CN220348183U

CN220348183U - Cell clamp and cell module stacking device

Info

Publication number: CN220348183U
Application number: CN202321577550.0U
Authority: CN
Inventors: 冉昌林; 蔡汉钢; 王高鹏
Original assignee: Wuhan Yifei Technology Co ltd; Wuhan Yifi Laser Corp Ltd
Current assignee: Wuhan Yifei Technology Co ltd; Wuhan Yifi Laser Corp Ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2024-01-16
Anticipated expiration: 2033-06-19

Abstract

The utility model relates to the technical field of battery cell production, and provides a battery cell clamp and a battery cell module stacking device, wherein the battery cell clamp is arranged on a sliding rail of a stacking table and comprises: the mounting seat, the supporting claw assembly and the centering assembly are suitable for being in sliding connection with the sliding rail on the stacking table, and the mounting seat can move along the first direction; the support claw assembly is arranged on the mounting seat, and a battery core storage space is formed on the support claw assembly and is used for supporting a battery core; the centering component is arranged on the mounting seat, the centering component can be close to or far away from the supporting claw component, a battery core clamping space is formed on the centering component, and the battery core clamping space is used for clamping the side wall of the battery core; the first direction is the extending direction of the sliding rail. According to the utility model, the feeding efficiency of the battery cells is improved, the stacking efficiency of the battery cells is further improved, and meanwhile, the battery cells are prevented from being skewed in the stacking process.

Description

Cell clamp and cell module stacking device

Technical Field

The utility model relates to the technical field of battery cell production, in particular to a battery cell clamp and a battery cell module stacking device.

Background

The minimum unit of the battery cell package is a battery cell, and the battery cell is an electric energy storage unit; multiple cells are stacked together to form a module, and the stacking process needs to ensure that the poles of different cells are in a straight line. In the power lithium battery cell industry, in module PACK assembly production line field, to automatic module stack group station, most battery cell stack and module snatch the action and all be accomplished by two robots, one robot clamping jaw snatch the battery cell and constantly pile up to the stack structure, and another robot tongs snatch the stack directly and press from both sides tightly to place next station of module plastic.

However, the existing cell clamp in the cell module stacking device has low stacking efficiency, and the cell skew risk exists in the stacking process, so that improvement is needed.

Disclosure of Invention

The utility model provides a battery core clamp and a battery core module stacking device, which are used for solving the defects that the battery core clamp in the existing battery core module stacking device has low stacking efficiency and a battery core is inclined in the stacking process.

The utility model provides a battery core clamp, which is arranged on a sliding rail of a stacking table and comprises: the mounting seat is in sliding connection with the sliding rail on the stacking table and can move along the first direction; the support claw assembly is arranged on the mounting seat, and a battery core storage space is formed on the support claw assembly and is used for supporting a battery core; the centering component is arranged on the mounting seat, the centering component can be close to or far away from the supporting claw component, a battery core clamping space is formed on the centering component, and the battery core clamping space is used for clamping the side wall of the battery core; the first direction is the extending direction of the sliding rail.

According to the utility model, the cell clamp comprises: a pair of cell holding claws and a first driving member; the first driving piece is connected with the mounting seat; the first driving piece is used for driving the two electric core supporting claws to be close to or far away from each other so as to enable the distance between the two electric core supporting claws to be switched between being smaller than a first length and being larger than the first length; wherein, the first length is the length of the electric core.

According to the utility model, the battery cell supporting claw comprises: the battery cell comprises a first bearing part and a second bearing part, wherein the first bearing part is vertically connected with the second bearing part to form an L-shaped structure, and the bottom and the side wall of the battery cell are respectively contacted with the L-shaped structure.

According to the battery cell clamp provided by the utility model, the side wall of the battery cell supporting claw, which is in contact with the battery cell, is provided with the roller structure, and the rolling shaft of the roller is perpendicular to the moving direction of the battery cell supporting claw.

According to the utility model, the centering assembly comprises: the centering clamping jaw and the driving assembly are connected with the mounting seat; the centering clamping jaw comprises: a first pair of middle portions and a second pair of middle portions; the drive assembly includes: the first telescopic driving piece is connected with the first centering portion and the second centering portion, and is used for driving the first centering portion and the second centering portion to be close to or far away from each other, and the first centering portion and the second centering portion form the electric core clamping space therebetween.

