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Device and method for adjusting concave portion on surface of cavity of bogie side beam

A technology of body surface and beam cavity, which is applied in the field of workpiece surface sag adjustment device, to solve the problem of cavity structure surface sag, reduce scrap, and improve appearance quality

Inactive Publication Date: 2020-08-11
CRRC QINGDAO SIFANG CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the technical problems described in the background technology section above, the first object of the present invention is to provide a device for adjusting the depression on the surface of the cavity of the side beam of the bogie to solve the problem of the depression on the surface of the cavity structure of the rail vehicle, improve the appearance quality of the product, and reduce the Scrap due to surface denting of parts

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  • Device and method for adjusting concave portion on surface of cavity of bogie side beam
  • Device and method for adjusting concave portion on surface of cavity of bogie side beam
  • Device and method for adjusting concave portion on surface of cavity of bogie side beam

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[0032] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0033] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the invention clearly states otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, their Indicate the presence of features, steps, operations, means, components and / or combinations thereof;

[0034] As introduced in the background technology, after the overall welding and repair of the bogie ...

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Abstract

The invention discloses a device and method for adjusting the concave portion on the surface of a cavity of a bogie side beam. A set of universal adjusting and repairing device is designed, flame heating is adopted in combination, bolt tightening force is utilized, the concave portion is drawn, and rapid repairing of the concave defect of the cavity structure is achieved. Specifically, a fixed rodis firstly welded to the concave portion in a spot fixed welding manner. A pad iron device and a stop device are additionally arranged. Flame heating is carried out on the concave area and the periphery, and the temperature is controlled to range from 850 DEG C to 900 DEG C through an infrared temperature measurement instrument. A threaded rod is tightened rapidly, and the concave portion is drawn through tightening force. When cooling is carried out till the temperature is about 200 DEG C, various devices are dismounted, a grinding tool is used for grinding the spot fixed welding seam, meanwhile, the spot fixed welding connecting portion is subjected to arc grinding transition, and the surface state is restored.

Description

technical field [0001] The invention discloses a device and a method for adjusting the surface depression of a workpiece, in particular to a device and a method for adjusting the depression on the surface of a bogie side beam cavity. Background technique [0002] The inventor found that after the overall welding and repair of the bogie side beam frame, affected by the internal stress of the structure, the surface of the bogie side beam cavity is easily deformed, and then a depression is formed, resulting in the surface flatness of the workpiece cannot meet the requirements, but in this At present, there is no corresponding mature and quick repair method in the field. Contents of the invention [0003] Aiming at the technical problems described in the background technology section above, the first object of the present invention is to provide a device for adjusting the depression on the surface of the cavity of the side beam of the bogie to solve the problem of the depressi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D3/00B21D37/16B21C51/00
CPCB21C51/00B21D3/00B21D37/16
Inventor 马征征赵永州吕光宙刘伟鑫卢铁鹏
Owner CRRC QINGDAO SIFANG CO LTD
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