冲压模的设计毕业设过程，重点研究制件工艺与模具结构设计等内容。

关键词：冲裁,落料,成型,冲孔

Abstract

First analysis of the stamping process parts; to determine the overall structure of mold; combination of parts stamping process and die design of the overall structure of the layout graph; layout plan based on calculating the utilization rate, red edge is contained, pressure, choice of equipment and cutting the size of . According to the information re-use PRO / E, the design of the mold, and then converted into two-dimensional three-dimensional map of assembly drawings and parts marked maps and compile card processing parts.

Stamping is a kind of processing method which used the punch press motive power and through changing material’s physical condition to make article appearance.And mould is a necessary tool to proceed stamping.This article takes mould design as core to launch,describes the design process of cover cap forming cold stamping progressive mould,focus on workpiece forming technology and mould structure design.

Keywords: sheet forming, blanking, piercing, inverted compound die

目 录

摘 要 .....................................................................................................................I Abstract ................................................................................................................. II 1 前言 .................................................................................................................. 1

1.1 课题研究的主要内容及意义 ................................................................ 1 1.2 选题目的 ................................................................................................ 1 1.3 国内外现状及发展趋势 ........................................................................ 2 1.4 毕业设计题目 ........................................................................................ 4 2 确定模具冲压工艺方案 ................................................................................... 5

2.1工件的工艺性分析 ................................................................................. 5

2.1.1冲压件材料分析 .......................................................................... 5 2.1.2零件结构分析 .............................................................................. 6 2.1.3零件的尺寸精度分析 .................................................................. 6 2.2工艺方案 ................................................................................................. 6 2.3模具结构的初步确定 ............................................................................. 6 2.4冲裁模结构简图及工作原理 ................................................................. 7 2.5排样方式的确定及计算 ......................................................................... 7

2.5.1 排样 ............................................................................................ 7 2.5.2 搭边 ............................................................................................ 7 2.5.3 材料利用率计算 ......................................................................... 7

3 模具的结构设计与计算 .................................................................................. 8

3.1冲压力的计算 ......................................................................................... 8

3.1.1 冲裁力计算 ............................................................................... 8 3.1.2 卸料力及推件力计算 ............................................................... 8 3.2压力中心的确定 ..................................................................................... 9 3.3工作零件刃口尺寸的计算 ................................................................... 10

3.3.1落料凸凹模的计算 .................................................................... 11 3.3.2冲孔凸凹模的计算 .................................................................. 12 3.4确定凹模、凸模尺寸 ........................................................................... 12

3.4.1落料凹模板的尺寸 .................................................................. 12 3.4.2凹模厚（高） ........................................................................... 12 3.4.3凹模边壁厚 .............................................................................. 13 3.4.4凹模板边长 .............................................................................. 13 3.4.5凸模的外形设计 ...................................................................... 13

3.5其它模具零件结构尺寸及选用械设计 ............................................... 14

3.5.1其它模具模板的尺寸 .............................................................. 14 3.5.2模架的选用 .............................................................................. 14 3.5.3导套的选用 .............................................................................. 14 3.5.4导柱的选用 .............................................................................. 15 3.5.5橡胶的计算及选用 .................................................................. 16 3.5.6内六角螺钉的选用 .................................................................. 16 3.5.8圆柱销、挡料销、推件销的选用 .......................................... 17 3.5.9模柄的选用及加工 .................................................................. 17 3.5.10模具的闭合高度计算 ............................... …… 此处隐藏：5309字，全部文档内容请下载后查看。喜欢就下载吧 ……