An electric core post-gluing welding tool clamp and a glue pressing assembly thereof

Abstract

The utility model provides a kind of electric core after glue packing welding tool fixture and its press glue subassembly, the press glue subassembly of electric core after glue packing welding tool fixture, comprising: cup holder fixed seat, cup holder fixed seat is formed with the positioning space for positioning electric core cup holder;Connecting rod module, connecting rod module rotation is set on cup holder fixed seat;Compression roller, compression roller rotation is set on connecting rod module;Tension elastic member, tension elastic member is connected with connecting rod module.Relative to prior art, the press glue subassembly of electric core after glue packing welding tool fixture of the utility model can partially compress the collecting plate of electric core with adhesive tape, subsequent electric core can be lifted and pass from the avoidance space, so that the collecting plate on electric core reaches welding position to carry out welding, meets the process requirement of first glue pressing and then welding;Movable frame forms up and down floating effect by glue pressing buffer elastic member, to reduce the friction generated between compression roller and adhesive tape surface, prevent electric core from being offset relative to electric core cup holder under stress.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a welding fixture and its pressing assembly for coating battery cells. Background Technology

[0002] In the production process of lithium batteries, the positive electrode of the battery needs to be wrapped with rubber and the current collector needs to be welded. The former is to ensure the insulation of the positive electrode inside the battery and prevent it from contacting the steel shell, while the latter is to connect the positive electrodes of the entire battery cell to form a whole. Both of these processes are indispensable parts of lithium battery production.

[0003] The state of the circumferential coating of the battery cell has a significant impact on its safety. The width, position, and wrapping properties of the coating tape directly affect whether the cell will short-circuit. If the coating is not positioned correctly, causing the positive terminal or current collector tab to come into contact with the battery cell's steel casing, it will directly lead to a short circuit. If the battery has already been filled with electrolyte, it will generate enormous heat, posing a significant safety hazard. Therefore, the state of the coating and its relative position to the current collector are crucial indicators in the battery manufacturing process.

[0004] The positive current collector has a tab attached, and the presence of the tab has a great impact on the overmolding process. The normal process is to bend the tab after welding the current collector, and then apply the overmolding. However, due to limitations in the production process, it may be necessary to apply the overmolding first and then weld the current collector. In this case, it is necessary to apply local adhesive to the position corresponding to the tab of the cell after the circumferential overmolding is completed, and then weld the current collector. However, there is currently no adhesive pressing component specifically designed for the process of applying adhesive before welding the current collector. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings and deficiencies in the existing technology and to provide a welding fixture and its pressing assembly for battery cell coating.

[0006] One embodiment of this utility model provides a pressure bonding assembly for a welding fixture after battery cell coating, comprising:

[0007] A cup holder, wherein a positioning space for positioning the battery cell cup is formed on the cup holder;

[0008] A linkage module is rotatably mounted on the cup holder. The linkage module is provided with a pressure-adhesive drive mating part for connecting with the drive assembly. The linkage module can rotate relative to the cup holder to the initial position and the pressure-adhesive position.

[0009] The pressure roller is rotatably mounted on the connecting rod module. When the connecting rod module rotates relative to the cup holder from the initial position to the pressing position, the pressure roller can move from one side of the positioning space to the other side of the positioning space. When the cup holder is in the initial position, a clearance space is formed between the pressure roller and the cup holder to avoid the lifting and lowering of the battery cell.

[0010] A tensioning elastic element is provided, which is connected to the connecting rod module. When the connecting rod module moves to the pressing position, the tensioning elastic element undergoes elastic deformation.

[0011] In some optional embodiments, the connecting rod module is provided with a movable frame and a pressure-bonded buffer elastic element. The movable frame is movably connected to the connecting rod module and can move in directions toward and away from the positioning space. The pressure-bonded buffer elastic element is disposed between the movable frame and the pressure-bonded buffer elastic element. When the movable frame moves away from the positioning space, the pressure-bonded buffer elastic element undergoes elastic deformation.

