订书机针槽模具设计.doc

摘 要 在我们的日常生活中，冲压件随处可见，如不锈钢脸盆，USB接口，指甲刀，夹子等，它与我们生活息息相关，它们都是通过冲压模具制造而成。随着社会的发展，冲压件的形状变得越来越复杂，越来越小，对质量要求也越来越高，一些按传统冲压工艺要多副模具分序冲制的中小型复杂零件，更多地采用多工位级进模成形。级进模具有成型质量好，生产效率高等特点，在冲压成型中占有很重要的低位。本毕设设计是针对日常办公用品的Mini订书机上的针槽来设计其模具，由于该零件较小，包含的成型工序较多，材料厚度较薄，选择级进模来成型该零件。在进行模具设计之前先对该零件进行工艺分析，将工件展开，进行排样设计，排样设计好了之后确定整个模具的结构，对每个工位上的凸模凹模进行具体设计，再进行必要的校核，再对其它零件进行设计，最后再设计零件的加工工艺。按照这个步骤，一般计算一边绘图，逐步完成本次设计。 关键字：级进模；排样；冲裁；弯曲；凸、凹模 Abstract In our daily life, stamping parts can be seen everywhere, such as metal washbasin, USB interface, nail clippers, clamps, etc, it with our life is closely linked, they are all manufactured by stamping mould. With the development of society, the shape of the stamping parts is becoming more and more complex, more and more small, the quality requirements are also more and more high, some in the traditional stamping process to mold order punching in small complex parts, more of the multi-position progressive die forming. There are molded into a mold level of good quality, high production efficiency, played an important role in stamping forming. This graduation design is to design the stamping mould of Mini stapler nail groove, as the part is small, material is thinner, its suitable to select the progressive die to forming the parts. In the mould design, at first do the layout design, and then determine the structure of the mould , on each station on the punch of concave modules specific design, and the necessary check, to other parts design, and finally to design machining process of the parts. According to this measure, the general calculation of side drawing, and gradually completed the design. Keywords: progressive die; layout; blanking; bending; cavity and core目 录 第一章 绪论 1 1.1 级进模的含义 1 1.2 级进模的特点 1 1.3 级进模的功能 2 1.4 级进模的构成 2 第二章 冲压件成型工艺分析 3 第三章 冲压工艺方案的选择 4 3.1 单工序模 4 3.2 复合模 4 3.2 级进模 4 第四章 工件的排样 5 4.1 工件的展开 5 4.1.1 展开原理 5 4.1.2 展开过程 6 4.2 工件成型工艺设计及工位确定 7 4.2.1 成型工艺方案设计 7 4.2.2 确定各工位的内容 7 4.3 工件的排样 7 4.3.1 工件的排样方法 8 4.