Welding seam tracking system and method of laser welding machine

A laser welding machine and tracking system technology, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve problems such as insufficient technical maturity, achieve the effect of improving technology level, reducing production cost, and reducing workload

Active Publication Date: 2014-04-30
SHENZHEN GDLASER TECH CO LTD
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  • Abstract
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Problems solved by technology

At this stage, domestic seam tracking technologies can be said to be of various types, such as mechanical tracking, photoelectric tracking, infrared tracking, etc., but most of the technologies are not mature enough, and there are many problems and deficiencies

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  • Welding seam tracking system and method of laser welding machine

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Embodiment Construction

[0017] The present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.

[0018] The invention discloses a laser welding machine seam tracking system, such as figure 1 As shown, it includes:

[0019] A CCD vision sensor 10, which is used to convert the light signal collected by it into image data which is serially output in time series, so as to obtain the image of the welding seam path, through which the CCD vision sensor 10 can realize high-speed and high-precision detection of the position of the welding seam Take pictures continuously to obtain the characteristic parameters such as the center position of the weld seam and the shape and size of the weld seam section.

[0020] An image processing module 20, which is connected to the CCD vision sensor 10, the image processing module 20 is used to preprocess the weld path image, calculate the actual weld path width and tracking direction, combine the detected workpiec...

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Abstract

The invention discloses a welding seam tracking system of a laser welding machine. A CCD (Charge Coupled Device) visual sensor is used for converting collected light signals into image data which is output in a serial mode according to the time sequence to obtain a welding seam path image; an image processing module is used for preprocessing the welding seam path image, calculating the actual welding seam path width and tracking direction and combining with the obtained workpiece height through detection to output actual welding track data; a main control module is used for processing the actual welding track data and sending out a control instruction according to the processing result; a numerical control driving module is used for executing the control instruction of the main control module to drive a lase welding head, adjusting the position of the laser welding head and controlling the welding action of the welding head. According to the welding seam tracking system and method of the laser welding machine, the automatic laser welding is achieved, the deviation is small, the accuracy is high, the welding quality is good, and the like.

Description

technical field [0001] The invention relates to laser welding and tracking technology, in particular to a laser welding machine seam tracking system and a seam tracking method. Background technique [0002] In the existing laser welding process, the moving path of the laser spot is programmed and set by the operator in the way of drawing points. This method has high requirements on the processing of the groove and the assembly accuracy of the workpiece, and the shape of some welds is difficult to express mathematically. Due to the subjective deviation of the operator when tracing the points, the welded parts are processed and clamped. There are dimensional deviations in the welding process, as well as the influence of multiple factors such as deformation caused by heat during the welding process, which causes a certain deviation between the actual welding seam trajectory and the welding seam trajectory, which has a direct impact on the stable completion of the welding proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/044
CPCB23K26/044
Inventor 黄品桦安业勋岳民栋张伟何林
Owner SHENZHEN GDLASER TECH CO LTD
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