CN219337474U - Electric core clamping device and electric core clamping equipment - Google Patents

Abstract

The utility model discloses a battery core clamping device and battery core clamping equipment, wherein the battery core clamping device comprises a bracket, a battery core clamping assembly and a lug centralizing assembly, the battery core clamping assembly is arranged on the bracket, the battery core clamping assembly comprises an upper battery core clamp and a lower battery core clamp, and at least one of the upper battery core clamp and the lower battery core clamp can be close to or far away from the other battery core clamp so as to clamp or loosen a battery core; the lug righting component is arranged on the support and used for righting the lug on the positive electrode core so as to support the lug. The battery cell clamping device provided by the utility model can avoid the condition that the battery cells are short-circuited due to the upward tilting of the electrode lugs on the premise of preventing the electrode lugs from sagging.

Description

Electric core clamping device and electric core clamping equipment

Technical Field

The application relates to the technical field of battery cell processing equipment, in particular to a battery cell clamping device and battery cell clamping equipment.

Background

Along with the continuous increase of the capacity of a single battery cell, the thickness and the size of the battery cell are also increased, and the length of the electrode lug on the battery cell is increased, so that the electrode lug on the battery cell is easy to sag under the action of gravity after the lamination of the battery cell is completed.

In the related art, the reinforcing ribs are generally arranged on the electrode lugs to prevent the electrode lugs from sagging under the action of gravity, but the reinforcing ribs are arranged on the electrode lugs, so that the electrode lugs are easy to tilt upwards under the action of the tensile force of the reinforcing ribs, the situation that the electrode lugs are folded in the subsequent process processing is caused, and the short circuit of the electrode core is caused.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a battery core clamping device and battery core clamping equipment, which can avoid the condition that the battery core is short-circuited due to the upward tilting of the tab on the premise of preventing the tab from sagging.

In order to solve the above technical problem, in a first aspect, the present utility model provides a cell clamping device, including:

a bracket;

the battery cell clamping assembly is arranged on the bracket and comprises an upper battery cell clamp and a lower battery cell clamp, and at least one of the upper battery cell clamp and the lower battery cell clamp can be close to or far away from the other battery cell clamp so as to clamp or loosen the battery cell;

the electrode lug centralizing assembly is arranged on the support and used for centralizing the electrode lug on the battery cell so as to support the electrode lug.

In a possible implementation manner of the first aspect, the tab centering assembly includes a driving member and a centering member connected to the driving member, where the driving member is configured to drive the centering member to raise the tab, so as to center the tab on the electrical core.

In a possible implementation manner of the first aspect, the centering member includes a lower tab clip connected to the driving member, and the driving member is configured to drive the lower tab clip to abut against the tab to support the tab.

In a possible implementation manner of the first aspect, the centralizer further includes:

the upper tab clamp is connected with the driving piece, and the driving piece is further used for driving the upper tab clamp to move towards the direction close to the lower tab clamp so as to clamp the tab between the upper tab clamp and the lower tab clamp.

In a possible implementation manner of the first aspect, the driving piece includes an upper tab driving cylinder and a lower tab driving cylinder that are disposed on the support, where the upper tab driving cylinder is connected with the upper tab clamp and is used for driving the upper tab clamp to move close to or away from the lower tab clamp, and the lower tab driving cylinder is connected with the lower tab clamp and is used for driving the lower tab clamp to move close to the upper tab clamp so as to lift the tab.

In a possible implementation manner of the first aspect, the tab centering component further includes a first guide component and a second guide component, where the first guide component and the second guide component each include a guide sliding rail disposed on the support and a guide sliding block matched with the guide sliding rail, a guide of the guide sliding rail of the first guide component is parallel to a moving direction of the upper tab clip, and a guide of the guide sliding rail of the second guide component is parallel to a moving direction of the lower tab clip;

the upper tab clip is arranged on the guide sliding block of the first guide assembly;

the lower tab clip is arranged on the guide slide block of the second guide assembly.

In a possible implementation manner of the first aspect, a limiting member is disposed on the bracket, and the limiting member is used for limiting the maximum displacement of the lower tab clip.

In a possible implementation manner of the first aspect, the end face of the upper cell clamp facing the lower cell clamp and the end face of the lower cell clamp facing the upper cell clamp are both provided with flexible layers.

