Annular workpiece size measurement and defect detection method and device

Abstract

The invention discloses an annular workpiece size measurement and defect detection method and device. The method comprises the steps that after a system is started, a circular ring workpiece enters a rotating disc; an optical fiber sensor monitors the rotating disc, and a trigger signal is generated when the workpiece passes; the trigger signal is respectively sent to the corresponding imaging and image collecting stations; and after the imaging and image collecting stations obtain images, original images are sent to a software platform, the software platform carries out detection through the algorithm detection modules according to the images of the stations. The detection speed is high, the working speed can reach 500 per minute, the detection result robustness is good, stability is high, and the device can continuously work for more than 12 hours; and at present, on an annular workpiece production line, the detection method can measure the size of the circular ring workpiece and detect the annular workpiece at a high speed, and the detection speed, accuracy, stability and repeatability have great advantages in the market.

Description

technical field [0001] The invention relates to the field of workpiece manufacturing and processing, in particular to a ring-shaped workpiece size measurement and defect detection method and device. Background technique [0002] The existing relevant detection methods in the market have a low detection speed for ring-shaped workpieces, or the detection speed is sufficient but the measurement accuracy is not high, and the circle cannot be accurately identified, and the accuracy rate is insufficient, so it cannot be applied to an automated production line. The method utilizes the image processing technology to better realize the accurate measurement of the surface size, height measurement and surface defect detection of the ring-shaped workpiece in the rapid production scene. Contents of the invention [0003] Aiming at the technical problems of the prior art, the present invention discloses a ring-shaped workpiece size measurement and defect detection method and device. The...

AI Technical Summary

Problems solved by technology

[0002] The existing relevant detection methods in the market have a low detection speed for ring-shaped workpieces, or the detection speed is sufficient but the measurement accuracy is not high, and the circle cannot be accurately identified, and the accuracy rate is insufficient, so it cannot be applied to the automated production line.

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