Double-station cell tab flattening device

Abstract

The utility model discloses a double-station battery cell tab flattening device which comprises a workbench and two tab flattening devices, the two tab flattening devices are oppositely arranged and are both installed on the workbench, each of the two tab flattening devices comprises a pre-pressing assembly and a flattening assembly, and the pre-pressing assembly and the flattening assembly are arranged on the workbench. The two pre-pressing assemblies and the two flattening assemblies are sequentially used for gathering and flattening tabs at the two ends of a battery cell; the supporting device is mounted on the working table, is positioned between the two tab flattening devices, and is used for placing a battery cell; the first driving device is mounted on the workbench and connected with the supporting device, and the first driving device is used for driving the supporting device to drive the battery cells to move from the gathering processing station to the flattening processing station; the tab forming efficiency is high, the flattening effect is good, the flatness and the working efficiency of the battery cell tab are improved, and the production quality of the battery cell is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a double-station battery cell tab flattening device. Background Art

[0002] The tabs refer to the metal conductors that lead the positive and negative electrodes out of the battery cell. The tabs have the function of transmitting electrical energy to the battery cell, and the battery cell is an important component of the cylindrical battery. It is mainly a cylinder wound by a winding device. The tabs are the connection ends of the positive and negative electrodes of the battery cell, usually at both ends of the wound part of the battery cell, and are the key path when the battery cell is charged and discharged. In the subsequent production process of the wound cylindrical battery cell, the tabs at both ends need to be flattened first to ensure the flatness of the battery cell, thereby improving the conductivity, stability, safety, capacity and life of the battery, and also facilitate the subsequent assembly into the shell to improve work efficiency and product quality; the traditional battery cell tab flattening method uses a flat plate to directly flatten the tabs at both ends of the battery cell, which cannot ensure that the tabs at the ends of the battery cell are all gathered and flattened, and the flattening effect is poor, so that the flatness of the tabs at both ends of the battery cell cannot be guaranteed, which affects the production quality of the battery cell and has low work efficiency. Utility Model Content

[0003] The utility model aims to provide a double-station battery cell tab flattening device to solve the problems in the prior art that the tab flattening effect at both ends of the battery cell is poor, the efficiency is low, the flatness of the tabs at both ends of the battery cell cannot be guaranteed, and the production quality and efficiency of the battery cell are affected.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A double-station battery cell tab flattening device, comprising:

[0006] A workbench and two tab flattening devices, the two tab flattening devices are arranged opposite to each other and are both installed on the workbench, the two tab flattening devices each include a pre-pressing component and a flattening component, the two pre-pressing components and the two flattening components are used to gather and flatten the tabs at both ends of the battery cell in sequence;

[0007] A supporting device, the supporting device is mounted on a workbench and is located between two tab flattening devices, and the supporting device is used to place the battery cell;

[0008] The first driving device is installed on the workbench and connected to the supporting device. The first driving device is used to drive the supporting device to drive the battery cell to move from the gathering processing station to the flattening processing station.

[0009] According to the above technical means, the tabs at the ends of the battery cells are gathered and flattened in turn by the pre-pressing component and the flattening component, so that the tabs at both ends of the battery cells have a good flattening effect, the flatness of the tabs at the ends of the battery cells is improved, and the production quality of the battery cells is guaranteed. The two tab flattening devices synchronously process the tabs at both ends of the battery cells, and cooperate with the first driving device to drive the supporting device to drive the battery cells to move from the gathering processing station to the flattening processing station, thereby improving the work efficiency, thereby improving the production efficiency. When working, the battery cells are placed on the supporting device, and the two tab flattening devices are respectively arranged at the two ends of the battery cells. The first driving device drives the supporting device to drive the battery cell to be firstly located at the gathering processing station, that is, between the two pre-pressing components. The two pre-pressing components respectively gather and shape the pole ears at both ends of the battery cell for subsequent flattening processing. Then the first driving device drives the supporting device to drive the battery cell to move from the gathering processing station to the flattening processing station, that is, between the two flattening components. The two flattening components respectively perform flat pressing on the pole ears at both ends of the battery cell after gathering and shaping to complete the flattening of the battery cell pole ears. The pole ear forming efficiency is high and the flattening effect is good, which improves the flatness and work efficiency of the battery cell pole ears and ensures the production quality of the battery cell.

