A lithium battery top cover patch device and a patching method

Abstract

The application provides a lithium battery top cover patch device and a patching method, which comprise a control unit, a battery cell conveying and positioning unit, a patch storage and positioning unit, a patching unit and a glue tearing and waste removing unit. The battery cell conveying and positioning unit can transport and position a plurality of battery cells under the control of the control unit. The patch storage and positioning unit can lift centrifugal paper under the control of the control unit. The glue tearing and waste removing unit can position and remove waste of the centrifugal paper under the control of the control unit. The patching unit can carry a plurality of top cover patches on the positioned centrifugal paper and move them to the top covers of the plurality of battery cells under the control of the control unit. Through the cooperation of the control unit, the battery cell conveying and positioning unit, the patch storage and positioning unit, the patching unit and the glue tearing and waste removing unit, the top cover of the battery can be efficiently and high-quality patched.

Description

Technical Field

[0001] This invention relates to the field of underground coal mine transportation machinery technology, specifically to a lithium battery top cover patching device and patching method. Background Technology

[0002] With the rapid development of lithium batteries, the requirements for the quality and production capacity of lithium battery products are becoming increasingly higher. In the production process of square lithium batteries, a top cover patch is attached to the battery cover plate in the finished product stage for insulation.

[0003] Currently, most applications employ manual or automated bonding methods. Manual bonding cannot guarantee bonding quality, resulting in defects such as skewing and lifting, and is inefficient with high labor costs. Automated bonding equipment also cannot guarantee bonding quality. For example, the prior art document CN109599587A discloses a fully automated top cover bonding device for lithium-ion square power batteries, including a feeding device, a positioning platform, a picking device, an adsorption device, and a transfer device. The feeding device supplies insulating sheets, and the picking and adsorption devices are mounted on the transfer device. The transfer device drives the picking device to pick up the sheet from the feeding device and place it on the positioning platform. The transfer device then drives the adsorption device to pick up the sheet from the positioning platform and attach it to the battery top cover. This equipment has a simple structure, with only one station for both the picking and adsorption devices, resulting in low efficiency and an inability to guarantee bonding quality. Furthermore, this equipment cannot remove and recycle the centrifugal paper on the bottom of the sheet. Summary of the Invention

[0004] The technical problem to be solved by this invention is how to efficiently and with high quality attach the top cover of the battery.

[0005] The present invention solves the above-mentioned technical problems through the following technical means:

[0006] A lithium battery top cover patching device includes a control unit (2), a cell conveying and positioning unit (3), a patch storage and positioning unit (4), an attachment unit (5), and a glue-removing and waste-discharging unit (6). The cell conveying and positioning unit (3) can control the transport and positioning of multiple cells (71) through the control unit (2). The patch storage and positioning unit (4) can control the lifting of centrifugal paper (8) through the control unit (2). The glue-removing and waste-discharging unit (6) can control the positioning and waste-discharging of centrifugal paper (8) through the control unit (2). The attachment unit (5) can control the transport of multiple top cover patches (81) on the positioned centrifugal paper (8) to the top cover of multiple cells (71) through the control unit (2).

[0007] Beneficial effects: Through the cooperation of the control unit, cell delivery and positioning unit, patch storage and positioning unit, patching unit, and adhesive removal and waste removal unit, the top cover of the battery can be patched efficiently and with high quality.

[0008] Furthermore, the battery cell delivery and positioning unit (3) includes a mounting frame (31), a conveyor belt (32), a tray blocking assembly (33), and a positioning anti-collision sensor (34). The front and rear ends of the top wall of the mounting frame (31) are fixed with the conveyor belt (32). A tray (7) is placed on the conveyor belt (32). Multiple battery cells (71) arranged in combination are placed in the tray (7). The input end of the mounting frame (31) is fixed with the positioning anti-collision sensor (34). The tray blocking assembly (33) is fixed on both sides of the top wall of the mounting frame (31).

[0009] Beneficial effects: Through the installation of conveyor belts, pallet blocking components, and positioning anti-collision sensors, the conveyor belts can transport battery cells, the pallet blocking components can block the pallets, and the positioning anti-collision sensors can detect whether the pallets are in position.

