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Pipeline welding clamp

A technology for welding fixtures and pipes, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve problems such as difficult operation, inconvenient operation for welders, and increased labor intensity of welders, so as to improve welding efficiency and avoid The effect of welding dead angle and high clamping stability

Active Publication Date: 2021-07-23
THE FIFTH CONSTR OF SINOPEC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing fixtures have the following disadvantages: the existing fixtures only have a simple function of clamping and positioning the pipeline, and in actual use, the welder still needs to hold the welding torch Welding and fixing the butt joints of the pipes increases the labor intensity of the welder on the one hand, and on the other hand brings great inconvenience to the welder due to the dead angle that is difficult to operate during welding. In addition, the existing fixtures only It is convenient to clamp the pipes at low positions, but it cannot be used for those pipes at higher positions, so it has great limitations, so the present invention re-proposes a pipe welding clamp

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as Figure 1 to Figure 5 As shown, the present invention discloses a pipeline welding fixture, which is used for butt welding two pipelines 1, including: a straddle support mechanism and a split-and-close welding mechanism; the straddle support mechanism can be clamped at the same time On the two pipelines 1, the nozzles of the two pipelines 1 are butted to form a welding seam, and a track space P is left on the periphery of the welding seam; the split welding mechanism is installed on the spanning on the bracket mechanism, so as not to hinder the clamping of the straddling bracket mechanism on the two pipes 1, and when it is transformed into a combined state, it can form a circular track S in the track space P, so that it can be installed on the split type The welding torch 2 on the welding mechanism can move along the circular track S to weld the welding seam.

[0050] When in use, first adjust the split welding mechanism to the separate state, see figure 1 , s...

Embodiment approach

[0054] Such as figure 1 and Figure 4 As shown, the straddle support mechanism includes two spans 3, the spans 3 are inverted V-shaped spans composed of arc segments 3-1 and two oblique bar segments 3-2, the two spans The arc segment 3-1 of the span 3 is coaxially arranged, and the two spans 3 are connected by two connecting rods 4, and the track space P is between the two spans 3;

[0055] And, the inner surface of each of the inclined bar sections 3-2 is equipped with a pressing block 6 through an adjustable pressing mechanism 5, and the adjustable pressing mechanism 5 includes The rotating seat 5-1 on the top, the lifting adjustment screw 5-2 is rotatably installed on the rotating seat 5-1, and the lifting adjusting screw 5-2 is threadedly matched with the moving seat 5-3, and the moving seat 5-3 A rotating shaft 5-4 is rotatably installed on the top, and the rotating shaft 5-4 is fixed to the lower end of the support arm 5-5. The pressure block 6 is installed on the uppe...

Embodiment 3

[0069] On the basis of the above-mentioned embodiment two, the present embodiment three also adopts the following preferred implementation modes:

[0070] The bottom surface of the arc section 3-1 of the straddle 3 is fixed with a plurality of ball cages, each of which is rollingly mounted with a plurality of balls 10 extending along the axis of the arc section 3-1; and , the pressing block 6 is a roller that rotates with the support arm 5-5, and the rotation axis of the pressing block 6 is perpendicular to the axis of the arc segment 3-1.

[0071] Therefore, when the arc segments 3-1 of the two straddles 3 are mounted on the two pipes 1 respectively, the two pipes 1 can roll and fit with the balls 10, and the pressing block 6 is pressed against the pipe 1. When the bottom side of the pipe is on the side, the pressure block 6 can roll and fit with the pipe 1 along its axial direction, so that the pipe welding jig of the present invention can move relative to the two pipes 1 al...

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Abstract

The invention discloses a pipeline welding clamp. The pipeline welding clamp comprises a straddling support mechanism and a split-combination type welding mechanism. The straddling support mechanism is erected on two pipelines at the same time in a clamping mode, so that pipe openings of the two pipelines are in butt joint to form a welding seam, the straddling support mechanism can be suitable for the pipelines located at high and low positions, and use limitation does not exist. Moreover, when the split-combination type welding mechanism is in a split state, the erection of the straddling support mechanism on the two pipelines can be prevented from being hindered, and when the split-combination type welding mechanism is converted into a combination state, an annular track can be formed in a track space on the periphery of the welding seam, so that a welding gun installed on the split-combination type welding mechanism can move along the annular track, the welding seam is welded, any welding dead corner can be avoided, a welder does not need to hold the welding gun by hand for welding, the labor intensity of the welder is greatly reduced, and the welding efficiency is improved.

Description

technical field [0001] The invention relates to pipeline welding equipment, in particular to a pipeline welding fixture. Background technique [0002] In the butt welding of pipes, the joints of the two pipes need to be aligned, and then the welder uses a welding torch to weld the two pipes. Before welding, the two pipes need to be clamped and fixed with a clamp, and then welded. [0003] Chinese patent application number CN 112025199 A discloses a welding fixture for butt welding of pipelines. It discloses a solution for clamping and fixing arc structures, which can form a three-point clamping structure to clamp the pipeline through the cooperation of support rollers and fixing belts. It is fixed, the clamping and fixing effect is good, and it can be used for welding fixtures with different pipe diameters. It is characterized in that two sets of slide rails are placed in the base, and one set of slide rails is composed of two slide rails. The slide rails The two ends are r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00B23K37/053
CPCB23K37/00
Inventor 冯彪
Owner THE FIFTH CONSTR OF SINOPEC