A production device for square aluminum shell lithium battery cells

Abstract

The present invention relates to the technical field of automotive parts, and specifically to a production device for square aluminum shell lithium battery cells, which includes a frame and an anode sheet placing table, an anode sheet gluing table, a lamination carrier table, a cathode sheet gluing table, and a cathode sheet placing table arranged on the frame. A mechanical mounting plate is installed on the side wall of the frame, a bracket is fixedly arranged at the lower end of the mechanical mounting plate, multiple groups of second guide rollers are arranged on the bracket, and an anode sheet picking manipulator assembly, a first lamination manipulator assembly, a cathode sheet picking manipulator assembly, and a second lamination manipulator assembly are arranged at the front end of the mechanical mounting plate. Placement grooves are formed on the upper end surfaces of the anode sheet gluing table and the cathode sheet gluing table, a glue box is arranged in each placement groove, and each glue box is driven by a pushing component and moves in a rectangular track; the present invention not only solves the problem of poor compactness of the laminated battery cells, but also overcomes the problem that the ordinary gluing method increases the thickness and weight of the battery cells, resulting in uneven surfaces.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive parts, and specifically relates to a production device for square aluminum shell lithium battery cells. Background Art

[0002] The core of a lithium-ion battery is mainly composed of a positive electrode sheet, a negative electrode sheet, and a separator membrane that separates the positive electrode sheet and the negative electrode sheet. At present, the main processes for preparing the core are the stacking process and the winding process. Compared with the wound lithium-ion battery prepared by the winding process, the stacked lithium-ion battery prepared by the stacking process has the advantages of high energy density, high voltage platform, and small battery internal resistance, and has been widely used in the process of preparing lithium-ion batteries.

[0003] However, compared with wound cores, stacked cores have poor compactness, so the rough blank space volume of stacked cores is relatively large, making them inconvenient to handle; although the existing technology bonds and composites with the separator by sticking tape or glue at the corner edges of the positive and negative electrode sheets, due to the use of the Z-shaped stacking technology, it is difficult to achieve fully automated mechanical production during the process of applying tape and glue, and manual assistance is required. In this way, not only is the operation efficiency low, but workers will be fatigued after working for a long time, resulting in difficulty in maintaining consistent speed and accuracy. Especially in tasks with high repeatability, manual operations are prone to errors, affecting the production progress. Summary of the Invention

[0004] The purpose of the present invention is to provide a production device for square aluminum shell lithium battery cells to solve the problems raised in the above background art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a square aluminum shell lithium battery cell production device, comprising a frame and an anode sheet placing table, an anode sheet coating table, a stacking platform, a cathode sheet coating table and a cathode sheet placing table arranged on the frame, a diaphragm cloth winding roller is installed in the middle of the side wall of the frame, a first guide roller is arranged below the diaphragm cloth winding roller, a mechanical mounting plate is installed below the first guide roller for limited sliding, a bracket is fixedly arranged at the lower end of the mechanical mounting plate, a plurality of groups of second guide rollers are arranged on the bracket, and an anode sheet material taking manipulator assembly, a first stacking manipulator assembly, a cathode sheet material taking manipulator assembly are arranged in sequence from left to right at the front end of the mechanical mounting plate. Parts and a second stacking robot assembly, the upper end surfaces of the anode sheet glue coating station and the cathode sheet glue coating station are provided with placement grooves, and two groups of upper and lower symmetrical glue boxes are arranged on the left and right sides of each group of placement grooves, each group of glue boxes is driven by a pushing assembly and performs rectangular trajectory movement, and the pushing assembly is powered by the robot assembly; a first glue roller and a second glue roller are arranged in each group of glue boxes, the first glue roller is rotatably installed in the glue box through the second central axis and is in direct contact with the glue liquid, the second glue roller is rotatably installed on the glue box through the first central axis, and the first central axis and the second central axis are driven by a linkage assembly to perform synchronous and unidirectional rotational movement, so as to apply the glue liquid to the upper and lower sides of the electrode.

