Moving and taking device for soft package lithium battery
By using a soft-pack lithium battery transfer device, and employing conveying, limiting, and photo recognition technologies, the problem of positional error in robotic arm handling has been solved, enabling precise positioning and efficient OCV testing of soft-pack lithium batteries.
Patent Information
- Application Number
- CN202423170327.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-19
AI Technical Summary
During the OCV testing of pouch lithium batteries, the robotic arm has positional errors when picking up the pouch lithium batteries, which makes it impossible to accurately place them in the predetermined position on the test stage, affecting the accuracy and reliability of the test. In particular, the OCV test cannot be performed normally for pouch lithium batteries with smaller size.
A device for transferring soft-pack lithium batteries is adopted, including a conveying mechanism, a limiting mechanism, a lifting mechanism, a picking and placing mechanism, a material tray and a camera. By conveying, lifting, limiting and photographing for recognition, the accuracy of the picking position is improved, so that the soft-pack lithium batteries can be accurately transferred to the predetermined position on the test platform.
It improves the placement and removal accuracy of pouch lithium batteries and enhances the accuracy and reliability of OCV testing.
Smart Images
Figure CN223534439U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery testing technology, and in particular to a device for transferring a soft-pack lithium battery. Background Technology
[0002] Soft-pack lithium batteries are the third generation of lithium batteries developed from the original steel-cased, aluminum-cased, and plastic-cased batteries. They are widely favored by users both domestically and internationally due to their advantages such as being lighter and thinner, having better safety performance, meeting high aesthetic requirements, high energy density, stable discharge platform, excellent power performance, and being environmentally friendly and pollution-free. Soft-pack lithium batteries are widely used in electric vehicles, power banks, digital electronic products, smart wearable products, electric toys, and many other fields.
[0003] Open Circuit Voltage (OCV) testing of lithium battery cells is a crucial step in the battery manufacturing process. In related technologies, during OCV testing of pouch lithium batteries, a robotic arm picks up the battery and places it on the test bench of the OCV testing equipment. Before being picked up, the pouch lithium battery is constrained by a clamp, and the robotic arm retrieves the battery according to a pre-set position.
[0004] However, in actual operation, there is a positional error when the robotic arm picks up the pouch lithium battery. The error in the positional accuracy will cause the robotic arm to be unable to accurately place the pouch lithium battery in the predetermined position on the test stage. This will affect the accuracy and reliability of OCV testing, especially for small pouch lithium batteries, which cannot be tested normally. Utility Model Content
[0005] To solve or partially solve the problems existing in the related technologies, this application provides a device for transferring soft-pack lithium batteries, which can improve the accuracy of picking up and placing soft-pack lithium batteries.
[0006] This application provides a device for transferring soft-pack lithium batteries, including: a conveying mechanism, a limiting mechanism, a lifting mechanism, a picking and placing mechanism, a material tray, and a camera;
[0007] The conveying mechanism includes a feeding end and a discharging end. The limiting mechanism and the lifting mechanism are both located at the discharging end. The camera is located above the discharging end. The material tray is used to place soft-pack lithium batteries.
[0008] The material tray is conveyed from the feeding end to the discharging end by the conveying mechanism. The lifting mechanism is used to lift the material tray upwards. The limiting mechanism is used to clamp the material tray. The picking and placing mechanism is used to pick up the soft-pack lithium battery located in the material tray at the discharging end and transfer the soft-pack lithium battery to the testing equipment.
[0009] Furthermore, the conveying mechanism includes a conveyor belt and a conveying drive component for driving the conveyor belt to rotate.
[0010] Furthermore, the conveyor belt has two belts, which are arranged at intervals relative to each other, and both belts are connected to the conveyor drive unit.
[0011] Furthermore, the limiting mechanism includes a limiting drive component and two opposing clamping plates. The limiting drive component is used to drive the two clamping plates to open and close, so as to clamp and limit the material tray.
[0012] Furthermore, the lifting mechanism includes a lifting platform and a lifting drive component for driving the lifting platform to move, wherein the lifting platform is used to carry the material pallet.
