Battery weld seam rust removal and spray equipment and battery production system

Abstract

The embodiment of the application provides a battery weld joint rust removal and spraying device and a battery production system, and relates to the technical field of batteries. The battery weld joint rust removal and spraying device comprises a conveying device, a rust removal device arranged on a conveying path of the conveying device, a first spraying device and a second spraying device. In the rust removal and side weld joint spraying process of the application, the battery monomer is in a horizontal state, the center of gravity is lower than that in a vertical state, and the battery monomer is not prone to shaking and tilting, so that the conveying positioning accuracy is better; the first rotary jacking mechanism is used to drive the rotation of the battery monomer to perform the spraying operation on the side weld joint, so that the spraying liquid can uniformly flow to the peripheral surface of the battery monomer, the overall spraying effect of the side annular weld joint is improved; and after the rust removal and side spraying are completed, the battery monomer is turned over to the vertical state to perform the end face weld joint spraying, the spraying liquid is more likely to remain on the end face weld joint, the spraying effect of the end face weld joint is improved, and the product production yield is significantly improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more specifically, to a battery weld rust removal and spraying equipment and a battery production system. Background Technology

[0002] Battery cells, such as cylindrical battery cells, often require pretreatment processes such as laser rust removal and curing spraying on their casing surfaces. These processes aim to remove surface oxides and contaminants and form a uniform protective or insulating coating to improve the electrical connection performance of the battery cell and the corrosion resistance of the casing.

[0003] As the requirements for energy density and safety of batteries continue to increase, improving the process effectiveness of pretreatment processes such as laser rust removal and curing spraying is a research direction in battery technology. Utility Model Content

[0004] This application provides a battery weld rust removal and spraying equipment and a battery production system, which can improve the rust removal and spraying effect of battery cells.

[0005] In a first aspect, embodiments of this application provide a battery weld rust removal and spraying device, including a conveying device, a rust removal device, a first spraying device, and a second spraying device; the conveying device includes a conveying track and a clamping mechanism located on the conveying track, the clamping mechanism being used to clamp a battery cell and being movable along the conveying track, the clamping mechanism being configured to allow the battery cell to flip between a horizontal and an upright state; the rust removal device is disposed on the conveying path of the conveying device and is used to perform rust removal operations on the weld of the end cap of the battery cell in the horizontal state; the first spraying device... A spraying device is disposed on the conveying path of the conveying device, including a first rotary lifting mechanism and a first spraying mechanism. The first rotary lifting mechanism is used to lift the battery cell on the clamping mechanism and drive the battery cell to rotate around its own axis. The first spraying mechanism is used to spray the side weld of the end cap of the battery cell in the horizontal and rotating state. A second spraying device is disposed on the conveying path of the conveying device, including a second spraying mechanism. The second spraying mechanism is used to spray the end face weld of the battery cell in the vertical state.

[0006] Using the above technical solution, the battery cells are in a horizontal position during rust removal and side weld spraying. Compared to the vertical position, the center of gravity is lower, making it less prone to swaying and tilting, thus providing better conveying and positioning accuracy. When removing rust from the end welds of the horizontally positioned battery cells, metal debris can easily fall off, reducing the possibility of depositing on the end welds and facilitating rust removal. Using the first rotating lifting mechanism to rotate the battery cells for side weld spraying allows the spraying liquid to flow evenly to the circumference of the battery cells, improving the overall spraying effect of the side annular welds. After completing rust removal and side spraying, the battery cells are flipped to an vertical position for end weld spraying. The spraying liquid is more likely to remain on the end welds, improving the spraying effect and significantly increasing product yield.

[0007] In some embodiments of this application, the conveying device further includes a flipping drive mechanism located between the first spraying device and the second spraying device along the conveying direction of the conveying device. The flipping drive mechanism is used to drive the battery cell to flip between the horizontal state and the vertical state.

[0008] By adopting the above technical solution, a flipping drive mechanism is set between the first spraying device and the second spraying device, which can automatically switch the battery cells from a horizontal state to a vertical state, thus improving the side spraying and end-face spraying processes.

[0009] In some embodiments of this application, the flipping drive mechanism includes a first track, and the clamping mechanism includes a clamping assembly, a first mounting member, a transmission assembly, and a transmission wheel. The clamping assembly is mounted on the first mounting member and is used to clamp the battery cell. The first mounting member is mounted on the transmission assembly. The transmission wheel is drivenly connected to the transmission assembly. When the transmission wheel moves to the flipping drive mechanism, it abuts against the first track. The first track is configured to drive the transmission wheel to move linearly in a first direction. The transmission assembly converts the linear motion of the transmission wheel into rotation of the first mounting member around a first circumference. The first direction intersects the conveying direction of the conveying track and the arrangement direction of the clamping mechanism to the conveying track.

[0010] By adopting the above technical solution, the linear motion of the transmission wheel is converted into the circumferential rotation of the first mounting component through the cooperation of the first track with the transmission wheel and transmission components. The battery cell can be flipped without the need for additional power components, and the structure is simple and reliable.

[0011] In some embodiments of this application, the first track sequentially includes a first segment, a second segment, and a third segment along the direction from the first spraying device to the second spraying device. The first segment is located upstream of the second spraying device, the second segment passes at least partially through the second spraying device, and the third segment is located downstream of the second spraying device. Along the first direction, the width of the first segment gradually increases continuously from the starting end to the second segment, the width of the second segment remains constant, and the width of the third segment gradually decreases continuously from the second segment to the end of the first track. The linear motion of the drive wheel on the third segment drives the first mounting member to rotate around a second circumferential direction, which is opposite to the second circumferential direction.

[0012] Using the above technical solution, the first track adopts a three-section gradient structure to improve the stability of the transmission wheel on the first track. In the first section, the transmission wheel can switch the battery cell from a horizontal state to an vertical state. In the second section, it can maintain the stability of the battery cell in the vertical state. In the third section, the battery cell is reset to a horizontal state, which facilitates subsequent curing, testing and unloading steps.

[0013] In some embodiments of this application, the transmission assembly includes a rack, a gear, a rotating shaft, and a shaft bracket. The transmission wheel is mounted on the rack, the rack meshes with the gear, the gear is coaxially connected to the rotating shaft and rotates synchronously, the rotating shaft is mounted on the shaft bracket, and the first mounting member is mounted on the rotating shaft and rotates synchronously with the rotating shaft.

[0014] By adopting the above technical solution, the transmission component is designed as a meshing transmission structure including gears and racks. This not only simplifies the structure but also accurately converts linear motion into rotational motion, improving the accuracy of the clamping mechanism's flipping angle.

[0015] In some embodiments of this application, the number of rust removal devices is two, namely a first rust removal device and a second rust removal device. The first rust removal device includes a first laser rust removal component, which is located on one side of the conveying track along a first direction and is used to remove rust from the side weld. And / or, the second rust removal device includes a second laser rust removal component, which is located on one side of the conveying track along the first direction and is used to remove rust from the end face weld. The first direction intersects the conveying direction of the conveying track and the arrangement direction of the clamping mechanism to the conveying track.

[0016] By adopting the above technical solution, two sets of rust removal devices are set up to clean the end face weld and the side weld respectively, which can effectively improve the overall cleanliness of the weld.

[0017] In some embodiments of this application, the first negative pressure dust collection assembly is mounted on top of the first protective cover and is configured to be located directly above the delivered battery cell, and the first laser rust removal assembly is located on one side of the conveying device along the first direction and is configured to be directly opposite the side wall of the delivered battery cell.

[0018] By adopting the above technical solution, the first laser rust removal component is also designed as a horizontal structure. The laser beam path will not be interfered with by the structure at the top of the battery cell, and the rust removal laser can better fit the side weld. Moreover, it can reduce the vertical space occupied by the whole machine and will not interfere with the first negative pressure dust collection component located above the battery cell, which is conducive to the first negative pressure dust collection component to perform rust removal and dust collection.

[0019] In some embodiments of this application, the first rust removal device further includes a second rotary lifting mechanism, which is used to lift the battery cell on the clamping mechanism and drive the battery cell to rotate around its own axis. The first laser rust removal component is used to remove rust from the rotating side weld.

[0020] By adopting the above technical solution, the first rust removal device is designed to have a second rotary lifting mechanism. The second rotary lifting mechanism is used to lift and drive the battery cell to rotate around its own axis, so that the first laser rust removal component can perform 360° dynamic rust removal on the side weld of the battery cell, thereby improving the rust removal effect.

[0021] In some embodiments of this application, the first rust removal device further includes a first protective cover and a first negative pressure dust collection component, the first protective cover being disposed across the conveying device, and the first laser rust removal component and at least a portion of the first negative pressure dust collection component being respectively installed inside the first protective cover; and / or, the second rust removal device further includes a second protective cover and a second negative pressure dust collection component, the second protective cover being disposed across the conveying device, and the second laser rust removal component and at least a portion of the second negative pressure dust collection component being respectively installed inside the second protective cover.

