Cold forming multi-station die of hollow pull riveting rivet

The utility model discloses a cold forming multi-station die of a hollow pull riveting rivet. The cold forming multi-station die is composed of a shaping die, a pre-forming die, a floating type composite extrusion die, a floating type finishing die and a punching die. The rivet is formed in the seco...

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Bibliographische Detailangaben
Hauptverfasser: YAO JIFU, LUO YONG, JIN QIU, HE LIWU, CHENG WEI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model discloses a cold forming multi-station die of a hollow pull riveting rivet. The cold forming multi-station die is composed of a shaping die, a pre-forming die, a floating type composite extrusion die, a floating type finishing die and a punching die. The rivet is formed in the secondary floating process, the requirements for the shapes and the sizes of the rivet head and the rivet rod are met, the precision reaches 0.05 mm, the production efficiency can reach 100120 pieces/min, efficient production is achieved, and the production cost is reduced. 本实用新型公开了一种空心拉铆铆钉的冷成形多工位模具,由整形模、预成形模、浮动式复合挤压模、浮动式精整模及冲孔模组成;铆钉在二次浮动中成型,保证了钉头、钉杆的形状和尺寸的要求,精度达到0.05mm,生产效率可达100-120件/分,实现高效生产,降低了生产成本。