[0013] Furthermore, the pick-and-place mechanism includes a moving part and an adsorption head disposed on the moving part.
[0014] Furthermore, the material tray is provided with multiple limiting slots for placing soft-pack lithium batteries. Furthermore, the material tray is provided with vent holes penetrating the material tray; and / or
[0015] The limiting groove is provided with pick-up and put-out slots on both sides.
[0016] Furthermore, an empty tray placement rack is provided on one side of the conveying mechanism.
[0017] Furthermore, the aforementioned soft-pack lithium battery transfer device also includes a controller, a light source, and a mounting bracket. The camera and the light source are mounted on the mounting bracket, and the controller is electrically connected to the conveying mechanism, the limiting mechanism, the lifting mechanism, the pick-and-place mechanism, and the camera, respectively.
[0018] The technical solution provided in this application can include the following beneficial effects: by conveying a material tray containing pouch lithium batteries from the loading end to the discharge end by a conveying mechanism, and then raising the material tray to a predetermined height by a lifting mechanism, the limiting mechanism clamps the material tray and limits its position, and then a camera takes a picture of the material tray and identifies the precise position of the pouch lithium batteries to be picked up or placed. Based on the position identified by the picture, the picking and placing mechanism can more accurately pick up the pouch lithium batteries in the material tray at the discharge end, thereby improving the picking position accuracy and enabling the picking and placing mechanism to accurately transfer the pouch lithium batteries to the predetermined position on the test bench, thereby improving the picking and placing accuracy of pouch lithium batteries and improving the accuracy and reliability of OCV testing.
[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0020] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.
[0021] Figure 1 This is a schematic diagram of the structure of the soft-pack lithium battery transfer device shown in the embodiments of this application;
[0022] Figure 2 This is a schematic diagram of the structure of a material tray shown in an embodiment of this application.
[0023] Figure label:
[0024] 1-Conveying mechanism, 11-Feeding end, 12-Discharging end, 2-Limiting mechanism, 3-Lifting mechanism, 4-Pick-and-place mechanism, 5-Material tray, 51-Limiting groove, 52-Exhaust hole, 53-Pick-and-place groove, 6-Camera, 7-Empty tray rack, 8-Light source, 9-Fixing frame, 10-Base. Detailed Implementation
[0025] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.
[0026] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0027] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and 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 of this application.
[0028] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0029] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0030] Figure 1 This is a schematic diagram of the structure of a soft-pack lithium battery transfer device shown in an embodiment of this application. Figure 2 This is a schematic diagram of the structure of the material tray 5 shown in the embodiment of this application.
[0031] like Figure 1 and Figure 2 As shown in the figure, this application provides a device for transferring a soft-pack lithium battery, including a conveying mechanism 1, a limiting mechanism 2, a lifting mechanism 3, a picking and placing mechanism 4, a material tray 5, and a camera 6. The camera 6 may be a CCD camera.
[0032] The conveying mechanism 1 includes a feeding end 11 and a discharging end 12. The limiting mechanism 2 and the lifting mechanism 3 are both located at the discharging end 12. The camera 6 is located above the discharging end 12. The material tray 5 is used to place soft-pack lithium batteries.
[0033] The material tray 5 is conveyed from the feeding end 11 to the discharging end 12 by the conveying mechanism 1. The lifting mechanism 3 is used to lift the material tray 5 upwards, the limiting mechanism 2 is used to clamp the material tray 5, and the picking and placing mechanism 4 is used to pick up the soft-pack lithium battery in the material tray 5 located at the discharging end 12 and transfer the soft-pack lithium battery to the testing equipment.
[0034] The conveying mechanism 1, the limiting mechanism 2 and the lifting mechanism 3 are all located on the base 10. The base 10 is equipped with a bracket (not shown in the figure), and the camera 6 is located on the bracket.