[0010] Furthermore, the tab flattening device also includes a second driving device, which is installed on a workbench. The pre-pressing assembly and the flattening assembly are arranged in parallel and are both connected to the second driving device. The second driving device is used to drive the pre-pressing assembly and the flattening assembly to move closer to or away from an adjacent end of the battery cell.

[0011] According to the above technical means, the second driving device drives the pre-pressing assembly and the flattening assembly to move closer to or away from the end of the battery cell, thereby realizing the gathering and flattening of the pole ears, so as to cooperate with the first driving device to drive the support device to move for continuous work and improve work efficiency.

[0012] Furthermore, the tab flattening device also includes a pressure sensing device, which is electrically connected to the pre-pressing component and the flattening component, and is used to detect the pressure exerted by the pre-pressing component and the flattening component on the adjacent end of the battery cell, and the pressure sensing device is communicatively connected to the second driving device.

[0013] According to the above technical means, when the two second driving devices simultaneously drive the two groups of pre-pressing components and flattening components to press the tabs at both ends of the battery cell respectively, the pressure sensing device collects the pressure values ​​at both ends of the battery cell and communicates with the second driving device to ensure that the pressures at both ends of the battery cell are consistent, so that the tab flattening effect at both ends of the battery cell is consistent, and the tab forming efficiency is high. At the same time, it also prevents the pressure at both ends of the battery cell from being too large, avoids changes in the internal structure of the battery cell, explosions, etc., and improves the production quality of the battery cell.

[0014] Furthermore, it also includes a distance detection device, which is installed on a workbench and is used to detect the distance between the two ends of the battery cell and the adjacent flattening components. The distance detection device is communicatively connected to the second driving device.

[0015] According to the above-mentioned technical means, when the battery cell is located between two flattening assemblies, the distance between the two flattening assemblies and the adjacent end of the battery cell is detected by the distance detection device, and the two second driving devices are communicated and connected. The two second driving devices adjust the stroke of the corresponding flattening assemblies according to the detection conditions of the distance detection device, so that the center of the battery cell is located at the center position of the two flattening assemblies to ensure that the distances from the two ends of the battery cell to the two flattening assemblies are equal. Therefore, during the flattening process, the two flattening assemblies flatten the pole ears at both ends of the battery cell at the same time. At the same time, under the action of the pressure sensing device, the pressure is the same, the pole ear forming efficiency is high, the flattening effect is good, and the production quality of the battery cell is improved.

[0016] Furthermore, it also includes a fixing device, which is mounted above the supporting device and is used to fix the battery cells on the gathering processing station and the flattening processing station.

[0017] According to the above technical means, when the battery cell is located between two pre-pressing components or two flattening components, the fixing device first limits and fixes the battery cell, and then the two pre-pressing components or two flattening components gather or flatten the battery cell to ensure the stability of the battery cell, improve the efficiency of the tab forming, and ensure the flattening quality.

[0018] Furthermore, the fixing device includes a bracket and two pressing blocks, the bracket is installed on the workbench, the two pressing blocks are respectively located above the gathering processing station and the flattening processing station, the two pressing blocks are respectively connected to a third driving device, the two third driving devices are both installed on the bracket and are respectively used to drive the two pressing blocks to fix the corresponding battery cells.

[0019] According to the above technical means, when the battery cells are being gathered or flattened, the third driving device at the corresponding position drives the adjacent pressing blocks to extend, pressing the battery cells onto the supporting device to prevent the battery cells from shifting during the gathering or flattening process, thereby affecting the flattening effect and work efficiency.