[0006] Preferably, the anode sheet picking robot assembly, the first stacking robot assembly, the cathode sheet picking robot assembly and the second stacking robot assembly are all provided with a pushing frame, and the upper end surfaces of the anode sheet gluing station and the cathode sheet gluing station are both slidably mounted with a connecting frame, the upper end of the connecting frame abuts against the connected pushing frame, and the lower end of the connecting frame is fixedly connected with a vertical pushing bar.

[0007] Preferably, the vertical push strip extends into the glue coating table and is connected to a pushing assembly, and the pushing assembly includes a transverse moving plate, a return spring, a cylindrical cam, a rotating shaft, an eccentric wheel, a square moving frame, a connecting block and a limit frame. One end of the connecting block is fixedly connected to the glue box, and the other end of the connecting block passes through the limit frame and is fixedly connected to the square moving frame. The limit frame is slidably installed in the glue coating table.

[0008] Preferably, the square movable frame is sleeved on the outside of the eccentric wheel, and the eccentric wheel is rotatably installed on the glue coating table through a rotating shaft. The end of the rotating shaft is also fixedly sleeved with a cylindrical cam, and a cylindrical pin is inserted in the wheel groove of the cylindrical cam. The cylindrical pin is fixedly connected with a transverse movable plate, and the transverse movable plate is limitedly slidably installed in the glue coating table.

[0009] Preferably, one end of the transverse moving plate away from the square moving frame is fixedly connected to a return spring, and a side of the transverse moving plate away from the cylindrical pin is provided with an oblique groove, a toggle column is inserted in the oblique groove, and the toggle column is fixedly connected to the vertical push bar.

[0010] Preferably, the linkage assembly includes a spur gear and a fixed rack. One side of the fixed rack is fixedly arranged on the bottom wall of the placement groove, and the other side of the fixed rack is meshed with the spur gear. The end of the second central shaft extends out of the glue box and is coaxially and fixedly connected with the spur gear. The end of the first central shaft is fixedly sleeved with a driven wheel, and the driven wheel is meshed with a driving wheel through a reversing wheel. The driving wheel is fixedly sleeved on the second central shaft.

[0011] Preferably, on one side where two adjacent glue boxes are close to each other, there is a notch, and a part of the second rubber roller extends out of the notch to contact the surface of the pole piece.

[0012] Preferably, a lifting platform is installed on the lamination carrier table, and L-shaped pressing pieces are arranged on both the front and rear sides of the lifting platform for pressing the separator.

[0013] Preferably, the mechanical mounting plate is driven by a driving assembly and moves horizontally on the frame, and three second guide rollers distributed linearly are installed on the bracket in a limited way.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. By using four manipulator assemblies in cooperation with two glue application platforms, the present invention can continuously perform multiple processes such as taking pieces, applying glue, and laminating without manual interference. And by adopting the roller-type glue application method, the glue liquid can be more evenly attached to the surface of the electrode sheet, which not only solves the problem of poor compactness of the laminated battery cell, but also overcomes the problems that the common glue application method increases the thickness and weight of the battery cell, causes its surface to be uneven, and makes it difficult for subsequent assembly into a battery pack.

[0016] 2. By a multi-stage linkage mechanical assembly composed of a moving plate, a return spring, a cylindrical cam, a rotating shaft, an eccentric wheel, a square moving frame, a connecting block, and a limiting frame, the present invention enables the glue box to perform a rectangular trajectory movement adaptively according to the movement state of the manipulator assembly. When the manipulator assembly moves downward, the glue box first moves away from the placement groove and then moves upward, so as to normally place or take out the anode sheet or cathode sheet from the placement groove; when the manipulator assembly moves upward, the glue box first moves towards the placement groove and then moves downward to facilitate the normal progress of the glue application process for the next group of pole pieces.

