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Shape correcting device

A shape correction and square technology, applied in the field of machining, can solve the problems of out of tolerance castings and scrapped castings, and achieve the effect of improving the pass rate and solving the problem of workpiece size.

Pending Publication Date: 2021-07-13
SHANXI FENXI HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Especially in the process of processing, the deformation of the casting due to the release of stress leads to the size of the casting being out of tolerance, resulting in the scrapping of the casting

Method used

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  • Shape correcting device

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] In the prior art, it involves a cylindrical casting with a diameter of 500-600mm and a height of more than 1000mm. The structural characteristics of the casting are: there are vertical ribs parallel to the axial direction on the casting and the flanges on both sides are connected as a whole to form a casting. skeleton. All the other parts are thin-walled, with a wall thickness of 10mm, and there are annular ribs with a width of 6-10mm and a height of 10...

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Abstract

The embodiment of the invention discloses a shape correcting device. The shape correcting device comprises a square frame, a positioning block and an adjusting piece; each border of the square frame is matched with one adjusting piece; the adjusting piece penetrates through the border corresponding to the adjusting piece and abuts against the bottom face of the positioning block; and the top surface of the positioning block is used for extruding a workpiece to be subjected to shape correction when the adjusting piece is pushed.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a shape correcting device. Background technique [0002] The solidification process of the casting is a transition process of the alloy liquid from liquid to solid state. During this transition process, the volume of the alloy decreases, which is a process of volume shrinkage. However, the casting is restricted by the sand mold and the structure of the casting itself during the volume shrinkage process, and solidification shrinkage stress will be generated during the solidification process. If the solidification shrinkage stress of each part of the casting is not uniform, the casting will be deformed due to the existence of stress. Especially in the process of processing, the deformation of the casting due to stress release leads to the size of the casting being out of tolerance, resulting in the scrapping of the casting. Contents of the invention [0003] In order to solv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D3/14B21D43/00
CPCB21D3/14B21D43/003
Inventor 薛永军张伟方勇宋强李伟刘艳华刘彧贾海旺和颢霖畅显龙
Owner SHANXI FENXI HEAVY IND
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