[0035] By conveying the material tray 5 containing pouch lithium batteries from the loading end 11 to the discharge end 12 by the conveying mechanism 1, and then the lifting mechanism 3 raises the material tray 5 to a predetermined height, the limiting mechanism 2 clamps the material tray 5 to limit its position, and then the camera 6 takes a picture of the material tray 5 and identifies the precise position of the pouch lithium batteries to be picked up or placed. The picking and placing mechanism 4 can pick up the pouch lithium batteries in the material tray 5 located at the discharge end 12 more accurately according to the position identified by the picture, thereby improving the picking position accuracy and enabling the picking and placing mechanism 4 to accurately transfer the pouch lithium batteries to the predetermined position on the test bench. This improves the picking and placing accuracy of pouch lithium batteries and the accuracy and reliability of OCV testing.
[0036] In some embodiments, the conveying mechanism 1 includes a conveyor belt and a conveying drive for driving the conveyor belt to rotate. Specifically, the conveying drive may be a motor, which drives the conveyor belt to rotate via a synchronous pulley, and the material pallet 5 is placed on the conveyor belt and thus moved. During operation, a stack of material pallets 5 can be placed on the loading end 11 by an operator.
[0037] In some embodiments, there are two conveyor belts, which are arranged at intervals relative to each other, and both conveyor belts are connected to a conveying drive. Specifically, the gap between the two conveyor belts allows the lifting mechanism 3 to move up and down.
[0038] In some embodiments, the limiting mechanism 2 includes a limiting drive and two opposing clamping plates. The limiting drive drives the two clamping plates to open and close, clamping and limiting the material tray 5. Specifically, the two clamping plates can be located on the left and right sides of the material tray 5 to clamp the material tray 5. A baffle can also be provided at the front end of the discharge end 12 to prevent the material tray 5 from detaching when it is moved forward by the conveyor belt, thus limiting the front side of the material tray 5. The two clamping plates clamp the material tray 5 after it has moved upward into place. The limiting drive can be a motor, which drives the clamping plates to move via a synchronous belt or a lead screw.
[0039] In some embodiments, the lifting mechanism 3 includes a lifting platform and a lifting drive for moving the lifting platform. The lifting platform is used to carry the material pallet 5. Specifically, the lifting platform may be located between two conveyor belts, and the lifting drive may be a cylinder or a motor.
[0040] In some embodiments, the pick-and-place mechanism 4 includes a moving part and an adsorption head disposed on the moving part. The adsorption head can be connected to an external vacuum pumping component to pick up the pouch lithium battery by vacuum adsorption. The moving part can be a robotic arm or a three-axis moving mechanism.
[0041] In some embodiments, such as Figure 2 As shown, the material tray 5 is provided with multiple limiting slots 51 for placing soft-pack lithium batteries, and the limiting slots 51 limit the soft-pack lithium batteries located therein.
[0042] In some embodiments, the material tray 5 is provided with a vent 52 that penetrates the material tray 5. When multiple material trays 5 are stacked on the feeding end 11, the vent 52 can prevent positive air suction between the upper and lower material trays 5, and prevent the lower material tray 5 from being accidentally taken down when the upper material tray 5 is taken down.
[0043] In some embodiments, the limiting groove 51 is provided with pick-up and put-down grooves 53 on both sides, which facilitate operators to pick up and put down soft-pack lithium batteries on the material tray 5.
[0044] In some embodiments, an empty tray placement rack 7 is provided on one side of the conveying mechanism 1. After all the soft-pack lithium batteries on the uppermost material tray 5 have been removed by the pick-and-place mechanism 4, the empty material tray 5 can be placed on the empty tray placement rack 7, allowing for continued material retrieval from the lower material trays 5. Before retrieving material from the lower material trays 5, the lifting mechanism 3 can move the material trays 5 upwards a certain distance to a preset position.
