Laser processing system and laser processing method
By designing an automated laser processing system, the problem of low efficiency in removing blue film from new energy battery cells was solved, achieving efficient processing of blue film on the surface of the battery cells and electrolyte cleaning, thus improving the processing efficiency of battery cell workpieces.
Patent Information
- Application Number
- CN202511548349.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2025-12-16
AI Technical Summary
In existing technologies, the removal of blue film from new energy battery cells mainly relies on manual operation, which is inefficient and labor-intensive, making it difficult to efficiently handle the task of returning and reworking large quantities of battery cells.
A laser processing system was designed, including a working platform, a loading component, a clamping component, and a laser processing component. Through the coordinated movement of the sliding component and the precise control of the control device, the system enables automated processing of the battery cell surface, particularly the heating modification of the blue film and the cleaning of the electrolyte.
It improves the efficiency of removing the blue film on the surface of the battery cell, reduces the difficulty of manually peeling off the film, and improves the processing efficiency and productivity of the battery cell workpiece.
Smart Images
Figure CN121131985A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of laser processing, in particular to a laser processing system and a laser processing method. BACKGROUND
[0002] As a kind of radiation source, when laser irradiates object, the electron in object absorbs laser energy and is excited, and the excited electron transfers energy to the lattice vibration of object, which causes the temperature of object to rise, and the water or solvent on the surface of object evaporates, or the characteristics of the adhering matter on the surface of object change. With the development of new energy industry, the number of new energy automobile battery cells is increasing, and a large number of battery cells need to be returned to the factory for re-liquid injection and recycling. A new energy battery cell will be coated with a layer of blue film on the surface when it is delivered, and the blue film layer is combined with the battery cell by adhesive. When a large number of battery cells are recycled, the blue film needs to be removed. At present, the operation of removing the blue film mainly relies on manual work. Since the adhesive layer has high adhesion, manual film tearing has high labor intensity and low efficiency, and therefore the processing efficiency of the workpiece surface is low. SUMMARY
[0003] The embodiments of the present application provide a laser processing system and a laser processing method, which can improve the processing efficiency of the workpiece surface.
[0004] In a first aspect, the laser processing system provided by the present application comprises: A work platform, the work platform is provided with a first sliding assembly, a first support gantry and a second support gantry, the first support gantry is provided with a second sliding assembly; A workpiece carrying assembly, the workpiece carrying assembly is used for conveying a workpiece to be processed, the workpiece carrying assembly is slidingly connected to the first sliding assembly, the workpiece carrying assembly is located on the first sliding assembly, and the first sliding assembly is used for driving the workpiece carrying assembly to move in a second horizontal direction; A third sliding assembly, the third sliding assembly is slidingly connected to the second sliding assembly, and the second sliding assembly is used for driving the third sliding assembly to move in a first horizontal direction; Two clamping assemblies, the two clamping assemblies are respectively connected to the opposite inner sides of the second support gantry, and the two clamping assemblies are used for clamping the workpiece to be processed from both sides; A laser processing assembly, the laser processing assembly is used for emitting laser to process the workpiece to be processed, the laser processing assembly is slidingly connected to the third sliding assembly, and the third sliding assembly is used for driving the laser processing assembly to move in a vertical direction, so that the laser processing assembly processes each region of the workpiece to be processed; A control device for controlling the first sliding assembly, the second sliding assembly, the third sliding assembly, the laser processing assembly, and the two clamping assemblies.
[0005] Optionally, the laser processing system includes two fourth sliding components connected to two opposite inner sides of the second support gantry, the clamping component being slidably connected to the fourth sliding components, and the control device being used to control the fourth sliding components to drive the clamping component to move in the vertical direction.
[0006] Optionally, the clamping assembly includes a fifth sliding assembly, a first driving device, and a clamping top post. The fifth sliding assembly is slidably connected to the fourth sliding assembly, the first driving device is slidably connected to the fifth sliding assembly, and the clamping top post is connected to the output end of the first driving device. The first driving device is used to drive the clamping top post to rotate. The control device is used to control the two fifth sliding assemblies to drive the two first driving devices to move closer together in the first horizontal direction to clamp the workpiece to be processed. The control device is also used to control the first driving device to drive the clamping top post to rotate so that the laser processing assembly processes each surface of the workpiece to be processed.
[0007] Optionally, the loading assembly includes a loading platform, a second driving device, and a first sliding base. The first sliding base is slidably connected to the first sliding assembly, and the output end of the second driving device is connected to the loading platform. The control device is used to control the second driving device to drive the loading platform to rotate in the horizontal plane.
