Drilling-free steering knuckle casting mold

A drilling-free steering knuckle casting mold is used for casting a casting blank corresponding to a casting product, the periphery of a center hole of the casting product is a bottom wall with a preset thickness, the steering knuckle casting mold comprises a top mold and a bottom mold which are used for forming a mold cavity in a surrounding mode, and the bottom mold is provided with a pouring gate and a pouring gate. A sprue spreader used for forming a sprue spreader conical groove in a casting blank is arranged at the position, corresponding to the center hole, of the top die, the sprue spreader conical groove comprises a sprue spreader conical side face part and a sprue spreader conical bottom face part, and the radius of the sprue spreader conical side face part is at least smaller than that of the center hole by preset machining allowance. The flow dividing conical bottom surface part is located below a to-be-sawn plane position which is lower than the bottom surface of the bottom wall by a preset sawin