1、 1 毕业设计（论文）毕业设计（论文） 题 目 快进功能键冲压工艺编制及模具设计 院 （系） 机械与动力工程学院 专业班级 机械设计制造及其自动化(应) 机设 2008 -01 2012 年 6 月 8 日 2 摘摘 要要 冲压是一种先进的金属加工方法，主要靠压力机和模具对板材、带材、管材 和型材等施加外力，使之产生塑性变形或分离，从而获得所需形状和尺寸的工件 的成形加工方法。它所具有生产率高，加工成本低，材料利用率高，产品尺寸精 度稳定等优点。 本次毕业设计的研究对象为快进功能键的冲压工艺编制。 从成形工艺的合理 性出发，首先分析了零件的结构精度特点，在满足冲压加工精度的基础上充分考 虑节约
2、成本， 如果采用级进模生产时， 生产效率大幅提高， 非常适合大批量生产。 又或选用单工序模将极难完成或选用复合模也将较难加工， 达不到生产批量的要 求。由此确定了选用级进模进行加工成形。 加工工艺过程为：冲孔、切边、切边、弯曲、落料。同时经过进一步的分析， 确定了模具的总体结构和冲压工艺力、压力中心、模具工作部分尺寸等相关工艺 计算。在此基础上，绘制完成了相应的模具装配图和各非标件的零件图，并选定 压力机类型及其主要参数。 关键词：关键词：冲压工艺 级进模 冲孔 落料 弯曲 3 Abstract Stamping is a kind of advanced metal processing m
3、ethods, its mainly by the press and die of sheet, strip, pipe and profiles such as external force is applied, so that the plastic deformation or separation, to obtain the required shape and size of the workpiece forming process. It has high productivity, low processing cost, high material utilizatio
4、n ratio, product size precision and stability advantages.Stamping die design take full advantage of the function of characteristics of mechanical presses, stamping, and high production efficiency in the blank under room temperature conditions, and significant economic benefits. On the graduation des
5、ign, the design is in the function keys of the stamping process preparation. From the forming process of rationality set out, first analyzes the parts of the structure precision characteristics, to meet the stamping processing accuracy based on full consideration of cost savings, if the use of progr
6、essive die production, greatly improve production efficiency, is suitable for large batch production. Or the selection of a single process model will be extremely difficult to complete or selection of compound die will be more difficult to process, reach the production requirement. Thus to determine the selection of progressive die forming. Machining process for: punching, cutting edge, edge cutting, bending, blanking. At the same time through further analysis, determine