[0022] By adopting the above technical solution, a more enclosed rust removal working space can be formed by using the first protective cover and the second protective cover, and the debris and dust generated during the rust removal operation can be collected by using the first negative pressure dust collection component and the second negative pressure dust collection component.

[0023] In some embodiments of this application, the battery weld rust removal and spraying equipment further includes a first cleaning device and a second cleaning device. Along the conveying direction of the conveying device, the first cleaning device and the second cleaning device are both located between the rust removal device and the first spraying device. The first cleaning device is used to clean the side weld in a horizontal position, and the second cleaning device is used to clean the end weld in a horizontal position.

[0024] By adopting the above technical solution, a first cleaning device and a second cleaning device are added between the rust removal device and the first spraying device to clean the side welds and end welds of the horizontally positioned battery cells, respectively, to remove residual impurities, provide a clean weld base for subsequent spraying operations, and improve the quality of the spraying operation.

[0025] In some embodiments of this application, the first cleaning device includes a laser cleaning component for cleaning the side weld; and / or, the second cleaning device includes a plasma cleaning component for cleaning the end weld.

[0026] By adopting the above technical solution, a laser cleaning component is used to clean the side welds, and a plasma cleaning component is used to clean the end welds. This approach is tailored to the structural characteristics of welds at different locations, further improving the cleaning effect and thus enhancing the adhesion of the coating applied subsequently.

[0027] In some embodiments of this application, the first cleaning device includes a third protective cover and a third negative pressure suction assembly, the third protective cover being disposed across the conveying device, and the laser cleaning assembly and at least a portion of the third negative pressure suction assembly being respectively installed inside the third protective cover; and / or, the second cleaning device includes a fourth protective cover and a fourth negative pressure suction assembly, the fourth protective cover being disposed across the conveying device, and the plasma cleaning assembly and at least a portion of the fourth negative pressure suction assembly being respectively installed inside the fourth protective cover.

[0028] By adopting the above technical solution, a more enclosed cleaning operation space can be formed by using the third and fourth protective covers, and the dust generated during the cleaning operation can be collected by using the third and fourth negative pressure dust collection components.

[0029] In some embodiments of this application, the first rotary lifting mechanism includes a lifting component and an end-pressing rotary component. The lifting component is located on one side of the conveying device along a first direction, and the end-pressing rotary component is located on the other side of the conveying device along the first direction. The lifting component is used to support one end of the battery cell on the clamping mechanism and drive the battery cell to rise and fall. The end-pressing rotary component is used to press down the other end of the battery cell and drive the battery cell to rotate on the lifting component. The first direction intersects the conveying direction of the conveying track and the arrangement direction of the clamping mechanism to the conveying track.

[0030] Using the above technical solution, the first rotating lifting mechanism is designed to include a lifting component and an end-pressure rotating component. The two components work together to stably lift and clamp the battery cells, thereby driving the battery cells to rotate.

[0031] In some embodiments of this application, the lifting assembly includes a first mounting frame, a first lifting member, and a lifting member. The first lifting member is mounted on the first mounting frame, and the lifting member is mounted on the first lifting member and moves up and down under the drive of the first lifting member. The lifting member has a limiting plate for limiting the battery cell on the side opposite to the end pressure rotation assembly.

[0032] By adopting the above technical solution, the lifting stroke of the lifting component is controlled by the first lifting component, and the battery cell is constrained by the limiting plate. This can effectively limit the displacement of the battery cell along the first direction and improve the accuracy of the working position of the battery cell.

[0033] In some embodiments of this application, the limiting plate is provided with at least one auxiliary rotary bearing, the auxiliary rotary bearing is used to abut against one end of the battery cell, and the end-pressing rotary assembly is used to press the other end of the battery cell.

[0034] By adopting the above technical solution, an auxiliary rotary bearing is set in the limiting plate. Through the cooperation between the auxiliary rotary bearing and the end of the battery cell, the rotational friction resistance of the battery cell can be reduced, making the battery cell rotate more smoothly and uniformly.

[0035] In some embodiments of this application, the lifting assembly further includes a second track and a first moving drive component mounted on the first mounting frame. The length direction of the second track is arranged along the first direction. The first lifting component is mounted on the second track. The first moving drive component is connected to the first lifting component and is used to drive the first lifting component to move along the first direction.

[0036] By adopting the above technical solution, the first lifting component and the lifting assembly can be moved along the first direction by the first moving drive component, so as to adapt to the operation requirements of the battery cell and improve the adjustability of the equipment.

[0037] In some embodiments of this application, the end-pressure rotation assembly includes a second mounting bracket, a second moving drive member, a second mounting member, a rotation drive member, and a clamping member. The second moving drive member is mounted on the second mounting bracket, and the second mounting member is connected to the second moving drive member. The second moving drive member is used to drive the second mounting member to move along the first direction. The rotation drive member and the clamping member are both located on the second mounting member. The rotation drive member and the clamping member are connected in a transmission manner. The clamping member is used to abut against the end of the battery cell and drive the battery cell to rotate around its own axis.

[0038] By adopting the above technical solution, the second moving drive component can drive the rotating drive component and the clamping component to move, so that the clamping component presses the end of the battery cell and drives it to rotate, thereby improving the uniformity of the spraying effect of the side weld of the battery cell.

[0039] In some embodiments of this application, the end-pressure rotation assembly further includes a second lifting member, which is mounted on the second mounting member, and the rotation drive member is mounted on the second lifting member. The second lifting member is used to drive the rotation drive member and the clamping member to move up and down.

[0040] By adopting the above technical solution, the working height of the rotating drive component and the clamping component can be adjusted by the second lifting component, so that the clamping component can be more accurately connected and clamped to the battery cell.

[0041] In some embodiments of this application, the conveying track is a magnetically levitated stator track, and the clamping mechanism is equipped with a magnetically levitated mover that cooperates with the magnetically levitated stator track.

[0042] By adopting the above technical solution, the conveying device is designed as a magnetic levitation structure, which improves the stability of the conveying process, reduces mechanical wear, and improves the positional accuracy of battery cells in various working areas.

[0043] Secondly, this application provides a battery production system, including the battery weld rust removal and spraying equipment described in any of the above technical solutions. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the structure of a battery weld rust removal and spraying equipment provided in some embodiments of this application; Figure 2 This is a schematic diagram of the structure of the flipping drive mechanism provided in some embodiments of this application; Figure 3 This is a schematic diagram of the clamping mechanism provided in some embodiments of this application; Figure 4 This is a schematic diagram of the structure of the clamping mechanism and the flipping drive mechanism provided in some embodiments of this application; Figure 5 This is a schematic diagram of the structure of a first rust removal device provided in some embodiments of this application; Figure 6 This is a schematic diagram of the structure of a second rust removal device provided in some embodiments of this application; Figure 7 A schematic diagram of the structure of the first rotary lifting mechanism provided in some embodiments of this application; Figure 8 This is a schematic diagram of the structure of a first cleaning device provided in some embodiments of this application; Figure 9 This is a schematic diagram of the structure of the second cleaning device provided in some embodiments of this application; Figure 10 This is a schematic diagram of the structure of a first spraying apparatus provided in some embodiments of this application; Figure 11 This is a schematic diagram of the structure of a second spraying apparatus provided in some embodiments of this application.

[0046] The reference numerals in the accompanying drawings for the specific embodiments are as follows: 100. Battery weld rust removal and spraying equipment; 10. Conveying device; 11. Conveying track; 12. Clamping mechanism; 121. Clamping assembly; 122. First mounting component; 123. Transmission assembly; 1231. Rack; 1232. Gear; 1233. Rotating shaft; 1234. Shaft bracket; 124. Transmission wheel; 125. Wheel frame; 126. Traveling assembly; 13. Tilting drive mechanism; 131. First track; 1311. First section; 1312. Second section; 1313. Third section; 132. Track frame; 20. First rust removal device; 21. First laser rust removal component; 22. Second rotary lifting mechanism; 23. First protective cover; 24. First negative pressure dust collection component; 30. Second rust removal device; 31. Second laser rust removal component; 32. Second protective cover; 33. Second negative pressure dust collection component; 40. First cleaning device; 41. Laser cleaning component; 42. Third protective cover; 43. Third negative pressure dust suction component; 44. Third rotary lifting mechanism; 50. Second cleaning device; 51. Plasma cleaning assembly; 52. Fourth protective cover; 53. Fourth negative pressure dust collection assembly; 60. First spraying device; 61. First rotary lifting mechanism; 611. Lifting assembly; 6111. First mounting bracket; 6112. First lifting component; 6113. Lifting component; 6114. Second track; 6115. First moving drive component; 6116. Limiting plate; 6117. Auxiliary rotary bearing; 612. End-pressure rotary assembly; 6121. Second mounting bracket; 6122. Second moving drive component; 6123. Second mounting component; 6124. Rotary drive component; 6125. Clamping component; 6126. Second lifting component; 62. First spraying mechanism; 63. Fifth protective cover; 70. Second spraying device; 71. Second spraying mechanism; 72. Sixth protective cover; 80. Curing device; 200. Battery cell; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "including," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0049] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0052] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0053] In this application, "multiple" means two or more (including two).

