Sponge vacuum chuck, battery cell group clamping device and battery cell group clamping method

Abstract

The invention relates to a sponge vacuum chuck, a battery cell group clamping device and a battery cell group clamping method. A plurality of accommodating holes are formed in a chuck mounting frame; the vacuum chuck body is mounted in the corresponding accommodating hole through a locking piece; the top of the vacuum chuck body is provided with an atmosphere communicating electronic valve and a vacuum connecting pipe which are communicated with a cavity in the vacuum chuck body, and the bottom is provided with a hole channel communicated with the cavity; the plurality of sponge blocks are in one-to-one correspondence with the vacuum chuck bodies and are connected to the bottoms of the vacuum chuck bodies; according to the arrangement, each vacuum chuck body and the corresponding sponge block can be connected into the corresponding accommodating hole through the locking piece according to needs, so that when the length and the width of a to-be-clamped battery cell group are changed, the vacuum chuck bodies can be correspondingly increased or decreased, and the vacuum chuck bodies do not need to be completely replaced; a sponge vacuum chuck with a new specification is quickly formed; and in addition, only the vacuum chuck body needs to be replaced, so that one chuck mounting rack can be compatible with multiple types of to-be-clamped battery cell groups.

Description

Technical Field

[0001] The present application relates to the field of vacuum adsorption technology, and in particular to a sponge vacuum suction cup, a battery cell group clamping device, and a battery cell group clamping method. Background Art

[0002] At present, when producing CTP batteries for new energy vehicles, the battery cells need to be grouped into blocks. Generally, suction cups are used to absorb and lift the battery cells of the blocks, so that the blocks can be put into boxes.

[0003] In the related art, during the CTP battery production process, when the length and width of the Block change, the Block sponge suction cup needs to be replaced as a whole. One Block requires one Block sponge suction cup, which is not compatible with multiple types of Blocks and is difficult to change, affecting production efficiency. Summary of the invention

[0004] The embodiments of the present application provide a sponge vacuum suction cup, a battery cell group clamping device, and a battery cell group clamping method to solve the problem in the related art that in the CTP battery production process, one Block sponge suction cup corresponds to one Block block, is not compatible with multiple varieties of Block blocks, and is difficult to change, affecting production efficiency.

[0005] In a first aspect, a sponge vacuum suction cup is provided, comprising:

[0006] A suction cup mounting frame, on which a plurality of receiving holes are provided;

[0007] A plurality of vacuum suction cup bodies, each of which is installed in a corresponding accommodation hole through a locking member; the top of the vacuum suction cup body is provided with an atmosphere communication electronic valve and a vacuum connection pipe communicating with the chamber inside the vacuum suction cup body, and the bottom is provided with a channel communicating with the chamber;

[0008] A plurality of sponge blocks correspond to the vacuum suction cup body one by one and are connected to the bottom of the vacuum suction cup body.

[0009] Through the above arrangement, each vacuum suction cup body and the corresponding sponge block can be connected in the corresponding accommodating hole through the locking piece as needed, so that when the length and width of the battery cell group to be clamped change, the vacuum suction cup body can be increased or decreased accordingly, and there is no need to replace all of them, so that a new specification of sponge vacuum suction cup can be quickly formed; in addition, since only the vacuum suction cup body needs to be replaced, one suction cup mounting frame can be compatible with multiple varieties of battery cell groups to be clamped.

[0010] In some embodiments, a positioning slot is provided on the side wall of the receiving hole;

[0011] The locking member includes a mounting tube and a sliding rod, wherein an elastic member is arranged in the mounting tube, and the mounting tube is fixedly connected to the vacuum suction cup body; one end of the sliding rod extends into the mounting tube and abuts against the elastic member, and the other end of the sliding rod is provided with a positioning block plugged into the positioning slot;

[0012] The sliding rod is located in the installation tube and is provided with a retaining ring on the outside of the body; an airbag pusher is provided at one end of the installation tube away from the elastic member, and the airbag pusher is used to resist the retaining ring during inflation, drive the sliding rod to compress the elastic member, and pull the positioning block out of the positioning slot.

