CN219203429U

CN219203429U - Lug shaping system of battery cell

Info

Publication number: CN219203429U
Application number: CN202223353281.8U
Authority: CN
Inventors: 李梦回; 倪伟; 史方; 王兴东; 余招宇
Original assignee: Rept Battero Energy Co Ltd
Current assignee: Rept Battero Energy Co Ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-06-16
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses a lug shaping system of an electric core, which relates to the technical field of power supply processing and comprises the following components: the positioning platform is used for accommodating the battery cell and is arranged along the sliding rail part in the length direction of the battery cell; the compressing assembly is movably connected with the sliding rail part, can move along the length direction of the battery cell on the sliding rail part, and can compress the battery cell on the positioning platform by stretching; the shaping component is movably connected with the sliding rail part and is used for compressing the tab bundles of the battery cells, and the shaping component is used for moving on the sliding rail part to compress and shape the tab bundles; and the spot welding assembly is movably connected with the sliding rail part and is used for performing pre-spot welding on the tab bundles, and the spot welding assembly moves on the sliding rail part along the length direction of the battery cell. The utility model provides a still include the spot welding device in through utmost point ear plastic system, directly carry out spot welding technology in advance after to the utmost point ear plastic, and then reduced the bad possibility of welding that follow-up welding production produced to reduce the product and take place the probability of scrapping.

Description

Lug shaping system of battery cell

Technical Field

The utility model relates to the technical field of power supply processing, in particular to a tab shaping system.

Background

With the rapid development of the battery field, the types of batteries, such as cylindrical batteries and square batteries, are increasing to meet different use demands in industrial production or daily life. The battery core is used as one of the battery core components, the lug on the battery core is used for enabling the battery core to be electrically connected with the outside, and the lug is required to be welded with other parts in the production process, so that in order to ensure that the quality of a produced mobile power supply product meets the requirements, namely the defective rate is reduced, the flatness of the lug is required to be ensured, the length of the lug is required to meet the preset requirements, and the lug on the raw material battery core is extremely easy to turn over due to the texture reasons, so that various problems such as welding head bonding seat, virtual welding, short circuit, poor internal resistance and the like of the lug welding are caused, and the performance quality of the product is seriously influenced. After the defective products are found in production, the defective products are difficult to reshape and adjust in time, and only the defective products are discharged to a logistics line NG station so as not to influence subsequent production.

Disclosure of Invention

Aiming at the problem that in the prior art, a practitioner is difficult to carry out shaping treatment on defective tabs in time, the utility model aims to provide a tab shaping system of an electric core, which comprises the following components: the positioning platform is used for accommodating the battery cell and moving the battery cell to a preset position; the sliding rail part is arranged along the length direction of the battery cell; the compressing assembly is movably connected with the sliding rail part, can move along the length direction of the battery cell on the sliding rail part, and can compress the battery cell on the positioning platform by stretching;

the shaping component is movably connected with the sliding rail part and used for compressing and shaping the tab bundles of the battery cell, and the shaping component is used for moving on the sliding rail part to compress and shape the tab bundles;

the spot welding assembly is movably connected with the sliding rail part and used for performing pre-spot welding on the tab bundles, and the spot welding assembly moves on the sliding rail part along the length direction of the battery cell.

In some embodiments, the shaping assembly comprises:

one end of the first connecting bracket is embedded in the sliding rail part, and the first connecting bracket can move on the sliding rail part 3 along the length direction of the battery cell;

one end of the shaping driving part is connected with one end of the first connecting bracket, which is far away from the sliding rail part;

the roller part is connected with one end of the shaping driving part, which is further away from the first connecting bracket;

the shaping driving part is used for driving the first connecting bracket and the roller part to move along the length direction of the battery cell, and is also used for driving the roller part to move in the thickness direction of the battery cell, so that the roller part can press the tab bundles of the battery cell.

