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摘要：
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对汽车结构件的工艺性、冲压工艺、工艺方案以及排样设计方案等作了详细分析,并介绍了模具的结构形式、模具关键零件的设计要点以及制造工艺。实现了大型多工位自动冲的精密级进模的设计开发与制造。替代了原多工序单冲模具,生产效率提高3.5倍以上,减小了劳动强度。从优化排样入手,采用特定的冲压工艺保证了产品的面空间位置精度(±0.3mm)、平面上的孔位置精度(±0.3mm)和直角度精度(0.6°以下)。模具制造精度达到0.002mm,提高了模具寿命。实践证明,模具结构合理、可靠,能保证产品质量,对此类零件的级进模设计有参考价值。
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The technological property of automotive structural part, stamping process, technological scheme and layout design of the part were analyzed in detail. The structure of the die, main design points and manufacture process of the key components of the die were introduced. The large multi-position precision progressive die was designed and manufactured. Starting from optimizing layout, the multi-position progressive die replaced the original single-process dies and increased the work efficiency over by 3.5 times and reduced work intensity. The special stamping processes were applied to ensure the location precision of the planes and hole in the planes(±0.3mm), and right angle precision (below 0.6°). Manufacturing precision of mold reached 0.002mm, which improved die life significantly. It is proved that the die structure is reasonable and able to ensure the product quality. The design has reference value to the design of the progressive dies for similar parts.
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基金项目：
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天津市科委科技支撑计划重点项目(08ZCKFGX01900)
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作者简介：
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参考文献：
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[1]张正修,赵向珍.级进模排样设计[J].模具制造,2004,(12):26-29.
[2]张华.组合插片多工位级进模设计[J].武汉职业技术学院学报,2004,(3):84-87.
[3]卢伟毅,潘柏松,邵慧敏,等.链板级进模排样方案的模糊决策及设计[J].模具工业,1998,(1):3-6.
[4]成虹,李学锋.多工位精密级进模排样设计的研究[J].模具工业,2000,(4):14-16.
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