Battery cell tab position keeping mechanism and battery cell transferring device

Abstract

The utility model discloses a battery cell tab position retaining mechanism and discloses a battery cell transfer device with the battery cell tab position retaining mechanism, the battery cell tab position retaining mechanism comprises a mounting frame, a transmission part and a driving assembly, the transmission part is arranged on the mounting frame in a sliding mode, a first pressing part is arranged on the transmission part, and a second pressing part is arranged on the driving assembly. The first pressing piece is used for abutting against an insulating cap on a battery cell tab; the driving assembly comprises an elastic piece, and the elastic piece is arranged between the installation frame and the transmission piece and used for extruding the transmission piece so that the first pressing piece can continuously abut against the insulation cap to prevent the insulation cap from falling off. The battery cell tab position keeping mechanism can continuously keep abutting against an insulation cap on a battery cell tab in the battery cell transferring process, so that the position of the battery cell tab is kept unchanged in the process that a battery cell assembled with the insulation cap is transferred to a welding station, and the subsequent battery cell tab welding quality is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of battery production equipment, and in particular to a battery cell tab position holding mechanism and a battery cell transfer device. Background Technology

[0002] During the battery manufacturing process, the positive and negative terminals of the battery must be strictly insulated to avoid short circuits caused by internal or external contact.

[0003] To better protect the battery tabs, insulating caps are usually installed on the battery tabs (such as the top of cylindrical batteries or the tabs of square batteries) to block the direct contact between the battery's metal parts and the external environment, preventing the risk of short circuits caused by collisions, squeezing, or foreign object intrusion.

[0004] In related technologies, the electrode tabs need to be bent into a "Z" shape before the insulating cap is assembled, and then the insulating cap is put on to complete the assembly. After the insulating cap is on, the battery cell needs to be transported to the welding station for welding.

[0005] However, because welding requires high precision in the position of the battery cell tabs, if the insulating cap falls off or shifts in position during the process of transferring the battery cell with the insulating cap assembled to the welding station, it will have a significant impact on the subsequent welding quality. Utility Model Content

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a battery cell tab position holding mechanism, which can continuously maintain the insulating cap on the battery cell tab during the battery cell transfer process, so as to ensure that the battery cell tab position remains unchanged during the process of transferring the battery cell with the insulating cap assembled to the welding station, thereby improving the subsequent battery cell tab welding quality.

[0007] This utility model also proposes a battery cell transfer device having the above-mentioned battery cell tab position holding mechanism.

[0008] According to a first aspect embodiment of the present invention, a battery cell tab position holding mechanism includes:

[0009] Mounting rack;

[0010] A transmission component is slidably mounted on the mounting bracket. A first clamping component is provided on the transmission component, and the first clamping component is used to abut against the insulating cap on the battery cell tab.

[0011] The drive assembly includes an elastic element disposed between the mounting bracket and the transmission member, the elastic element being used to compress the transmission member to continuously press the first clamping member against the insulating cap to prevent it from detaching.

[0012] The battery cell tab position holding mechanism according to the embodiment of this utility model has at least the following beneficial effects:

[0013] This utility model comprises a mounting frame, a transmission component, and a drive assembly. The transmission component is slidably mounted on the mounting frame and has a first clamping component that abuts against the insulating cap on the battery cell tab. The drive assembly includes an elastic component positioned between the mounting frame and the transmission component. The elastic component compresses the transmission component to ensure that the first clamping component continuously presses against the insulating cap to prevent it from detaching. Understandably, the compression action of the elastic component causes the first clamping component to continuously press against the insulating cap with appropriate pressure, preventing the insulating cap from detaching from the battery cell tab and preventing the battery cell from shifting position. This ensures that the battery cell tab position remains unchanged during the process of transferring the battery cell with the insulating cap assembled to the welding station, thereby improving the subsequent welding quality of the battery cell tab.

[0014] According to some embodiments of the present invention, the drive assembly further includes an eccentric wheel, which is rotatably mounted on the mounting bracket and is used to push the transmission member to disengage the first clamping member from the insulating cap.