In some embodiments, the shaping driving part comprises a telescopic cylinder, a driving motor and a transmission rod;

one end of the telescopic cylinder is connected with the first connecting bracket, the other end of the telescopic cylinder is connected with the roller part, and the telescopic cylinder can drive the roller part to press the tab bundle or separate from the tab bundle through the telescopic action in the thickness direction of the battery cell;

the driving motor is connected with the telescopic cylinder through a transmission rod, and the driving motor can drive the telescopic cylinder and the first connecting bracket to move along the length direction of the battery cell through the transmission rod.

In some embodiments, the positioning platform comprises:

the platform main body is provided with a positioning part which is used for accommodating the battery cell and limiting the movement of the battery cell in the length direction;

the movable push plate is assembled on the platform main body and can move on the platform main body, and the movable push plate is used for pushing the battery cell into the positioning part.

In some embodiments, the positioning portion includes: the groove structure is arranged on the top surface of the platform main body.

In some embodiments, the compression assembly comprises:

one end of the second connecting bracket is embedded in the sliding rail part, and the second connecting bracket can move on the sliding rail part along the length direction of the battery cell;

and one end of the compression cylinder is connected with one end of the second connecting support, which is further away from the sliding rail part, a compression fixing plate is arranged at one end of the compression cylinder, which is further away from the second connecting support, and the compression cylinder can drive the compression fixing plate to approach the battery cell main body of the battery cell through expansion so as to compress the battery cell main body.

In some embodiments, the pressing fixing plate has a plate-shaped structure, and a dimension of the pressing fixing plate in a width direction of the battery cell is larger than a dimension of the battery cell in the width direction.

In some embodiments, the spot welding assembly includes:

one end of the spot welding connecting rod is embedded in the sliding rail part and can move along the length direction of the battery cell, and at least one spot welding head is arranged at the other end of the spot welding connecting rod;

the servo motor is connected with the spot welding connecting rod, the spot welding connecting rod is a telescopic rod, and the servo motor is used for driving the spot welding connecting rod to move and stretch in the thickness direction of the electric core so that the spot welding head is close to or far away from the tab bundle of the electric core.

In some embodiments, two spot welding heads are provided on the spot welding connecting rod.

In some embodiments, the slide rail portion includes:

the sliding rail support is positioned above the positioning platform, and the sliding rail main body is arranged on the sliding rail support in a group; and the pressing assembly, the shaping assembly and the spot welding assembly are movably connected with the sliding rail main body.

Compared with the prior art, the tab shaping system provided by the utility model provides the integrated equipment for shaping the tabs for the practitioners, and is convenient for the practitioners to timely shape the discovered defective tabs. Further, the utility model provides a still include the prespeckle device in through utmost point ear plastic system, directly carry out prespeckle technology after the plastic of utmost point ear, and then reduced the bad possibility of welding that follow-up welding production produced to reduce the product and take place the probability of scrapping.

Drawings

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

Fig. 1 is a front view of a tab shaping system in an embodiment of the utility model.

In the figure: 1. positioning a platform; 11. a platform body; 12. moving the push plate; 2. a battery cell; 21. a tab bundle; 22. a cell body; 3. a slide rail portion; 31. a slide rail bracket; 32. a slide rail main body; 4. a compression assembly; 41. a second connection bracket; 42. a compacting cylinder; 43. compressing the fixing plate; 5. a shaping assembly; 51. a first connection bracket; 52. a shaping driving part; 521. a telescopic cylinder; 522. a driving motor; 523. a transmission rod; 53. a roller part; 6. a spot welding assembly; 61. spot welding the connecting rod; 62. spot welding head.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings. The problem that in the prior art, a practitioner is difficult to timely reshape defective tabs is solved.

As shown in fig. 1, the Y direction is set as the longitudinal direction of the cell 2, the X direction is set as the width direction of the cell 2, and the Z direction is set as the thickness direction of the cell 2.