In a possible implementation manner of the first aspect, the tab centering component includes two groups, and the two groups of tab centering components are disposed on two opposite sides of the electric core clamping component, and are used for centering the tabs at two ends of the electric core.

In a possible implementation manner of the first aspect, the upper core clamp and the lower core clamp each include a plurality of upper core clamps and a plurality of lower core clamps, and the upper core clamps and the lower core clamps are arranged at intervals along the opposite directions of the two groups of tab centering components.

In a second aspect, the present utility model also provides a cell clamping device, including:

a frame;

the battery core clamping device of the first aspect, wherein the bracket is slidably arranged on the frame;

the driving machine is arranged on the frame and connected with the bracket, and is used for driving the bracket to move towards the battery core to be clamped relative to the frame so that the battery core clamping assembly clamps the battery core to be clamped and the tab centering assembly centers the tab.

Compared with the prior art, the application has at least the following beneficial effects:

in this application, through setting up the utmost point ear and right the subassembly, can right the utmost point ear on the electric core to avoided making the utmost point ear appear the condition of sagging under the effect of gravity when electric core centre gripping subassembly centre gripping electric core, and set up the strengthening rib on the utmost point ear in the correlation technique, the utmost point ear in this application is right the subassembly and can be avoided the utmost point ear to appear upwarping the condition, and is visible, the utmost point ear in this application is right the subassembly and can be under the prerequisite that prevents utmost point ear sagging, avoids the utmost point ear to lead to the condition of electric core short circuit because of upwarping.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a pole lug sagging when a battery cell is clamped by a battery cell clamping assembly in the related art according to an embodiment of the present utility model;

fig. 2 is a front view of a battery cell clamping device according to an embodiment of the present utility model when clamping a battery cell;

fig. 3 is a schematic structural diagram of a battery cell when the battery cell clamping device provided by the embodiment of the utility model clamps the battery cell;

fig. 4 is a side view of a cell clamping device according to an embodiment of the present utility model;

fig. 5 is another side view of the cell clamping device according to the embodiment of the present utility model;

fig. 6 is a front view of the battery cell clamping device according to the embodiment of the present utility model when the battery cell is not clamped;

fig. 7 is a top view of a cell clamping device according to an embodiment of the present utility model;

fig. 8 is a schematic structural diagram of a cell clamping device according to an embodiment of the present utility model.

Reference numerals illustrate:

10-an electric core; 20-electrode lugs;

100-a cell clamping device; 110-a bracket; 111-first side; 112-a second side; 120-a cell clamping assembly; 121-upper cell clamps; 122-lower cell clip; 123-driving a cylinder; 124-guiding structure; 125-limiting blocks; 126-briquetting; 1261-a flexible layer; 130-tab righting assembly; 131-a driver; 1311-upper tab drive cylinder; 1312-lower tab drive cylinder; 132-centralizer; 1321-upper tab clip; 1322-lower tab clip; 133-a movable plate; 134-a first guide assembly; 135-limiting piece;

200-cell clamping equipment; 220-drive machine.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

As described in the background art of the present application, in the related art, a reinforcing rib is generally disposed on a tab to prevent the tab from sagging under the action of gravity, however, the reinforcing rib is disposed on the tab, so that the tab is very easy to tilt up under the action of the tensile force of the reinforcing rib, and therefore, the tab is folded during subsequent processing, and the short circuit of the battery core is caused.

In order to solve the technical problems mentioned in the background art, the utility model provides a battery core clamping device and battery core clamping equipment, and the battery core clamping device and the battery core clamping equipment can righting the lugs on the battery core when the battery core clamping assembly clamps the battery core by arranging the lug righting assembly.

The present application is described in detail below by way of specific examples:

referring to fig. 1, 2 and 3 in combination, an embodiment of the present application provides a cell clamping device 100, where the cell clamping device 100 includes a bracket 110, a cell clamping assembly 120 and a tab centering assembly 130, where the cell clamping assembly 120 is disposed on the bracket 110, the cell clamping assembly 120 includes an upper cell clamp 121 and a lower cell clamp 122, and at least one of the upper cell clamp 121 and the lower cell clamp 122 can be close to or far away from the other to clamp or unclamp a cell 10; the tab centering component 130 is disposed on the bracket 110, and the tab centering component 130 is used for centering the tab 20 on the core 10 to support the tab 20.

