A 6D magnetic levitation system-based laser etching machine

Abstract

The utility model discloses an embodiment relates to a kind of based on 6D magnetic levitation system's laser etching machine, and the utility model is driven by magnetic levitation transmission mechanism to carry out displacement mobile, and it is combined first laser etching area, second laser etching area, turnover area and detection area, and corresponding laser etching mechanism, turnover mechanism and detection mechanism, realize the high-precision transmission of electric core, double-sided laser etching and real-time detection, to solve the problem of low transmission accuracy, big mechanical impact and insufficient flexibility in the prior art, improve electric core transmission accuracy and stability, reduce mechanical impact, enhance production line flexibility.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to a laser engraving machine 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 machine based on a 6D magnetic levitation system to solve the defects of insufficient transmission accuracy and mechanical impact risk of existing transmission mechanisms.

[0005] In a first aspect, this utility model provides a laser engraving machine based on a 6D magnetic levitation system, comprising:

[0006] A magnetic levitation transmission mechanism is provided with a magnetic levitation stator and a carrier mover. The carrier mover is located above the magnetic levitation stator and is driven to move by the magnetic levitation stator. The magnetic levitation stator is provided with a first laser engraving area, a second laser engraving area, a flipping area and a detection area.

[0007] At least one first laser engraving mechanism is disposed adjacent to the first laser engraving area, and the first laser engraving mechanism is used to laser engrave the first surface of the battery cell that has moved to the lower part of the first laser engraving mechanism.

[0008] A flipping mechanism is disposed adjacent to the flipping area, and the flipping mechanism is used to flip the battery cell that has been moved to the bottom of the flipping mechanism in the vertical direction;

[0009] At least one second laser engraving mechanism is disposed adjacent to the second laser engraving area, and the second laser engraving mechanism is used to laser engrave the second surface of the battery cell that has been moved to the lower part of the second laser engraving mechanism;

[0010] The system includes a testing mechanism, which is located adjacent to the testing area. The testing mechanism is used to perform CCD testing on the battery cell before and / or after the first laser engraving mechanism and / or before and / or after the second laser engraving mechanism.

[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, both the first laser engraving mechanism and the second laser engraving mechanism 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.

[0014] In some optional embodiments, the number of the first laser engraving mechanism is 7, the number of the second laser engraving mechanism is 3, and the first laser engraving mechanism and the second laser engraving mechanism are arranged opposite to each other along the magnetic levitation transmission mechanism.

[0015] In some optional embodiments, the flipping mechanism 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, the detection area includes a first detection area, a second detection area, a third detection area, and a fourth detection area. The first detection area and the fourth detection area are located at the first end of the magnetically levitated stator. The first detection area is located on the same side and adjacent to the first laser-engraved area, and the first detection area is located on the same side and adjacent to the second laser-engraved area. The second detection area is located at the second end of the magnetically levitated stator and is located on the same side and adjacent to the flipping area. The third detection area is located between the flipping area and the second laser-engraved area.

[0017] In some optional embodiments, the testing mechanism includes a first testing mechanism, a second testing mechanism, a third testing mechanism, and a fourth testing mechanism, wherein the first testing mechanism is arranged adjacent to the first testing area, the second testing mechanism is arranged adjacent to the second testing area, the third testing mechanism is arranged adjacent to the third testing area, and the fourth testing mechanism is arranged adjacent to the fourth testing area.

[0018] In some optional embodiments, the first detection mechanism, the second detection mechanism, the third detection mechanism and the fourth detection mechanism each include a CCD bracket, a first camera adjustment assembly, a first detection camera and a first coaxial light source. The camera adjustment assembly is vertically disposed on the upper end of the CCD bracket, and the first detection camera is disposed on the upper end of the first camera adjustment assembly. The first coaxial light source is disposed on the lower end of the first camera adjustment assembly and located below the detection camera, so that the first detection camera can acquire image data of the upper surface of the battery cell from above.

[0019] In some optional embodiments, the first detection mechanism further includes a second camera adjustment component, a second detection camera, and a second coaxial light source. The second camera adjustment component is arranged laterally on the CCD bracket, and the second detection camera is arranged at one end of the second camera adjustment component. The second coaxial light source is arranged at the other end of the second camera adjustment component and located on one side of the detection camera, so that the second detection camera can acquire image data of the side of the battery cell from the side.

[0020] This invention provides a laser engraving machine based on a 6D magnetic levitation system. Its advantages are as follows: This invention drives the carrier mover to move by a magnetic levitation transmission mechanism, and combines a first laser engraving area, a second laser engraving area, a flipping area, and a detection area, as well as corresponding laser engraving mechanisms, flipping mechanisms, and detection mechanisms, to achieve high-precision transmission, double-sided laser engraving, and real-time detection of battery cells. This solves the problems of low transmission accuracy, large mechanical impact, and insufficient flexibility in the prior art, improves the transmission accuracy and stability of battery cells, reduces mechanical impact, and enhances the flexibility of the production line.

[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 a laser engraving machine based on a 6D magnetic levitation system according to an embodiment of the present invention is shown;

[0024] Figure 2 A perspective view of a magnetic levitation transmission mechanism according to an embodiment of the present invention is shown;

[0025] Figure 3 A partial schematic diagram of the magnetic levitation transmission mechanism according to an embodiment of the present invention is shown;

[0026] Figure 4 A top view schematic diagram of a magnetically levitated stator according to an embodiment of the present invention is shown;

[0027] Figure 5 A three-dimensional schematic diagram of the first laser engraving mechanism according to an embodiment of the present invention is shown;

[0028] Figure 6 A partial perspective view of the flipping mechanism according to an embodiment of the present invention is shown;

[0029] Figure 7 A first perspective schematic diagram of a first detection mechanism according to an embodiment of the present invention is shown;

[0030] Figure 8 A second perspective view of the first detection mechanism according to an embodiment of the present invention is shown.

