A laser welding device for lithium battery processing

Abstract

This application discloses a laser welding device for lithium battery processing, belonging to the technical field of welding devices. It includes: a worktable; a mounting groove located at the upper end of the worktable; a mounting frame fixedly connected to the upper end of the worktable; a laser welding gun disposed at the lower end of the mounting frame; and a receiving roller fixedly connected to the inner wall of the mounting groove. This application achieves automatic transfer and precise positioning of lithium batteries. A motor drives a rotating plate to rotate, which, through the cooperation of a sliding groove and a U-shaped groove, drives a lifting rod to complete a composite motion of "rising-forward-falling," smoothly transferring the battery to the receiving roller. A pressure rod presses down, triggering a moving cylinder to move downward. A spiral groove structure converts linear motion into rotation of the rotating rod, and a linkage mechanism drives the positioning plates on both sides to move inward synchronously, achieving automatic clamping of the battery.

Description

Technical Field

[0001] This application relates to the field of welding equipment technology, and more specifically, to a laser welding apparatus for lithium battery processing. Background Technology

[0002] Lithium batteries are a type of electrochemical energy storage device that uses lithium metal or lithium ions as the core energy storage carrier. With their advantages such as high energy density, long cycle life, and no memory effect, they have become a core energy component in consumer electronics, new energy vehicles, energy storage systems and other fields.

[0003] For example, Chinese Patent Publication No. CN120038428A discloses the following technical solution: A laser welding device for processing lithium batteries for new energy vehicles, relating to the field of laser welding device technology, including a telescopic device, a push table, a baffle, a ladder, rollers, and a limiting plate. The telescopic device is fixedly installed on the left side of the frame, the push table is fixedly installed at the output end of the telescopic device, the baffle is fixedly installed on the top of the push table, the ladder is slidably installed on the top of the through groove, a rolling groove is provided inside the ladder, and the limiting plate is fixedly installed on the side of the ladder away from the telescopic device.

[0004] The existing technology has the following problems: When the above-mentioned device is used to weld batteries, there may be issues such as inaccurate battery positioning or unstable clamping, which can easily lead to battery displacement during the welding process and affect welding accuracy. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a laser welding apparatus for lithium battery processing, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this application provides a laser welding apparatus for lithium battery processing, comprising: a worktable; a mounting groove formed at the upper end of the worktable; a mounting frame fixedly connected to the upper end of the worktable; a laser welding gun disposed at the lower end of the mounting frame; and a receiving roller fixedly connected to the inner wall of the mounting groove. A fixed plate is fixedly connected to the upper end of the workbench. A motor is fixedly connected to the back of the fixed plate. A rotating shaft is fixedly connected to the output end of the motor. A rotating plate is fixedly connected to the other end of the rotating shaft. A sliding groove is formed in the middle of the rotating plate. A C-shaped groove is formed on the outer wall of the fixed plate. A sliding shaft is slidably connected inside the C-shaped groove. A lifting rod is rotatably connected to the end of the sliding shaft away from the C-shaped groove. The sliding shaft is slidably connected to the inner wall of the sliding groove. A connecting plate is fixedly connected to the bottom of the lifting rod. A transfer rod and a pressure rod are fixedly connected to the outer wall of the connecting plate. A rotating rod is rotatably connected to the bottom of the mounting groove. A movable cylinder is movably sleeved on the outer wall of the rotating rod. A spiral groove is formed on the outer wall of the rotating rod. A movable shaft is fixedly connected to the inner wall of the movable cylinder. A connecting rod A is fixedly sleeved on the outer wall of the rotating rod. Connecting rod B is hinged to both ends of connecting rod A by a pin. A connecting shaft is rotatably connected to the other end of connecting rod B. A positioning plate is fixedly connected to the top of the connecting shaft.

[0007] Preferably, the inner wall of the mounting groove is provided with a receiving groove, and a guide rail is fixedly connected inside the receiving groove, and the positioning plate is slidably connected to the outer wall of the guide rail.

[0008] Preferably, a slide rail is fixedly connected to the outer wall of the fixed plate, and a slider is slidably connected to the outer wall of the slide rail, with the top of the lifting rod sliding through the slider.

[0009] Preferably, the mounting groove has a vertical groove inside, a horizontal plate is fixedly connected to the outer wall of the movable cylinder, one end of the horizontal plate is slidably connected to the inside of the vertical groove, a spring A is fixedly connected to the bottom of the inner wall of the vertical groove, and the upper end of the spring A is fixedly connected to the bottom of the horizontal plate.

