1、 I 摘摘 要要 本文介绍了某型号轻卡车前门内板的冲压模的设计过程，分析了汽车 覆盖件及其冲压模的特点及要求。 该零件的数学模型为由曲面构成的非参数化特征，故首先对该零件的 Solidworks 数学模型进行了分析， 由于零件数学模型是以整个轻型卡车为基 准设计的，为了得到合格的零件产品，必须先进行生产方案的分析与确定， 其次是拉深方向的确定， 然后进行工艺补充， 工艺计算， 并利用DYNAFORM 进行数值模拟分析，最后进行了拉深件的设计。 拉深件模具的设计包括内外工艺补充面、压料面、凸模、凹模、卸料 板的设计等。最后以拉深件为基础进行了两套冲压模具的三维设计并进行 了装配。两套模具分别为拉
2、延模和修边模，并由三维模具再进行模具的二 维设计。 关键词关键词：汽车覆盖件；工艺补充；有限元模拟；模具设计。 II Abstract This article introduced the process of stamping die design of a front door pannel of model light trucks . It has analyzed the the characteristic and the request of automobile cover and its stamping die. Has carried on the analysis t
3、o the components Solidworks mathematical model, this components mathematical model for the non-parameter characteristic which constitutes by the piece body. Because the components mathematical model is take the entire automobile as the datum design, in order to obtain the qualified components produc
4、t, must carry on stamping the direction determination firstly, then use DYNAFORM process added and carry on the numerical simulation analysis, finally has carried on stretch component a design. Stretch component a design supplemented including the craft that, presses the material both inside and out
5、side surface, punch,die etc. Has carried on for the foundation two sets of stamping die molds three dimensional designs that carried on the assembly ,and the two sets of stamping die molds consist of drawing die and trimming die, finally entered the good mold two-dimensional design again by the thre
6、e dimensional mold. Keywords: The automobile cover; the craft added; Numerical simulation; Mold design. III 目录目录 摘摘 要要 I I ABSTRACTABSTRACT IIII 目录目录 IIIIII 1. 1. 绪绪 论论 1 1 1.1 选题意义 . 1 1.2 汽车覆盖件简介 . 1 1.2.1 覆盖件应满足的条件 . 2 1.2.2 覆盖件的工艺分类 . 3 1.2.3 汽车覆盖件模具的发展趋势 . 3 1.3 本课题主要研究方向 . 5 2.2.冲压件的工艺分析冲压件的工艺分析 7 7 2.1 结构及工艺分析 . 7 2.2 工艺计算 . 7 2.2.1 拉延模的拉深力的计算： . 7 2.2.2 拉延模的压边力的计算 . 8 2.2.3 修边模冲裁力的计算 . 8 2.2.4 修边模卸料力的计算 . 9 2.2.5 顶杆孔、螺孔等尺寸的计算 . 9 3.3.设计方案设计方案 1010 IV 3.1 方案的提出 10 3.2 方案的论证与选择 10 4 4
