Brake casting and die-casting die and die-casting process thereof

Abstract

The invention relates to the technical field of brake casting production, in particular to a brake casting and a die-casting die and a die-casting process thereof. A sinking groove structure is formed in the brake casting, so that the overall thickness of the brake casting tends to be balanced, and local deformation of the casting is prevented; meanwhile, by designing narrow and deep strip-shaped groove bodies distributed in an organ mode, a cavity is more fully exhausted, air holes in a brake product are reduced, and air holes are prevented from being generated in the brake; and the effect of emptying and reducing materials is achieved by designing the strip-shaped groove bodies, and the die-casting forming quality of a brake is improved. An evacuation structure is arranged on the die-casting die, the filling time sequence of the casting is controlled by controlling the glue feeding position and the evacuation mode, the plumpness of the casting is guaranteed, meanwhile, the bubble content in the finished casting is greatly reduced, and the high-quality requirement of the product is met. Through a proper die-casting process, the yield of die-casting molding of the casting is ensured, and the requirement for high-quality production is met.

Description

technical field [0001] The application relates to the technical field of brake unit casting production, in particular to a brake casting and its die-casting mold and die-casting process. Background technique [0002] Automated driving is a key step towards a safe and comfortable personal driving experience in the future. With the emergence and development of autonomous driving technology, braking and deceleration are still the most important elements to ensure the safety of autonomous driving. Once the driver has entrusted full driving responsibility to the vehicle, the electronic braking system (EBS) must be able to perform the braking function even in the rare event of a failure of the main electronic braking system. For these requirements of highly automated driving, a vacuum-assisted compact electronic braking system (MK C1) is used in the existing automated driving technology. In the MK C1 braking system, the brake execution function, brake booster and control system (...

AI Technical Summary

Problems solved by technology

[0003] The casting of the automatic driving electronic brake is a key component in the braking module, and its quality is very important for the braking module of the automatic driving. Due to the requirements of braking safety, the surface of the casting is not allowed to have cracks and surface quality defects. At the same time, due to the complex structure and uneven wall thickness of die-casting parts, it is easy to produce porosity defects during die-casting production

In the existing production, 60% of the products will have pores and cracks inside, which cannot meet the high-quality requirements of castings, resulting in a high defect rate of castings, batch scrapping, and greatly increasing production costs.

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