[0017] 3. By using a spur gear, a fixed rack, a driven wheel, a reversing wheel, and a driving wheel in cooperation, the present invention can convert the horizontal movement of the glue box itself into the synchronous and same-direction rotational movement of the first rubber roller and the second rubber roller. This not only reduces the installation quantity of the power devices for driving the rubber rollers, but also the first rubber roller and the second rubber roller will only rotate when they contact the pole piece, which reduces the leakage of glue to a certain extent. Description of the Drawings

[0018] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of another perspective of the structure of the present invention.

[0020] Figure 3 This is a connection schematic diagram of the mechanical mounting plate and multiple groups of manipulator components of the present invention.

[0021] Figure 4 This is a three-dimensional schematic diagram of the first lamination manipulator component of the present invention and the anode sheet gluing table.

[0022] Figure 5 This is a sectional view of the anode sheet gluing table of the present invention.

[0023] Figure 6 This is a connection schematic diagram of the pushing component and the glue box of the present invention.

[0024] Figure 7 This is a schematic diagram of the pushing component, the glue box and the connection frame of the present invention.

[0025] Figure 8 This is a schematic diagram of the glue box, the linkage component and the pushing component of the present invention.

[0026] Figure 9 This is an exploded view of the pushing component of the present invention.

[0027] Figure 10 This is an exploded view of the pushing component and the linkage part in the present invention.

[0028] In the figure: 1. Frame; 2. Diaphragm cloth roller; 3. First guide roller; 4. Second guide roller; 5. Anode sheet placing table; 6. Anode sheet gluing table; 7. Lamination carrier table; 8. Cathode sheet gluing table; 9. Cathode sheet placing table; 10. Anode sheet picking manipulator component; 11. First lamination manipulator component; 12. Cathode sheet picking manipulator component; 13. Second lamination manipulator component; 14. Mechanical mounting plate; 15. Bracket; 16. Pushing frame; 17. Connection frame; 18. Vertical push bar; 19. Dialing column; 20. Transverse moving plate; 21. Oblique groove; 22. Return spring; 23. Cylindrical pin; 24. Cylindrical cam; 25. Rotating shaft; 26. Eccentric wheel; 27. Square moving frame; 28. Connecting block; 29. Limit frame; 30. Glue box; 31. First rubber roller; 32. Second rubber roller; 33. First central axis; 34. Driven wheel; 35. Reversing wheel; 36. Driving wheel; 37. Second central axis; 38. Straight gear; 39. Fixed rack. Detailed implementation manners

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 to 10 , the present invention provides a technical solution: a production device for a square aluminum shell lithium battery cell, including a frame 1 and an anode sheet placing table 5, an anode sheet gluing table 6, a stacking table 7, a cathode sheet gluing table 8, and a cathode sheet placing table 9 arranged on the frame 1. A diaphragm cloth roller 2 is installed in the middle of the side wall of the frame 1. A first guide roller 3 is arranged below the diaphragm cloth roller 2. A mechanical mounting plate 14 is installed in a limited sliding manner below the first guide roller 3. A bracket 15 is fixedly arranged at the lower end of the mechanical mounting plate 14. A plurality of groups of second guide rollers 4 are arranged on the bracket 15. An anode sheet picking robot component 10, a first stacking robot component 11, a cathode sheet picking robot component 12, and a second stacking robot component 13 are sequentially arranged from left to right at the front end of the mechanical mounting plate 14. Placement grooves are opened on the upper end surfaces of the anode sheet gluing table 6 and the cathode sheet gluing table 8. Two groups of upper and lower symmetric glue boxes 30 are arranged on the left and right sides of each group of placement grooves. Each group of glue boxes 30 is driven by a pushing component and performs a rectangular trajectory movement, and the pushing component is powered by a robot component; a first glue roller 31 and a second glue roller 32 are arranged in each group of glue boxes 30. The first glue roller 31 is rotatably installed in the glue box 30 through a second central shaft 37 and is in direct contact with the glue liquid. The second glue roller 32 is rotatably installed on the glue box 30 through a first central shaft 33. The first central shaft 33 and the second central shaft 37 are driven by a linkage component to perform synchronous and same-direction rotational movements for coating the glue liquid on the upper and lower sides of the electrode sheet.

