CN215812460U

CN215812460U - Battery inner cavity defect detection device

Info

Publication number: CN215812460U
Application number: CN202121957633.3U
Authority: CN
Inventors: 伍强
Original assignee: Sichuan Qiruike Technology Co Ltd
Current assignee: Sichuan Qiruike Technology Co Ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-11
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses a battery inner cavity defect detection device, which comprises a camera, an optical lens, a light source and a control system, wherein the camera is used for detecting the defects of the inner cavity of a battery; the optical lens and the light source are arranged right above the battery to be detected, and the optical lens is opposite to the inner cavity of the battery; the optical lens is arranged on the camera, the camera is electrically connected with the control system, and the reflected light generated by the light source irradiating the inner cavity of the battery enters the camera through the optical lens. According to the utility model, light rays are emitted into the inner cavity of the battery to be detected through the light source, and reflected light rays reflected by the inner cavity of the battery are received and imaged through the optical lens and the camera, so that the surface condition of the inner cavity of the battery can be completely displayed at one time, the gluing defect, the pulp layer paper roll defect, the manganese ring defect and the zinc paste defect of the inner cavity of the battery can be imaged at one time, the incomplete imaging condition of the inner cavity of the battery caused by the combined imaging of a plurality of systems can be avoided, and the comprehensiveness and the accuracy of the detection are effectively improved; the utility model has simple structure, small occupied space and good imaging quality.

Description

Battery inner cavity defect detection device

Technical Field

The utility model relates to the technical field of battery production equipment, in particular to a battery inner cavity defect detection device.

Background

The detection of the defects of the inner cavity of the battery is a key process in the production link of the battery, and the quality of the finished product of the battery is directly influenced. At present, the defects of the inner cavity of the battery are generally detected by adopting a manual spot inspection mode in the industry, and the manual spot inspection has the following defects: 1. professional visual inspection personnel need to be trained, and the labor cost is high; 2. the subjectivity of manual visual inspection is high, the judgment capability of visual inspection personnel is directly influenced by factors such as self emotion and physical condition, and false inspection and missed inspection are easy to occur; 3. the manual visual inspection is a post-processing procedure, and has no positive influence on the optimization of the whole real-time process flow.

In order to overcome the defect of manual visual inspection, more and more manufacturers begin to adopt an automatic quality inspection scheme, but the existing automatic quality inspection scheme also has the following defects: 1. the space occupied by the image acquisition system is large, and the complete imaging of the inner cavity of the battery cannot be ensured; 2. blocky light reflection easily occurs in the detection process, so that false detection and missed detection are caused.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the battery inner cavity defect detection device can comprehensively and accurately acquire the surface image of the battery inner cavity.

In order to solve the technical problems, the utility model adopts the technical scheme that: the battery inner cavity defect detection device comprises a camera, an optical lens, a light source and a control system; the optical lens and the light source are arranged right above the battery to be detected, and the optical lens is opposite to the inner cavity of the battery; the optical lens is arranged on the camera, the camera is electrically connected with the control system, and the reflected light generated by the light source irradiating the inner cavity of the battery enters the camera through the optical lens.

Further, the method comprises the following steps: one surface of the light source facing the battery is an inclined plane or an arc surface with an angle.

Further, the method comprises the following steps: the angle range of the upper inclined plane or the cambered surface of the light source is 0-90 degrees.

Further, the method comprises the following steps: the light source is a ring light source or a surface light source, and the optical lens penetrates through the center of the light source.

Further, the method comprises the following steps: also included is a display mounted on and electrically connected to the camera.

Further, the method comprises the following steps: the displacement sensor is arranged on the optical lens and is electrically connected with the control system.

Further, the method comprises the following steps: the displacement sensor is a proximity inductive switch or a photoelectric inductive switch.

The utility model has the beneficial effects that: according to the utility model, light rays are emitted into the inner cavity of the battery to be detected through the light source, and reflected light rays reflected by the inner cavity of the battery are received and photographed for imaging through the optical lens and the camera, so that the surface condition of the inner cavity of the battery can be completely displayed at one time, the gluing defect, the pulp layer paper roll defect, the manganese ring defect and the zinc paste defect of the inner cavity of the battery can be imaged at one time, the incomplete imaging condition of the inner cavity of the battery caused by the combined imaging of a plurality of systems can be avoided, and the comprehensiveness and the accuracy of the detection can be effectively improved; the utility model has simple structure, small occupied space and good imaging quality.

Drawings

FIG. 1 is a schematic structural view of the present invention;

labeled as: 100-camera, 200-optical lens, 300-light source, 400-battery, 500-display.