[0008] Optionally, the laser processing system includes two sixth sliding components and two second sliding bases. The two sixth sliding components are disposed on the working platform, and the two second sliding bases are respectively connected to the two sixth sliding components. The two ends of the second support gantry are respectively slidably connected to the two second sliding bases. The control device is used to control the two sixth sliding components to drive the second support gantry to slide in the second horizontal direction.
[0009] Optionally, the laser processing assembly includes a light-emitting device, a housing, and a light guide cover. The light-emitting device includes a point light source and a collimating lens. The housing contains a first reflecting mirror and a second reflecting mirror. The light guide cover contains a concave lens. The collimating lens is used to collimate the light from the point light source into parallel light. The first reflecting mirror is used to reflect the parallel light collimated by the collimating lens to the second reflecting mirror. The second reflecting mirror is used to reflect the light reflected by the first reflecting mirror to the concave lens. The concave lens is used to expand the light reflected by the second reflecting mirror and emit it from the light guide cover, illuminating the workpiece to be processed. The control device is used to control the light-emitting power of the point light source.
[0010] Optionally, the light guide cover is provided with a blowing device at its outlet edge, and the control device is used to control the blowing device to deliver air to the workpiece to be processed.
[0011] Optionally, the reflecting surface of the first reflector forms a 45-degree angle with the light incident on the reflecting surface of the first reflector, and the reflecting surface of the second reflector forms a 45-degree angle with the light incident on the reflecting surface of the second reflector, and the reflecting surfaces of the first reflector and the second reflector are parallel.
[0012] Secondly, the laser processing method provided in this application is applied to the laser processing system described in any one of the first aspects, wherein the laser processing system includes a detection device, the execution body of the laser processing method is the control device, and the laser processing method includes: When a processing instruction is received, the first sliding component is controlled to drive the workpiece to be processed to move below the laser processing component; Control the two clamping components to clamp the workpiece to be processed; The detection device detects whether the distance between the laser processing component and the upper surface of the workpiece to be processed is a preset distance. When the distance between the laser processing component and the workpiece to be processed is not a preset distance, the third sliding component is controlled to drive the laser processing component to move in the vertical direction so that the distance between the laser processing component and the upper surface of the workpiece to be processed is a preset distance. The second sliding component is controlled to drive the third sliding component to move in the first horizontal direction to process the upper surface of the workpiece.
[0013] Optionally, controlling the second sliding component to drive the third sliding component to move in a first horizontal direction to process the upper surface of the workpiece includes: Obtain multiple preset position information in a sequential order, wherein the position information includes the coordinate information of the laser processing component; One of the position information is determined as the target information, and the second sliding component is controlled to drive the third sliding component to move in the first horizontal direction based on the target information; When the laser processing component meets the target information, the laser processing component is controlled to process the workpiece to be processed; After the laser processing component finishes processing the workpiece, the laser processing component is turned off, and the second sliding component is controlled to drive the third sliding component to move in the first horizontal direction based on the next position information of the target information.
[0014] In this application, compared with related technologies, the laser processing system includes: a working platform, on which a first sliding component, a first support gantry, and a second support gantry are disposed, and the second sliding component is disposed on the first support gantry; a carrying component, which is used to transport the workpiece to be processed, and is slidably connected to the first sliding component, and is located on the first sliding component, and the first sliding component is used to drive the carrying component to move in a second horizontal direction; a third sliding component, which is slidably connected to the second sliding component, and the second sliding component is used to drive the third sliding component to move in a first horizontal direction; two clamping components, which are respectively connected to two opposite inner sides of the second support gantry, and are used to clamp the workpiece to be processed from both sides; a laser processing component, which is used to emit a laser to process the workpiece to be processed, and is slidably connected to the third sliding component, and the third sliding component is used to drive the laser processing component to move in a vertical direction so that the laser processing component processes various areas of the workpiece to be processed; and a control device, which is used to control the first sliding component, the second sliding component, the third sliding component, the laser processing component, and the two clamping components. This application can improve the efficiency of machining workpiece surfaces. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the laser processing system provided in this application. Figure 2 This is a schematic diagram of the optical path structure of a laser processing component in one embodiment of the laser processing system provided in this application. Figure 3This is a schematic diagram of the calibration of the workpiece to be processed in one embodiment of the laser processing method provided in this application; Figure 4 This is a schematic diagram illustrating the processing of a workpiece in one embodiment of the laser processing method provided in this application. Figure 5 This is a schematic flowchart of another embodiment of the laser processing method provided in this application. Detailed Implementation
[0017] It should be noted that the principles of this application are illustrated by example in a suitable computing environment. The following description is based on the specific embodiments of this application that are illustrated, and should not be regarded as limiting other specific embodiments not detailed herein.