[0010] Preferably, a dust removal assembly is installed at the upper end of the workbench. The dust removal assembly includes a mounting box, which is fixedly connected to the upper end of the workbench. An airbag is installed inside the mounting box. A connecting rod is fixedly connected to the outer wall of the slider. A push plate is fixedly connected to the other end of the connecting rod. The air outlet of the airbag is connected to a conveying hose. A connecting pipe is installed at the other end of the conveying hose. A dust blowing hood is installed at the other end of the connecting pipe. A threaded rod is rotatably connected to the outer wall of the mounting box. A gear is fixedly sleeved on the outer wall of the threaded rod. A moving block is threadedly connected to the outer wall of the threaded rod. A connecting block A is fixedly connected to the outer wall of the moving block. The other end of the connecting block A is fixedly connected to the connecting pipe. A toothed plate is fixedly connected to the outer wall of the connecting rod.

[0011] Preferably, the bottom of the movable block is slidably connected to the surface of the worktable.

[0012] Preferably, the toothed plate meshes with the gear, and the toothed plate meshes with the gear.

[0013] Preferably, the upper end of the workbench is equipped with a protective component, the protective component includes a mounting shaft, the mounting shaft is rotatably connected to the upper end of the workbench, a protective plate and a linkage rod are fixedly connected to the outer wall of the mounting shaft, a linkage shaft is fixedly connected to the upper end of the linkage rod, a connecting block B is fixedly connected to the upper end of the positioning plate on one side, and a rectangular frame is fixedly connected to the upper end of the connecting block B.

[0014] Preferably, the outer wall of the linkage shaft is slidably connected to the inner wall of the rectangular frame.

[0015] Preferably, the upper end of the receiving groove is provided with a through groove, and the connecting block B is slidably connected to the inner wall of the through groove.

[0016] The advantages of this application are: (1) This application realizes automatic transfer and precise positioning of lithium batteries. The motor drives the rotating plate to rotate, and through the cooperation of the slide groove and the C-shaped groove, it drives the lifting rod to complete the compound motion of "rising-forward movement-falling", which smoothly transfers the battery to the receiving roller; the pressure rod presses down to trigger the moving cylinder to move down, and the spiral groove structure converts the linear motion into the rotation of the rotating rod, and then drives the positioning plates on both sides to move inward synchronously through the linkage mechanism, so as to realize the automatic clamping of the battery. This process does not require an additional power source, the positioning is reliable and the action is smooth, which effectively avoids the displacement of the battery during the welding process and improves the welding accuracy and efficiency.

[0017] (2) This application achieves efficient cleaning of the welding area through the linkage design of the dust removal components. When the slider moves, it drives the connecting rod and the push plate to squeeze the airbag, generating a directional airflow that is sprayed out through the dust blower, effectively removing dust and debris from the battery surface; at the same time, the toothed plate and gear mesh to drive the threaded rod to rotate, causing the dust blower to move laterally and expand the cleaning range. This component uses existing moving parts as a power source, does not require an independent control system, is energy-saving and highly practical, significantly reduces the risk of welding defects caused by contaminants, and improves the quality of the weld.

[0018] (3) This application incorporates protective components that effectively protect operators and equipment from the effects of welding sparks and intense light radiation. Through the flipping of the protective plate and the linkage design of the positioning block, the position of the protective plate can be flexibly adjusted according to the needs of the welding process, ensuring that the laser welding area is completely shielded and preventing injury caused by sparks. At the same time, the retractable design of the protective plate ensures ease of operation, avoiding interference with battery handling and transfer operations, and achieving high safety and high efficiency in the welding process. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is the invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a side cross-sectional view of the present invention; Figure 4 This is the invention Figure 3 Enlarged structural diagram at point B; Figure 5 This is a partial cross-sectional structural schematic diagram of the present invention; Figure 6 This is a top cross-sectional view of the present invention; Figure 7 This is the invention Figure 6 Enlarged structural diagram at point C.

