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Longitudinal seam welding machine suitable for thin-wall small-diameter suspended single-face welding and double-face forming

A single-sided welding double-sided, longitudinal seam welding technology, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., to ensure straightness, reduce welding deformation, improve coaxiality and straightness. Effect

Active Publication Date: 2014-11-05
CHENGDU AIGRE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned patents have improved the method of single-sided welding and double-sided forming, for welding thin-walled (1-1.5mm) and small-diameter (minimum to 100mm) coiled pipe workpieces, it is impossible to realize the suspended single The effect of double-sided molding by side welding

Method used

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  • Longitudinal seam welding machine suitable for thin-wall small-diameter suspended single-face welding and double-face forming
  • Longitudinal seam welding machine suitable for thin-wall small-diameter suspended single-face welding and double-face forming
  • Longitudinal seam welding machine suitable for thin-wall small-diameter suspended single-face welding and double-face forming

Examples

Experimental program
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Effect test

Embodiment 3

[0068] A longitudinal seam welding machine suitable for thin-walled small-diameter, suspended single-sided welding and double-sided forming includes a frame 20, on which a positioning workpiece device 21, a closing and pressing device 22, a mandrel supporting device 23, and a core Shaft device 24, centering device 25 and traveling gantry welding device 26.

[0069] The positioning workpiece device 21 is fixed on the middle position of the frame 20, and the closing pressing device 22 includes a first closing pressing device and a second closing pressing device, and the first closing pressing device and the second closing pressing device The devices are respectively located on both sides of the positioning device, and the first closing and pressing device and the second closing and pressing device are located on the slide rail and connected with the horizontal cylinder; the mandrel device 24 is located above the positioning device, when the mandrel device When 24 is in the horiz...

Embodiment 4

[0078] A longitudinal seam welding machine suitable for thin-walled small-diameter, suspended single-sided welding and double-sided forming includes a frame 20, on which a positioning workpiece device 21, a closing and pressing device 22, a mandrel supporting device 23, and a core Shaft device 24, centering device 25 and traveling gantry welding device 26.

[0079] The positioning workpiece device 21 is fixed on the middle position of the frame 20, and the closing pressing device 22 includes a first closing pressing device and a second closing pressing device, and the first closing pressing device and the second closing pressing device The devices are respectively located on both sides of the positioning device, and the first closing and pressing device and the second closing and pressing device are located on the slide rail and connected with the horizontal cylinder; the mandrel device 24 is located above the positioning device, when the mandrel device When 24 is in the horiz...

Embodiment 5

[0090] A longitudinal seam welding machine suitable for thin-walled small-diameter, suspended single-sided welding and double-sided forming includes a frame 20, on which a positioning workpiece device 21, a closing and pressing device 22, a mandrel supporting device 23, and a core Shaft device 24, centering device 25 and traveling gantry welding device 26.

[0091] The positioning workpiece device 21 is fixed on the middle position of the frame 20, and the closing pressing device 22 includes a first closing pressing device and a second closing pressing device, and the first closing pressing device and the second closing pressing device The devices are respectively located on both sides of the positioning device, and the first closing and pressing device and the second closing and pressing device are located on the slide rail and connected with the horizontal cylinder; the mandrel device 24 is located above the positioning device, when the mandrel device When 24 is in the horiz...

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Abstract

The invention relates to welding equipment, in particular to a longitudinal seam welding machine suitable for thin-wall small-diameter suspended single-face welding and double-face forming. The longitudinal seam welding machine comprises a rack. The rack is provided with a work-piece locating device, folding and pressing devices, a central spindle supporting device, a central spindle device, a centering device and a walking gantry welding device. The first folding and pressing device and the second folding and pressing device are located on a sliding rail and connected with a horizontal air cylinder. The central spindle device is located above the locating device. According to the technical scheme, acting force is exerted on a longitudinal seam of a rolling pipe from left and right, under the effect of the misalignment-preventing centering device, seam alignment of a work-piece can be finished without manual adjustment, the straightness of butt seams can be ensured, and the phenomena that positions of the butt seams need to be manually adjusted many times and misalignment is corrected in the past production process can be avoided.

Description

technical field [0001] The invention relates to welding equipment, in particular to a longitudinal seam welding machine suitable for thin-walled small-diameter, suspended single-sided welding and double-sided forming. Background technique [0002] With the continuous development of industrial production, the demand for high-quality coiled pipe parts is increasing. In order to meet the increased demand, the production efficiency and automation of the longitudinal seam welding of rolled pipes must be improved. It has always been a difficult point to ensure the coaxiality of the rolled pipe and the precision longitudinal seam welding of the weld seam in the longitudinal seam welding of the rolled pipe; in addition, the existing longitudinal seam welding machine adopts the It is a manual adjustment method, the joint speed is slow and the gap is difficult to control accurately. [0003] For example, the patent application number is 201320201892.2, the application date is 2013-0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/04
CPCB23K37/0461B23K37/0535B23K2101/06
Inventor 骆德阳吕其兵张曦刘宇冯建伟李立胜
Owner CHENGDU AIGRE TECH
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