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A method for detecting laser cutting nozzle plugging

A laser cutting and cutting nozzle technology, which is applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of cutting nozzle clogging, blocking laser beam transmission, and excessive waste, and achieves low cost, simple and convenient detection, and detection precise effect

Active Publication Date: 2015-09-30
KUNSHAN THETA MICRO
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Problems solved by technology

like figure 2 As shown, the longer the time, the more waste materials will accumulate, and finally the dross 13 will cause the cutting nozzle 12 to be blocked, blocking the transmission of the laser beam, causing the cutting nozzle 12 to not work normally
Affected by the processing technology, it is not possible to stop frequently during the laser cutting process to detect the clogging of the laser cutting nozzle. During the laser cutting process, the clogging of the laser cutting nozzle cannot be determined

Method used

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  • A method for detecting laser cutting nozzle plugging
  • A method for detecting laser cutting nozzle plugging
  • A method for detecting laser cutting nozzle plugging

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Embodiment Construction

[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific diagrams.

[0016] refer to figure 1 , image 3 , a method for detecting laser cutting nozzle clogging, which judges the clogging situation of the cutting nozzle 12 by detecting the change of the compressed air flow inside the cutting nozzle in real time; when the compressed air flow decreases to a set range, the cutting nozzle 12 is prompted clogged. Specifically, the following method is adopted: the compressed air enters the flow sensor 3 through the pressure reducing valve 2, and then enters the cutting nozzle 12 for coaxial air blowing. The flow sensor 3 detects the flow rate of the compressed air in real time, and transmits the flow signal to the signal processing module. The processing module processes the flow signal, and when the flow information is lo...

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Abstract

The invention relates to the field of laser cutting auxiliary equipment, in particular to a detection method for hole blocking of a laser cutting nozzle. The method for detecting hole blocking of the laser cutting nozzle is characterized in that the blocking condition of the cutting nozzle is judged through detecting the variation condition of the flow rate of compressed air inside the cutting nozzle in real time. When the flow rate of the compressed air is reduced to a setting range, the blocking of the cutting nozzle is indicated. Since the technical scheme is adopted, the method has the advantages that the blocking condition of the cutting nozzle can be understood in real time, and cleaning indication can be timely given under the circumstance that the cutting nozzle is blocked.

Description

technical field [0001] The invention relates to the field of laser cutting auxiliary equipment, in particular to a method for detecting hole blocking of laser cutting nozzles. Background technique [0002] During the laser cutting process, the laser beam is irradiated onto the surface of the material to be cut 11 after being focused. In order to assist laser cutting, the cutting nozzle 12 needs to be coaxially blown, and high-pressure air or oxygen is used as the auxiliary gas, such as figure 1 As shown, when the lower surface of the cutting nozzle 12 is closer to the cutting surface, part of the melted material will accumulate on the inner wall of the cutting nozzle 12 . Such as figure 2 As shown, the longer the time, the more waste materials will accumulate, and eventually the dross 13 will cause the cutting nozzle 12 to be blocked, blocking the transmission of the laser beam, resulting in the cutting nozzle 12 not working normally. Affected by the processing technology...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/70B23K26/38
Inventor 魏志凌宁军高永强
Owner KUNSHAN THETA MICRO
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