[0031] Furthermore, the present invention uses four groups of robot components in cooperation with two gluing tables, and multiple processes such as sheet picking, gluing, and stacking can be continuously performed without manual interference. And the roller gluing method is adopted, so that the glue liquid is more evenly attached to the surface of the electrode sheet, which not only solves the problem of poor compactness of the stacked battery cells, but also overcomes the problems that the common gluing method increases the thickness and weight of the battery cells, causes the surface to be uneven, and causes difficulties in subsequent assembly into a battery pack.

[0032] Such as Figures 5 - 10As shown, the anode sheet picking robot assembly 10, the first stacking robot assembly 11, the cathode sheet picking robot assembly 12 and the second stacking robot assembly 13 are all provided with a pushing frame 16, and the upper end surfaces of the anode sheet gluing station 6 and the cathode sheet gluing station 8 are both provided with a connecting frame 17 for limited sliding installation, the upper end of the connecting frame 17 abuts against the connected pushing frame 16, and the lower end of the connecting frame is fixedly connected with a vertical pushing bar 18.

[0033] Furthermore, the four groups of manipulator components have the same structure, all of which are composed of a mounting plate, a cylinder and a suction cup. The pushing frame 16 is a door-type structure and is slidably sleeved on the piston column of the cylinder. The upper end surface of the suction cup is fixedly provided with four guide rods. The upper ends of the guide rods pass through the pushing frame 16 and are fixedly connected to the limiting plate. The lower end of the limiting plate is provided with a spring, which is sleeved on the guide rod. This arrangement allows the pushing frame 16 to squeeze the connecting frame 17 before the suction cup contacts the pole piece.

[0034] like Figures 1 - 3 As shown, the vertical push strip 18 extends into the gluing platform and is connected to the pushing assembly, which includes a transverse moving plate 20, a return spring 22, a cylindrical cam 24, a rotating shaft 25, an eccentric wheel 26, a square moving frame 27, a connecting block 28 and a limiting frame 29. One end of the connecting block 28 is fixedly connected to the glue box 30, and the other end of the connecting block 28 passes through the limiting frame 29 and is fixedly connected to the square moving frame 27. The limiting frame 29 is limitedly slidably installed in the gluing platform. The square moving frame 27 is sleeved on the outside of the eccentric wheel 26, and the eccentric wheel 26 is rotatably installed on the gluing platform through the rotating shaft 25. The end of the rotating shaft 25 is also fixedly sleeved with a cylindrical cam 24. The wheel groove of the cylindrical cam 24 is composed of two groups of half-turn spiral grooves. A cylindrical pin 23 is inserted in the wheel groove of the cylindrical cam 24. The cylindrical pin 23 is fixedly connected to the transverse moving plate 20, and the transverse moving plate 20 is limitedly slidably installed in the gluing platform. A return spring 22 is fixedly connected to one end of the transverse moving plate 20 away from the square moving frame 27 , and an inclined groove 21 is provided on one side of the transverse moving plate 20 away from the cylindrical pin 23 . A toggle column 19 is inserted into the inclined groove 21 , and the toggle column 19 is fixedly connected to the vertical push bar 18 .

[0035] Furthermore, by forming a multi-stage linkage mechanical assembly including a movable plate, a return spring 22, a cylindrical cam 24, a rotating shaft 25, an eccentric wheel 26, a square movable frame 27, a connecting block 28 and a limit frame 29, the glue box 30 can adaptively perform a rectangular trajectory movement according to the motion state of the manipulator assembly. When the manipulator assembly moves downward, the glue box 30 first moves in a direction away from the placement slot and then moves upward, so as to facilitate the normal placement or removal of the anode sheet or cathode sheet into or out of the placement slot; when the manipulator assembly moves upward, the glue box 30 first moves in the direction of the placement slot and then moves downward, so as to facilitate the normal gluing process of the next group of electrodes.