[0031] Figure label:

[0032] 10. Magnetic levitation transmission mechanism; 11. Magnetic levitation stator; 111. First laser-engraved area; 112. Flipping area; 113. Second laser-engraved area; 114. First detection area; 115. Second detection area; 116. Third detection area; 117. Fourth detection 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;

[0033] 20. First laser engraving mechanism; 21. Laser engraving machine frame; 22. Laser; 23. Laser head;

[0034] 30. Tilting mechanism; 31. First fixed plate; 32. Lifting cylinder; 33. Second fixed plate; 34. Rotary cylinder; 35. Suction fixture;

[0035] 40. Second laser engraving unit;

[0036] 50. First detection mechanism; 51. CCD bracket; 52. First camera adjustment assembly; 53. First detection camera; 54. First coaxial light source; 55. Second camera adjustment assembly; 56. Second detection camera; 57. Second coaxial light source;

[0037] 60. Second testing agency;

[0038] 70. Third-party testing institutions;

[0039] 80. The fourth testing agency. 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 a laser engraving machine based on a 6D magnetic levitation system. The laser engraving machine based on the 6D magnetic levitation system specifically includes:

[0043] The magnetic levitation transmission mechanism 10 is provided with a magnetic levitation stator 11 and a carrier mover 12. The carrier mover 12 is disposed above the magnetic levitation stator 11 and is driven by the magnetic levitation stator 11 to move. The magnetic levitation stator 11 is provided with a first laser engraving area 111, a second laser engraving area 113, a flipping area 112 and a detection area.

[0044] At least one first laser engraving mechanism 20 is disposed adjacent to the first laser engraving area 111. The first laser engraving mechanism 20 is used to laser engrave the first surface of the battery cell that has moved to the lower part of the first laser engraving mechanism 20.

[0045] A flipping mechanism 30 is disposed adjacent to the flipping area 112. The flipping mechanism 30 is used to flip the battery cell that has been moved to the lower part of the flipping mechanism 30 in the vertical direction.

[0046] At least one second laser engraving mechanism 40 is disposed adjacent to the second laser engraving area 113, and the second laser engraving mechanism 40 is used to laser engrave the second surface of the battery cell that has moved to the lower part of the second laser engraving mechanism 40.

[0047] The system includes a testing mechanism, which is located adjacent to the testing area. The testing mechanism is used to perform CCD testing on the battery cell before and / or after laser engraving by the first laser engraving mechanism 20 and / or before and / or after laser engraving by the second laser engraving mechanism 40.

[0048] In this embodiment, the 6D magnetic levitation system is a technology that uses magnetic force to levitate, position, and control the motion of an object in six degrees of freedom (three translational degrees of freedom in X, Y, and Z, and three rotational degrees of freedom around the X, Y, and Z axes). Its core lies in precisely controlling the magnetic field to enable the object to achieve high-precision, high-dynamic-response motion without mechanical contact. The magnetic levitation transmission mechanism 10 is a material conveying device built based on the 6D magnetic levitation system. Its main function is to use magnetic force to levitate the carrier mover 12 above the magnetic levitation stator 11 and move it non-contactly along a preset path, thereby avoiding the friction, wear, and impact caused by traditional mechanical transmission methods.

[0049] The magnetic levitation stator 11 is the fixed part of the magnetic levitation transmission mechanism 10, and is typically composed of a series of electromagnetic coils and magnetic materials. It generates a controlled magnetic field by energizing the stator. This magnetic field interacts with the magnetic elements on the carrier mover 12, providing levitation force, driving force, and guiding force, and defining the processing path and area division of the battery cell.

[0050] The carrier mover 12 is the moving part of the magnetic levitation transmission mechanism 10, used to carry and fix the battery cell to be processed. Under the action of the magnetic field generated by the magnetic levitation stator 11, it achieves precise levitation and displacement, transferring the battery cell from one processing area to another.

[0051] This application provides a laser engraving machine 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.

[0052] Specifically, the laser engraving machine includes a magnetic levitation transmission mechanism 10. This mechanism 10 can be composed of a series of electromagnet arrays integrated within a magnetic levitation stator 11. When the electromagnet arrays are energized, they generate a controlled magnetic field. A carrier mover 12, serving as a platform carrying the battery cell, can have a permanent magnet or induction coil at its bottom. Under the influence of the magnetic field generated by the magnetic levitation stator 11, the carrier mover 12 is driven to levitate and displace above the stator. For example, by adjusting the current magnitude and phase of different electromagnets, the carrier mover 12 can be precisely moved along a preset path, thereby transporting the battery cell from one workstation to another. The magnetic levitation stator 11 can be divided into multiple functional areas, such as a first laser engraving area 111, a second laser engraving area 113, a flipping area 112, and a detection area, each corresponding to a position required by the battery cell at different processing stages.

[0053] At least one first laser engraving mechanism 20 is provided adjacent to the first laser engraving area 111. This first laser engraving mechanism 20 can be a standalone laser processing unit, containing a laser generator and a focusing lens. When the battery cell is transported by the carrier mover 12 to the area below the first laser engraving mechanism 20, the laser beam emitted by the laser generator acts on the first surface of the battery cell through the focusing lens, completing the preset laser engraving task. For example, a CO2 laser 22 or a fiber laser 22 can be used to encode or strip the insulation layer from the surface of the battery cell.

