CN-224222039-U - Quick detection device of battery piece outward appearance defect

CN224222039UCN 224222039 UCN224222039 UCN 224222039UCN-224222039-U

Abstract

The utility model discloses a rapid detection device for appearance defects of battery pieces, which comprises a rack, a conveying mechanism arranged on the rack, a visual detection mechanism arranged above the conveying mechanism and a control system electrically connected with the visual detection mechanism, wherein the conveying mechanism comprises a conveying belt driven by a servo motor and limit baffles arranged on two sides of the conveying belt, anti-skidding bulges are uniformly distributed on the surface of the conveying belt, and a pneumatic sorting valve is arranged below the conveying belt corresponding to the visual detection mechanism. Through optimizing the collaborative design of the conveying mechanism, the visual detection mechanism and the control system, the detection efficiency and the accuracy of the appearance defects of the battery piece are effectively improved, and the method has important practical application value.

Inventors

LIU LEI
FENG JINGFEI

Assignees

东莞市摩尔智能科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250605

Claims (6)

1. The quick detection device for the appearance defects of the battery pieces comprises a frame, a conveying mechanism arranged on the frame, a visual detection mechanism arranged above the conveying mechanism and a control system electrically connected with the visual detection mechanism, and is characterized in that the conveying mechanism comprises a conveying belt driven by a servo motor and limit baffles arranged on two sides of the conveying belt, anti-skidding bulges are uniformly distributed on the surface of the conveying belt, and a pneumatic sorting valve is arranged below the conveying belt corresponding to the visual detection mechanism; the visual detection mechanism comprises a first high-speed camera and a second high-speed camera which are sequentially arranged along the transmission direction of the battery piece, wherein the first high-speed camera is used for collecting front images of the battery piece, and the second high-speed camera is used for collecting side images of the battery piece; The both sides of conveyer belt are provided with light source module, light source module includes visible light LED array and shortwave infrared light source, visible light LED array with first high-speed camera cooperation is used, shortwave infrared light source with the cooperation of second high-speed camera is used.
2. The rapid detection device for appearance defects of battery pieces according to claim 1, wherein the frame is further provided with a code scanning module located at an inlet end of the conveyor belt, and the code scanning module is electrically connected with the control system.
3. The rapid detection device for appearance defects of a battery piece according to claim 1, wherein the visual detection mechanism further comprises a multispectral optical filter switching mechanism arranged between the first high-speed camera and the second high-speed camera, and the multispectral optical filter switching mechanism comprises a driving motor and at least three optical filters with different wavelengths.
4. The rapid detection device for appearance defects of a battery piece according to claim 1, wherein the light source module further comprises a diffuse reflection plate arranged between the visible light LED array and the short-wave infrared light source, and a high-reflectivity coating is sprayed on the surface of the diffuse reflection plate.
5. The rapid detection device for appearance defects of battery pieces according to claim 1, wherein the control system comprises an FPGA real-time processing unit, an edge calculation module with a built-in deep learning model, an alarm module and a sorting control module, wherein the alarm module is connected with the edge calculation module, the FPGA real-time processing unit is used for preprocessing images acquired by the first high-speed camera and the second high-speed camera, the edge calculation module is used for carrying out defect identification based on the preprocessed images, the alarm module is used for sending out an acousto-optic alarm when defects are detected, and the sorting control module is used for controlling a pneumatic sorting valve.
6. The rapid detection device for appearance defects of battery pieces according to claim 1, wherein limit baffles on two sides of the conveyor belt are elastic baffles with adjustable intervals, pressure sensors are arranged on the inner sides of the limit baffles, and the pressure sensors are electrically connected with the control system.

Description

Quick detection device of battery piece outward appearance defect Technical Field The utility model relates to the technical field of battery detection, in particular to a device for rapidly detecting appearance defects of a battery piece. Background Along with the large-scale development of the battery industry, higher requirements are put on the speed, the precision and the automation degree of detecting the appearance defects of the battery piece. In the production process of the battery piece, appearance defect detection is a key link for ensuring the quality of the product. The traditional manual detection mode relies on visual observation, and has the problems of low detection efficiency, strong subjectivity, high omission factor, incapability of adapting to high-speed assembly line production and the like. The existing automatic detection equipment introduces a visual detection technology, but has the defects that firstly, a detection mechanism only detects the front face of a battery piece, and the identification capability of opposite side defects (such as hidden cracks, layering and the like) is insufficient, secondly, the light source configuration is single, imaging requirements of different defect types are difficult to consider, the image quality is unstable, thirdly, an image processing algorithm is behind, complex defects cannot be accurately identified, the sorting process depends on manual intervention, and the intelligent degree is low. Disclosure of utility model In order to overcome the defects of the prior art, the utility model provides a rapid detection device for appearance defects of a battery piece, which can effectively solve the problems of the prior art. The technical scheme adopted for solving the technical problems is as follows: The utility model provides a quick detection device of battery piece outward appearance defect, includes the frame, sets up transport mechanism in the frame, be located transport mechanism top visual detection mechanism and the control system who is connected with visual detection mechanism electricity, transport mechanism includes servo motor driven conveyer belt and sets up limit baffle in the conveyer belt both sides, the conveyer belt surface evenly distributed has the non-slip raised, the conveyer belt corresponds the below of visual detection mechanism and is equipped with pneumatic sorting valve; the visual detection mechanism comprises a first high-speed camera and a second high-speed camera which are sequentially arranged along the transmission direction of the battery piece, wherein the first high-speed camera is used for collecting front images of the battery piece, and the second high-speed camera is used for collecting side images of the battery piece; The both sides of conveyer belt are provided with light source module, light source module includes visible light LED array and shortwave infrared light source, visible light LED array with first high-speed camera cooperation is used, shortwave infrared light source with the cooperation of second high-speed camera is used. As a further description of the technical scheme, the frame is further provided with a code scanning module located at the inlet end of the conveyor belt, and the code scanning module is electrically connected with the control system. As a further description of the above technical solution, the visual detection mechanism further includes a multispectral optical filter switching mechanism disposed between the first high-speed camera and the second high-speed camera, where the multispectral optical filter switching mechanism includes a driving motor and at least three optical filters with different wavelengths. As a further description of the above technical solution, the light source module further includes a diffuse reflection plate disposed between the visible light LED array and the short-wave infrared light source, and a high-reflectivity coating is sprayed on a surface of the diffuse reflection plate. As a further description of the above technical solution, the control system includes an FPGA real-time processing unit, an edge computing module with a built-in deep learning model, an alarm module connected with the edge computing module, and a sorting control module, where the FPGA real-time processing unit is configured to preprocess images collected by the first high-speed camera and the second high-speed camera, the edge computing module is configured to perform defect recognition based on the preprocessed images, the alarm module is configured to send out an audible and visual alarm when a defect is detected, and the sorting control module is configured to control a pneumatic sorting valve. As further description of the technical scheme, the limit baffles on two sides of the conveyor belt are elastic baffles with adjustable intervals, and pressure sensors are arranged on the inner sides of the limit baffles and are electrically connected with the control system.