As shown in fig. 1, the present utility model provides a tab shaping system of a battery cell, which includes: the device comprises a positioning platform 1, a sliding rail part 3, a pressing assembly 4, a shaping assembly 5 and a spot welding assembly 6; wherein, the liquid crystal display device comprises a liquid crystal display device,

the positioning platform 1 is used for accommodating the battery cell 2 and moving the battery cell 2 to a preset position; a slide rail portion 3, wherein the slide rail portion 3 is arranged along the length direction of the battery cell 2; the pressing component 4 is movably connected with the sliding rail part 3, the pressing component 4 can move along the length direction of the battery cell 2 on the sliding rail part 3, and the pressing component 4 can press the battery cell 2 on the positioning platform 1 through stretching; the shaping component 5 is movably connected with the sliding rail part 3, the shaping component 5 is used for pressing the tab bundle 21 of the battery cell 2, and the shaping component 5 is used for moving on the sliding rail part 3 to press and shape the tab bundle 21; and the spot welding assembly 6 is movably connected with the sliding rail part 3, the spot welding assembly 6 is used for performing pre-spot welding on the tab bundle 21, and the spot welding assembly 6 can move along the length direction of the battery cell 2 on the sliding rail part 3.

It can be understood that when the tab shaping system is used, firstly, the battery cell 2 is placed on the positioning platform 1, the positioning platform 1 limits the battery cell 2, and the pressing component 4 is controlled to press the battery cell 2 in the thickness direction of the battery cell 2 so as to fix the battery cell 2. Then, the shaping assembly 5 is controlled to press the tab bundle 21 of the battery cell 2, and the tab bundle 21 with the problems of turnover and the like is pressed and shaped by moving the shaping assembly 5 in the sliding rail part 3 along the length direction of the battery cell 2. After the shaping is completed, spot welding operation (pre-spot welding) is performed on the designated position of the tab bundle 21 by using the spot welding assembly 6. After the spot welding action is completed, the pressing assembly 4, the shaping assembly 5 and the spot welding assembly 6 are all far away from the battery core 2, and the process action is restored to the starting state.

Specifically, the shaping assembly 5 comprises: a first connection bracket 51, a plastic driving part 52, and a roller part 53; wherein, the liquid crystal display device comprises a liquid crystal display device,

a first connection bracket 51, one end of which is embedded in the sliding rail part 3, wherein the first connection bracket 51 can move on the sliding rail part 3 along the length direction of the battery cell 2; a shaping driving part 52, one end of which is connected to the end of the first connecting bracket 51 away from the slide rail part 3, and a roller part 53 is connected to the end of the shaping driving part 52 away from the first connecting bracket 51;

the shaping driving part 52 is used for driving the first connecting bracket 51 and the roller part 53 to move along the length direction of the battery cell 2, and driving the roller part 53 to move along the thickness direction of the battery cell 2; so that the roller part 53 can press the tab bundle 21 of the battery cell 2 and shape the tab bundle 21.

It can be understood that, after the shaping driving portion 52 is disposed, the first connection bracket 51 can be driven to move in the sliding rail portion 3, and the shaping driving portion 52 drives the roller portion 53 to move along the length direction of the battery core 2 so as to shape the entire tab bundle 21.

In some preferred embodiments, the shaping driver 52 includes: a telescopic cylinder 521, a driving motor 522, and a driving lever 523; wherein, the liquid crystal display device comprises a liquid crystal display device,

a telescopic cylinder 521, one end of which is connected to the first connection bracket 51 and the other end of which is connected to the roller part 53, the telescopic cylinder 521 being capable of driving the roller part 53 to press the tab bundle 21 or to be separated from the tab bundle 21 by a telescopic action in a thickness direction of the battery cell 2; the driving motor 522 is connected to the telescopic cylinder 521 through a transmission rod 523, and the driving motor 522 can drive the telescopic cylinder 521 and the first connection bracket 51 to move along the length direction of the battery cell 2 through the transmission rod 523.

