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Real time monitoring device of the three-dimensional laser beam welding and incising process

A real-time monitoring and three-dimensional laser technology, applied in laser welding equipment, welding equipment, program control, etc., can solve the problems of simultaneous acquisition, difficulty in accurately judging welding and cutting quality, narrow application range, etc., to achieve real-time quality monitoring, Realize the effect of penetration monitoring and control

Inactive Publication Date: 2007-12-05
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

However, the existing coaxial monitoring technology only collects and analyzes one kind of radiation coaxially from above the molten pool, but cannot collect and analyze the molten pool or plasma radiation at the same time, which makes it difficult to accurately judge the quality of welding and cutting, and has a narrow scope of application.

Method used

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  • Real time monitoring device of the three-dimensional laser beam welding and incising process
  • Real time monitoring device of the three-dimensional laser beam welding and incising process
  • Real time monitoring device of the three-dimensional laser beam welding and incising process

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Embodiment Construction

[0023] Explain the specific embodiment of the present utility model below in conjunction with accompanying drawing:

[0024] Figure 1 shows a schematic diagram of a coaxial monitoring device for three-dimensional laser welding and cutting processes. The light guide mirror 1 is fixed on the first lens support 13 by the first lens pressure ring 12, and the first lens support 13 is fixed on the main box 8. middle. The laser focusing mirror 9 is fixed in the mechanism above the nozzle. The beam splitter 2 is fixed on the second lens support 15 by the second lens pressure ring 14 , and the second lens support 15 is fixed in the side box 4 . The connecting plate 3 connects the main box body 8 on the left side and the side box body 4 on the right side. The infrared photoelectric sensor clamping tube 5 used to collect infrared radiation light is fixed on the convex plate on the right side of the side box 4 by bolts, and the photoelectric sensor clamping tube 6 used to collect plasma...

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Abstract

The present invention proposes one kind of 3D real-time monitoring device for laser welding and cutting process. The 3D real-time monitoring device can acquire the coaxial infrared waveband and plasma radiation light signal for real-time quality monitoring. Compared with available technology acquiring only one kind of radiation light information, the present invention has the advantage of providing more precise information for the closed-loop control of 3D laser processing.

Description

technical field [0001] The invention relates to a device for real-time monitoring of three-dimensional laser welding and cutting process and quality. Background technique [0002] Laser welding and cutting can be used to process metal and non-metal materials, and the heat-affected zone is small. Because the beam is easy to guide, flexible and flexible processing methods can be used. Based on the above advantages, it has been widely used in industry, especially in the fields of automobile, metallurgy, aerospace and national defense. However, while laser welding and cutting processing technology is widely used, effective real-time monitoring of its processing process and quality is still an urgent problem to be solved, and it is a necessary prerequisite for further implementation of closed-loop control. In various three-dimensional laser processing processes, taking laser welding as an example, there are many factors affecting the welding process, such as plasma state, focus ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/00B23K26/42G05B19/048B23K26/03B23K26/70
Inventor 王春明李斌胡伦骥胡席远刘建华
Owner HUAZHONG UNIV OF SCI & TECH
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