Casting deformation preventing device

Abstract

The invention relates to a casting deformation preventing device which comprises a cast-in pipe and control assemblies. An expansion space is formed in the side wall, close to the insert casting pipe, of a sand mold, each end, close to the cast-in pipe, of the sand mold is at least provided with a group of containing cavities and a molten metal channel, and the corresponding containing cavities are communicated with a mold cavity through corresponding molten metal channels. The control assemblies are arranged on the cast-in pipe, and the control assemblies are located in the containing cavities. One part of each control assembly is rigidly connected with the cast-in pipe, and the other part of the control assembly elastically abuts against the inner wall of one side of the corresponding containing cavity. The casting deformation preventing device device can automatically, directionally and quantitatively control the expansion movement of the cast-in pipe in the cast-in casting, is easy to operate, and ensures that the cast-in pipe is not prone to deformation in the cast-in process of the casting, so that the deformation of the casting is avoided; and the size accuracy is high, and the size and use requirements of casting are guaranteed.

Description

technical field [0001] The invention relates to a casting anti-deformation device, in particular to an L-shaped anti-deformation inlaid cast pipe. Background technique [0002] For some castings, there is an L-shaped oil pipe in its structure. This oil pipe is usually in the form of insert casting during casting. After the casting is completed, it needs to be drilled and assembled to cool the entire body with cooling oil. Since the cast-in-cast pipe is heated and expanded during molten iron pouring, the position of the cast-in-cast pipe often shifts, bends and deforms, and is poorly fused, resulting in quality problems such as partial perforation or oil leakage in the final part. [0003] In the prior art, in order to ensure the accuracy of the oil pipe and prevent the position of the oil pipe from shifting, the cast-in-cast pipe usually reserves a cavity at both ends of the cast-in-cast pipe after it is assembled into the sand mold to prevent the pipe from being deformed du...

AI Technical Summary

Problems solved by technology

[0004] Based on this, the present invention overcomes the deficiencies of position shifting and bending deformation of the casting structure in the prior art during the casting process, and provides an anti-casting deformation device, which uses the force of the spring on the casting tube to The expansion and deformation of the cast-in tube can all be directed towards the cavity at both ends of the cast-in tube, which solves the defects of position deviation and bending deformation in the casting process

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