Detection jig, battery cell appearance detection equipment and battery cell appearance detection system

Abstract

The utility model relates to the field of battery cell detection, in particular to a detection jig, battery cell appearance detection equipment and a battery cell appearance detection system. The detection jig is used for detecting the appearance of a battery cell and comprises a base, a plurality of rolling shafts and a driving device, the adjacent rolling shafts are arranged in parallel at equal intervals and are used for placing battery cells; the two ends of the rolling shaft are movably connected to the base; the driving device is used for driving the rolling shafts to rotate in the same direction. According to the detection jig, a plurality of battery cells can be placed at the same time, in the battery cell handover process, the material falling risk is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of battery cell testing, and in particular to a testing fixture, battery cell appearance testing equipment, and battery cell appearance testing system. Background Technology

[0002] During the cell appearance inspection process, it is often necessary to rotate the cell to perform a complete inspection of its appearance, which requires a special inspection fixture. Therefore, before the cell appearance inspection process, the cell needs to be switched from its position in the previous process to the special inspection fixture.

[0003] In existing technologies, this special testing fixture is often used in multiple sets, with each set only able to hold one battery cell. When multiple sets are used together, the width of each fixture and the spacing between them necessitate adjusting the spacing when switching the battery cell to a new fixture, thus increasing the risk of material falling out. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a suction detection fixture, a battery cell appearance inspection device, and a battery cell appearance inspection system to reduce the risk of contamination and improve the inspection efficiency.

[0005] To address the aforementioned issues, in a first aspect, this application provides a testing fixture for inspecting the appearance of battery cells, comprising a base, several rollers, and a driving device; adjacent rollers are arranged in parallel with equal spacing for placing battery cells; both ends of the rollers are movably connected to the base; the driving device is used to drive the several rollers to rotate in the same direction.

[0006] In the above technical solution, the testing fixture of this application can place multiple battery cells at the same time, which reduces the risk of material dropping and improves production efficiency during the battery cell handover process.

[0007] In some embodiments, a plurality of sensors are also included, the sensors being fixed to the base and disposed between adjacent rollers.

[0008] In the above technical solution, sensors are used to confirm whether there is material loss in the battery cell, thereby improving the efficiency of detection.

[0009] In some embodiments, the sensor is a photoelectric sensor, and the center of the emitted beam of the sensor corresponds to the axis of the battery cell.

[0010] In the above technical solution, a photoelectric sensor is used to ensure high-precision detection, and the center of its emitted beam corresponds to the axis of the battery cell to avoid errors.

[0011] In some embodiments, the base is provided with a mounting cover, and the sensor is disposed inside the mounting cover.

[0012] In the above technical solution, the mounting cover can protect the sensor from external interference, extend its service life, and improve its stability.

[0013] In some embodiments, the driving device is a motor, which is fixed to the base; adjacent rollers are driven by a belt or chain.

[0014] The above technical solution can achieve synchronous rotation of multiple rollers, ensuring consistency of work.

[0015] In some embodiments, the driving device is a plurality of motors, each motor corresponding to one roller.

[0016] The above technical solutions enable precise control and adjustment, improving the system's flexibility and response speed.

[0017] Secondly, this application provides a battery cell appearance inspection device, including an inspection camera and the aforementioned inspection fixture; the inspection fixture is located within the field of view of the inspection camera.

[0018] In the above technical solution, the testing fixture can place multiple battery cells at the same time, which reduces the risk of material falling during the battery cell handover process, thereby improving the testing efficiency of the battery cell appearance testing equipment of this application.

[0019] Thirdly, this application provides a battery cell appearance inspection system, including an inspection channel and the aforementioned battery cell appearance inspection equipment; the inspection fixture is provided with a slide, and the inspection channel is provided with a track that matches the slide.

[0020] In the above technical solution, the inspection fixture can place multiple battery cells at the same time, which reduces the risk of material falling during the battery cell handover process, thereby improving the inspection efficiency of the battery cell appearance inspection system of this application.

[0021] In some embodiments, a feeding mechanism is further included, which is located upstream of the cell appearance inspection equipment; the cell spacing within the feeding mechanism is consistent with the cell spacing within the inspection fixture.