[0054] The embodiments of this application will now be described in detail.

[0055] During the production of cylindrical battery cells, the connection between the battery cell end cap and the casing forms annular side welds and end welds. Rust removal, cleaning, and insulating spraying are required for the side welds and end welds to remove the oxide layer, metal debris, and impurities generated during weld processing, and to form a uniform and dense protective coating on the weld surface to reduce quality problems such as weld corrosion, leakage, and insulation failure during the use of the battery cells.

[0056] The existing rust removal, cleaning and spraying processes usually use a vertical conveyor system with a turret and a cup to complete the assembly line operation. That is, the battery cells are in a vertical state throughout the entire rust removal, cleaning and spraying process. At this time, the axial or length direction of the battery cells is set in a vertical or approximately vertical direction.

[0057] This type of conveying, rust removal, and spraying equipment has several drawbacks: First, when the individual tanks are placed vertically, the center of gravity is too high, making them prone to swaying and shifting during start-up, stop-start, station switching, and rotation operations. This results in poor overall positioning accuracy, making it difficult to meet the requirements of high-precision weld processing. Second, in the vertical position, the end-face welds face upwards, causing metal debris from rust removal to directly accumulate inside the weld seams, making thorough cleaning difficult. Finally, the single vertical posture cannot adapt to diverse process requirements. For example, it cannot spray side welds and end-face welds in different postures, and the sprayed liquid is easily affected by gravity, resulting in drips and uneven thickness, affecting the spraying quality.

[0058] Therefore, optimizing and improving the positioning accuracy of battery cells during rust removal, cleaning, and spraying processes, as well as improving the effects of rust removal and spraying processes, is an important issue in battery production.

[0059] In view of this, this application provides a technical solution that configures the clamping mechanism of the conveying device to allow the battery cell to flip between a horizontal and an vertical state, and performs rust removal and side weld spraying on the horizontal state of the battery cell, and performs end weld spraying on the vertical state of the battery cell, so as to solve the above-mentioned technical problems.

[0060] The following is in conjunction with the appendix Figure 1-11 The battery weld rust removal and spraying equipment 100 provided in this embodiment will be introduced.

[0061] Combined with appendix Figure 1 As shown, this embodiment provides a battery weld rust removal and spraying equipment 100, including a conveying device 10, a rust removal device, a first spraying device 60, and a second spraying device 70; the conveying device 10 includes a conveying track 11 and a clamping mechanism 12 located above the conveying track 11, the clamping mechanism 12 is used to clamp a battery cell 200 and can move along the conveying track 11, the clamping mechanism 12 is configured to allow the battery cell 200 to flip between a horizontal state and an upright state; the rust removal device is disposed on the conveying path of the conveying device 10 and is used to perform rust removal operations on the weld of the end cap of the battery cell 200 in a horizontal state; the second spraying device 70; the third spraying device 70; the fourth spraying device 70; the fifth spraying device 70; the sixth spraying device 70; the seventh spraying device 70; the seventh spraying device 70; the eighth spraying device 70; the seventh spraying device 70; the eighth spraying device 70; the seventh spraying device 70; the eighth spraying device 70; the ninth ... A spraying device 60 is disposed on the conveying path of the conveying device 10, including a first rotary lifting mechanism 61 and a first spraying mechanism 62. The first rotary lifting mechanism 61 is used to lift the battery cell 200 on the clamping mechanism 12 and drive the battery cell 200 to rotate around its own axis. The first spraying mechanism 62 is used to spray the side weld of the end cap of the battery cell 200 in a horizontal and rotating state. A second spraying device 70 is disposed on the conveying path of the conveying device 10, including a second spraying mechanism 71. The second spraying mechanism 71 is used to spray the end face weld of the battery cell 200 in an upright state.

[0062] In some embodiments, the first direction X in the figure is a horizontal direction, the second direction Y is a horizontal direction that intersects (is perpendicular to) the first direction X, and the third direction Z is a vertical direction.

[0063] The conveying device 10 can be a magnetic levitation conveying structure or a belt conveying structure, etc. The specific conveying form is given below.

[0064] The conveying device 10 forms a closed-loop conveying line. The conveying device 10 includes a conveying track 11 and a clamping mechanism 12 located above the conveying track 11. The shape of the conveying track 11 can be the racetrack shape shown in the figure, or other closed-loop structures.

[0065] The clamping mechanism 12 is used to clamp the battery cell 200 and move on the conveying track 11. There can be one or more clamping mechanisms 12, and each clamping mechanism 12 clamps one or more battery cells 200. The clamped battery cell 200 can be a cylindrical battery cell 200. The specific structural form of the battery cell 200 will not be described in detail in this embodiment.

[0066] The clamping mechanism 12 is configured to allow the battery cell 200 to rotate between a horizontal and an vertical state. This means that the clamping mechanism 12, under the action of external force or its own structure, allows the battery cell 200 to switch between the two states. Here, "horizontal state" means that the battery cell 200 is set horizontally in the length direction or axial direction, and correspondingly, "vertical state" means that the battery cell 200 is set vertically in the length direction or axial direction.

[0067] The rust removal device is located on the conveying path of the conveying device 10. This means that the rust removal device is arranged within the conveying trajectory of the battery cell 200 from feeding to discharging. The same understanding applies to other devices located on the conveying path of the conveying device 10.

[0068] The rust removal device is used to remove rust from the welds of the end caps of the battery cell 200 in a horizontal position. Specifically, there can be one or two rust removal devices. For example, one rust removal device can be used to remove rust from the side welds and end welds of the end caps of the battery cell 200. In this case, the laser nozzle of the rust removal device is required to be able to adjust its position to match the side welds and end welds. Alternatively, there can be two or more laser nozzles to remove rust from the side welds and end welds respectively.

[0069] Of course, when there are two rust removal devices, one is used for rust removal of the side welds and the other is used for rust removal of the end welds. The specific structural form of the rust removal devices is given below.

[0070] The first spraying device 60 includes a first rotary lifting mechanism 61 and a first spraying mechanism 62. The first rotary lifting mechanism 61 is used to lift the battery cell 200 on the clamping mechanism 12, at which time the battery cell 200 is released from the clamping mechanism 12. Then, the first rotary lifting mechanism 61 drives the battery cell 200 to rotate around its own axis, and the first spraying mechanism 62 sprays the side weld of the end cap of the battery cell 200, which is in a horizontal and rotating state, with a spraying operation.

[0071] The second spraying device 70 is disposed on the conveying path of the conveying device 10, and includes a second spraying mechanism 71. The second spraying mechanism 71 is used to spray the end face weld of the battery cell 200 in the vertical state. The first direction X intersects the conveying direction of the conveying track 11 and intersects the arrangement direction of the clamping mechanism 12 to the conveying track 11.

[0072] The above structural design has at least the following advantages: First, the battery cell 200 is in a horizontal position during rust removal and side weld spraying. Compared with the existing vertical conveying state, the center of gravity is lower and it is less prone to shaking or tilting, thus having better conveying and positioning accuracy.

[0073] Furthermore, when removing rust from the end face welds of the horizontally positioned battery cell 200, it is easier for metal debris to fall off, reducing the possibility of depositing on the end face welds and facilitating rust removal.

[0074] Furthermore, when the first rotating lifting mechanism 61 drives the battery cell 200 to rotate to perform spraying operations on the side weld, the spraying liquid can flow evenly to the circumference of the battery cell 200, improving the overall spraying effect of the side annular weld.

[0075] Furthermore, after completing rust removal and side spraying, the battery cell 200 is flipped to an upright position for end-face weld spraying. The spraying liquid is more likely to remain on the end-face weld, improving the spraying effect of the end-face weld and significantly increasing the product production yield.

[0076] Combined with appendix Figure 10 and attached Figure 11 As shown, the first spraying mechanism 62 in this embodiment can also be a horizontal structure, that is, the first spraying mechanism 62 is installed inside the fifth protective cover 63 and located on one side of the conveying device 10 along the first direction X, and it is arranged with the conveyed battery cell 200 along the first direction X, so that the coating sprayed by the first spraying mechanism 62 can reach the side weld of the battery cell 200.

[0077] The first spraying mechanism 62 includes a nozzle or spray gun that can move at multiple angles or remain stationary. It can be used to spray a protective coating, which may be a UV-cured paint.