[0013] In some embodiments, one end of the installation tube is closed, and the other end is provided with a through hole for the sliding rod to pass through; the elastic member is connected to the closed end of the installation tube;

[0014] The airbag pushing member includes an annular airbag and a connecting air nozzle; the annular airbag is sleeved on the sliding rod, and its outer diameter is larger than the diameter of the through hole; the outer diameter of the retaining ring is equal to the outer diameter of the annular airbag; one end of the connecting air nozzle is connected to the annular airbag, and the other end is passed through the outside of the mounting tube.

[0015] In some embodiments, the receiving hole is rectangular;

[0016] The positioning slot is horizontally arranged and located on the long side wall of the receiving hole; the extending length of the positioning slot is equal to the length of the long side of the receiving hole;

[0017] The short side wall of the accommodating hole is in contact with the side wall of the vacuum suction cup body.

[0018] In some embodiments, the bottom of the vacuum suction cup body is provided with two T-shaped slide grooves arranged at intervals;

[0019] The sponge block is provided with a pole avoidance groove, and the top of the sponge block is provided with T-shaped mounting strips located on both sides of the pole avoidance groove, and the T-shaped mounting strips are installed in the T-shaped slide groove.

[0020] In some embodiments, the vacuum suction cup body is made of steel;

[0021] The sponge block is provided with a pole avoidance groove, and the top of the sponge block is bonded with a magnetic absorption layer.

[0022] In a second aspect, a battery cell group clamping device is provided, comprising:

[0023] Sponge vacuum cup;

[0024] A connecting bracket, on which a vacuum generator is provided; the vacuum generator is connected to the vacuum connecting pipes of the plurality of vacuum suction cup bodies through a connecting pipe;

[0025] A control module is mounted on the connection bracket and connected to the vacuum generator and the atmosphere communication electronic valve to control the operation of the vacuum generator and the atmosphere communication electronic valve.

[0026] Through the above settings, when clamping is required, the control module controls the atmosphere-connected electronic valve to be closed, and the vacuum generator works to generate a vacuum in the internal chamber of the vacuum suction cup body to provide adsorption force; when clamping is not required, the control module controls the atmosphere-connected electronic valve to be opened, and the vacuum generator does not work to deflate and cancel the adsorption force.

[0027] In some embodiments, the battery cell group clamping device further includes an air pump mounted on the connecting bracket, and the air pump is connected to the airbag pushing member of the locking member;

[0028] The control module is connected to the air pump and is used to inflate the airbag pusher when the vacuum suction cup body is disassembled to resist the retaining ring, and at the same time drive the sliding rod to compress the elastic member to pull the positioning block out of the positioning slot.

[0029] In some embodiments, the air pump is connected to a plug connector mounted on a suction cup mounting frame via an air pipe, and the plug connector is plugged into a connecting air nozzle of the airbag pusher.

[0030] In a third aspect, a method for clamping a battery cell group is provided, which comprises the following steps:

[0031] Provide a battery cell group clamping device;

[0032] Obtain the length and width of the battery cell group to be clamped, and then determine the number and distribution position of the vacuum suction cup bodies according to the length and width;

[0033] According to the quantity and distribution position, corresponding vacuum suction cup bodies and sponge blocks are installed on the suction cup mounting frame to form a sponge vacuum suction cup corresponding to the current battery cell group to be clamped;

[0034] When the length and width of the battery group to be clamped changes next time, the corresponding vacuum suction cup body is increased or decreased according to the change of length and width to form a new sponge vacuum suction cup. The design is based on the top structure of the battery cell, and the corresponding sponge block is matched with the top structure of the battery cell to achieve the adsorption of the battery cell. The top structure of the battery cell includes the position of the pole, length and width dimensions; then the single vacuum suction cup body is randomly combined for quick plugging and unplugging; it is suitable for CTP battery production with varying block length and width, with stronger compatibility and higher conversion efficiency.