According to the utility model, the driving assembly further comprises: the second telescopic driving piece is connected with the first telescopic driving piece and used for driving the first telescopic driving piece to move along the first direction so that the centering clamping jaw is close to or far away from the supporting jaw assembly.

According to the battery cell clamp provided by the utility model, the first pair of middle parts and the second pair of middle parts comprise the mounting part and the clamping part; the drive assembly includes a third telescoping drive; the mounting part is respectively connected with the first telescopic driving piece and the third telescopic driving piece; the third telescopic driving piece is connected with the clamping part, the third telescopic driving piece is used for driving the clamping part to move along the first direction, and the clamping part is used for being abutted to the side wall of the battery cell.

According to the utility model, the battery cell clamp further comprises: pressing down the assembly; the hold-down assembly includes: the extrusion piece and the second driving piece are installed on the installation seat, and the second driving piece is used for driving the extrusion piece to move along the first direction.

According to the battery cell clamp provided by the utility model, the extrusion piece comprises the connecting part, the elastic part and the extrusion part, and the second driving piece, the connecting part, the elastic part and the extrusion part are sequentially connected.

The utility model also provides a cell module stacking device, which comprises: comprises a stacking table, a sliding rail and any one of the battery core clamps; the sliding rail is arranged on the stacking table; the battery cell clamp is movably arranged on the sliding rail.

According to the battery cell clamp and the battery cell module stacking device, the battery cell storage space is arranged by arranging the support claw assembly, so that the charging device only needs to place the battery cell in the battery cell storage space, accurate alignment and placement are not needed, and the charging efficiency is improved; through setting up the centering subassembly, the centering subassembly is provided with electric core clamping space, and electric core clamping space can clamp electric core from electric core storage space and carry out centering removal to prevent that the electric core from appearing crooked in the stacking process; through setting up the mount pad, the mount pad can be followed the first direction and removed to drive electric core anchor clamps and remove to stacking position along the direction of movement of slide rail, centering subassembly is at stacking the plane release electric core, in order to stack electric core. Therefore, the utility model improves the feeding efficiency of the battery cells, further improves the stacking efficiency of the battery cells, and simultaneously avoids the battery cells from being skewed in the stacking process.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a cell module stacking device provided by the utility model;

fig. 2 is a schematic structural diagram of a cell fixture provided by the present utility model;

fig. 3 is a second schematic structural diagram of the battery core fixture provided by the present utility model.

Reference numerals:

1: a cell clamp;

11: a mounting base; 121: a cell supporting claw; 1211: a first support part; 1212: a second supporting part; 1213: a roller structure; 122: a first driving member; 123: a supporting claw mounting plate; 13: centering components; 131: centering the clamping jaw; 1311: a mounting part; 1312: a clamping part; 1321: a first telescopic driving member; 1322: a second telescopic driving member; 1323: a third telescopic driving member; 14: pressing down the assembly; 141: an extrusion; 1411: a connection part; 1412: an elastic part; 1413: an extrusion part; 142: a second driving member;

2: a stacking table; 21: a slide rail;

3: a battery cell; 4: a frame.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, 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 description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The cell holder 1 and the cell module stacking apparatus of the present utility model are described below with reference to fig. 1 to 3.

As shown in fig. 1, the stacking device of the battery cell module is provided with a stacking table 2, a sliding rail 21 is arranged on the stacking table 2, and the battery cell clamp 1 is slidably arranged on the sliding rail 21, and the battery cell clamp 1 can reciprocate along the extending direction of the sliding rail 21 so as to stack the battery cells 3 fed by the feeding device to a stacking position.

The top end or the position close to the top end of the sliding rail 21 is the original position of the battery cell clamp 1, the bottom end of the sliding rail 21 is the stacking position, and the stacking position rises along with the attention of the battery cells 3.

As shown in fig. 2 and 3, the battery cell fixture 1 provided by the present utility model is mounted on a slide rail 21 of a stacking table 2, and includes: the device comprises a mounting seat 11, a supporting claw assembly and a centering assembly 13, wherein the mounting seat 11 is in sliding connection with a sliding rail 21 on the stacking table 2, and the mounting seat 11 can move along a first direction; the supporting claw component is arranged on the mounting seat 11, and a battery core storage space is formed on the supporting claw component and is used for supporting the battery core 3; the centering component 13 is arranged on the mounting seat 11, the centering component 13 can be close to or far away from the supporting claw component, a battery core clamping space is formed on the centering component 13, and the battery core clamping space is used for clamping the side wall of the battery core 3; the first direction is the extending direction of the sliding rail 21.

