摘要
金属板料冲压是一种在工业生产中应用广泛的加工方法。随着现代各行各业突飞猛进的发展，金属件的结构复杂，精度高，需求量多，加上对生产的安全性、操作的方便性，加工的经济性等要求也日益提高，采用单工位模具已经无法满足生产的需要，许多制造商均采用多工位级进模进行生产。因此，多工位级进模在国内外模具制造业中应用日趋广泛。多工位级进模是在普通级进模的基础上发展起来的一种模具，是当代所有模具中冲压功能最多、结构最复杂、生产效率和自动化程度最高的一种冲模。在多工位级进模结构设计过程中，首先必须设计级进模的总装结构，然后再在此基础上进行模具其他零部件的设计。本论文分析了铰链垫片的工艺性,介绍了铰链垫片多工位级进模总体结构设计，对工件进行了展开计算，确定了工件加工成型的工艺方案和排样方案,对模具进行了工艺计算，根据计算结果进行了凸模、凹模、垫板、导料板、卸料板、镶块等主要零部件的设计，还根据各标准对模具中用到的其他标准件，如模架、导柱导套等，进行了选择与设计。实践证明：该模具结构合理、可靠,并能保证产品质量,对此类零件的级进模设计有参考价值。
关键词：级进模; 铰链垫片;排样设计
Abstract
Sheet metal stamping is a widely used method in industrial production. With the rapid development of modern businesses，the structure of the metal pieces becomes more and more complex. The metal pieces also need to have high accuracy. At the same time, the demands of the production security, the ease of operation, the economy of processing are increasing. Single-stage molds can’t meet the the needs of production. Many manufacturers use the multi-position progressive die in production. Therefore, Multi-position Progressive Dies are used increasingly widespread in the die manufacturing at home and abroad. Multi-position Progressive Die is developed basing on the general progressive die. It has the most pressing function, the most complex structure, productivity and the highest degree of automation. In the design of the multi-position progressive die, we must design the assembly structure of the progressive die. And then, we design other components of it. In this page, I analyzed the manufacturability of a hinge gasket piece, as well as design of the overall structure. I also did the calculation of the workpiece, determined the workpiece’s forming process and the nesting program and did a calculation of the mold process. After that, I designed the die in all aspects. The application shows that the die is feasible and reliable in structure and can ensure the quality of the products.
Key words: progressive die; hinge gasket piece; layout design
目录
第一章绪论 (1)
1.1 引言 (1)
1.2 多工位级进模现状及发展 (2)
1.3主要研究内容 (3)
第二章模具的工艺计算 (5)
第一节设计产品图 (5)
第二节零件的工艺分析 (5)
2.2.1 产品的展开计算 (5)
2.2.2 工艺分析 (7)
2.2.3 确定工艺方案和排样设计 (7)
第三节工艺计算 (10)
2.3.1 凸、凹模间隙值得确定 (10)
2.3.2 凸、凹模刃口尺寸的确定 (10)
2.3.2.1 确定凸、凹模刃口尺寸的原则 (10)
2.3.2.2 刃口尺寸计算 (11)
2.3.3 工艺力的计算 (13)
2.3.3.1 冲裁力 (13)
2.3.3.2 降低冲裁力的方法 (14)
2.3.3.3 卸料力、推件力和顶件力 (15)
2.3.3.4 弯曲力的计算 (17)
2.3.3.5 总的工艺力 (18)
2.3.4 冲压设备的选择 (18)
2.3.5 模具压力中心的确定 (19)
2.3.6 冲模的闭合高度 (22)
第三章模具设计 (24)
第一节铰链垫片级进模总体结构的草图设计 (24)
第二节模具主要零部件的结构设计 (25)
3.2.1 凸模和凹模的结构设计 (25)
3.2.1.1 凸模和凹模的设计原则 (26)
3.2.1.2 凸模的结构设计 (27)
3.2.1.3 凹模的结构设计 (28)
3.2.2 导料系统的设计 (29)