In the related art, referring to fig. 1, when the battery core clamping assembly 120 clamps the battery core 10, the tab 20 will sag under the action of gravity, so that the battery core 10 is very easy to have a short circuit in the processing process, based on this, referring to fig. 2 and fig. 3, the tab 20 on the battery core 10 can be righted by arranging the tab righting assembly 130, so that the situation that the tab 20 sags under the action of gravity when the battery core clamping assembly 120 clamps the battery core 10 is avoided, and compared with the situation that the tab 20 is provided with a reinforcing rib in the related art, the tab righting assembly 130 in this embodiment can avoid the situation that the tab 20 warps upwards, and therefore, the tab righting assembly 130 in this embodiment can avoid the situation that the tab 20 causes the short circuit of the battery core 10 due to the upward warping under the premise of preventing the tab 20 from sagging.

It should be noted that, the moving directions of the upper and lower core clamps 121 and 122 are not limited, for example, the upper and lower core clamps 121 and 122 move along a vertical direction, or an included angle is formed between the moving directions of the upper and lower core clamps 121 and 122 and the vertical direction, and the included angle may be an acute angle, a right angle or an obtuse angle.

In addition, the position of the tab centering component 130 relative to the cell clamping component 120 is not limited, for example, the tab centering component 130 is disposed on the bracket 110 through the cell clamping component 120, or the tab centering component 130 and the cell clamping component 120 are separately disposed, so long as the tab centering component 130 can center the tab 20.

In practical applications, the order of holding the battery cell 10 by the tab 20 and the cell holding component 120 is not limited, for example, the tab 20 on the battery cell 10 is first held by the tab holding component 130, and then the upper and lower battery cell clamps 121 and 122 are moved towards each other to hold the battery cell 10.

Optionally, referring to fig. 2, the cell clamping assembly 120 further includes a driving cylinder 123, where the driving cylinder 123 is connected to the upper cell clamp 121 and the lower cell clamp 122 to drive at least one of the upper cell clamp 121 and the lower cell clamp 122 to approach or separate from the other to clamp or unclamp the cell 10. Thus, the upper and lower cell clamps 121 and 122 can clamp or unclamp the cell 10 by providing the driving cylinder 123.

The driving cylinder 123 in the above-described structure may be an opening/closing cylinder or a telescopic cylinder.

In order to ensure the stability of the movement of the upper and lower core clamps 121 and 122, optionally, referring to fig. 2, a guide structure 124 is provided on the bracket 110, and the upper and lower core clamps 121 and 122 are respectively disposed on the bracket 110 through the guide structure 124, and the guide of the guide structure 124 is parallel to the movement direction of the upper and lower core clamps 121 and 122, respectively.

In addition, in order to limit the maximum displacement of the upper core clamp 121, optionally, a limiting block 125 is provided on the bracket 110, where the limiting block 125 can prevent the upper core clamp 121 from moving continuously when the upper core clamp 121 moves by a preset displacement, so as to achieve the purpose of limiting the maximum displacement of the upper core clamp 121.

In some possible embodiments, referring to fig. 4, the tab centering assembly 130 includes a driving member 131 and a centering member 132 connected to the driving member 131, where the driving member 131 is configured to drive the centering member 132 to raise the tab 20 to centering the tab 20 on the cell 10.

The driving member 131 may be a driving cylinder or a screw mechanism.

In this embodiment, the driving member 131 is connected to the centering member 132, so that the tab 20 can be centered by the centering member 132 in the process of driving the centering member 132 by the driving member 131.

Of course, the tab centering assembly 130 may also be a centering block disposed on the lower core grip 122.

In addition, the structure of the centering member 132 is varied, and in one possible structure, referring to fig. 4, the centering member 132 includes a lower tab clamp 1322 connected to the driving member 131, and the driving member 131 is used to drive the lower tab clamp 1322 to abut against the tab 20 so as to support the tab 20.

Because the lower tab clamp 1322 is connected with the driving member 131, the driving member 131 can drive the lower tab clamp 1322 to lift or drop, and when the lower tab clamp 1322 lifts the tab 20, the tab 20 on the battery cell 10 can be lifted to be righted. In addition, since the lower tab clip 1322 has a simple structure and is convenient to process, the structure and the processing process of the tab centering assembly 130 can be simplified.