[0012] The pressure roller is rotatably mounted on the movable frame.

[0013] In some alternative embodiments, the movable frame includes a base and two support arms disposed on both sides of the base, with the pressure roller arranged between the two support arms, and the two ends of the pressure roller respectively rotatably engaged with the support arms.

[0014] In some optional embodiments, the linkage module is provided with a plurality of guide holes and a plurality of connecting guide posts, the connecting guide posts movably passing through the guide holes, one end of the connecting guide post being provided with a limit end, the other end of the connecting guide post being connected to the movable frame, and the limit end being located on the side of the linkage module away from the movable frame;

[0015] The pressure-bonded cushioning elastic element includes multiple cushioning springs, which are sleeved on the connecting guide post, and the two ends of the cushioning springs respectively abut against the movable frame and the connecting rod module.

[0016] In some alternative embodiments, the support arm extends toward one side of the connecting rod module, the connecting rod module is provided with an extension that extends toward the other side of the connecting rod module, and the pressure-adhesive drive mating part is disposed on the extension.

[0017] In some alternative embodiments, the pressure-adhesive drive engagement part is a cam roller, which is rotatably disposed on the extension.

[0018] In some optional embodiments, the tensioning elastic element is a tension spring, with pull rings at both ends of the tension spring, a first fixing post on the cup holder, and a second fixing post on the connecting rod module, with the pull rings at both ends of the tension spring respectively sleeved on the first fixing post and the second fixing post.

[0019] In some optional embodiments, the side of the cup holder is provided with a plurality of side positioning grooves, which are arranged sequentially from top to bottom and together form the positioning space.

[0020] In some alternative embodiments, a cup-holding stop is provided at the top of the uppermost side positioning groove, the cup-holding stop is located at the top of the positioning space, the pressure roller is located above the cup-holding stop, and the clearance space is located between the cup-holding stop and the pressure roller.

[0021] Another embodiment of this utility model provides a welding fixture for battery cell coating, including: a pressure bonding component of a welding fixture for battery cell coating as described above.

[0022] Compared to existing technologies, the adhesive pressing component of the welding fixture for battery cell coating of this utility model can locally press the adhesive tape onto the current collector of the battery cell. Subsequently, the battery cell can be raised and pass through the clearance space, so that the current collector on the battery cell reaches the welding position for welding, which meets the process requirement of pressing adhesive before welding. The movable frame forms an up-and-down floating effect through the adhesive pressing buffer elastic element, thereby reducing the friction between the pressure roller and the surface of the adhesive tape and preventing the battery cell from shifting relative to the battery cell support cup due to force.

[0023] To provide a clearer understanding of this invention, the specific embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the adhesive pressing assembly of a welding fixture for battery cell coating according to an embodiment of the present invention.

[0025] Figure 2 An exploded view of a cell holder, a cell, and a current collector as described in one embodiment;

[0026] Figure 3 This is a schematic diagram of one side of the pressure bonding assembly of the welding fixture for the battery cell after coating, according to one embodiment of the present invention.

[0027] Figure 4 An exploded view of the structure of the pressure-pressing assembly of the welding fixture for the battery cell after coating according to an embodiment of the present invention, showing the structure of the cup holder in the hidden part.

[0028] Figure 5 This is a schematic diagram of the welding fixture for the battery cell after coating, according to one embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10. Cup holder; 11. Positioning space; 12. First fixing post; 13. Side positioning groove; 14. Cup holder stop; 20. Linkage module; 21. Adhesive pressing drive mating part; 22. Movable frame; 221. Base; 222. Support arm; 23. Adhesive pressing buffer elastic element; 24. Guide hole; 25. Connecting guide post; 26. Limiting end; 27. Extension part; 28. Second fixing post; 30. Pressure roller; 40. Tensioning elastic element; 50. Battery cell cup holder; 51. Battery cell; 52. Adhesive tape; 53. Collector plate; 54. Electrode tab; 60. Collector plate adsorption assembly; 70. Gripper assembly; 80. Battery cell lifting assembly; Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] Please see Figure 1 One embodiment of this utility model provides a pressure bonding assembly for a welding fixture after battery cell coating, comprising:

[0036] The cup holder 10 has a positioning space 11 formed on it for positioning the battery cell cup 50.

