Machining process of hexagon nut column with groove

• Main Author: ZHUO HAILONG
• Format: Patent
• Language: Chinese; English
• Published: 28.07.2017
• Subjects: MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING

The invention discloses a machining process of a hexagon nut column with a groove. The machining process comprises the following steps that (1) all molds are mounted on corresponding stations of a cold header, and the center positions of all stamping mold stamping rods and bottom molds are adjusted and aligned; (2) a wire rod wire penetrates into the cold header through a wire mold, the material length required by a product is adjusted, and a cutting knife carries out cutoff to obtain a blank; (3) shaping is carried out; (4) hole extrusion is carried out; (5) a head is formed; (6) a hexagon is formed; (7) a semi-finished product obtained after forging is machined through a threading machine to obtain the groove; and (8) the hexagon nut column obtained after groove rubbing is subjected to cutting type tapping through a back-and-forth tapping machine. According to the machining process, the manner that fast groove rubbing cooperates with rotary extrusion is adopted, the forged hexagon nut column is erected on t