[0078] Similarly, the structure of the second spraying mechanism 71 can also be the same, but the nozzle or spray gun of the second spraying mechanism 71 should be located above the conveying device 10 so as to perform spraying operation on the end face weld at the top after the battery cell 200 is flipped.

[0079] The second spraying device 70 includes a sixth protective cover 72, and a second spraying mechanism 71 is installed inside the sixth protective cover 72 and located on the upper part of the sixth protective cover 72.

[0080] In some examples, the conveying device 10 may optionally include a flipping drive mechanism 13 located downstream of the first spraying device 60 along the conveying direction of the conveying device 10. The flipping drive mechanism 13 is used to drive the battery cell 200 to flip between a horizontal and an vertical state.

[0081] The flipping drive mechanism 13 is located downstream of the first spraying device 60, meaning that the material first passes through the first spraying device 60 to complete the spraying process before reaching the flipping drive mechanism 13.

[0082] The flipping drive mechanism 13 can be any structure that can drive the battery cell 200 to flip between a horizontal and a vertical state. For example, it can be a structure that requires an additional power source, such as a robotic arm.

[0083] A flipping drive mechanism 13 is provided between the first spraying device 60 and the second spraying device 70, which can automatically switch the battery cell 200 from a horizontal state to a vertical state, thus improving the side spraying and end face spraying processes.

[0084] Specifically, after the side weld layer of the battery cell 200 is sprayed, but before it enters the second spraying device 70, the flipping drive mechanism 13 drives the battery cell 200 to flip from a horizontal state to an upright state, so that the end face of the battery cell 200 is set upward, reducing the possibility that the sprayed liquid will flow directly away from the end face when the end face weld is sprayed.

[0085] Combined with appendix Figure 2-4 As shown, in some examples, optionally, the flipping drive mechanism 13 includes a first track 131, and the clamping mechanism 12 includes a clamping assembly 121, a first mounting member 122, a transmission assembly 123, and a transmission wheel 124. The clamping assembly 121 is mounted on the first mounting member 122 and is used to clamp the battery cell 200. The first mounting member 122 is mounted on the transmission assembly 123. The transmission wheel 124 is connected to the transmission assembly 123. When the transmission wheel 124 moves to the flipping drive mechanism 13, it abuts against the first track 131. The first track 131 is configured to drive the transmission wheel 124 to move linearly in a first direction X. The transmission assembly 123 converts the linear motion of the transmission wheel 124 into the rotation of the first mounting member 122 around a first circumferential direction.

[0086] The first track 131 is installed on the track frame 132. The first track 131 can be located above the conveying device 10 or on one side of the conveying device 10 along the first direction X. The first track 131 is located downstream of the first spraying device 60 and can pass through the second spraying device 70.

[0087] In order to enable the clamping mechanism 12 to allow the battery cell 200 to be flipped, the clamping mechanism 12 in this embodiment is designed to include a clamping component 121, a first mounting component 122, a transmission component 123 and a transmission wheel 124.

[0088] The clamping component 121 is used to clamp the battery cell 200. The number of clamping components 121 on each clamping mechanism 12 can be one or more (e.g., the two in the figure). The clamping component 121 can clamp or release the battery cell 200.

[0089] For example, the clamping component 121 of this embodiment includes two grippers that can move closer and further apart along the first direction X, and the driving method of the two grippers is not limited. Any clamping and releasing mechanism that can automatically perform clamping and releasing can be used as the clamping component 121 of this embodiment.

[0090] The first mounting component 122 can be a plate-shaped component, a block-shaped component, etc., and its main function is to install the clamping assembly 121.

[0091] The transmission assembly 123 is a structure that can convert linear motion into rotational motion of the first mounting member 122. The transmission assembly 123 can take many forms, such as a crank-slider, a lead screw and nut, or the gear 1232 and rack 1231 described below.

[0092] The transmission wheel 124 is located on the upper side of the entire clamping mechanism 12 along the first direction X and is positioned facing the first track 131.

[0093] By cooperating with the first track 131, the transmission wheel 124, and the transmission assembly 123, the linear motion of the transmission wheel 124 is converted into the circumferential rotation of the first mounting component 122 through a mechanical structure. The battery cell 200 can be flipped without additional power components, and the structure is simple and reliable.

[0094] In addition, the clamping mechanism 12 also includes a traveling assembly 126, a transmission assembly 123 mounted on the traveling assembly 126, the traveling assembly 126 cooperating with the conveying track 11 and being able to move along the conveying track 11.

[0095] In some examples, the first track 131 includes a first segment 1311, a second segment 1312, and a third segment 1313 sequentially along the direction from the first spraying device 60 to the second spraying device 70. The first segment 1311 is located upstream of the second spraying device 70, the second segment 1312 passes at least partially through the second spraying device 70, and the third segment 1313 is located downstream of the second spraying device 70. Along the first direction X, the width of the first segment 1311 gradually increases continuously from the starting end to the second segment 1312, the width of the second segment 1312 remains constant, and the width of the third segment 1313 gradually decreases continuously from the second segment 1312 to the end of the first track 131. The linear motion of the drive wheel 124 on the third segment 1313 drives the first mounting member 122 to rotate around the second circumferential direction, which is opposite to the first circumferential direction.

[0096] The length of the first track 131 is set along the second direction Y in the figure, and the width of the first track 131 is set along the first direction X in the figure. The first track 131 is located downstream of the first spraying device 60 and passes through the second spraying device 70.

[0097] The first track 131 adopts a three-segment gradient structure. When the first segment 1311 is engaged with the transmission wheel 124, its width gradually increases, which can drive the transmission wheel 124 to move along the first direction X towards the clamping assembly 121. The transmission wheel 124 then drives the transmission assembly 123 to move, so as to realize the battery cell 200 switching from a horizontal state to a vertical state.

[0098] During the side weld spraying process, the second section 1312 cooperates with the drive wheel 124. Since the width of the second section 1312 is constant, the second section 1312 can maintain the stability of the battery cell 200 in the vertical position.

[0099] After the second spraying device 70 completes the spraying, the clamping mechanism 12 continues to move to the third section 1313. Since the width of the third section 1313 gradually decreases along the conveying direction, it can drive the transmission wheel 124 to move away from the clamping assembly 121 along the first direction X, thereby driving the transmission assembly 123 to perform a reset movement, so that the battery cell 200 is reset to a horizontal position, which facilitates subsequent curing, testing and unloading steps.

[0100] In some examples, the transmission assembly 123 may optionally include a rack 1231, a gear 1232, a rotating shaft 1233, and a shaft holder 1234. The transmission wheel 124 is mounted on the rack 1231, the rack 1231 meshes with the gear 1232, the gear 1232 is coaxially connected to the rotating shaft 1233 and rotates synchronously, the rotating shaft 1233 is mounted on the shaft holder 1234, and the first mounting member 122 is mounted on the rotating shaft 1233 and rotates synchronously with the rotating shaft 1233.

[0101] The drive wheel 124 is mounted on the wheel frame 125, and the wheel frame 125 is mounted on the rack 1231. The axle frame 1234 is mounted on the travel assembly 126, and the rack 1231 is mounted on the travel assembly 126 in a sliding manner along the first direction X, and is located between the two axle frames 1234.

[0102] When the transmission wheel 124 moves along the first direction X, the rack 1231 rotates synchronously, thereby driving the gear 1232 meshing with it to rotate.

[0103] Specifically, when the transmission wheel 124 engages with the first section 1311, the rack 1231 moves synchronously with the transmission wheel 124 along the first direction X toward the clamping assembly 121, driving the gear 1232 to rotate around the first circumferential direction on the rotating shaft 1233, thereby driving the battery cell 200 to switch from a horizontal state to an upright state.

[0104] When the drive wheel 124 engages with the second section 1312, the width of the second section 1312 is constant, thus maintaining the stability of the battery cell 200 in an upright position.

[0105] When the transmission wheel 124 engages with the third section 1313, the transmission wheel 124 and the rack 1231 move away from the clamping assembly 121 along the first direction X, thereby driving the gear 1232 to rotate around the second circumferential direction. The second circumferential direction is opposite to the first circumferential direction, so that the battery cell 200 is reset to the horizontal position.

[0106] In this embodiment, the transmission component 123 is designed as a meshing transmission structure including gear 1232 and rack 1231. This structure is not only simple, but also can accurately convert linear motion into rotational motion, thereby improving the accuracy of the flipping angle of the clamping mechanism 12.

[0107] Combined with appendix Figure 1 , 5 As shown in Figure 6, in some examples, optionally, there are two rust removal devices, namely a first rust removal device 20 and a second rust removal device 30. The first rust removal device 20 includes a first laser rust removal component 21, which is located on one side of the conveying track 11 along the first direction X, and is used to remove rust from the side weld. And / or, the second rust removal device 30 includes a second laser rust removal component 31, which is located on one side of the conveying track 11 along the first direction X, and is used to remove rust from the end face weld.