[0010] Furthermore, the tray blocking assembly (33) includes a blocking cylinder (331), a blocking block (332), and a movable wheel (333). The blocking cylinder (331) is fixed on the mounting frame (31). The output end of the blocking cylinder (331) extends through the mounting frame (31) and is fixed to the blocking block (332). The movable wheel (333) is rotatably connected to the blocking block (332).

[0011] Beneficial effects: Through the cooperation of the blocking cylinder, blocking block, and movable wheel, the blocking cylinder can drive the blocking block to rise when it rises, thus blocking the tray. The movable wheel can reduce the friction between the blocking block and the tray when it descends.

[0012] Furthermore, a cell lifting assembly (35) is fixed in the middle of the mounting frame (31); the cell lifting assembly (35) includes a lifting cylinder (351), a tray positioning plate (352), and a guide rod (353). The lifting cylinder (351) is fixed through the top wall of the mounting frame (31). The output end of the lifting cylinder (351) extends out of the top wall of the mounting frame (31) and is fixed with the tray positioning plate (352). Guide rods (353) are fixed at the four corners of the tray positioning plate (352). The guide rods (353) slide through the top wall of the mounting frame (31) and are connected to it.

[0013] Beneficial effects: By setting up the battery cell lifting component, the pallet positioning plate rises with the lifting cylinder to lift the pallet for initial positioning.

[0014] Furthermore, a battery cell positioning mechanism (36) is provided above the battery cell lifting assembly (35). The battery cell positioning mechanism (36) includes a battery cell positioning plate (361), a positioning frame (362), an output component (363), and a battery lift sensor (364). The battery cell positioning plate (361) is designed as a thin plate with several square holes. The size and number of square holes are consistent with the length, width, and number of the battery cell. The battery cell positioning plate (361) is fixed inside the positioning frame (362). Output components (363) are fixed at both the front and rear ends of the positioning frame (362). The free ends of each output component (363) are fixed on the mounting bracket (31) at the corresponding position. Battery lift sensors (364) are fixed on both sides of the positioning frame (362). The battery lift sensors (364) are composed of multiple pairs of sensors and are located on both sides of the tray (7).

[0015] Beneficial effects: Through the setting of the cell positioning mechanism, the square holes of the cell positioning plate can accurately position the cells in the tray, and the anti-battery lift sensor can detect that the cells are lifted when the cell positioning plate is lifted.

[0016] Furthermore, the patch storage positioning unit (4) includes positioning rods (41), guide plates (42), patch lifting components (43), and patch limiting sensors (44). Multiple positioning rods (41) are provided, which cooperate with each other to form a rectangular space. Guide plates (42) are fixed at both ends of the rectangular space surrounded by the positioning rods (41). Centrifugal paper (8) is placed between the guide plates (42) and the positioning rods (41) on both sides. Multiple top cover patches (81) are attached to the centrifugal paper (8). Patch lifting components (43) are provided below the centrifugal paper (8). Patch lifting components (43) can drive the centrifugal paper (8) to move up and down. Patch limiting sensors (44) are fixed at the top of the positioning rods (41) on both sides.

[0017] Beneficial effects: By setting up the patch storage and positioning unit, the patch lifting component can drive the centrifugal paper to move up and down, and the patch limit sensing can ensure that the centrifugal paper is adsorbed in the same position each time.

[0018] Furthermore, the attachment unit (5) includes a Y-axis servo component (51), an X-axis servo component (52), a Z-axis servo component (53), and an attachment suction cup (54). Two Y-axis servo components (51) are arranged parallel to each other along the X-axis. An X-axis servo component (52) is slidably connected between the two Y-axis servo components (51). A Z-axis servo component (53) is slidably connected to the X-axis servo component (52) along the Z-axis. An attachment suction cup (54) is fixed at the bottom of the Z-axis servo component (53). The suction holes in the attachment suction cup (54) are spaced at the same distance as the positions of the multiple top cover patches (81) and the multiple battery cells (71).

[0019] Beneficial effects: By setting up the Y-axis servo component, X-axis servo component, and Z-axis servo component, the top cover patch can be moved to various designated positions by attaching a suction cup.