In some possible embodiments, referring to fig. 4, the centering member 132 further includes an upper tab clip 1321, the upper tab clip 1321 is connected to the driving member 131, and the driving member 131 is further configured to drive the upper tab clip 1321 to move in a direction approaching the lower tab clip 1322, so as to clamp the tab 20 between the upper tab clip 1321 and the lower tab clip 1322.

Therefore, by providing the upper tab clamp 1321, the tab 20 can be clamped between the upper tab clamp 1321 and the lower tab clamp 1322, so that the tab 20 can be prevented from sagging, the tab 20 can be prevented from tilting upwards, and the processing yield of the battery cell 10 is further ensured.

Of course, the centering member 132 may also be a plate-like structure provided on the driving end of the driving member 131.

In some possible embodiments, referring to fig. 4, the driving member 131 includes an upper tab driving cylinder 1311 and a lower tab driving cylinder 1312 disposed on the bracket 110, the upper tab driving cylinder 1311 is connected to the upper tab clamp 1321 for driving the upper tab clamp 1321 to move closer to or farther from the lower tab clamp 1322, and the lower tab driving cylinder 1312 is connected to the lower tab clamp 1322 for driving the lower tab clamp 1322 to move closer to the upper tab clamp 1321 to lift the tab 20.

Thus, by providing the upper tab driving cylinder 1311 and the lower tab driving cylinder 1312, the upper tab 20 and the lower tab clamp 1322 can be driven so that the tab 20 is clamped between the upper tab clamp 1321 and the lower tab clamp 1322, respectively.

For compactness of the structure of the cell clamping device 100, optionally, an upper tab driving cylinder 1311 and a lower tab driving cylinder 1312 are disposed at opposite sides of the bracket 110, respectively.

For example, referring to fig. 4 and 5, the bracket 110 has opposite first and second sides 111 and 112, the upper tab driving cylinder 1311, the cell clamping assembly 120, the upper tab clamp 1321 and the lower tab clamp 1322 are all disposed on the first side 111 of the bracket 110, the lower tab driving cylinder 1312 is disposed on the second side 112 of the bracket 110, and the lower tab driving cylinder 1312 is connected to the lower tab clamp 1322 through the movable plate 133.

In some possible embodiments, referring to fig. 4, the tab centering assembly 130 further includes a first guide assembly 134 and a second guide assembly, each of the first guide assembly 134 and the second guide assembly including a guide rail provided on the bracket 110 and a guide slider engaged with the guide rail, the guide rail of the first guide assembly 134 having a guide parallel to the moving direction of the upper tab clip 1321 and the guide rail of the second guide assembly having a guide parallel to the moving direction of the lower tab clip 1322; the upper tab clip 1321 is disposed on the guide slider of the first guide assembly 134; the lower tab clip 1322 is disposed on the guide slider of the second guide assembly.

Because the guide slide rail sets up on support 110, go up tab clamp 1321 and set up on the guide slider of first guide subassembly 134, consequently, when last tab drive cylinder 1311 drives and goes up tab clamp 1321 and remove, go up tab clamp 1321 and can drive the guide slider in the first guide subassembly 134 and slide in the guide slide rail to guaranteed the uniformity and the stability of last tab clamp 1321 travel path, similarly, when tab drive cylinder 1312 drives down tab clamp 1322 and remove, lower tab clamp 1322 can drive the guide slider in the second guide subassembly and slide in the direction spout, guaranteed the uniformity and the stability of lower tab clamp 1322 travel path.

When the lower tab driving cylinder 1312 fails, the lower tab driving cylinder 1312 will drive the lower tab clamp 1322 a greater distance in the presence of the pole, resulting in the tab 20 tilting up, based on which, in some possible embodiments, a stop 135 is provided on the bracket 110, the stop 135 serving to limit the maximum displacement of the lower tab clamp 1322, see fig. 5.

Therefore, in the process of lifting the tab 20 by the tab clamp 1322 under the driving of the tab 20 driving cylinder 123, the situation that the tab 20 is tilted up due to the larger displacement of the lower tab clamp 1322 is avoided, and the effect of righting the tab 20 by the lower tab clamp 1322 is further ensured.

In some possible embodiments, referring to fig. 5, the end face of the upper cell clamp 121 facing the lower cell clamp 122 and the end face of the lower cell clamp 122 facing the upper cell clamp 121 are both provided with a flexible layer 1261.