The mounting seat 11 is slidably connected with the sliding rail 21, and the mounting seat 11 can reciprocate on the sliding rail 21 along a first direction under the driving of the driving device so as to drive the battery cell clamp 1 to move along the first direction, so that the battery cells 3 are stacked in sequence, and the first direction is the extending direction of the sliding rail 21.

According to the battery cell clamp 1, the battery cell storage space is arranged by the support claw assembly, and the charging device only needs to place the battery cell 3 in the battery cell storage space, so that accurate alignment and placement are not needed, and the charging efficiency is improved; through arranging the centering component 13, the centering component 13 is provided with a battery core clamping space, and the battery core clamping space can clamp the battery core 3 from the battery core storage space and perform centering movement so as to prevent the battery core 3 from being skewed in the stacking process; through setting up mount pad 11, mount pad 11 can follow the first direction and remove to drive electric core anchor clamps 1 along the direction of movement of slide rail 21 and remove to the position of stacking, centering assembly 13 release electric core 3 in the plane of stacking, in order to pile up electric core 3. Therefore, the utility model improves the feeding efficiency of the battery cells, further improves the stacking efficiency of the battery cells, and simultaneously avoids the deflection of the battery cells in the stacking process.

Wherein, one side of the mounting seat 11 is provided with a connecting structure matched with the sliding rail 21.

For example, the slide rail 21 is provided with a slider, and one side of the mount 11 is fixedly connected with the slider.

In some embodiments, a driving device is disposed on one side of the sliding rail 21, and an output end of the driving device is connected to the sliding block, and the driving device can drive the sliding block to move along the extending direction of the sliding rail 21, so that the sliding block drives the mounting seat 11 to move along the extending direction of the sliding rail 21.

Further, the claw assembly includes: a pair of cell holding claws 121 and a first driving member 122; the first driving piece 122 is connected with the mounting seat 11; the first driving piece 122 is used for driving the two battery cell supporting claws 121 to be close to or far away from each other so as to switch the distance between the two battery cell supporting claws 121 between being smaller than the first length and being larger than the first length; wherein the first length is the length of the battery cell 3.

In case that the distance between the two cell holding claws 121 is smaller than the first length, the cell 3 may be placed on the two cell holding claws 121; in case the distance between the two cell holding claws 121 is larger than the first length, the two cell holding claws 121 can avoid the stacked cell modules to facilitate centering and placement of the centering assembly 13.

The first driving member 122 may be a driving device such as a cylinder, which is well known in the art.

In some embodiments, the supporting claw assembly further includes a guide rail and a pair of sliders, the guide rail is fixedly connected with the mounting seat 11, the output end of the first driving member 122 is respectively connected with the pair of sliders, the pair of sliders can approach or separate from each other under the driving of the first driving member 122, and the pair of battery core supporting claws 121 are fixedly connected with the pair of sliders in a one-to-one correspondence.

In some embodiments, the holding claw assembly further includes a holding claw mounting plate 123, one end of the holding claw mounting plate 123 is fixedly connected with the slider, and the other end of the holding claw mounting plate 123 is connected with the battery cell holding claw 121, so as to increase the connection stability of the battery cell holding claw 121.

Further, the cell holding claw 121 includes: the first support portion 1211 and the second support portion 1212, the first support portion 1211 and the second support portion 1212 are vertically connected to form an L-shaped structure, and the bottom and the side wall of the battery cell 3 are respectively contacted with the L-shaped structure.

The first support portion 1211 and the second support portion 1212 together define a battery cell storage space.

As shown in fig. 1, the stacking surface of the stacking table 2 forms an included angle with the surface of the frame 4, and the cell holding claw 121 is also inclined with respect to the surface of the frame 4.

Specifically, the first supporting portion 1211 is parallel to the stacking surface of the stacking table 2, the second supporting portion 1212 is perpendicular to the stacking surface of the stacking table 2, and when the feeding device places the battery cell 3 on the second supporting portion 1212, the battery cell 3 can automatically slide to a position where the sidewall of the battery cell 3 contacts the first supporting portion 1211.

