Three-dimensional parallel-connected vibrating casting machine

Abstract

The invention relates to a three-dimensional parallel-connected vibrating casting machine relating to the field of vibrating casting equipment. The three-dimensional parallel-connected vibrating casting machine comprises a sand box, a vibrating platform, a longitudinal vibrating chain, a horizontal vibrating chain, a vibrating motor, hanging brackets, springs, a main bracket and a base, wherein the sand box is fixed on the upper installation surface of the vibrating platform through a bolt; the vibrating motor is fixed on the lower installation surface of the vibrating platform; the upper ends of the four hanging brackets are connected with the vibrating platform through bolts, and the lower ends of the four hanging brackets are respectively hung on the main bracket through the springs; the main bracket is fixed on the base; and the upper ends of the longitudinal vibrating chain and the horizontal vibrating chain are connected with the vibrating platform, and the lower ends of the longitudinal vibrating chain and the horizontal vibrating chain are both fixed on the base. The three-dimensional parallel-connected vibrating casting machine provided by the invention has a simple structure and can be used for realizing the vibration in directions X, Y and Z in such a way that the longitudinal vibrating chain and the horizontal vibrating chain are not mutually interfered, and enabling the vibrating platform to obtain different vibration outputs by regulating the power parameters of the vibrating motor and drive sources of the longitudinal vibrating chain and the horizontal vibrating chain, and thus, the casting mould inside the sand box can obtain appropriate vibration excitation so as to improve the quality of a cast.

Description

Technical field: [0001] The invention relates to the field of vibration casting equipment, in particular to a three-dimensional parallel vibration casting machine, which can realize the spatial three-dimensional vibration of a mold. Background technique: [0002] During the pouring process of existing metal castings, because the sand box or the mold is in a static state, the bubbles in the metal liquid are difficult to overflow, which is not conducive to the floating of slag inclusions and the flow of the metal liquid during the solidification process, especially for medium and large steel castings Due to the large difference in wall thickness of the overall structure of castings, conventional processes are difficult to ensure overall balanced cooling, and local defects such as cracks, shrinkage porosity, shrinkage cavities, slag inclusions, and coarse grains are prone to occur, which seriously affects the improvement of casting product quality. Especially for large-scale st...

AI Technical Summary

Problems solved by technology

[0002] During the pouring process of existing metal castings, because the sand box or the mold is in a static state, the bubbles in the metal liquid are difficult to overflow, which is not conducive to the floating of slag inclusions and the flow of the metal liquid during the solidification process, especially for medium and large steel castings Due to the large difference in wall thickness of the overall structure of castings, conventional processes are difficult to ensure overall balanced cooling, and local defects such as cracks, shrinkage porosity, shrinkage cavities, slag inclusions, and coarse grains are prone to occur, which seriously affects the improvement of casting product quality.

Especially for large steel castings, after non-destructive testing, the casting defects are particularly prominent, the workload of repair welding and repairing is heavy, the scrap rate is high, and the production cost is increased.

In addition, because the gating riser system in the prior art relies on the metal weight of the riser as the system pressure, a large amount of metal is required, so the entire casting cost is high

[0003] At present, the existing patents have also proposed some solutions. For example, the patent application number 200720049505.2 proposes an implementation scheme of hydraulic vibration casting equipment, and the patent application number 201020117378.7 discloses a mechanical vibration generated by the centrifugal motion of the semicircular shaft. Vibration casting machines, etc., but the vibration devices proposed in these patents can only generate vibration with 1-2 degrees of freedom, and the hydraulic vibration table is expensive and inconvenient to maintain

When the traditional vibration excitation device is used, the casting mold is supported by a compression spring or a spring plate. Part of the freedom of the casting mold is restricted, and the degree of freedom of vibration is small. It only depends on increasing the vibration amplitude and intensity (the vibration intensity is too large and may damage the sand mold) The ability to improve the vibration effect is limited, which can no longer meet the actual needs of production

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