[0018] In the following description of this application, "some embodiments" are referred to, which describe a subset of all possible embodiments. However, it is understood that "some embodiments" may be the same subset or different subset of all possible embodiments, and may be combined with each other without conflict.
[0019] In the following description of this application, the terms "first, second, third" are used merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first, second, third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.
[0021] While the description of this application is presented in conjunction with some embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details will be included in the following description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0022] In the embodiments described in this application, references to "one embodiment" or "some embodiments" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.
[0023] In the embodiments of this application, the terms "comprising," "including," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.
[0024] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.
[0025] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0026] In the embodiments of this application, the directional terms mentioned, such as "up", "down", "left", "right", "inner", and "outer", are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0027] Please refer to Figures 1-2 In this embodiment of the application, a laser processing system is provided, comprising: The work platform 11 is provided with a first sliding component 121, a first support gantry 111, and a second support gantry 112. The first support gantry 111 is provided with a second sliding component 122. Specifically, both the first support gantry 111 and the second support gantry 112 are gantry-shaped brackets.
[0028] The loading assembly is used to transport the workpiece to be processed. The loading assembly is slidably connected to the first sliding assembly 121 and is located on the first sliding assembly 121. The first sliding assembly 121 is used to drive the loading assembly to move in the second horizontal direction Y.
[0029] The third sliding component 123 is slidably connected to the second sliding component 122. The second sliding component 122 is used to drive the third sliding component 123 to move in the first horizontal direction X. Two clamping assemblies are respectively connected to the two opposite inner sides of the two second support gantry 112. The two clamping assemblies are used to clamp the workpiece to be processed from both sides. The laser processing component 14 is used to emit a laser to process the workpiece. The laser processing component 14 is slidably connected to the third sliding component 123. The third sliding component 123 is used to drive the laser processing component 14 to move in the vertical direction Z so that the laser processing component 14 processes each area of the workpiece. A control device is used to control the first sliding assembly 121, the second sliding assembly 122, the third sliding assembly 123, the laser processing assembly 14, and the two clamping assemblies.
[0030] In this embodiment of the application, the loading component includes a loading platform 133, a second driving device 132, and a first sliding base 131. The first sliding base 131 is slidably connected to the first sliding component 121. The output end of the second driving device 132 is connected to the loading platform 133. The control device is used to control the second driving device 132 to drive the loading platform 133 to rotate in the horizontal plane.
[0031] The second drive device 132 can be a stepper motor or a servo motor, selected according to specific circumstances. The second drive device 132 can be controlled by a control device to control the rotational speed of its output end, thereby controlling the rotational speed of the platform 133. Alternatively, a speed reducer can be installed between the output end of the second drive device 132 and the platform 133 to control the rotational speed of the platform 133. A speed reducer is a mechanical transmission device used in conjunction with a motor. Its main function is to reduce the motor's output speed while increasing the output torque to meet the working requirements of different mechanical equipment.
[0032] In this embodiment of the application, the laser processing system includes two fourth sliding components 124, which are connected to two opposite inner sides of the second support gantry 112. The clamping component is slidably connected to the fourth sliding components 124, and the control device is used to control the fourth sliding components 124 to drive the clamping component to move in the vertical direction Z.
[0033] In this embodiment, the clamping assembly includes a fifth sliding assembly 125, a first driving device 127, and a clamping top post 128. The fifth sliding assembly 125 is slidably connected to the fourth sliding assembly 124, and the first driving device 127 is slidably connected to the fifth sliding assembly 125. The clamping top post 128 is connected to the output end of the first driving device 127. The first driving device 127 is used to drive the clamping top post 128 to rotate. The control device is used to control the two fifth sliding assemblies 125 to drive the two first driving devices 127 to move closer together in the first horizontal direction X to clamp the workpiece to be processed. The control device is used to control the first driving device 127 to drive the clamping top post 128 to rotate so that the laser processing assembly 14 processes each surface of the workpiece to be processed.
[0034] In this embodiment of the application, the laser processing system includes two sixth sliding components 126 and two second sliding bases 113. The two sixth sliding components 126 are disposed on the working platform 11, and the two second sliding bases 113 are slidably connected to the two sixth sliding components 126 respectively. The two ends of the second support gantry 112 are respectively connected to the two second sliding bases 113. The control device is used to control the two sixth sliding components 126 to drive the second support gantry 112 to slide in the second horizontal direction Y.
