锻压技术

磁轭多工位级进模设计

英文标题：Design of multi-position progressive die for magnetic yoke

作者：崔柏伟邓卫国

单位：常州机电职业技术学院

关键词：磁轭多工位级进模侧刃定距

分类号：TG76

出版年,卷(期):页码：2013,38(6):93-96

摘要：

磁轭零件的制造精度要求较高，在采用多工位级进模冲制时，必须保证送料的精度要求。为了避免毛刺对送进和冲制的不良影响，需在模具结构上采取必要的措施。由于材料厚度较大，切断时会产生较大的反弹力，因此需要解决冲件切断时的回跳问题。本文采用侧刃定距、切除余料的多工位级进模方案，模具结构上采用硬质合金镶件对条料导向、卸料螺栓套管和抬料钉代替部分浮顶器、安装压料顶杆等技术，解决了条料的精确定位、向下翻孔影响送进和冲件切断时飞出等问题。经批量生产验证表明，该模具结构设计合理，可满足大批量生产厚板、高精度零件的要求，对同类多工位级进模设计具有一定的借鉴意义。

Because the manufacturing accuracy of yoke parts is very high, so the accuracy requirements of feeding must be guaranteed when the multi-for-bit-level progressive die is applied. In order to avoid the adverse effects of the glitch to feeding and punching, the necessary measures must be taken in the mold structure.Due to the large thickness of the material, the cut will have a greater rebound, so the bounce when stamping is cut off needed to be resolved. The multi-position progressive die program which using the fixed pitch through the side of the blade and the removed excess material was adopted, e.g. the technologies of double carbide insert block bearing on strip, lift material nails instead of the floating roof, discharge screws casing, installing the binder mandrel were used, which solved a number of issues, such as the strip precise positioning, hole turned down affecting the feeding condition and stamping worpiece flying out when the tamping was cut off. The mass production proves that the mold structure design is reasonable, which can meet the requirements of the mass production of thick and high-precision parts, while, as for the other similar multi-position progressive die designs, there is a certain practical significance.

基金项目：

2012年度常州市科技计划项目的部分成果（CF20120005）

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