[0054] A flipping mechanism 30 is disposed adjacent to the flipping area 112. This flipping mechanism 30 can be a robotic arm with a gripping or adsorption device at its end. When the battery cell moves below the flipping mechanism 30, the robotic arm can extend, grip or adsorb the battery cell, and then, through the rotational joint of the robotic arm, flip the battery cell 180 degrees vertically so that its second surface faces upwards. After flipping, the robotic arm repositions the battery cell onto the carrier mover 12 for subsequent processing.

[0055] At least one second laser engraving mechanism 40 is provided adjacent to the second laser engraving area 113. The function of this second laser engraving mechanism 40 is similar to that of the first laser engraving mechanism 20, and it can also be a separate laser processing unit. When the flipped battery cell is transported to the area below the second laser engraving mechanism 40, the second laser engraving mechanism 40 performs laser engraving on the second surface of the battery cell. For example, batch numbers or QR codes can be marked on the other side surface of the battery cell.

[0056] In addition, an inspection mechanism is set up adjacent to the inspection area. This inspection mechanism can be a vision inspection system, which includes one or more industrial cameras and a light source. This mechanism is used for CCD inspection of the battery cell at different stages of laser engraving. For example, the original surface of the battery cell can be inspected before laser engraving by the first laser engraving mechanism 20 to confirm its condition; the laser engraving effect on the first surface can be inspected after laser engraving by the first laser engraving mechanism 20; the surface of the flipped battery cell can be inspected before laser engraving by the second laser engraving mechanism 40; and the final laser engraving effect on the second surface can be inspected after laser engraving by the second laser engraving mechanism 40. Through these inspections, the processing quality can be monitored in real time, and defective products can be promptly identified and rejected.

[0057] The laser engraving machine of this application, by employing a 6D magnetic levitation transmission mechanism 10, achieves non-contact, high-precision transmission of battery cells in the laser engraving production line, effectively avoiding the decrease in positioning accuracy and the risk of mechanical collisions caused by traditional belt conveyors. This system ensures smooth and precise movement of the battery cells between the first laser engraving area 111, the second laser engraving area 113, the flipping area 112, and the detection area, significantly improving the yield rate and production stability of laser engraving processing, and increasing the efficiency of changing between battery cells of different specifications, thereby meeting the demands of lithium battery manufacturing for highly automated and flexible production.

[0058] Example 2

[0059] Based on Embodiment 1, the third embodiment of the laser engraving machine based on the 6D magnetic levitation system of this utility model is provided to further illustrate Embodiment 1.

[0060] In such Figures 2-3 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 moves on the magnetic levitation stator 11 under the magnetic force of the magnetic levitation base plate 121 and the magnetic levitation stator 11.

[0061] Through the above technical solution, this application effectively solves the problems of swaying and displacement that may occur in the battery cell during magnetic levitation transmission. Specifically, the magnetic levitation base plate 121, as the core load-bearing part of the carrier mover 12, works in conjunction with the magnetic levitation stator 11 to provide stable and precise 6D motion capability for the entire carrier mover 12. On this basis, the fixing component 122 is cleverly set on the magnetic levitation base plate 121. It is specifically designed to fix the battery cell and can reliably clamp or attract the battery cell, ensuring that the battery cell maintains a stable position and attitude during high-speed transmission, acceleration, deceleration, and complex operations such as laser engraving and flipping. This design allows the battery cell to be precisely positioned below the first laser engraving mechanism 20, the flipping mechanism 30, the second laser engraving mechanism 40, and the detection mechanism, thereby ensuring the accuracy of laser engraving, the reliability of flipping, and the accuracy of detection. Meanwhile, since the fixed component 122 moves together with the magnetic levitation base plate 121 on the magnetic levitation stator 11, there is no mechanical contact during the entire transmission process, which further improves the stability and efficiency of the system, reduces the potential risk of damage to the battery cell, and significantly improves the overall performance and production yield of the laser engraving machine.

[0062] In such Figure 3 In the illustrated embodiment, 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] Specifically, the fixing bracket 123 is the structural foundation of the fixing assembly 122. It is typically made of high-strength materials (such as aluminum alloy, stainless steel, or engineering plastics) and is designed to provide a stable support and mounting platform to support the battery cell and secure other clamping components. The first positioning plate 124 and the second positioning plate 125 are fixing clamping elements. They are precisely mounted above the fixing bracket 123 and arranged adjacent to each other, together forming part of the fixing space. These positioning plates typically have flat or specifically shaped surfaces to provide an initial, fixed contact surface and positioning reference for the battery cell.

[0064] The first movable plate 126 and the second movable plate 127 are movable clamping elements, also positioned above the fixed bracket 123, and respectively opposite to the first positioning plate 124 and the second positioning plate 125. This relative arrangement allows the movable plates to work in conjunction with the positioning plates to clamp the battery cell. The movable plates are movably connected to the fixed bracket 123 via a drive motor or a drive cylinder. When a drive motor is used, it is usually used in conjunction with a lead screw, rack and pinion, or linkage mechanism to achieve precise and controllable reciprocating motion of the movable plates, thereby adjusting the size of the fixed space and applying clamping force. The drive motor can provide high-precision position control and adjustable clamping force. When a drive cylinder is used, it is usually a pneumatic or hydraulic cylinder, which drives the piston rod to extend and retract via pneumatic or hydraulic pressure, causing the movable plates to perform rapid opening and closing actions, achieving rapid clamping and release of the battery cell, and featuring simple structure and fast response speed.

