Die-casting die for manufacturing damping tower and vacuum die-casting method of damping tower

Abstract

The invention discloses a vacuum die-casting die for manufacturing a damping tower and a vacuum die-casting method of the damping tower. The vacuum die-casting die comprises a fixed die, a movable die, an ejection system arranged in the movable die and a cooling system used for cooling the die and a casting. The ejection system can eject the casting out of a die cavity after die opening. In the die assembly state, molten metal is added into a pressure chamber from a feeding port of a material cylinder, a punch moves and blocks the feeding port, a vacuumizing system is started, vacuumizing is started, and when the punch moves to the high-speed switching position, the vacuumizing system is closed. The punch continues to move at a high speed, the molten metal enters two transverse main runners through a flow dividing cone, then enters the die cavity through a transition transverse runner and an inner sprue which communicate with the two transverse main runners, and the die cavity is rapidly filled with the molten metal. After the molten metal in the die cavity is cooled to the set time in a pressure maintaining manner, the casting is formed.

Description

technical field [0001] The invention relates to a die-casting process for auto parts, in particular to a vacuum die-casting method for making a vacuum die-casting mold for a shock-absorbing tower and a shock-absorbing tower. Background technique [0002] The shock absorber, also known as the shock absorber bracket, is the key bearing part on the car body. The shock absorber of the suspension system and the shock absorber spring are installed on the shock absorber. The general structure is relatively complex, which plays a vital role in the comfort and handling stability of the car. In addition, with the requirement of lightweight automobiles, the use of aluminum alloy vacuum die-casting shock towers has become the main production method for lightweight shock towers. For example, the Chinese patent with the publication number 205927060 discloses a three-plate vacuum die-casting mold for the shock absorber of the vehicle body structure. A circular through hole is provided pr...

AI Technical Summary

Problems solved by technology

[0003] The structural design of the vacuum die-casting mold for the above-mentioned shock absorber is relatively complicated, and two partings are required, and the runner and the parts are not on the same parting surface, and the casting and the runner are ejected separately.

At the same time, the design of the fixed mold structure is relatively complicated. There are flow channel inserts on the bottom plate of the fixed mold, the back of the fixed mold cover plate, and the middle plate. The setting of the gating system is complicated. There are two paths, entering the other two circular runners, corresponding to the middle part of the moving mold core, flowing from the middle to the surroundings to the cavity

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