[0020] Furthermore, the two pre-pressing components are both conical surface jigs, and conical holes are provided on the opposite surfaces of the two conical surface jigs, and the two conical holes can match the two ends of the battery core.

[0021] According to the above technical means, during the gathering process, the two second driving devices respectively drive the two conical fixtures to approach the two ends of the battery cell, and the two ends of the battery cell respectively cooperate with the conical holes on the two conical fixtures. The tabs at the ends of the battery cell are gathered and shaped under the guidance of the conical holes, preventing the tabs from affecting the conductive performance of the battery cell due to failure to collapse during flattening, thereby improving the efficiency and quality of tab flattening.

[0022] Furthermore, the two flattening components are both planar jigs, and the opposite surfaces of the two planar jigs are both planes and can respectively contact with the two ends of the battery cell.

[0023] According to the above technical means, during the flattening process, the two second driving devices respectively drive the two planar fixtures to approach the two ends of the battery cell, and the two ends of the battery cell respectively contact the planes of the two planar fixtures, so that the ears gathered at the two ends of the battery cell are quickly flattened, with high work efficiency and good quality.

[0024] Furthermore, the tab flattening device also includes a guide rail and a mounting block. The guide rail is installed on a workbench and its length is set along the axial direction of the battery cell. The mounting block is slidably installed on the guide rail. The pre-pressing assembly and the flattening assembly are both installed on the mounting block. The second driving device is connected to the mounting block and is used to drive the mounting block to drive the pre-pressing assembly and the flattening assembly to move along the guide rail.

[0025] According to the above-mentioned technical means, the second driving device drives the mounting block to slide along the guide rail, thereby driving the pre-stressing assembly and the flattening assembly to move closer to or away from the end of the battery cell for gathering and flattening. Under the guidance of the guide rail, the stability of the movement of the pre-stressing assembly and the flattening assembly is improved, thereby improving the efficiency and quality of the tab flattening.

[0026] Furthermore, the support device is provided with at least one groove, and a plurality of grooves are arranged in sequence along the moving direction of the support device, and the groove is used for placing the battery cell.

[0027] According to the above-mentioned technical means, the battery cells are placed in the grooves to prevent the battery cells from rolling when the supporting device moves, which affects the tab flattening effect and efficiency. A plurality of grooves are arranged on the supporting device. When working, a plurality of battery cells can be placed correspondingly on the supporting device. With the cooperation of the first driving device and the second driving device, the two pre-pressing components and the two flattening components work simultaneously, thereby working continuously and improving work efficiency.

[0028] Beneficial effects achieved by the utility model:

[0029] The utility model uses a pre-pressing component and a flattening component to sequentially gather and flatten the pole ears at the ends of the battery cells, so that the flattening effect of the pole ears at the ends of the battery cells is good, the flatness of the pole ears at the ends of the battery cells is improved, and the production quality of the battery cells is guaranteed. The two pole ear flattening devices synchronously process the pole ears at the ends of the battery cells, and cooperate with the first driving device to drive the supporting device to drive the battery cells to move from the gathering processing station to the flattening processing station, thereby improving the work efficiency, thereby improving the production efficiency. When working, the battery cells are placed on the supporting device, and the two pole ear flattening devices are respectively arranged at the two ends of the battery cells relative to each other. The first driving device drives the supporting device to move the battery cells from the gathering processing station to the flattening processing station, thereby improving the work efficiency. The driving device drives the supporting device to drive the battery cell to be located at the gathering processing station first, that is, between the two pre-pressing components. The two pre-pressing components respectively gather and shape the pole ears at both ends of the battery cell to facilitate the subsequent flattening processing. Then the first driving device drives the supporting device to drive the battery cell to move from the gathering processing station to the flattening processing station, that is, between the two flattening components. The two flattening components directly perform flat pressing on the pole ears at both ends of the battery cell after the gathering and shaping, to complete the flattening of the battery cell pole ears. The pole ear forming efficiency is high and the flattening effect is good, which improves the flatness and work efficiency of the battery cell pole ears and ensures the production quality of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a front view of the utility model.