Therefore, by arranging the flexible layer 1261, when the upper cell clamp 121 and the lower cell clamp 122 clamp the cell 10, a buffer effect is provided between the upper cell clamp 121 and the cell 10 and between the lower cell clamp 122 and the cell 10, so that the damage to the surface of the cell 10 caused by the upper cell clamp 121 and the lower cell clamp 122 is avoided, and the processing effect of the cell 10 is further ensured.

Alternatively, referring to fig. 5, press blocks 126 are provided on both the upper and lower cell clamps 121, 122, and a flexible layer 1261 is provided on the facing surfaces of the press blocks 126 on the upper and lower cell clamps 121, 122. Thus, the press blocks 126 on the upper cell clamp 121 and the press blocks 126 on the lower cell clamp 122 can apply clamping force to the cell 10, and the flexible pad can have a buffering effect on the cell 10.

In order to avoid sagging of the tabs 20 at the two ends of the battery 10, in some possible embodiments, the tab centering components 130 include two sets of tab centering components 130 disposed at opposite sides of the battery clamping component 120 for centering the tabs 20 at the two ends of the battery 10.

Because the two sets of tab centering components 130 are disposed on opposite sides of the battery core clamping component 120, when the two ends of the battery core 10 are all provided with the tabs 20, the two sets of tab centering components 130 can respectively center the tabs 20 at the two ends of the battery core 10, thereby ensuring the processing effect of the battery core 10.

When the size of the battery cell 10 is large, when one upper battery cell clamp 121 and one lower battery cell clamp 122 are matched with each other to clamp the battery cell 10, it is extremely difficult to ensure the clamping effect of the battery cell 10, based on this, in some possible embodiments, referring to fig. 7 (since the upper battery cell clamp 121 covers the lower battery cell clamp 122 in the top view of the battery cell clamping device, in order to respectively represent the schematic diagrams of the plurality of upper battery cell clamps 121 and the plurality of lower battery cell clamps 122, reference numeral "121 (122)" is used to represent the schematic diagrams of the plurality of lower battery cell clamps 122, and (122) represents the lower battery cell clamps 122), each of the upper battery cell clamps 121 and the lower battery cell clamps 122 includes a plurality of upper battery cell clamps 121 and a plurality of lower battery cell clamps 122 are disposed at intervals along the opposite directions of the two sets of tab centering assemblies 130.

It should be noted that, the opposite directions along the two sets of tab centering assemblies 130 refer to the longitudinal direction of the battery cell 10, that is, the direction indicated by the arrow X in fig. 7.

Therefore, through the arrangement of the plurality of upper cell clamps 121 and the plurality of lower cell clamps 122, the electric cells 10 can be clamped at intervals along the length direction of the electric cells 10, so that the uniformity of stress of the electric cells 10 in a clamping state can be ensured, and the clamping effect of the electric cells 10 can be ensured.

Referring to fig. 8, the embodiment of the present application further provides a battery cell clamping device 200, where the battery cell clamping device 200 includes a frame, a battery cell clamping device 100, and a driving machine 220, and the bracket 110 is slidably disposed on the frame; the driving machine 220 is disposed on the frame and connected to the bracket 110, and the driving machine 220 is used for driving the bracket 110 to move towards the to-be-clamped battery cell 10 relative to the frame, so that the battery cell clamping assembly 120 clamps the to-be-clamped battery cell 10 and the tab centering assembly 130 centering the tab 20.

The cell clamping device 100 in the embodiment of the present application may have the same structure as any one of the cell clamping devices 100 in the above embodiment, and may bring about the same or similar beneficial effects, and specifically, reference may be made to the description in the above embodiment, which is not repeated herein.

In actual operation of the cell clamping device 200, the driver 220 drives the support 110 to move towards the cell 10 to be clamped, meanwhile, the support 110 can drive the cell clamping assembly 120 and the tab centering assembly 130 to synchronously move towards the cell 10 to be clamped, then the tab centering assembly 130 centers the tab 20 of the cell 10 to be clamped, the upper cell clamp 121 and the lower cell clamp 122 in the cell clamping assembly 120 clamp the cell 10 to be clamped, and finally the driver 220 drives the support 110 to move the clamped cell 10 to a preset station for processing.