[0020] In the above image, 1. Workbench; 2. Mounting slot; 3. Mounting frame; 4. Laser welding gun; 5. Receiving roller; 61. Fixed plate; 62. Rotating shaft; 63. Rotating plate; 64. C-shaped groove; 65. Sliding shaft; 66. Lifting rod; 67. Connecting plate; 68. Transfer rod; 69. Pressure rod; 610. Rotating rod; 611. Moving cylinder; 612. Spiral groove; 613. Movable shaft; 614. Connecting rod A; 615. Connecting rod B; 616. Connecting shaft; 617. Positioning plate; 618. Guide rail; 619. Slide rail; 620. Slider; 621. Vertical... 622. Groove; 623. Spring A; 624. Horizontal plate; 625. Slide groove; 626. Receiving groove; 7. Dust removal assembly; 71. Mounting box; 72. Airbag; 73. Push plate; 74. Connecting rod; 75. Conveying hose; 76. Connecting pipe; 77. Dust suction hood; 78. Gear; 79. Threaded rod; 710. Moving block; 711. Connecting block A; 712. Toothed plate; 8. Protective assembly; 81. Mounting shaft; 82. Protective plate; 83. Linkage rod; 84. Linkage shaft; 85. Connecting block B; 86. Rectangular frame; 87. Through groove. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0025] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Example 1, please refer to Figure 1 - Figure 7 This embodiment provides a laser welding device for lithium battery processing, including: a worktable 1; a mounting groove 2, which is formed at the upper end of the worktable 1; a mounting frame 3, which is fixedly connected to the upper end of the worktable 1; a laser welding gun 4, which is disposed at the lower end of the mounting frame 3; and a receiving roller 5, which is fixedly connected to the inner wall of the mounting groove 2. A fixed plate 61 is fixedly connected to the upper end of the workbench 1. A motor is fixedly connected to the back of the fixed plate 61. A rotating shaft 62 is fixedly connected to the output end of the motor. A rotating plate 63 is fixedly connected to the other end of the rotating shaft 62. A sliding groove 624 is formed in the middle of the rotating plate 63. A U-shaped groove 64 is formed on the outer wall of the fixed plate 61. A sliding shaft 65 is slidably connected inside the U-shaped groove 64. A lifting rod 66 is rotatably connected to the end of the sliding shaft 65 away from the U-shaped groove 64. The sliding shaft 65 is slidably connected to the inner wall of the sliding groove 624. A connecting plate 67 is fixedly connected to the bottom of the lifting rod 66. The outer wall of 67 is fixedly connected to a transfer rod 68 and a pressure rod 69. The bottom of the inner side of the mounting groove 2 is rotatably connected to a rotating rod 610. The outer wall of the rotating rod 610 is movably fitted with a movable cylinder 611. The outer wall of the rotating rod 610 is provided with a spiral groove 612. The inner wall of the movable cylinder 611 is fixedly connected to a movable shaft 613. The outer wall of the rotating rod 610 is fixedly fitted with a connecting rod A614. The two ends of the connecting rod A614 are hinged to a connecting rod B615 through a pin. The other end of the connecting rod B615 is rotatably connected to a connecting shaft 616. The top of the connecting shaft 616 is fixedly connected to a positioning plate 617.

[0028] The inner wall of the mounting groove 2 is provided with a receiving groove 625. A guide rail 618 is fixedly connected inside the receiving groove 625. The positioning plate 617 is slidably connected to the outer wall of the guide rail 618, realizing the flexible sliding function of the positioning plate 617 on the guide rail 618. It can move smoothly under the guidance of the guide rail 618, while also ensuring the stability and accuracy of the entire structure.

[0029] A slide rail 619 is fixedly connected to the outer wall of the fixed plate 61, and a slider 620 is slidably connected to the outer wall of the slide rail 619. The top of the lifting rod 66 slides through the slider 620, allowing the slider 620 to slide smoothly along the outer wall of the slide rail 619. A vertical groove 621 is provided inside the mounting groove 2. A horizontal plate 623 is fixedly connected to the outer wall of the moving cylinder 611. One end of the horizontal plate 623 is slidably connected to the inside of the vertical groove 621. A spring A622 is fixedly connected to the bottom of the inner wall of the vertical groove 621, and the upper end of the spring A622 is fixedly connected to the bottom of the horizontal plate 623.

