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Round pipe straight seam welding tool and method for controlling deformation of round pipe straight seam welding

A technology of straight seam welding and round pipe, which is applied in the field of deformation control of round pipe straight seam welding, can solve the problems of easy deformation of the interface, poor versatility, and low production efficiency of welding tooling, so as to facilitate observation of weld seams, reduce welding deformation, Facilitate the anti-deformation effect

Active Publication Date: 2018-01-30
WEICHAI HEAVY MACHINERY
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  • Description
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a circular pipe straight seam welding tool to solve the technical problems that the interface is easily deformed during the circular tube straight seam welding, and the existing welding tool has low production efficiency and poor versatility

Method used

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  • Round pipe straight seam welding tool and method for controlling deformation of round pipe straight seam welding
  • Round pipe straight seam welding tool and method for controlling deformation of round pipe straight seam welding
  • Round pipe straight seam welding tool and method for controlling deformation of round pipe straight seam welding

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] Such as Figure 1 to Figure 4 Commonly shown, a round pipe straight seam welding tool, including a frame 1, the tool also includes a fixed support 2 and a mandrel 3, the fixed support 2 is arranged on the frame 1, and the mandrel 3 has a fixed part 31 and a protruding part 32, the fixed part 31 is fixedly installed on the fixed support 2, in this embodiment, the mandrel 3 is arranged horizontally, and in order to reduce the weight of the mandrel, the mandrel 3 adopts a hollow structure, and the upper surface of the protruding part 32 is fixed Two anti-deformation liners 4 oppositely arrange...

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Abstract

The invention discloses a round pipe straight-seam welding fixture, belonging to the technical field of round pipe welding. The round pipe straight-seam welding fixture comprises a rack, a fixed support and a spindle, wherein the spindle is provided with a fixed part and an extending part; the fixed part is fixedly arranged on the fixed support; the upper surface of the extending part is fixedly provided with two anti-deforming liner plates which are oppositely arranged; the anti-deforming liner plates both extend along the axis of the spindle; a clearance is formed between the two anti-deforming liner plates; the two anti-deforming liner plates and the outer surface of the spindle jointly form a bush, and the cross section of the bush is of a segment shape; and two pressing plates which are oppositely arranged and are driven by a clamping mechanism are also arranged on the rack. The invention further discloses a deformation control method for round pipe straight-seam welding adopting the above round pipe straight-seam welding fixture. By adopting the round pipe straight-seam welding fixture and the deformation control method, welding deformation can be effectively reduced; the dimension precision of a round pipe is ensured; meanwhile the production efficiency is high; and the universality is good.

Description

technical field [0001] The invention belongs to the technical field of round pipe welding, and in particular relates to a round pipe straight seam welding tool and also relates to a method for controlling deformation of round pipe straight seam welding. Background technique [0002] Low-carbon steel round pipes with a diameter of φ60mm~φ200mm and a wall thickness of ≤2mm are non-standard profiles. In actual production, the plates are rolled into cylinders first, and then CO 2 Gas shielded welding is welded by longitudinal seams, and the welds generally adopt the form of lap joints or butt joints. [0003] At present, the straight seams of domestic round pipes are mostly welded by special machines, and the welding tooling is generally a structure with one end fixed and one end open. The position of the weld seam is fixed by means of pressing plates, etc., and the pressing device is mostly a "U"-shaped split structure. . During welding, due to the small contact area between ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/32B23K37/053B23K101/06
CPCB23K9/32B23K37/0533B23K37/0535B23K2101/06
Inventor 刘新胜
Owner WEICHAI HEAVY MACHINERY
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