A 6D magnetic levitation system-based automatic laser etching line

Abstract

The utility model discloses an automatic line of laser etching based on 6D magnetic suspension system, and realizes non -contact displacement through magnetic suspension transmission device, combines loading, laser etching, overturning and unloading device, solves the positioning deviation and the collision damage problem caused by traditional belt transmission, not only improves the positioning accuracy in the process of laser etching of electric core, reduces mechanical collision damage, but also enhances the flexible ability of production line and improves production efficiency and yield.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to a laser engraving automatic line based on a 6D magnetic levitation system. Background Technology

[0002] In current lithium battery manufacturing processes, laser engraving technology is widely used in key processes such as coding and marking on the surface of battery cells, insulation treatment, or material stripping. However, existing laser engraving production lines generally face technical bottlenecks in the cell transport stage. Currently, the mainstream cell transport method mostly uses a belt pulley mechanism, where friction drives the cells sequentially into the laser engraving station. This mechanical contact transport method has inherent drawbacks: First, after long-term operation, the belt is prone to stretching deformation or slippage, leading to a decrease in the positioning accuracy of the cells and making it difficult to meet the micron-level repeatability requirements of laser processing. Second, at high production speeds, hard collisions can easily occur between the cells and the transport mechanism, as well as between the cells themselves. This uncontrolled impact can not only cause dents or coating peeling on the cell casing surface, affecting product appearance quality, but more seriously, it can lead to misalignment of the internal electrode plates or damage to the separator, creating safety hazards.

[0003] Furthermore, due to the diverse specifications and models of battery cells, traditional belt conveyor lines often require fixture replacement or mechanical limit adjustment when switching products, resulting in low changeover efficiency and difficulty in adapting to the demands of flexible production. The aforementioned insufficient transmission accuracy and the risk of mechanical impact frequently lead to processing anomalies such as laser engraving focus misalignment, optical path obstruction, or battery cell bursting, directly reducing product yield and production stability, and hindering further improvements in the automation level of battery cell manufacturing. Utility Model Content

[0004] In view of the above problems, this utility model provides a laser engraving automatic line based on a 6D magnetic levitation system to solve the defects of insufficient transmission accuracy and mechanical impact risk of existing transmission devices.

[0005] In a first aspect, this utility model provides an automated laser engraving line based on a 6D magnetic levitation system, characterized in that it includes:

[0006] A magnetic levitation transmission device includes a magnetic levitation stator and a carrier mover, wherein the carrier mover is disposed above the magnetic levitation stator and is driven to move by the magnetic levitation stator;

[0007] A feeding device is disposed at the first end of the magnetic levitation stator, and the feeding device is used to feed the battery cells onto the carrier mover;

[0008] At least one first laser engraving device is disposed on the first side of the magnetic levitation stator for laser engraving the first surface of the battery cell that has moved to the lower side of the first laser engraving device;

[0009] A flipping device is provided at the second end of the magnetically levitated stator. The flipping device is used to flip the battery cell that has been moved to the bottom of the flipping device in the vertical direction.

[0010] And at least one second laser engraving device is disposed on the second side of the magnetic levitation stator, the second laser engraving device being used to laser engrave the second surface of the battery cell that has moved below the first laser engraving device.

[0011] In some alternative embodiments, the carrier mover includes a magnetic levitation base plate and a fixing component disposed on the magnetic levitation base plate. The fixing component is used to fix the battery cell and moves on the magnetic levitation stator under the magnetic force of the magnetic levitation base plate and the magnetic levitation stator.

[0012] In some optional embodiments, the fixing component includes a fixing bracket, a first positioning plate, a second positioning plate, a first movable plate, and a second movable plate. The first positioning plate and the second positioning plate are disposed adjacent to each other above the fixing bracket. The first movable plate and the second movable plate are movably connected above the fixing bracket via a drive motor or a drive cylinder. The first movable plate is disposed opposite to the first positioning plate, and the second movable plate is disposed opposite to the second positioning plate. The first positioning plate, the second positioning plate, the first movable plate, and the second movable plate enclose a fixing space for fixing the battery cell.

[0013] In some optional embodiments, the magnetic levitation stator is provided with a feeding area, a first laser engraving area, a flipping area, and a second laser engraving area. The feeding device is arranged adjacent to the feeding area, the first laser engraving device is arranged adjacent to the first laser engraving area, the flipping device is arranged adjacent to the flipping area, and the second laser engraving device is arranged adjacent to the second laser engraving area. The carrier mover moves sequentially along the feeding area, the first laser engraving area, the flipping area, and the second laser engraving area under the drive of the magnetic levitation stator.

[0014] In some optional embodiments, both the first laser engraving device and the second laser engraving device include a laser engraving frame, a laser, and a laser head. The laser is disposed on the upper end of the laser engraving frame, the laser is connected to the laser head, and the laser head is located above the first laser engraving area or the second laser engraving area.

[0015] In some optional embodiments, the flipping device includes a multi-axis robot, a first fixed plate, a lifting cylinder, a second fixed plate, a rotary cylinder, and a suction fixture. The first fixed plate is disposed at the drive end of the multi-axis robot, the lifting cylinder is disposed on the first fixed plate, the second fixed plate is disposed on the lifting cylinder and is driven to move up and down by the lifting cylinder, the rotary cylinder is disposed on the second fixed plate, and the suction fixture is disposed on the drive shaft of the rotary cylinder and is driven to rotate 180 degrees by the rotary cylinder.

[0016] In some optional embodiments, a first CCD device and a second CCD device are also included; the magnetically levitated stator is further provided with a first detection area and a second detection area, the first detection area being located between the feeding area and the first laser engraving area, and the second detection area being adjacent to the first laser engraving area and the flipping area; the first CCD device is adjacent to the first detection area, and the first CCD device is used to detect the battery cell before the first laser engraving device engraves it; the second CCD device is adjacent to the second detection area, and the second CCD device is used to detect the battery cell after the first laser engraving device engraves it.

[0017] In some optional embodiments, a third CCD device and a fourth CCD device are also included; the magnetically levitated stator is further provided with a third detection area and a fourth detection area, the third detection area being located between the flipping area and the second laser-engraved area, and the fourth detection area being arranged adjacent to the second laser-engraved area; the third CCD device is arranged adjacent to the third detection area, and the third CCD device is used to detect the battery cell before the second laser-engraved device engraves it; the fourth CCD device is arranged adjacent to the fourth detection area, and the fourth CCD device is used to detect the battery cell after the second laser-engraved device engraves it.

