This paper analyses the drawing technology of canopy, gives outthe gradual forming methods for inner — concave round part, designs rational die structure, and introduces work principle of the die, the design and parameters of the main parts. The result shows that the forming of these parts can be finished in large quantities.%分析了灯座的拉深工艺,提出了凹形球环部分的逐段成形方法,设计了合理的模具结构,介绍了模具的工作原理、主要工作零件的设计和参数。经使用证明,可以实现此类零件的大批量生产。
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