[0065] Through the above technical solution, the fixing component 122 uses a fixed bracket 123 as its basic structure and cleverly combines a fixed positioning plate with a movable plate. The movable plate is precisely controlled by a drive motor or drive cylinder, allowing for flexible adjustment of the fixing space. This design not only effectively addresses the tolerance issues of battery cell dimensions, ensuring that batteries of different specifications can be securely clamped, but also provides multi-directional enclosure and fixation during the high-speed displacement of the magnetic levitation transmission mechanism 10 and laser engraving operations, greatly enhancing the positioning accuracy and stability of the battery cells, thereby significantly improving the quality and efficiency of laser engraving. Furthermore, the driving mechanism of the movable plate facilitates the automated loading and unloading of battery cells, further optimizing the production process.

[0066] In such Figure 5 In the embodiment shown, both the first laser engraving mechanism 20 and the second laser engraving mechanism 40 include a laser engraving frame 21, a laser 22 and a laser head 23. The laser 22 is disposed on the upper end of the laser engraving frame 21, the laser 22 is connected to the laser head 23, and the laser head 23 is located above the first laser engraving area 111 or the second laser engraving area 113.

[0067] The laser engraving frame 21, serving as the skeleton of the entire laser engraving system, provides a stable support platform for the laser 22 and laser head 23. This frame is typically constructed of high-strength, high-rigidity metal materials (e.g., precision-machined aluminum alloy profiles or welded steel structures) to effectively suppress vibrations generated during equipment operation and ensure the stability of laser processing. Its design fully considers the overall structural strength, seismic performance, and thermal deformation control of the equipment, thus laying the foundation for subsequent laser processing accuracy.

[0068] Laser 22 is the core component for generating high-energy laser beams. Its type can be selected according to the characteristics of the battery cell material and the requirements of the laser engraving process. For example, fiber laser 22, ultraviolet laser 22, or CO2 laser 22 can be selected. Laser 22 is responsible for providing stable and high-quality laser output. Its power, beam mode, and pulse characteristics directly affect the efficiency and effect of laser engraving.

[0069] The laser head 23 is the output actuator of the laser beam, and typically integrates precision optical components such as a focusing lens and a galvanometer scanning system. The focusing lens focuses the laser beam emitted by the laser 22 into an extremely small spot to achieve high energy density and enable fine material removal. The galvanometer system precisely controls the movement trajectory of the laser spot on the surface of the battery cell through high-speed deflecting mirrors, thereby completing complex graphic or character engraving.

[0070] Placing the laser 22 at the top of the laser engraving frame 21 offers several advantages. First, it helps shorten the laser transmission path, reducing reflections and energy loss in the optical path and improving laser energy utilization. Second, placing the heavier laser 22 at the top of the frame optimizes the equipment's center of gravity distribution, enhancing overall operational stability. Furthermore, this arrangement keeps the laser 22 away from potential smoke and debris generated in the working area, protecting it from contamination and extending its lifespan.

[0071] The laser 22 and the laser head 23 are connected via optical fiber or a free-space optical path. Fiber optic connections offer flexibility and strong anti-interference capabilities, making them suitable for scenarios requiring long-distance transmission or compact layouts. Free-space optical paths, on the other hand, are typically used in applications demanding extremely high beam quality and short transmission distances, accurately guiding the laser beam into the laser head 23 through a series of precision optical lenses.

[0072] The laser head 23 is positioned above either the first laser engraving area 111 or the second laser engraving area 113. This is crucial to ensuring that the laser beam acts perpendicularly or at a preset angle on the surface of the battery cell. This precise positioning guarantees effective focusing and uniform distribution of laser energy, thereby achieving a high-quality laser engraving effect. By adjusting the relative distance between the laser head 23 and the surface of the battery cell, the focal point of the laser can be precisely controlled to adapt to the requirements of different material thicknesses and laser engraving depths.

[0073] The above technical solution clarifies the structural composition of the first laser engraving mechanism 20 and the second laser engraving mechanism 40, both of which include a laser engraving frame 21, a laser 22, and a laser head 23. The laser 22 is positioned at the upper end of the laser engraving frame 21 and connected to the laser head 23, with the laser head 23 positioned above the laser engraving area. This structured design allows the laser 22 to be stably mounted on the robust laser engraving frame 21 and to efficiently transmit laser energy to the laser head 23 through a reliable connection. The laser head 23 is precisely positioned above the laser engraving area, ensuring that the laser beam acts on the cell surface in the best possible condition. This not only effectively solves the problem of difficulty in guaranteeing laser engraving accuracy and stability but also provides continuous, stable, and precise laser processing when the magnetic levitation transmission mechanism 10 moves the cell at high speed for laser engraving, significantly improving the quality and efficiency of laser engraving and ensuring the consistency and reliability of the laser engraving on the cell surface.

[0074] In such Figure 1 In the embodiment shown, there are 7 first laser engraving mechanisms 20 and 3 second laser engraving mechanisms 40, and the first laser engraving mechanism 20 and the second laser engraving mechanism 40 are arranged opposite to each other along the magnetic levitation transmission mechanism 10.