[0035] In some embodiments, the first sliding assembly 121 includes a guide rail with a groove, and a first sliding base 131 has a protrusion with the same cross-section as the groove. The protrusion on the first sliding base 131 is embedded in the groove, thereby sliding along the direction of the groove. Specifically, the protrusion and the groove have a T-shaped cross-section, so that even if the first sliding base 131 is located below the first sliding assembly 121, the two will not fall off. The guide rail is provided with a drive motor, two gears, and a chain connecting the two gears. The drive motor drives the gears to rotate, causing the chain to rotate. The first sliding base 131 is provided with gears, and the gears on the first sliding base 131 mesh with the chain. When the chain rotates, it drives the first sliding base 131 to slide.
[0036] It should be noted that the second sliding component 122, the third sliding component 123, the fourth sliding component 124, the fifth sliding component 125, and the sixth sliding component 126 of this application drive other components to move in the same way as the first sliding component 121, and will not be described again here.
[0037] In this embodiment, the laser processing assembly 14 includes a light-emitting device 142, a housing 141, and a light guide 143. The light-emitting device 142 includes a point light source 151 and a collimating lens 152. The housing 141 is provided with a first reflecting mirror 153 and a second reflecting mirror 154. The light guide 143 is provided with a concave lens 155. The collimating lens 152 is used to collimate the light from the point light source 151 into parallel light. The first reflecting mirror 153 is used to reflect the parallel light collimated by the collimating lens 152 to the second reflecting mirror 154. The second reflecting mirror 154 is used to reflect the light reflected by the first reflecting mirror 153 to the concave lens 155. The concave lens 155 is used to expand the light reflected by the second reflecting mirror 154 and emit it from the light guide 143, illuminating the workpiece to be processed. The control device is used to control the light-emitting power of the point light source 151.
[0038] Specifically, the laser emitted by the point light source 151 is continuous light with a wavelength of 1064nm and a continuous laser power of 6000W. The control device controls the output energy and output mode of the laser. The laser collimating lens converts the divergent light emitted by the point light source into parallel light. After passing through a 45-degree reflecting mirror, the light is diverged into a large spot by a concave optical lens. The size of the spot is proportional to the distance from the concave mirror to the surface of the workpiece to be processed.
[0039] In this embodiment, the light guide cover 143 is provided with a blowing device 144 at the outlet edge, and the control device is used to control the blowing device 144 to send air to the workpiece to be processed.
[0040] In this embodiment, the reflecting surface of the first reflector 153 forms a 45-degree angle with the light incident on the reflecting surface of the first reflector 153, and the reflecting surface of the second reflector 154 forms a 45-degree angle with the light incident on the reflecting surface of the second reflector 154. The reflecting surfaces of the first reflector 153 and the second reflector 154 are parallel.
[0041] Furthermore, the laser processing system includes a detection device 145, which is a rangefinder, and the detection device 145 is located at the edge of the blowing device 144.
[0042] Specifically, the point light source 151, the collimating lens 152, and the first reflecting mirror 153 are arranged sequentially from top to bottom in the vertical direction Z. The first reflecting mirror 153 and the second reflecting mirror 154 are arranged sequentially from left to right in the first horizontal direction X. The second reflecting mirror 154 and the concave lens 155 are arranged sequentially from top to bottom in the vertical direction Z.
[0043] The laser processing system is suitable for blue film modification and electrolyte cleaning on the surface of square battery cells. Before processing, the distance between the workpiece and the concave mirror is measured by a rangefinder and compared with the actual value for correction. The correction value is calculated by software and the number of pulses is sent to the lifting driver of the third sliding component 123. The lifting driver of the third sliding component 123 adjusts the relative position of the laser processing component and the workpiece. The laser processing component 14 moves to the set coordinate in the vertical direction Z (i.e., Z-axis).
[0044] Two clamping top posts 128 flip the four sides of the workpiece to the processing position, allowing the laser processing component 14 to process the four sides of the workpiece. The laser processing component 14 moves to calibration points 1, 2, 3, 4, etc. After moving to the corresponding calibration point, the laser processing component 14 emits light according to the set light emission time, causing the blue film to automatically expand upon heating, forming multiple expansion areas. After completion, it flips to the other side and performs the same operation. When the four sides in the same direction are processed, the two clamping top posts 128 place the battery cell on the stage 133, rotate it, and then pick up the battery cell again. The last two sides are heated at the calibration points in the same way. When all six sides have completed the heating of the calibration points, the battery cell is moved out with the moving module and manually peeled off. Since all six sides have expansion areas, the adhesion area of the blue film is reduced, the adhesion force is weakened, and the film is easy to peel off.