[0108] The positional relationship between the first rust removal device 20 and the second rust removal device 30 is not limited. For example, the first rust removal device 20 can be located upstream of the second rust removal device 30, or the first rust removal device 20 can be located downstream of the second rust removal device 30.

[0109] Upstream and downstream refer to the positional relationship between the two along the conveying direction. The clamping mechanism 12 first conveys to the upstream position and then to the downstream position.

[0110] Compared to using only one rust removal device to remove rust from the end face and side welds separately, setting up two sets of rust removal devices to clean the end face welds and side welds separately can effectively improve the overall cleanliness of the welds.

[0111] In some examples, optionally, the first negative pressure dust collection assembly 24 is mounted on top of the first protective cover 23 and is configured to be located directly above the delivered battery cell 200, and the first laser rust removal assembly 21 is located on one side of the conveying device 10 along the first direction X and is configured to be directly opposite the side wall of the delivered battery cell 200.

[0112] Since the battery cell 200 is in a horizontal position when removing rust from the side weld, the first laser rust removal component 21 can also be designed as a horizontal structure.

[0113] Specifically, the first laser rust removal component 21 is located on one side of the conveying device 10 along the first direction X, and the laser emitted by it can be directed at the side wall of the conveyed battery cell 200. By simply rotating the battery cell 200, the side weld of the end cap of the battery cell 200 can be rusted in all directions.

[0114] In this rust removal method where the first laser rust removal component 21 is positioned directly above the battery cell 200, the first laser rust removal component 21 is also designed as a horizontal structure. The laser beam path will not be interfered with by the structure at the top of the battery cell 200, and the rust removal spot can better fit the side weld. Moreover, it can reduce the vertical space occupied by the whole machine and will not interfere with the first negative pressure dust collection component 24 located above the battery cell 200, which is conducive to the first negative pressure dust collection component 24 performing rust removal and dust collection.

[0115] Regarding the second laser rust removal component 31 and the second negative pressure dust collection component 33, the second negative pressure dust collection component 33 can be located on top of the second protective cover 32. The second laser rust removal component 31 can be located above the conveying device 10 and can be raised and lowered vertically. The laser emission direction of the second laser rust removal component 31 is set along the second direction Y. When the battery cell 200 is received, the second laser rust removal component 31 descends to be level with the battery cell 200 and faces the end face weld of the battery cell 200. Through the movement of the second laser rust removal component 31, the end face weld is directly derusted, and the battery cell 200 can remain stationary during this process.

[0116] In some examples, the first rust removal device 20 may optionally include a second rotary lifting mechanism 22, which is used to lift the battery cell 200 on the clamping mechanism 12 and drive the battery cell 200 to rotate around its own axis. The first laser rust removal component 21 is used to remove rust from the rotating side weld.

[0117] The structure of the second rotary lifting mechanism 22 is the same as that of the first rotary lifting mechanism 61, so its structure can be referred to the first rotary lifting mechanism 61. The function of the second rotary lifting mechanism 22 is to drive the battery cell 200 to detach from the clamping assembly 121, then drive the battery cell 200 to rotate around its own axis, and then place the battery cell 200 back onto the clamping assembly 121.

[0118] The first rust removal device 20 is designed to have a second rotating lifting mechanism 22. The second rotating lifting mechanism 22 is used to lift and drive the battery cell 200 to rotate around its own axis, so that the first laser rust removal component 21 can perform 360° dynamic rust removal on the side weld of the battery cell 200, thereby improving the rust removal effect.

[0119] In some examples, the first rust removal device 20 may optionally include a first protective cover 23 and a first negative pressure dust collection assembly 24, the first protective cover 23 being disposed across the conveying device 10, the first laser rust removal assembly 21 and at least a portion of the first negative pressure dust collection assembly 24 being respectively installed inside the first protective cover 23; and / or, the second rust removal device 30 may also include a second protective cover 32 and a second negative pressure dust collection assembly 33, the second protective cover 32 being disposed across the conveying device 10, the second laser rust removal assembly 31 and at least a portion of the second negative pressure dust collection assembly 33 being respectively installed inside the second protective cover 32.

[0120] The first protective cover 23 spans the conveying device 10, meaning that the first protective cover 23 has an opening through which the conveying device 10 passes. Similarly, the structures of the other protective covers can also be like this.

[0121] The first laser rust removal component 21 is installed inside the first protective cover 23, which provides a mounting base for it. The first negative pressure dust collection component 24 is installed in the first protective cover 23 and is used to absorb the debris and powder generated during the rust removal process of the first laser rust removal component 21.

[0122] Similarly, the second protective cover 32 and the second negative pressure dust collection component 33 also serve the same purpose, which will not be described in detail in this embodiment.

[0123] In this embodiment, the first protective cover 23 and the second protective cover 32 can form a more enclosed rust removal working space, and the first negative pressure dust suction component 24 and the second negative pressure dust suction component 33 can collect the debris and dust generated during the rust removal operation.

[0124] Combined with appendix Figure 1 , 8 As shown in Figure 9, in some examples, the battery weld rust removal and spraying equipment 100 may optionally include a first cleaning device 40 and a second cleaning device 50. Along the conveying direction of the conveying device 10, both the first cleaning device 40 and the second cleaning device 50 are located between the rust removal device and the first spraying device 60. The first cleaning device 40 is used to clean the side weld in a horizontal position, and the second cleaning device 50 is used to clean the end weld in a horizontal position.

[0125] There are two possible positions of the first cleaning device 40 and the second cleaning device 50: one is that the first cleaning device 40 is located upstream of the second cleaning device 50, and the other is that the first cleaning device 40 is located downstream of the second cleaning device 50.

[0126] A first cleaning device 40 and a second cleaning device 50 are added between the rust removal device and the first spraying device 60 to clean the side welds and end welds of the horizontally positioned battery cell 200, respectively, to remove residual impurities, provide a clean weld base for subsequent spraying operations, and improve the quality of the spraying operation.

[0127] In some examples, the first cleaning device 40 may optionally include a laser cleaning assembly 41 for cleaning side welds; and / or the second cleaning device 50 may include a plasma cleaning assembly 51 for cleaning end welds.

[0128] The laser cleaning component 41 has a completely different function and purpose from the first laser rust removal component 21 mentioned above, and the laser process parameters of the two are quite different.

[0129] Specifically, the first laser rust removal component 21 uses a high-power, high-pulse laser to peel off the thick oxide scale, welding slag, and rust layer from the weld. The laser cleaning component 41 uses a low-power laser to remove only the residual dust and thin oxide film after rust removal, performing fine cleaning of the weld.

[0130] Using plasma cleaning component 51 to clean the end face weld can reduce damage to the thin end face of the battery end cover, and can also better clean impurities and oxide layers from the end face weld.

[0131] Laser cleaning component 41 is used to clean the side welds, and plasma cleaning component 51 is used to clean the end welds. The cleaning effect is further improved by specifically matching the structural characteristics of welds in different positions, thereby enhancing the adhesion of the coatings that are subsequently sprayed.

[0132] In some examples, optionally, the first cleaning device 40 includes a third protective cover 42 and a third negative pressure suction assembly 43, the third protective cover 42 being disposed across the conveying device 10, and the laser cleaning assembly 41 and at least a portion of the third negative pressure suction assembly 43 being respectively installed within the third protective cover 42; and / or, the second cleaning device 50 includes a fourth protective cover 52 and a fourth negative pressure suction assembly 53, the fourth protective cover 52 being disposed across the conveying device 10, and the plasma cleaning assembly 51 and at least a portion of the fourth negative pressure suction assembly 53 being respectively installed within the fourth protective cover 52.

[0133] The structure and material of the third protective cover 42 and the fourth protective cover 52 are the same as or similar to those of the first protective cover 23. The structure of the third negative pressure suction assembly 43 and the fourth negative pressure suction assembly 53 is the same as or similar to that of the first negative pressure suction assembly 24 and the second negative pressure suction assembly 33. For example, all four may include a connected negative pressure generating element and a negative pressure suction pipe.

[0134] The third protective cover 42 and the fourth protective cover 52 can be used to form a more enclosed cleaning operation space, and the third negative pressure dust collection component 43 and the fourth negative pressure dust collection component 53 can be used to collect the dust generated during the cleaning operation.

[0135] When cleaning the battery cell 200 after rust removal, the battery cell 200 is also in a horizontal position. Therefore, the laser cleaning component 41 in this embodiment can also be designed as a horizontal type.

[0136] Specifically, the laser cleaning component 41 can be designed to be located on one side of the conveying device 10 along the first direction X, and the laser emitted by it can be directed at the side wall of the conveyed battery cell 200. By simply rotating the battery cell 200, the side weld of the end cap of the battery cell 200 can be cleaned in all directions.

