弯曲毕业设计说明书-汪瑞
时间:2025-04-05
时间:2025-04-05
弯曲 弯头,冲凹毕业设计
学校代码:11509
学 号:0806031007
Hefei University
本科毕业设计(论文BACHELOR DISSERTATION
论文题目:压形、弯爪复合工艺与模具设计 学科专业: 材料成型及控制工程 作者姓名: 汪 瑞 导师姓名: 周 伟 完成时间: 2012.5.25
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弯曲 弯头,冲凹毕业设计
压形、弯爪复合工艺与模具设计
摘 要
冲压模具在实际工业生产中应用广泛。冲模是完成冲压成形工作不可缺少的工艺装备。本次模具设计主要是弯曲模具工艺设计,弯曲是将金属坯料沿弯曲线弯成具有一定角度和形状的成形工艺方法。在这次设计中,我设计的是压形、弯爪复合模具,主要进行了弯曲件的工艺分析,并绘制UG三维工件图;弯曲件坯料展开尺寸的计算,弯曲力的计算与压力机的选用;弯曲模工作部分尺寸的计算,其中包括:凸凹模的外形尺寸确定,凸凹模的结构和固定形式;还对弯曲件的回弹以及回弹因素进行了分析,减小回弹的一些措施的应用;最后查阅相关资料,对模具的定位零件,卸料零件,固定和紧固零件,导向零件的设计;一些材料的热处理,一些的零件的材料选择;本次设计在指导老师的帮助下,顺利完成了,从设定零件的工艺方案,比较工艺方案并确定工艺方案。计算毛坯的尺寸,计算各个工序的工作压力,设计并绘出模具简图,选取各个合适的零件。在模具简图的基础上进行模具结构工艺性分析,进行模具结构设计并选择冲压设备。我们都做出了努力,这也是我们准备工作前的一次重要经验。
关键词:模具设计;工艺方案;结构设计;弯曲工艺
弯曲 弯头,冲凹毕业设计
Pressure form, bending claw the compound technology and die design
ABSTRACT
unching die has been widely used in industrial. more Self-acting feed technology of punching die is also used in production, punching die could increase the efficience of production and could alleviate the work burden,so it has significant meaning in technologic progress and economic value. In this design, first we use the 3D sculpt function of UG to create 3D model of the part. During the procedure, the workpiece’s craftwork character is analyzed ,the workpiece’s 2-D drawing and 3-D mold are made, so that the workpiece can be better comprehended. Learn the structural craftwork character of the workpiece, so does the drawing and forming craftwork character. Make sure the workpiece’s craft project, compare them and make the final disicion. Calculate the size of the roughcast and select its shape. Calculate the times of the drawings , make sure the size of the semi-manufactured workpiece of every steps, and draw the working procedure’s sketch. Calculate the every working pressure, design and draw die’s sketch, select every appropriate parts. Comprehend every needed dies’ character and the issues that is needed to be payed more attention. On the base of the dies’ sketch ,the dies’structure is analyzed, and then go on designing their structures and selecting punch equipments.
Keywords: Craft project ;manufacture ;structure design;bending process
弯曲 弯头,冲凹毕业设计
目 录
第一章 引言 ......................................................................... - 1 -
1.1冲压技术的发展及应用 ......................................................... - 1 - 1.2本课题的目的及意义 ........................................................... - 2 - 1.3本课题的主要内容和要求 ....................................................... - 2 - 第二章 工艺分析及模具设计 ............................................................ - 5 -
2.1弯曲件的工艺分析 ............................................................. - 5 - 2.2工艺方案的分析和确定 ......................................................... - 7 -
2.2.1工艺方案分析 ........................................................... - 7 - 2.2.2.冲压工艺方案的确定 ..................................................... - 8 - 2.3弯曲件坯料展开尺寸的计算 ..................................................... - 8 - 2.4弯曲力的计算与压力机的选用 ................................................... - 9 - 2.5弯曲模工作部分尺寸设计 ...................................................... - 12 - 第三章 弯曲工艺的相关简介 ........................................................... - 16 -
3.1弯曲工艺的概念 ............................................................... - 16 - 3.2弯曲的基本原理 ............................................................... - 16 - 3.3弯曲件的质量分析 ............................................................. - 16 - 第四章 模具结构及设计 .............................................................. - 21 -
4.1模具类型的选择 .............................................................. - 22 - 4.2模具工作零件的设计 .......................................................... - 23 - 4.3模具定位零件的选择 .......................................................... - 27 - 4.4模具卸料零件的选择 .......................................................... - 28 - 4.5模具固定与紧固零件的选择 .................................................... - 28 - 4.6模具导向零件的选择 .......................................................... - 28 - 4.7模具材料的选择 .............................................................. - 30 - 第五章 冲压设备的选择 …… 此处隐藏:8697字,全部文档内容请下载后查看。喜欢就下载吧 ……