[0030] In use, the lithium battery to be welded is first placed on the upper end of the transfer rod 68, and then the motor is started to drive the rotating shaft 62 to rotate. The rotating shaft 62 drives the rotating plate 63 to rotate. When the rotating plate 63 rotates, the sliding groove 624 it opens will drive the sliding shaft 65 to slide in the C-shaped groove 64. At the same time, the sliding of the sliding shaft 65 in the sliding groove 624 cooperates with the trajectory of the C-shaped groove 64, so that the lifting rod 66 can move back and forth and up and down under the guidance of the slider 620. Then the lifting rod 66 will drive the connecting plate 67, the transfer rod 68 and the battery on its upper end to rise to a certain height and move towards the receiving roller 5. At the same time, when the lifting rod 66 moves back and forth, it will drive the slider 620 to slide on the outer wall of the slide rail 619. When it moves to the upper end of the receiving roller 5, the lifting rod 66 will drive the connecting plate 67 and the transfer rod 68 to descend. Then the transfer rod 68 will pass through the gap of the receiving roller 5, so that the battery can be left on the upper end of the receiving roller 5. At this time, as the connecting plate 67 continues to descend, the pressure bar 69 on its side will press the horizontal plate 623 downward. After being subjected to force, the horizontal plate 623 slides downward along the vertical groove 621 and compresses the spring A622. At the same time, the horizontal plate 623 drives the moving cylinder 611 to move downward synchronously. The movable shaft 613 on the inner wall of the moving cylinder 611 slides in the spiral groove 612 on the outer wall of the rotating rod 610, thereby driving the rotating rod 610 to rotate. When the rotating rod 610 rotates, it drives the connecting rod A614 to rotate synchronously. The connecting rod A614 pulls the connecting rod B615 through the pins at both ends. The connecting rod B615 then drives the positioning plate 617 to slide inward along the guide rail 618 through the connecting shaft 616, realizing the automatic positioning and clamping of the lithium battery on the upper end of the receiving roller 5, effectively preventing the battery from shifting during the welding process. Meanwhile, as the lifting rod 66 moves back and forth, the slider 620 at its top slides synchronously along the slide rail 619, ensuring the stability of the lifting motion. After the transfer rod 68 completes the battery transfer, it returns to its original position along with the lifting rod 66. Under the action of elastic potential energy, the spring A622 pushes the horizontal plate 623 and the moving cylinder 611 upward, and the movable shaft 613 drives the rotating rod 610 to rotate in the opposite direction, so that the positioning plate 617 returns to its initial position, preparing for the next battery positioning.

[0031] Example 2, please refer to Figure 1 - Figure 7Based on Embodiment 1, a dust removal component 7 is installed on the upper end of the workbench 1. The dust removal component 7 includes a mounting box 71, which is fixedly connected to the upper end of the workbench 1. An airbag 72 is provided inside the mounting box 71. A connecting rod 74 is fixedly connected to the outer wall of the slider 620. A push plate 73 is fixedly connected to the other end of the connecting rod 74. A conveying hose 75 is connected to the air outlet of the airbag 72. A connecting pipe 76 is installed at the other end of the conveying hose 75. A dust blowing hood 77 is installed at the other end of the connecting pipe 76. A threaded rod 79 is rotatably connected to the outer wall of the mounting box 71. A gear 78 is fixedly sleeved on the outer wall of the threaded rod 79. A moving block 710 is threadedly connected to the outer wall of the threaded rod 79. A connecting block A711 is fixedly connected to the outer wall of the moving block 710. The other end of the connecting block A711 is fixedly connected to the connecting pipe 76. A toothed plate 712 is fixedly connected to the outer wall of the connecting rod 74.

[0032] The bottom of the movable block 710 is slidably connected to the surface of the worktable 1, thereby ensuring that the movable block 710 will not rotate with the threaded rod 79. The toothed plate 712 meshes with the gear 78, and the meshing of the toothed plate 712 with the gear 78 not only ensures the smooth operation of the mechanical system, but also improves the overall transmission efficiency, making the interaction between the two more reliable and efficient.

[0033] In use, when the slider 620 moves towards the receiving roller 5, it drives the connecting rod 74 to move. The connecting rod 74 then drives the push plate 73 to slide inside the mounting box 71, compressing the airbag 72. The compressed airbag 72 is then transported through the delivery hose 75 to the connecting pipe 76, and finally blown towards the lithium battery welding area through the dust blower 77, cleaning the surface dust and debris. Simultaneously, the movement of the connecting rod 74 drives the toothed plate 712 to move synchronously. Since the toothed plate 712 meshes with the gear 78, the gear 78 drives the threaded rod 79 to rotate. The rotation of the threaded rod 79 causes the moving block 710, connected to the outer wall thread, to slide along the surface of the worktable 1. The moving block 710, through the connecting block A711, drives the connecting pipe 76 and the dust blower 77 to move laterally, expanding the dust blowing range and ensuring the cleanliness of the welding area. When the slider 620 is reset, the push plate 73 retracts with the connecting rod 74, the airbag 72 draws in air under its own elasticity, and at the same time the toothed plate 712 moves in the opposite direction, causing the gear 78 and the threaded rod 79 to flip, so that the moving block 710 drives the dust blower 77 back to the initial position, completing one dust removal cycle.

[0034] Example 3, please refer to Figure 1 - Figure 7Based on embodiment 1, a protective component 8 is assembled on the upper end of the workbench 1. The protective component 8 includes a mounting shaft 81, which is rotatably connected to the upper end of the workbench 1. A protective plate 82 and a linkage rod 83 are fixedly connected to the outer wall of the mounting shaft 81. A linkage shaft 84 is fixedly connected to the upper end of the linkage rod 83. A connecting block B85 is fixedly connected to the upper end of a positioning plate 617 on one side. A rectangular frame 86 is fixedly connected to the upper end of the connecting block B85.