[0031] Figure 2 It is a top view of the utility model.

[0032] Figure 3 It is an axial side view of the utility model.

[0033] Figure 4 It is a structural schematic diagram of the pre-pressing component and the flattening component of the utility model.

[0034] Figure 5 for Figure 4 sectional view of .

[0035] Among them, 1-workbench; 2-ear flattening device; 21-pre-pressing assembly; 211-conical hole; 22-flattening assembly; 23-second driving device; 24-pressure sensing device; 25-guide rail; 26-mounting block; 3-battery cell; 4-support device; 41-groove; 5-first driving device; 6-distance detecting device; 7-fixing device; 71-bracket; 72-pressing block; 73-third driving device.

[0036] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The same or similar numbers correspond to the same or similar parts. The terms describing the positional relationship in the drawings are only used for illustrative purposes and should not be construed as limitations on this patent. Specific embodiments

[0037] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific embodiments should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the specific technical scheme of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0039] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0040] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0041] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0042] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0043] The technical solution of the present utility model is described in detail below in conjunction with the specific drawings.

[0044] In this embodiment, a double-station battery cell tab flattening device is provided. Figure 1-Figure 3 As shown, it includes: a workbench 1 and two tab flattening devices 2, the two tab flattening devices 2 are arranged opposite to each other and are both installed on the workbench 1, the two tab flattening devices 2 each include a pre-pressing component 21 and a flattening component 22, the two pre-pressing components 21 and the two flattening components 22 are used to gather and flatten the tabs at both ends of the battery cell 3 in turn; a supporting device 4, the supporting device 4 is installed on the workbench 1 and is located between the two tab flattening devices 2, the supporting device 4 is used to place the battery cell 3; a first driving device 5, the first driving device 5 is installed on the workbench 1 and is connected to the supporting device 4, the first driving device 5 is used to drive the supporting device 4 to drive the battery cell 2 to move from the gathering processing station to the flattening processing station.

[0045] In this embodiment, the tabs at the ends of the battery cell 3 are gathered and flattened in sequence by the pre-pressing component 21 and the flattening component 22, so that the tabs at both ends of the battery cell 3 have a good flattening effect, the flatness of the tabs at the ends of the battery cell 3 is improved, and the production quality of the battery cell is guaranteed. The two tab flattening devices 2 synchronously process the tabs at both ends of the battery cell 3, and cooperate with the first driving device 5 to drive the supporting device 4 to drive the battery cell 3 from the gathering processing station to the flattening processing station, thereby improving the work efficiency, thereby improving the production efficiency. Figure 1-2As shown, during specific operation, the battery cell 3 is placed on the supporting device 4, so that the two tab flattening devices 2 are respectively arranged at the two ends of the battery cell 3, and the first driving device 5 drives the supporting device 4 to drive the battery cell 3 to be first located at the gathering processing station, that is, between the two pre-pressing components 21. The two pre-pressing components 21 respectively gather and shape the tabs at both ends of the battery cell 3 to facilitate subsequent flattening processing, and then the first driving device 5 drives the supporting device 4 to drive the battery cell 3 to move from the gathering processing station to the flattening processing station, that is, between the two flattening components 22. The two flattening components 22 respectively perform flat pressing on the tabs at both ends of the battery cell 3 after gathering and shaping, so as to complete the tab flattening work of the battery cell. The tab forming efficiency is high and the flattening effect is good, which improves the flatness and work efficiency of the battery cell tabs and ensures the production quality of the battery cell. Among them, the supporting device 4 can be a rotating springboard, a conveyor belt, an assembly line or other supporting parts, and the first driving device 5 can be a cylinder or a motor.

[0046] In this embodiment, the tab flattening device 2 also includes a second driving device 23, which is installed on the workbench 1. The pre-pressing component 21 and the flattening component 22 are arranged in parallel and are both connected to the second driving device 23. The second driving device 23 is used to drive the pre-pressing component 21 and the flattening component 22 to move closer to or away from the adjacent end of the battery cell 3.