[0015] The advantages of this invention are: by setting an eccentric wheel, which is rotatably mounted on the mounting frame, the eccentric wheel is used to push the transmission component to disengage the first clamping component from the insulating cap. It can be understood that the eccentric wheel abuts against the transmission component. When the eccentric wheel rotates, the trajectory of the contact point between the eccentric wheel and the transmission component is used to push the transmission component, so that the transmission component overcomes the elastic force of the elastic component and moves to drive the first clamping component to disengage from the insulating cap. Thus, it is convenient to eliminate the interference of the first clamping component on the insulating cap when loading or unloading the battery cell.

[0016] According to some embodiments of this utility model, the mounting bracket is provided with a guide rod, and the transmission component is provided with a guide hole, the guide hole cooperating with the guide rod for guidance.

[0017] The advantages of this invention are: by providing a guide rod on the mounting frame and a guide hole on the transmission component, the guide hole and the guide rod cooperate to guide the transmission component, thereby making the installation and sliding of the transmission component on the mounting frame more stable, and thus making the pressure of the first clamping component on the insulating cap more stable.

[0018] According to some embodiments of the present invention, the mounting bracket has a first boss, the guide rod passes through the first boss, the elastic element is configured as a spring, the spring is sleeved outside the guide rod, one end of the spring abuts against the first boss, and the other end of the spring abuts against the transmission element.

[0019] The advantages of this invention are: by setting a first protrusion in the mounting bracket, a guide rod passing through the first protrusion, and setting the elastic element as a spring, with the spring sleeved outside the guide rod, one end of the spring abutting against the first protrusion and the other end of the spring abutting against the transmission component, it can be understood that the first protrusion can provide a support point for the elastic element, and at the same time, the guide rod can limit the elastic element set as a spring, thereby making the elastic element more stable between the mounting bracket and the transmission component.

[0020] According to some embodiments of the present invention, the guide rod is threadedly connected and fixed to the first boss.

[0021] The advantages are: by fixing the guide rod to the first boss through a threaded connection, it can be understood that, on the one hand, the guide rod and the first boss can be fixed through a threaded connection, thereby making the guide rod more secure on the first boss; on the other hand, it facilitates the installation and removal of the guide rod on the first boss, thus facilitating the installation, removal and replacement of the spring.

[0022] According to some embodiments of the present invention, the transmission component includes a sliding plate portion and an inclined plate portion. The transmission component is provided with a clearance groove that passes through the sliding plate portion and the inclined plate portion. The clearance groove is used to avoid the first boss, the guide rod and the spring. One end of the spring abuts against the side of the clearance groove near the sliding plate portion. The inclined plate portion is axially offset from the guide rod to avoid the guide rod.

[0023] The advantages of this invention are: by setting the transmission component as a sliding plate part and an inclined plate part, the transmission component is provided with a clearance groove that passes through the sliding plate part and the inclined plate part. The clearance groove is used to avoid the first boss, the guide rod and the spring. One end of the spring abuts against the side of the clearance groove near the sliding plate part. The inclined plate part is axially offset from the guide rod to avoid the guide rod. It should be explained that the axial offset between the inclined plate part and the guide rod means that the inclined plate part and the axial direction of the guide rod are tilted at an angle. It can be understood that the inclined plate part extends at an angle, so that the inclined plate part can tilt and deviate from the axial space of the guide rod, thereby allowing the inclined plate part to avoid the guide rod. In addition, the transmission component is prevented from interfering with the axial movement of the guide rod, which facilitates the disassembly and assembly of the guide rod.

[0024] According to some embodiments of the present invention, the transmission member is further provided with a second pressing member, which abuts against the insulating cap on the battery cell tab and the first pressing member respectively to press the insulating cap.

[0025] The advantage of this invention is that by further providing a second clamping member on the transmission component, the second clamping member and the first clamping member respectively abut against the insulating cap on the battery cell tab to press the insulating cap, thereby making the pressing of the insulating cap on the battery cell tab by the cooperation of the first clamping member and the second clamping member more stable.