[0037] The connecting rod module 20 is rotatably mounted on the cup holder 10. The connecting rod module 20 is provided with a pressure-adhesive drive mating part 21 for connecting with the drive assembly. The connecting rod module 20 can rotate relative to the cup holder 10 to the initial position and the pressure-adhesive position.

[0038] The pressure roller 30 is rotatably mounted on the connecting rod module 20. When the connecting rod module 20 rotates from the initial position to the pressing position relative to the cup holder 10, the pressure roller 30 can move from one side of the positioning space 11 to the other side of the positioning space 11. When the cup holder 10 is in the initial position, a clearance space is formed between the pressure roller 30 and the cup holder 10 to allow the lifting of the battery cell 51.

[0039] The tensioning elastic element 40 is connected to the connecting rod module 20. When the connecting rod module 20 moves to the pressure position, the tensioning elastic element 40 undergoes elastic deformation.

[0040] The working principle of the pressure bonding assembly of the welding fixture for the battery cell after coating is explained below according to one embodiment of the present invention.

[0041] Please see Figure 2After the battery cell 51 is coated with rubber, it is welded. Before the rubber is pressed, the tape 52 will be higher than the positive terminal face of the battery cell 51. The current collector 53 of the positive terminal is larger than the maximum outer diameter of the battery cell 51 due to the presence of the tab 54, which is larger than the circumference of the rubber coating. The rubber pressing process of the battery cell 51 must ensure that the tape 52 covers the upper surface of the current collector 53 to ensure its insulation. Therefore, it is necessary to perform local rubber pressing on the position that the tab 54 will cover before welding the current collector 53. The rubber pressing component of the welding fixture after the battery cell is coated in this utility model can achieve local rubber pressing on the position that the tab 54 will cover.

[0042] Before the adhesive is applied, the cell cup 50 is positioned within the positioning space 11 of the cup holder 10, the cell 51 is placed on the cell cup 50, and the top of the cell 51 extends to the top of the positioning space 11. The current collector 53 is not yet placed on the top of the cell 51. The adhesive tape 52 is arranged around the top of the cell 51. The height of the top of the cell 51 is approximately level with or slightly higher than the height of the pressure roller 30. Subsequently, the drive assembly drives the connecting rod module 20 to rotate from the initial position to the adhesive application position through the adhesive application drive mating part 21. During the rotation of the connecting rod module 20, the tension elastic element 40 will undergo elastic deformation, and the pressure roller 30 will press over the top of the cell 51, thereby partially pressing the adhesive tape 52 on the top of the cell 51. The position where the adhesive tape 52 is pressed corresponds to the position that the tab 54 of the current collector 53 needs to cover. The size of the pressure roller 30 can be selected according to the actual position that the tab 54 needs to cover. After the adhesive is applied, the connecting rod module 20 is rotated back to its initial position by the elastic force of the drive component or the tensioning elastic element 40.

[0043] It should be noted that the elastic force of the tensioning elastic element 40 can keep the connecting rod module 20 in a taut state, which helps to prevent the connecting rod module 20 from shaking, thereby preventing the pressure roller 30 from shaking and improving the accuracy of the position of the pressing tape 52.

