Commercial vehicle hub primary forging die

The utility model provides a primary forging die for a hub of a commercial vehicle. The primary forging die for the hub of the commercial vehicle comprises a first primary forging template, a second primary forging template, a primary forging lower die core, a primary forging upper die core and an ejector, the second primary forging template is positioned above the first primary forging template; the ejector penetrates through the second primary forging die plate and the primary forging upper die core and has the freedom degree of moving up and down. A cavity is formed among the primary forging lower die core, the primary forging upper die core and the ejector, and the lower outline of the cavity comprises a base plane formed in the middle of the primary forging lower die core and a concave-convex part connected with the base plane. The upper outline of the cavity comprises a flange face defined by the connecting position of the primary forging lower die core and the primary forging upper die core, a connecti