[0020] Furthermore, the adhesive-removing waste removal unit (6) includes a support plate (61), a clamping assembly (62), a booster assembly (63), and a waste removal channel (64). The clamping assembly (62) is fixed on the side of the support plate (61) away from the waste removal channel (64), and the booster assembly (63) is fixed on the side of the support plate (61) close to the waste removal channel (64). The waste removal channel (64) is placed on the adjacent side of the booster assembly (63).

[0021] Beneficial effects: By setting up the adhesive-tear waste discharge unit, the clamping component can clamp the centrifugal paper, and the booster component can enable the centrifugal paper to enter the waste discharge channel.

[0022] Furthermore, the booster assembly (63) includes a booster cylinder (631), a buffer component (632), and a touch plate (633). The booster cylinder (631) is fixed on the support plate (61). The output end of the booster cylinder (631) extends upward and is fixed with the buffer component (632). The top of the buffer component (632) is fixed with the touch plate (633).

[0023] Beneficial effect: The buffer component ensures that the booster cylinder applies force evenly, preventing the centrifugal paper from jumping out of the waste discharge channel.

[0024] The present invention also discloses a bonding method using the lithium battery top cover bonding device described in any of the above technical solutions, comprising the following steps:

[0025] S1 controls the multiple battery cells (71) to flow along the battery cell delivery and positioning unit (3) to the bottom of the attachment unit (5) through the control unit (2);

[0026] After the multiple battery cells (71) in S2 come to a stop, the control unit (2) controls the battery cell delivery and positioning unit (3) to perform dual positioning on the multiple battery cells (71);

[0027] After S3 multiple cells (71) are double-positioned, the control unit (2) controls the attaching unit (5) to move above the patch storage positioning unit (4), and the attaching unit (5) transports the centrifugal paper (8) in the patch storage positioning unit (4) to the adhesive removal and waste discharge unit (6) to position the centrifugal paper (8);

[0028] The S4 patch storage positioning unit (4) lifts the centrifugal paper (8) to ensure that the centrifugal paper (8) is adsorbed in the same position each time.

[0029] The S5 attaching unit (5) rises to separate the top cover patch (81) from the centrifugal paper (8), and the attaching unit (5) moves the multiple top cover patches (81) to the top cover of the multiple cells (71).

[0030] After the S6 top cover patch (81) separates from the centrifugal paper (8), the adhesive removal and waste discharge unit (6) discharges the centrifugal paper (8);

[0031] S7 control unit (2) repeats steps S3-S6 according to the set rules to attach the top cover of all cells (71);

[0032] After the top cover patch (81) of all S8 cells (71) is attached, the control unit (2) controls the cell delivery and positioning unit (3) to release the dual positioning of multiple cells (71), and the multiple cells (71) flow into the next process along the cell delivery and positioning unit (3).

[0033] Beneficial effects: By setting up the patch method, the top cover of the battery can be patched efficiently and with high quality. Attached Figure Description

[0034] Figure 1 This is a perspective view of the lithium battery top cover patch device according to Embodiment 1 of the present invention;

[0035] Figure 2 This is a perspective view of the cell delivery and positioning unit in the lithium battery top cover patching device according to Embodiment 1 of the present invention;

[0036] Figure 3 This is another perspective view of the cell delivery and positioning unit in the lithium battery top cover patching device according to Embodiment 1 of the present invention;

[0037] Figure 4 This is a perspective view of the patch storage and positioning unit in the lithium battery top cover patching device according to Embodiment 1 of the present invention;

[0038] Figure 5 This is a perspective view of the adhesive removal and waste disposal unit in the lithium battery top cover patching device according to Embodiment 1 of the present invention;

[0039] Figure 6 This is a perspective view of the adhesive removal and waste discharge unit (excluding the waste discharge channel) in the lithium battery top cover patching device according to Embodiment 1 of the present invention. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1

[0042] like Figure 1 As shown, this embodiment provides a lithium battery top cover patching device, including a base 1, a control unit 2, a cell conveying and positioning unit 3, a patch storage and positioning unit 4, an attachment unit 5, and an adhesive removal and waste discharge unit 6.

[0043] like Figure 1 As shown, the base 1 includes a mounting base 11 and a support frame 12. One side of the support frame 12 is fixed on the mounting base 11, and the other side of the support frame 12 is grounded. A control unit 2 is fixed on the side wall of the mounting base 11. A peeling and waste removal unit 6 and a patch storage and positioning unit 4 are fixed sequentially on the top wall of the mounting base 11. A cell delivery and positioning unit 3 is placed between the mounting base 11 and the support frame 12. An attachment unit 5 is fixed on the top of the support frame 12. The control unit 2 is existing technology.

