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Three-dimensional welding line automatic recognition device and method

An automatic identification, three-dimensional technology, applied in welding accessories, image data processing, 3D modeling, etc., can solve problems such as electromagnetic interference, high temperature radiation, waste of manpower and material resources, and achieve the effect of improving accuracy, improving efficiency and reducing costs

Pending Publication Date: 2018-09-21
CHINA JILIANG UNIV
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Problems solved by technology

But it also has the following disadvantages: 1. The visual sensor is easily disturbed by strong arc light, high temperature radiation, electromagnetic interference, and dust splashing, resulting in measurement errors
For mass production of single or mixed products, the repeated teaching process will waste a lot of manpower and material resources

Method used

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  • Three-dimensional welding line automatic recognition device and method

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Embodiment Construction

[0040] Below in conjunction with accompanying drawing and embodiment and the present invention will be further described.

[0041] Such as figure 1As shown, the specific implementation of the present invention comprises a DLP projector 8, a CCD industrial camera 11, a welding robot 2, a conveyor belt 3, a servo motor 9 and two photoelectric sensors 5,6; The wheel is connected to the servo motor 9, and the workpiece 7 to be welded is placed on the conveyor belt 3, and the conveyor belt 3 is driven by the servo motor 9 to transport the workpiece 7 to be welded; the upper side of the conveyor belt 3 entrance is provided with a CCD industrial camera 11 and a DLP projector 8, and the conveyor belt 3 A welding torch 4 is arranged above the exit side, and the welding torch 4 is connected to the welding robot 2, and the welding torch 4 is controlled by the welding robot 2 to move to weld the welding workpiece 7; between the welding torch 4 and the DLP projector 8 / CCD industrial camera...

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Abstract

The invention discloses a three-dimensional welding line automatic recognition device and method. A conveyor belt sends a workpiece to be welded to the projection range at a constant speed, a photoelectric sensor is triggered, an industrial personal computer controls a motor to stop operation, a projector projects a light pattern, an industrial camera performs image acquisition, a surface model ofthe welding line three-dimensional information is obtained by the three-dimensional reconstruction through phase-measuring profilometry and exported to a industrial control computer for processing, three-dimensional coordinate information of the welding line to be welded is processed and obtained and sent to a welding robot, the workpiece to be welded reaches the designated position, the industrial personal computer controls the motor to stop operation, and the robot performs welding. The three-dimensional welding line automatic recognition device and method avoids the impact of strong arc light, high-temperature radiation, electromagnetic interference and smoke spatter which are generated by a traditional line structure light welding robot during welding on the detection of welding lineposition information by means of scanning first and welding afterwards. The precision of welding is improved, the cost of manual welding is reduced, and the efficiency of assembly line welding is greatly improved.

Description

technical field [0001] The invention relates to a three-dimensional information processing device and method, in particular to a three-dimensional welding seam automatic recognition device and method. Background technique [0002] With the continuous advancement of industrial technology, welding technology has become an important metal thermal processing technology, which is widely used in machinery, materials and other industries, and the requirements for welding quality are getting higher and higher. In traditional manual welding, individual factors such as welding personnel's technical level, sense of responsibility, and fatigue vary greatly, and it is difficult to ensure the stability of welding quality. Therefore, in order to ensure the welding quality of products and reduce the influence of human factors, welding automation is the main development direction of future welding. At present, most of the welding robots used at home and abroad are programmable teaching and ...

Claims

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Application Information

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IPC IPC(8): B23K9/32G06T17/00
CPCG06T7/181G06T17/00B23K9/32
Inventor 孙坚王凯徐红伟钟邵俊陆城炜邹睿
Owner CHINA JILIANG UNIV
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