[0018] In some optional embodiments, the first CCD device, the second CCD device, the third CCD device, and the fourth CCD device each include a CCD bracket, a camera adjustment assembly, a detection camera, and a coaxial light source. The camera adjustment assembly is disposed on the upper end of the CCD bracket, and the detection camera is disposed on the upper end of the camera adjustment assembly. The coaxial light source is disposed on the lower end of the camera adjustment assembly and located below the detection camera.

[0019] In some optional embodiments, a feeding device is also included; the magnetic levitation stator is further provided with a feeding area, which is adjacent to the feeding area and the fourth detection area; the feeding device is adjacent to the feeding area, and the feeding device is used to feed the laser-engraved battery cell from the carrier mover.

[0020] This invention provides an automatic laser engraving line based on a 6D magnetic levitation system. Its advantages are as follows: This invention achieves non-contact displacement through a magnetic levitation transmission device. Combined with feeding, laser engraving, flipping, and unloading devices, it solves the problems of positioning deviation and collision damage caused by traditional belt transmission. It not only improves the positioning accuracy and reduces mechanical collision damage during the laser engraving process of battery cells, but also enhances the flexibility of the production line and improves production efficiency and yield.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model embodiment, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model embodiment more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0022] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 A top view schematic diagram of an automated laser engraving line based on a 6D magnetic levitation system, according to an embodiment of the present invention, is shown.

[0024] Figure 2 An exploded view of a magnetic levitation transmission device according to an embodiment of the present invention is shown;

[0025] Figure 3 A top view schematic diagram of a magnetically levitated stator according to an embodiment of the present invention is shown;

[0026] Figure 4 A perspective view of the first laser engraving device according to an embodiment of the present invention is shown;

[0027] Figure 5 A partial perspective view of the flipping device according to an embodiment of the present invention is shown;

[0028] Figure 6 A perspective view of a first CCD device according to an embodiment of the present invention is shown.

[0029] Figure label:

[0030] 10. Magnetic levitation transmission device; 11. Magnetic levitation stator; 111. Loading area; 112. First laser engraving area; 113. Tilting area; 114. Second laser engraving area; 115. First detection area; 116. Second detection area; 117. Third detection area; 118. Fourth detection area; 119. Unloading area; 12. Carrier mover; 121. Magnetic levitation base plate; 122. Fixing component; 123. Fixing bracket; 124. First positioning plate; 125. Second positioning plate; 126. First movable plate; 127. Second movable plate;

[0031] 20. Feeding device;

[0032] 30. First laser engraving device; 31. Laser engraving machine frame; 32. Laser; 33. Laser head;

[0033] 40. Tilting device; 41. First fixed plate; 42. Lifting cylinder; 43. Second fixed plate; 44. Rotating cylinder; 45. Suction fixture;

[0034] 50. Second laser engraving device;

[0035] 60. First CCD device; 61. CCD support; 62. Camera adjustment assembly; 63. Detection camera; 64. Coaxial light source;

[0036] 70. Second CCD device;

[0037] 80. The third CCD device;

[0038] 90. The fourth CCD device;

[0039] 100. Feeding device. Detailed Implementation

[0040] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein.

[0041] Example 1:

[0042] Figure 1-6 This invention illustrates a first embodiment of an automated laser engraving line based on a 6D magnetic levitation system. The automated laser engraving line based on the 6D magnetic levitation system specifically includes:

[0043] The magnetic levitation transmission device 10 includes a magnetic levitation stator 11 and a carrier mover 12, the carrier mover 12 being disposed above the magnetic levitation stator 11 and being driven by the magnetic levitation stator 11 to perform displacement.

[0044] A feeding device 20 is disposed at the first end of the magnetic levitation stator 11. The feeding device 20 is used to feed the battery cell onto the carrier mover 12.

[0045] At least one first laser engraving device 30 is disposed on the first side of the magnetic levitation stator 11 for laser engraving the first surface of the battery cell that has moved to the bottom of the first laser engraving device;

[0046] A flipping device 40 is provided at the second end of the magnetic levitation stator 11. The flipping device 40 is used to flip the battery cell that has moved to the bottom of the flipping device 40 in the vertical direction.

[0047] And at least one second laser engraving device 50 is disposed on the second side of the magnetic levitation stator 11. The second laser engraving device 50 is used to laser engrave the second surface of the battery cell that has moved to the lower side of the first laser engraving device.

[0048] In this embodiment, the 6D magnetic levitation system is an advanced non-contact motion control technology that uses electromagnetic force to achieve precise control of an object's translation and rotation in six degrees of freedom within three-dimensional space. In this invention, this system is applied to the transmission of battery cells to achieve high-precision, frictionless, and wear-free motion. The laser engraving automated line refers to a production line that integrates laser engraving technology with automated transmission and processing functions. It aims to improve production efficiency and product quality by automating a series of processes, including loading and unloading, transmission, laser engraving, and flipping of battery cells.

[0049] This invention provides a laser engraving automatic line based on a 6D magnetic levitation system, the core of which is to use magnetic levitation technology to achieve non-contact high-precision transmission and processing of battery cells.

[0050] Specifically, the automated line includes a magnetic levitation transmission device 10, which comprises a magnetic levitation stator 11 and a carrier mover 12. The magnetic levitation stator 11 can be composed of an array of electromagnetic coils arranged along the transmission path, generating a magnetic field by controlling the current. The carrier mover 12 can be a platform with a permanent magnet or electromagnet, placed above the magnetic levitation stator 11. In one implementation, the magnetic levitation stator 11 drives the carrier mover 12 to linearly displace along a preset path by generating an alternating magnetic field. In another implementation, the magnetic levitation stator 11 can generate a controllable magnetic force, enabling the carrier mover 12 to move two-dimensionally in the horizontal direction while maintaining a certain levitation height. In the magnetic levitation transmission device 10, the magnetic levitation stator 11 can be fixed on a frame or base, and the magnetic levitation stator 11 is located in the middle of the frame or base. A first CCD device, a second CCD device, a third CCD device, and a fourth CCD device can be disposed on the same frame or base as the magnetic levitation transmission device and arranged adjacent to each other on both sides of the magnetic levitation stator 11.

[0051] In addition, see Figure 3 The first end of the magnetic levitation stator 11 can be the location of the loading area 111 and the unloading area 119, and the second end of the magnetic levitation stator 11 can be the location of the folding area 113; the first side of the magnetic levitation stator 11 can be the location of the first laser engraving area 112, the first detection area 115, and the second detection area 116; the second side of the magnetic levitation stator 11 can be the location of the second laser engraving area 114, the third detection area 117, and the fourth detection area 118.

[0052] A feeding device 20 is disposed at the first end of the magnetic levitation stator 11 and is used to feed the battery cells onto the carrier mover 12. For example, the feeding device 20 can be a simple robotic arm that uses a suction cup or clamp to remove the battery cells from the hopper and then place them onto the stationary or slowly moving carrier mover 12. Alternatively, the feeding device 20 can be a push rod mechanism that pushes the battery cells from the feeding track to a fixed position on the carrier mover 12.