Therefore, the battery cell clamping device 200 in this embodiment adopts the above-mentioned battery cell clamping device 100, so that the situation that the tab 20 on the battery cell 10 sags can be avoided in the process of clamping and moving the battery cell 10, and the processing effect of the battery cell 10 is further ensured.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (11)

1. A cell clamping device, comprising:

a bracket (110);

a cell clamping assembly (120), wherein the cell clamping assembly (120) is arranged on the bracket (110), the cell clamping assembly (120) comprises an upper cell clamp (121) and a lower cell clamp (122), and at least one of the upper cell clamp (121) and the lower cell clamp (122) can be close to or far away from the other to clamp or unclamp the cell (10);

the electrode lug centering assembly (130), the electrode lug centering assembly (130) is arranged on the support (110), and the electrode lug centering assembly (130) is used for centering the electrode lug (20) on the battery cell (10) so as to support the electrode lug (20).

2. The cell clamping device according to claim 1, wherein the tab centering assembly (130) comprises a driving member (131) and a centering member (132) connected to the driving member (131), and the driving member (131) is configured to drive the centering member (132) to raise the tab so as to center the tab (20) on the cell (10).

3. The cell clamping device according to claim 2, wherein the righting member (132) comprises a lower tab clamp (1322) connected to the driving member (131), and the driving member (131) is configured to drive the lower tab clamp (1322) against the tab (20) to support the tab (20).

4. The cell clamping device of claim 3, wherein the centralizer (132) further comprises:

the upper tab clamp (1321), the upper tab clamp (1321) is connected with the driving piece (131), the driving piece (131) is further used for driving the upper tab clamp (1321) to move towards a direction close to the lower tab clamp (1322), so that the tab (20) is clamped between the upper tab clamp (1321) and the lower tab clamp (1322).

5. The cell clamping device according to claim 4, wherein the driving member (131) comprises an upper tab driving cylinder (1311) and a lower tab driving cylinder (1312) which are arranged on the bracket (110), the upper tab driving cylinder (1311) is connected with the upper tab clamp (1321) and is used for driving the upper tab clamp (1321) to move close to or away from the lower tab clamp (1322), and the lower tab driving cylinder (1312) is connected with the lower tab clamp (1322) and is used for driving the lower tab clamp (1322) to move close to the upper tab clamp (1321) so as to lift the tab (20).

6. The cell clamping device according to claim 5, wherein the tab centering component (130) further comprises a first guide component (134) and a second guide component, the first guide component (134) and the second guide component each comprise a guide slide rail arranged on the bracket (110) and a guide slide block matched with the guide slide rail, the guide of the guide slide rail of the first guide component (134) is parallel to the moving direction of the upper tab clamp (1321), and the guide of the guide slide rail of the second guide component is parallel to the moving direction of the lower tab clamp (1322);

the upper tab clip (1321) is arranged on the guide slide block of the first guide component (134);

the lower tab clip (1322) is disposed on the guide slider of the second guide assembly.

7. The cell clamping device according to claim 5, wherein a limiting member (135) is provided on the bracket (110), the limiting member (135) being configured to limit a maximum displacement of the lower tab clamp (1322).

8. The cell clamping device according to any of claims 1-7, characterized in that the end face of the upper cell clamp (121) facing the lower cell clamp (122) and the end face of the lower cell clamp (122) facing the upper cell clamp (121) are both provided with a flexible layer (1261).

9. The cell clamping device according to any one of claims 1-7, wherein the tab centering assembly (130) comprises two sets, and the two sets of tab centering assemblies (130) are disposed on opposite sides of the cell clamping assembly (120) for centering the tabs (20) at both ends of the cell (10).

10. The cell clamping device according to claim 9, wherein the upper cell clamp (121) and the lower cell clamp (122) each comprise a plurality of upper cell clamps (121) and a plurality of lower cell clamps (122) which are arranged at intervals along the opposite directions of the two sets of tab centering components (130).

11. A cell clamping device, comprising:

a frame;

the cell clamping device (100) of any of claims 1-10, the bracket (110) being slidably disposed on the frame;

the driving machine (220) is arranged on the frame and is connected with the bracket (110), and the driving machine (220) is used for driving the bracket (110) to move towards the battery core to be clamped relative to the frame so that the battery core clamping assembly (120) clamps the battery core to be clamped and the lug centering assembly (130) centers the lug (20).

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