[0075] Through the above technical solution, this application provides an optimized solution to the potential efficiency mismatch problem in the double-sided laser engraving process of battery cells. Specifically, by configuring seven first laser engraving mechanisms 20 and three second laser engraving mechanisms 40, this application can flexibly allocate production resources according to the actual complexity and time difference of the laser engraving tasks on the first and second surfaces of the battery cell. For example, if the laser engraving task on the first surface is more time-consuming, more first laser engraving mechanisms 20 can effectively share the workload, ensuring that the dwell time of the battery cell in the first laser engraving area 111 is effectively controlled, thereby preventing this step from becoming a bottleneck of the entire production line. At the same time, a smaller number of second laser engraving mechanisms 40 can meet the needs of laser engraving on the second surface, avoiding resource redundancy. In addition, the relative arrangement of the first laser engraving mechanism 20 and the second laser engraving mechanism 40 along the magnetic levitation transmission mechanism 10 not only helps to achieve a compact equipment layout and effectively save production space, but also optimizes the transmission path of the battery cell between different laser engraving stations, reducing unnecessary transmission distance and time, thereby further improving the overall production cycle time and efficiency. This differentiated and relatively configured structure allows laser engraving machines to better adapt to actual production needs, improving the overall utilization rate of the equipment and the flexibility of the production line.

[0076] In such Figure 6In the illustrated embodiment, the flipping mechanism 30 includes a multi-axis robot, a first fixed plate 31, a lifting cylinder 32, a second fixed plate 33, a rotary cylinder 34, and a suction fixture 35. The first fixed plate 31 is disposed at the drive end of the multi-axis robot. The lifting cylinder 32 is disposed on the first fixed plate 31. The second fixed plate 33 is disposed on the lifting cylinder 32 and is driven to move up and down by the lifting cylinder 32. The rotary cylinder 34 is disposed on the second fixed plate 33. The suction fixture 35 is disposed on the drive shaft of the rotary cylinder 34 and is driven by the rotary cylinder 34 to rotate 180 degrees.

[0077] By introducing a multi-axis robot as the basic platform for the flipping mechanism 30, and combining the synergistic effect of the lifting cylinder 32 and the rotary cylinder 34, this application can achieve precise grasping, positioning, and flipping of the battery cell in three-dimensional space. The multi-axis robot provides high flexibility and programmability, enabling it to adapt to battery cells of different sizes and positions, and precisely grasp the battery cell from the magnetic levitation transmission mechanism 10. The lifting cylinder 32 ensures precise vertical height control during the grasping and placement process, avoiding interference with the battery cell or the transmission mechanism. The rotary cylinder 34 drives the suction fixture 35 to flip at a precise angle of 180 degrees, ensuring that the second surface of the battery cell is accurately aligned with the second laser engraving mechanism 40. This precise mechanical structure and control method significantly improves the accuracy, stability, and efficiency of battery cell flipping, effectively solving the limitations of the traditional flipping mechanism 30 in meeting the requirements of high-precision, high-efficiency automated laser engraving, thereby ensuring the quality of laser engraving and the smooth operation of the overall production line.

[0078] Example 3

[0079] Based on Embodiment 1 or Embodiment 2, a third embodiment of the laser engraving machine based on the 6D magnetic levitation system of this utility model is provided to further illustrate Embodiment 1 or Embodiment 2.

[0080] exist Figure 4 In the illustrated embodiment, the detection area is meticulously divided and laid out. Specifically, the detection area is divided into a first detection area 114, a second detection area 115, a third detection area 116, and a fourth detection area 117. This division aims to achieve refined, multi-point detection of the battery cell at different processing stages. These areas can be defined on the surface of the magnetic levitation stator 11 through physical markings, software definition, or the layout of a sensor array. For example, these areas can be defined by delineating different physical boundaries on the surface of the magnetic levitation stator 11, or by pre-setting the working range of each detection mechanism in the control system.

[0081] The first detection area 114 and the fourth detection area 117 are strategically located at the first end of the magnetic levitation stator 11. Concentrating the two detection areas at one end of the magnetic levitation stator 11 typically corresponds to the entry or exit point of the battery cell during the entire processing flow. This arrangement facilitates centralized detection at the beginning or end of the processing flow, such as detecting the initial state of unprocessed battery cells or performing pre-shipment inspection on the final product. The first end of the magnetic levitation stator 11 can be understood as the starting or ending point of the entire magnetic levitation transmission mechanism 10, depending on the transmission direction of the battery cell.

[0082] Simultaneously, the first detection area 114 is arranged on the same side and adjacent to the first laser-engraved area 111. This adjacent arrangement allows for immediate detection of the first surface of the battery cell before or after it enters the first laser-engraved area 111. For example, the initial surface quality or positioning of the battery cell can be detected before the first laser engraving to ensure the accuracy of the laser engraving; or the laser engraving effect can be detected immediately after the first laser engraving to promptly identify and correct problems. "On the same side" means that they are located on the same side of the transmission path of the magnetic levitation stator 11, while "adjacent" means that they are spatially closely connected, typically separated by only a short transmission distance. Furthermore, the first detection area 114 is also arranged on the same side and adjacent to the second laser-engraved area. This arrangement may mean that near the first laser-engraved area 111, there exists a "second laser-engraved area" that is on the same side and adjacent to the first detection area 114. This may be used for detection at a specific stage of the first laser engraving process or before and after auxiliary laser engraving operations related to the first laser engraving.

[0083] Furthermore, the second detection area is located at the second end of the magnetically levitated stator 11 and is disposed on the same side and adjacent to the flipping area 112. Positioning the second detection area at the second end of the magnetically levitated stator 11, on the same side and adjacent to the flipping area 112, typically means that the cell is detected after the first laser engraving is completed and the cell is about to enter the flipping phase or has already completed the flipping. For example, the quality of the first laser engraving can be detected before the cell flips, or the positioning and flipping state of the cell can be detected after the flipping to prepare for the subsequent second laser engraving. The second end of the magnetically levitated stator 11 is typically the opposite end to the first end, representing the other end point of the cell's transmission path.

