Sand mold casting self-locking sand box

Abstract

The invention relates to a sand mold casting self-locking sand box, and aims to solve the problems that I, casting parts have quality problems due to the fact that an upper sand box and a lower sand box are skewed since the positions of the upper sand box and the lower sand box do not correspond accurately after manual butting during the traditional sand mold casting, and II, uncooled metal liquidis deformed at a certain degree and the product quality is influenced due to the fact that a sand mold has a certain heat insulating effect on the metal liquid and sand mold boxes tend to be impactedin subsequent operation before the metal liquid is cooled, and generate displacement or vibration relative to each other when the metal liquid is poured into the sand mold after butting of the uppersand box and the lower sand box. According to the sand box provided by the invention, the upper sand box and the lower sand box are tightly connected together through linked self-locking structures, so that displacement between the upper sand box and the lower sand box is prevented, and the production quality of the casting parts is ensured.

Description

technical field [0001] The invention relates to the technical field of sand casting, in particular to a self-locking sand box for sand casting. Background technique [0002] Sand casting refers to the casting method that produces castings in sand molds. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting. Because the molding materials used in sand casting are cheap and easy to obtain, the casting mold is easy to manufacture, and it can adapt to the single-piece production, batch production and mass production of castings. It has been the basic process in casting production for a long time. The sand box used in sand casting is divided into an upper sand box and a lower sand box, and the two boxes are overlapped during sand casting. [0003] However, the following problems exist in the traditional sand casting sand box casting. First, the traditional sand casting is to manually dock the upper sand box and the lower sand box during casting, but the...

AI Technical Summary

Problems solved by technology

[0003] However, the following problems exist in the traditional sand casting sand box casting. First, the traditional sand casting is to manually dock the upper sand box and the lower sand box during casting, but the positions of the upper sand box and the lower sand box after the docking are not corresponding. Accurate and skewed, causing quality problems in castings; 2. When the molten metal is poured into the sand mold after the upper sand box and the lower sand box are docked, because the sand mold has a certain heat preservation effect on the molten metal, the molten metal is not cooled. When the subsequent operation may touch the sand box, the sand box will be displaced or vibrated with each other, resulting in a certain deformation of the uncooled molten metal, which will affect the product quality

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