[0047] In this embodiment, the second driving device 23 drives the pre-pressing assembly 21 and the flattening assembly 22 to move closer to or away from the end of the battery cell 3, thereby realizing the gathering and flattening of the tabs, so as to cooperate with the first driving device 5 to drive the support device 4 to move and perform continuous work, thereby improving the working efficiency. Figure 2-Figure 3 As shown, during specific operation, when the first driving device 5 drives the supporting device 4 to bring the battery cell 3 to the gathering processing station or the flattening processing station, the two second driving devices 23 respectively drive the adjacent pre-pressing components 21 and the flattening components 22 to approach the ends of the battery cell 3, thereby gathering or flattening the ears at both ends of the battery cell 3, with high working efficiency, wherein the second driving device 23 can be a motor.

[0048] In this embodiment, the tab flattening device 2 also includes a pressure sensing device 24, which is electrically connected to the pre-pressing component 21 and the flattening component 22, and is used to detect the pressure exerted by the pre-pressing component 21 and the flattening component 22 on the adjacent end of the battery cell 3, and the pressure sensing device 24 is communicatively connected to the second driving device 23.

[0049] In this embodiment, the pressure sensor device 24 collects the pressure at both ends of the battery cell 3 and is connected to the second driving device 23 for communication to control the pressure at both ends of the battery cell. Figure 2-Figure 3As shown, during specific operation, the two second driving devices 23 simultaneously drive the two groups of pre-pressing components 21 and the flattening components 22 to respectively press the pole ears at both ends of the battery cell 3, and the two pressure sensing devices 24 respectively collect the pressure values ​​at both ends of the battery cell 3 and transmit the signals to the corresponding second driving devices 23. The two second driving devices 23 adjust the pressure on both ends of the battery cell 3 according to the received signals to ensure that the pressure on both ends of the battery cell 3 is consistent, so that the pole ear flattening effect at both ends of the battery cell 3 is consistent, and the pole ear forming efficiency is high. At the same time, it is also necessary to prevent the pressure on both ends of the battery cell 3 from being too large, so as to avoid changes in the internal structure of the battery cell, explosion, etc., thereby improving the production quality of the battery cell.

[0050] In this embodiment, a distance detection device 6 is also included. The distance detection device 6 is installed on the workbench 1. The distance detection device 6 is used to detect the distance between the two ends of the battery cell 3 and the adjacent flattening assembly 22. The distance detection device 6 is communicatively connected to the second driving device 23.

[0051] In this embodiment, Figure 1-Figure 3 As shown, when the battery cell 3 is located between the two flattening components 22, the distance between the two flattening components 22 and the two ends of the battery cell 3 is detected by the distance detection device 6, and the distance signal is transmitted to the two second driving devices 23 respectively. The two second driving devices 23 adjust the stroke of the corresponding flattening component 22 according to the received distance signal, so that the center of the battery cell 3 is located at the center position of the two flattening components 22, so as to ensure that the distances from the two ends of the battery cell 3 to the two flattening components 22 are equal. Therefore, during the flattening process, the two flattening components 22 flatten the ears at both ends of the battery cell 3 at the same time. At the same time, under the action of the pressure sensing device 24, the pressure is made the same, the ear forming efficiency is high, the flattening effect is good, and the production quality of the battery cell is improved.

[0052] In this embodiment, a fixing device 7 is also included, and the fixing device 7 is mounted above the supporting device 4 and is used to fix the battery cells 3 on the gathering processing station and the flattening processing station; Figure 2 and Figure 3 As shown, when the battery cell 3 is located between two pre-pressing components 21 or two flattening components 22, the fixing device 7 first limits and fixes the battery cell 3, and then the two pre-pressing components or two flattening components gather or flatten the battery cell 3 to ensure the stability of the battery cell, improve the efficiency of the tab forming, and ensure the flattening quality.