[0137] The rotation of the battery cell 200 can be achieved by adding a third lifting and rotating mechanism within the first cleaning device 40. Since the structure of the third rotating lifting mechanism 44 is the same as that of the first rotating lifting mechanism 61, this embodiment only describes the specific structure of the first rotating lifting mechanism 61.

[0138] In addition, the plasma cleaning component 51 in this embodiment may be located above or to one side of the conveying device 10, and it may be able to perform at least one of the following three functions: lifting, rotating, and horizontal displacement, in order to clean the end face weld.

[0139] Combined with appendix Figure 7As shown, in some examples, optionally, the first rotary lifting mechanism 61 includes a lifting assembly 611 and an end-pressing rotary assembly 612. The lifting assembly 611 is located on one side of the conveying device 10 along the first direction X, and the end-pressing rotary assembly 612 is located on the other side of the conveying device 10 along the first direction X. The lifting assembly 611 is used to support one end of the battery cell 200 on the clamping mechanism 12 and drive the battery cell 200 to rise and fall. The end-pressing rotary assembly 612 is used to press down the other end of the battery cell 200 and drive the battery cell 200 to rotate on the lifting assembly 611.

[0140] One of the lifting assembly 611 and the end-pressure rotating assembly 612 is located on one side of the conveying device 10 along the first direction X, and the other is located on the other side of the conveying device 10 along the first direction X.

[0141] When it is necessary to rotate the battery cell 200 around its own axis, the lifting component 611 and the spinning rotation component work together. The two work together to clamp and limit the battery cell 200 and lift it. Then, the spinning rotation component drives the battery cell 200 to rotate. The rotation can be uniform, so that the laser can evenly irradiate the side weld.

[0142] In some examples, optionally, the lifting assembly 611 includes a first mounting bracket 6111, a first lifting member 6112, and a lifting member 6113. The first lifting member 6112 is mounted on the first mounting bracket 6111, and the lifting member 6113 is mounted on the first lifting member 6112 and moves up and down under the drive of the first lifting member 6112. The lifting member 6113 has a limiting plate 6116 for limiting the battery cell 200 on one side away from the rotating assembly 612.

[0143] The first mounting frame 6111 can be any frame structure, and the first lifting component 6112 can be a cylinder, hydraulic cylinder, or screw jack, etc., that can be lifted.

[0144] The lifting component 6113 can be a plate or a block. A limiting plate 6116 is provided on one side of the lifting component 6113 away from the rotating assembly 612. The limiting plate 6116 can intersect or even be perpendicular to the lifting component 6113.

[0145] After the lifting component 6113 lifts the battery cell 200, the spinning and rotating assembly presses the battery cell 200 onto the limiting plate 6116, and then drives the battery cell 200 to rotate.

[0146] In this embodiment, the lifting stroke of the lifting component 6113 is controlled by the first lifting component 6112, and the battery cell 200 is constrained by the limiting plate 6116. This can effectively limit the displacement of the battery cell 200 along the first direction X and improve the accuracy of the working position of the battery cell 200.

[0147] In some examples, the limiting plate 6116 is optionally provided with at least one auxiliary rotary bearing 6117, which is used to abut against one end of the battery cell 200, and the end pressure rotation assembly 612 is used to press the other end of the battery cell 200.

[0148] One of the inner and outer rings of the auxiliary rotary bearing 6117 protrudes from the other and can rotate on the other. The end-pressure rotary assembly 612 presses the battery cell 200 against the protruding and rotatable inner or outer ring.

[0149] When the end pressure rotating assembly 612 drives the battery cell 200 to rotate, the auxiliary rotating bearing 6117 cooperates with the end of the battery cell 200 to reduce the rotational friction resistance of the battery cell 200, making the rotation of the battery cell 200 smoother and more uniform.

[0150] In some examples, the lifting assembly 611 may optionally include a second track 6114 and a first moving drive 6115 mounted on the first mounting bracket 6111. The length direction of the second track 6114 is arranged along the first direction X. The first lifting member 6112 is mounted on the second track 6114. The first moving drive 6115 is connected to the first lifting member 6112 and is used to drive the first lifting member 6112 to move along the first direction X.

[0151] The first lifting component 6112 is slidably connected to the second track 6114 and can move along the first direction X on the second track 6114.

[0152] The first moving drive component 6115 can be a linear reciprocating motion structure such as a cylinder or an electric cylinder. The first moving drive component 6115 is mounted on the first mounting bracket 6111 and connected to the first lifting component 6112.

[0153] The first moving drive component 6115 can drive the first lifting component 6112 and the lifting assembly 611 to move along the first direction X, so as to adapt to the operation requirements of the battery cell 200 and improve the adjustability of the equipment.

[0154] In some examples, optionally, the end-pressure rotation assembly 612 includes a second mounting bracket 6121, a second moving drive member 6122, a second mounting member 6123, a rotation drive member 6124, and a clamping member 6125. The second moving drive member 6122 is mounted on the second mounting bracket 6121, and the second mounting member 6123 is connected to the second moving drive member 6122. The second moving drive member 6122 is used to drive the second mounting member 6123 to move along the first direction X. The rotation drive member 6124 and the clamping member 6125 are both located on the second mounting member 6123. The rotation drive member 6124 is drive-connected to the clamping member 6125. The clamping member 6125 is used to abut against the end of the battery cell 200 and drive the battery cell 200 to rotate around its own axis.

[0155] The structure of the second mounting bracket 6121 is not limited; it can be any type of frame structure. The second mounting bracket 6121 serves as the mounting base for other components of the end-pressure rotating assembly 612.

[0156] The second moving drive component 6122 can be a linear reciprocating motion structure such as a cylinder or an electric cylinder. The second mounting component 6123 is slidably connected to the second mounting bracket 6121 and can move along the first direction X on the second mounting bracket 6121.

[0157] A rotary drive 6124 is mounted on a second mounting member 6123. The rotary drive 6124 can be a structure capable of outputting torque, such as a motor. A clamping member 6125 is mounted on the rotary drive 6124 and rotates under the drive of the rotary drive 6124. In some embodiments, a gearbox can be provided between the rotary drive 6124 and the clamping member 6125 to adjust the rotational speed of the clamping member 6125.

[0158] When it is necessary to rotate the battery cell 200, the second moving drive 6122 can first drive the rotating drive 6124 and the clamping member 6125 to move, so that the clamping member 6125 presses the end of the battery cell 200. Then the rotating drive 6124 drives it to rotate, which improves the uniformity of the spraying effect of the side weld of the battery cell 200.

[0159] In some examples, the end-pressure rotation assembly 612 may optionally include a second lifting member 6126, which is mounted on the second mounting member 6123, and a rotation drive member 6124 is mounted on the second lifting member 6126. The second lifting member 6126 is used to drive the rotation drive member 6124 and the clamping member 6125 to move up and down.

[0160] The second lifting component 6126 can be a cylinder, hydraulic cylinder, or screw jack, etc., which are structures capable of lifting. This embodiment will not list them in detail.

[0161] The working height of the rotating drive 6124 and the clamping member 6125 can be adjusted by using the second lifting member 6126, so that the clamping member 6125 can be more accurately aligned with and clamp the battery cell 200.

[0162] In some examples, the transport track 11 is optionally a magnetically levitated stator track, and the clamping mechanism 12 is configured with a magnetically levitated mover that cooperates with the magnetically levitated stator track.

[0163] When the conveying track 11 is a magnetically levitated stator track, the aforementioned walking component 126 of the clamping mechanism 12 is a magnetically levitated mover.

[0164] The magnetic levitation stator track has an electromagnetic coil array built in, which generates a traveling wave magnetic field when energized. This magnetic field interacts with the permanent magnet inside the magnetic levitation mover, driving the clamping mechanism 12 to move along the track with non-contact electromagnetic force, thus realizing frictionless transport of the battery cell 200.

[0165] Compared to traditional conveyor structures such as belts, chains, and rollers, the magnetic levitation conveyor structure improves the stability of the conveying process, reduces mechanical wear, and improves the positional accuracy of the battery cells 200 in various working areas.

[0166] In addition to the above-mentioned devices, the battery weld rust removal and spraying equipment 100 of this embodiment also includes a control device (not shown in the figure) and a curing device 80. The control device is electrically connected to the above-mentioned conveying device 10, first rust removal device 20, second rust removal device 30, first cleaning device 40, second cleaning device 50, first spraying device 60, second spraying device 70 and curing device 80, and controls the opening and closing of the above-mentioned devices.

[0167] The curing device 80 is located downstream of the second spraying device 70. After the end face weld is sprayed, the battery cell 200 enters the curing device 80 for curing.

[0168] Of course, in addition to the above, the battery weld rust removal and spraying equipment 100 may also include existing structures such as a feeding device, a discharging device, and various testing devices for battery cells 200, which will not be described in detail in this embodiment.

[0169] Secondly, this application provides a battery production system, including the aforementioned battery weld rust removal and spraying equipment 100.