[0045] Please refer to Figures 3-4 This application also provides a laser processing method, which is applied to any of the laser processing systems described above. The execution body of the laser processing method is a control device, and the laser processing method includes: (1) When a processing instruction is received, the first sliding component is controlled to drive the workpiece to be processed to move below the laser processing component.
[0046] (2) Control the two clamping components to clamp the workpiece to be processed; (3) The distance between the laser processing component and the upper surface of the workpiece to be processed is detected by the detection device to see if it is the preset distance.
[0047] (4) When the distance between the laser processing component and the workpiece to be processed is not the preset distance, the third sliding component is controlled to drive the laser processing component to move in the vertical direction Z so that the distance between the laser processing component and the upper surface of the workpiece to be processed is the preset distance.
[0048] Specifically, when the distance between the laser processing component and the upper surface of the workpiece is a preset distance, the laser emitted by the laser processing component forms a square spot of a preset size on the upper surface of the workpiece. In a specific embodiment, the preset size is a square of 100mm*100mm.
[0049] (5) Control the second sliding component to drive the third sliding component to move in the first horizontal direction to process the upper surface of the workpiece to be processed.
[0050] Specifically, controlling the second sliding component to drive the third sliding component to move in the first horizontal direction to process the upper surface of the workpiece to be processed includes: (1) Obtain multiple position information in a preset sequential arrangement, wherein the position information includes the coordinate information of the laser processing component.
[0051] The coordinate information of the laser processing component can be the relative coordinate information of the laser processing component with respect to the fifth sliding component. For example, multiple position information are (X1, Y1), (X2, Y2), (X3, Y3), (X4, Y4), (X5, Y5), (X6, Y6), (X7, Y7), (X8, Y8).
[0052] (2) Determine one of the position information as the target information, and control the second sliding component to drive the third sliding component to move in the first horizontal direction based on the target information.
[0053] For example, using (X1, Y1) as the target information, the coordinate information of the laser processing component relative to the fifth sliding component is (X1, Y1).
[0054] (3) When the laser processing component meets the target information, control the laser processing component to process the workpiece to be processed.
[0055] When the laser processing component meets the target information, the coordinate information of the laser processing component relative to the fifth sliding component is (X1, Y1), and the point light source of the laser processing component is controlled to emit a laser with a first preset power to process the workpiece.
[0056] The first preset power can be 6000W, but of course, the first preset power can be set according to specific circumstances.
[0057] (4) When the laser processing component finishes processing the workpiece, the laser processing component is turned off, and the second sliding component is controlled to drive the third sliding component to move in the second horizontal direction based on the next position information of the target information.
[0058] By sequentially identifying multiple location information as target information, it becomes possible to process various areas on the upper surface of the workpiece to be processed.
[0059] Please refer to Figure 5 In another specific implementation, the laser processing method includes: 201. Calibrate the multiple processing areas arranged in sequence, and place the workpiece to be processed on the carrier assembly.
[0060] In some embodiments, a preset size and the number of processing areas on each face of the cuboid workpiece are determined based on the dimensions of the workpiece. Specifically, the size of each processing area is a preset size. For example... Figure 3 As shown, for example, the dimensions of the cuboid workpiece to be processed are: length L, width D, and height H. The preset dimensions are calculated to be 100mm * 100mm, and the processing area is a 100mm * 100mm square. The number of processing areas on the surface formed by the length and width is (L * D) / (100mm * 100mm), for example, 8. The 8 processing areas are arranged in two rows and four columns. Specifically, the units for both the dimensions of the cuboid workpiece and the preset dimensions are millimeters, and the side length of the rectangle with the preset dimensions is the greatest common divisor of the lengths of all sides of the cuboid workpiece. Of course, the preset dimensions can also be preset manually.
[0061] Specifically, the workpiece to be processed is placed on the stage 133 of the carrier assembly.
[0062] 202. When a calibration command is received, the first sliding component is controlled to drive the workpiece to be processed to move below the laser processing component.
[0063] 203. Control the two clamping components to clamp the workpiece to be processed, and adjust the distance between the laser processing component and the upper surface of the workpiece to the preset distance.
[0064] Specifically, the detection device checks whether the distance between the laser processing component and the upper surface of the workpiece is a preset distance. If the distance between the laser processing component and the workpiece is not the preset distance, the third sliding component is controlled to drive the laser processing component to move in the vertical direction Z, so that the distance between the laser processing component and the upper surface of the workpiece is the preset distance. When the distance between the laser processing component and the upper surface of the workpiece is the preset distance, the spot size of the laser emitted by the laser processing component on the upper surface of the workpiece is the preset size.
