Top cover in-shell pressing mechanism, battery cell in-shell device and battery cell production line

Abstract

The utility model discloses a top cover in-shell pressing mechanism, a battery cell in-shell device and a battery cell production line, and relates to the technical field of battery manufacturing, the top cover in-shell pressing mechanism comprises a shell fixing assembly, a pressing assembly, an in-shell displacement module and an alignment displacement module; the shell fixing assembly is used for fixing a battery cell shell; the pressing assembly is used for pressing the battery cell top cover on the battery cell shell; the alignment displacement module is connected with the shell fixing assembly and / or the pressing assembly and used for driving the shell fixing assembly and / or the pressing assembly to move in an alignment mode so that the shell fixing assembly can directly face the pressing assembly and can be located on one side of the pressing assembly. The in-shell displacement module is used for driving the pressing assembly to move close to or far away from the opposite shell fixing assembly, and / or the in-shell displacement module is used for driving the shell fixing assembly to move close to or far away from the opposite pressing assembly. And the designed top cover in-shell pressing mechanism can provide a better in-shell pressing effect, so that the welding quality is ensured.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a top cover insertion and pressing mechanism, a cell insertion device, and a cell production line. Background Technology

[0002] In modern battery manufacturing, cylindrical cells are widely used in various electronic devices and electric vehicles due to their simple structure, low cost, and mature manufacturing process. A cylindrical cell typically consists of a positive electrode, a negative electrode, an electrolyte, and a separator, all encapsulated in a metal casing. To ensure the cell's safety and sealing, the casing welding process is one of the key steps in the manufacturing process.

[0003] The casing welding process mainly involves connecting the top cover of the battery cell to the casing to form a sealed container, protecting the internal electrochemical materials from the influence of the external environment. During the welding process, it is necessary to ensure precise alignment and tight bonding between the top cover and the casing to avoid welding defects such as leakage and short circuits, which can seriously affect the performance and safety of the battery cell.

[0004] Traditional shell welding process includes the following steps:

[0005] 1. Cover plate closing: Place the top cover at the opening of the cell casing, ready for welding.

[0006] 2. CCD welding positioning: Machine vision systems (such as CCD cameras) are used to accurately measure and position the top cover and housing to ensure accuracy during welding.

[0007] 3. Cover plate pre-welding: Preliminary welding is performed using preset welding parameters to fix the positional relationship between the top cover and the shell.

[0008] 4. Full welding of the cover plate: Based on the pre-welding, a complete welding process is carried out to ensure a strong seal between the top cover and the shell.

[0009] However, in actual production, the inventors discovered that the existing top cover insertion and clamping mechanism lacked precision. The casing of cylindrical battery cells typically has one or more stepped structures, which require precise alignment during the top cover insertion and clamping process. Insufficient precision in the clamping mechanism can lead to inaccurate alignment between the top cover and the casing, resulting in poor clamping and consequently affecting welding quality. Utility Model Content

[0010] In view of this, the purpose of this application is to provide a top cover insertion clamping mechanism, a cell insertion device, and a cell production line, wherein the top cover insertion clamping mechanism can provide a better insertion clamping effect, thereby ensuring welding quality.

[0011] To achieve the above technical objectives, this application provides a top cover insertion and clamping mechanism, including an outer shell fixing component, a clamping component, an insertion displacement module, and an alignment displacement module;

[0012] The outer casing fixing assembly is used to fix the battery cell casing;

[0013] The clamping assembly is used to press the top cover of the battery cell against the battery cell casing;

[0014] The alignment displacement module is connected to the housing fixing component and / or the clamping component, and is used to drive the housing fixing component and / or the clamping component to align and move, so that the housing fixing component is facing the clamping component and is located on one side of the clamping component;

[0015] The housing displacement module is used to move the clamping assembly closer to or away from the directly opposite housing fixing assembly, and / or the housing displacement module is used to move the housing fixing assembly closer to or away from the directly opposite clamping assembly.

[0016] Furthermore, the housing displacement module includes a clamping displacement module and / or a pressing displacement module;

[0017] The clamping displacement module is connected to the clamping assembly and is used to drive the clamping assembly to move closer to or away from the facing housing fixing assembly.