[0044] Please see Figure 3 and Figure 4In some optional embodiments, the connecting rod module 20 is provided with a movable frame 22 and a pressure-buffered elastic element 23. The movable frame 22 is movably connected to the connecting rod module 20 and can move in the direction of approaching and moving away from the positioning space 11. The pressure-buffered elastic element 23 is disposed between the movable frame 22 and the pressure-buffered elastic element 23. When the movable frame 22 moves away from the positioning space 11, the pressure-buffered elastic element 23 undergoes elastic deformation. The pressure roller 30 is rotatably disposed on the movable frame 22. When the pressure roller 30 presses the tape 52 onto the top of the battery cell 51, the pressure roller 30 is subjected to the reaction force of the battery cell 51, causing the movable frame 22 to rise. The rise of the movable frame 22 will cause the pressure cushion elastic element 23 to undergo elastic deformation. The elastic force of the pressure cushion elastic element 23 will drive the pressure roller 30 to keep pressing against the tape 52, thereby achieving the pressing. Moreover, the movable frame 22 can form a floating effect through the pressure cushion elastic element 23, which can avoid the pressure roller 30 from forming a hard contact with the top of the battery cell 51 and the tape 52, thereby reducing the pressure of the pressure roller 30 on the top of the battery cell 51. While providing cushioning, it is also beneficial to reduce the friction generated between the pressure roller 30 and the surface of the tape 52 by reducing the pressure, and prevent the battery cell 51 from shifting relative to the battery cell cup 50 due to the force.

[0045] The specific structure of the movable frame 22 can be designed according to actual needs. For example, in some optional embodiments, the movable frame 22 includes a base 221 and two support arms 222 disposed on both sides of the base 221. The pressure roller 30 is arranged between the two support arms 222, and both ends of the pressure roller 30 are rotatably engaged with the support arms 222. The two support arms 222 are used to mount the pressure roller 30, so that the pressure roller 30 can rotate stably.

[0046] In some optional embodiments, the linkage module 20 is provided with multiple guide holes 24 and multiple connecting guide posts 25. The connecting guide posts 25 move through the guide holes 24, and one end of the connecting guide post 25 is provided with a limiting end 26. The other end of the connecting guide post 25 is connected to the movable frame 22, and the limiting end 26 is located on the side of the linkage module 20 away from the movable frame 22. The pressure-fitting buffer elastic element 23 includes multiple buffer springs, which are sleeved on the connecting guide posts 25. The two ends of the buffer springs abut against the movable frame 22 and the linkage module 20, respectively. When the movable frame 22 floats up and down, the connecting guide posts 25 will rise and fall along the guide holes 24. The limiting end 26 is intended to restrict the connecting guide posts 25 at the guide holes 24 to prevent the connecting guide posts 25 from disengaging from the guide holes 24. In addition, the multiple connecting guide posts 25 improve the movement stability of the movable frame 22, and the multiple buffer springs also help improve the stress stability of the movable frame 22.

[0047] In some alternative embodiments, the support arm 222 extends toward one side of the connecting rod module 20, and the connecting rod module 20 is provided with an extension 27 extending toward the other side of the connecting rod module 20. The pressure driving mating part 21 is provided on the extension 27, thereby avoiding mutual interference between the driving component and the pressure roller 30, which is beneficial to optimizing the structural layout.

[0048] The specific structure of the pressure-adhesive drive mating part 21 can be designed according to actual needs in conjunction with the drive assembly. For example, in some optional embodiments, the drive assembly includes a rotating tower and a cam. The cam is provided with a drive rail, which surrounds the rotation axis of the rotating tower. The cup holder 10 is disposed on the rotating tower and rotates under the drive of the rotating tower. The pressure-adhesive drive mating part 21 is a cam roller, which is rotatably disposed on the extension 27. The cam roller is movably connected to the drive rail. When the cup holder 10 rotates under the drive of the rotating tower, the cam roller also moves along the drive rail. Through the path design of the drive rail, the cam roller is driven by the drive rail and moves relative to the cup holder 10, thereby enabling the connecting rod module 20 to rotate relative to the cup holder 10. The structure and principle of the turret-type drive assembly are well known to those skilled in the art and will not be described in detail here. Of course, in other embodiments, the driving component can also be a driving cylinder. In this case, the pressure driving mating part 21 should be connected to the output shaft of the driving cylinder, and the connecting rod module 20 is rotated by the driving cylinder. This example is not limited to this one.

