Production process of welded pipe formed by bending and welding after slitting and punching

A technology of welding forming and production technology, which is applied in the production of square pipes and round pipes, can solve the problems of low processing efficiency, easily damaged dies, and easy deformation, and achieve the effect of expanding the range of specifications, expanding production specifications, and improving product quality

Pending Publication Date: 2022-04-12
刘大水
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  • Application Information

AI Technical Summary

Problems solved by technology

Through the above operations, the processed steel bar is bent to form a rectangular frame shape, and welded at the gap to form a whole, and then the rectangular frame-shaped steel bar is punched out of the assembly hole by a high-speed punching machine. When punching, the first steel bar The structure is hollow and easy to deform, punching waste is not easy to discharge, resulting in low processing efficiency, and the punch is easy to damage and difficult to debug

Method used

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  • Production process of welded pipe formed by bending and welding after slitting and punching
  • Production process of welded pipe formed by bending and welding after slitting and punching
  • Production process of welded pipe formed by bending and welding after slitting and punching

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Embodiment

[0031] refer to figure 1 Shown, a kind of welded pipe production process of bending and welding forming after punching in strips is characterized in that it comprises the following steps:

[0032] A. Feeding: The steel belt 1 material in the form of a reel is hoisted and placed on the roller frame. One end of the steel belt 1 is fixed by the tractor, and the tractor moves on the horizontal track to pull the steel belt 1 and sends it into the drum unit;

[0033] B. Position correction: the camber is corrected by the roller unit, and the deviation correction guide wheel mechanism is installed on the roller unit, and the force is adjusted on both sides of the steel belt 1 to keep the steel belt 1 in the center position;

[0034] C. Cutting and slitting: the straight steel strip 1 is cut and slitted by a cutting machine, and the width of the slitting is adjusted by the spacing adjustment mechanism of the cutting machine to form a steel strip 11 whose width meets the set value;

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Abstract

The invention discloses a production process of a welded pipe formed by bending and welding after striping and punching, belongs to the technical field of welded pipe production, and solves the problems of low production efficiency and low quality caused by unreasonable process method of bending and welding before punching in the original process. A, feeding, B, position deviation correction, C, cutting and splitting, D, punching and material removing, E, bending and shaping and F, weld joint finishing are sequentially completed, step-by-step machining is achieved, the difference is that punching is conducted firstly, and then bending and shaping welding is conducted, and the effects of improving production efficiency, improving product quality and facilitating machining operation are achieved.

Description

technical field [0001] The invention relates to the technical field of production of round pipes and square pipes of welded pipes, in particular to a production process of welded pipes which are punched in strips and then bent, welded and formed. Background technique [0002] At present, the comparison and analysis of various properties of the three profiles (H-shaped steel, square and rectangular tubes and round tubes) used in welded pipe load-bearing beams and columns show that square and rectangular steel pipes are the best column materials in welded pipes. According to the current situation of steel production in my country, there is still a certain room for development of square and rectangular steel pipes in our country. At the same time, there is a large room for improvement in its processing and production methods. [0003] The existing steel production method is as follows: feeding steel strips, slitting steel strips, bending and forming with abrasive tools, weldin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 刘大水
Owner 刘大水
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