[0035] The beneficial effects of the technical solution provided by this application include:

[0036] The embodiments of the present application provide a sponge vacuum suction cup, a battery cell group clamping device, and a battery cell group clamping method. Since a plurality of accommodating holes are provided on the suction cup mounting frame; the vacuum suction cup body is installed in the corresponding accommodating hole through a locking piece; the top of the vacuum suction cup body is provided with an atmospheric communication electronic valve and a vacuum connection pipe which are connected to the chamber inside the vacuum suction cup body, and the bottom is provided with a channel which is connected to the chamber; a plurality of sponge blocks correspond to the vacuum suction cup body one by one and are connected to the bottom of the vacuum suction cup body; through the above arrangement, each vacuum suction cup body and the corresponding sponge block can be connected to the corresponding accommodating hole through the locking piece as needed, so that when the length and width of the battery cell group to be clamped change, the vacuum suction cup body can be correspondingly increased or decreased, and there is no need to replace all of them, so that a sponge vacuum suction cup of new specifications can be quickly formed; in addition, since only the vacuum suction cup body needs to be replaced, one suction cup mounting frame can be compatible with multiple varieties of battery cell groups to be clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 A schematic diagram of the three-dimensional structure of a battery cell group clamping device provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of the three-dimensional structure of the bottom of the sponge vacuum suction cup provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of the three-dimensional structure of the top of the sponge vacuum suction cup provided in an embodiment of the present application;

[0041] Figure 4 Provided for the embodiments of this application Figure 3 The enlarged schematic diagram at A in the middle;

[0042] Figure 5 A schematic diagram of the structure of the connection between the sponge block and the vacuum suction cup body provided in the embodiment of the present application;

[0043] Figure 6 A schematic diagram of a structure in which a sponge block provided in an embodiment of the present application is connected to a vacuum suction cup body via a T-shaped slide groove;

[0044] Figure 7 A schematic diagram of the structure of a sponge block provided in an embodiment of the present application;

[0045] Figure 8 A schematic diagram of the three-dimensional structure of a locking member provided in an embodiment of the present application;

[0046] Fig. 9 Provided for the embodiments of this application Figure 8 A top view of the

[0047] Fig.10 Provided for the embodiments of this application Figure 8 Schematic diagram of the cross section at BB in the middle.

[0048] In the figure: 1. Suction cup mounting frame; 2. Connecting bracket; 3. Vacuum suction cup body; 300. T-shaped slide groove; 4. Locking piece; 400. Mounting tube; 401. Sliding rod; 402. Elastic piece; 403. Positioning block; 404. Air bag pusher; 40401. Annular air bag; 40402. Connecting air nozzle; 405. Retaining ring; 5. Sponge block; 500. T-shaped mounting strip; 6. Atmosphere connecting electronic valve; 7. Vacuum connecting pipe; 8. Positioning slot. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0050] The embodiments of the present application provide a sponge vacuum suction cup, a cell group clamping device, and a cell group clamping method to solve the problem in the related art that in the CTP battery production process, one block sponge suction cup corresponds to one block, is not compatible with multiple types of block blocks (cell groups to be clamped), and is difficult to change, which affects production efficiency. The following is an explanation from three aspects: a sponge vacuum suction cup, a cell group clamping device, and a cell group clamping method.

[0051] First, see Figure 1-Figure 4 , a sponge vacuum suction cup, comprising:

[0052] A suction cup mounting frame 1, which is provided with a plurality of receiving holes;

[0053] A plurality of vacuum suction cup bodies 3, each of which is installed in a corresponding accommodation hole through a locking member 4; the top of the vacuum suction cup body 3 is provided with an atmosphere communication electronic valve 6 and a vacuum connection pipe 7 communicating with the chamber inside the vacuum suction cup body 3, and the bottom is provided with a channel communicating with the chamber; the bottom of the vacuum suction cup body 3 is provided with a sponge fitting surface, and the sponge fitting surface is provided with a channel communicating with the chamber;

[0054] A plurality of sponge blocks 5 correspond to the vacuum suction cup body 3 one by one and are connected to the bottom of the vacuum suction cup body 3 .

[0055] Through the above arrangement, each vacuum suction cup body 3 and the corresponding sponge block 5 can be connected in the corresponding accommodating hole through the locking piece 4 as needed, so that when the length and width of the battery cell group to be clamped change, the corresponding vacuum suction cup body 3 can be increased or decreased accordingly, and there is no need to replace all of them, so a new specification of sponge vacuum suction cup can be quickly formed; in addition, since only the vacuum suction cup body 3 needs to be replaced, one suction cup mounting frame 1 can be compatible with multiple varieties of battery cell groups to be clamped, thereby improving production efficiency.

