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Welding method for tube plate of robot

A tube sheet welding and robot technology, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of large volume and weight of pressure vessels, complicated device use and installation process, and low degree of automation, etc. The effect of ensuring welding quality, high degree of intelligence, and improving welding processing efficiency

Inactive Publication Date: 2015-03-04
JIANGNAN UNIV
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Problems solved by technology

[0003] At present, although the welding of pressure vessels has begun to use semi-automatic and specialized welding equipment such as welding operation frames and automatic welding trolleys, the use and installation of these devices are complicated and the degree of automation is not high.
Due to the large volume and weight of the pressure vessel, it is difficult to transport and hoist, and the welding rotary table is bulky and expensive, and it is not easy to perform displacement operations

Method used

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  • Welding method for tube plate of robot
  • Welding method for tube plate of robot

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Embodiment Construction

[0023] refer to figure 1 and figure 2 , a robot tube sheet welding method, comprising the following steps:

[0024] A. Assemble the tube sheet to be welded and fix it on the welding fixture;

[0025] At this time, the welding operator assembles the tube sheet, and after confirming that it meets the standard, clamps and fixes it.

[0026] B. Install the welding inspection unit to the end of the robot to inspect the assembly quality of the tube sheet;

[0027] In step B, after the welding inspection unit is installed on the end of the robot, it is necessary to inspect the assembly quality of the tube sheet. The method for inspecting the assembly quality of the tube sheet is a robot vision method, and the external dimensions of the tube sheet are determined by CCD image acquisition and image processing. , the thickness and material of the assembled steel plate, the cleaning status of the area to be welded, the size of the weld processing groove and the welding material to be ...

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Abstract

The invention relates to a welding method for a tube plate of a robot. The robot is applied to the field of the welding for the tube plate of a pressure vessel. The welding method comprises the following steps: integrally mounting a tube plate welding head and a detecting unit at the tail end of the robot; planning a welding path and writing a welding program on the basis of a to-be-welded tube plate three-dimensional model according to a tube plate welding technical demand, thereby realizing automatic welding; adopting a visual detecting method for detecting the welding quality. According to the invention, a welding detecting unit is combined with the robot, so that the welding processing efficiency is increased, the intelligent degree of the welding method is high, workpieces in various sizes can be processed, and the welding quality of the products is ensured.

Description

technical field [0001] The invention relates to a welding method for a robot pressure vessel tube plate, which belongs to the field of pressure vessel welding. Background technique [0002] Tube sheets are commonly used components in pressure vessels such as heat exchangers, reactors, and storage tanks, and are widely used in petroleum, chemical, electric power, metallurgy, light industry, nuclear power and other industries. In 2011, there were 419 pressure vessel enterprises above designated size in China, with a total industrial output value of 70.7 billion yuan. It is estimated that by 2017, the market size of my country's metal pressure vessel industry is expected to exceed 120 billion yuan. However, the welding and manufacturing process of pressure vessels in my country has long-term problems such as low automation, low efficiency, and the need for a large number of skilled workers to repeat labor. While increasing costs, it is difficult to guarantee quality. At presen...

Claims

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Application Information

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IPC IPC(8): B23K37/00
CPCB23K37/00B23K2101/12
Inventor 平雪良田媛白亮亮蒋毅李朝阳
Owner JIANGNAN UNIV
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