[0044] like Figure 1 , Figure 2 , Figure 3As shown, the battery cell conveying and positioning unit 3 includes a mounting frame 31, a conveyor belt 32, a tray blocking assembly 33, a positioning anti-collision sensor 34, a battery cell lifting assembly 35, and a battery cell positioning mechanism 36. The front and rear ends of the top wall of the mounting frame 31 are fixed with the conveyor belt 32, on which a tray 7 is placed. Multiple battery cells 71 arranged in a specific configuration are placed in the tray 7. A positioning anti-collision sensor 34 is fixed to the input end of the mounting frame 31, capable of sensing whether the tray is in position. Tray blocking assemblies 33 are fixed to both sides of the top wall of the mounting frame 31. The tray blocking assembly 33 includes a blocking cylinder 331, a blocking block 332, and a movable... The movable wheel 333 and the blocking cylinder 331 are fixed on the mounting frame 31. The output end of the blocking cylinder 331 extends through the mounting frame 31 and is fixed with a blocking block 332. The movable wheel 333 is rotatably connected to the blocking block 332. When the blocking cylinder 331 rises, it can drive the blocking block 332 to rise, thereby blocking the tray 7. The movable wheel 333 can reduce the friction between the blocking block 332 and the tray 7 when it descends. A cell lifting assembly 35 is fixed in the middle of the mounting frame 31. The cell lifting assembly 35 includes a lifting cylinder 351, a tray positioning plate 352, and a guide rod 353. The lifting cylinder 351 extends through the mounting frame. The top wall of the mounting frame 31 is fixed. The output end of the lifting cylinder 351 extends out of the top wall of the mounting frame 31 and is fixed with a tray positioning plate 352. Guide rods 353 are fixed at the four corners of the tray positioning plate 352, and the guide rods 353 slide through the top wall of the mounting frame 31 and are slidably connected to it. A cell positioning mechanism 36 is provided above the cell lifting assembly 35. The output component 361 of the cell positioning mechanism 36 is fixed on the mounting frame 31. The cell positioning mechanism 36 includes a cell positioning plate 361, a positioning frame 362, an output component 363, and a battery lifting sensor 364. The cell positioning plate 361 is designed with several square holes. A thin plate with square holes of the same size as the length and width of the battery cell, and the number of square holes is the same as the number of battery cells in the tray. The battery cell positioning plate 361 is fixed inside the positioning frame 362. Output components 363 are fixed at both the front and rear ends of the positioning frame 362. The free ends of each output component 363 are fixed on the mounting bracket 31 at the corresponding position. Anti-battery lift sensors 364 are fixed on both sides of the positioning frame 362. The anti-battery lift sensors 364 are composed of multiple pairs of sensors and are located on both sides of the tray. They are used to detect when the battery cell positioning plate 361 is lifted and the battery cell is lifted. In this embodiment, the output component 363 is a downward pressure cylinder.

[0045] like Figure 1 , Figure 4As shown, the patch storage positioning unit 4 includes positioning rods 41, guide plates 42, patch lifting components 43, and patch limiting sensors 44. Multiple positioning rods 41 are provided, which cooperate with each other to form a rectangular space. Guide plates 42 are fixed at both ends of the rectangular space surrounded by the positioning rods 41. Centrifugal paper 8 is placed between the guide plates 42 and the positioning rods 41 on both sides. Multiple top cover patches 81 are attached to the centrifugal paper 8. The patch lifting components 43 are provided below the centrifugal paper 8 and are fixed on the mounting base 11. The patch lifting components 43 can drive the centrifugal paper 8 to move up and down. Patch limiting sensors 44 are fixed at the top of the positioning rods 41 on both sides.

