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Visual detector of laser machining system

A visual detection device and laser processing technology, which is applied in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of inability to detect in real time, insufficient detection accuracy of visual detection devices, and inability to meet clear imaging of large fields of view.

Active Publication Date: 2015-03-25
HANS LASER TECH IND GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nowadays, many electronic products need to be marked by laser. With the increasing demand for marking with laser, users' demand for laser marking machines is increasing, and the requirements for laser marking machines are also getting higher and higher. , if a laser marking machine with a laser vision system is used in production, since the laser marking machine with a laser vision system can realize automatic positioning, automatic focusing and automatic detection, it can be recognized by more users. There are two main ways for the visual detection device of the laser marking machine of the laser vision system: the coaxial visual detection device is used, the marking square head and the optical path of the imaging system are the same, this method can monitor the marking quality in real time, and the laser scanning head It can be marked and photographed at the same time with the camera, and it can be observed while marking, but the detection accuracy of the coaxial visual inspection device is not enough to meet the problem of clear imaging in a large field of view. Another way is to use the side-axis visual inspection The device, the camera and the marking square head are at a certain angle
This method is simple in design and does not need to change the existing marking square head structure. However, after marking with the laser scanning head, the marked workpiece needs to be moved to the camera position to take pictures, which cannot be detected in real time, and needs to be calibrated in advance. Location
Based on the cost requirements in the field of laser marking, as well as the requirements for marking accuracy and production efficiency, laser marking machines are facing challenges in terms of flexibility and full automation.

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  • Visual detector of laser machining system
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  • Visual detector of laser machining system

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Experimental program
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Embodiment 1

[0027] figure 1 A schematic diagram of a visual inspection device of a laser processing system provided by the first embodiment of the present invention is shown. For convenience of description, only parts related to the embodiment of the present invention are shown.

[0028] The laser processing system includes laser, laser head, focusing mirror and laser processing plane. By adding a reflector, an image acquisition system, and an illumination source to the laser processing system, the illumination source specifically includes: a coaxial light source, a ring light source, and the image acquisition system specifically includes: a lens and a camera; clear images are collected through the lens and the camera information to form an image acquisition system. In a specific implementation, the laser head is used to emit laser light, and the focusing mirror is used to focus the laser beam to perform laser processing on the laser processing object on the laser processing plane, and t...

Embodiment 2

[0031] Figure 4 A schematic diagram of a visual inspection device of a laser processing system provided by the second embodiment of the present invention is shown, and for convenience of description, only parts related to the embodiment of the present invention are shown.

[0032]In the specific implementation process, first test whether the laser processing object can be clearly imaged on the image acquisition system to ensure uniform illumination of the coaxial light source and ring light source on the laser processing plane. The ring light source can change the lighting angle of each bar light by rotating the rotation axis of each bar light in the ring light source, thereby changing the irradiation angle of the entire ring light, and the width of the bar light between each ring light can be adjusted. Change the width of the entire ring light by sliding the slider inward and outward, and the area illuminated by the entire ring light can be increased or decreased by changing...

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Abstract

The invention is applicable to the technical field of laser machining, and particularly relates to a visual detector of a laser machining system. The visual detector comprises an image acquiring system, a lighting source and a reflecting mirror, wherein the image acquiring system is used for acquiring images of laser machining objects on a laser machining plane, the lighting source is used for increasing luminance of the laser machining object on the laser machining plane, and the reflecting mirror is used for reflecting light emitted from the lighting source, so that the laser machining object on the laser machining plane can be imaged to the image acquiring system. The reflecting mirror is arranged between a focusing lens of the laser machining system and the machining plane, and the reflecting mirror can reflect images of the laser machining object to the image acquiring system. Meanwhile, a coaxial light source and an annular light source are arranged in front of the image acquiring device, so that the luminance of the laser machining object can be increased, real-time visual detection of the laser machining object can be realized.

Description

technical field [0001] The invention belongs to the technical field of laser operation detection, and in particular relates to a visual detection device of a laser processing system. Background technique [0002] Nowadays, many electronic products need to be marked by laser. With the increasing demand for marking with laser, users' demand for laser marking machines is increasing, and the requirements for laser marking machines are also getting higher and higher. , if a laser marking machine with a laser vision system is used in production, since the laser marking machine with a laser vision system can realize automatic positioning, automatic focusing and automatic detection, it can be recognized by more users. There are two main ways for the visual detection device of the laser marking machine of the laser vision system: the coaxial visual detection device is used, the marking square head and the optical path of the imaging system are the same, this method can monitor the ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/03
CPCB23K26/032
Inventor 舒远王光能闫静米野高云峰
Owner HANS LASER TECH IND GRP CO LTD