Introduction
The automatic inspection system for surface defects of steel bars is a kind of high-tech inspection system for surface defects of steel bars combining carbon arc spraying technology. It can quickly detect and identify surface defects of steel bars, such as cracks, rust spots, indentation, scale, kinks, welding spots, overlapping layers, oxidation, etc. The automatic adjustment device for the defect location can automatically adjust the location of the defect according to the position of the defect measured by the CCD. The detection system is suitable for the detection of surface defects in steel bars, with good repeatability and stability, high efficiency and accuracy, and can provide reliable protection for steel bar processing enterprises.
Classification and Performance of Steel Bar Surface Defect Detection Equipment
1. Surface defect detection equipment based on traditional intelligent vision: This kind of equipment is mainly composed of image sensing components, image analysis components, image analysis and control components, with the help of CCD camera and image processing software, to detect and analyze the surface defects of the inspected steel bars, and the detection accuracy is higher, which can reduce the rate of defective products significantly;
2. Non-destructive surface defect detection equipment: This kind of equipment uses ultrasonic waves or X-ray inspection technology to detect the surface defects of steel bars to determine the presence and type of defects. Non-destructive testing requires the inspection equipment to have very good repeatability and accuracy, and the detection time for each steel bar is short and efficient.
3. Online surface defect detection equipment: This equipment is connected to the steel bar production line, which can ensure that the production process of steel bars conforms to the requirements and ensure the quality of steel bars. This equipment is equipped with a signal generator and signal testing and processing unit, which can accurately measure the size and shape of defects in real time and make appropriate responses.
Principle of Steel Bar Surface Defect Detection
1. Traditional intelligent vision technology: The traditional intelligent vision technology is based on CCD camera and image processing software. The CCD camera is used to capture the images of steel bars, and then the images are pre-processed with the image processing software. After that, the preset detection parameters and rules are used to analyze the data, and then the analysis results are output to the central control device. The presence or absence and type of surface defects are analyzed, and the location of defects is determined.
2. Non-destructive testing technology: Non-destructive testing technology is based on the theory of physical acoustics and electromagnetic waves. Ultrasonic waves or X-ray inspection technology is used to detect the surface defects of steel bars and determine the presence and type of defects. Ultrasonic waves or X-ray inspection systems can detect all kinds of surface defects, such as inclusions, cracks, overlapping layers, etc.
3. Online detection technology: The online detection technology is mostly used in steel bar surface defect detection equipment connected to the production line. The signal generator is used to generate sound signals or infrared signals, and then the signal is sent to the steel bar for detection. After the signal is reflected back, it is received and processed by the signal testing and processing unit. The size, shape and position of the surface defects of the steel bars can be obtained in real time, and then corresponding measures can be taken accordingly.
Conclusion
The application of automatic surface defect detection equipment for steel bars has provided reliable protection for the enterprises of steel bar processing, and completely improved the surface defect inspection quality of steel bars. The automatic detection equipment has many kinds of classification and performance, and the common ones are traditional intelligent vision technology, non-destructive testing technology and online detection technology. The traditional intelligent vision technology is mainly based on CCD camera and image processing software, and non-destructive testing technology is based on the theory of physical acoustics and electromagnetic waves. The online detection technology is mainly used in steel bar surface defect detection equipment connected to the production line. The automatic surface defect detection equipment ensures the quality of steel bars and reduces the rate of defective products, which is of great significance to the production process of steel bar processing enterprises.