[0170] The above description is merely an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below.

[0171] Combined with appendix Figure 1-11As shown, this application embodiment provides a battery weld rust removal and spraying equipment 100, including a conveying device 10, a rust removal device, a first spraying device 60, and a second spraying device 70; the conveying device 10 includes a conveying track 11 and a clamping mechanism 12 located above the conveying track 11, the clamping mechanism 12 is used to clamp a battery cell 200 and can move along the conveying track 11, the clamping mechanism 12 is configured to allow the battery cell 200 to flip between a horizontal state and an upright state; the rust removal device is disposed on the conveying path of the conveying device 10 and is used to perform rust removal operations on the weld of the end cap of the battery cell 200 in the horizontal state; The first spraying device 60 is disposed on the conveying path of the conveying device 10, and includes a first rotary lifting mechanism 61 and a first spraying mechanism 62. The first rotary lifting mechanism 61 is used to lift the battery cell 200 on the clamping mechanism 12 and drive the battery cell 200 to rotate around its own axis. The first spraying mechanism 62 is used to spray the side weld of the end cap of the battery cell 200 in a horizontal and rotating state. The second spraying device 70 is disposed on the conveying path of the conveying device 10, and includes a second spraying mechanism 71. The second spraying mechanism 71 is used to spray the end weld of the battery cell 200 in an upright state. The conveying device 10 also includes a flipping drive mechanism 13. Along the conveying direction of the conveying device 10, the flipping drive mechanism 13 is located between the first spraying device 60 and the second spraying device 70. The flipping drive mechanism 13 is used to drive the battery cell 200 to flip between a horizontal and an upright state. The flipping drive mechanism 13 includes a first track 131, and the clamping mechanism 12 includes a clamping assembly 121, a first mounting member 122, a transmission assembly 123, and a transmission wheel 124. The clamping assembly 121 is mounted on the first mounting member 122 and is used to clamp the battery cell 200. The first mounting member 122 is mounted on the transmission assembly 123. The transmission wheel 124 is connected to the transmission assembly 123. When the transmission wheel 124 moves to the flipping drive mechanism 13, it abuts against the first track 131. The first track 131 is configured to drive the transmission wheel 124 to move linearly along the first direction X. The transmission assembly 123 converts the linear motion of the transmission wheel 124 into the rotation of the first mounting member 122 around the first circumference. The first direction X intersects the conveying direction of the conveying track 11 and the arrangement direction of the clamping mechanism 12 to the conveying track 11.The first track 131 includes a first segment 1311, a second segment 1312, and a third segment 1313 in sequence along the direction from the first spraying device 60 to the second spraying device 70. The first segment 1311 is located upstream of the second spraying device 70, the second segment 1312 passes at least partially through the second spraying device 70, and the third segment 1313 is located downstream of the second spraying device 70. Along the first direction X, the width of the first segment 1311 gradually increases continuously from the starting end to the second segment 1312, the width of the second segment 1312 remains constant, and the width of the third segment 1313 gradually decreases continuously from the second segment 1312 to the end of the first track 131. The linear motion of the drive wheel 124 on the third segment 1313 drives the first mounting member 122 to rotate around the second circumferential direction, which is opposite to the first circumferential direction. The transmission assembly 123 includes a rack 1231, a gear 1232, a rotating shaft 1233, and a shaft bracket 1234. The transmission wheel 124 is mounted on the rack 1231, and the rack 1231 meshes with the gear 1232. The gear 1232 is coaxially connected to the rotating shaft 1233 and rotates synchronously. The rotating shaft 1233 is mounted on the shaft bracket 1234, and the first mounting part 122 is mounted on the rotating shaft 1233 and rotates synchronously with the rotating shaft 1233. There are two rust removal devices, namely a first rust removal device 20 and a second rust removal device 30. The first rust removal device 20 includes a first laser rust removal component 21, which is located on one side of the conveying track 11 along the first direction X. The first laser rust removal component 21 is used to remove rust from the side weld. The second rust removal device 30 includes a second laser rust removal component 31, which is located on one side of the conveying track 11 along the first direction X and is used to remove rust from the end face weld. The first negative pressure dust extraction assembly 24 is mounted on top of the first protective cover 23 and is configured to be directly above the delivered battery cell 200. The first laser rust removal assembly 21 is located on one side of the conveying device 10 along the first direction X and is configured to face the side wall of the delivered battery cell 200. The first rust removal device 20 also includes a second rotary lifting mechanism 22, which is used to lift the battery cell 200 on the clamping mechanism 12 and drive the battery cell 200 to rotate around its own axis. The first laser rust removal assembly 21 is used to perform rust removal on the rotating side weld. The first rust removal device 20 further includes a first protective cover 23 and a first negative pressure dust collection component 24. The first protective cover 23 is disposed across the conveying device 10. The first laser rust removal component 21 and at least a portion of the first negative pressure dust collection component 24 are respectively installed inside the first protective cover 23. And / or, the second rust removal device 30 further includes a second protective cover 32 and a second negative pressure dust collection component 33. The second protective cover 32 is disposed across the conveying device 10. The second laser rust removal component 31 and at least a portion of the second negative pressure dust collection component 33 are respectively installed inside the second protective cover 32.The battery weld rust removal and spraying equipment 100 also includes a first cleaning device 40 and a second cleaning device 50. Along the conveying direction of the conveying device 10, both the first cleaning device 40 and the second cleaning device 50 are located between the rust removal device and the first spraying device 60. The first cleaning device 40 is used to clean the side welds in a horizontal position, and the second cleaning device 50 is used to clean the end welds in a horizontal position. The first cleaning device 40 includes a laser cleaning component 41, which is used to clean the side welds; and / or, the second cleaning device 50 includes a plasma cleaning component 51, which is used to clean the end welds. The first cleaning device 40 includes a third protective cover 42 and a third negative pressure suction assembly 43. The third protective cover 42 is disposed across the conveying device 10. The laser cleaning assembly 41 and at least a portion of the third negative pressure suction assembly 43 are respectively installed inside the third protective cover 42. The second cleaning device 50 includes a fourth protective cover 52 and a fourth negative pressure suction assembly 53. The fourth protective cover 52 is disposed across the conveying device 10. The plasma cleaning assembly 51 and at least a portion of the fourth negative pressure suction assembly 53 are respectively installed inside the fourth protective cover 52. The first rotary lifting mechanism 61 includes a lifting assembly 611 and an end-pressing rotary assembly 612. The lifting assembly 611 is located on one side of the conveying device 10 along the first direction X, and the end-pressing rotary assembly 612 is located on the other side of the conveying device 10 along the first direction X. The lifting assembly 611 is used to support one end of the battery cell 200 on the clamping mechanism 12 and drive the battery cell 200 to rise and fall. The end-pressing rotary assembly 612 is used to press down the other end of the battery cell 200 and drive the battery cell 200 to rotate on the lifting assembly 611. The lifting assembly 611 includes a first mounting frame 6111, a first lifting member 6112, and a lifting member 6113. The first lifting member 6112 is mounted on the first mounting frame 6111, and the lifting member 6113 is mounted on the first lifting member 6112 and rises and falls under the drive of the first lifting member 6112. The side of the lifting member 6113 opposite to the end-pressing rotary assembly 612 is provided with a limiting plate 6116 for limiting the battery cell 200. The limiting plate 6116 is provided with at least one auxiliary rotary bearing 6117, which is used to abut against one end of the battery cell 200. The end-pressing rotary assembly 612 is used to press the other end of the battery cell 200. The lifting assembly 611 also includes a second track 6114 and a first moving drive 6115 mounted on the first mounting bracket 6111. The length direction of the second track 6114 is arranged along the first direction X. The first lifting member 6112 is mounted on the second track 6114. The first moving drive 6115 is connected to the first lifting member 6112 and is used to drive the first lifting member 6112 to move along the first direction X.The end-pressure rotation assembly 612 includes a second mounting bracket 6121, a second moving drive member 6122, a second mounting member 6123, a rotation drive member 6124, and a clamping member 6125. The second moving drive member 6122 is mounted on the second mounting bracket 6121, and the second mounting member 6123 is connected to the second moving drive member 6122. The second moving drive member 6122 is used to drive the second mounting member 6123 to move along the first direction X. The rotation drive member 6124 and the clamping member 6125 are both located on the second mounting member 6123. The rotation drive member 6124 is connected to the clamping member 6125. The clamping member 6125 is used to abut against the end of the battery cell 200 and drive the battery cell 200 to rotate around its own axis. The end-pressure rotation assembly 612 also includes a second lifting member 6126, which is mounted on the second mounting member 6123. A rotation drive member 6124 is mounted on the second lifting member 6126. The second lifting member 6126 is used to drive the rotation drive member 6124 and the clamping member 6125 to rise and fall. The conveying track 11 is a magnetic levitation stator track, and the clamping mechanism 12 is equipped with a magnetic levitation mover that cooperates with the magnetic levitation stator track.

