Bending welding forming method for rectangular steel pipe

A rectangular steel pipe, welding and forming technology, applied in the field of bending and welding forming, can solve the problems of complicated operation and limited bending angle, etc.

Active Publication Date: 2020-07-10
嘉兴速羽科技有限责任公司
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Problems solved by technology

[0002] The traditional steel pipe bending machine rolls and bends the steel pipe through the rolling die and the pressing mechanism. When the traditional bending machine deals with the rectangular steel pipe, due to the material characteristics of the steel pipe itself, it can only bend a large radius arc, and An adapted compression mold is required, so the operation is complicated and the bending angle is limited

Method used

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  • Bending welding forming method for rectangular steel pipe
  • Bending welding forming method for rectangular steel pipe
  • Bending welding forming method for rectangular steel pipe

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Embodiment Construction

[0019] The present invention will be further explained below in conjunction with the accompanying drawings.

[0020] A bending welding forming method of a rectangular steel pipe, comprising the following steps: before the rectangular steel pipe is bent, a "T"-shaped cutting track is drawn according to the target bending angle, and a corresponding groove is cut on the side of the rectangular steel pipe by laser or plasma cutting method , and then bend the steel pipe corresponding to the groove, and weld the bent "T" groove.

[0021] In this embodiment, the steps of drawing a "T"-shaped cutting track are described by bending a rectangular steel pipe with a size of 25*25mm*1.5mm at 128°:

[0022] Step 1: Since the wall thickness of the steel pipe is 1.5mm, draw a straight line aa' on a surface perpendicular to the bending surface at a distance of 2mm from one edge of the steel pipe.

[0023] Step 2: Make the bending center line oo' intersect aa' at point o, and intersect the oth...

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Abstract

The invention discloses a bending welding forming method for a rectangular steel pipe. Before the rectangular steel pipe is bent, a T-shaped cutting track is drawn according to a target bending angle,a corresponding groove is cut in the side face of the rectangular steel pipe with a laser or plasma cutting method, then the corresponding groove of the steel pipe is bent, the bent T-shaped groove is welded, and then the rectangular steel pipe can be bent. The method has the beneficial effects that rapid forming is achieved, and dies are not needed, is suitable for small-scale production and manufacturing, and can meet the requirements of different bending angles within a certain range.

Description

technical field [0001] The invention discloses a bending welding forming method of a rectangular steel pipe. Background technique [0002] The traditional steel pipe bending machine rolls and bends the steel pipe through the rolling die and the pressing mechanism. When the traditional bending machine deals with the rectangular steel pipe, due to the material characteristics of the steel pipe itself, it can only bend a large radius arc, and An adapted compression mold is required, so the operation is complicated and the bending angle is limited. Contents of the invention [0003] Purpose of the invention: Aiming at the above-mentioned prior art, a bending and welding forming method of rectangular steel pipes is proposed, which can make the rectangular steel pipes maintain continuous curvature on the outer surface and have larger bending angles, and can adapt to different bending angles within a certain range. Require. [0004] Technical solution: A bending and welding for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 史昀珂蒋祖贵王奕焜钟停江
Owner 嘉兴速羽科技有限责任公司
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