In this embodiment, through setting up L type structure, reduce the precision of feed arrangement's blowing, improve the speed of blowing, carry out the bearing from two face electric core 3 simultaneously, improve stability.

The first support portion 1211 and the second support portion 1212 may be fixedly connected by integral molding, welding, or the like.

Further, the side wall of the cell supporting claw 121, which is in contact with the cell 3, is provided with a roller structure 1213, and the rolling axis of the roller is perpendicular to the moving direction of the cell supporting claw 121, so that when the cell 3 is stacked, the two cell supporting claws 121 are far away from each other and open, the friction force between the cell supporting claw 121 and the bottom of the cell 3 is reduced, and the shell of the cell 3 is prevented from being scratched.

The roller structures 1213 may be disposed in multiple groups, and the multiple groups of roller structures 1213 are arranged along the extending direction of the second supporting portion 1212.

Further, the centering assembly 13 includes: the centering clamping jaw 131 and the driving assembly are connected with the mounting seat 11; the centering jaw 131 includes: a first pair of middle portions and a second pair of middle portions; the drive assembly includes: the first telescopic driving piece 1321, the first telescopic driving piece 1321 is connected with the first pair of middle parts and the second pair of middle parts, the first telescopic driving piece 1321 is used for driving the first pair of middle parts and the second pair of middle parts to be close to or far away from each other, and a battery cell clamping space is formed between the first pair of middle parts and the second pair of middle parts.

The driving assembly may include a plurality of driving devices, where the plurality of driving devices respectively drive the centering jaws 131 to perform different actions, such as opening and closing the centering jaws 131, moving the centering jaws 131 integrally, and so on.

The first telescopic driving member 1321 may be a cylinder, an electric telescopic rod, or the like, which are known in the art.

Wherein the centering clamping jaw 131 is used for clamping the battery cell 3.

Specifically, the first middle part and the second middle part are oppositely arranged to form a clamping structure, the first telescopic driving piece 1321 is connected with the first middle part and the second middle part respectively to drive the first middle part and the second middle part to be close to or far away from each other, the side wall of the battery cell 3 is clamped under the condition that the first middle part and the second middle part are close to each other, and the side wall of the battery cell 3 is loosened under the condition that the first middle part and the second middle part are far away from each other.

The first telescopic driving piece 1321 can perform centering adjustment in the process of approaching the first pair of middle parts and the second pair of middle parts according to a set program, so that the clamped battery cell 3 and the stacked battery cell 3 pole are in a straight line.

Further, the drive assembly further comprises: the second telescopic driving piece 1322, the second telescopic driving piece 1322 is connected with the first telescopic driving piece 1321, and the second telescopic driving piece 1322 is used for driving the first telescopic driving piece 1321 to move along the first direction so as to enable the centering clamping jaw 131 to be close to or far away from the supporting jaw assembly.

The second telescopic driving member 1322 may be a cylinder, an electric telescopic rod, or the like, which are known in the art.

The fixing portion of the second telescopic driving piece 1322 is connected with the mounting seat 11, and the output end of the second telescopic driving piece 1322 is connected with the fixing portion of the first telescopic driving piece 1321, and the second telescopic driving piece 1322 can drive the first telescopic driving piece 1321 to integrally move, so as to indirectly drive the centering clamping jaw 131 to move.

The battery cell clamp 1 is located in an original position, the centering clamping jaw 131 is in a contracted state in the material placing process of the material feeding device, and is located away from the avoidance position of the second bearing portion 1212 of the supporting jaw assembly so as to avoid the battery cell storage space, so that the actions of the material feeding battery cell 3 and the placement of the battery cell 3 are smoothly carried out.

After the battery cell 3 is placed in the battery cell storage space, the second telescopic driving piece 1322 drives the first telescopic driving piece 1321 to move downwards, and then drives the centering clamping jaw 131 to move downwards, when the centering clamping jaw 131 moves downwards to the battery cell storage space, the first telescopic driving piece 1321 drives the centering clamping jaw 131 to be folded, the first middle part and the second middle part are close to each other, and in the process of clamping the battery cell 3, the first telescopic driving piece 1321 completes centering of the battery cell 3 and the stacking position according to a set program.

In this process, the first driving member 122 drives the pair of cell holding claws 121 away from each other, and the distance between the two cell holding claws 121 is larger than the length of the cells 3 to avoid the stacked cells 3 when the cell fixture 1 is moved to the stacking position.