[0053] At least one first laser engraving device 30 is disposed on the first side of the magnetic levitation stator 11 for laser engraving the first surface of the battery cell that has moved below the first laser engraving device 30. The first laser engraving device 30 may consist of a fixedly mounted laser head 33, which performs a preset laser engraving operation on the surface of the battery cell when the carrier mover 12 carries the battery cell below it. Alternatively, the first laser engraving device 30 may be a laser head 33 mounted on a simple two-dimensional motion platform that scans within a small area to accommodate slight positional deviations of the battery cell on the carrier mover 12. The first surface of the battery cell may be its front or top surface.

[0054] A flipping device 40 is disposed at the second end of the magnetically levitated stator 11 and is used to flip the battery cell, which has been moved below the flipping device 40, vertically. For example, the flipping device 40 can be a robotic arm with a rotating gripper. After the carrier mover 12 transports the battery cell to the designated position, the robotic arm grips the battery cell and rotates it 180 degrees along the vertical axis, and then repositions it onto the carrier mover 12. As another implementation, the flipping device 40 can be a simple flipping mechanism, such as a cylinder-driven rotating platform, to flip the battery cell from one plane to another.

[0055] At least one second laser engraving device 50 is disposed on the second side of the magnetic levitation stator 11. This second laser engraving device 50 is used to laser engrave the second surface of the battery cell that has moved below the first laser engraving device 30. The second laser engraving device 50 can be implemented similarly to the first laser engraving device 30, for example, consisting of a fixedly mounted laser head 33, or a laser head 33 mounted on a simple motion platform, to laser engrave the other surface of the flipped battery cell. The first surface of the battery cell can be the back or bottom surface of the battery cell.

[0056] This utility model relates to an automated laser engraving line based on a 6D magnetic levitation system. By employing non-contact magnetic levitation transmission technology, it effectively solves the problems of insufficient positioning accuracy, mechanical collision damage, and low changeover efficiency inherent in traditional belt conveyor mechanisms during battery cell laser engraving. This solution achieves precise, stable, and frictionless transmission of battery cells between workstations, avoiding damage to the surface and internal structure of the cells, and significantly improving the yield rate and production stability of laser engraving. Simultaneously, its flexible transmission capability enhances the production line's adaptability to different battery cell models.

[0057] Example 2

[0058] Based on Embodiment 1, a second embodiment of the laser engraving automatic line based on a 6D magnetic levitation system of this utility model is provided to further illustrate Embodiment 1.

[0059] In such Figure 2 In the embodiment shown, the carrier mover 12 includes a magnetic levitation base plate 121 and a fixing component 122 disposed on the magnetic levitation base plate 121. The fixing component 122 is used to fix the battery cell, and the fixing component 122 moves on the magnetic levitation stator 11 under the magnetic force of the magnetic levitation base plate 121 and the magnetic levitation stator 11.

[0060] Specifically, as the core load-bearing component of the carrier mover 12, the magnetic levitation base plate 121 is a platform that directly interacts magnetically with the magnetic levitation stator 11. It typically integrates permanent magnets or electromagnetic coils, which interact with the magnetic field generated by the magnetic levitation stator 11 to achieve levitation, driving, and precise position control of the carrier mover 12. The magnetic levitation base plate 121 provides a stable mounting foundation for the fixing assembly 122 and ensures smooth operation of the entire carrier mover 12 during transmission. The fixing assembly 122 is a mechanism mounted on the magnetic levitation base plate 121, whose main function is to firmly fix the battery cell to be processed onto the carrier mover 12. The fixing assembly 122 can be implemented in various forms; for example, it can be designed as a mechanical clamping mechanism to fix the battery cell through clamping force; it can also be a vacuum adsorption mechanism to adsorb the battery cell into a designated position through negative pressure; or it can use a friction-based fixing method, using materials or structures with a high coefficient of friction to restrict the movement of the battery cell. Regardless of the form employed, the fixing component 122 is designed to ensure that the battery cell maintains its preset, precise position during high-speed movement, acceleration, deceleration, and laser engraving operations of the carrier mover 12, preventing any unnecessary displacement or vibration. Simultaneously, the fixing component 122 does not move independently; rather, as part of the carrier mover 12, it moves precisely along a preset path together with the magnetic levitation base plate 121 under the magnetic force generated by the magnetic levitation stator 11. This integrated movement ensures that the battery cell, after being fixed, is highly synchronized with the movement trajectory of the carrier mover 12, thus providing a stable processing benchmark for subsequent laser engraving, flipping, and other processes.

[0061] By introducing a magnetic levitation base plate 121 and a fixing component 122 into the carrier mover 12, this invention effectively solves the problem of unstable fixation of the battery cell during high-speed magnetic levitation transmission. The fixing component 122 firmly fixes the battery cell to the magnetic levitation base plate 121, ensuring that the battery cell maintains precise positioning throughout the entire laser engraving automatic line transmission process, including loading, first surface laser engraving, flipping, and second surface laser engraving. This stable fixing method prevents the battery cell from shifting or falling due to inertia or external disturbances, thereby significantly improving the accuracy and consistency of laser engraving, reducing the generation of defective products, and ensuring the continuity and efficiency of the production line.

[0062] In some of the above embodiments, the fixing component 122 includes a fixing bracket 123, a first positioning plate 124, a second positioning plate 125, a first movable plate 126, and a second movable plate 127. The first positioning plate 124 and the second positioning plate 125 are arranged adjacent to each other above the fixing bracket 123. The first movable plate 126 and the second movable plate 127 are movably connected above the fixing bracket 123 via a drive motor or a drive cylinder. The first movable plate 126 is arranged opposite to the first positioning plate 124, and the second movable plate 127 is arranged opposite to the second positioning plate 125. The first positioning plate 124, the second positioning plate 125, the first movable plate 126, and the second movable plate 127 enclose a fixing space for fixing the battery cell.

[0063] The fixed bracket 123 serves as the structural foundation of the fixed assembly 122, its main function being to provide stable support and a mounting platform for bearing and positioning other fixed assemblies 122. This bracket is typically made of high-strength, high-rigidity materials, such as aluminum alloy, stainless steel, or engineering plastics, to ensure the overall structural stability and deformation resistance of the fixed assembly 122 during high-speed operation of the magnetic levitation system and laser engraving operations. Its design should consider the balance between lightweighting and structural strength to reduce the overall mass of the carrier mover 12 while ensuring sufficient support force.

