Small Modulus Injection Gear Size Inspection Method Based on Super Resolution

Accurate gear parameter inspection technology can effectively improve the quality of gear production. In order to obtain more accurate detection results, the quality of the detection image must be controlled. However, there is a lack of optimization of image accuracy in the existing gear size detection methods. Consequently, this article proposes a super-resolution (SR)-based dimensional detection method for small modulus injection molding gears. The method introduces an improved SR algorithm for small modulus injection molding gears, constructs a size detection system, effectively enhances the quality of the image of the measured gear through image processing, and then calculates the value of the measured gear’s precision parameters according to the definition of gear precision parameters. The experimental results show that the standard deviation of the bore diameter and the toothed circle diameter are 0.756 and
$1.531 \mu \text{m}$
respectively, and the repeat errors of the repeated measurements are less than
$2 \mu \text{m}$
. Therefore, the research results of this article provide a new detection method for related industries, which is of positive significance for improving production efficiency and quality.