[0065] In one specific embodiment, the preset size is a square of 100mm*100mm.
[0066] 204. Set the calibration parameters of the laser processing component, control the second sliding component to drive the third sliding component to move in the first horizontal direction, and control the sixth sliding component to drive the fifth sliding component on the second support gantry to slide in the second horizontal direction, calibrating multiple position information arranged in sequence.
[0067] Specifically, the calibration parameters include wavelength, laser power, duty cycle, and emission time. The laser power is a second preset power, which is less than the first preset power. For example, if the laser processing component emits red light according to the calibration parameters, no processing is performed; only calibration is conducted.
[0068] Specifically, the two clamping components are controlled to clamp the workpiece to be processed, and the distance between the laser processing component and the upper surface of the workpiece to be processed is adjusted to a preset distance.
[0069] When the distance between the laser processing component and the upper surface of the workpiece is a preset distance, the second sliding component 122 is controlled to drive the third sliding component 123 to move in the first horizontal direction X, thereby causing the laser processing component 14 to move in the first horizontal direction X. The sixth sliding component 126 drives the second support gantry 112 to slide in the second horizontal direction Y, thereby causing the fifth sliding component 125 on the second support gantry 112 to slide in the second horizontal direction Y, and thus causing the workpiece to move in the second horizontal direction Y. When the laser spot emitted by the laser processing component on the upper surface of the workpiece coincides with a processing area, the relative position information of the laser processing component relative to the fifth sliding component is recorded, for example, (X1, Y1).
[0070] Continue to control the second sliding component 122 to drive the third sliding component 123 to move in the first horizontal direction X, thereby driving the laser processing component 14 to move in the first horizontal direction X. The sixth sliding component 126 drives the second support gantry 112 to slide in the second horizontal direction Y, thereby driving the fifth sliding component 125 on the second support gantry 112 to slide in the second horizontal direction Y, thereby sequentially calibrating multiple position information arranged in sequence along the calibration direction.
[0071] For example, multiple location information are (X1, Y1), (X2, Y2), (X3, Y3), (X4, Y4), (X5, Y5), (X6, Y6), (X7, Y7), (X8, Y8).
[0072] 205. When a processing instruction is received, the processing parameters of the laser processing component are set, the second sliding component is controlled to drive the third sliding component to move in the first horizontal direction, and the sixth sliding component is controlled to drive the fifth sliding component on the second support gantry to slide in the second horizontal direction, reaching multiple position information arranged in sequence, and processing the workpiece to be processed.
[0073] Specifically, processing parameters include wavelength, laser power, duty cycle, and emission time. For example, if a laser processing component emits a 6000W laser according to calibration parameters, processing will then be performed, and only calibration will be conducted.
[0074] like Figure 4As shown, for example, using (X1, Y1) as the target information, the laser processing component is moved to a position relative to the fifth sliding component with coordinates (X1, Y1). The laser processing component is then activated for processing. After processing is complete, the laser processing component is deactivated, and then moved to a position relative to the fifth sliding component with coordinates (X2, Y2). The laser processing component is then activated for processing. The laser processing component sequentially reaches multiple positions along the scanning direction, thereby processing the processing areas of each position in turn. Of course, the laser processing component can also remain activated during its movement.
[0075] Furthermore, after processing one side of the workpiece, the control device controls the first drive device 127 to drive the clamping top column 128 to rotate 90 degrees, causing the workpiece to rotate 90 degrees, and then calibrates and processes the other side of the workpiece. After calibrating all four sides of the workpiece, the control device controls the two fifth sliding components 125 to drive the two first drive devices 127 to move away in the first horizontal direction X to release the workpiece, which then falls into the stage 133. The control device controls the second drive device 132 to drive the stage 133 to rotate 90 degrees in the horizontal plane, and then controls the two fifth sliding components 125 to drive the two first drive devices 127 to move closer in the first horizontal direction X to clamp the workpiece. The control device also controls the first drive devices 127 to drive the clamping top column 128 to rotate so that the laser processing component 14 calibrates and processes the other two sides of the workpiece.
[0076] 206. When the completion instruction is received, the laser processing component is turned off, the two fifth sliding components are controlled to drive the two first driving devices to move away in the first horizontal direction to release the workpiece to be processed, and the first sliding components are controlled to drive the workpiece to be processed to move out.
[0077] Specifically, after the calibration and machining of all six surfaces are completed, a completion command is received. The two fifth sliding components 125 are controlled to drive the two first driving devices 127 to move away in the first horizontal direction X to release the workpiece to be machined, which then falls into the stage 133. The first sliding components are controlled to drive the stage 133 to move, thereby removing the workpiece, which is then manually removed.