[0022] The above technical solution ensures that the battery cells enter the testing area accurately and quickly, reducing the risk of material loss and improving the smoothness and efficiency of the testing process.

[0023] In some embodiments, a feeding mechanism is further included, which is located downstream of the cell appearance inspection equipment; the cell spacing within the feeding mechanism is consistent with the cell spacing within the inspection fixture.

[0024] The above technical solution ensures the smooth flow of the battery cells after testing, avoids jamming, and improves overall work efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a testing fixture according to an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the structure of a battery cell appearance inspection system according to an embodiment of this application. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0031] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0032] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] During the cell appearance inspection process, it is often necessary to rotate the cell to perform a complete inspection of its appearance, which requires a special inspection fixture. Therefore, before the cell appearance inspection process, the cell needs to be switched from its position in the previous process to the special inspection fixture.

[0035] In existing technologies, this special testing fixture is often used in multiple sets, with each set only able to hold one battery cell. When multiple sets are used together, the width of each fixture and the spacing between them necessitate adjusting the spacing when switching the battery cell to a new fixture, thus increasing the risk of material falling out.

[0036] To address the issue of material loss during the current battery cell appearance inspection process, the following is a summary... Figure 1 This application will be described in detail.

[0037] To address the aforementioned issues, this application provides a testing fixture for inspecting the appearance of battery cells.

[0038] The testing fixture of this application includes a base 10, a plurality of rollers 20, and a drive device 30. Adjacent rollers 20 are arranged in parallel with equal spacing and are used to hold battery cells 90. The two ends of each roller 20 are movably connected to the base 10. The drive device 30 is used to drive the plurality of rollers 20 to rotate in the same direction.

[0039] In this process, the battery cells 90 are placed between adjacent rollers 20, which are arranged parallel to each other and with the same spacing. Specifically, the spacing between adjacent rollers 20 can be the same as the spacing between the battery cells 90 in the previous loading process, thereby allowing multiple battery cells 90 to be loaded simultaneously and reducing the risk of battery cells 90 falling off. And / or, the spacing between adjacent rollers 20 can be the same as the spacing between the battery cells 90 in the subsequent unloading process, thereby allowing multiple battery cells 90 to be unloaded simultaneously and reducing the risk of battery cells 90 falling off.

[0040] During the testing process, the testing fixture of this application drives the rollers 20 to rotate in the same direction via the drive device 30, thereby rotating the battery cells 90 placed between the rollers 20. This facilitates the appearance inspection of the battery cells 90, especially for the appearance inspection of the cylindrical surfaces of the battery cells 90 at different angles. The drive device 30 can be one or more motors, pneumatic motors, hydraulic drive devices, electromagnetic drive devices, gear transmission devices, etc.

[0041] In the above technical solution, the testing fixture of this application can place multiple battery cells 90 at the same time, which reduces the risk of material falling during the handover of battery cells 90 and improves production efficiency.

[0042] In some embodiments, the detection fixture of this application further includes a plurality of sensors 40. The sensors 40 are fixed to the base 10 and disposed between adjacent rollers 20.

[0043] Sensor 40 is used to detect the presence or absence of battery cell 90. For example, it can detect whether battery cell 90 is properly placed on the inspection fixture during loading, whether battery cell 90 has fallen off during appearance inspection, or whether battery cell 90 has left the inspection fixture during unloading.

[0044] The sensor 40 is fixed to the base 10 and located between adjacent rollers 20, ensuring that each cell 90 has a corresponding sensor 40 to detect its presence or absence, thus facilitating the detection of the cell 90 by the sensor 40.

[0045] Of course, the sensor 40 can be located at the same end of the battery cell 90, or it can be located at both ends of the battery cell 90 at intervals.

[0046] Preferably, the sensor 40 is located in the middle of the adjacent rollers 20, thereby optimizing the sensor's sensing.

[0047] In the above technical solution, sensor 40 is used to confirm whether there is material loss in battery cell 90, thereby improving the efficiency of appearance inspection.

[0048] In some embodiments, the sensor 40 is a photoelectric sensor, and the center of the emitted beam of the sensor 40 corresponds to the axis of the battery cell 90.