[0064] The first positioning plate 124 and the second positioning plate 125, as the fixing parts of the fixing assembly 122, are mainly used to provide an initial and accurate positioning reference for the battery cell to be fixed. They are typically securely mounted above the fixing bracket 123 and are preset according to the geometry and size of the battery cell. These positioning plates can be made of wear-resistant, low-friction materials to reduce wear on the battery cell during placement and removal and to ensure repeatable positioning accuracy. In practical applications, they can be designed in L-shape, U-shape, or other irregular shapes to better fit the sides or bottom of the battery cell, thereby achieving initial positioning in multiple directions.

[0065] The first movable plate 126 and the second movable plate 127 are key components in the fixing assembly 122 for achieving dynamic clamping. They are movably connected above the fixing bracket 123 via a drive motor or drive cylinder, and are positioned opposite to the first positioning plate 124 and the second positioning plate 125. When the battery cell is placed in the fixed space, the movable plates move inward under the action of the driving force, applying a clamping force to the battery cell, thereby firmly fixing it between the positioning plates. The surface of the movable plates may be provided with anti-slip or cushioning materials to increase friction and protect the surface of the battery cell from damage.

[0066] The drive motor or drive cylinder is the actuator that moves the first movable plate 126 and the second movable plate 127. The drive motor typically converts rotary motion into linear motion through a transmission mechanism such as a lead screw or rack and pinion, thereby driving the movable plates to achieve precise displacement and clamping force control. The drive cylinder uses compressed air pressure to push a piston rod, achieving rapid reciprocating motion of the movable plates, suitable for applications requiring high clamping speed. The choice of drive method depends on a comprehensive consideration of clamping accuracy, speed, torque control, and cost. The drive motor or drive cylinder can be installed inside the fixed bracket, with the first and second movable plates connected to the drive portion of the drive motor or drive cylinder and protruding from the upper surface of the fixed bracket.

[0067] The fixed space is an area enclosed by the first positioning plate 124, the second positioning plate 125, the first movable plate 126, and the second movable plate 127. Its main function is to accommodate and precisely fix the battery cell to be laser-engraved. The size and shape of this space can be adjusted according to the actual size of the battery cell to accommodate different specifications. By moving the movable plates, flexible clamping of the battery cell can be achieved, ensuring that the battery cell remains in the preset position during magnetic levitation transmission and laser engraving, avoiding displacement caused by vibration or inertial force, thereby ensuring the accuracy and consistency of laser engraving.

[0068] Through the above technical solution, the fixing component 122 uses the fixing bracket 123 as a base and cleverly combines the first positioning plate 124, the second positioning plate 125, and the first movable plate 126 and the second movable plate 127 driven by the drive motor or the drive cylinder. This design allows the fixing component 122 to form an adjustable fixing space, thereby effectively solving the fixing problem caused by the dimensional tolerance of the battery cell. Specifically, when the battery cell is placed in the fixing space, the first positioning plate 124 and the second positioning plate 125 provide stable initial positioning, while the first movable plate 126 and the second movable plate 127, under the action of the driving force, adaptively adjust according to the actual size of the battery cell, accurately and firmly clamping it in the preset position. This active clamping mechanism ensures that the battery cell remains stable at all times when the magnetic levitation stator 11 drives the carrier mover 12 to move at high speed and when the first laser engraving device 30 and the second laser engraving device 50 perform high-precision laser engraving operations, avoiding the decline in laser engraving quality or production interruption caused by the shaking or displacement of the battery cell. In addition, this structure facilitates rapid loading and unloading, improving the overall operating efficiency and automation level of the laser engraving automatic line, and significantly enhancing production stability and product consistency.

[0069] In such Figure 3In the illustrated embodiment, the magnetic levitation stator 11 is provided with a feeding area 111, a first laser engraving area 112, a flipping area 113, and a second laser engraving area 114. The feeding device 20 is arranged adjacent to the feeding area 111, the first laser engraving device 30 is arranged adjacent to the first laser engraving area 112, the flipping device 40 is arranged adjacent to the flipping area 113, and the second laser engraving device 50 is arranged adjacent to the second laser engraving area 114. The carrier mover 12 moves sequentially along the feeding area 111, the first laser engraving area 112, the flipping area 113, and the second laser engraving area 114 under the drive of the magnetic levitation stator 11.

[0070] Specifically, the magnetic levitation stator 11, as the core component of the magnetic levitation transmission device 10, has its surface logically or physically divided into multiple functional areas, including a loading area 111, a first laser engraving area 112, a flipping area 113, and a second laser engraving area 114. These areas are designed to clearly define the operational scope of each process step, providing a basis for precise path planning of the carrier mover 12. For example, the loading area 111 is the starting position for the carrier mover 12 to receive the battery cell, the first laser engraving area 112 is the area for laser engraving the first surface of the battery cell, the flipping area 113 is the transition area for the battery cell flipping operation, and the second laser engraving area 114 is the area for laser engraving the second surface of the battery cell. This partitioning method can be defined by physically marking the surface of the magnetic levitation stator 11, logically defining it in the control system, or by setting corresponding process equipment above or beside the respective areas.

[0071] Meanwhile, the feeding device 20, the first laser engraving device 30, the flipping device 40, and the second laser engraving device 50 are all arranged adjacent to their corresponding functional areas. This adjacent arrangement ensures that each process device can perform operations efficiently within its corresponding functional area. For example, the feeding device 20 is located next to the feeding area 111, facilitating the accurate placement of the battery cells onto the carrier mover 12; the first laser engraving device 30 is located next to the first laser engraving area 112, ensuring that the laser head 33 can cover the battery cells in this area for laser engraving; the flipping device 40 is located next to the flipping area 113, facilitating the flipping of the battery cells arriving in this area; and the second laser engraving device 50 is located next to the second laser engraving area 114, for laser engraving on the second surface. This layout optimizes space utilization, reduces unnecessary movement distances and time, and improves production efficiency.

[0072] Based on this, the carrier mover 12, precisely driven by the magnetic levitation stator 11, moves sequentially along the loading area 111, the first laser engraving area 112, the flipping area 113, and the second laser engraving area 114. This sequential path planning ensures that the battery cell can pass through all necessary processing steps in sequence, avoiding process errors or omissions. Magnetic levitation drive provides a high-precision, high-speed, and contactless movement method, reducing wear and maintenance, and allowing for rapid switching and positioning between different areas. The control system can precisely control the start, stop, speed, and position of the carrier mover 12 according to the preset process flow, ensuring smooth operation in each area.