[0049] The specific structure of the tensioning elastic element 40 can be designed according to actual needs. For example, in some optional embodiments, the tensioning elastic element 40 is a tension spring. Pull rings are provided at both ends of the tension spring. A first fixing post 12 is provided on the cup holder 10, and a second fixing post 28 is provided on the connecting rod module 20. The pull rings at both ends of the tension spring are respectively sleeved on the first fixing post 12 and the second fixing post 28, thereby facilitating the installation and fixing of the tension spring. When the connecting rod module 20 rotates from the initial position to the pressing position, the second fixing post 28 and the pull ring will drive the pull rope spring to be stretched, thereby causing the pull rope spring to produce elastic deformation.

[0050] In some optional embodiments, the side of the cup holder 10 is provided with multiple side positioning grooves 13, which are arranged sequentially from top to bottom. The multiple side positioning grooves 13 together form a positioning space 11. The battery cell cup 50 abuts against the multiple side positioning grooves 13 and is thus positioned in the positioning space 11. Based on the principle that two points determine a line, the multiple side positioning grooves 13 simultaneously position the battery cell cup 50, which helps to improve the positional accuracy of the battery cell cup 50 and also helps to prevent the battery cell cup 50 from shifting.

[0051] In some optional embodiments, a cup-supporting stop 14 is provided at the top of the uppermost side positioning groove 13. The cup-supporting stop 14 is located at the top of the positioning space 11, and the pressure roller 30 is located above the cup-supporting stop 14. When the connecting rod module 20 is in the initial position, the clearance space is located between the cup-supporting stop 14 and the pressure roller 30. The battery cell 51 can be lifted by the battery cell lifting assembly and pass through the clearance space between the pressure roller 30 and the cup-supporting stop 14. The battery cell cup 50 is prevented from rising by the cup-supporting stop 14, thereby preventing the battery cell cup 50 from being lifted by the battery cell 51 and ensuring that the welding process proceeds smoothly.

[0052] The aforementioned pressure-pressing assembly of a welding fixture for battery cell coating can be applied to a welding fixture for battery cell coating, which includes the pressure-pressing assembly as described above. Please refer to... Figure 5 In one embodiment, the welding fixture for the battery cell after coating also includes a current collector adsorption assembly 60, a gripper assembly 70, and a battery cell lifting assembly 80. The current collector adsorption assembly 60, gripper assembly 70, the adhesive pressing assembly, and the battery cell lifting assembly 80 are arranged sequentially from top to bottom. The current collector adsorption assembly 60 is used to adsorb the current collector 53, thereby facilitating welding. The current collector adsorption assembly 60 can be provided with vacuum adsorption holes to adsorb the current collector 53. The gripper assembly 70 is used to hold the battery cell 51. After the battery cell 51 is lifted by the battery cell lifting assembly 80 and passes through the clearance space, the gripper assembly 70 can hold the battery cell 51, keeping the battery cell 51 stable during the welding process. The structure of the gripper assembly 70 can be customized. The system employs two clamping plates and a clamping cylinder that drives the clamping action. A cell lifting assembly 80 is positioned below the positioning space 11, extending into the cell holder 50 to lift the cell 51. The cell lifting assembly 80 can be raised and lowered by the cylinder. Alternatively, when the drive assembly includes a rotating tower and a cam, the cell lifting assembly 80 is positioned on the rotating tower. Rollers can also be mounted on the cell lifting assembly 80, and a lifting guide rail is added to the cam. The rollers are movably connected to the lifting guide rail. When the rotating tower moves the cell lifting assembly 80, the rollers also move along the lifting guide rail. Through the path design of the lifting guide rail, the rollers are raised and lowered, thus driving the cell lifting assembly 80 to rise and fall. After localized adhesive bonding, the cell 51 is lifted by the cell lifting assembly 80 and passes through the clearance space, causing the top of the cell 51 to press against the current collector 53 adsorbed by the current collector adsorption assembly. Then, the welding device performs welding.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure bonding assembly for a welding fixture after battery cell coating, characterized in that, include: A cup holder, wherein a positioning space for positioning the battery cell cup is formed on the cup holder; A linkage module is rotatably mounted on the cup holder. The linkage module is provided with a pressure-adhesive drive mating part for connecting with the drive assembly. The linkage module can rotate relative to the cup holder to the initial position and the pressure-adhesive position. The pressure roller is rotatably mounted on the connecting rod module. When the connecting rod module rotates relative to the cup holder from the initial position to the pressing position, the pressure roller can move from one side of the positioning space to the other side of the positioning space. When the cup holder is in the initial position, a clearance space is formed between the pressure roller and the cup holder to avoid the lifting and lowering of the battery cell. A tensioning elastic element is provided, which is connected to the connecting rod module. When the connecting rod module moves to the pressing position, the tensioning elastic element undergoes elastic deformation.