[0026] According to a second aspect embodiment of the present invention, a battery cell transfer device includes a battery cell tab position holding mechanism, a battery cell gripping mechanism, and a transfer module as described in the first aspect embodiment of the present invention. The battery cell gripping mechanism includes a vacuum adsorption fixture for vacuum gripping of the battery cell. The battery cell tab position holding mechanism is disposed on the battery cell gripping mechanism. The transfer module is used to transfer the battery cell gripping mechanism to a welding station.

[0027] The battery cell transfer device according to the embodiments of the present invention has at least the following beneficial effects:

[0028] 1. This utility model provides a battery cell tab position holding mechanism, which includes a mounting frame, a transmission component, and a drive assembly. The transmission component is slidably mounted on the mounting frame and has a first clamping component that abuts against the insulating cap on the battery cell tab. The drive assembly includes an elastic component positioned between the mounting frame and the transmission component. The elastic component compresses the transmission component to ensure that the first clamping component continuously presses against the insulating cap to prevent it from detaching. Understandably, the compression action of the elastic component causes the first clamping component to continuously press against the insulating cap with appropriate pressure, preventing the insulating cap from detaching from the battery cell tab and the battery cell from shifting position. This ensures that the battery cell tab position remains unchanged during the process of transferring the battery cell with the insulating cap assembled to the welding station, improving the subsequent battery cell tab welding quality.

[0029] 2. This utility model, by setting up a battery cell gripping mechanism, includes a vacuum adsorption fixture for vacuum gripping of the battery cell, thereby facilitating the stable gripping of the battery cell by the battery cell transfer device and avoiding damage to the battery cell during gripping, thus promoting the smooth transfer of the battery cell.

[0030] 3. This utility model, by setting up a transfer module, has a cell tab position holding mechanism set on the cell gripping mechanism. The transfer module is used to transfer the cell gripping mechanism to the welding station, thereby enabling the transfer module to synchronously transfer the cell gripping mechanism and the cell tab position holding mechanism to the welding station. Consequently, during the process of transferring the cell to the welding station, the cell tab position holding mechanism can move synchronously with the cell and keep the cell tab position unchanged.

[0031] According to some embodiments of the present invention, the battery cell gripping mechanism further includes a first gripper, which is used to abut against the insulating cap on the battery cell tab to limit the battery cell tab.

[0032] The advantage of this invention is that by setting a first gripper in the battery cell gripping mechanism, the first gripper is used to abut against the insulating cap on the battery cell tab to limit the battery cell tab, thereby facilitating the alignment of the vacuum adsorption fixture to grip and position the battery cell, and thus making the position of the battery cell in the battery cell gripping mechanism more accurate.

[0033] According to some embodiments of the present invention, the battery cell gripping mechanism further includes an unloading component and a first cylinder for driving the unloading component to rise and fall. The first cylinder drives the unloading component to fall so that the unloading component pushes the battery cell away from the vacuum adsorption fixture.

[0034] The advantages of this invention are: by setting a material unloading component and a first cylinder to drive the material unloading component to rise and fall in the cell gripping mechanism, the first cylinder drives the material unloading component to fall so that the material unloading component pushes the cell away from the vacuum adsorption fixture, thereby facilitating the use of the material unloading component to assist in unloading the cell. Furthermore, the unloading of the cell by the cell gripping mechanism is more stable, avoiding the displacement of the cell tabs during the unloading process, and helping the cell tabs to remain in a constant position during the unloading process.

[0035] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of the battery cell transfer device according to an embodiment of the present invention;

[0038] Figure 2 for Figure 1 The diagram shows the structure of the battery cell tab position holding mechanism;

[0039] Figure 3 for Figure 2 The enlarged view of point A is shown.

[0040] Reference numerals: 100-mounting bracket, 110-transmission component, 120-first clamping component, 130-drive assembly, 140-elastic component, 150-eccentric wheel, 160-guide rod, 170-first boss, 180-slide plate, 190-inclined plate, 200-avoidance groove, 210-second clamping component, 220-cell gripping mechanism, 230-transfer module, 240-vacuum adsorption fixture, 250-first gripper, 260-unloading component, 270-first cylinder. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 this utility model.

[0043] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] The following describes, with reference to the accompanying drawings, a battery cell tab position holding mechanism and a battery cell transfer device according to embodiments of the present invention.