[0073] Through the above technical solution, the magnetic levitation stator 11 is clearly divided into a feeding area 111, a first laser engraving area 112, a flipping area 113, and a second laser engraving area 114. The corresponding process devices are arranged adjacent to these areas, providing a clear and efficient process layout for automated laser engraving of the battery cells. Driven by the magnetic levitation stator 11, the carrier mover 12 can sequentially and precisely pass through each functional area according to the preset process flow, thereby ensuring continuous and automated processing of the battery cells from feeding, first surface laser engraving, flipping, to second surface laser engraving. This combination of area division and sequential movement not only optimizes the space utilization of the production line and reduces unnecessary movement and waiting time, but also significantly improves the automation level and production efficiency of the entire laser engraving process, while reducing the need for manual intervention and ensuring the consistency and quality of product processing.

[0074] In such Figure 4In the illustrated embodiment, both the first laser engraving device 30 and the second laser engraving device 50 include a laser engraving frame 31, a laser 32, and a laser head 33. The laser engraving frame 31, serving as the fundamental support structure of the entire laser engraving system, is typically made of high-strength, high-rigidity materials (such as aluminum alloy or steel). Its design aims to provide a stable mounting platform, effectively suppress vibration, and ensure the positional accuracy and stability of the laser 32 and laser head 33 during long-term operation. The laser 32 is the core component that generates the laser beam. Its type can be selected according to the battery cell material and laser engraving requirements; for example, a fiber laser 32, a CO2 laser 32, or an ultraviolet laser 32 can be used to adapt to the absorption characteristics and processing precision requirements of different materials. The laser 32 is typically equipped with an independent power supply and cooling system to ensure its stable and efficient operation. The laser 32 is positioned at the upper end of the laser engraving frame 31. This layout not only facilitates heat dissipation but also optimizes the laser transmission path, making the entire system compact and easy to maintain. Laser 32 and laser head 33 are connected via optical fiber or a reflector assembly to ensure that the laser beam can be transmitted efficiently and without loss from laser 32 to laser head 33. Laser head 33 is a key component for performing laser engraving operations. It integrates an optical focusing lens and a high-speed galvanometer scanning system, enabling precise focusing and rapid scanning of the laser beam onto the pre-defined laser engraving area on the battery cell surface. Laser head 33 is positioned above the first laser engraving area 112 or the second laser engraving area 114. This top-down mounting allows the laser beam to be incident perpendicularly on the battery cell surface, ensuring the clarity and consistency of the laser engraving pattern, while also providing convenient operating space for battery cell loading, unloading, and positioning.

[0075] Through the above technical solutions, this utility model clarifies the internal structure and rational layout of the components of the first laser engraving device 30 and the second laser engraving device 50, effectively solving the problems of laser engraving stability, accuracy, and ease of operation that may be caused by unreasonable laser engraving device structure. The laser engraving frame 31 provides a solid and stable support for the entire laser engraving system, ensuring the positional accuracy of the laser 32 and laser head 33 during operation, thereby avoiding laser engraving deviations caused by vibration or displacement. The close connection and rational layout of the laser 32 and laser head 33 ensure efficient transmission and precise focusing of laser energy, enabling the laser beam to act stably and accurately on the surface of the battery cell, achieving a high-quality laser engraving effect. In addition, the design of the laser head 33 located above the laser engraving area not only provides ample working space for the entry, exit, and positioning of the battery cell, but also optimizes the laser path, further improving the efficiency and reliability of laser engraving. This structured design makes the laser engraving process more controllable, significantly improving the quality of laser engraving on the surface of the battery cell and the overall operating efficiency of the production line.

[0076] Example 3

[0077] Based on Embodiment 1 or Embodiment 2, the third embodiment of the laser engraving automatic line based on the 6D magnetic levitation system of this utility model is provided to further illustrate Embodiment 1 or Embodiment 2.

[0078] In such Figure 5 In the illustrated embodiment, the flipping device 40 includes a multi-axis robot, a first fixed plate 41, a lifting cylinder 42, a second fixed plate 43, a rotary cylinder 44, and a suction fixture 45. The first fixed plate 41 is disposed at the drive end of the multi-axis robot; the lifting cylinder 42 is disposed on the first fixed plate 41; the second fixed plate 43 is disposed on the lifting cylinder 42 and is driven to move up and down by the lifting cylinder 42; the rotary cylinder 44 is disposed on the second fixed plate 43; and the suction fixture 45 is disposed on the drive shaft of the rotary cylinder 44 and is driven by the rotary cylinder 44 to rotate 180 degrees.

[0079] Specifically, the multi-axis robot is an automated robotic arm with multiple degrees of freedom (e.g., three-axis, four-axis, six-axis, etc.), capable of precisely grasping, moving, and positioning battery cells in space. Through programmed control, the multi-axis robot can accurately pick up battery cells from the carrier mover 12 according to a preset trajectory and posture, perform a flipping operation, and precisely place them in the target position, thus ensuring the flexibility and high precision of the flipping process. The first fixed plate 41 is used to securely connect subsequent components such as the lifting cylinder 42 to the drive end of the multi-axis robot. It is typically made of high-strength materials and is connected to the end effector of the multi-axis robot by bolts or other fasteners, providing a stable mounting base for subsequent lifting and rotating mechanisms. The lifting cylinder 42 is an actuator that drives a piston rod to perform linear reciprocating motion using compressed air. In this embodiment, the lifting cylinder 42 is mounted on the first fixed plate 41, and its function is to provide vertical lifting motion, enabling the suction jig 45 to accurately descend to grasp the battery cell or rise to detach the battery cell, thereby realizing the picking and placing operation of the battery cell. The second fixing plate 43 is mounted on the lifting cylinder 42 and is driven by the lifting cylinder 42 to perform lifting and lowering movements. This second fixing plate 43 serves as an intermediate component connecting the lifting cylinder 42 and the rotating cylinder 44, ensuring that the rotating cylinder 44 and its suction fixture 45 can move vertically with the lifting cylinder 42. The rotating cylinder 44 is mounted on the second fixing plate 43, and its main function is to provide rotational movement. Through pneumatic control, the drive shaft of the rotating cylinder 44 can achieve precise rotation angle control; particularly in this embodiment, it is driven to rotate 180 degrees to achieve complete flipping of the battery cell. The suction fixture 45 is mounted on the drive shaft of the rotating cylinder 44 and is driven by the rotating cylinder 44 to rotate 180 degrees. The suction fixture 45 typically employs a vacuum suction cup or other flexible clamping mechanism for direct contact and stable suction of the battery cell. Its design aims to ensure that the battery cell is not damaged during gripping and flipping and can maintain a stable posture.

