Casting mold of aluminum hub and casting method thereof

Abstract

The invention discloses a casting mold of an aluminum hub. An upper mold is fixedly connected with an upper mold core and an upper connecting plate, a core mold ring is formed by a plurality of sliding block core modules distributed in the circumferential direction of a middle core mold, and the sliding block core modules are detachably connected with the middle core mold. A push-out ring is fixedly connected with an ejector plate. A lower mold plate is fixedly connected to a bottom plate, and a lower mold, a lower mold insert assembly and a core mold assembly are fixedly connected to the lower mold plate. A pouring gate assembly is located above the upper mold core and is further provided with a pouring gate and a pouring channel. The upper mold, the upper mold core, the core mold assembly, the push-out ring, the lower mold and the lower mold insert assembly jointly define a cavity of the aluminum hub, and the pouring gate and the pouring channel are communicated with the cavity of the aluminum hub. The mold can directly obtain a hub oil storage cavity by means of casting, and the overall cost is reduced. According to the aluminum hub casting method, gravity and medium-pressure air energy are adopted for casting, molten aluminum is poured from the upper portion of the mold, the mold filling pressure is high, a certain feeding effect can be achieved, the hub is good in compactness, and the product is high in strength and good in performance.

Description

technical field [0001] The invention belongs to the technical field of wheel hubs, and in particular relates to a casting mold of an aluminum wheel hub and a method for casting an aluminum wheel hub. Background technique [0002] With the rapid growth of China's economy, the rapid development of high-end logistics represented by e-commerce, hazardous chemicals, cold chain, etc., the lightweight requirements for vehicles are more prominent; take a tractor as an example (about 20 10,000 kilometers), every 1Kg of weight loss will earn nearly 200 yuan in freight costs every year; therefore, commercial vehicle users and OEMs have an imminent demand for lightweight. [0003] Compared with ductile iron, the material of traditional wheels of commercial vehicles, the density of aluminum is about 1 / 3 of that of ductile iron, which is easy to ensure the dynamic balance of the product, and the anti-shake effect of the vehicle is good; moreover, the product is light in weight, not easy t...

AI Technical Summary

Problems solved by technology

The mold used to manufacture traditional wheels is not suitable for casting aluminum alloy wheels. Therefore, it is necessary to invent a casting mold for aluminum wheels to adapt to the progress of lightweight development of wheels

[0005] In addition, the existing aluminum alloy wheels usually adopt low-pressure, sand casting method, the forming pressure of the wheel is low, and problems such as shrinkage and sand sticking are prone to occur, and the position of the oil storage chamber of the wheel hub cannot be obtained directly by casting. The hub oil cavity can only be obtained by machining the position of the blank oil storage cavity, but the hub blank needs to be subjected to solution treatment and aging treatment before machining the hub oil cavity, because the wall thickness of the unprocessed blank oil storage cavity is relatively thick, which may cause solid Insufficient solution treatment and aging treatment lead to coarse grains, resulting in poor product performance and waste of materials and tools

Images