[0036] Specifically, the first stack manipulator assembly 11 moves to directly above the anode sheet gluing table 6, and the cylinder-driven suction cup and the pushing frame 16 thereon move downward. During this process, the pushing frame 16 squeezes the connecting frame 17 downward, causing the connecting frame 17 to drive the vertical push bar 18 to move downward. The toggle post 19 on the vertical push bar 18 acts on the inclined groove 21, causing the transverse moving plate 20 to be forced to squeeze the return spring 22 and drive the cylindrical pin 23 to move away from the square moving frame 27. The cylindrical pin 23 acts on the wheel groove of the cylindrical cam 24, causing the cylindrical cam 24 to be forced to drive the clockwise rotating shaft 25 to rotate 180°. As a result, the end of the eccentric wheel 26 first contacts the left side wall of the square moving frame 27 and then contacts the upper end wall. The square moving frame 27 acts on the glue box 30 through the connecting block 28 and the limiting frame 29, and the limiting frame 29 moves in a straight line up and down within the gluing table. Thus, the adjacent two groups of glue boxes 30 first move together away from the placement groove and then move longitudinally in a straight line away from each other, causing the second rubber roller 32 to first press against the upper and lower sides of the edge of the anode sheet for horizontal coating and then release and move away.

[0037] As Figure 5 , Figure 8 and Figure 10 shown, the linkage assembly includes a spur gear 38 and a fixed rack 39. One side of the fixed rack 39 is fixedly arranged on the bottom wall of the placement groove, and the other side of the fixed rack 39 is meshed with the spur gear 38. The end of the second central shaft 37 extends out of the glue box 30 and is coaxially and fixedly connected with the spur gear 38. The end of the first central shaft 33 is fixedly sleeved with a driven wheel 34, and the driven wheel is meshed with a driving wheel 36 through a reversing wheel 35. The driving wheel 36 is fixedly sleeved on the second central shaft 37. Notches are formed on the adjacent sides of the two groups of glue boxes 30 that are close to each other, and a part of the second rubber roller 32 extends out of the notch and contacts the surface of the electrode sheet. A glue liquid placement cavity for accommodating the first rubber roller 31 is also formed inside the glue box 30, and a glue application port communicating with the glue liquid placement cavity is formed on the outer wall of the glue box 30.

[0038] Furthermore, by setting the spur gear 38, the fixed rack 39, the driven wheel 34, the reversing wheel 35 and the driving wheel 36 to cooperate with each other, the horizontal movement of the glue box 30 itself can be converted into the synchronous and co-directional rotational movement of the first rubber roller 31 and the second rubber roller 32. This not only reduces the installation quantity of the power devices for driving the rubber rollers, but also the first rubber roller 31 and the second rubber roller 32 will only rotate when they contact the electrode sheet, reducing the leakage of glue to a certain extent.

[0039] Specifically, as Figure 10As shown, since the glue box 30 moves along a rectangular trajectory, when the glue box 30 moves horizontally away from the placement groove, the spur gear 38 thereon meshes with the fixed rack 39, causing the second central shaft 37 to rotate clockwise while moving horizontally with the glue box 30. The driving wheel 36 on the second central shaft 37 acts on the driven wheel 34 through the reversing wheel 35, causing the first central shaft 33 to rotate in the same direction as the second central shaft 37, thereby realizing the synchronous and same-direction rotation of the first rubber roller 31 and the second rubber roller 32.