[0049] The photoelectric sensor can complete the detection without contacting the battery cell 90. This reduces mechanical wear, avoids potential damage caused by contact between the sensor 40 and the surface of the battery cell 90, and extends the service life of the sensor 40.

[0050] Meanwhile, photoelectric sensors have high precision and can detect the presence or absence of tiny objects, making them suitable for high-precision monitoring of battery cells 90, especially in production lines or automated equipment where it is necessary to quickly and accurately determine the presence or absence of battery cells 90.

[0051] In addition, photoelectric sensors typically have a short response time, enabling them to detect the presence or absence of battery cells in real time, making them suitable for appearance inspection processes with high-frequency detection requirements.

[0052] In addition, photoelectric sensors are typically small in size and flexible in installation, making them suitable for applications with limited space or requiring precise alignment. Therefore, they are particularly suitable for use in the detection fixture of this application.

[0053] On the other hand, the center of the emitted beam of the photoelectric sensor corresponds to the 90 axis of the battery cell, thus avoiding detection errors.

[0054] In some embodiments, the base 10 is provided with a mounting cover 11, and the sensor 40 is disposed inside the mounting cover 11.

[0055] Specifically, the mounting cover 11 can be configured such that each sensor 40 has an independent mounting cover 11, or multiple sensors 40 share a single mounting cover 11.

[0056] Preferably, in some embodiments, the sensors 40 are all mounted on one side and share a common mounting cover 11, which is suitable for installation environments with narrow spaces, and the same mounting cover 11 is more stable when subjected to external forces.

[0057] In the above technical solution, the mounting cover 11 can protect the sensor 40 from external interference, extend the service life of the sensor 40, and improve stability.

[0058] In some embodiments, the drive unit 30 is a motor, which is fixed to the base. Adjacent rollers 20 are driven by belts or chains, thereby forming a coordinated transmission system.

[0059] Specifically, the motor can directly drive one roller 20, or indirectly drive one roller 20 through a belt or chain, and then drive the rotation of other rollers 20 through the transmission of the belt or chain, so as to realize the rotation of all rollers 20.

[0060] In the above technical solution, by controlling the operation of the motor, the synchronous rotation of multiple rollers 20 is achieved, ensuring the overall consistency and stability of the operation of the rollers 20, and avoiding the incoordination of operation caused by the different rotation speeds of different rollers 20.

[0061] In some embodiments, the drive device 30 consists of several motors, each motor corresponding to a roller 20, thereby enabling independent control of each roller 20.

[0062] The above technical solution improves the system's response speed and flexibility, enables precise control and adjustment, and optimizes the detection process of cell 90.

[0063] Secondly, this application provides a battery cell appearance inspection device, including an inspection camera and the aforementioned inspection fixture. The inspection fixture is positioned within the field of view of the inspection camera.

[0064] Specifically, the inspection fixture is positioned within the field of view of the inspection camera, which performs visual inspection and ensures that the camera can capture the appearance features of the battery cell 90 from all angles. Simultaneously, the drive device 30 drives the rollers 20 to rotate in the same direction, causing the battery cell 90 placed between the rollers 20 to rotate, thus facilitating the inspection camera's visual inspection of the cylindrical surface of the battery cell 90 at different angles. The battery cell visual inspection equipment of this embodiment not only improves inspection accuracy but also reduces blind spots caused by improper angles of stationary battery cells.

[0065] In the above technical solution, the testing fixture can hold multiple battery cells simultaneously, ensuring that the risk of material falling off is reduced during the cell handover and rotation process. Through several synchronously rotating rollers, the battery cell 90 can remain stable during testing, further improving testing efficiency, reducing manual intervention, enhancing the system's automation level, and providing strong support for battery cell quality control.

[0066] One embodiment of this application also provides a battery cell appearance inspection system, such as... Figure 2 As shown.

[0067] The battery cell appearance inspection system of this application includes an inspection channel 80 and the aforementioned battery cell appearance inspection equipment. The inspection fixture 00 is provided with a slide, and the inspection channel 80 is provided with a track that matches the slide.