2. The pressure bonding assembly of a welding fixture for battery cell coating according to claim 1, characterized in that: The connecting rod module is provided with a movable frame and a pressure-bonded buffer elastic element. The movable frame is movably connected to the connecting rod module and can move in the direction of approaching and moving away from the positioning space. The pressure-bonded buffer elastic element is disposed between the movable frame and the pressure-bonded buffer elastic element. When the movable frame moves away from the positioning space, the pressure-bonded buffer elastic element undergoes elastic deformation. The pressure roller is rotatably mounted on the movable frame.

3. The pressure bonding assembly of a welding fixture for battery cell coating according to claim 2, characterized in that: The movable frame includes a base and two support arms disposed on both sides of the base. The pressure roller is arranged between the two support arms, and the two ends of the pressure roller are respectively rotatably engaged with the support arms.

4. The pressure bonding assembly of a welding fixture for battery cell coating according to claim 2, characterized in that: The connecting rod module is provided with multiple guide holes and multiple connecting guide posts. The connecting guide posts move through the guide holes. One end of the connecting guide post is provided with a limit end. The other end of the connecting guide post is connected to the movable frame. The limit end is located on the side of the connecting rod module away from the movable frame. The pressure-bonded cushioning elastic element includes multiple cushioning springs, which are sleeved on the connecting guide post, and the two ends of the cushioning springs respectively abut against the movable frame and the connecting rod module.

5. The pressure bonding assembly of a welding fixture for battery cell coating according to claim 3, characterized in that: The support arm extends toward one side of the connecting rod module, and the connecting rod module is provided with an extension that extends toward the other side of the connecting rod module. The pressure-bonding drive mating part is provided on the extension.

6. The pressure bonding assembly of a welding fixture for battery cell coating according to claim 5, characterized in that: The pressure-adhesive drive mating part is a cam roller, which is rotatably mounted on the extension.

7. The pressure bonding assembly of a welding fixture for battery cell coating according to any one of claims 1 to 6, characterized in that: The tensioning elastic element is a tension spring, and pull rings are respectively provided at both ends of the tension spring. A first fixing post is provided on the cup holder, and a second fixing post is provided on the connecting rod module. The pull rings at both ends of the tension spring are respectively sleeved on the first fixing post and the second fixing post.

8. The pressure bonding assembly of a welding fixture for battery cell coating according to any one of claims 1 to 6, characterized in that: The cup holder has multiple side positioning grooves on its side, which are arranged sequentially from top to bottom and together form the positioning space.

9. The pressure bonding assembly of a welding fixture for battery cell coating according to claim 8, characterized in that: The top of the uppermost side positioning groove is provided with a cup-holding stop, which is located at the top of the positioning space. The pressure roller is located above the cup-holding stop, and the clearance space is located between the cup-holding stop and the pressure roller.

10. A welding fixture for battery cells after coating, characterized in that, include: The adhesive pressing assembly of a welding fixture for battery cell coating as described in any one of claims 1 to 9.

Images