[0018] The clamping displacement module is connected to the housing fixing assembly and is used to drive the housing fixing assembly to move closer to or away from the opposing clamping assembly.

[0019] Furthermore, it also includes a detection module;

[0020] The detection module is used to detect the position of the top cover of the battery cell.

[0021] Furthermore, the detection module is a visual detection module.

[0022] Furthermore, it also includes a base;

[0023] The outer shell fixing assembly, the clamping assembly, the shell insertion displacement module, and the alignment displacement module are mounted on the base.

[0024] Furthermore, it also includes a clamping and fixing bracket;

[0025] The clamping assembly is slidably mounted on the clamping fixing frame;

[0026] The clamping displacement module is mounted on the clamping fixing frame and connected to the clamping assembly.

[0027] Furthermore, it also includes a clamping and fixing frame;

[0028] The outer casing fixing assembly is slidably mounted on the clamping and fixing frame;

[0029] The clamping displacement module is mounted on the clamping fixing frame and connected to the outer shell fixing assembly.

[0030] Furthermore, the housing fixing assembly includes a clamping body, at least two clamping members, and a clamping driver;

[0031] The clamping driver is mounted on the clamping body and connected to each of the clamping members, and is used to drive each of the clamping members to clamp or open.

[0032] Furthermore, the clamping assembly includes a clamping body and a pressure head;

[0033] The pressure head is fixed to the clamping body.

[0034] This application also discloses a battery cell insertion device, including the aforementioned top cover insertion and pressing mechanism.

[0035] This application also discloses a battery cell production line, including the aforementioned battery cell casing device.

[0036] As can be seen from the above technical solutions, the top cover insertion and clamping mechanism designed in this application has the following beneficial effects:

[0037] The alignment displacement module design enables the clamping component and the housing fixing component to be accurately aligned. At the same time, the housing displacement module design enables the housing fixing component and the clamping component to move in the same direction, ensuring that the cell top cover and the cell housing achieve an ideal tight fit. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the top cover insertion and clamping mechanism provided in this application.

[0040] Figure 2 This is a partial structural diagram of the top cover insertion and clamping mechanism provided in this application.

[0041] Figure 3 This is a schematic diagram of a second partial structure of the top cover insertion and clamping mechanism provided in this application;

[0042] In the diagram: 1. Clamping assembly; 11. Clamping body; 12. Pressure head; 2. Housing fixing assembly; 21. Clamping body; 22. Clamping driver; 23. Clamping component; 3. Clamping displacement module; 4. Clamping displacement module; 5. Clamping fixing frame; 6. Clamping fixing frame; 7. Alignment displacement module; 8. Base. Detailed Implementation

[0043] 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 the embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of this application.

[0044] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0046] This application discloses a top cover insertion and pressing mechanism, a battery cell insertion device, and a battery cell production line.

[0047] Please see Figure 1 One embodiment of the top cover insertion and clamping mechanism provided in this application includes:

[0048] The outer shell fixing component 2, the clamping component 1, the shell displacement module, and the alignment displacement module 7.

[0049] The outer casing fixing component 2 is used to fix the battery cell outer casing, and the clamping component 1 is used to press the top cover of the battery cell onto the battery cell outer casing.

[0050] The alignment displacement module 7 is connected to the housing fixing component 2 and / or the clamping component 1, and is used to drive the housing fixing component 2 and / or the clamping component 1 to move in alignment, so that the housing fixing component 2 is facing the clamping component 1 and is located on one side of the clamping component 1.

[0051] It is understandable that the alignment displacement module 7 can drive the housing fixing component 2 to align and move, or drive the clamping component 1 to align and move, or drive the housing fixing component 2 and the clamping component 1 to align and move simultaneously. The specific choice can be made according to actual needs and is not limited.

[0052] In terms of alignment, taking the clamping component 1 performing clamping operations in the vertical direction as an example, the alignment displacement module 7 specifically drives the outer shell fixing component 2 and / or the clamping component 1 to move to a position where the outer shell fixing component 2 is located directly below the clamping component 1.

[0053] The design of the alignment displacement module 7 further enhances the automation level of the equipment. By aligning and moving the housing fixing component 2 and / or the clamping component 1, precise fit between them can be ensured, thereby improving production efficiency and product quality.