[0053] In this embodiment, the fixing device 7 includes a bracket 71 and two pressing blocks 72. The bracket 71 is installed on the workbench 1. The two pressing blocks 72 are respectively located above the gathering processing station and the flattening processing station. The two pressing blocks 72 are respectively connected to a third driving device 73. The two third driving devices 73 are both installed on the bracket 71 and are respectively used to drive the two pressing blocks 72 to fix the corresponding battery cells 3.

[0054] In this embodiment, Figure 3 As shown, during specific operation, when the battery cells 3 are being gathered or flattened, the third driving device 73 at the corresponding position drives the adjacent pressing block 72 to extend, pressing the battery cells 3 onto the supporting device 4, to prevent the battery cells 3 from being displaced during the gathering or flattening process, thereby affecting the flattening effect and work efficiency, wherein the third driving device 73 may be a cylinder.

[0055] In this embodiment, the two pre-pressing components 21 are both conical fixtures, and conical holes 211 are provided on the opposite surfaces of the two conical fixtures. The two conical holes 211 can match the two ends of the battery cell 3; Figure 4 and Figure 5 As shown, during the gathering process, the two second driving devices 23 respectively drive the two conical fixtures to approach the two ends of the battery cell 3, and the two ends of the battery cell 3 respectively cooperate with the conical holes 211 on the two conical fixtures. The tabs at the ends of the battery cell 3 are gathered and shaped under the guidance of the conical holes 211, so as to prevent the tabs from affecting the conductive performance of the battery cell due to failure to collapse during flattening, thereby improving the tab flattening efficiency and quality.

[0056] In this embodiment, the two flattening components 22 are both planar fixtures, and the opposing surfaces of the two planar fixtures are both planar and can respectively contact with the two ends of the battery cell 3; Figure 4 and Figure 5 As shown, during the flattening process, the two second driving devices 23 respectively drive the two planar jigs to approach the two ends of the battery cell 3, and the two ends of the battery cell 3 are respectively in contact with the planes of the two planar jigs, so that the ears gathered at the two ends of the battery cell are quickly flattened, with high work efficiency and good quality.

[0057] In this embodiment, the tab flattening device 2 also includes a guide rail 25 and a mounting block 26. The guide rail 25 is installed on the workbench 1, and its length is set along the axial direction of the battery cell 3. The mounting block 26 is slidably installed on the guide rail 25. The pre-pressing assembly 21 and the flattening assembly 22 are both installed on the mounting block 26. The second driving device 23 is connected to the mounting block 26, and is used to drive the mounting block 26 to drive the pre-pressing assembly 21 and the flattening assembly 22 to move along the guide rail 25.

[0058] In this embodiment, Figure 3 As shown, during specific operation, the second driving device 23 drives the mounting block 26 to slide along the guide rail 25, thereby driving the pre-pressing component 21 and the flattening component 22 to move closer to or away from the end of the battery cell 3, and perform gathering and flattening processing. Under the guidance of the guide rail 25, the stability of the movement of the pre-pressing component 21 and the flattening component 22 is improved, thereby improving the efficiency and quality of the tab flattening.

[0059] In this embodiment, at least one groove 41 is provided on the supporting device 4 , and a plurality of grooves 41 are arranged in sequence along the moving direction of the supporting device 4 , and the grooves 41 are used to place the battery cells 3 .

[0060] In this embodiment, Figure 3 As shown, the battery cell 3 is placed in the groove 41 to prevent the battery cell from rolling when the support device 4 moves, which affects the tab flattening effect and efficiency. A plurality of grooves 41 are arranged on the support device. During specific operation, the plurality of grooves 41 on the support device 4 can correspond to place a plurality of battery cells 3. The first driving device 5 drives the support device 4 to drive the plurality of battery cells 3 to move, so that the two second driving devices 23 simultaneously drive the two pre-pressing components 21 and the two flattening components 22 to work simultaneously, and the plurality of battery cells 3 can be continuously gathered and flattened, thereby improving work efficiency.

