Cold forging mould for high-intensity skirt base type self-locking hexagonal nuts

• Main Authors: XIN XUANRONG, HE CHENGSONG, SHI ZHIXIN, SHI SONGHUA, LIU XINCHENG, GUO YUNHAN
• Format: Patent
• Language: Chinese; English
• Published: 14.08.2013
• Subjects: FORGE FURNACES; FORGING; HAMMERING; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PRESSING METAL; PUNCHING METAL; RIVETING; TRANSPORTING

The utility model discloses a cold forging mould for high-intensity skirt base type self-locking hexagonal nuts. The cold forging mould for the high-intensity skirt base type self-locking hexagonal nuts comprises a mould base (7), a concave mould (4) and a convex mould (3), wherein the concave mould is arranged in the middle of the upper end of the mould base, a middle ring (5) and an outer ring (6) are arranged outside the concave mould (4) in sequence, a convex mould sleeve (2) and a convex mould positioning sleeve (1) are arranged outside the convex mould (3) in sequence, a convex mould cushion block (9) is arranged at the upper end of the convex mould (3), the convex mould (3) and the convex mould sleeve (2) extend into the upper section of an inner cavity of the concave mould (4), the upper end of a workpiece jacking device (8) arranged in the mould base (7) extends into the lower section of the inner cavity of the concave mould (4), and the unoccupied inner cavity of the concave mould (4) forms a blank