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Method for processing cold-bending welding square quarter bend with punched hole

A processing method and technology for square and rectangular tubes, which are applied in metal processing equipment, manufacturing tools, feeding devices, etc., can solve the problems of high processing cost and low processing efficiency, and achieve the advantages of extending service life, reducing cost and improving safety. Effect

Inactive Publication Date: 2009-04-15
武钢集团有限公司
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AI Technical Summary

Problems solved by technology

In order to meet specific needs, some processing plants solve the problem of metal cutting by drilling holes on the metal plate to be processed, but the processing efficiency of this method is very low, and the processing cost is high

Method used

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] The processing steps of conventional cold-formed welded profiles include; feeding, uncoiling, leveling, shearing, butt welding, loop storage, cold-formed forming, welding, sizing, straightening, length-setting, collection, packaging, etc. process.

[0019] The processing method of the punched cold-formed welded profile of the present invention is improved on the basis of the original production method of the cold-formed welded profile. On the steel, punching equipment is firstly used to complete the punching at a fixed position according to the design requirements; and then the punched strip steel continues to be cold-formed and welded.

[0020] The specific steps of the improved production method are: feeding, uncoiling, level...

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Abstract

The invention discloses a method for machining a square rectangular tube through punching, cold bending and welding and belongs to the field of metal machining. The method mainly comprises the following steps: firstly, punching equipment is utilized to punch strip steel which is machined to a specific specification; and secondly, the strip steel is machined through cold bending, welding and other molding process; and the punching and the cold bending, welding and molding of the strip steel are combined together. The punching equipment can select a punching machine set consisting of a plurality of punching machines according to the operating speed of a production line, and the number and the density of punching holes which are to be treated with machining. The machining method can directly machine and complete the cold-bending welded tubes with the punched holes and various specifications and meet new requirements of machining a metal section. Further, the machining method can perform continuous machining by utilizing the production line, can meet the machining requirements of high efficiency and large batch. Moreover, compared with the prior machining method through drilling, the machining method greatly reduces cost.

Description

technical field [0001] The invention relates to a metal processing technology, in particular to a processing method for punching and cold-bending welded square rectangular pipes. Background technique [0002] Cold-formed square tubes are widely used in various industries such as vehicle production. With the continuous expansion of the application field, there is a demand for processing punching holes on the existing cold-formed welded square tubes. However, cold-formed welded pipe and punching belong to different metal processing fields, that is, cold-formed processing and welding do not consume metal, and only produce finished products through cold-formed deformation, welding and other processes, which belong to the field of metallurgical rolling processing; Or the processing method of the mold with cutting consumption, which belongs to the field of mechanical processing. In order to meet specific needs, some processing factories solve the problem of metal cutting by dril...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/08B21D28/24B21D43/00
Inventor 郭胜鸿丁敏李烨俞善喜邓广
Owner 武钢集团有限公司
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