[0061] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A double-station battery cell tab flattening device, characterized in that: include: A workbench (1) and two tab flattening devices (2), wherein the two tab flattening devices (2) are arranged opposite to each other and are both mounted on the workbench (1), and the two tab flattening devices (2) each comprise a pre-pressing component (21) and a flattening component (22), and the two pre-pressing components (21) and the two flattening components (22) are used to perform a gathering process and a flattening process on the tabs at both ends of a battery cell (3) in sequence; A supporting device (4), the supporting device (4) being installed on the workbench (1) and located between the two tab flattening devices (2), the supporting device (4) being used to place the battery cell (3); A first driving device (5), the first driving device (5) is installed on the workbench (1) and connected to the supporting device (4), the first driving device (5) is used to drive the supporting device (4) to drive the battery cell (3) to move from the gathering processing station to the flattening processing station.

2. A double-station battery cell tab flattening device according to claim 1, characterized in that: The tab flattening device (2) further comprises a second driving device (23), wherein the second driving device (23) is mounted on the workbench (1), the pre-pressing component (21) and the flattening component (22) are arranged in parallel and are both connected to the second driving device (23), and the second driving device (23) is used to drive the pre-pressing component (21) and the flattening component (22) to move toward or away from an adjacent end of the battery cell (3).

3. A double-station battery cell tab flattening device according to claim 2, characterized in that: The tab flattening device (2) further comprises a pressure sensing device (24), wherein the pressure sensing device (24) is electrically connected to the pre-pressing component (21) and the flattening component (22) and is used to detect the pressure exerted by the pre-pressing component (21) and the flattening component (22) on the adjacent end of the battery cell (3), and the pressure sensing device (24) is communicatively connected to the second driving device (23).

4. A double-station battery cell tab flattening device according to claim 2, characterized in that: It also includes a distance detection device (6), which is installed on the workbench (1) and is used to detect the distance between the two ends of the battery cell (3) and the adjacent flattening assembly (22). The distance detection device (6) is communicatively connected to the second drive device (23).

5. A double-station battery cell tab flattening device according to claim 1, characterized in that: It also includes a fixing device (7), which is mounted above the supporting device (4) and is used to fix the battery cells (3) on the gathering processing station and the flattening processing station.

6. A double-station battery cell tab flattening device according to claim 5, characterized in that: The fixing device (7) comprises a bracket (71) and two pressing blocks (72); the bracket (71) is mounted on the workbench (1); the two pressing blocks (72) are respectively located above a gathering processing station and a flattening processing station; the two pressing blocks (72) are respectively connected to a third driving device (73); the two third driving devices (73) are both mounted on the bracket (71) and are respectively used to drive the two pressing blocks (72) to fix the corresponding battery cells (3).

7. A double-station battery cell tab flattening device according to claim 1, characterized in that: The two pre-pressing components (21) are both conical surface jigs, and conical holes (211) are provided on the opposite surfaces of the two conical surface jigs. The two conical holes (211) can match the two ends of the battery core (3).

8. A double-station battery cell tab flattening device according to claim 1, characterized in that: The two flattening components (22) are both planar jigs, and the opposing surfaces of the two planar jigs are both planar and can respectively contact the two ends of the battery core (3).

9. A double-station battery cell tab flattening device according to claim 2, characterized in that: The tab flattening device (2) further comprises a guide rail (25) and a mounting block (26); the guide rail (25) is mounted on the workbench (1) and its length is arranged along the axial direction of the battery cell (3); the mounting block (26) is slidably mounted on the guide rail (25); the pre-pressing assembly (21) and the flattening assembly (22) are both mounted on the mounting block (26); the second driving device (23) is connected to the mounting block (26) and is used to drive the mounting block (26) to drive the pre-pressing assembly (21) and the flattening assembly (22) to move along the guide rail (25).

10. A double-station battery cell tab flattening device according to claim 1, characterized in that: At least one groove (41) is provided on the support device (4), and a plurality of grooves (41) are arranged in sequence along the moving direction of the support device (4), and the grooves (41) are used to place the battery core (3).

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