An automatic bonding device for battery cells and end plates

Abstract

This utility model relates to the field of battery manufacturing technology, specifically to an automatic bonding device for battery cells and end plates. It includes a clamping assembly connected to the moving end of a transport robot. The moving end of the transport robot has at least three degrees of freedom. The clamping assembly can clamp and translate the battery cell to a positioning assembly. The positioning assembly forms a limiting structure for the end plate and battery cell to be at the same horizontal position. This utility model improves the transport efficiency of battery cells by positioning the transport robot above the clamping assembly. Secondly, both the end plate and the battery cell form the same positioning reference, ensuring their horizontal positions correspond. Then, the transport robot lowers the battery cell to the end plate for bonding and fixing, maintaining a fixed relative position between the battery cell and the end plate, thereby reducing positional deviation and improving the bonding quality.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to an automatic bonding device for battery cells and end plates. Background Technology

[0002] In the production of new energy batteries, especially power batteries for electric vehicles and large-scale energy storage batteries, the cell module is the core unit of the battery pack. To ensure that the cell module can be accurately installed into the battery pack housing and to protect the internal cells from mechanical stress such as vibration and impact during subsequent use, high-strength end plates are usually glued and fixed to both ends of the module (i.e., both ends in the cell stacking direction). The precision required for the bonding position of the end plate and the cell module is extremely high. Positional deviation not only affects the smoothness of module installation into the housing but also reduces the protective effect of the end plate on the internal cells and may even cause safety hazards due to local stress concentration.

[0003] In existing conventional battery pack production lines, the endplate bonding process includes two modes. One mode is pre-bonding, where the endplate is bonded to an individual cell before the cell modules are stacked. This mode can miniaturize and simplify the operation. However, the existing pre-bonding mode lacks automation and requires manual bonding and fixing of the endplate to the cell. It cannot quickly and accurately ensure the relative relationship between the endplate position and the cell end face (the end face in the stacking direction), which may result in large positional deviations, affecting the endplate's guidance of the module and its protection of the internal cells. Utility Model Content

[0004] This utility model addresses the problem of time-consuming and inaccurate manual bonding of battery cells to end plates by providing an automatic bonding device for battery cells to end plates. The specific technical solution is as follows: An automatic bonding device for battery cells and end plates includes: a clamping assembly connected to the moving end of a transport robot, the moving end of the transport robot having at least three degrees of freedom, the clamping assembly being able to clamp and translate the battery cell to a positioning assembly; the positioning assembly forming a limiting structure that limits the same horizontal position of the end plate and the battery cell.

[0005] Furthermore, the clamping assembly includes: a double-layer buffer plate connected to the moving end of the handling robot; a first translation member or a second translation member connected to the double-layer buffer plate, wherein the movement directions of the first translation member and the second translation member are mutually perpendicular linear directions; and a gripper cylinder connected to the movable end of the first translation member or the second translation member, wherein the gripper cylinder is capable of clamping the battery cell, and the first translation member and the second translation member are capable of driving the gripper cylinder to move horizontally relative to the end plate.

[0006] Preferably, the clamping assembly further includes: a buffer spring shaft disposed between the double buffer plates, the double buffer plates being parallel to each other and perpendicular to the axis of the buffer spring shaft, the double buffer plates being able to compress the compression spring of the buffer spring shaft when they are close to each other; a friction plate connected to the gripper of the gripper cylinder, the friction plate forming a groove or protrusion; and a proximity switch connected to the gripper cylinder, the proximity switch interfering with the battery cell when the gripper cylinder clamps the battery cell.

[0007] Preferably, the positioning component includes a transverse fixing plate and a longitudinal fixing plate fixed relative to the handling robot, the transverse fixing plate and the longitudinal fixing plate being perpendicular to each other, and the transverse fixing plate and the longitudinal fixing plate being able to form a limiting structure for the end plate and the battery cell; a first translation member or a second translation member being able to push the battery cell to the transverse fixing plate or the longitudinal fixing plate to form a limiting structure for the horizontal position of the battery cell.

