The acquisition of grinding crack images of automotive gears mainly occurs in image acquisition devices in automotive transmission systems, which combine with CCD industrial cameras commonly used in machine vision to limit the sample size of the target automotive gears. The grinding crack image is required to have a focal length of 5mm, an aperture of F2.1, a ratio of the mounting height of the lens optical axis to the transfer turntable not exceeding 20mm, and a sample data size of 100 pixels × 300 pixels.
The CCD industrial camera uses an incandescent LED lamp as a circular light source, which can effectively avoid the impact of optical properties. The image acquisition device for grinding cracks in automotive gears is shown in the figure.