Preferably, in order to ensure the shaping effect of the roller portion 53, the size of the roller portion 53 in the X direction is 1.2 to 1.5 times the size of the tab bundle 21 in the X direction, and the size of the roller portion 53 in the Z direction is 0.5 to 1.5 times the size of the battery cell 2 in the Z direction. The telescopic cylinder 521 drives the roller part 53 to press against the tab bundle 21, and the pressure between the roller part 53 and the tab bundle 21 can be controlled between 0.2 Mpa and 0.5Mpa during the shaping process. Of course, other motor drive arrangements may be used instead of the telescoping cylinder 521. In this way, the telescopic cylinder 521 controls the up-and-down movement of the roller portion 53 in the Z direction, and the movement of the roller portion 53 on the positioning stage 1 in the Y direction is driven by the driving motor 522 to perform the shaping of each portion of the tab bundle 21.

Further, the roller portion 53 is connected to the telescopic cylinder 521 through a support rod, the support rod is used for conducting pressure to the roller portion 53, and the support rod may be made of any material such as an alloy or carbon fiber.

In some specific embodiments, the positioning platform 1 comprises: a platform body 11 and a moving push plate 12; wherein, the liquid crystal display device comprises a liquid crystal display device,

a platform main body 11 provided with a positioning portion for accommodating the battery cell 2 and restricting movement of the battery cell 2 in the Y direction; and a movable push plate 12, which is assembled on the platform main body 11 and can move on the platform main body 11, wherein the movable push plate 12 is used for pushing the battery cell 2 into the positioning part.

It will be appreciated that the positioning portion is provided to help an operator to move the battery cell 2 to a predetermined processing position more accurately and conveniently, so that the time spent in the whole shaping process is saved, and the battery cell 2 is also subjected to auxiliary limiting to limit the movement which may occur during the process.

Preferably, the positioning portion includes: the groove structure is arranged on the top surface of the platform main body 11 and is used for accommodating the battery cell 2, and limiting the battery cell entering the groove structure in the Y direction and the X direction.

It should be noted that the movable push plate 12 is used to push the battery cell 2 to accurately position the battery cell 2 in the Y-axis direction, and always maintain the state of positioning and pushing the battery cell during the pre-spot welding process, and restore to the initial state after the pre-spot welding operation is completed

In other preferred embodiments, the compression assembly 4 comprises: a second connection bracket 41 and a pressing cylinder 42; wherein, the liquid crystal display device comprises a liquid crystal display device,

a second connecting bracket 41, one end of which is embedded in the sliding rail part 3, wherein the second connecting bracket 41 can move on the sliding rail part 3 along the length direction of the battery cell 2; and one end of the pressing air cylinder 42 is connected with the other end of the second connecting bracket 41, one end, far away from the second connecting bracket 41, of the pressing air cylinder 42 is provided with a pressing fixing plate 43, and the pressing air cylinder 42 can drive the pressing fixing plate 43 to approach the cell main body 22 of the cell 2 through expansion and contraction so as to press the cell main body 22.

It should be noted that, the pressing and fixing plate 43 may be a plate-shaped structure, which is used for pressing the battery cell 2, the bottom surface with the largest area is opposite to the battery cell 2, and the opposite top surface is connected with the pressing cylinder 42 through a telescopic rod, and the pressing and fixing plate 43 and the telescopic rod may be connected by riveting or screw fastening. The pressing fixing plate 43 can be made of any material such as alloy, carbon fiber, hard plastic and the like, the area of the bottom surface of the pressing fixing plate 43 should be referred to the size of the battery cell 2, and the size of the bottom surface of the pressing fixing plate 43 in the X direction should be ensured to be larger than the size of the battery cell 2 in the X direction.

Further, the spot welding assembly 6 includes: a spot welding link 61 and a servo motor; wherein, the liquid crystal display device comprises a liquid crystal display device,

a spot welding connecting rod 61, one end of which is embedded in the sliding rail part 3 and can move along the length direction of the battery core 2, and the other end of the spot welding connecting rod 61 is provided with at least one spot welding head 62; a servo motor (not shown in the figure) is connected to the spot welding link 61, the spot welding link 61 is a telescopic link, and the servo motor is used for driving the spot welding link 61 to move in the Z direction, so that the spot welding head 62 is close to or far from the tab bundle 21 of the battery cell 2.

