Battery cell skirt edge cracking detection method and visual detection device

A technology of visual detection device and detection method, which is applied in the direction of measuring device, optical test for defects/defects, image enhancement, etc., which can solve problems such as failure to detect cracked defective products, battery quality problems, and low production efficiency, so as to improve detection Accuracy, stable positioning measurement function, stable effect of processing logic
CN113552133AActive Publication Date: 2021-10-26GUANGDONG LYRIC ROBOT INTELLIGENT AUTOMATION CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG LYRIC ROBOT INTELLIGENT AUTOMATION CO LTD
Publication Date
2021-10-26

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Abstract

The invention relates to the technical field of battery cell detection, in particular to a battery cell skirt edge cracking detection method and a visual detection device, by processing a battery cell image, n point locations of a skirt edge line segment and fitting a battery cell side edge straight line are obtained, whether the skirt edge cracks or not is detected and judged by detecting the distance from the skirt edge to the side edge of the battery cell main body, the detection accuracy is improved by using the method, the method has the advantages of good interactivity, strong anti-interference capability, stable detection system and stable machine vision image processing logic, and the detection efficiency is high. Meanwhile, accurate and clear pictures can be obtained through a visual detection device and a battery cell image obtaining method, the stable positioning measurement function is achieved, the cracking condition of the battery cell skirt edge can be accurately detected through the obtained images, the battery cell production quality is guaranteed, and the detection efficiency is improved.
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Description

technical field

[0001] The present application relates to the technical field of cell detection, in particular to a method for detecting cracks in the skirt of a cell and a visual detection device. Background technique

[0002] In the production process of lithium batteries, it is necessary to fold and shape the skirt of the packaged soft-packed battery. After the skirt is bent, the folded skirt may crack, that is, the folded skirt and the The gap between the cell bodies is too large. In the prior art, manual visual inspection is used to pick out defective cells with cracked skirts. However, due to the small gap between the skirt and the main body of the cell, manual visual inspection is inaccurate and cannot detect cracks. Good battery cells cause quality problems in the production process and lead to low production efficiency. Contents of the invention

[0003] In order to solve the above technical problems, the present application provides a method for detecting crack...

Claims

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