[0080] Through the above technical solution, the flipping device 40 uses a multi-axis robot as the core actuator, combined with a lifting cylinder 42 and a rotating cylinder 44, to achieve flexible and precise operation of the battery cell in three-dimensional space. The multi-axis robot provides high-degree-of-freedom motion capabilities, enabling it to accurately pick up the battery cell from the magnetic levitation carrier mover 12 and move it to the flipping position. The lifting cylinder 42 ensures that the suction fixture 45 can smoothly contact and detach from the battery cell, avoiding impact and damage. The rotating cylinder 44 precisely controls the suction fixture 45 to flip 180 degrees, exposing the other surface of the battery cell for second-surface laser engraving. The use of the suction fixture 45 ensures the stability and safety of the battery cell during the gripping and flipping process. This integrated flipping device 40 design significantly improves the automation, accuracy, and efficiency of battery cell flipping, effectively solving problems such as inaccurate positioning, unstable flipping, or battery cell damage that may exist in traditional flipping methods, thereby ensuring the overall production quality and operational reliability of the laser engraving automatic line.

[0081] In one embodiment of this utility model, the laser engraving automatic line based on the 6D magnetic levitation system further includes a first CCD device and a second CCD device. The magnetic levitation stator 11 is also provided with a first detection area 115 and a second detection area 116. The first detection area 115 is located between the feeding area 111 and the first laser engraving area 112, and the second detection area 116 is arranged adjacent to the first laser engraving area 112 and the flipping area 113. The first CCD device is arranged adjacent to the first detection area 115, and the first CCD device 60 is used to detect the battery cell before the first laser engraving device 30 engraves it; the second CCD device is arranged adjacent to the second detection area 116, and the second CCD device 70 is used to detect the battery cell after the first laser engraving device 30 engraves it.

[0082] Both the first and second CCD devices belong to the category of visual inspection systems. Their core function is to perform non-contact inspection of the surface features, positional accuracy, or laser engraving effects of a target object (i.e., the battery cell) using optical imaging and image processing technology. Specifically, a CCD device typically includes a CCD camera, a light source, an image acquisition card, and image processing software. The CCD camera is responsible for capturing images of the battery cell, the light source provides uniform and stable illumination to ensure image quality, and the image processing software analyzes the captured images to identify preset defects, measure dimensions, or verify locations.

[0083] The first detection area 115 and the second detection area 116 are specially designated spaces on the magnetic levitation stator 11, used to support the battery cell and cooperate with the CCD device for detection. The arrangement of these areas ensures that the battery cell can stably remain in the detection position at a specific production stage, so that the CCD device can accurately capture images. The first detection area 115 is located between the loading area 111 and the first laser engraving area 112, and is designed to perform pre-inspection of the battery cell before laser engraving; the second detection area 116 is arranged adjacent to the first laser engraving area 112 and the flipping area 113, and is designed to perform quality inspection of the battery cell after the first laser engraving.

[0084] The first CCD device inspects the battery cell before the first laser engraving device 30 begins laser engraving. Its main purpose is to verify the cell's positioning, correct orientation, and the presence of surface defects that could affect laser engraving quality (such as scratches or stains). By inspecting before laser engraving, defective cells can be identified and removed promptly, or their position adjusted, thus avoiding ineffective laser engraving on substandard products and reducing material waste and production costs.

[0085] The second CCD device inspects the battery cell after the first laser engraving device (30 lasers) has performed the engraving. Its main function is to evaluate the quality of the first laser engraving. This includes checking the integrity, clarity, and positional accuracy of the laser-engraved pattern, as well as the presence of defects such as burns or blurring. Real-time inspection after laser engraving allows for rapid feedback on the engraving effect, facilitating timely adjustments to laser engraving parameters, ensuring product quality meets requirements, and providing qualified semi-finished products for subsequent flipping and second laser engraving processes.

[0086] By introducing a first CCD device and a second CCD device, respectively positioned in the first detection area 115 and the second detection area 116, this invention achieves key inspections of the battery cell before and after the first laser engraving. Specifically, the first CCD device performs pre-inspection of the battery cell between the loading area 111 and the first laser engraving area 112, effectively identifying positioning deviations or surface defects, thereby avoiding laser engraving on unqualified or incorrectly positioned battery cells, significantly reducing scrap rate and production costs. Subsequently, the second CCD device performs quality inspection on the battery cell with the first surface laser engraving completed between the first laser engraving area 112 and the flipping area 113, promptly detecting potential quality problems during the laser engraving process, such as unclear patterns or positional misalignments, thus providing real-time feedback for adjusting laser engraving parameters and ensuring the quality of the first surface laser engraving. This strategy of inspection before and after key processes makes the quality control of the entire laser engraving process more refined and intelligent, improving the automation level of the production line and the product qualification rate, while reducing the need for manual inspection and potential human error.

[0087] In some embodiments of this invention, the magnetic levitation stator 11 is further provided with a third detection area 117 and a fourth detection area 118, and also includes a third CCD device and a fourth CCD device. The third detection area 117 is located between the flipping area 113 and the second laser-engraved area 114, while the fourth detection area 118 is adjacent to the second laser-engraved area 114. The third CCD device is adjacent to the third detection area 117 and is used to detect the battery cell before the second laser-engraved device 50 performs laser engraving. The fourth CCD device is adjacent to the fourth detection area 118 and is used to detect the battery cell after the second laser-engraved device 50 performs laser engraving.

[0088] The third and fourth CCD devices function similarly to the first and second CCD devices. By introducing these devices and performing detection in the third detection area 117 and the fourth detection area 118 respectively, this invention significantly enhances the comprehensive quality control capabilities of the automated laser engraving line during the double-sided laser engraving process of battery cells. The third CCD device detects the battery cell before the second laser engraving, enabling timely detection and correction of positioning deviations, surface damage, or residual defects from the first laser engraving that may result from the flipping operation. This prevents defective products from being sent to the second laser engraving stage, effectively reducing resource waste in subsequent processing. The fourth CCD device detects the battery cell after the second laser engraving, providing comprehensive verification of the final quality of the second laser engraving, ensuring the accuracy, integrity, and clarity of the laser-engraved pattern, thereby guaranteeing the final product's pass rate. This phased, comprehensive detection strategy makes the quality control of the entire laser engraving process more refined and intelligent, greatly improving production efficiency and product reliability, and reducing scrap rates and rework costs.

[0089] In such Figure 6 In the embodiments shown, the first CCD device 60, the second CCD device 70, the third CCD device 80, and the fourth CCD device 90 each include a CCD bracket 61, a camera adjustment assembly 62, a detection camera 63, and a coaxial light source 64. The camera adjustment assembly 62 is disposed on the upper end of the CCD bracket 61, and the detection camera 63 is disposed on the upper end of the camera adjustment assembly 62. The coaxial light source 64 is disposed on the lower end of the camera adjustment assembly 62 and is located below the detection camera 63.

