订书机针槽冲压模设计

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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
本科毕业设计（论文）通过答辩
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, it's 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
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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 -
4.3.2 工件的排样原则·························································································- 8 -
4.3.3 载体设计·····································································································- 8 -
4.3.4 搭边值的确定·····························································································- 9 -
4.3.5 排样的步骤·································································································- 9 -第五章冲压力的计算和冲压设备的确定·······················································- 13 -
5.1 冲裁力的计算···································································································- 13 -
5.2 弯曲力的计算···································································································- 13 -
5.3 压凸包力的计算·······························································································- 14 -
5.4 卸料力、推料力、顶件力的计算···································································- 15 -
5.5 冲压设备的选取·······························································································- 16 -
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本科毕业设计（论文）通过答辩
5.5.1 设备类型的选择·······················································································- 16 -
5.5.2 设备规格的选择·······················································································- 16 -
5.6 压力中心的确定·······························································································- 17 -
5.6.1 各工位压力中心的计算。

·······································································- 17 -
5.6.2 总压力中心的计算。

···············································································- 19 -第六章冲裁间隙刃口尺寸的确定·····································································- 20 -
6.1 凸、凹模间隙的确定·······················································································- 20 -
6.2 凸、凹模刃口尺寸的计算···············································································- 20 -第七章模具总体结构和主要零件的设计·······················································- 22 -
7.1 模具总体结构的确定·······················································································- 22 -
7.2 模具材料的选取·······························································································- 23 -
7.3 工作零件的设计·······························································································- 23 -
7.3.1A、B、E、G凸模的设计 ·······································································- 23 -
7.3.2 冲孔A、B、E、G凹模的设计 ······························································- 25 -
7.3.3 冲裁外形C区、D区及F区的凸模凹模的设计 ··································- 27 -
7.3.4 切断凸、凹模的设计···············································································- 28 -
7.3.5 弯曲凸模和凹模的设计···········································································- 28 -
7.3.6 压凸包凸、凹模的设计···········································································- 30 -
7.4 带料定位部分的设计·······················································································- 31 -
7.4.1 侧刃结构的设计·······················································································- 31 -
7.4.2导正销的设计···························································································- 32 -
7.4.3 托料销的设计···························································································- 33 -第八章模板、模座的设计···················································································- 34 -
8.1 模板、模座厚度的确定···················································································- 34 -
8.2 模板、模座几何尺寸的设计···········································································- 34 -
8.3 模具工作行程···································································································- 34 -
8.4 模具闭合高度···································································································- 35 -第九章导向和限位部分的设计 ·········································································- 36 -
9.1 外导柱的设计···································································································- 36 -
9.2 内导柱的设计···································································································- 36 -第十章让位孔的设计 ····························································································- 37 -
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