1、 I 壳体冲压工艺及模具设计 摘 要 本次设计的零件为凸缘盒形件拉深件。壳体采用的材料 Q235A 号钢及 0.5mm 厚度保证了足够的强度和刚度。该零件外形基本对称,材料是适于制造高变形性 能,深拉延产品及形状较复杂产品的钢材。 首先对零件进行了工艺性分析,有拉深、冲孔、切边等一系列工序。而且生 产批量大,各工位有相互的尺寸关系,经过计算分析采用一次拉伸与冲孔切边的 工艺生产方案,可提高材料的利用率。经过计算分析完成该模具的主要设计计算, 凸模、凹模工作部分的设计计算,还有工位布置和主要零部件的结构设计,选择 合适的模具材料。拉伸又称拉延、压延或引伸。它是利用拉伸模具在压力机的压 力作用下,
2、将预先剪裁或冲裁成一定形状的平板毛坯,拉制成立体空心件的加工 方法。拉深成形是板材立体成形的最重要方法,以拉伸成形为主体的冲压件非常 多,在很多工业及生活用品中都又拉伸成形的制品,是冲模发展方向之一。在模 具设计前必须对工件进行全面分析,然后合理确定工件的冲压成形工艺方案,正 确设计模具结构和模具零件的加工工艺规程,以获得最佳的技术经济效益。 关 键 词:拉伸模,拉深,切边,冲孔,设计。 II Shell the Stamping Process and Mold Design ABSTRACT The design of box-shaped flange parts for deep dr
3、awing parts. Shell material used No. Q235A steel and 0.5mm thickness to ensure sufficient strength and stiffness. This deformation of material is suitable for manufacturing high-performance and deep-drawing products and more complex products shape. We carried out the parts of analysis, there is deep
4、 drawing, punching, cutting-edge series of processes. And production volume, and the works are of the size of the mutual relationship between the calculated and analyzed through the use of a stretching and punching the production of cutting-edge technology options to improve the utilization of materials. After completion of the analysis of the mold design,convex and concave die part of the design work,there are the major components of layout and design of the structure, choose a suitable mold