[0068] Specifically, the inspection fixture 00, through its sliding connection with the inspection channel 80, can carry the battery cell 90 and move freely, thereby providing more flexibility in the process arrangement of the battery cell appearance inspection system of this application and ensuring efficient flow at different inspection stages.

[0069] In the above technical solution, the inspection fixture 00 can place multiple battery cells 90 at the same time, which greatly reduces the risk of dropping materials during the handover and movement of battery cells, thereby improving the inspection efficiency of the battery cell appearance inspection system of this application.

[0070] In some embodiments, the device further includes a feeding mechanism 60, which is located upstream of the battery cell appearance inspection equipment. The spacing between the battery cells within the feeding mechanism 60 is consistent with the spacing between the battery cells 90 within the inspection fixture 00.

[0071] Specifically, the spacing between battery cells within the feeding mechanism 60 is consistent with the spacing between battery cells 90 within the testing fixture 00, thereby ensuring that the battery cells can enter the testing area accurately and quickly. This design not only improves the feeding speed but also significantly reduces the risk of dropping during feeding through consistent spacing configuration, ensuring that the battery cells 90 will not get stuck or fall when entering the testing channel.

[0072] The above technical solution ensures smooth flow of the battery cell 90 during the testing process, reducing stagnation caused by inaccurate cell displacement, thereby improving the smoothness and efficiency of the testing. Especially in mass production, it effectively increases the throughput of the entire system.

[0073] In some embodiments, the device further includes a feeding mechanism 70, which is located downstream of the battery cell appearance inspection equipment. The spacing between the battery cells within the feeding mechanism 70 is consistent with the spacing between the battery cells within the inspection fixture 00, ensuring that the battery cells can be transferred smoothly and quickly, avoiding jamming or battery cells falling off.

[0074] Specifically, the spacing between the battery cells in the feeding mechanism 70 is consistent with the spacing between the battery cells in the testing fixture 00, which helps to improve the feeding speed and significantly reduces the risk of battery cells falling off during the feeding process.

[0075] In the above technical solution, the battery cells can flow out smoothly after testing, avoiding equipment stoppage or production line interruption due to jamming, thereby greatly improving overall work efficiency and optimizing the automation level and stability of the production process.

[0076] The above technical solutions are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A testing fixture for inspecting the appearance of battery cells, characterized in that, It includes a base, several rollers, and a driving device; adjacent rollers are arranged in parallel with equal spacing and are used to place battery cells; both ends of the rollers are movably connected to the base; the driving device is used to drive the rollers to rotate in the same direction.

2. The testing fixture according to claim 1, characterized in that, It also includes several sensors, which are fixed to the base and disposed between adjacent rollers.

3. The testing fixture according to claim 2, characterized in that, The sensor is a photoelectric sensor, and the center of the emitted beam of the sensor corresponds to the axis of the battery cell.

4. The testing fixture according to claim 2, characterized in that, The base is provided with a mounting cover, and the sensor is located inside the mounting cover.

5. A testing fixture according to claim 1, characterized in that, The driving device is a motor, which is fixed to the base; adjacent rollers are connected by belts or chains.

6. A testing fixture according to claim 1, characterized in that, The driving device consists of several motors, each motor corresponding to one roller.

7. A battery cell appearance inspection device, characterized in that, It includes a detection camera and a detection fixture as described in any one of claims 1-6; the detection fixture is located within the field of view of the detection camera.

8. A battery cell appearance inspection system, characterized in that, It includes a detection channel and the battery cell appearance inspection equipment as described in claim 7; the detection fixture is provided with a slide, and the detection channel is provided with a track that matches the slide.

9. The battery cell appearance inspection system according to claim 8, characterized in that, It also includes a feeding mechanism, which is located upstream of the battery cell appearance inspection equipment; the spacing between the battery cells in the feeding mechanism is the same as the spacing between the battery cells in the inspection fixture.

10. The battery cell appearance inspection system according to claim 8 or 9, characterized in that, It also includes a feeding mechanism, which is located downstream of the battery cell appearance inspection equipment; the battery cell spacing within the feeding mechanism is consistent with the battery cell spacing within the inspection fixture.

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