[0056] In some preferred embodiments, a positioning slot 8 is provided on the side wall of the receiving hole;

[0057] The locking member 4 includes a mounting tube 400 and a sliding rod 401. An elastic member 402 is provided in the mounting tube 400. The mounting tube 400 is fixedly connected to the vacuum suction cup body 3. One end of the sliding rod 401 extends into the mounting tube 400 and abuts against the elastic member 402. The other end of the sliding rod 401 is provided with a positioning block 403 plugged into the positioning slot 8.

[0058] A retaining ring 405 is provided on the outer side of the sliding rod 401 located in the installation tube 400; an airbag pushing member 404 is provided at one end of the installation tube 400 away from the elastic member 402. The airbag pushing member 404 is used to resist the retaining ring 405 during inflation, driving the sliding rod 401 to compress the elastic member 402 so as to pull the positioning block 403 out of the positioning slot 8.

[0059] Through the above arrangement, when installing the vacuum suction cup body 3, since the elastic member 402 makes the sliding rod 401 at the longest telescopic length under normal conditions, when the vacuum suction cup body 3 enters the elastic member 402 of the accommodating hole, the positioning block 403 is squeezed by the side wall of the accommodating hole, the elastic member 402 is squeezed, and the sliding rod 401 contracts, so that it can enter at the bottom of the accommodating hole; when the positioning block 403 is connected to the positioning slot 8, it is not squeezed, and the positioning block 403 is inserted into the positioning slot 8 under the action of the elastic member 402 to complete the locking; when disassembly is required, the airbag pusher 404 pushes the sliding rod 401 in the opposite direction to achieve unlocking.

[0060] Of course, in order to reduce the friction of the positioning block 403 , a smooth transition surface can be provided on the positioning block 403 .

[0061] Furthermore, in order to facilitate the vacuum suction cup body 3 to enter from the bottom of the receiving hole and realize positioning, it is not necessary to determine whether the positioning block 403 and the positioning card slot 8 are located on the same vertical axis to ensure accurate insertion. The following settings are provided:

[0062] The receiving hole is rectangular;

[0063] The positioning slot 8 is horizontally arranged and located on the long side wall of the receiving hole; the extending length of the positioning slot 8 is equal to the length of the long side of the receiving hole;

[0064] The short side wall of the accommodating hole is in contact with the side wall of the vacuum suction cup body 3 .

[0065] Since the length of the positioning block 403 is smaller than the length of the positioning slot 8, insertion can be achieved as long as it is moved upward to a certain position, and there is no need to ensure that the positioning block 403 is located directly below the positioning slot 8 during the entry of the vacuum suction cup body 3.

[0066] In some preferred embodiments, reference Figure 9-10 ,as well as Figure 3 and Figure 4 The specific structure of the airbag pusher 404 is as follows:

[0067] One end of the installation tube 400 is closed, and the other end is provided with a through hole for the sliding rod 401 to pass through; the elastic member 402 is connected to the closed end of the installation tube 400;

[0068] The airbag pusher 404 includes an annular airbag 40401 and a connecting air nozzle 40402; the annular airbag 40401 is sleeved on the sliding rod 401, and its outer diameter is larger than the diameter of the through hole; the outer diameter of the retaining ring 405 is equal to the outer diameter of the annular airbag 40401; one end of the connecting air nozzle 40402 is connected to the annular airbag 40401, and the other end is passed through to the outside of the mounting tube 400.

[0069] In some preferred embodiments, the sponge block 5 is connected in the following two ways:

[0070] In the first type, two T-shaped slide grooves 300 are provided at intervals at the bottom of the vacuum suction cup body 3;

[0071] The sponge block 5 is provided with a pole avoidance groove, and the top of the sponge block 5 is provided with a T-shaped mounting strip 500 located at both sides of the pole avoidance groove, and the T-shaped mounting strip 500 is installed in the T-shaped slide groove 300 .

[0072] In the second type, the vacuum cup body 3 is made of steel;

[0073] The sponge block 5 is provided with a pole avoidance groove, and a magnetic attraction layer is bonded to the top of the sponge block 5 .

[0074] The above two methods can ensure the convenience of connecting the sponge block 5 and facilitate the connection with the vacuum suction cup body 3.