[0084] Furthermore, the third detection area is located between the flipping area 112 and the second laser engraving area 113. This arrangement allows for critical intermediate detection of the cell after it has completed flipping and before it enters the second laser engraving area 113. This can be used to verify the accuracy of the flipping, the positioning of the cell, and to provide necessary calibration data for the second laser engraving, thereby ensuring the quality of the second laser engraving. The third detection area is strategically placed on the transmission path between the flipping area 112 and the second laser engraving area 113 so that the cell can be detected between these two critical processes.

[0085] By employing the aforementioned technical solution, the detection area is subdivided into a first detection area 114, a second detection area, a third detection area, and a fourth detection area 117, strategically distributed at different key locations on the magnetic levitation stator 11. This application enables multi-point, all-round quality monitoring of the battery cell throughout the entire laser engraving process. For example, by setting the first detection area 114 and the fourth detection area 117 at the first end of the magnetic levitation stator 11, initial detection or post-lasing detection can be performed before the battery cell enters the first laser engraving area 111 or near the first laser engraving area 111, ensuring sufficient preparation before processing or quality of auxiliary processes. By setting the second detection area at the second end of the magnetic levitation stator 11 and adjacent to the flipping area 112, quality verification can be performed on the battery cell when the first side laser engraving is completed and it is about to be flipped, preventing defective products from being carried into subsequent processes. Furthermore, by setting the third detection area between the flipping area 112 and the second laser engraving area 113, the flipped battery cell can be positioned and quality checked, providing accurate input for the second side laser engraving, thereby effectively avoiding second side laser engraving failure due to inaccurate flipping or defects in the first side laser engraving. This refined division and layout of inspection areas enables the system to promptly detect and correct potential problems during processing, significantly improving the precision and efficiency of laser engraving, reducing the scrap rate, and enhancing the overall automation and intelligence level of the production line.

[0086] In the above embodiments, this application further proposes to subdivide the aforementioned detection mechanism into multiple independent detection units, namely, a first detection mechanism 50, a second detection mechanism 60, a third detection mechanism 70, and a fourth detection mechanism 80. These independent detection mechanisms are hardware and software integrated systems specifically designed to perform specific detection tasks, typically including image acquisition equipment (such as a CCD camera), a light source, an image processing unit, and an interface for communication with the control system of the magnetic levitation transmission mechanism 10. Through this modular design, parallel processing and specialized division of labor for detection tasks can be achieved.

[0087] Specifically, the first inspection mechanism 50 is configured to be closely adjacent to the first inspection area 114. This adjacent arrangement ensures that the first inspection mechanism 50 can efficiently and accurately inspect the battery cells entering the first inspection area 114. For example, the first inspection mechanism 50 can be specifically responsible for the initial inspection of the battery cells to confirm whether their condition meets the requirements for subsequent laser engraving. Similarly, the second inspection mechanism 60 is configured to be adjacent to the second inspection area 115. This allows the second inspection mechanism 60 to focus on the inspection tasks of its designated area, such as inspecting the battery cells after they have passed through the flipping area 112 or before laser engraving the second surface. The third inspection mechanism 70 is configured to be adjacent to the third inspection area 116, enabling it to perform specific inspections on the battery cells located in this area. For example, this mechanism can be used to perform intermediate process inspections after the first surface laser engraving is completed, before flipping, or before the second surface laser engraving to ensure processing quality. The fourth inspection mechanism 80 is configured to be adjacent to the fourth inspection area 117, enabling it to inspect the battery cells located in this area. For example, the fourth testing agency 80 can be used to perform quality testing on the battery cells before final discharge, or to conduct a comprehensive quality assessment after the entire laser engraving process is completed.

[0088] Through the above technical solution, the testing mechanism is subdivided into multiple independent testing mechanisms—a first testing mechanism 50, a second testing mechanism 60, a third testing mechanism 70, and a fourth testing mechanism 80—each adjacent to its respective testing area, achieving distributed management and specialized execution of the testing function. This configuration allows each testing mechanism to focus on the testing task of its specific area, thereby significantly improving the efficiency and accuracy of testing. For example, when the battery cell moves on the magnetic levitation transmission mechanism 10, it can be tested by a dedicated testing mechanism in the corresponding testing area according to its different processing stages (such as before the first laser engraving, after flipping, after the second laser engraving, etc.), avoiding the time loss and configuration complexity caused by a single testing mechanism switching between different areas. In addition, this modular design also facilitates independent calibration, maintenance, and troubleshooting of different testing stages, improving the stability and maintainability of the entire laser engraving machine and ensuring the quality control of the battery cell throughout the entire processing flow.

[0089] In such Figure 7In the illustrated embodiment, the first detection mechanism 50, the second detection mechanism 60, the third detection mechanism 70, and the fourth detection mechanism 80 all include a CCD bracket, a first camera adjustment assembly 52, a first detection camera 53, and a first coaxial light source 54. The CCD bracket serves as the structural skeleton of the detection mechanism, used to securely mount and support all detection components, ensuring the stability and accuracy of the entire detection unit. It is typically made of high-strength, low-vibration materials and can be designed as a frame, column, or cantilever structure to adapt to different installation spaces and detection requirements. The first camera adjustment assembly 52 aims to provide the first detection camera 53 with precise vertical position adjustment capability. This assembly can be implemented in various forms, such as through a lead screw drive mechanism, a rack and pinion mechanism, or a cylinder-driven linear guide rail, enabling the first detection camera 53 to move smoothly in the vertical direction, thereby achieving automatic focusing or adjusting the working distance for cells of different heights to obtain clear, focused images. The first inspection camera 53 is responsible for capturing image data of the upper surface of the battery cell. It typically uses an industrial-grade CCD or CMOS camera, possessing high resolution, high frame rate, and good image quality to meet the inspection requirements for details, laser-engraved characters, or defects on the battery cell surface. It connects to the image processing unit via a data cable to transmit and analyze the acquired images. The first coaxial light source 54 provides uniform, shadowless illumination to the upper surface of the battery cell. A coaxial light source is characterized by its light rays being parallel to the camera's optical axis, effectively eliminating surface reflections and shadows, making it particularly suitable for inspecting objects with a certain degree of gloss or surface texture. It is usually composed of an LED array, with a light guide plate or beam splitter guiding the light rays in a direction coaxial with the camera lens, ensuring uniform light coverage of the entire inspection area.

