Multi-point synchronous automatic pre-welding scanning type laser tracking method and device for welded joint of pipeline

A laser tracking, synchronous and automatic technology, applied in auxiliary devices, tubular objects, welding equipment, etc., can solve the problems of high cost, difficult control, and heavy mechanical structure

Active Publication Date: 2015-03-18
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0002] The multi-point segmental welding technology is related to the equipment structure. Because of the increase of the welding torch, if the conventional seam tracking technology scheme is used: a welding torch needs to be equipped with a seam tracking system during the welding process, and its hardware system is very large and the mechanical structure is heavy. , The control software is complex, difficult to control, and very expensive

Method used

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  • Multi-point synchronous automatic pre-welding scanning type laser tracking method and device for welded joint of pipeline
  • Multi-point synchronous automatic pre-welding scanning type laser tracking method and device for welded joint of pipeline

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Embodiment 1

[0020] Example 1: Such as figure 1 , figure 2 As shown, the pipeline multi-point synchronous automatic welding pre-scanning welding seam laser tracking device, #1 welding torch 1, #2 welding torch 2, #3 welding torch 3, #4 welding torch 4, #5 welding torch 5, #6 Welding torch 6, #7 welding torch 7 and #8 welding torch 8 are located outside the circumference of the worktable, #1 welding torch 1, #2 welding torch 2, #3 welding torch 3, #4 welding torch 4, #5 welding torch 5. The angle between #6 welding torch 6, #7 welding torch 7 and #8 welding torch 8: the angle between #1 welding torch 1 and #2 welding torch 2 is 45 degrees, #3 welding torch 3 and # 2 The angle between welding torch 2 is 45 degrees, the angle between #3 welding torch 3 and #4 welding torch 4 is 45 degrees, the angle between #4 welding torch 4 and #5 welding torch 5 is 45 degrees, The angle between #5 torch 5 and #6 torch 6 is 45 degrees, the angle between #6 torch 6 and #7 torch 7 is 45 degrees, and the angl...

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Abstract

The invention provides multi-point synchronous automatic pre-welding scanning type laser tracking method and device for a welded joint of a pipeline, and belongs to the technical field of welding. The method comprises the steps of accurately scanning the welded joint in all directions through a laser sensor before welding; drawing a movement track of each welding torch and the deviation value of each welding torch and the center position of the welded joint; transmitting a deviation signal to a control system; processing, recognizing and fragmenting through the software program; distributing to a position adjusting mechanism of each welding torch according to the corresponding position; informing each welding torch of the movement track of the corresponding welded joint in advance; automatically adjusting the deviation in left and right of a plurality of welding torches and the center of the welded joint, so as to realize the welded joint tracking during welding. According to the method and device, the presetting of the movement track of each welding torch is performed by the pre-scanning type welded joint laser tracking technology, so as to reach the purpose of controlling to automatically adjusting the left and right positions of each welding torch in each welding area; a pipeline multi-point synchronous automatic welding device and a welding torch and laser tracking system are respectively mounted on two parallel movement mechanisms.

Description

Technical field [0001] The invention relates to a pre-scanning laser tracking method and device for multi-point synchronous automatic welding of pipelines, and belongs to the technical field of welding. Background technique [0002] The multi-point segmented welding technology is related to the equipment structure. Because of the increase in welding torches, if the conventional welding seam tracking technical scheme is followed: a welding torch needs to be equipped with a welding seam tracking system during the welding process, and the hardware system is very large and the mechanical structure is heavy. , The control software is complex, difficult to control, and very expensive in cost. Summary of the invention [0003] In order to overcome the shortcomings of the prior art, the present invention provides a pre-scanning laser tracking method and device for multi-point synchronous automatic welding of pipelines. [0004] The pre-scanning laser tracking method for multi-point simulta...

Claims

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Application Information

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IPC IPC(8): B23K37/00B23K37/02
CPCB23K37/00B23K37/0258B23K2101/06
Inventor 张锋苗新刚张毅马志锋王长江张建平
Owner BC P INC CHINA NAT PETROLEUM CORP
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