Device and method for detecting side surface of cylindrical object based on turntable assembly line

Abstract

The invention discloses a detection device and method for the side surface of a cylindrical object based on a turntable assembly line. The device includes a line scan camera, a turntable motor, a spin motor, a turntable motor encoder and a spin motor encoder, a PC host and a PLC controller. When the spin device of the shooting station completes one revolution, the line scan camera completes one frame The image is collected and sent to the PC host. The method includes the following steps: S1: start the line scan camera, and set parameters; S2: start the turntable motor; S3: judge whether the detected object has reached the detection station according to the pulse signal sent by the turntable motor encoder, and if the result is no, continue Rotate, if the result is yes, send a spin signal to control the rotation of the detected object, and at the same time send a signal for collecting images; S4: send the collected images to the host PC. The device and method for detecting the side surface of a cylindrical object based on a turntable assembly line have the advantages of low cost and high production efficiency.

Description

technical field [0001] The invention relates to machine vision technology, in particular to a detection device and method for the side surface of a cylindrical object based on a turntable assembly line. Background technique [0002] In recent years, with the development of machine vision technology, the use of machine detection instead of manual detection technology has become more and more mature, which not only liberates the labor force, improves production efficiency, but also greatly improves the detection accuracy. In the field of industrial production, the appearance of the product directly affects the quality of the product, and the inspection of the appearance of the product has become an inevitable and important link in the product production line. When performing product appearance inspection, area array cameras are often used on related equipment at present. When detecting circular outer surface objects, they usually take pictures from multiple groups of different...

AI Technical Summary

Problems solved by technology

When performing product appearance inspection, area array cameras are mostly used on related equipment at present. When detecting circular outer surface objects, they usually take pictures from multiple groups of different angles, and then combine the captured images for image processing. This detection method is used in When detecting cylindrical objects (such as bottle caps, etc.), it is generally necessary to take multiple sets of images to obtain a panoramic view. One method is to fix the area array camera and rotate the object to obtain a complete image from different angles. The array camera will inevitably shake when shooting moving objects, and the quality of the captured image cannot be guaranteed, which will seriously affect the subsequent image processing, and then affect the final result judgment; another way is to fix multiple area array cameras to shoot from different directions. Complete image, which increases the complexity of the equipment, and the cost of the equipment is high

Moreover, the above two methods need to merge multiple images taken by different cameras or multiple images taken by the same camera, which brings inconvenience to subsequent image processing.

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