Pressure kettle structure of differential pressure casting machine

Abstract

The invention discloses a pressure kettle structure of a differential pressure casting machine. The pressure kettle structure of the differential pressure casting machine is characterized in that thepressure kettle structure comprises a pressure kettle and a die, wherein the die is a split-type die and includes an upper die body, a lower die body and a plurality of side dies; likewise, the pressure kettle is of a split-type structure and includes an upper pressure kettle body and a plurality of lower pressure kettle side blocks; the upper pressure kettle body is connected with the upper die body, the lower pressure kettle side blocks are connected with the side dies correspondingly, an upper die adjusting device capable of adjusting the distance between the upper die and the upper pressure kettle is arranged between the upper pressure kettle and the upper die, and side die adjusting devices capable of adjusting the distances between the side dies and the lower pressure kettle side blocks are also arranged between the side dies and the corresponding lower pressure kettle side blocks; the upper pressure kettle is externally connected with a drive mechanism driving the upper pressurekettle to ascend and descend; the lower pressure kettle side blocks are externally connected with a drive mechanism driving the lower pressure kettle side blocks to advance or retreat; and the mannerthat the split-type pressure kettle and the die synchronously move is adopted, the working procedure is reduced, and the adaptation of the die for various shapes of castings is improved.

Description

technical field [0001] The invention belongs to the technical field of casting equipment, and in particular relates to a pressure vessel structure of a differential pressure casting machine and a differential pressure casting machine with the structure. Background technique [0002] The differential pressure casting method is a new casting method developed in the early 1960s, which has the advantages of both low pressure casting and pressure kettle casting. It has very obvious advantages in the production of large, complex, thin-walled, precise, high-quality high-strength light alloy castings. Differential pressure casting is based on low-pressure casting equipment. A sealed cover is added to the casting mold, and the cover is filled with compressed gas, so that the casting mold is under a certain pressure of the gas. When the molten metal is filled, the pressure of the gas in the holding furnace is greater than the pressure of the gas in the mold, and the filling, pressure...

AI Technical Summary

Problems solved by technology

The existing differential pressure casting autoclave structure is mostly used in sand mold or investment casting that does not require opening and closing machinery, while the metal mold casting mold is more complicated. Taking wheel casting as an example, the existing molds suitable for low pressure casting include the above Mold, lower mold, and four side molds, if they are used in differential pressure casting, they need to be closed first, and after casting, the mold is opened to eject the casting. Hold the entire mold, raise the autoclave after casting, and then open the mold to eject the casting, which makes the process complicated and reduces production efficiency

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