[0090] Specifically, the camera adjustment assembly is vertically positioned on the upper end of the CCD bracket. This arrangement allows the first inspection camera 53 to be easily adjusted vertically to accommodate battery cells of different thicknesses or focal lengths, ensuring that the camera can always acquire images from the optimal working distance. The first inspection camera 53 is positioned on top of the first camera adjustment assembly 52, clearly defining its installation position and ensuring vertical movement via the assembly. The first coaxial light source 54 is positioned below the first camera adjustment assembly 52 and below the inspection camera; this layout is crucial for achieving coaxial illumination. With the light source below the camera and aligned with the camera's optical axis via its optical path, light can vertically illuminate the upper surface of the battery cell and reflect back to the camera, resulting in a uniform and shadow-free image. This structure enables the first inspection camera 53 to acquire image data of the upper surface of the battery cell from above.

[0091] Through the above technical solution, the CCD bracket, the first camera adjustment component 52, the first inspection camera 53, and the first coaxial light source 54 are integrated and optimized, enabling each inspection mechanism to possess efficient and accurate image acquisition capabilities. Specifically, the first camera adjustment component 52 is vertically positioned at the upper end of the CCD bracket and supports the first inspection camera 53, allowing the camera to be precisely adjusted vertically. This ensures that the first inspection camera 53 can always clearly focus on the upper surface of the battery cell with the optimal focal length and working distance under different inspection scenarios. Simultaneously, the first coaxial light source 54 is cleverly positioned at the lower end of the first camera adjustment component 52 and below the first inspection camera 53. This coaxial illumination method provides uniform, shadowless lighting, effectively avoiding problems such as reflections, shadows, or uneven brightness that may be caused by traditional side or ring light sources. It is particularly suitable for inspecting fine laser-engraved characters, scratches, or defects on the surface of the battery cell. Through this structural design, the first inspection camera 53 can stably and efficiently acquire high-quality image data of the upper surface of the battery cell from above, greatly improving the accuracy and reliability of the inspection, thereby effectively solving the technical problem of insufficient accuracy and stability of image acquisition on the upper surface of the battery cell during multi-stage inspection.

[0092] In such Figure 8 In the illustrated embodiment, the first detection mechanism 50 further includes a second camera adjustment assembly 55, a second detection camera 56, and a second coaxial light source 57. The second camera adjustment assembly 55 is laterally mounted on the CCD holder, the second detection camera 56 is located at one end of the second camera adjustment assembly 55, and the second coaxial light source 57 is located at the other end of the second camera adjustment assembly 55 and to one side of the second detection camera 56, so that the second detection camera 56 can acquire image data of the side of the battery cell from the side.

[0093] Specifically, the second camera adjustment assembly 55 is a mechanical structure used to precisely adjust the position of the second inspection camera 56. It is mounted laterally (i.e., perpendicular to the direction of movement of the magnetic levitation transmission mechanism 10) on the CCD holder and can achieve smooth movement using linear guides, lead screw drives, or rack and pinion mechanisms. Through this assembly, the second inspection camera 56 can flexibly adjust its relative distance and angle to the side of the battery cell to adapt to the inspection needs of batteries of different sizes and ensure optimal imaging field of view and clarity. The second inspection camera 56 is a vision sensor specifically designed to capture images of the side of the battery cell. It typically uses a high-resolution industrial camera equipped with a lens suitable for side imaging. It is located at one end of the second camera adjustment assembly 55; by adjusting the movement of the assembly, it can be precisely aligned with the side of the battery cell, thereby acquiring high-quality image data. The second coaxial light source 57 is a device that provides uniform, shadowless illumination for the second inspection camera 56. The coaxial light source is characterized by its light rays being parallel to the camera's optical axis, effectively reducing surface reflections and shadows, and highlighting minute defects on the side of the battery cell. It is positioned at the other end of the second camera adjustment assembly 55 and on one side of the second inspection camera 56. This arrangement ensures that light can evenly illuminate the side of the battery cell, avoiding blind spots caused by improper light source angles, thereby improving the accuracy of defect detection. Through the coordinated action of the second inspection camera 56 and the second coaxial light source 57, a complete surface image of the battery cell can be obtained from its side. This image data can then be analyzed by an image processing system to identify and locate various defects on the side of the battery cell.

[0094] Through the aforementioned technical solution, a second camera adjustment assembly 55, a second inspection camera 56, and a second coaxial light source 57 for side inspection are added to the first inspection mechanism 50. This allows the inspection mechanism to inspect not only the upper surface of the battery cell from above but also to acquire image data of the battery cell's side surface from the side. This greatly expands the inspection range, enabling comprehensive and thorough quality inspection of the battery cell. Before laser engraving, battery cells with side defects can be effectively identified and removed, avoiding ineffective processing and reducing production costs. After laser engraving, any damage or contamination that the laser engraving process may cause to the side surface of the battery cell can be detected in a timely manner, ensuring that the final product meets quality requirements. This comprehensive inspection capability significantly improves the intelligence level of the entire laser engraving system and the reliability of product quality control.