[0054] The housing displacement module is used to move the clamping assembly 1 closer to or away from the opposing housing fixing assembly 2, and / or, the housing displacement module is used to move the housing fixing assembly 2 closer to or away from the opposing clamping assembly 1. Specifically, it moves the housing fixing assembly 2 closer to the clamping assembly 1 to press the cell top cover, or moves the clamping assembly 1 closer to the housing fixing assembly 2 to press the cell top cover, or simultaneously moves the housing fixing assembly 2 and the clamping assembly 1 towards each other to press the cell top cover.

[0055] The number of outer shell fixing components 2 and clamping components 1 can be multiple, arranged in a row, to realize the clamping operation of multiple top covers into the shell at one time, thereby improving efficiency.

[0056] As can be seen from the above technical solutions, the top cover insertion and clamping mechanism designed in this application has the following beneficial effects:

[0057] The alignment displacement module 7 is designed to ensure precise alignment between the clamping assembly 1 and the housing fixing assembly 2. Simultaneously, the housing insertion displacement module allows the housing fixing assembly 2 and the clamping assembly 1 to move in the same direction. This design significantly improves the housing insertion clamping effect of the battery cell top cover, ensuring an ideal tight fit between the battery cell top cover and the battery cell housing, thereby improving overall assembly quality and efficiency.

[0058] The above is Embodiment 1 of the top cover insertion and clamping mechanism provided in this application. The following is Embodiment 2 of the top cover insertion and clamping mechanism provided in this application. Please refer to the following for details. Figures 1 to 3 .

[0059] Based on the solution of Embodiment 1 above:

[0060] Furthermore, the design of the housing displacement module includes a clamping displacement module 4 and / or a pressing displacement module 3.

[0061] The clamping displacement module 3 is connected to the clamping component 1 and is used to drive the clamping component 1 to move closer to or away from the facing housing fixing component 2; the clamping displacement module 4 is connected to the housing fixing component 2 and is used to drive the housing fixing component 2 to move closer to or away from the facing clamping component 1.

[0062] The preferred design of this application includes a clamping displacement module 4 and a pressing displacement module 3, meaning that both the housing fixing component 2 and the pressing component 1 can be independently displaced. This design allows the housing fixing component 2 and the pressing component 1 to move collaboratively in the same direction, which not only improves the pressing efficiency but also increases the adjustment range, allowing for better adjustment of the contact position between the pressing component 1 and the top cover of the battery cell, resulting in a better pressing effect.

[0063] The clamping displacement module 4, the pressing displacement module 3, and the alignment displacement module 7 can be in the form of electric cylinders, pneumatic cylinders, lead screw modules, or linear motor modules, respectively. These structures feature high precision and high stability, meeting the accuracy requirements for pressing the battery cell top cover. Simultaneously, these structures facilitate connection to a control system, enabling automated control and improving the automation level and production efficiency of the equipment. In practical applications, those skilled in the art can choose a suitable structural form based on specific needs and cost considerations, without limitation.

[0064] Furthermore, a detection module is included to detect the position of the battery cell top cover. The presence of this detection module allows for the detection of the battery cell top cover's position before pressing it in, ensuring it is in the correct location before the pressing operation. This design avoids problems such as poor pressing effect or equipment damage caused by incorrect battery cell top cover positioning, further improving reliability and stability. In practical implementation, the detection module can be various forms of position detection devices, such as a vision inspection module (CCD), as long as it can accurately detect the position of the battery cell top cover. Simultaneously, the detection module is connected to the control system, which can feed back the detected position information to the control system in real time. The control system then adjusts the position of the pressing component 1 and / or the outer casing fixing component 2 based on the position information to ensure precise alignment.

[0065] Furthermore, it also includes a base 8; the outer shell fixing assembly 2, the clamping displacement module 4, the pressing assembly 1, the pressing displacement module 3, and the alignment displacement module 7 are mounted on the base 8.

[0066] The design of base 8 provides a stable mounting platform for the entire top cover housing clamping mechanism. All components and modules are mounted on base 8, ensuring their relative position and stability, thereby improving the reliability and precision of the entire mechanism. Simultaneously, base 8 facilitates connection and integration with other equipment or production lines, enhancing the equipment's flexibility and adaptability. In practical implementation, base 8 can be various forms of support structure, as long as it meets the installation and stability requirements. Furthermore, base 8 can be equipped with various positioning holes, mounting slots, and other structures as needed to better install and secure the various components and modules.