[0008] Preferably, the positioning component further includes: a transverse clamping block whose moving direction is perpendicular to the transverse fixed plate, the transverse clamping block being able to push the end plate to squeeze the transverse fixed plate to form a transverse limiting structure of the end plate; and a longitudinal clamping plate whose moving direction is perpendicular to the longitudinal fixed plate, the longitudinal clamping block being able to push the end plate to squeeze the longitudinal fixed plate to form a longitudinal limiting structure of the end plate.

[0009] Preferably, the positioning assembly further includes: a transverse cylinder fixed relative to the transverse fixed plate, the telescopic end of the transverse cylinder being connected to a transverse moving plate, the transverse moving plate being connected to a plurality of transverse pressing blocks via a plurality of pressing spring shafts; and a longitudinal cylinder fixed relative to the longitudinal fixed plate, the telescopic end of the longitudinal cylinder being connected to a longitudinal moving plate, the longitudinal moving plate being connected to a plurality of longitudinal pressing blocks via a plurality of pressing spring shafts; the pressing spring shafts form an elastic structure to adjust the distance between the transverse pressing blocks and the transverse moving plate, or to adjust the distance between the longitudinal pressing blocks and the longitudinal connecting plate.

[0010] As can be seen from the above technical solution, this utility model has the following beneficial effects: This invention improves the handling efficiency of battery cells by setting a handling robot to hold the battery cells above the positioning component. Secondly, the end plate and the battery cells form the same positioning reference, so that the horizontal positions of the end plate and the battery cells correspond. Then, the handling robot lowers the battery cells and glues them to the end plate, so that the relative positions of the battery cells and the end plate remain fixed, thereby reducing the positional deviation between the two and improving the bonding quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 A schematic diagram of another embodiment of the clamping component from another angle; Figure 3 for Figure 2 Enlarged view of the structure at point A in the image; Figure 4 A schematic diagram of the structure of another embodiment of the positioning component; Figure 5 for Figure 4 Enlarged view of the structure at point B in the image; Figure 6 for Figure 4 Enlarged view of the structure at point C in the image; Figure 7 This is a schematic diagram of the positioning component from another angle. Figure 8 for Figure 7 Enlarged view of the structure at point D in the image.

[0012] In the diagram: 1. Handling robot; 2. Clamping assembly; 21. Double-layer buffer plate; 22. Buffer spring shaft; 23. First translation component; 24. Second translation component; 25. Gripper cylinder; 26. Friction plate; 27. Proximity switch; 3. Positioning assembly; 31. Lateral cylinder; 32. Lateral moving plate; 33. Lateral fixing plate; 34. Lateral clamping block; 35. Longitudinal cylinder; 36. Longitudinal moving plate; 37. Longitudinal fixing plate; 38. Longitudinal clamping block; 39. Compression spring shaft. Detailed Implementation

[0013] 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 protection scope of the present utility model.

[0014] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. 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.

[0015] like Figure 1 and Figure 2 As shown, this embodiment is an automatic bonding device for battery cells and end plates, characterized in that it includes: a clamping component 2 connected to the moving end of a transport robot 1, the moving end of the transport robot 1 having at least three degrees of freedom, the clamping component 2 being able to clamp and translate the battery cell to a positioning component 3; the positioning component 3 forming a limiting structure that limits the same horizontal position of the end plate and the battery cell.

[0016] Specifically, in the diagram, the x-axis represents the vertical direction, the y-axis represents the horizontal direction, and the z-axis represents the vertical direction. The positive direction of the x-axis is backward, the positive direction of the y-axis is to the right, and the positive direction of the z-axis is upward. In existing battery production processes, the cells and end plates are bonded together. The production mode of this embodiment is a pre-bonding mode, where individual end plates are bonded to the end faces of the cells at both ends in the cell stacking direction, thereby stacking with the remaining cells to form a cell module with end plates bonded to both ends.