[0075] In a second aspect, a battery cell group clamping device is provided, comprising:

[0076] Sponge vacuum cup;

[0077] A connecting bracket 2 is provided with a vacuum generator; the vacuum generator is connected to the vacuum connecting pipes 7 of the plurality of vacuum suction cup bodies 3 through connecting pipes;

[0078] The control module is mounted on the connection bracket 2 and connected to the vacuum generator and the atmosphere communication electronic valve 6 to control the operation of the vacuum generator and the atmosphere communication electronic valve 6 .

[0079] Through the above settings, when clamping is required, the control module controls the atmosphere-connected electronic valve 6 to be closed, and the vacuum generator works to generate a vacuum in the chamber inside the vacuum suction cup body 3 to provide adsorption force; when clamping is not required, the control module controls the atmosphere-connected electronic valve 6 to be opened, and the vacuum generator does not work to deflate and cancel the adsorption force.

[0080] Thus, clamping and placing can be achieved. In addition, the moving device of the mobile battery cell group clamping device is not explained in detail here.

[0081] In some preferred embodiments, since the locking member 4 needs to be unlocked by the capsule pusher, the following settings are provided for easy control:

[0082] The battery cell group clamping device also includes an air pump installed on the connecting bracket 2, and the air pump is connected to the airbag pushing member 404 of the locking member 4;

[0083] The control module is connected to the air pump and is used to inflate the airbag pusher 404 to resist the retaining ring 405 when the vacuum suction cup body 3 is disassembled, and at the same time drive the sliding rod 401 to compress the elastic member 402 to pull the positioning block 403 out of the positioning slot 8.

[0084] One of the problems mentioned above is that after the vacuum suction cup body 3 is disassembled, the air pipe of the air pump will be pulled, so the following configuration is adopted: the air pump is connected to a plug connector installed on the suction cup mounting frame 1 through the air pipe, and the plug connector is plugged into the connecting air nozzle 40402 of the airbag pushing member 404.

[0085] Therefore, the above achieves the effect of centralized control through the control module, and does not affect the disassembly and installation of the vacuum suction cup body 3.

[0086] In a second aspect, a method for clamping a battery cell group is provided, which comprises the following steps:

[0087] Provide a battery cell group clamping device;

[0088] Obtain the length and width of the battery cell group to be clamped, and then determine the number and distribution position of the vacuum suction cup body 3 according to the length and width;

[0089] The corresponding vacuum suction cup bodies 3 and sponge blocks 5 are installed on the suction cup mounting frame 1 according to the quantity and distribution position to form a sponge vacuum suction cup corresponding to the current battery cell group to be clamped;

[0090] When the length and width of the battery cell group to be clamped next time change, the corresponding vacuum suction cup body 3 is increased or decreased according to the change of the length and width to form a new sponge vacuum suction cup.

[0091] Through the above settings, the design is carried out according to the top structure of the battery cell, and the corresponding sponge block 5 is matched with the top structure of the battery cell to achieve the adsorption of the battery cell. The top structure of the battery cell includes the position of the pole, the length dimension, and the width dimension; then the single vacuum suction cup body 3 is randomly combined for quick plugging and pulling; it is suitable for the production of CTP batteries with varying block lengths and widths, with stronger compatibility and higher conversion efficiency.

[0092] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0093] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0094] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A sponge vacuum suction cup, characterized in that: It includes: A suction cup mounting frame (1) having a plurality of receiving holes; A plurality of vacuum suction cup bodies (3), each vacuum suction cup body (3) being installed in a corresponding receiving hole via a locking member (4); the top of the vacuum suction cup body (3) is provided with an atmosphere communicating electronic valve (6) and a vacuum connecting pipe (7) communicating with a chamber inside the vacuum suction cup body, and the bottom is provided with a hole communicating with the chamber; A plurality of sponge blocks (5) correspond one to one with the vacuum suction cup body (3) and are connected to the bottom of the vacuum suction cup body (3).