[0090] Specifically, the CCD bracket 61, as the structural foundation of the entire CCD device, primarily provides stable support and a fixed mounting platform. This bracket is typically made of high-rigidity materials to ensure that the positions of the inspection camera 63 and the light source do not shift due to vibration or external interference during equipment operation. Its design should consider ease of installation and adaptability to the surrounding environment; for example, it can be designed as a height- or angle-adjustable structure for deployment and adjustment on different production lines. The camera adjustment assembly 62 is a key component for achieving precise alignment and focusing of the inspection camera 63. This assembly typically includes multi-dimensional adjustment mechanisms, such as an XYZ three-axis translation mechanism for adjusting the camera's position in the horizontal and vertical directions; it can also include pitch, yaw, and roll adjustment mechanisms for fine-tuning the camera's shooting angle and attitude. Through these adjustment mechanisms, it is ensured that the field of view of the inspection camera 63 accurately covers the area to be inspected, and that the image sensor maintains optimal focal length and alignment with the inspected surface, thereby acquiring clear, distortion-free images. The inspection camera 63 is the core component for capturing images of the cell surface. The camera typically uses an industrial-grade high-resolution camera, possessing high-speed image acquisition capabilities and good image quality. Its performance parameters, such as resolution, frame rate, sensitivity, and shutter speed, are selected based on specific inspection requirements. The inspection camera 63 connects to an image processing system to transmit the captured image data to the backend for analysis and judgment. The coaxial light source 64 is a key component providing uniform illumination for the inspection camera 63. Its characteristic is that the light is parallel to the camera's optical axis, projecting onto the surface of the object being inspected from around the camera lens or through a beam splitter. This illumination method effectively eliminates shadows on the object's surface, making it particularly suitable for inspecting battery cells with reflective properties or indistinct surface textures. The coaxial light source 64 is typically implemented using an LED array or fiber optic light guide, and its brightness is adjustable to adapt to the inspection requirements of different materials and surface conditions, ensuring that the inspection camera 63 can capture clear, high-contrast, glare-free images.

[0091] Through the above technical solution, the first CCD device 60, the second CCD device 70, the third CCD device 80, and the fourth CCD device 90 are designed with a structure including a CCD bracket 61, a camera adjustment assembly 62, a detection camera 63, and a coaxial light source 64. This effectively solves the stability, precise alignment, and uniform illumination problems that CCD devices may face when acquiring high-quality image data in automated cell laser engraving lines. The CCD bracket 61 provides a robust and stable foundation for the entire detection system, ensuring the long-term stability of the detection position. The camera adjustment assembly 62 allows operators to make fine, multi-dimensional adjustments to the detection camera 63, enabling the camera to be precisely aligned with the area to be detected and obtain the optimal focal length and shooting angle, greatly improving the accuracy of image acquisition. The detection camera 63 is responsible for capturing high-resolution images, providing a reliable data source for subsequent image analysis. The coaxial light source 64 provides uniform, shadowless illumination, effectively avoiding image quality degradation caused by uneven ambient light or reflections from the cell surface, ensuring image clarity and contrast. This integrated design enables stable, efficient, and accurate detection of cell surface quality and laser engraving effect at various key inspection points, such as cell loading, before and after the first laser engraving, as well as before and after flipping and the second laser engraving. This significantly improves the detection accuracy and product quality control level of the entire laser engraving automated line.

[0092] In one embodiment of this utility model, the laser engraving automatic line based on the 6D magnetic levitation system further includes a feeding device 100. The magnetic levitation stator 11 is also provided with a feeding area 119, which is adjacent to the loading area 111 and the fourth detection area 118. The feeding device 100 is adjacent to the feeding area 119, and the feeding device 100 is used to feed the laser-engraved battery cells from the carrier mover 12.

[0093] Specifically, the unloading device 100 is a mechanism used to remove the laser-engraved battery cells from the carrier mover 12. It can be implemented in various ways, such as by using a robotic arm, a vacuum suction cup, or a push rod. The robotic arm method typically involves a multi-jointed robot equipped with grippers at its end, capable of precisely grasping the battery cell and placing it in a designated location, such as a conveyor belt or a material box. The vacuum suction cup method uses a vacuum pump to generate negative pressure, using suction cups to attract and transfer the battery cell. The push rod method uses a retractable push rod to push the battery cell out of the carrier mover 12. The design of these unloading devices 100 should ensure that the battery cells are not damaged during the unloading process and can seamlessly integrate with the magnetic levitation transmission system and subsequent packaging or inspection processes.

[0094] The unloading area 119 is a specific space on the magnetically levitated stator 11, dedicated to the unloading operation of battery cells. This area is designed to provide the unloading device 100 with a fixed, operable working range, ensuring the stability and accuracy of the unloading process. The unloading area 119 is adjacent to the loading area 111 and the fourth inspection area 118. This layout helps optimize the overall flow path of the production line, reducing the ineffective travel distance of the carrier mover 12, thereby improving production efficiency. For example, after all laser engraving and inspection of the battery cell has been completed, the carrier mover 12 can move directly to the unloading area 119 for the unloading device 100 to pick it up. The carrier mover 12 can then immediately return to the loading area 111 to receive new battery cells, forming an efficient closed-loop production process.

[0095] By introducing the unloading device 100 and the unloading area 119, this invention effectively solves the problem of removing laser-engraved battery cells from the carrier mover 12. Specifically, after the battery cell completes laser engraving on the first surface, flipping, laser engraving on the second surface, and all necessary inspections (including inspections by the first, second, third, and fourth CCD devices) on the carrier mover 12, the carrier mover 12 is driven to the preset unloading area 119. In this area, the unloading device 100 can accurately remove the laser-engraved battery cell from the carrier mover 12 and transfer it to subsequent processes or a collection container. This design ensures fully automated operation of the entire laser engraving automatic line, completing the entire process of battery cell loading / unloading and laser engraving inspection without manual intervention, significantly improving production efficiency and automation level. Meanwhile, the adjacent arrangement of the unloading area 119 with the loading area 111 and the fourth detection area 118 optimizes the running path of the carrier mover 12, shortens the time for empty return to the loading area 111, and further improves the utilization rate of the equipment and the production cycle.

[0096] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. Similarly, for the sake of brevity and to aid in understanding one or more aspects of the invention, in the description of exemplary embodiments of the present invention above, various features of the embodiments of the present invention are sometimes grouped together in a single embodiment, figure, or description thereof. The claims, which follow the detailed description, are hereby expressly incorporated into that detailed description, wherein each claim itself constitutes a separate embodiment of the present invention.

[0097] Those skilled in the art will understand that the modules in the device of the embodiment can be adaptively changed and placed in one or more devices different from that embodiment. Modules, units, or components in the embodiment can be combined into a single module, unit, or component, and further, they can be divided into multiple sub-modules, sub-units, or sub-components, except that at least some of such features and / or processes or units are mutually exclusive.