[0017] Secondly, the handling robot 1 is a conventional technology in this field, comprising a two-axis (x and z) robot that moves along the y-axis via a parallel track. The moving end of the handling robot 1 is the moving end of the two-axis (x and z) robot, thus the moving end of the handling robot 1 has three degrees of freedom in the x, y, and z directions. The top of the clamping assembly 2 is fixedly connected to the moving end of the handling robot 1 by bolts, enabling the handling robot 1 to move the clamping assembly 2 within a spatial range, thereby moving the clamping assembly 2 above the positioning assembly 3. The fixed base of the handling robot 1 and the positioning assembly 3 are both simultaneously fixed to the ground. The relative positions of the two are fixed. The operator presets the movement path of the moving end of the handling robot 1 according to the relative positions of the two and the relative positions of other stations on the battery cell module production line. This allows the clamping component 2 to fix the battery cell of the previous station through the clamping structure. When the clamping component 2 clamps and fixes the battery cell, the end face of the battery cell (the end face in the stacking direction) is perpendicular to the z-axis. The handling robot 1 can move it above the positioning component 3. The limiting structure of the positioning component 3 can restrict the horizontal movement of the end plate and the battery cell along the x-axis and y-axis, so that the end plate and the battery cell can maintain the same position in the horizontal direction.

[0018] Secondly, the handling robot 1 moves the clamping component 2 along a pre-set path, thereby moving the battery cell above the positioning component 3. The clamping component 2 is finely adjusted in horizontal position relative to the positioning component 3 by the handling robot 1 or its own moving mechanism, so that the end face of the battery cell is aligned with the end face of the end plate (the end face of the battery cell and the end plate both refer to the end face in the stacking direction), that is, the projection of the battery cell along the z-axis is aligned with the end plate. Then, the handling robot 1 presses down the clamping component 2, and then presses down the battery cell until it contacts the end plate to form an adhesive fixation, thereby improving the handling efficiency of the battery cell and the bonding efficiency with the end plate. At the same time, the limiting structure of the positioning component 3 can align the battery cell and the end plate, reducing the positional deviation between the two.

[0019] Furthermore, the clamping assembly 2 includes: a double-layer buffer plate 21 connected to the moving end of the handling robot 1; a first translation member 23 or a second translation member 24 connected to the double-layer buffer plate 21, wherein the movement directions of the first translation member 23 and the second translation member 24 are mutually perpendicular straight lines; and a gripper cylinder 25 connected to the moving end of the first translation member 23 or the second translation member 24, wherein the gripper cylinder 25 is capable of clamping the battery cell, and the first translation member 23 and the second translation member 24 are capable of driving the gripper cylinder 25 to move horizontally relative to the end plate.

[0020] Specifically, the top of the double-layer buffer plate 21 is fixedly connected to the moving end of the handling robot 1 by bolts, and its bottom is fixedly connected to the first translation member 23 by bolts. The moving path of the moving end of the first translation member 23 is parallel to the x-axis, so the moving end of the first translation member 23 can move relative to the double-layer buffer plate 21 along the x-axis. The moving end of the first translation member 23 is fixedly connected to the second translation member 24 by bolts. The moving path of the moving end of the second translation member 24 is parallel to the y-axis, so the moving end of the second translation member 24 can move relative to the first translation member 23 along the y-axis. The moving end of the second translation member 24 is fixedly connected to the gripper cylinder 25 by bolts or a fixing block. The gripping end of the gripper cylinder 25 moves parallel to the x-axis, and it can grip and fix the battery cell so that the end face of the battery cell with respect to the stacking direction is parallel to both the x-axis and the y-axis.

[0021] In this process, the handling robot 1 moves the gripping component 2 above the positioning component 3 and fixes it in place, thus fixing the double-layer buffer plate 21 relative to the positioning component 3. The limiting structure of the positioning component 3 fixes the position of the end plate, thus fixing the double-layer buffer plate 21 relative to the end plate. Next, the first translation component 23 moves the battery cell along the x-axis, so that it is limited by the limiting structure of the positioning component 3 perpendicular to the x-axis, aligning the battery cell with the end plate about the x-axis. Then, the second translation component 24 moves relative to the first translation component 23, and its position relative to the end plate about the y-axis... The battery cell is moved to the end plate and fixed by the positioning component 3 perpendicular to the y-axis, so that the battery cell and the end plate are aligned in the y-axis direction, and thus the horizontal position of the battery cell and the end plate is aligned, that is, the projection of the battery cell along the z-axis direction is aligned with the end face of the end plate. Next, the moving end of the handling robot 1 moves the clamping component 2 downward along the z-axis until the end face of the battery cell and the end plate coincide and are glued and fixed, thereby ensuring the alignment quality of the battery cell and the end plate, reducing the positional deviation between the two, and ensuring the guiding and protective function of the end plate for the battery cell.