[0046] This utility model aims to provide embodiments of a battery cell tab position holding mechanism and a battery cell transfer device.

[0047] Reference Figure 1 In this embodiment, the battery cell transfer device includes a battery cell tab position holding mechanism, a battery cell gripping mechanism 220, and a transfer module 230.

[0048] Reference Figure 2 and Figure 3 The battery cell tab position holding mechanism of this utility model includes a mounting bracket 100, a transmission component 110, and a drive assembly 130.

[0049] For the transmission component 110, the transmission component 110 is slidably mounted on the mounting bracket 100, and the transmission component 110 is provided with a first clamping component 120, which is used to abut against the insulating cap on the battery cell tab.

[0050] For the drive assembly 130, the drive assembly 130 includes an elastic element 140 disposed between the mounting bracket 100 and the transmission member 110. The elastic element 140 is used to squeeze the transmission member 110 so that the first clamping member 120 continuously presses against the insulating cap to prevent it from falling off.

[0051] This embodiment includes a mounting frame 100, a transmission component 110, and a drive assembly 130. The transmission component 110 is slidably mounted on the mounting frame 100 and has a first clamping component 120. The first clamping component 120 is used to abut against the insulating cap on the battery cell tab. The drive assembly 130 includes an elastic component 140, which is disposed between the mounting frame 100 and the transmission component 110. The elastic component 140 is used to squeeze the transmission component 110 so that the first clamping component 120 continuously presses against the insulating cap to prevent it from falling off. It can be understood that the transmission component 110 is squeezed by the elastic component 140, which drives the first clamping component 120 to continuously press against the insulating cap with a suitable pressure, preventing the insulating cap from falling off the battery cell tab and the battery cell from shifting position. This ensures that the position of the battery cell tab remains unchanged during the process of transferring the battery cell with the insulating cap assembled to the welding station, thereby improving the subsequent welding quality of the battery cell tab.

[0052] Specifically, the elastic element 140 can be configured as a spring, sheet, or other elastic component.

[0053] In some specific embodiments, the mounting bracket 100 is provided with a guide rod 160, and the transmission component 110 is provided with a guide hole. The guide hole cooperates with the guide rod 160 for guidance, thereby making the installation and sliding of the transmission component 110 on the mounting bracket 100 more stable, and further making the pressure of the first clamping member 120 on the insulating cap more stable.

[0054] Furthermore, the mounting bracket 100 has a first boss 170, a guide rod 160 passes through the first boss 170, and an elastic element 140 is configured as a spring. The spring is sleeved outside the guide rod 160, with one end of the spring abutting against the first boss 170 and the other end of the spring abutting against the transmission element 110.

[0055] Understandably, the first boss 170 can provide a support point for the elastic member 140, while the guide rod 160 can limit the elastic member 140, which is configured as a spring, thereby making the elastic member 140 more stable between the mounting bracket 100 and the transmission member 110.

[0056] Specifically, the guide rod 160 is threadedly connected and fixed to the first boss 170.

[0057] Understandably, on the one hand, the guide rod 160 and the first boss 170 can be fixed by a threaded connection, which makes the guide rod more secure on the first boss 170. On the other hand, it facilitates the installation and removal of the guide rod 160 from the first boss 170, which is beneficial for the installation, removal and replacement of the spring.

[0058] Furthermore, a first nut is threaded onto the guide rod 160. The first nut is located on the side of the first boss 170 facing away from the spring. The first nut abuts against the first boss 170 to fix the guide rod 160 and the first boss 170, thereby making the guide rod 160 and the first boss 170 more stable.

[0059] In some specific embodiments, the transmission member 110 includes a sliding plate portion 180 and an inclined plate portion 190. The transmission member 110 is provided with a clearance groove 200 that passes through the sliding plate portion 180 and the inclined plate portion. The clearance groove 200 is used to avoid the first boss 170, the guide rod 160 and the spring. One end of the spring abuts against the side of the clearance groove 200 near the sliding plate portion 180. The inclined plate portion 190 is axially offset from the guide rod 160 to avoid the guide rod 160.