[0078] The workpiece to be processed is a battery cell. The processing instructions can be to heat-modify the blue film on the surface of the workpiece, or to heat-clean the electrolyte on the surface of the workpiece. The blue film on the surface of the battery cell (commonly known as the blue protective film or battery cell separator film) is a key functional auxiliary material in the production and application of lithium battery cells. Its core function is to protect the battery cell body, isolate external risks, and assist the manufacturing process. Its material and function are directly related to the safety and production efficiency of the battery cell.
[0079] Furthermore, when the processing instruction is to heat-modify the blue film on the surface of the workpiece, the laser processing component is moved to a position relative to the fifth sliding component, where the coordinates are one of the coordinates, for example, (X1, Y1). The laser processing component is then activated for processing. After processing is completed, the laser processing component is deactivated, and the laser processing component is moved to a position relative to the fifth sliding component, where the coordinates are the next coordinates, for example, (X2, Y2). The laser processing component is then activated for processing. The laser processing component sequentially reaches multiple positions along the scanning direction, thereby processing the processing areas of each position in turn.
[0080] When the processing instruction is to heat and clean the electrolyte on the surface of the workpiece, the laser processing component is moved to one of the coordinates relative to the fifth sliding component, for example, (X1, Y1). The laser processing component then starts processing. While keeping the laser processing component in the active state, it is moved to the next coordinate relative to the fifth sliding component, for example, (X2, Y2). The laser processing component then starts processing again. The laser processing component sequentially reaches multiple positions along the scanning direction, thereby processing the processing areas of each position in turn. For example, the moving speed of the laser processing component is set to V, and the laser emits light at a preset power until single-sided heating is completed.
[0081] The blue film layer is bonded to the battery cell by adhesive, and this blue film needs to be removed during mass recycling and rework of the battery cells. Currently, the removal of the blue film is mainly done manually, which is labor-intensive and inefficient due to the strong adhesive layer. To solve the problem of low efficiency in removing the blue film during battery cell rework, the laser processing method proposed in this application uses laser heating to modify the adhesive layer of the blue film, reducing its adhesion and making manual removal less difficult, thus directly improving the efficiency of recoating the battery cells.
[0082] Compared to related technologies, the laser processing system includes: a working platform, on which a first sliding component, a first support gantry, and a second support gantry are mounted, and the second sliding component is mounted on the first support gantry; a loading component for transporting the workpiece to be processed, the loading component being slidably connected to the first sliding component and located on the first sliding component, the first sliding component driving the loading component to move in a second horizontal direction; a third sliding component, the third sliding component being slidably connected to the second sliding component, the second sliding component driving the third sliding component to move in a first horizontal direction; two clamping components, the two clamping components being respectively connected to two opposite inner sides of the second support gantry, the two clamping components being used to clamp the workpiece to be processed from both sides; a laser processing component for emitting a laser to process the workpiece to be processed, the laser processing component being slidably connected to the third sliding component, the third sliding component driving the laser processing component to move in the vertical direction so that the laser processing component processes various areas of the workpiece to be processed; and a control device for controlling the first sliding component, the second sliding component, the third sliding component, the laser processing component, and the two clamping components. This application can improve the processing efficiency of workpiece surfaces.
[0083] The laser processing system and laser processing method provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
[0084] It should be noted that when the above embodiments of this application are applied to specific products or technologies, and user-related data is involved, user permission or consent is required, and the collection, use and processing of related data must comply with the relevant laws, regulations and standards of the relevant countries and regions.
Claims
1. A laser processing system, characterized in that, The laser processing system includes: A work platform, wherein a first sliding component, a first support gantry, and a second support gantry are provided on the work platform, and the second sliding component is provided on the first support gantry; A carrying assembly for conveying a workpiece to be processed, the carrying assembly being slidably connected to a first sliding assembly, the carrying assembly being located on the first sliding assembly, and the first sliding assembly being used to drive the carrying assembly to move in a second horizontal direction; A third sliding component is slidably connected to the second sliding component, and the second sliding component is used to drive the third sliding component to move in a first horizontal direction; Two clamping assemblies are respectively connected to two opposite inner sides of the second support gantry, and the two clamping assemblies are used to clamp the workpiece to be processed from both sides; A laser processing assembly is provided, wherein the laser processing assembly is used to emit a laser to process the workpiece to be processed, the laser processing assembly is slidably connected to a third sliding assembly, and the third sliding assembly is used to drive the laser processing assembly to move in the vertical direction so that the laser processing assembly processes various areas of the workpiece to be processed; A control device for controlling the first sliding assembly, the second sliding assembly, the third sliding assembly, the laser processing assembly, and the two clamping assemblies.