[0022] Furthermore, the clamping assembly 2 also includes: a buffer spring shaft 22 disposed between the double-layer buffer plates 21, the double-layer buffer plates 21 being parallel to each other and perpendicular to the axis of the buffer spring shaft 22, which can compress the compression spring of the buffer spring shaft 22 when the double-layer buffer plates 21 are close to each other; a friction plate 26 connected to the gripper of the gripper cylinder 25, the friction plate 26 forming a groove or a protrusion; and a proximity switch 27 connected to the gripper cylinder 25, which interferes with the battery cell when the gripper cylinder 25 clamps the battery cell.

[0023] Specifically, the clamping assembly 2 includes two parallel double-layer buffer plates 21, both perpendicular to the z-axis. The top double-layer buffer plate 21 is fixedly connected to the top of the buffer spring shaft 22 by bolts, while the bottom double-layer buffer plate 21 is slidably connected to the buffer spring shaft 22. The buffer spring shaft 22 includes a shaft and a compression spring surrounding the shaft. When the battery cell moves downward and coincides with the end face of the end plate, the gripper cylinder 25, the second translation member 24, and the first translation member 23 are all subjected to an upward impact, which is then transmitted to the bottom double-layer buffer plate 21. The upward impact compresses the spring to form a buffer. The gap between the bottom and top double-layer buffer plates 21... The distance is reduced to avoid direct contact and hard contact between the two. Secondly, the opposing surfaces of the grippers are fixedly connected to friction plates 26, which form crisscrossing grooves or protrusions to increase the contact area between themselves and the battery cell, thereby improving the gripping effect of the friction plates 26 on the battery cell. This ensures that the battery cell will not fall off when the gripper cylinder 25 is fixing the battery cell. Furthermore, the proximity switch 27 is a conventional technology. When the gripping assembly 2 clamps the battery cell, the end face of the battery cell perpendicular to the z-axis presses against the proximity switch 27. When a battery cell falls off, the proximity switch 27 resets and sends a signal of battery cell falling through the alarm to remind the operator.

[0024] like Figure 4 and Figure 5 As shown, the positioning component 3 includes a transverse fixing plate 33 and a longitudinal fixing plate 37 fixed relative to the handling robot 1. The transverse fixing plate 33 and the longitudinal fixing plate 37 are perpendicular to each other and can form a limiting structure for the end plate and the battery cell. The first translation member 23 or the second translation member 24 can push the battery cell to the transverse fixing plate 33 or the longitudinal fixing plate 37 to form a limiting structure for the horizontal position of the battery cell.

[0025] Specifically, the horizontal fixing plate 33 is perpendicular to the y-axis, and the vertical fixing plate 37 is perpendicular to the x-axis. The horizontal fixing plate and the vertical fixing plate 37 form an L-shaped fence structure, and their inner sides can coincide with the side of the end plate and the battery cell (the side parallel to the z-axis) to form a horizontal limiting structure for the end plate and the battery cell. Next, the handling robot 1 moves the battery cell along a predetermined path to the top of the L-shaped fence structure. The first translation member 23 and the second translation member 24 respectively push the side of the battery cell (the side parallel to the z-axis) to coincide with the inner side of the horizontal fixing plate 33 and the vertical fixing plate 37, thereby restricting the horizontal movement of the battery cell. The positioning component 3 can fix the end plate, thereby fixing the relative position of the end plate and the battery cell.

[0026] like Figure 6 , Figure 7 and Figure 8 As shown, the positioning component 3 also includes: a transverse pressing block 34 whose moving direction is perpendicular to the transverse fixing plate 33, the transverse pressing block 34 being able to push the end plate to press the transverse fixing plate 33 to form a transverse limiting structure of the end plate; and a longitudinal pressing plate 38 whose moving direction is perpendicular to the longitudinal fixing plate 37, the longitudinal pressing block 38 being able to push the end plate to press the longitudinal fixing plate 37 to form a longitudinal limiting structure of the end plate.