[0040] As Figures 1 - 5 shown, a lifting table is installed on the lamination stage 7, and L-shaped pressing pieces are arranged on both the front and rear sides of the lifting table for pressing the diaphragm. The mechanical mounting plate 14 is driven by a driving component and moves horizontally on the frame 1. Three groups of second guide rollers 4 are linearly arranged and installed on the bracket 15 in a limited manner.

[0041] Furthermore, the driving component includes a horizontally arranged hydraulic cylinder. By arranging the second guide rollers 4, the diaphragm cloth can be further guided and straightened, so that it is stacked on the lamination stage 7 more flatly.

[0042] When the present invention is in use: first, stack the end of the diaphragm cloth in one layer on the stacking carrier 7, then turn on the driving assembly to drive the mechanical mounting plate 14 to perform horizontal reciprocating motion, at this time, the mechanical mounting plate 14 drives the four groups of manipulator assemblies to move to the right first, the anode sheet material taking manipulator assembly 10 is located directly above the anode sheet coating platform 6, and a group of anode sheets are placed in the placement groove of the anode sheet coating platform 6, then the mechanical mounting plate 14 drives the four groups of manipulator assemblies to move to the left, at this time, the first stacking manipulator assembly 11 moves to directly above the anode sheet coating platform 6, and the cylinder thereon drives the suction cup and the pushing frame 16 to move downward, during this process, the pushing frame 16 squeezes the connecting frame 17 downward, so that the connecting frame 17 drives the vertical push bar 18 to move downward, and the toggle column 19 on the vertical push bar 18 acts on the inclined slot 21, so that the transverse moving plate 20 is forced to squeeze the reset spring 22 and drive the cylindrical pin 23 toward away from the square moving frame The cylindrical pin 23 acts on the wheel groove of the cylindrical cam 24, so that the cylindrical cam 24 is driven by the force to rotate the clockwise rotating shaft 25 180°, so that the end of the eccentric wheel 26 first contacts the left side wall of the square moving frame 27 and then contacts the upper end wall, and the square moving frame 27 acts on the glue box 30 by acting on the connecting block 28 and the limit frame 29, and the limit frame 29 performs a linear motion up and down in the glue coating table, so that the two adjacent groups of glue boxes 30 first move together in the direction away from the placement groove and then move longitudinally in opposite directions, so that the second glue roller 32 first presses against the upper and lower sides of the edge of the anode sheet for horizontal coating and then releases and moves away; then the first stacking robot assembly 11 takes out the anode sheet coated with glue and attaches it to the bottom diaphragm cloth, and the second stacking robot assembly 13 takes out the cathode sheet coated with glue and attaches it to the second diaphragm cloth, and so on, to obtain a lithium battery cell with a fixed structure and a flat surface.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production device for a square aluminum shell lithium battery cell, comprising a frame (1), an anode sheet placing table (5), an anode sheet gluing table (6), a stacking table (7), a cathode sheet gluing table (8), and a cathode sheet placing table (9) arranged on the frame (1), characterized in that: In the middle of the side wall of the frame (1), a diaphragm cloth roller (2) is installed. Below the diaphragm cloth roller (2), a first guide roller (3) is provided. Below the first guide roller (3), a mechanical mounting plate (14) is installed with limited sliding. At the lower end of the mechanical mounting plate (14), a bracket (15) is fixedly provided. On the bracket (15), multiple groups of second guide rollers (4) are provided. At the front end of the mechanical mounting plate (14), an anode sheet picking manipulator assembly (10), a first laminating manipulator assembly (11), a cathode sheet picking manipulator assembly (12), and a second laminating manipulator assembly (13) are arranged in sequence from left to right. On the upper end surfaces of the anode sheet gluing table (6) and the cathode sheet gluing table (8), placement grooves are opened. On the left and right sides of each placement groove, two groups of upper and lower symmetric glue boxes (30) are provided. Each group of glue boxes (30) is driven by a pushing component and moves in a rectangular trajectory. The pushing component is powered by the manipulator component; in each group of glue boxes (30), a first glue roller (31) and a second glue roller (32) are provided. The first glue roller (31) is rotatably installed in the glue box (30) through a second central shaft (37) and is in direct contact with the glue liquid. The second glue roller (32) is rotatably installed on the glue box (30) through a first central shaft (33). The first central shaft (33) and the second central shaft (37) are driven by a linkage component to perform synchronous and same-direction rotational movement for coating the glue liquid on the upper and lower sides of the electrode sheet. On the anode sheet picking manipulator assembly (10), the first laminating manipulator assembly (11), the cathode sheet picking manipulator assembly (12), and the second laminating manipulator assembly (13), a pushing frame (16) is provided. On the upper end surfaces of the anode sheet gluing table (6) and the cathode sheet gluing table (8), a connecting frame (17) is installed with limited sliding. The upper end of the connecting frame (17) abuts against and is connected to the pushing frame (16). The lower end of the connecting frame is fixedly connected with a vertical pushing bar (18); The vertical pushing bar (18) extends into the gluing table and is connected to the pushing component. The pushing component includes a transverse moving plate (20), a return spring (22), a cylindrical cam (24), a rotating shaft (25), an eccentric wheel (26), a square moving frame (27), a connecting block (28), and a limiting frame (29). One end of the connecting block (28) is fixedly connected to the glue box (30). The other end of the connecting block (28) penetrates through the limiting frame (29) and is fixedly connected to the square moving frame (27). The limiting frame (29) is installed in the gluing table with limited sliding.