It should be noted that, the spot welding head 62 may be driven by a servo motor to move up and down in the Z-axis direction to perform spot welding on the tab bundle 2, and meanwhile, the spot welding connecting rod 61 is further connected to a driving motor (not shown), and driven by the driving motor, the spot welding connecting rod 61 may move or stretch in the length direction of the battery cell 2 to adjust the spot welding position of the tab bundle 21.

Preferably, the spot welding head 62 is made of a material with high conductivity such as alloy, high purity metal, etc. and certain hardness, and the spot welding head 62 determines the spot welding number according to the size of the tab bundle of the product tab bundle 21. If spot welding is required for a plurality of areas, a plurality of spot welds (achieved by moving the spot welding link 61 on the slide rail portion 3) may be employed; or a plurality of spot welding heads 62 may be provided to achieve multiple spot welding in a simultaneous spot welding or the like. Because the tab bundles still need to be welded in the subsequent process (ultrasonic welding is adopted in the conventional process), the spot welding position is recommended to be overlapped with the position needing to be welded in the subsequent process, and the spot welding size is not more than the welding area needed in the subsequent process.

As shown in fig. 1, the slide rail portion 3 of the present application includes: a slide rail bracket 31 and a slide rail main body 32, the slide rail bracket 31 being located above the positioning platform 1 (refer to the slide rail bracket 31 being located above the positioning platform 1 in the Z direction); wherein the slide rail main body 32 is assembled on the slide rail bracket 31;

the pressing component 4, the shaping component 5 and the spot welding component 6 are movably connected with the sliding rail main body 32, so that the pressing component 4, the shaping component 5 and the spot welding component 6 can move in the sliding rail main body 32 along the length direction of the battery cell 2.

In some alternative embodiments, the sliding rail bracket 31 is provided with a clamping portion or a buckling portion, so that the sliding rail bracket 31 is detachably fixed with other connectors of the production workshop, and is not required to be directly connected and fixed with the positioning platform 1.

In summary, the tab shaping system provides the integrated device for shaping the tab for the practitioner, so that the practitioner can shape the discovered defective tab in time. Further, the utility model provides a still include the prespeckle device in through utmost point ear plastic system, directly carry out prespeckle technology after the plastic of utmost point ear, and then reduced the bad possibility of welding that follow-up welding production produced to reduce the product and take place the probability of scrapping. And in this application, through slide rail portion 3 with utmost point ear plastic system's plastic subassembly 5, spot welding subassembly 6 and compress tightly subassembly 4 integrated setting together to let above-mentioned three carry out the plastic to utmost point ear bundle 21 according to the plastic process flow of this application, saved the plastic time, improved the production efficiency of electric core.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a utmost point ear plastic system of electric core which characterized in that includes:

the positioning platform (1) is used for accommodating the battery cell (2) and moving the battery cell (2) to a preset position;

the sliding rail part (3), the sliding rail part (3) is arranged along the length direction of the battery cell (2);

the compressing component (4) is movably connected with the sliding rail part (3), the compressing component (4) can move along the length direction of the battery cell (2) on the sliding rail part (3), and the compressing component (4) can compress the battery cell (2) on the positioning platform (1) through stretching;

the shaping component (5) is movably connected with the sliding rail part (3), the shaping component (5) is used for pressing the tab bundle (21) of the battery cell (2), and the shaping component (5) is used for moving on the sliding rail part (3) to press and shape the tab bundle (21);

the spot welding assembly (6) is movably connected with the sliding rail part (3), the spot welding assembly (6) is used for performing pre-spot welding on the tab bundle (21), and the spot welding assembly (6) moves on the sliding rail part (3) along the length direction of the battery cell (2).