[0027] Specifically, the lateral clamping block 34 moves along the y-axis under the action of external force, and the longitudinal clamping block 38 moves along the x-axis under the action of external force. The lateral clamping block 34 is opposite to the lateral fixing block, and the longitudinal clamping block 38 is opposite to the longitudinal fixing block. The four of them form a movable limiting structure to restrict the horizontal position of the end plate. The lateral clamping block 34 pushes the end plate to the fixed position of the lateral fixing block along the y-axis, and the longitudinal clamping block 38 pushes the end plate to the fixed position of the longitudinal fixing block along the x-axis, so that the side of the end plate (the side parallel to the z-axis) coincides with the inner side of the lateral clamping block 34, the lateral fixing block, the longitudinal clamping block 38, and the longitudinal fixing block, respectively, thereby forming a limiting structure for the horizontal position of the end plate, fixing it relative to the handling robot 1. When the handling robot 1 moves the clamping component 2 along the predetermined path, the clamping component 2 and the battery cell can always be located above the end plate.

[0028] Furthermore, the positioning assembly 3 also includes: a transverse cylinder 31 fixed relative to the transverse fixed plate 33, the telescopic end of the transverse cylinder 31 being connected to a transverse moving plate 32, the transverse moving plate 32 being connected to a plurality of transverse pressing blocks 34 via a plurality of pressing spring shafts 39; a longitudinal cylinder 35 fixed relative to the longitudinal fixed plate 37, the telescopic end of the longitudinal cylinder 35 being connected to a longitudinal moving plate 36, the longitudinal moving plate 36 being connected to a plurality of longitudinal pressing blocks 38 via a plurality of pressing spring shafts 39; the pressing spring shafts 39 form an elastic structure to adjust the distance between the transverse pressing blocks 34 and the transverse moving plate 32, or to adjust the distance between the longitudinal pressing blocks 38 and the longitudinal connecting plate.

[0029] Specifically, the compression spring shaft 39 and the buffer spring shaft 22 have the same structure, both including a compression spring and a shaft; secondly, the transverse cylinder 31 is fixed relative to the six transverse fixed plates 33, and the extension direction of its telescopic end is consistent with the direction of the y-axis. It is fixedly connected to the transverse moving plate 32 by bolts. The length direction of the transverse moving plate 32 is perpendicular to the y-axis, and its bottom forms a sliding connection with the slide rail. The side of the transverse moving plate 32 near the end plate is connected to the six transverse pressing blocks 34 through the compression spring shaft 39. The shaft of the compression spring shaft 39 is connected to the transverse moving plate. 32 is fixedly connected and slidably connected to the transverse pressing block 34, wherein the interior of the transverse pressing block 34 forms a cavity for placing part of the pressing spring shaft 39; next, the end plate contacts the L-shaped fence structure, the transverse cylinder 31 pushes the transverse moving plate 32, the transverse moving plate 32 moves the same distance, and then pushes the transverse pressing block 34 through the pressing spring shaft 39. Each transverse pressing block 34 squeezes the compression spring of the pressing spring shaft 39 according to the y-axis size of the end plate, forming a floating limiting structure, thereby adapting to end plates with different y-axis sizes.

[0030] Secondly, the longitudinal cylinder 35 is fixed relative to the six longitudinal fixed plates 37, and the extension direction of its telescopic end is consistent with the x-axis direction. It is fixedly connected to the longitudinal moving plate 36 by bolts. The length direction of the longitudinal moving plate 36 is parallel to the x-axis, and its bottom is slidably connected to the slide rail. The longitudinal moving plate 36 is connected to the six longitudinal clamping blocks 38 through the clamping spring shaft 39. The six longitudinal clamping blocks 38 correspond to the six longitudinal fixed plates 37 respectively, forming a limiting structure for fixing a single end plate. The shaft of the clamping spring shaft 39 is fixed to a single longitudinal moving plate 36. The end plate is connected and slidably connected to the longitudinal clamping block 38, wherein the interior of the longitudinal clamping block 38 forms a cavity for placing part of the clamping spring shaft 39; next, the end plate contacts the L-shaped fence structure, the longitudinal cylinder 35 pushes the longitudinal moving plate 36, the longitudinal moving plate 36 pushes the six clamping spring shafts 39 to move the same distance, and then the clamping spring shafts 39 push the longitudinal clamping block 38, each longitudinal clamping block 38 squeezes the compression spring of the clamping spring shaft 39 according to the x-axis dimension of the end plate, forming a floating limiting structure to adapt to end plates with different x-axis dimensions.