Further, the first and second pairs of middle portions each include a mounting portion 1311 and a clamping portion 1312; the drive assembly includes a third telescoping drive 1323; the mounting portion 1311 is connected to the first telescopic driving tool 1321 and the third telescopic driving tool 1323, respectively; the third telescopic driving piece 1323 is connected to the clamping portion 1312, the third telescopic driving piece 1323 is used for driving the clamping portion 1312 to move along the first direction, and the clamping portion 1312 is used for abutting against the side wall of the battery cell 3.

The third telescopic driving element 1323 may be a cylinder, an electric telescopic rod, or the like, which are known in the art.

Wherein, the mounting portion 1311 and the clamping portion 1312 are separated, the mounting portion 1311 and the clamping portion 1312 are connected by a third telescopic driving member 1323, and the third telescopic driving member 1323 can drive the clamping portion 1312 and the mounting portion 1311 to approach or separate from each other.

After the cell fixture 1 moves down to the stacking position along the slide rail 21, the third telescopic driving piece 1323 drives the clamping portion 1312 and the cell 3 to move down to the stacking plane, the centering clamping jaw 131 is opened, and the cell 3 is stacked.

Wherein, with the attention of stacking the cells 3, the stacking plane will rise, and the stacking plane is located above the stacked uppermost cell 3.

Further, the cell fixture 1 further includes: a hold down assembly 14; the hold-down assembly 14 includes: the pressing member 141 and the second driving member 142, the second driving member 142 is mounted on the mounting seat 11, and the second driving member 142 is used for driving the pressing member 141 to move along the first direction.

Wherein, after the centering jaws 131 are opened to place the cells 3 in the stacking position, the second driving member 142 drives the pressing member 141 to move down, and the pressing member 141 presses the cells 3 to reduce the distance between the stacked cells 3, thereby completing the stacking of one cell 3.

The second driving member 142 may be a driving device such as a cylinder, which is well known in the art.

Further, the pressing member 141 includes a connecting portion 1411, an elastic portion 1412, and a pressing portion 1413, and the second driving member 142, the connecting portion 1411, the elastic portion 1412, and the pressing portion 1413 are sequentially connected.

The elastic portion 1412 may be an elastic structure such as a spring, an elastic material, or the like.

In the present embodiment, the elastic portion 1412 is provided to provide a buffer effect when the pressing portion 1413 abuts against the top surface of the battery cell 3, so as to protect the battery cell 3.

The specific working process of the cell clamp 1 comprises the following steps:

the cell clamp 1 is in the original position, and the feeding device places the cell 3 on the cell supporting claw 121 of the supporting claw assembly.

The second telescopic driving piece 1322 drives the centering clamping jaw 131 to move downwards, the first telescopic driving piece 1321 drives the centering clamping jaw 131 to retract, centering is completed, the battery cell 3 is clamped, and the first driving piece 122 drives the battery cell supporting jaw 121 to open.

The cell fixture 1 is moved down along the slide rail 21 to the stacking position.

The third telescopic driving member 1323 drives the centering jaw 131 and the battery cell 3 to move down to the stacking plane, the centering jaw 131 is opened, and the battery cell 3 is placed on the stacking plane.

The second driving member 142 drives the pressing member 141 to press the battery cells 3, completing the stacking of one battery cell 3.

The cell clamp 1 moves back to the feeding level to perform the next group of feeding.

According to the battery cell clamp 1, the battery cell storage space is arranged by the support claw assembly, and the charging device only needs to place the battery cell 3 in the battery cell storage space, so that accurate alignment and placement are not needed, and the charging efficiency is improved; through arranging the centering component 13, the centering component 13 is provided with a battery core clamping space, and the battery core clamping space can clamp the battery core 3 from the battery core storage space and perform centering movement so as to prevent the battery core 3 from being skewed in the stacking process; through setting up mount pad 11, mount pad 11 can follow the first direction and remove to drive electric core anchor clamps 1 along the direction of movement of slide rail 21 and remove to the position of stacking, centering assembly 13 release electric core 3 in the plane of stacking, in order to pile up electric core 3. Therefore, the utility model improves the feeding efficiency of the battery cells 3, further improves the stacking efficiency of the battery cells 3, and simultaneously avoids the deflection of the battery cells 3 in the stacking process.