[0098] It should be noted that the above embodiments are illustrative of the present invention and not restrictive of it, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims listing several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be construed as limiting the order of execution.

Claims

1. A laser engraving automated line based on a 6D magnetic levitation system, characterized in that, include: The magnetic levitation transmission device (10) includes a magnetic levitation stator (11) and a carrier mover (12), wherein the carrier mover (12) is disposed above the magnetic levitation stator (11) and is driven by the magnetic levitation stator (11) to perform displacement; A feeding device (20) is provided at the first end of the magnetic levitation stator (11), and the feeding device (20) is used to feed the battery cell onto the carrier mover (12); At least one first laser engraving device (30) is disposed on the first side of the magnetic levitation stator (11) for laser engraving the first surface of the battery cell that has moved to the lower side of the first laser engraving device (30); A flipping device (40) is provided at the second end of the magnetically levitated stator (11). The flipping device (40) is used to flip the battery cell that has moved to the bottom of the flipping device (40) in the vertical direction. And at least one second laser engraving device (50) is disposed on the second side of the magnetic levitation stator (11), the second laser engraving device (50) being used to laser engrave the second surface of the battery cell that has moved below the first laser engraving device (30).

2. The laser engraving automated line based on a 6D magnetic levitation system according to claim 1, characterized in that, The carrier mover (12) includes a magnetic levitation base plate (121) and a fixing component (122) disposed on the magnetic levitation base plate (121). The fixing component (122) is used to fix the battery cell and moves on the magnetic levitation stator under the magnetic force of the magnetic levitation base plate (121) and the magnetic levitation stator.

3. The laser engraving automated line based on a 6D magnetic levitation system according to claim 2, characterized in that, The fixing component (122) includes a fixing bracket (123), a first positioning plate (124), a second positioning plate (125), a first movable plate (126), and a second movable plate (127). The first positioning plate (124) and the second positioning plate (125) are arranged adjacently above the fixing bracket (123). The first movable plate (126) and the second movable plate (127) are movably connected above the fixing bracket (123) by a drive motor or a drive cylinder. The first movable plate (126) is arranged opposite to the first positioning plate (124), and the second movable plate (127) is arranged opposite to the second positioning plate (125). The first positioning plate (124), the second positioning plate (125), the first movable plate (126), and the second movable plate (127) enclose a fixing space for fixing the battery cell.

4. The laser engraving automated line based on a 6D magnetic levitation system according to claim 1, characterized in that, The magnetic levitation stator (11) is provided with a feeding area (111), a first laser engraving area (112), a flipping area (113), and a second laser engraving area (114). The feeding device (20) is arranged adjacent to the feeding area (111), the first laser engraving device (30) is arranged adjacent to the first laser engraving area (112), the flipping device (40) is arranged adjacent to the flipping area (113), and the second laser engraving device (50) is arranged adjacent to the second laser engraving area (114). The carrier mover (12) moves sequentially along the feeding area (111), the first laser engraving area (112), the flipping area (113), and the second laser engraving area (114) under the drive of the magnetic levitation stator (11).

5. The laser engraving automated line based on a 6D magnetic levitation system according to claim 4, characterized in that, The first laser engraving device (30) and the second laser engraving device (50) both include a laser engraving frame (31), a laser (32) and a laser head (33). The laser (32) is located on the upper end of the laser engraving frame (31), and the laser (32) is connected to the laser head (33). The laser head (33) is located above the first laser engraving area (112) or the second laser engraving area (114).

6. The laser engraving automated line based on a 6D magnetic levitation system according to claim 1, characterized in that, The flipping device (40) includes a multi-axis robot, a first fixed plate (41), a lifting cylinder (42), a second fixed plate (43), a rotary cylinder (44), and a suction fixture (45). The first fixed plate (41) is disposed on the drive end of the multi-axis robot. The lifting cylinder (42) is disposed on the first fixed plate (41). The second fixed plate (43) is disposed on the lifting cylinder (42) and is driven to lift and lower by the lifting cylinder (42). The rotary cylinder (44) is disposed on the second fixed plate (43). The suction fixture (45) is disposed on the drive shaft of the rotary cylinder (44) and is driven to rotate 180 degrees by the rotary cylinder (44).

7. The laser engraving automated line based on a 6D magnetic levitation system according to claim 4, characterized in that, It also includes a first CCD device and a second CCD device; the magnetic levitation stator (11) is also provided with a first detection area (115) and a second detection area (116), the first detection area (115) is located between the feeding area (111) and the first laser engraving area (112), and the second detection area (116) is arranged adjacent to the first laser engraving area (112) and the flipping area (113); the first CCD device is arranged adjacent to the first detection area (115), and the first CCD device (60) is used to detect the battery cell before the first laser engraving device (30) engraves it; the second CCD device is arranged adjacent to the second detection area (116), and the second CCD device (70) is used to detect the battery cell after the first laser engraving device (30) engraves it.

8. The laser engraving automated line based on a 6D magnetic levitation system according to claim 7, characterized in that, It also includes a third CCD device and a fourth CCD device; the magnetic levitation stator (11) is also provided with a third detection area (117) and a fourth detection area (118), the third detection area (117) is located between the flipping area (113) and the second laser engraving area (114), and the fourth detection area (118) is arranged adjacent to the second laser engraving area (114); the third CCD device is arranged adjacent to the third detection area (117), and the third CCD device (80) is used to detect the cell before the second laser engraving device (50) engraves it; the fourth CCD device is arranged adjacent to the fourth detection area (118), and the fourth CCD device (90) is used to detect the cell after the second laser engraving device (50) engraves it.

9. The laser engraving automated line based on a 6D magnetic levitation system according to claim 8, characterized in that, The first CCD device (60), the second CCD device (70), the third CCD device (80), and the fourth CCD device (90) each include a CCD bracket (61), a camera adjustment assembly (62), a detection camera (63), and a coaxial light source (64). The camera adjustment assembly (62) is located at the upper end of the CCD bracket (61), and the detection camera (63) is located at the upper end of the camera adjustment assembly (62). The coaxial light source (64) is located at the lower end of the camera adjustment assembly (62) and below the detection camera (63).

10. The laser engraving automated line based on a 6D magnetic levitation system according to claim 9, characterized in that, It also includes a feeding device (100); the magnetic levitation stator (11) is also provided with a feeding area (119), the feeding area (119) is arranged adjacent to the feeding area (111) and the fourth detection area (118); the feeding device (100) is arranged adjacent to the feeding area (119), and the feeding device (100) is used to feed the laser-engraved battery cell from the carrier mover (12).

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