[0172] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0173] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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. However, these 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 this application.

Claims

1. A battery weld rust removal and spraying equipment, characterized in that, include: A conveying device includes a conveying track and a clamping mechanism located on the conveying track, the clamping mechanism being used to clamp a battery cell and being movable along the conveying track, the clamping mechanism being configured to allow the battery cell to flip between a horizontal and an vertical position; At least one rust removal device is provided on the conveying path of the conveying device for removing rust from the weld seams of the end caps of the battery cell in the horizontal position. The first spraying device is disposed on the conveying path of the conveying device and includes a first rotating lifting mechanism and a first spraying mechanism. The first rotating lifting mechanism is used to lift the battery cell on the clamping mechanism and drive the battery cell to rotate around its own axis. The first spraying mechanism is used to spray the side weld of the end cap of the battery cell in the horizontal and rotating state. as well as The second spraying device is disposed on the conveying path of the conveying device and includes a second spraying mechanism. The second spraying mechanism is used to spray the end face weld of the battery cell in the upright state.

2. The battery weld rust removal and spraying equipment according to claim 1, characterized in that, The conveying device further includes a flipping drive mechanism. Along the conveying direction of the conveying device, the flipping drive mechanism is located downstream of the first spraying device. The flipping drive mechanism is used to drive the battery cell to flip between the horizontal state and the vertical state.

3. The battery weld rust removal and spraying equipment according to claim 2, characterized in that, The flipping drive mechanism includes a first track, and the clamping mechanism includes a clamping component, a first mounting member, a transmission component, and a transmission wheel. The clamping component is mounted on the first mounting member and is used to clamp the battery cell. The first mounting member is mounted on the transmission component. The transmission wheel is connected to the transmission component. When the transmission wheel moves to the flipping drive mechanism, it abuts against the first track. The first track is configured to drive the transmission wheel to move linearly in a first direction. The transmission component converts the linear motion of the transmission wheel into rotation of the first mounting member around a first circumference. The first direction intersects the conveying direction of the conveying track and the arrangement direction of the clamping mechanism to the conveying track.

4. The battery weld rust removal and spraying equipment according to claim 3, characterized in that, The first track comprises a first segment, a second segment, and a third segment sequentially along the direction from the first spraying device to the second spraying device. The first segment is located upstream of the second spraying device, the second segment passes at least partially through the second spraying device, and the third segment is located downstream of the second spraying device. Along the first direction, the width of the first segment gradually increases continuously from the starting end to the second segment, the width of the second segment remains constant, and the width of the third segment gradually decreases continuously from the second segment to the end of the first track. The linear motion of the drive wheel on the third segment drives the first mounting component to rotate around a second circumferential direction, which is opposite to the second circumferential direction.

5. The battery weld rust removal and spraying equipment according to claim 4, characterized in that, The transmission assembly includes a rack, a gear, a rotating shaft, and a shaft bracket. The transmission wheel is mounted on the rack, the rack meshes with the gear, the gear is coaxially connected to the rotating shaft and rotates synchronously, the rotating shaft is mounted on the shaft bracket, and the first mounting member is mounted on the rotating shaft and rotates synchronously with the rotating shaft.

6. The battery weld rust removal and spraying equipment according to claim 1, characterized in that, The number of rust removal devices is two, namely a first rust removal device and a second rust removal device; the first rust removal device includes a first laser rust removal component, which is used to remove rust from the side weld; the second rust removal device includes a second laser rust removal component, which is located on one side of the conveying track along a first direction and is used to remove rust from the end face weld. The first direction intersects the conveying direction of the conveying track and the arrangement direction of the clamping mechanism to the conveying track.

7. The battery weld rust removal and spraying equipment according to claim 6, characterized in that, The first rust removal device further includes a second rotary lifting mechanism, which is used to lift the battery cell on the clamping mechanism and drive the battery cell to rotate around its own axis. The first laser rust removal component is used to remove rust from the rotating side weld.

8. The battery weld rust removal and spraying equipment according to claim 7, characterized in that, The first rust removal device further includes a first protective cover and a first negative pressure dust collection component. The first protective cover is disposed across the conveying device, and the first laser rust removal component and at least a portion of the first negative pressure dust collection component are respectively installed inside the first protective cover; and / or, the second rust removal device further includes a second protective cover and a second negative pressure dust collection component. The second protective cover is disposed across the conveying device, and the second laser rust removal component and at least a portion of the second negative pressure dust collection component are respectively installed inside the second protective cover.

9. The battery weld rust removal and spraying equipment according to claim 8, characterized in that, The first negative pressure dust collection component is mounted on top of the first protective cover and is configured to be located directly above the delivered battery cell. The first laser rust removal component is located on one side of the conveying device along the first direction and is configured to be directly opposite the side wall of the delivered battery cell.

10. The battery weld rust removal and spraying equipment according to claim 1, characterized in that, The battery weld rust removal and spraying equipment also includes a first cleaning device and a second cleaning device. Along the conveying direction of the conveying device, the first cleaning device and the second cleaning device are both located between the rust removal device and the first spraying device. The first cleaning device is used to clean the side weld in a horizontal position, and the second cleaning device is used to clean the end weld in a horizontal position.

11. The battery weld rust removal and spraying equipment according to claim 10, characterized in that, The first cleaning device includes a laser cleaning component, which is used to clean the side weld. And / or, the second cleaning device includes a plasma cleaning assembly for cleaning the end face weld.

12. The battery weld rust removal and spraying equipment according to claim 11, characterized in that, The first cleaning device includes a third protective cover and a third negative pressure suction assembly, the third protective cover being disposed across the conveying device, and the laser cleaning assembly and at least a portion of the third negative pressure suction assembly being respectively installed inside the third protective cover; and / or, the second cleaning device includes a fourth protective cover and a fourth negative pressure suction assembly, the fourth protective cover being disposed across the conveying device, and the plasma cleaning assembly and at least a portion of the fourth negative pressure suction assembly being respectively installed inside the fourth protective cover.

13. The battery weld rust removal and spraying equipment according to claim 1, characterized in that, The first rotary lifting mechanism includes a lifting component and an end-pressing rotary component. The lifting component is located on one side of the conveying device along the first direction, and the end-pressing rotary component is located on the other side of the conveying device along the first direction. The lifting component is used to support one end of the battery cell on the clamping mechanism and drive the battery cell to rise and fall. The end-pressing rotary component is used to press down the other end of the battery cell and drive the battery cell to rotate on the lifting component. The first direction intersects the conveying direction of the conveying track and intersects the arrangement direction of the clamping mechanism to the conveying track.

14. The battery weld rust removal and spraying equipment according to claim 13, characterized in that, The lifting assembly includes a first mounting frame, a first lifting member, and a lifting member. The first lifting member is mounted on the first mounting frame, and the lifting member is mounted on the first lifting member and moves up and down under the drive of the first lifting member. The lifting member has a limiting plate for limiting the battery cell on the side opposite to the end pressure rotation assembly.

15. The battery weld rust removal and spraying equipment according to claim 14, characterized in that, The limiting plate is provided with at least one auxiliary rotary bearing, which is used to abut against one end of the battery cell, and the end pressure rotary assembly is used to press the other end of the battery cell.

16. The battery weld rust removal and spraying equipment according to claim 14, characterized in that, The lifting assembly further includes a second track and a first moving drive component mounted on the first mounting frame. The length direction of the second track is arranged along the first direction. The first lifting component is mounted on the second track. The first moving drive component is connected to the first lifting component and is used to drive the first lifting component to move along the first direction.

17. The battery weld rust removal and spraying equipment according to claim 13, characterized in that, The end-pressure rotation assembly includes a second mounting bracket, a second movable drive component, a second mounting component, a rotation drive component, and a clamping component. The second movable drive component is mounted on the second mounting bracket, and the second mounting component is connected to the second movable drive component. The second movable drive component is used to drive the second mounting component to move along the first direction. The rotation drive component and the clamping component are both located on the second mounting component. The rotation drive component and the clamping component are connected in a transmission manner. The clamping component is used to abut against the end of the battery cell and drive the battery cell to rotate around its own axis.

18. The battery weld rust removal and spraying equipment according to claim 17, characterized in that, The end-pressure rotation assembly further includes a second lifting member, which is mounted on the second mounting member. The rotation drive member is mounted on the second lifting member, and the second lifting member is used to drive the rotation drive member and the clamping member to move up and down.

19. The battery weld rust removal and spraying equipment according to any one of claims 1 to 18, characterized in that, The conveying track is a magnetic levitation stator track, and the clamping mechanism is equipped with a magnetic levitation mover that cooperates with the magnetic levitation stator track.

20. A battery production system, characterized in that, Including the battery weld rust removal and spraying equipment as described in any one of claims 1-19.

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