2. The tab shaping system according to claim 1, wherein the shaping assembly (5) comprises:

a first connection bracket (51) with one end embedded in the sliding rail part (3), wherein the first connection bracket (51) can move on the sliding rail part (3) along the length direction of the battery cell (2);

a shaping driving part (52) with one end connected with one end of the first connecting bracket (51) far away from the sliding rail part (3);

a roller part (53) connected to one end of the plastic driving part (52) away from the first connecting bracket (51);

the shaping driving part (52) is used for driving the first connecting bracket (51) and the roller part (53) to move along the length direction of the battery cell (2), and the shaping driving part (52) is also used for driving the roller part (53) to move in the thickness direction of the battery cell (2), so that the roller part (53) presses the tab bundle (21) of the battery cell (2).

3. The tab shaping system according to claim 2, wherein the shaping drive (52) comprises:

a telescopic cylinder (521) with one end connected to the first connection bracket (51) and the other end connected to the roller part (53), wherein the telescopic cylinder (521) can drive the roller part (53) to press the tab bundle (21) or separate from the tab bundle (21) by stretching in the thickness direction of the battery cell (2);

the driving motor (522) is connected with the telescopic cylinder (521) through a transmission rod (523), and the driving motor (522) can drive the telescopic cylinder (521) and the first connecting bracket (51) to move along the length direction of the battery cell (2) through the transmission rod (523).

4. Tab shaping system according to claim 1, wherein the positioning platform (1) comprises:

the platform main body (11) is provided with a positioning part which is used for accommodating the battery cell (2) and limiting the movement of the battery cell (2) in the length direction;

the movable push plate (12) is assembled on the platform main body (11) and can move on the platform main body (11), and the movable push plate (12) is used for pushing the battery cell (2) into the positioning part.

5. The tab shaping system of claim 4 wherein the positioning portion comprises: and the groove structure is arranged on the top surface of the platform main body (11).

6. Tab shaping system according to claim 1, wherein the hold-down assembly (4) comprises:

a second connecting bracket (41) with one end embedded in the sliding rail part (3), wherein the second connecting bracket (41) can move on the sliding rail part (3) along the length direction of the battery cell (2);

compressing tightly cylinder (42), its one end with second linking bridge (41) are kept away from the one end of slide rail portion (3) links to each other, compressing tightly one end that second linking bridge (41) were kept away from to cylinder (42) is last to be equipped with one and compress tightly fixed plate (43), compressing tightly cylinder (42) accessible flexible order about compressing tightly fixed plate (43) to electric core main part (22) of electric core (2) are close to in order to compress tightly electric core main part (22).

7. The tab shaping system according to claim 6, wherein the pressing fixing plate (43) has a plate-like structure, and a dimension of the pressing fixing plate (43) in a width direction of the battery cell (2) is larger than a dimension of the battery cell (2) in a width direction thereof.

8. Tab shaping system according to claim 1, wherein the spot welding assembly (6) comprises:

a spot welding connecting rod (61) one end of which is embedded in the sliding rail part (3) and can move along the length direction of the battery core (2), wherein at least one spot welding head (62) is arranged at the other end of the spot welding connecting rod (61);

the servo motor is connected with the spot welding connecting rod (61), the spot welding connecting rod (61) is a telescopic rod, and the servo motor is used for driving the spot welding connecting rod (61) to stretch in the thickness direction of the battery cell (2) so as to enable the spot welding head (62) to be close to or far away from the tab bundle (21) of the battery cell (2).

9. The tab shaping system of claim 8 wherein said spot welding link (61) has two of said spot welding heads (62).

10. The tab shaping system according to claim 8, wherein the slide rail portion (3) comprises: the positioning platform comprises a sliding rail bracket (31) and a sliding rail main body (32), wherein the sliding rail bracket (31) is positioned above the positioning platform (1), and the sliding rail main body (32) is assembled on the sliding rail bracket (31);

the pressing assembly (4), the shaping assembly (5) and the spot welding assembly (6) are movably connected with the sliding rail main body (32).