[0046] like Figure 1 As shown, the attachment unit 5 includes a Y-axis servo component 51, an X-axis servo component 52, a Z-axis servo component 53, and an attachment suction cup 54. There are two Y-axis servo components 51, which are fixed on the top walls on both sides of the support frame 12 respectively. The X-axis servo component 52 is slidably connected between the two Y-axis servo components 51. The Z-axis servo component 53 is slidably connected to the X-axis servo component 52. The attachment suction cup 54 is fixed at the bottom of the Z-axis servo component 53. The Y-axis servo component 51, X-axis servo component 52, and Z-axis servo component 53 are all existing technologies and can drive the attachment suction cup 54 to move in the Y-axis, X-axis, and Z-axis directions. The attachment suction cup 54 is also existing technology and can provide suction. The suction hole in the attachment suction cup 54 is consistent with the position of the top cover patch 81 and the spacing of the battery cell 71 in the tray 7.

[0047] like Figure 1 , Figure 5 , Figure 6As shown, the adhesive-removing waste removal unit 6 includes a support plate 61, a clamping assembly 62, a booster assembly 63, and a waste removal channel 64. The clamping assembly 62 is fixed on the side of the support plate 61 away from the waste removal channel 64, and the booster assembly 63 is fixed on the side of the support plate 61 close to the waste removal channel 64. The waste removal channel 64 is placed adjacent to the booster assembly 63. The clamping assembly 62 includes a clamping cylinder 621 and a gripper 622. The clamping cylinder 621 is fixed on the support plate 61, and the output end of the clamping cylinder 621 extends upward and is fixed with the gripper 622. The gripper 622 forms a fixed position with the top wall of the support plate 61, which can clamp the centrifugal paper 8. The booster assembly 63 includes a booster cylinder 631, a buffer component 632, and a contact plate 633. 31 is fixed on the support plate 61. The output end of the booster cylinder 631 extends upward and is fixed with a buffer component 632. The top of the buffer component 632 is fixed with a touch plate 633, which is used to make the centrifugal paper 8 enter the waste discharge channel 64. The buffer component 632 includes a connecting plate 6321, a mounting rod 6322, and a buffer spring 6323. The connecting plate 6321 is fixed on the output end of the booster cylinder 631. A mounting rod 6322 is fixed on each side of the top wall of the connecting plate 6321. A buffer spring 6323 is sleeved on each mounting rod 6322. The free end of the mounting rod 6322 is fixed on the touch plate 633. The buffer component 632 can make the booster cylinder 631 apply force evenly to prevent the centrifugal paper 8 from jumping out of the waste discharge channel 64.