[0095] 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.

[0096] 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.

[0097] 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 unit claims listing several mechanisms, several of these mechanisms 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 machine based on a 6D magnetic levitation system, characterized in that, include: The magnetic levitation transmission mechanism (10) is provided with a magnetic levitation stator (11) and a carrier mover (12). The carrier mover (12) is located above the magnetic levitation stator (11) and is driven by the magnetic levitation stator (11) to move. The magnetic levitation stator (11) is provided with a first laser engraving area (111), a second laser engraving area (113), a flipping area (112), and a detection area. At least one first laser engraving mechanism (20) is disposed adjacent to the first laser engraving area (111), and the first laser engraving mechanism (20) is used to laser engrave the first surface of the battery cell that has moved to the lower part of the first laser engraving mechanism (20); A flipping mechanism (30) is disposed adjacent to the flipping area (112). The flipping mechanism (30) is used to flip the battery cell that has been moved to the bottom of the flipping mechanism (30) in the vertical direction. At least one second laser engraving mechanism (40) is disposed adjacent to the second laser engraving area (113), and the second laser engraving mechanism (40) is used to laser engrave the second surface of the battery cell that has moved to the lower part of the second laser engraving mechanism (40); And a testing mechanism is provided adjacent to the testing area, and the testing mechanism is used to perform CCD testing on the battery cell before and / or after the first laser engraving mechanism (20) and / or before and / or after the second laser engraving mechanism (40).

2. The laser engraving machine 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. 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 (11).

3. The laser engraving machine 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 machine based on a 6D magnetic levitation system according to claim 1, characterized in that, The first laser engraving mechanism (20) and the second laser engraving mechanism (40) both include a laser engraving frame (21), a laser (22) and a laser head (23). The laser (22) is located on the upper end of the laser engraving frame (21), and the laser (22) is connected to the laser head (23). The laser head (23) is located above the first laser engraving area (111) or the second laser engraving area (113).

5. The laser engraving machine based on a 6D magnetic levitation system according to claim 4, characterized in that, The number of the first laser engraving mechanism (20) is 7, the number of the second laser engraving mechanism (40) is 3, and the first laser engraving mechanism (20) and the second laser engraving mechanism (40) are arranged opposite to each other along the magnetic levitation transmission mechanism (10).

6. The laser engraving machine based on a 6D magnetic levitation system according to claim 1, characterized in that, The flipping mechanism (30) includes a multi-axis robot, a first fixed plate (31), a lifting cylinder (32), a second fixed plate (33), a rotary cylinder (34), and a suction fixture (35). The first fixed plate (31) is located at the drive end of the multi-axis robot. The lifting cylinder (32) is located on the first fixed plate (31). The second fixed plate (33) is located on the lifting cylinder (32) and is driven to lift and lower by the lifting cylinder (32). The rotary cylinder (34) is located on the second fixed plate (33). The suction fixture (35) is located on the drive shaft of the rotary cylinder (34) and is driven to rotate 180 degrees by the rotary cylinder (34).

7. The laser engraving machine based on a 6D magnetic levitation system according to claim 1, characterized in that, The detection area includes a first detection area (114), a second detection area (115), a third detection area (116), and a fourth detection area (117). The first detection area (114) and the fourth detection area (117) are located at the first end of the magnetic levitation stator (11). The first detection area (114) is on the same side and adjacent to the first laser-engraved area (111), and the first detection area (114) is on the same side and adjacent to the second laser-engraved area. The second detection area (115) is located at the second end of the magnetic levitation stator (11) and is on the same side and adjacent to the flipping area (112). The third detection area (116) is located between the flipping area (112) and the second laser-engraved area (113).

8. The laser engraving machine based on a 6D magnetic levitation system according to claim 7, characterized in that, The testing mechanism includes a first testing mechanism (50), a second testing mechanism (60), a third testing mechanism (70), and a fourth testing mechanism (80). The first testing mechanism (50) is arranged adjacent to the first testing area (114), the second testing mechanism (60) is arranged adjacent to the second testing area (115), the third testing mechanism (70) is arranged adjacent to the third testing area (116), and the fourth testing mechanism (80) is arranged adjacent to the fourth testing area (117).

9. The laser engraving machine based on a 6D magnetic levitation system according to claim 8, characterized in that, The first detection mechanism (50), the second detection mechanism (60), the third detection mechanism (70) and the fourth detection mechanism (80) each include a CCD bracket (51), a first camera adjustment component (52), a first detection camera (53) and a first coaxial light source (54). The camera adjustment component is arranged vertically on the upper end of the CCD bracket (51), and the first detection camera (53) is arranged on the upper end of the first camera adjustment component (52). The first coaxial light source (54) is arranged on the lower end of the first camera adjustment component (52) and located below the detection camera, so that the first detection camera (53) can collect image data of the upper surface of the battery cell from above.

10. The laser engraving machine based on a 6D magnetic levitation system according to claim 9, characterized in that, The first detection mechanism (50) further includes a second camera adjustment component (55), a second detection camera (56), and a second coaxial light source (57). The second camera adjustment component (55) is arranged laterally on the CCD bracket, and the second detection camera (56) is arranged at one end of the second camera adjustment component (55). The second coaxial light source (57) is arranged at the other end of the second camera adjustment component (55) and located on one side of the detection camera, so that the second detection camera (56) can acquire image data of the side of the battery cell from the side.

Images