[0060] It should be explained that the axial offset of the inclined plate portion 190 and the guide rod 160 means that the axial direction of the inclined plate portion 190 and the guide rod 160 is tilted at an angle. It can be understood that the inclined plate portion 190 extends at an angle, so that the inclined plate portion 190 can tilt and offset the axial space of the guide rod 160, thereby allowing the inclined plate portion 190 to avoid the guide rod 160, and thus avoid the transmission component 110 from interfering with the axial movement of the guide rod 160, which facilitates the disassembly and assembly of the guide rod 160.

[0061] Furthermore, the first clamping member 120 is disposed on the side of the inclined plate portion 190 away from the sliding plate portion 180.

[0062] In some specific embodiments, the transmission member 110 is further provided with a second pressing member 210, which abuts against the insulating cap on the battery cell tab and the first pressing member 120 respectively to press the insulating cap, thereby making the pressing of the insulating cap on the battery cell tab by the first pressing member 120 and the second pressing member 210 more stable.

[0063] In some specific embodiments, the drive assembly 130 further includes an eccentric wheel 150, which is rotatably mounted on the mounting bracket 100 and is used to push the transmission member 110 to disengage the first clamping member 120 from the insulating cap.

[0064] It is understandable that the eccentric wheel 150 abuts against the transmission component 110. When the eccentric wheel 150 rotates, the trajectory of the contact point between the eccentric wheel 150 and the transmission component 110 is used to push the transmission component 110, so that the transmission component 110 overcomes the elastic force of the elastic component 140 and moves to drive the first clamping component 120 to disengage and loosen the insulating cap. Thus, it is convenient to eliminate the interference of the first clamping component 120 on the insulating cap when loading or unloading the battery cell.

[0065] Specifically, the eccentric wheel 150 abuts against the side of the transmission member 110 opposite to the first clamping member 120, thereby facilitating the eccentric wheel 150 to push the transmission member 110 to overcome the elastic force of the elastic member 140 and drive the first clamping member 120 to disengage from the insulating cap.

[0066] In some specific embodiments, the drive assembly 130 further includes a first motor for driving the eccentric wheel 150 to rotate.

[0067] The battery cell gripping mechanism 220 includes a vacuum adsorption fixture 240, which is used to grip the battery cell in a vacuum.

[0068] This embodiment sets up a battery cell gripping mechanism 220, which includes a vacuum adsorption fixture 240. The vacuum adsorption fixture 240 is used to grip the battery cell in a vacuum, which helps the battery cell transfer device to grip the battery cell stably and avoids damage to the battery cell when gripping it, thereby facilitating the smooth transfer of the battery cell.

[0069] Specifically, the mounting bracket 100 is fixed on the cell gripping mechanism 220.

[0070] In some specific embodiments, the battery cell gripping mechanism 220 further includes a first gripper 250, which is used to abut against the insulating cap on the battery cell tab to limit the battery cell tab, thereby facilitating the alignment of the vacuum adsorption fixture 240 with the battery cell gripping and positioning, and thus making the position of the battery cell in the battery cell gripping mechanism 220 more accurate.

[0071] In some specific embodiments, the cell gripping mechanism 220 further includes an unloading component 260 and a first cylinder 270 that drives the unloading component 260 to rise and fall. The first cylinder 270 drives the unloading component 260 to fall so that the unloading component 260 pushes the cell away from the vacuum adsorption fixture 240. This facilitates the use of the unloading component 260 to assist in unloading the cell. Consequently, the unloading of the cell by the cell gripping mechanism 220 is more stable, preventing the cell tabs from shifting position during unloading by the cell gripping mechanism 220, and helping the cell tabs to maintain their position during the unloading process.

[0072] For the transfer module 230, the cell tab position holding mechanism is set on the cell gripping mechanism 220, and the transfer module 230 is used to transfer the cell gripping mechanism 220 to the welding station.

[0073] In this embodiment, a transfer module 230 is provided, and the cell tab position holding mechanism is provided on the cell gripping mechanism 220. The transfer module 230 is used to transfer the cell gripping mechanism 220 to the welding station. Thus, the transfer module 230 can synchronously transfer the cell gripping mechanism 220 and the cell tab position holding mechanism to the welding station. Consequently, during the process of transferring the cell to the welding station, the cell tab position holding mechanism can move synchronously with the cell and keep the cell tab position unchanged.