[0048] In use, the control unit 2 controls the tray 7 containing the battery cells 71 to flow from left to right along the battery cell conveying and positioning unit 3 to below the attaching unit 5. During the flow, the tray blocking components 33 are always open. The arrival anti-collision sensor 34 senses that the tray 7 has arrived and controls the control unit 2 to close the left and right tray blocking components 33 of the tray 7. The tray blocking component 33 on the right side of the tray 7 blocks the tray, and the tray blocking component 33 on the left side of the tray 7 prevents a second tray 7 from flowing to below the attaching unit 5 and causing a collision. After the tray 7 stops, the control unit 2 controls the lifting cylinder 351 to rise through the program. At the same time, the tray positioning plate 352 rises with the lifting cylinder 351 to lift the tray 7 for positioning. After cell 351 rises to its position, control unit 2 controls output component 363 to lower the cell positioning plate 361 and positioning frame 362. Simultaneously, the square hole of cell positioning plate 361 precisely positions the cell 71 within tray 7. After precise positioning of cell 71 within tray 7, control unit 2 controls Y-axis servo component 51 and X-axis servo component 52 to work together to move attachment suction cup 54 above the chip storage positioning unit 4, and lowers attachment suction cup 54 to the centrifugal paper 8 via Z-axis servo component 53. Attachment suction cup 54 activates its internal vacuum function and adsorbs the top piece of centrifugal paper 8. Simultaneously, Y-axis servo component 51 and X-axis servo component 52 work together to move attachment suction cup 54 to the adhesive removal and waste discharge unit 6 and away from it. The front end of the centrifugal paper 8 is located inside the gripper 622; at the same time, the storage positioning unit 4 raises the centrifugal paper 8 to the patch limit sensor 44 through the patch lifting component 43 to ensure that the centrifugal paper 8 is consistently adsorbed each time; the gripper 622 clamps the centrifugal paper 8 through the clamping cylinder 621, while the Z-axis servo component 53 drives the attachment suction cup 54 to rise, causing the top cover patch 81 to separate from the centrifugal paper 8; after separation, the booster component 63 uses the booster cylinder 631 and the buffer component 632 to pop up and make the centrifugal paper 8 enter the waste discharge channel 64; then the Y-axis servo component 51 and the X-axis servo component 52 cooperate to move the attachment suction cup 54 to the top of the battery cell 71 in the tray 7, and then lower it to the battery cell 71 to make the top cover patch 81 separate from the battery cell 7. 1. Accurately attach the battery cells. Simultaneously, the vacuum inside the attachment suction cup 54 is closed, separating the attachment suction cup 54 from the battery cells and driving it to rise via the Z-axis servo component 53. The control unit 2 repeats the sticker attaching steps of the attachment suction cup 54 according to the set rules, realizing the attachment of the top cover stickers of all battery cells 71 in the tray 7. After the top cover stickers 81 of all battery cells 71 in the tray 7 are attached, the output component 363 drives the battery cell positioning plate 361 and positioning frame 362 to rise, and at the same time, the battery cell positioning plate 361 separates from the battery cells 71 in the tray 7. When a battery cell 71 gets stuck on the battery cell positioning plate 361 and is lifted up, the anti-battery lift sensor 364 will sense the lifted battery cell 71 and activate the alarm function to automatically stop the machine through the control unit 2.After the output component 363 rises to its position, the lifting cylinder 351 descends, causing the tray 7 to fall onto the conveyor belt 32. Simultaneously, the tray blocking assembly 33 opens, allowing the tray 7 to flow into the next process, completing all the actions of the device.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lithium battery top cover patching device, characterized in that, Includes a control unit (2), a cell delivery and positioning unit (3), a patch storage and positioning unit (4), a patching unit (5), and a glue removal and waste disposal unit (6); The cell transport and positioning unit (3) can control the transport and positioning of multiple cells (71) through the control unit (2), the patch storage and positioning unit (4) can control the lifting of the centrifugal paper (8) through the control unit (2), the adhesive removal and waste removal unit (6) can control the positioning and waste removal of the centrifugal paper (8) through the control unit (2), and the attachment unit (5) can control the transport of multiple top cover patches (81) on the positioned centrifugal paper (8) to the top cover of multiple cells (71) through the control unit (2). The battery cell delivery and positioning unit (3) includes a mounting frame (31), a conveyor belt (32), a tray blocking assembly (33), and a positioning anti-collision sensor (34). The front and rear ends of the top wall of the mounting frame (31) are fixed with the conveyor belt (32). A tray (7) is placed on the conveyor belt (32). Multiple battery cells (71) arranged in combination are placed in the tray (7). The input end of the mounting frame (31) is fixed with the positioning anti-collision sensor (34). The tray blocking assembly (33) is fixed on both sides of the top wall of the mounting frame (31). The cell delivery and positioning unit (3) also includes a cell positioning mechanism (36) located above the tray (7). The cell positioning mechanism (36) includes a cell positioning plate (361), a positioning frame (362), an output component (363), and a battery lift sensor (364). The cell positioning plate (361) is designed as a thin plate with several square holes. The size and number of square holes are consistent with the length, width, and number of the cell. The cell positioning plate (361) is fixed inside the positioning frame (362). The front and rear ends of the positioning frame (362) are fixed with output components (363). The free ends of each output component (363) are fixed on the mounting bracket (31) at the corresponding position. The two sides of the positioning frame (362) are fixed with battery lift sensors (364). The battery lift sensors (364) are composed of multiple pairs of sensors and are located on both sides of the tray (7).

2. The lithium battery top cover patching device according to claim 1, characterized in that: The tray blocking assembly (33) includes a blocking cylinder (331), a blocking block (332), and a movable wheel (333). The blocking cylinder (331) is fixed on the mounting frame (31). The output end of the blocking cylinder (331) extends through the mounting frame (31) and is fixed to the blocking block (332). The movable wheel (333) is rotatably connected to the blocking block (332).

