连接板冲孔落料复合模的设计与制造毕业设计

摘要

该毕业设计是落料冲孔复合模的设计，冲压模具主要是将板料分离或成形而得到制件的加工方法。因为模具的生产主要是大批量的生产，而且模具可以保证冲压产品的尺寸精度和产品质量，模具的设计与制造主要考虑到模具的设计能否满足工件的工艺性设计，能否加工出合格的零件，以及后来的维修和存放是否合理等。在本次设计中，不仅要考虑要使做出的零件能满足工作要求，还要保证它的使用寿命。

其次设计中还要考虑到它的实际工作环境和必须完成的设计任务，采用倒装复合模，凸凹模的外形和内型孔、凹模型孔采用数控线切割机床加工，在设计中我要考虑到很多关于我所设计模具的知识，包括它的使用场合、外观要求等，从这里可以知道模具设计是一项很复杂的工作，所以在设计要不断的改进直到符合要求。

关键词：落料；工艺性；凸凹模；复合模；

I

Abstract

My graduation project is the blanking piercing die, stamping die mainly to isolated or forming the sheet metal processing methods are workpiece. Because molds are mainly high volume production, and stamping die products can ensure the dimensional accuracy and quality, mold design and manufacture of primary consideration to the mold design can meet the design process the workpiece, can process a qualified parts, and, later, maintenance and storage is reasonable. In this design, not only to consider making the parts to make to meet the job requirements, but also to ensure its service life.

Second, the design should also take into account the actual work environment and must complete the design task, using inverse compound die, the shape of main punch the holes, die hole model used CNC Cutting Machine, I have to take into account in the design a lot on my knowledge of mold design, including its use of occasions, appearance requirements, from here you can know that mold is a very complex task, so to continuous improvement in the design until it meets the requirements.

Keyword: blanking; Technological efficiency;main punch;compound die;

II

目 录

设计任务书.........................................................................................................................1 摘要 ..................................................................................................................................... I ABSTRACT ..................................................................................................................... II 第一章 绪论 ...................................................................................................................... 1 1.1 冲压加工的特点 ..................................................................................................... 1 1.2冲压加工的作用和地位 .......................................................................................... 1 1.3我国模具技术的发展趋势 ...................................................................................... 2 1.4 研究设计的目的和任务 ......................................................................................... 5 1.5 资料及工具准备 ..................................................................................................... 7 第二章 冲压工艺分析及工艺方案的制定 ...................................................................... 9 2.1 工艺分析 ................................................................................................................. 9 2.2 工艺方案的制定 ................................................................................................... 10 第三章 排样设计与计算 ................................................................................................ 11 3.1 排样方法与原则 ................................................................................................... 11 3.2 确定搭边值 ........................................................................................................... 11 3.3 送料步距与条料宽度的计算 ............................................................................... 11 3.4 材料利用率的计算 ............................................................................................... 12 3.5板料的确定 ............................................................................................................ 13 第四章 冲裁力计算 ........................................................................................................ 14 4.1落料力、冲孔力、卸料力、推件力的计算 ........................................................ 14 4.2压力机的选择 ........................................................................................................ 15 第五章 凸凹模的设计 .................................................................................................... 18 5.1 尺寸计算原则 ....................................................................................................... 18 5.2凸、凹模刃口尺寸计算 ........................................................................................ 18 5.3凸模、凹模、凸凹模的结构设计 ........................................................................ 20 第六章 模具主要零部件设计 ........................................................................................ 23 6.1定位方式的选择 .................................................................................................... 23

6.2卸料﹑出件方式的选择 ........................................................................................ 23 6.3模架的选择 ............................................................................................................ 24 第七章 绘制模具总装图及零件图 ................................................................................ 25 7.1装配图绘制 ............................................................................................................ 25 7.2模具零件图的绘制 ................................................................................................ 26 第八章 模具零件加工工艺 ............................................................................................ 27 8.1 直径15冲孔凸模加工工艺过程 ......................................................................... 27 8.2凸凹模加工工艺过程 ............................................................................................ 28 8.3 R4中心距为4MM冲孔凸模加工工艺过程 ......................................................... 29 8.4 凹模板加工工艺过程 ........................................................................................... 30 8.5凸模固定板加工工艺过程 .................................................................................... 31 8.6凸凹模固定板加工工艺过程 ................................................................................ 33 8.7上垫板加工工艺过程 ............................................................................................ 34 8.8下垫板加工工艺过程 ............................................................................................ 35 8.9卸料板加工工艺过程 ............................................................................................ 36 第九章 总结及致谢 ........................................................................................................ 37 参考文献 .......................................................................................................................... 37