[0074] Specifically, the transfer module 230 includes a frame, a slide rail, a translation seat, a first screw, and a second motor. The slide rail extends horizontally on the frame, the translation seat is slidably mounted on the slide rail, and the cell gripping mechanism 220 is mounted on the translation seat. The first screw is rotatably connected to the frame and threadedly connected to the translation seat. The second motor is used to drive the first screw to rotate in order to move the translation seat, thereby facilitating the transfer module 230 to transfer the cell gripping mechanism 220 to the welding station.

[0075] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] The terms "first," "second," "third," "fourth," etc. (if applicable) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0077] It should also be noted that, in the description of this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0078] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0079] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0080] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A battery cell tab position holding mechanism, characterized in that, include: Mounting bracket (100); A transmission component (110) is slidably disposed on the mounting bracket (100), and a first clamping component (120) is disposed on the transmission component (110), the first clamping component (120) being used to abut against the insulating cap on the battery cell tab; The drive assembly (130) includes an elastic element (140) disposed between the mounting bracket (100) and the transmission member (110), the elastic element (140) being used to compress the transmission member (110) so that the first clamping member (120) continuously presses against the insulating cap to prevent it from falling off.

2. The cell tab position holding mechanism according to claim 1, characterized in that, The drive assembly (130) also includes an eccentric wheel (150) rotatably mounted on the mounting bracket (100) and used to push the transmission member (110) to disengage the first clamping member (120) from the release cap.

3. The battery cell tab position holding mechanism according to claim 1, characterized in that, The mounting bracket (100) is provided with a guide rod (160), and the transmission component (110) is provided with a guide hole, which cooperates with the guide rod (160) for guidance.

4. The battery cell tab position holding mechanism according to claim 3, characterized in that, The mounting bracket (100) has a first boss (170), the guide rod (160) passes through the first boss (170), the elastic element (140) is configured as a spring, the spring is fitted outside the guide rod (160), one end of the spring abuts against the first boss (170), and the other end of the spring abuts against the transmission element (110).

5. The cell tab position holding mechanism according to claim 4, characterized in that, The guide rod (160) is threadedly connected and fixed to the first boss (170).

6. The cell tab position holding mechanism according to claim 5, characterized in that, The transmission component (110) includes a sliding plate portion (180) and an inclined plate portion (190). The transmission component (110) is provided with a clearance groove (200) that passes through the sliding plate portion (180) and the inclined plate portion. The clearance groove (200) is used to avoid the first boss (170), the guide rod (160) and the spring. One end of the spring abuts against the side of the clearance groove (200) near the sliding plate portion (180). The inclined plate portion (190) is axially offset from the guide rod (160) to avoid the guide rod (160).

7. The cell tab position holding mechanism according to claim 1, characterized in that, The transmission component (110) is also provided with a second clamping component (210), which abuts against the insulating cap on the battery cell tab and the first clamping component (120) respectively to press the insulating cap.

8. A cell transfer device, characterized in that, The device includes a battery cell tab position holding mechanism, a battery cell gripping mechanism (220), and a transfer module (230) as described in any one of claims 1 to 7. The battery cell gripping mechanism (220) includes a vacuum adsorption fixture (240) for vacuum gripping of the battery cell. The battery cell tab position holding mechanism is disposed on the battery cell gripping mechanism (220). The transfer module (230) is used to transfer the battery cell gripping mechanism (220) to the welding station.

9. The cell transfer device according to claim 8, characterized in that, The battery cell gripping mechanism (220) further includes a first gripper (250), which is used to abut against the insulating cap on the battery cell tab to limit the battery cell tab.

10. The cell transfer device according to claim 8, characterized in that, The cell gripping mechanism (220) further includes a discharge component (260) and a first cylinder (270) for driving the discharge component (260) to rise and fall. The first cylinder (270) drives the discharge component (260) to fall so that the discharge component (260) pushes the cell away from the vacuum adsorption fixture (240).

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