[0067] Furthermore, it also includes a clamping and fixing frame 5; a clamping assembly 1 is slidably mounted on the clamping and fixing frame 5; and a clamping displacement module 3 is mounted on the clamping and fixing frame 5 and connected to the clamping assembly 1.

[0068] The design of the clamping bracket 5 provides a stable sliding track and installation platform for the clamping assembly 1. The clamping assembly 1 can slide on the clamping bracket 5 and is driven by the clamping displacement module 3 to perform the clamping operation. This design ensures the stability and accuracy of the clamping assembly 1 during the clamping process, while improving the flexibility and adaptability of the clamping operation. In specific implementations, the clamping bracket 5 can be various forms of support structure, as long as it meets the sliding and installation requirements. In addition, the clamping bracket 5 can also be equipped with various guide structures, limiting structures, etc., as needed to better guide and fix the movement of the clamping assembly 1.

[0069] Furthermore, it also includes a clamping and fixing frame 6; the outer shell fixing component 2 is slidably mounted on the clamping and fixing frame 6; the clamping displacement module 4 is mounted on the clamping and fixing frame 6 and connected to the outer shell fixing component 2.

[0070] The clamping and fixing bracket 6 provides a stable sliding track and installation platform for the housing fixing assembly 2. The housing fixing assembly 2 can slide on the clamping and fixing bracket 6, and is driven by the clamping displacement module 4 to perform the clamping operation. This design ensures the stability and accuracy of the housing fixing assembly 2 during the clamping process, while improving the flexibility and adaptability of the clamping operation. In practical implementation, the clamping and fixing bracket 6 can also be various forms of support structure to meet sliding and installation requirements. Furthermore, the clamping and fixing bracket 6 can also be equipped with guide structures, limiting structures, etc., as needed to better guide and fix the movement of the housing fixing assembly 2.

[0071] Furthermore, taking the housing fixing assembly 2 as an example of fixing the battery cell housing by clamping, it may include a clamping body 21, at least two clamping members 23, and a clamping driver 22; the clamping driver 22 is mounted on the clamping body 21 and connected to each clamping member 23, and is used to drive each clamping member 23 to clamp or open. The clamping body 21, as the main supporting part of the housing fixing assembly 2, bears the installation of the clamping members 23 and the clamping driver 22.

[0072] This design of the clamping assembly 2 allows the battery cell casing to be held stably and reliably. The clamping body 21, as the main support of the clamping assembly 2, supports the installation of the clamping members 23 and the clamping actuator 22. At least two clamping members 23 are responsible for directly clamping the battery cell casing; their number and arrangement can be adjusted according to the shape and size of the battery cell casing to ensure clamping stability. The clamping actuator 22 provides power, driving the clamping members 23 to perform clamping or opening movements by connecting them. This design not only improves clamping flexibility but also ensures the stability and safety of the battery cell casing during clamping.

[0073] In practical implementation, the clamping actuator 22 can be any type of power device, such as an electric gripper actuator or a pneumatic gripper actuator, as long as it can meet the requirements of clamping and opening movements. At the same time, the housing fixing assembly 2 can also be equipped with various sensors, limit switches and other components as needed to better monitor and control the clamping process and ensure that the battery cell housing is not damaged or deformed during the clamping process.

[0074] Of course, besides clamping, adsorption can also be used for fixation. In this case, the casing fixing assembly can include an adsorption fixture and a vacuum pump. The adsorption fixture can be a vacuum plate connected to the vacuum pump to adsorb and fix the battery cell casing. The vacuum plate is designed according to the shape and size of the battery cell casing to ensure uniformity and stability of adsorption. This adsorption fixing method is simple to operate and will not cause compression damage to the battery cell casing, making it an optional fixing method. Those skilled in the art can make appropriate modifications based on this method without limitation.

[0075] Furthermore, the clamping assembly 1 includes a clamping body 11 and a clamping head 12; the clamping head 12 is fixed on the clamping body 11.