2. The production device for a square aluminum shell lithium battery cell according to claim 1, wherein: The square moving frame (27) is sleeved outside the eccentric wheel (26). The eccentric wheel (26) is rotatably installed on the gluing table through a rotating shaft (25). At the end of the rotating shaft (25), a cylindrical cam (24) is also fixedly sleeved. A cylindrical pin (23) is inserted into the groove of the cylindrical cam (24). The cylindrical pin (23) is fixedly connected to a transverse moving plate (20). The transverse moving plate (20) is installed in the gluing table with limited sliding.

3. A production device for a square aluminum shell lithium battery cell according to claim 2, characterized in that: A return spring (22) is fixedly connected to one end of the transverse moving plate (20) away from the square moving frame (27), and an inclined groove (21) is formed on one side of the transverse moving plate (20) away from the cylindrical pin (23). A toggle column (19) is inserted into the inclined groove (21), and the toggle column (19) is fixedly connected to the vertical push bar (18).

4. A production device for a square aluminum shell lithium battery cell according to claim 1, characterized in that: The linkage assembly comprises a spur gear (38) and a fixed rack (39); one side of the fixed rack (39) is fixedly arranged on the bottom wall of the placement groove; the other side of the fixed rack (39) is meshingly connected to the spur gear (38); the end of the second central shaft (37) extends out of the plastic box (30) and is coaxially fixedly connected to the spur gear (38); the end of the first central shaft (33) is fixedly sleeved with a driven wheel (34); the driven wheel (34) is meshingly connected to the driving wheel (36) via a reversing wheel (35); and the driving wheel (36) is fixedly sleeved on the second central shaft (37).

5. The production device for a square aluminum shell lithium battery cell according to claim 1, wherein: A notch is provided on one side of two adjacent groups of rubber boxes (30) that are close to each other, and a portion of the second rubber roller (32) extends out of the notch to contact the surface of the electrode.

6. The production device for a square aluminum shell lithium battery cell according to claim 1, characterized in that: A lifting platform is installed on the stacking platform (7), and L-shaped pressing sheets are arranged on both the front and rear sides of the lifting platform for pressing the diaphragm.

7. A production device for a square aluminum shell lithium battery cell according to claim 1, characterized in that: The mechanical mounting plate (14) is driven by a driving assembly and moves horizontally on the frame (1), and three groups of linearly distributed second guide rollers (4) are mounted at the upper limit position of the bracket (15).

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