摘要
模具工业科学技术的繁荣,逐渐成为评价一个国家工业生产、经济实力的重要因素。机械工业技术的快速发展,对于成长型企业,如果能达到这个层次,能壮大企业的发展规模。机械工业技术是集模具生产制造、电脑技术应用、自动化操作、数控编程等行业基础为一体的技术学科。
随着科学技术的发展,汽车电子产品的市场越来越大,而产品的外观、颜色、质感等主要环节,对此关于产品进行了新的设计环节,这次设计根据使用情况, 调整了模具三维设计。
这课题是对模具三维设计,根据所学的软件使用 UG、proe 等画图软件进行三维画图,根据零件图的结构实行工艺分析。第一步对连接件结构工艺特点进行研究,分析零件图;根据产品的生产情况初步选择冲压生产设备;接下来对零件的生产进行各个方案的研究对比,从确定的计划中对凸模、凹模以及工作零部件的相关计算、校核。在这过程中确定模架,模板厚度、垫板厚度、固定板厚度、上模板、下模板等相关尺寸要求。
第二步根据冲压模具设计的原理对模具的零部件进行计算和校核,保证设计出来的模具结构图能够符合实际生产工作,在这些工作中撰写出设计说明书。然后使用软件画出模具设计的工程图和零部件图纸。
根据对模具设计,我不仅把机械工程专业相关的主要课程复习了一遍,还需要把课本的知识运用到实际生产中去,这提高了我对专业基础知识的记忆力,根据所学的专业知识设计出结构合理的模具。在进行汽车备胎托盘弯曲连接件模具设计时,我不但运用大学期间所学到的知识。还进行了探索分析,加强巩固和理解,达到预期的设计效果。
关键词:冲压模具、弯曲成形、冲孔模
Abstract
Mold industry science and technology prosperity, has gradually become a national industrial production, economic strength of the important factors. The rapid development of machinery industry technology, for growth-oriented enterprises, if you can achieve this level, to expand the scale of development of enterprises. Mechanical industry technology is a set of mold manufacturing, computer technology applications, automation operations, CNC programming and other industry as one of the technical disciplines.
With the development of science and technology, automotive electronics products market is growing, and the product appearance, color, texture and other major links, this product on the new design links, the design according to the use of the adjustment of the car Three - Dimensional Design of Die for Curved Joint of Tire Tray.
This topic is a three-dimensional design of the molds of the car spare tire pallets, according to the software used to use UG, proe and other drawing software for three-dimensional drawing, according to the structure of the parts diagram of the implementation of process analysis. The first step is to study the structural characteristics of the curved parts of the car spare tire trays, analyze the parts drawings, and select the stamping production equipment according to the production situation of the products. Then, the production of the parts is compared with each other. On the punch, die and the relevant parts of the relevant calculation, check. In this process to determine the mold, template thickness, plate thickness, fixed plate thickness, the template, the next template and other related size requirements.
The second step according to the principle of stamping die design of the mold parts and components to calculate and verify to ensure that the design of the mold structure can be consistent with the actual
production work, in these work to write the car spare tire tray connection design instructions. And then use the software to draw the mold design drawings and parts drawings.
Based on the design of the curved parts of the car spare tire tray, I have not only reviewed the major courses related to the mechanical engineering profession, but also applied the knowledge of the textbook to the actual production and improved my memory of the basic knowledge of the profession. The professional knowledge of the design of a reasonable structure of the mold. I used the knowledge I learned during my college when I was designing a mold for a car spare tray. Carried out exploratory analysis, strengthen the consolidation and understanding, to achieve the desired design results.
Key words: stamping die, bending forming, punching mold
目 录
1 任务分析 1
1.1 设计任务 1
2 方案拟定 3
2.1 工艺分析 3
2.2 工艺方案拟定 3
2.3 工艺规程编制 4
3 拉深工艺及模具设计 5
3.1 毛坯尺寸计算 5
3.2 拉深尺寸及拉深力的确定 6
3.2.1 拉深系数的确定 6
3.2.2 拉深次数的确定 6
3.2.3 拉深工序尺寸的计算 7
3.2.4 拉深力的计算 7
3.3 压力设备选取 7
3.3.1 压力机的公称压力的选取: 7
3.4 模具结构的设计 8
3.4.1 凹凸模的设计计算 8
3.4.2 其他零件的选用 10
4 切边模具设计 17
4.1 冲裁力和压力中心计算 17
4.1.1 冲裁力的计算 17
4.1.2 冲压模具压力中心的确定: 17
4.2 冲压设备选用 18
4.2.1 压力机的公称压力的选取 18
4.3 模具结构设计 18
4.3.1 凹凸模的设计计算 18
4.3.2 其他零件的选用 21
5 弯曲模具设计 28
5.1 工艺分析及方案拟定 28
5.1.1 工艺性分析 28
5.2 弯曲工艺计算 29
5.2.1 弯曲力的计算 29
5.2.2 顶件力的计算 30
5.3 压力机公称压力的确定 30
5.3.1 压力机的选用 30
5.4 弯曲模具结构设计 30
5.4.1 模具工作部分尺寸计算 30
5.4.2 主要零部件结构设计与选用 31
6 冲孔模具设计 39
6.1 工艺分析及方案拟定 39
6.1.1 工艺分析 39
6.2 冲裁工艺力计算 39
6.2.1 冲裁力的计算 39
6.2.2 卸料力力的计算 40
6.3 压力机公称压力的选取及冲压设备选用 40
6.3.1 压力机的选取 40
6.4 模具结构设计 41
6.4.1 凹凸模的设计计算 41
6.4.2 主要零部件结构设计与选用 43
7 设计总结 ........................................ 错误!未定义书签。参考文献 55