[0031] Among them, the transverse clamping block 34 and the longitudinal clamping block 38 are both floating limit structures. They are subjected to the elastic force of compression springs of different sizes, which in turn apply pressure to the end plate. Thus, the transverse clamping block 34, the transverse fixing plate, the longitudinal clamping block 38 and the longitudinal fixing plate 37 can fix the horizontal position of the end plate, thereby fixing the relative position of the end plate with the transverse fixing plate 33 and the longitudinal fixing plate 37, and thus fixing the relative position of the end plate with the battery cell.

[0032] 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.

[0033] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. An automatic bonding device for battery cells and end plates, characterized in that, include: A clamping assembly (2) is connected to the moving end of a transport robot (1), the moving end of which has at least three degrees of freedom, and the clamping assembly (2) is capable of clamping and translating the battery cell to a positioning assembly (3); The positioning component (3) forms a limiting structure that limits the same horizontal position of the end plate and the battery cell.

2. The automatic pasting device according to claim 1, characterized in that: The clamping assembly (2) includes: A double-layer buffer plate (21) is connected to the moving end of the transport robot (1); A first translation member (23) or a second translation member (24) connected to the double-layer buffer plate (21), wherein the movement directions of the first translation member (23) and the second translation member (24) are mutually perpendicular linear directions; and A gripper cylinder (25) is connected to the movable end of the first translation member (23) or the second translation member (24). The gripper cylinder (25) is capable of gripping the battery cell. The first translation member (23) and the second translation member (24) are capable of driving the gripper cylinder (25) to move horizontally relative to the end plate.

3. The automatic pasting device according to claim 2, characterized in that: The clamping assembly (2) further includes: A buffer spring shaft (22) is disposed between the double-layer buffer plates (21), the double-layer buffer plates (21) being parallel to each other and perpendicular to the axis of the buffer spring shaft (22), and the double-layer buffer plates (21) being able to compress the compression spring of the buffer spring shaft (22) when they are close to each other. A friction plate (26) connected to the gripper of the gripper cylinder (25) has a groove or a protrusion. The proximity switch (27) connected to the gripper cylinder (25) interferes with the battery cell when the gripper cylinder (25) clamps the battery cell.

4. The automatic pasting device according to claim 2, characterized in that: The positioning component (3) includes a transverse fixing plate (33) and a longitudinal fixing plate (37) fixed relative to the handling robot (1). The transverse fixing plate (33) and the longitudinal fixing plate (37) are perpendicular to each other. The transverse fixing plate (33) and the longitudinal fixing plate (37) can form a limiting structure for the end plate and the battery cell. The first translation member (23) or the second translation member (24) can push the battery cell to the transverse fixing plate (33) or the longitudinal fixing plate (37) to form a limiting structure for the horizontal position of the battery cell.

5. The automatic pasting device according to claim 4, characterized in that: The positioning component (3) also includes: A transverse pressing block (34) with a moving direction perpendicular to the transverse fixing plate (33) is provided. The transverse pressing block (34) can push the end plate to squeeze the transverse fixing plate (33) to form a transverse limiting structure of the end plate. A longitudinal pressing plate with a moving direction perpendicular to the longitudinal fixing plate (37), the longitudinal pressing block (38) can push the end plate to squeeze the longitudinal fixing plate (37) to form a longitudinal limiting structure of the end plate.

6. The automatic pasting device according to claim 5, characterized in that: The positioning component (3) also includes: A transverse cylinder (31) is fixed relative to the transverse fixed plate (33). The telescopic end of the transverse cylinder (31) is connected to a transverse moving plate (32). The transverse moving plate (32) is connected to a plurality of transverse pressing blocks (34) through a plurality of pressing spring shafts (39). A longitudinal cylinder (35) is fixed relative to the longitudinal fixed plate (37). The telescopic end of the longitudinal cylinder (35) is connected to a longitudinal moving plate (36). The longitudinal moving plate (36) is connected to a plurality of longitudinal pressing blocks (38) through a plurality of pressing spring shafts (39). The compression spring shaft (39) forms an elastic structure to adjust the distance between the transverse compression block (34) and the transverse moving plate (32), or to adjust the distance between the longitudinal compression block (38) and the longitudinal connecting plate.

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