Wheel hub casting die with multiple runners

Abstract

The invention provides a wheel hub casting die with multiple runners. The wheel hub casting die comprises an upper die, a side die, a bottom die, a cooling system, a gas pressurization system and a heating system. The upper die is connected with an upper machine platform plate of a casting machine; the side die is connected with a side die driving device of the casting machine; and the bottom dieis installed on the upper side of a working table of the casting machine. A casting mold cavity of a wheel hub to be cast is formed after the upper die, the side die and the bottom die are closed; anda liquid storage bucket is connected to the center of the upper die, and a metal liquid storage chamber which communicates with the casting mold cavity is formed in the liquid storage bucket. The side die is provided with the runners, and pouring gates are formed in the outer ends of the runners. The cooling system comprises a die cooling system and a runner cooling system, and the gas pressurization system is connected with the liquid storage bucket through a vent pipe and communicates with the metal liquid storage chamber. The wheel hub casting die is provided with the multiple runners, andthe cooling system speeds up the cooling solidification of metal liquid in the runners through the runners, so that the metal liquid is prevented from feeding in the runners during pressurizing and the utilization rate of the metal liquid is improved.

Description

technical field [0001] The invention relates to the technical field of wheel hub casting, in particular to a wheel hub casting mold with multiple runners. Background technique [0002] Wheel hubs are important parts of automobiles. At present, gravity casting and low pressure casting are more common, but gravity casting needs to be provided with risers on the mold. The large machining allowance of castings reduces the production efficiency of the hub, and also reduces the utilization rate of the molten metal, and the melting riser causes a waste of resources; low-pressure casting maintains directional solidification and molten soup fluidity, the mold temperature is high, and the solidification speed is slow. The structure of the gate is relatively coarse, and the mechanical properties of the lower surface are not high. SUMMARY OF THE INVENTION [0003] Therefore, in view of the above-mentioned problems, the object of the present invention is to overcome the deficiencies o...

AI Technical Summary

Problems solved by technology

[0002] The wheel hub is an important part of the car. At present, gravity casting and low pressure casting are more commonly used, but the gravity casting needs to have a riser on the mold, and the wheel hub after casting needs to cut off the excess riser to form the wheel hub product. The large machining allowance of the casting reduces the production efficiency of the wheel hub, reduces the utilization rate of the molten metal, and causes waste of resources by melting the riser; the low-pressure casting maintains directional solidification and melt fluidity, the mold temperature is high, and the solidification speed is slow. The structure of the gate is relatively thick, and the mechanical properties of the lower surface are not high

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