工件图
带有自动挡料装置的垫板级进模设计
摘要
冷冲压工艺是现代工业生产中重要的工艺装备之一，不仅仅在工业生产制造中有所应用，而且在日常生活的方方面面也有广泛应用。近年来，模具工业已摆脱了从属地位而发展成为独立的行业。我国的模具工业也有突飞猛进的发展，模具可以进行快速大批量生产，能制造出比较复杂的零件，极大的提高了模具制造的精度、质量和生产率，节约了零件加工成本，容易实现自动化的流水线生产。
设计一套带有自动挡料装置的冲孔落料级进模。垫板在机器的各部分之间起着连接时稳定、密封等作用。垫板的种类繁多，材质以及大小薄厚的不同，所起的作用也是不同的。按材质分类，可分为非金属、半金属、和金属垫板三种。而本次设计的垫板主要用在法兰连接的螺栓中的，作用是增大螺栓或螺母与零件表面的接触面积，防止零件表面被磨坏，配合弹簧垫圈，起到防松作用。此次垫板的模具设计采用的是级进摸，在生产应用中主要是冲孔和落料工序，其中包括冲压工艺分析，并确定模具，凸模、凹模、固定板、卸料装置等零部件的设计和制造，以及压力机的选择。
该设计能够使我对于学校所学的知识有一个全面的复习和进一步的认识，将专业课知识系统的结合在一起，使我提高自行设计这一方面的能力。
关键字：挡料装置；冲孔落料；级进模；冲压工艺
ABSTRACT
Cold stamping is one of the most important technological equipment in modern industrial production. It is not only used in industrial production, but alsowidely used in every aspect of daily life. In recentyears, the mold industry has developed from a subordinate position to an independent industry. The mold industry in our country also has a rapid development. The mold can make rapid mass production, can produce more complex parts, greatly improve the precision, quality and productivity of the mold manufacturing, save the cost of parts processing, and easy to realize automatic production line.
A set of punching blanking progressive diewith automatic stopper is designed. The backing plate is stable and sealedwhen it is connected to all parts of the machine. There are many kinds of backing plates, and the different materials and sizes are different. According to material classification, it can be divided into three kinds: non-metal, semi metal and metal backing plate. The design of the cushion is mainly used in the flange of the bolt, the function is to increase the contact area of the bolt or nut and the surface of the parts, to prevent the surface of the parts to beworn out,with the springwasher, playing the anti loosening effect. The design of the die for this plate is a progressive touch. In the production application, it is mainly punching and blanking process, including the stamping process analysis, and the design and manufacture of die, punch, die, fixed plate, unloading device and other parts, aswell as the selection of press.
The graduation design can make me have a comprehensive review and further understanding of the knowledge learned by the school, and combine the knowledge system of the professional course together, so that I can improve the ability to design this aspect by myself.
Keywords: blocking device; blanking blanking; progressive die; stamping process
目录
摘要I
ABSTRACT II
前言1
1、绪论2
1.1.冲压技术理论概述2
1.1.1.全面推广CAD/CAM/CAE技术2
1.1.2.高速铣削加工2
1.1.3.模具扫描及数字化系统2
2、零件工艺性分析及确定工艺结构方案3
2.1.产品零件图3
2.2.零件工艺性分析3
2.2.1.结构与尺寸3
2.2.2.精度3
2.2.材料4
2.3.确定冲裁工艺方案4
3、工艺计算6
3.1.排样设计与计算6
3.1.1.排样方法6
3.1.2.搭边值的确定6
3.1.3.送料步距与条料宽度计算7
3.1.4.材料利用率及排样草图7
3.2.冲裁力、压力机的选取及压力中心计算8
3.2.1.冲裁力的计算8
3.2.2.卸料力、推件力和顶件力8
3.2.3.压力机所需总冲压力的计算9
3.3.压力中心的计算9
3.3.1.压力中心的计算9
3.4.凸、凹模刃口尺寸计算10
3.5.卸料结构设计、弹性元件的选用和计算13
3.5.1.卸料结构设计13
3.5.2.凸模与固定板的选用和计算13
4、连续模的主要零件设计14
4.1.凸、凹模结构设计14
4.1.1.凹模14
4.1.2.凸模15
4.2.压力机的选用与校核17
4.2.1.压力机的选用17
4.3.模架的选用17
5、模具的动作原理19
6、模具的总装配20
总结21
参考文献22
装配图
下模板
中间孔冲头
凹模
初始挡料销
导正销
垫板级进模具汇总13张图纸
刚性卸料板
落料凸模
模柄
上垫板
上模座
凸模固定板
压力机选择，模架选择
摘要部分
字数统计
设计目录
所包含文件