[0076] This design of the clamping assembly 1 ensures that the cell top cover can be accurately and forcefully pressed onto the cell casing. The clamping body 11, as the main support of the clamping assembly 1, bears the load for installing the clamping head 12 and performing the clamping operation. The clamping head 12 directly contacts the cell top cover, pressing it onto the cell casing. The shape and size of the clamping head 12 can be designed according to the shape and size of the cell top cover to ensure uniformity and stability of the clamping. Furthermore, the clamping head 12 can be made of various materials to meet different clamping requirements and operating environments. This design not only improves the accuracy and reliability of the clamping but also ensures an ideal tight fit between the cell top cover and the cell casing, thereby improving the overall assembly quality and efficiency. In practical implementation, the clamping assembly 1 can also be equipped with various buffer structures, guiding structures, etc., as needed to better control and guide the clamping process and avoid damage to the cell top cover and cell casing.

[0077] This application also discloses a battery cell insertion device, including a top cover insertion and clamping mechanism.

[0078] This application also discloses a battery cell production line, including a battery cell casing device.

[0079] The top cover insertion and clamping mechanism, the battery cell insertion device, and the battery cell production line provided in this application have been described in detail above. For those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the embodiments of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A top cover insertion and clamping mechanism, characterized in that, Includes a housing fixing assembly (2), a clamping assembly (1), a housing displacement module, and an alignment displacement module (7); The outer casing fixing assembly (2) is used to fix the battery cell outer casing; The clamping assembly (1) is used to clamp the top cover of the battery cell to the outer casing of the battery cell; The alignment displacement module (7) is connected to the outer shell fixing component (2) and / or the clamping component (1) to drive the outer shell fixing component (2) and / or the clamping component (1) to align and move so that the outer shell fixing component (2) faces the clamping component (1) and is located on one side of the clamping component (1); The housing displacement module is used to drive the clamping component (1) to move closer to or away from the opposite housing fixing component (2), and / or, the housing displacement module is used to drive the housing fixing component (2) to move closer to or away from the opposite clamping component (1).

2. The top cover insertion and clamping mechanism according to claim 1, characterized in that, The housing displacement module includes a clamping displacement module (4) and / or a pressing displacement module (3); The clamping displacement module (3) is connected to the clamping assembly (1) and is used to drive the clamping assembly (1) to move closer to or away from the facing outer shell fixing assembly (2); The clamping displacement module (4) is connected to the outer shell fixing component (2) and is used to drive the outer shell fixing component (2) to move closer to or away from the pressing component (1) directly opposite it.

3. The top cover insertion and clamping mechanism according to claim 1, characterized in that, It also includes a detection module; The detection module is used to detect the position of the top cover of the battery cell.

4. The top cover insertion and clamping mechanism according to claim 3, characterized in that, The detection module is a visual detection module.

5. The top cover insertion and clamping mechanism according to claim 1, characterized in that, It also includes the base (8); The outer shell fixing assembly (2), the clamping assembly (1), the shell insertion displacement module and the alignment displacement module (7) are installed on the base (8).

6. The top cover insertion and clamping mechanism according to claim 2, characterized in that, It also includes a clamping and fixing bracket (5); The clamping assembly (1) is slidably mounted on the clamping fixing frame (5); The clamping displacement module (3) is installed on the clamping fixing frame (5) and connected to the clamping assembly (1).

7. The top cover insertion and clamping mechanism according to claim 2, characterized in that, It also includes a clamping and fixing frame (6); The outer shell fixing assembly (2) is slidably mounted on the clamping fixing frame (6); The clamping displacement module (4) is mounted on the clamping fixing frame (6) and connected to the outer shell fixing assembly (2).

8. The top cover insertion and clamping mechanism according to claim 1, characterized in that, The housing fixing assembly (2) includes a clamping body (21), at least two clamping members (23), and a clamping driver (22). The clamping driver (22) is mounted on the clamping body (21) and connected to each of the clamping members (23) to drive each of the clamping members (23) to clamp or open.

9. The top cover insertion and clamping mechanism according to claim 1, characterized in that, The clamping assembly (1) includes a clamping body (11) and a pressure head (12). The pressure head (12) is fixed on the pressing body (11).

10. A battery cell insertion device, characterized in that, Includes the top cover insertion and clamping mechanism as described in any one of claims 1 to 9.

11. A battery cell production line, characterized in that, Includes the cell housing device as described in claim 10.

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