Detailed Description

In order to facilitate understanding of the utility model, the utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1, the device for detecting defects in an inner cavity of a battery disclosed in the present invention includes a camera 100, an optical lens 200, a light source 300 and a control system, wherein the light source 300 is configured to emit light into an inner cavity of the battery 400 to be detected, the optical lens 200 is configured to receive reflected light reflected by the inner cavity of the battery 400 and transmit the signal to the camera 100, the control system is configured to receive the signal transmitted by the optical lens 200 and issue a photographing command to the camera 100, and the camera 100 is configured to photograph and image the surface of the inner cavity of the battery 400 to be detected; the control system can adopt a PLC control system commonly used in the industry, and only the judgment program of the control system needs to be modified to adapt to the working principle of the utility model. When detecting the defects of the inner cavity of the battery 400, the optical lens 200 and the light source 300 are arranged right above the battery 400 to be detected, the optical lens 200 is right opposite to the inner cavity of the battery 400, the optical lens 200 is arranged on the camera 100, and the camera 100 is electrically connected with a control system; the camera 100, the optical lens 200, and the light source 300 may be fixed by a bracket-like structure, so that the camera 100, the optical lens 200, and the light source 300 are suspended above the battery 400.

In order to improve the imaging comprehensiveness and accuracy of the utility model, the surface of the light source 300 facing the battery 400 is an inclined plane or an arc surface with an angle, the surface of the light source 300 is inclined towards the battery 400, the angle range of the inclined plane or the arc surface is 0-90 degrees, and the specific angle is selected according to the actual detection requirement. By limiting the angle of the light source 300, the light source 300 can irradiate the inner cavity surfaces of the batteries 400 with different specifications, so that the optical lens 200 can realize all-around imaging of the inner wall and the bottom of the battery 400 without extending into the inner cavity of the battery 400. When the light source 300 is arranged, the light source 300 adopts an LED light source and is set as a ring light source or a surface light source in consideration of the relative position relationship between the light source 300 and the optical lens 200, the optical lens 200 penetrates through the center of the light source 300, the light source 300 emits light rays from the periphery of the optical lens 200 to the inner cavity of the battery 400 according to the angle of the reflected light rays, the optical lens 200 receives the reflected light rays at the central position, and the optical lens 200 can receive all the reflected light rays, so that the imaging is more complete.

The display 500 is further arranged in the utility model, the display 500 is arranged on the camera 100 and is electrically connected with the camera 100, the camera 100 can transmit image signals to the display 500 after taking a picture, and the display 500 displays the image of the inner cavity of the battery taken by the camera 100, so that a worker can conveniently observe the image in real time.

Furthermore, the utility model is also provided with a displacement sensor to monitor whether the battery 400 is in place so as to realize the automatic starting of the battery inner cavity defect detection device. The displacement sensor is arranged on the optical lens 200 and electrically connected with the control system, and the displacement sensor can adopt a proximity inductive switch or a photoelectric inductive switch; when the proximity inductive switch is adopted, the proximity inductive switch monitors the distance from the battery 400 to the sensing surface of the proximity inductive switch, when the battery 400 is placed in place, the distance from the battery 400 to the sensing surface of the proximity inductive switch reaches the set sensing distance, the proximity inductive switch outputs a signal to the control system, and the control system issues a working command to the light source 300, the optical lens 200 and the camera 100; when the photoelectric sensing switch is used, the photoelectric sensing switch judges whether the battery 400 is placed in place according to the shielding or reflection of the battery 400 to the light beam, when the battery 400 is placed in place, the photoelectric sensing switch outputs a signal to the control system, and the control system issues a work command to the light source 300, the optical lens 200 and the camera 100.

When the battery 400 is detected by adopting the battery inner cavity defect detection device, the battery 400 to be detected is placed under the optical lens 200, so that the optical lens 200 is vertically opposite to the inner cavity of the battery 400; the displacement sensor senses that the battery 400 is in place and outputs a signal to the control system, the control system controls the light source 300 to be turned on, the light source 300 irradiates the inner cavity of the battery 400, light is reflected by the inner cavity of the battery 400 and then is received by the optical lens 200 and then is transmitted to the camera 100, the control system controls the camera 100 to take pictures and image, an image signal is transmitted to the display 500, and the display 500 displays a complete imaging image.

Claims

1. Battery inner chamber defect detection device, its characterized in that: comprises a camera (100), an optical lens (200), a light source (300) and a control system; the optical lens (200) and the light source (300) are arranged right above the battery (400) to be detected, and the optical lens (200) is opposite to the inner cavity of the battery (400); the optical lens (200) is installed on the camera (100), the camera (100) is electrically connected with the control system, and the reflected light generated by the light source (300) irradiating the inner cavity of the battery (400) enters the camera (100) through the optical lens (200).

2. The battery cavity defect detection device of claim 1, wherein: one surface of the light source (300) facing the battery (400) is an inclined plane or an arc surface with an angle.

3. The battery cavity defect detection device of claim 2, wherein: the angle range of the upper inclined plane or the cambered surface of the light source (300) is 0-90 degrees.

4. The battery cavity defect detecting device according to claim 2 or 3, wherein: the light source (300) is a ring light source or a surface light source, and the optical lens (200) penetrates through the center of the light source (300).

5. The battery cavity defect detection device of claim 1, wherein: also included is a display (500), the display (500) being mounted on the camera (100) and electrically connected to the camera (100).

6. The battery cavity defect detection device of claim 1, wherein: the displacement sensor is arranged on the optical lens (200) and is electrically connected with the control system.

7. The battery cavity defect detection device of claim 6, wherein: the displacement sensor is a proximity inductive switch or a photoelectric inductive switch.