[0045] In some embodiments, such as Figure 1 As shown, the pouch lithium battery transfer device also includes a controller, a light source 8, and a mounting frame 9. The camera 6 and the light source 8 are mounted on the mounting frame 9. The light source 8 is a light source board. The controller is electrically connected to the conveying mechanism 1, the limiting mechanism 2, the lifting mechanism 3, the pick-and-place mechanism 4, and the camera 6. The controller controls the actions of each mechanism. The controller also contains an image recognition algorithm to obtain the specific location information of the pouch lithium battery based on the image captured by the camera 6, and controls the pick-and-place mechanism 4 to remove the pouch lithium battery based on the specific location information. The image recognition algorithm and the acquisition of the spatial location information of the pouch lithium battery can both employ conventional methods already existing in the field, and will not be elaborated upon here.
[0046] In summary, the soft-pack lithium battery transfer device provided in this application embodiment first places multiple stacked material trays 5 containing soft-pack lithium batteries on the loading end 11. The conveying mechanism 1 transports the material trays 5 to the discharge end 12. The lifting mechanism 3 lifts the material trays 5 from below to a preset position. The limiting mechanism 2 clamps and fixes the material trays 5. The camera 6 takes pictures of the material trays 5 and identifies the specific positions of the soft-pack lithium batteries on them. The picking and placing mechanism 4 picks up and places the soft-pack lithium batteries in the top material tray 5 sequentially to the test table for testing according to the identified specific positions. After all the soft-pack lithium batteries in the top material tray 5 have been removed, the limiting mechanism 2 releases each material tray 5. The empty material tray 5 on the top layer can be placed on the empty tray placement rack 7 manually or by a robot. The lifting mechanism 3 continues to lift the remaining material trays 5 to the preset position, thereby repeating the above steps until all the soft-pack lithium batteries on all material trays 5 have been removed.
[0047] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.
[0048] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A device for transferring a soft-pack lithium battery, characterized in that, include: Conveying mechanism, limiting mechanism, lifting mechanism, picking and placing mechanism, material pallet and camera; The conveying mechanism includes a feeding end and a discharging end. The limiting mechanism and the lifting mechanism are both located at the discharging end. The camera is located above the discharging end. The material tray is used to place soft-pack lithium batteries. The material tray is conveyed from the feeding end to the discharging end by the conveying mechanism. The lifting mechanism is used to lift the material tray upwards. The limiting mechanism is used to clamp the material tray. The picking and placing mechanism is used to pick up the soft-pack lithium battery located in the material tray at the discharging end and transfer the soft-pack lithium battery to the testing equipment.
2. The device for transferring a soft-pack lithium battery according to claim 1, characterized in that: The conveying mechanism includes a conveyor belt and a conveying drive component for driving the conveyor belt to rotate.
3. The device for transferring a soft-pack lithium battery according to claim 2, characterized in that: The conveyor belt has two belts, which are arranged at intervals relative to each other, and both belts are connected to the conveyor drive unit.
4. The device for transferring a soft-pack lithium battery according to claim 1, characterized in that: The limiting mechanism includes a limiting drive component and two opposing clamping plates. The limiting drive component is used to drive the two clamping plates to open and close, so as to clamp and limit the material tray.
5. The device for transferring a soft-pack lithium battery according to claim 1, characterized in that: The lifting mechanism includes a lifting platform and a lifting drive component for moving the lifting platform, the lifting platform being used to support the material pallet.
6. The device for transferring a soft-pack lithium battery according to claim 1, characterized in that: The pick-and-place mechanism includes a moving part and an adsorption head disposed on the moving part.
7. The device for transferring a soft-pack lithium battery according to claim 1, characterized in that: The material tray is equipped with multiple positioning slots for placing soft-pack lithium batteries.
8. The device for transferring a soft-pack lithium battery according to claim 7, characterized in that: The material tray is provided with a vent that extends through the material tray; and / or The limiting groove is provided with pick-up and put-out slots on both sides.
9. The device for transferring a soft-pack lithium battery according to claim 1, characterized in that: An empty tray rack is provided on one side of the conveying mechanism.
10. The device for transferring a soft-pack lithium battery according to claim 1, characterized in that: It also includes a controller, a light source, and a mounting bracket. The camera and the light source are mounted on the mounting bracket. The controller is electrically connected to the conveying mechanism, the limiting mechanism, the lifting mechanism, the pick-and-place mechanism, and the camera, respectively.