Welding process parameter optimization method suitable for different pipe diameters

A technology of welding process and optimization method, which is applied in the direction of welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of complicated welding method specifications and various important parameters, and achieve the effect of ensuring stability and improving the forming effect

Pending Publication Date: 2021-11-19
THE SIXTH CONSTR CO LTD OF CHINA NAT CHEM ENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the prior art, the MAGW welding method is commonly used for all-position welding of pipelines. However, the specification of this welding method is relatively complicated, and there are many important parameters. unresolved issues

Method used

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  • Welding process parameter optimization method suitable for different pipe diameters
  • Welding process parameter optimization method suitable for different pipe diameters
  • Welding process parameter optimization method suitable for different pipe diameters

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Experimental program
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Effect test

Embodiment 1

[0039] Obtain various basic information of the pipeline to be welded, the basic information includes: pipeline material, wall thickness, welding process and groove shape, the welding pipeline with the same basic information adopts the following steps for all-position welding:

[0040] Step 1. Obtain the diameter D of the pipeline to be welded by moving the welding robot at a fixed distance;

[0041] Step two, such as figure 1 As shown, the way to obtain the value of the pipe welding area is: divide the pipe into 8 equal parts, and the value of the equal part area corresponding to the flat welding of the pipe is 1, and the values ​​are 2, 3, 4, 5, 6 in the clockwise direction , 7, 8. Collect the current crawling angle of the welding robot, and determine the value of the welding area of ​​the pipeline according to the current crawling angle.

[0042]Step 3: Input the area value corresponding to the pipe diameter D and the current crawling angle of the welding robot into the p...

Embodiment 2

[0052] In the process of all-position welding, a welding process parameter optimization method suitable for different pipe diameters is adopted to control the action of the entire welding robot through a wireless remote control. After the welding robot starts running, it walks a certain distance, calculates and obtains the pipe diameter data, and sends it to the control module. The crawling angle detection module is built into the all-position welding robot to obtain the crawling angle α information of the welding robot in real time. The control module combines the above two data The welding process parameters are calculated by the welding process parameter optimization method adapting to different pipe diameters of the present invention, and sent to the execution module of the welding robot, and the welding robot receives and executes the instructions sent by the control module, so as to realize the automatic matching of process parameters in the whole welding process The pipe...

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Abstract

The invention discloses a welding process parameter optimization method suitable for different pipe diameters. The welding process parameter optimization method comprises the following steps that firstly, the diameter D of a to-be-welded pipeline is obtained; secondly, the current crawling angle of a welding robot is collected, and the value of a pipeline welding area is determined according to the current crawling angle; thirdly, the pipeline diameter D and the current crawling angle of the welding robot are correspondingly converted into area values to be input into a technological parameter control formula, and welding current I is obtained; and fourthly, the welding robot is controlled according to the welding current I, and all-position welding of a pipeline is achieved. According to the method, the problem that during welding field operation of pipeline welding engineering in the petrochemical industry, a professional welder needs to observe a welding seam in real time and frequently adjust welding current in the welding process, and consequently the welding quality is difficult to guarantee is effectively solved, and all-position intelligent welding is achieved.

Description

technical field [0001] The invention relates to the technical field of automatic welding. More specifically, the present invention relates to a welding process parameter optimization method adapting to different pipe diameters. Background technique [0002] For a long time, my country's petrochemical industry has had a decisive impact on the country's economic development. The petrochemical industry involves a huge amount of pipeline welding operations, harsh on-site operating environments, and low automation. In recent years, there are fewer and fewer young welders, a shortage of manual welder resources, and increased costs have become common problems faced by many chemical construction units. The petrochemical pipeline welding project puts forward higher requirements for the quality, efficiency and automation level of pipeline welding. However, during on-site welding, the position of the pipeline to be welded is fixed and cannot be rotated. The welding requirement of the...

Claims

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Application Information

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IPC IPC(8): B23K37/00
CPCB23K37/00
Inventor 王中任肖逸汤宇袁莉刘海生李宁金利英刘群林
Owner THE SIXTH CONSTR CO LTD OF CHINA NAT CHEM ENG
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