2. The laser processing system according to claim 1, characterized in that, The laser processing system includes two fourth sliding components connected to two opposite inner sides of the second support gantry. The clamping component is slidably connected to the fourth sliding components. The control device is used to control the fourth sliding components to drive the clamping component to move in the vertical direction.
3. The laser processing system according to claim 2, characterized in that, The clamping assembly includes a fifth sliding assembly, a first driving device, and a clamping top post. The fifth sliding assembly is slidably connected to the fourth sliding assembly, the first driving device is slidably connected to the fifth sliding assembly, and the clamping top post is connected to the output end of the first driving device. The first driving device is used to drive the clamping top post to rotate. The control device is used to control the two fifth sliding assemblies to drive the two first driving devices to move closer together in the first horizontal direction to clamp the workpiece to be processed. The control device is also used to control the first driving devices to drive the clamping top post to rotate so that the laser processing assembly processes each surface of the workpiece to be processed.
4. The laser processing system according to claim 3, characterized in that, The loading assembly includes a loading platform, a second driving device, and a first sliding base. The first sliding base is slidably connected to the first sliding assembly. The output end of the second driving device is connected to the loading platform. The control device is used to control the second driving device to drive the loading platform to rotate in the horizontal plane.
5. The laser processing system according to claim 1, characterized in that, The laser processing system includes two sixth sliding components and two second sliding bases. The two sixth sliding components are disposed on the working platform, and the two second sliding bases are respectively connected to the two sixth sliding components. The two ends of the second support gantry are respectively slidably connected to the two second sliding bases. The control device is used to control the two sixth sliding components to drive the second support gantry to slide in the second horizontal direction.
6. The laser processing system according to claim 1, characterized in that, The laser processing assembly includes a light-emitting device, a housing, and a light guide cover. The light-emitting device includes a point light source and a collimating lens. The housing contains a first reflecting mirror and a second reflecting mirror. The light guide cover contains a concave lens. The collimating lens is used to collimate the light from the point light source into parallel light. The first reflecting mirror is used to reflect the parallel light collimated by the collimating lens to the second reflecting mirror. The second reflecting mirror is used to reflect the light reflected by the first reflecting mirror to the concave lens. The concave lens is used to expand the light reflected by the second reflecting mirror and emit it from the light guide cover, illuminating the workpiece to be processed. The control device is used to control the light-emitting power of the point light source.
7. The laser processing system according to claim 6, characterized in that, The light guide cover has a blower at its outlet edge, and the control device is used to control the blower to deliver air to the workpiece to be processed.
8. The laser processing system according to claim 7, characterized in that, The reflecting surface of the first reflector forms a 45-degree angle with the light incident on the reflecting surface of the first reflector, and the reflecting surface of the second reflector forms a 45-degree angle with the light incident on the reflecting surface of the second reflector. The reflecting surfaces of the first reflector and the second reflector are parallel.
9. A laser processing method, characterized in that, The laser processing method is applied to the laser processing system according to any one of claims 1-8, the laser processing system includes a detection device, the execution body of the laser processing method is the control device, and the laser processing method includes: When a processing instruction is received, the first sliding component is controlled to drive the workpiece to be processed to move below the laser processing component; Control the two clamping components to clamp the workpiece to be processed; The detection device detects whether the distance between the laser processing component and the upper surface of the workpiece to be processed is a preset distance. When the distance between the laser processing component and the workpiece to be processed is not a preset distance, the third sliding component is controlled to drive the laser processing component to move in the vertical direction so that the distance between the laser processing component and the upper surface of the workpiece to be processed is a preset distance. The second sliding component is controlled to drive the third sliding component to move in the first horizontal direction to process the upper surface of the workpiece.
10. The laser processing method according to claim 9, characterized in that, The control of the second sliding component to drive the third sliding component to move in the first horizontal direction to process the upper surface of the workpiece includes: Obtain multiple preset position information in a sequential order, wherein the position information includes the coordinate information of the laser processing component; One of the position information is determined as the target information, and the second sliding component is controlled to drive the third sliding component to move in the first horizontal direction based on the target information; When the laser processing component meets the target information, the laser processing component is controlled to process the workpiece to be processed; After the laser processing component finishes processing the workpiece, the laser processing component is turned off, and the second sliding component is controlled to drive the third sliding component to move in the first horizontal direction based on the next position information of the target information.