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Machine vision encounter laser seam tracking detection

Machine vision encounter laser seam tracking detection

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  • Time of issue:2019-06-11
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(Summary description)Machine vision encounter laser seam tracking detection: Human beings observe and understand the world through eyes. Machine vision is the "eye" on the machine, which is the visual organ of machine perception of the world.

Machine vision encounter laser seam tracking detection

(Summary description)Machine vision encounter laser seam tracking detection: Human beings observe and understand the world through eyes. Machine vision is the "eye" on the machine, which is the visual organ of machine perception of the world.

  • Categories:Company news
  • Author:
  • Origin:
  • Time of issue:2019-06-11
  • Views:0
Information

【 Abstract 】 : Machine vision encounter laser seam tracking detection: human beings observe and understand the world through eyes. Machine vision is the "eye" on the machine, the visual organ of machine perception of the world.

Machine vision encounter laser weld tracking detection: through the human eye to see and know the world, pop, machine vision is "eyes", the machine body is a machine visual sense organs, machine vision can perceive the world, and interact with the external world relations, so as to realize automatic and intelligent, therefore, machine vision is becoming the core of artificial intelligence technology in the future. We are using machine vision to realize the automation of laser seam tracking and detection, seize the new round of technological peaks, and create new samples of intelligent manufacturing in the industry 4.0 era.

Seize the new opportunity of Industry 4.0: Machine Vision usher in the golden development period of the industry

With the structure adjustment and transformation and upgrading of China's traditional manufacturing industry, the tall, precision, automation and intelligent is the new trend of manufacturing development, laser laser welding technology in the industry, for example, in laser welding, the welding torch welding after focusing the laser beam spot diameter small, generally less than 0.3 mm, because the laser welding has the characteristics of nonlinear, time-varying and interference factors, the welding process workpiece heat cause weld deformation, if the wrong welding process control measures, the laser beam focus easily deviate from the actual position of weld, welding results in the decrease of welding quality and even failure, This requires that the actual deviation of the welding seam can be detected in real time during the welding process, and the deviation can be fed back and dynamically adjusted in real time, so as to achieve full closed-loop control and ensure the welding quality. Therefore, the automatic detection and tracking of welding seams in laser welding has become a pain point to be solved in the field of laser welding automation.

With many years of experience in the laser industry, he has a deep understanding of this. In the process of exploring solutions to the pain points in this industry, he met two like-minded entrepreneurial partners in the field of industrial automation, Yi Xi and Xie Jun. Due to many years of research experience in the field of automation and industry experience, they will look to the machine vision, because the machine vision to realize the characteristics of workpiece size, shape, color and so on automatic judgment and recognition, measurement and judgment, can let the machine instead of human eyes do machine vision with high automation, high efficiency, high precision, strong stability, can adapt to the dangerous environment, wide range of photographic incomparable advantages, such as artificial visual means is to realize the industrial automation and intelligent. Therefore, they all agree that machine vision is the cutting-edge technology of laser seam automatic detection and tracking. Therefore, they are committed to the development of machine vision technology and provide industry system solutions at the right moment.

According to the market research report, the size of the machine vision market in 2015 was 8.08 billion US dollars, and it will reach 12.5 billion US dollars in 2020, among which the size of the national machine vision market in 2015 was 6.12 billion YUAN, and the size of the national machine vision market in 2020 will reach 15.2 billion yuan, with a year-on-year growth rate of 28.57%. It can be said that the machine vision market ushered in the golden period of industry development.

Focus on the technology frontier: to create the national core and standard of machine vision technology

Machine vision or image by computer processors and related equipment to simulate human visual function, to process the image to extract information from the objective things, in order to let the machine get the visual information, and try to understand, used in the actual detection and control, etc, will be the future can truly realize interconnection and the key of intelligent manufacturing, all involved in artificial intelligence, neural biology, computer science, image processing, pattern recognition, and many other areas, is the interdisciplinary field of integrated innovation.

 睿牛机器人

At present, the machine vision industry includes the upstream parts-level market, the midstream system integration/complete machine equipment market and the downstream application market. Although the industry is just starting, the competition is extremely fierce, and the Internet and semiconductor giants have been layout, showing that intelligent image processing will be the next arena. In the future, if we fall behind in this field, we will be subject to foreign countries and can only become foreign machine vision top secondary application developers and product agents. Moreover, due to high costs, we cannot complete the transformation and upgrading of domestic manufacturing industry, let alone intelligent manufacturing.

In order to conquer the core technology in the field of machine vision, and machine vision expert at the university of wuhan formed a research and development team, further electronic communications, signal/image processing, computer vision, pattern recognition, big data, intelligent manufacturing, Internet of things, such as basic subjects of crossover study, and closely tracking the forefront of machine vision technology trends at home and abroad, to originality of scientific research achievements into productivity.

"Our core competitiveness lies in our cooperation with domestic technology research and development teams, which occupy the commanding heights in the underlying core components of machine vision and intelligent analysis of deep algorithms." The person in charge said. "Only by adhering to independent innovation and obtaining original achievements in machine vision technology can we truly create a national core of machine vision technology, and then further develop standards based on this, and then continue to promote its wide application in the manufacturing industry."

Development of industry applications: machine vision encounter laser weld tracking detection results

The machine vision technology research and development is inspired by the laser welding seam automation, and "machine vision-laser welding seam automatic tracking and detection system" is developed centering on the two fields of machine vision and laser welding seam tracking and detection for cross-border innovation.

The system choose laser vision sensor for weld automatic tracking system of sensor, with initiative, non-contact, can obtain the 3 d information, high precision and strong ability to resist the electromagnetic interference, sensitivity etc, and joint surface information collected through image acquisition card input to the computer, and then process the information through the computer analysis control signal, and through the movement control CARDS will control signal to the stepper motor drive the two axes of the traveling mechanism, to control the movement of the welding torch.

It is understood that the innovation of the system is mainly reflected in three aspects, including the realization of 3D vision's high-precision positioning of the weld, 3D vision's weld quality detection, and high-precision servo system's realization of real-time control of the weld tracking process. Two core technical indicators have reached the leading position. One is the image accuracy, with the depth reaching 0.02mm and the transverse reaching 0.02mm. The other is the control accuracy of the servo system, whose positioning accuracy reaches 10um and positioning speed reaches 10m/min.

"In fact, to truly realize intelligence, the manufacturing industry still needs to accumulate the data in the operation process of the automatic system and form industrial big data. Through the analysis of these data, the data will be fed back to the system and modified constantly, so as to make the operation of the whole system more intelligent. Therefore, intelligent manufacturing of big data services is also an important direction for us in the future, "explained the company's director.

At present, machine visions-laser weld tracking and detection system is not only used in automobile manufacturing industry, but also widely used in the welding of oil and natural gas pipelines, and the welding and processing of rocket and spacecraft parts, which will play an important role in promoting China's high-precision manufacturing industry. With the further development of machine vision industry, from industrial visual to computer vision, human-computer interaction to self-driving, from virtual reality to automatic object recognition, machine vision plays an important role, will adhere to independent innovation and to expand the market application, assisted by machine vision 2025 plan of the industry in China as soon as possible.

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