The utility model also provides a cell module stacking device which comprises a stacking table 2, a sliding rail 21 and the cell clamp 1; the slide rail 21 is arranged on the stacking table 2; the battery cell holder is movably arranged on the slide rail 21.

According to the cell module stacking device, the cell storage space is arranged on the support claw assembly, and the feeding device only needs to place the cell 3 in the cell storage space, so that accurate alignment and placement are not needed, and the feeding efficiency is improved; through arranging the centering component 13, the centering component 13 is provided with a battery core clamping space, and the battery core clamping space can clamp the battery core 3 from the battery core storage space and perform centering movement so as to prevent the battery core 3 from being skewed in the stacking process; through setting up mount pad 11, mount pad 11 can follow the first direction and remove to drive electric core anchor clamps 1 along the direction of movement of slide rail 21 and remove to the position of stacking, centering assembly 13 release electric core 3 in the plane of stacking, in order to pile up electric core 3. Therefore, the utility model improves the feeding efficiency of the battery cells 3, further improves the stacking efficiency of the battery cells 3, and simultaneously avoids the deflection of the battery cells 3 in the stacking process.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; 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 technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a battery core anchor clamps installs on the slide rail of stacking table, its characterized in that includes:

the mounting seat is in sliding connection with the sliding rail on the stacking table and can move along a first direction;

the support claw assembly is arranged on the mounting seat, and a battery core storage space is formed on the support claw assembly and is used for supporting a battery core;

the centering component is arranged on the mounting seat, the centering component can be close to or far away from the supporting claw component, a battery core clamping space is formed on the centering component, and the battery core clamping space is used for clamping the side wall of the battery core;

the first direction is the extending direction of the sliding rail;

the pawl assembly includes: a pair of cell holding claws and a first driving member; the first driving piece is connected with the mounting seat; the first driving piece is used for driving the two electric core supporting claws to be close to or far away from each other so as to enable the distance between the two electric core supporting claws to be switched between being smaller than a first length and being larger than the first length; wherein the first length is the length of the battery cell;

the battery cell holding claw comprises: the battery cell comprises a first bearing part and a second bearing part, wherein the first bearing part is vertically connected with the second bearing part to form an L-shaped structure, and the bottom and the side wall of the battery cell are respectively contacted with the L-shaped structure.

2. The cell fixture according to claim 1, wherein,

the side wall of the battery cell supporting claw, which is in contact with the battery cell, is provided with a roller structure, and the rolling shaft of the roller is perpendicular to the moving direction of the battery cell supporting claw.

3. The cell fixture according to claim 1, wherein,

the centering assembly includes: the centering clamping jaw and the driving assembly are connected with the mounting seat;

the centering clamping jaw comprises: a first pair of middle portions and a second pair of middle portions;

the drive assembly includes: the first telescopic driving piece is connected with the first centering portion and the second centering portion, and is used for driving the first centering portion and the second centering portion to be close to or far away from each other, and the first centering portion and the second centering portion form the electric core clamping space therebetween.

4. The cell fixture according to claim 3, wherein,

the drive assembly further includes: the second telescopic driving piece is connected with the first telescopic driving piece and used for driving the first telescopic driving piece to move along the first direction so that the centering clamping jaw is close to or far away from the supporting jaw assembly.

5. The cell fixture according to claim 3, wherein,

the first pair of middle parts and the second pair of middle parts comprise a mounting part and a clamping part;

the drive assembly includes a third telescoping drive;

the mounting part is respectively connected with the first telescopic driving piece and the third telescopic driving piece;

the third telescopic driving piece is connected with the clamping part, the third telescopic driving piece is used for driving the clamping part to move along the first direction, and the clamping part is used for being abutted to the side wall of the battery cell.

6. The cell fixture according to any one of claims 1 to 5, wherein,

the cell fixture further comprises: pressing down the assembly;

the hold-down assembly includes: the extrusion piece and the second driving piece are installed on the installation seat, and the second driving piece is used for driving the extrusion piece to move along the first direction.

7. The cell fixture according to claim 6, wherein,

the extrusion piece comprises a connecting part, an elastic part and an extrusion part, wherein the second driving piece, the connecting part, the elastic part and the extrusion part are sequentially connected.

8. A cell module stacking device comprising a stacking table, a slide rail, and the cell clamp of any one of claims 1 to 7;

the sliding rail is arranged on the stacking table;

the battery cell clamp is movably arranged on the sliding rail.