Power battery sealing nail welding detection device and method

A welding detection and power battery technology, applied in the direction of measuring devices, electrical components, optical testing defects/defects, etc., to achieve the effect of improving accuracy, improving product quality consistency, and reducing manual re-inspection

Pending Publication Date: 2021-11-12
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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Problems solved by technology

[0003] In order to solve the misjudgment caused by the image bump noise caused by the abnormal refraction of the laser light path caused by the existing 3D camera detection after sealing nail welding, the present invention proposes a power battery sealing nail welding detection device and method, and the specific scheme is as follows:

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  • Power battery sealing nail welding detection device and method
  • Power battery sealing nail welding detection device and method
  • Power battery sealing nail welding detection device and method

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Embodiment Construction

[0024] Such as Figure 1-2 As shown, a power battery sealing nail welding detection device includes an image acquisition part and an image processing part, and the image acquisition part includes a 3D camera 1, a motion assembly that drives the 3D camera 1 to rotate and move, a support frame 7, and a base 10, The support frame 7 is used to support the motion assembly, the support frame 7 and the battery 9 used for detection are fixed on the base 10, and the 3D camera 1 scans the battery 9 to be detected multiple times under the action of the motion assembly, Realize welding bead defect detection. The image processing part is connected to the data terminal of the 3D camera 1 for processing the scanned image.

[0025] Specifically, the moving assembly includes a rotating unit and a horizontal moving unit, the rotating unit includes a rotating cylinder 2 fixed on the transition plate 3, and the rotating cylinder 2 drives the camera to rotate. Optimally, the 3D camera 1 is fixed...

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Abstract

The invention discloses a power battery sealing nail welding detection device and method, the device comprises an image acquisition part and an image processing part, the image acquisition part comprises a 3D camera, a motion assembly for driving the 3D camera to rotate and move, a support frame and a base, the support frame is used for supporting the motion assembly, the support frame and a battery for detection are fixed on the base, the 3D camera scans the battery to be detected for multiple times under the action of the motion assembly, and the image processing part is connected with the data end of the 3D camera and used for processing scanned images. According to the invention, the 3D camera is adopted for detection, so that the welding projection height and the concave depth of a sealing nail can be detected.

Description

technical field [0001] The invention belongs to the technical field of lithium ion batteries, and in particular relates to a power battery sealing nail welding detection device and method. Background technique [0002] At present, after the liquid injection of lithium-ion batteries is completed, in order to avoid liquid leakage, the liquid injection port is sealed by welding sealing nails. The welding effect is currently becoming a difficult point in the industry. In order to detect the welding effect of sealing nails, 2D area array cameras are generally used for detection, but the detection efficiency is not ideal and cannot meet the process requirements. Some manufacturers use 3D cameras for detection, but the detection results still do not meet the requirements, mainly because the 3D cameras are used during detection. , because there is a groove inside the welding bead of the sealing nail, which causes the abnormal refraction of the laser light path of the 3D camera, thus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88H04N13/296H04N13/106
CPCG01N21/8851H04N13/296H04N13/106G01N2021/8887
Inventor 黄立军杨中舒刘磊程辉
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY
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