2. The sponge vacuum suction cup according to claim 1, characterized in that: A positioning slot (8) is provided on the side wall of the accommodating hole; The locking member (4) comprises a mounting tube (400) and a sliding rod (401); an elastic member (402) is arranged in the mounting tube (400); the mounting tube (400) is fixedly connected to the vacuum suction cup body (3); one end of the sliding rod (401) extends into the mounting tube (400) and abuts against the elastic member (402); the other end of the sliding rod (401) is provided with a positioning block (403) plugged into the positioning slot (8); The sliding rod (401) is located in the installation tube (400) and is provided with a retaining ring (405) on its outer side. An airbag pushing member (404) is provided at one end of the installation tube (400) away from the elastic member (402). The airbag pushing member (404) is used to resist the retaining ring (405) when inflating, so as to drive the sliding rod (401) to compress the elastic member (402) so as to pull the positioning block (403) out of the positioning slot (8).

3. The sponge vacuum suction cup according to claim 2, characterized in that: One end of the installation tube (400) is closed, and the other end is provided with a through hole for the sliding rod (401) to pass through; the elastic member (402) is connected to the closed end of the installation tube (400); The airbag pusher (404) includes an annular airbag (40401) and a connecting air nozzle (40402); the annular airbag (40401) is sleeved on the sliding rod (401), and its outer diameter is greater than the diameter of the through hole; the outer diameter of the retaining ring (405) is equal to the outer diameter of the annular airbag (40401); one end of the connecting air nozzle (40402) is connected to the annular airbag (40401), and the other end is passed through the outside of the mounting tube (400).

4. The sponge vacuum suction cup according to claim 3, characterized in that: The receiving hole is rectangular; The positioning slot (8) is arranged horizontally and is located on the long side wall of the accommodating hole; the extending length of the positioning slot (8) is equal to the length of the long side of the accommodating hole; The short side wall of the accommodating hole is in contact with the side wall of the vacuum suction cup body (3).

5. The sponge vacuum suction cup according to claim 1, characterized in that: The bottom of the vacuum suction cup body (3) is provided with two T-shaped sliding grooves (300) arranged at intervals; The sponge block (5) is provided with a pole avoidance groove, and the top of the sponge block (5) is provided with a T-shaped mounting strip (500) located on both sides of the pole avoidance groove, and the T-shaped mounting strip (500) is installed in the T-shaped slide groove (300).

6. The sponge vacuum suction cup according to claim 1, characterized in that: The vacuum suction cup body (3) is made of steel; The sponge block (5) is provided with a pole avoidance groove, and a magnetic absorption layer is bonded to the top of the sponge block (5).

7. A battery cell group clamping device, characterized in that: It includes: The sponge vacuum suction cup according to any one of claims 1 to 6; A connecting bracket (2) is provided with a vacuum generator; the vacuum generator is connected to the vacuum connecting pipes (7) of the plurality of vacuum suction cup bodies (3) via a connecting pipe; A control module is mounted on the connection bracket (2) and connected to the vacuum generator and the atmosphere communicating electronic valve (6) to control the operation of the vacuum generator and the atmosphere communicating electronic valve (6).

8. The battery cell assembly clamping device according to claim 7, characterized in that: The battery cell assembly clamping device further comprises an air pump mounted on the connecting bracket (2), the air pump being connected to the airbag pushing member (404) of the locking member (4); The control module is connected to the air pump and is used to inflate the airbag pusher (404) when the vacuum suction cup body (3) is disassembled to resist the retaining ring (405), and at the same time drive the sliding rod (401) to compress the elastic member (402) to pull the positioning block (403) out of the positioning slot (8).

9. The battery cell assembly clamping device according to claim 8, characterized in that: The air pump is connected to a plug connector mounted on a suction cup mounting frame (1) via an air pipe, and the plug connector is plugged into a connecting air nozzle (40402) of an airbag pushing member (404).

10. A method for clamping a battery cell group, characterized in that: It includes the following steps: Providing a battery cell group clamping device as described in any one of claims 7 to 9; Obtaining the length and width of the battery cell group to be clamped, and then determining the number and distribution positions of the vacuum suction cup bodies (3) according to the length and width; The corresponding vacuum suction cup bodies (3) and sponge blocks (5) are installed on the suction cup mounting frame (1) according to the number and distribution positions, so as to form a sponge vacuum suction cup corresponding to the battery cell group to be clamped at the current time; When the length and width of the battery cell group to be clamped next time change, the corresponding vacuum suction cup body (3) is increased or decreased according to the change of the length and width to form a new sponge vacuum suction cup.

Images