3. The lithium battery top cover patching device according to claim 1, characterized in that: A cell lifting assembly (35) is fixed in the middle of the mounting frame (31); the cell lifting assembly (35) includes a lifting cylinder (351), a tray positioning plate (352), and a guide rod (353). The lifting cylinder (351) is fixed through the top wall of the mounting frame (31). The output end of the lifting cylinder (351) extends out of the top wall of the mounting frame (31) and is fixed with the tray positioning plate (352). Guide rods (353) are fixed at the four corners of the tray positioning plate (352). The guide rods (353) slide through the top wall of the mounting frame (31) and are connected to it.

4. The lithium battery top cover patching device according to claim 1, characterized in that: The patch storage positioning unit (4) includes positioning rods (41), guide plates (42), patch lifting components (43), and patch limiting sensors (44). Multiple positioning rods (41) are provided, which cooperate with each other to form a rectangular space. Guide plates (42) are fixed at both ends of the rectangular space surrounded by the positioning rods (41). Centrifugal paper (8) is placed between the guide plates (42) and the positioning rods (41) on both sides. Multiple top cover patches (81) are attached to the centrifugal paper (8). The patch lifting component (43) is provided below the centrifugal paper (8). The patch lifting component (43) can drive the centrifugal paper (8) to move up and down. Patch limiting sensors (44) are fixed at the top of the positioning rods (41) on both sides.

5. A lithium battery top cover patching device according to claim 1, characterized in that: The attachment unit (5) includes a Y-axis servo component (51), an X-axis servo component (52), a Z-axis servo component (53), and an attachment suction cup (54). Two Y-axis servo components (51) are arranged parallel to each other along the X-axis. An X-axis servo component (52) is slidably connected between the two Y-axis servo components (51). A Z-axis servo component (53) is slidably connected to the X-axis servo component (52) along the Z-axis. An attachment suction cup (54) is fixed at the bottom of the Z-axis servo component (53). The suction holes in the attachment suction cup (54) are spaced at the same distance as the positions of the multiple top cover patches (81) and the multiple battery cells (71).

6. The lithium battery top cover patching device according to claim 1, characterized in that: The adhesive-removing waste removal unit (6) includes a support plate (61), a clamping assembly (62), a booster assembly (63), and a waste removal channel (64). The clamping assembly (62) is fixed on the side of the support plate (61) away from the waste removal channel (64), and the booster assembly (63) is fixed on the side of the support plate (61) close to the waste removal channel (64). The waste removal channel (64) is placed on the adjacent side of the booster assembly (63).

7. A lithium battery top cover patching device according to claim 6, characterized in that: The booster assembly (63) includes a booster cylinder (631), a buffer component (632), and a touch plate (633). The booster cylinder (631) is fixed on the support plate (61). The output end of the booster cylinder (631) extends upward and is fixed with the buffer component (632). The top of the buffer component (632) is fixed with the touch plate (633).

8. A bonding method using the lithium battery top cover bonding device according to any one of claims 1-7, characterized in that: Includes the following steps: S1. The multiple battery cells (71) are transferred along the battery cell delivery and positioning unit (3) to the underside of the attachment unit (5) by the control unit (2); S2. After the multiple battery cells (71) have come to a stop, the control unit (2) controls the battery cell delivery and positioning unit (3) to perform dual positioning on the multiple battery cells (71); S3. After multiple cells (71) are double-positioned, the control unit (2) controls the attaching unit (5) to move above the patch storage positioning unit (4), and the attaching unit (5) transports the centrifugal paper (8) in the patch storage positioning unit (4) to the adhesive removal and waste discharge unit (6) to position the centrifugal paper (8); S4. The patch storage positioning unit (4) lifts the centrifugal paper (8) to ensure that the centrifugal paper (8) is adsorbed in the same position each time; S5. The attaching unit (5) rises to separate the top cover patch (81) from the centrifugal paper (8), and the attaching unit (5) moves the multiple top cover patches (81) to the top cover of the multiple cells (71). S6. After the top cover patch (81) separates from the centrifugal paper (8), the adhesive removal and waste discharge unit (6) discharges the centrifugal paper (8) into waste. S7. The control unit (2) repeats steps S3-S6 according to the set rules to attach the top cover of all cells (71); S8. After the top cover patch (81) of all the cells (71) is attached, the control unit (2) controls the cell delivery and positioning unit (3) to release the dual positioning of multiple cells (71), and the multiple cells (71) flow into the next process along the cell delivery and positioning unit (3).

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