[0035] The outer wall of the linkage shaft 84 is slidably connected to the inner wall of the rectangular frame 86, allowing the linkage shaft 84 to move flexibly inside the rectangular frame 86 while maintaining structural stability. A through groove 87 is provided at the upper end of the receiving groove 625, and the connecting block B85 is slidably connected to the inner wall of the through groove 87.

[0036] In use, when the positioning plate 617 on one side moves towards the center, the connecting block B85 at its upper end slides synchronously along the through groove 87. The connecting block B85 drives the rectangular frame 86 to move inward. The inner wall of the rectangular frame 86 slides in conjunction with the linkage shaft 84, thereby pushing the linkage rod 83 to flip upward around the mounting shaft 81. The linkage rod 83 drives the protective plate 82 to rotate synchronously to a vertical position, forming a circumferential shield for the laser welding area, effectively blocking sparks and strong light radiation generated during the welding process. When the positioning plate 617 retracts under the action of the spring A622, the connecting block B85 drives the rectangular frame 86 to slide in the opposite direction. The linkage shaft 84 moves with the rectangular frame 86 and pulls the linkage rod 83 to flip downward, causing the protective plate 82 to rotate to a horizontal position and be stored above the worktable 1, avoiding interference with the battery loading, unloading, and transfer process, and achieving a dynamic balance between protective function and operational convenience.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A laser welding apparatus for lithium battery processing, characterized in that, include: Workbench; The mounting slot is located at the upper end of the workbench; Mounting bracket, which is fixedly connected to the upper end of the workbench; A laser welding gun, wherein the laser welding gun is disposed at the lower end of the mounting bracket; A receiving roller, which is fixedly connected to the inner wall of the mounting groove; A fixed plate is fixedly connected to the upper end of the workbench. A motor is fixedly connected to the back of the fixed plate. A rotating shaft is fixedly connected to the output end of the motor. A rotating plate is fixedly connected to the other end of the rotating shaft. A sliding groove is formed in the middle of the rotating plate. A C-shaped groove is formed on the outer wall of the fixed plate. A sliding shaft is slidably connected inside the C-shaped groove. A lifting rod is rotatably connected to the end of the sliding shaft away from the C-shaped groove. The sliding shaft is slidably connected to the inner wall of the sliding groove. A connecting plate is fixedly connected to the bottom of the lifting rod. A transfer rod and a pressure rod are fixedly connected to the outer wall of the connecting plate. A rotating rod is rotatably connected to the bottom of the mounting groove. A movable cylinder is movably sleeved on the outer wall of the rotating rod. A spiral groove is formed on the outer wall of the rotating rod. A movable shaft is fixedly connected to the inner wall of the movable cylinder. A connecting rod A is fixedly sleeved on the outer wall of the rotating rod. Connecting rod B is hinged to both ends of connecting rod A by a pin. A connecting shaft is rotatably connected to the other end of connecting rod B. A positioning plate is fixedly connected to the top of the connecting shaft.

2. The laser welding apparatus for lithium battery processing according to claim 1, characterized in that, The inner wall of the mounting groove is provided with a receiving groove, and a guide rail is fixedly connected inside the receiving groove. The positioning plate is slidably connected to the outer wall of the guide rail.

3. The laser welding apparatus for lithium battery processing according to claim 1, characterized in that, The outer wall of the fixed plate is fixedly connected to a slide rail, and the outer wall of the slide rail is slidably connected to a slider, with the top of the lifting rod sliding through the slider.

4. The laser welding apparatus for lithium battery processing according to claim 1, characterized in that, The mounting groove has a vertical groove inside. A horizontal plate is fixedly connected to the outer wall of the movable cylinder. One end of the horizontal plate is slidably connected to the inside of the vertical groove. A spring A is fixedly connected to the bottom of the inner wall of the vertical groove. The upper end of the spring A is fixedly connected to the bottom of the horizontal plate.

5. The laser welding apparatus for lithium battery processing according to claim 3, characterized in that, The upper end of the workbench is equipped with a dust removal component, which includes a mounting box fixedly connected to the upper end of the workbench. An airbag is installed inside the mounting box. A connecting rod is fixedly connected to the outer wall of the slider. A push plate is fixedly connected to the other end of the connecting rod. The air outlet of the airbag is connected to a conveying hose. A connecting pipe is installed at the other end of the conveying hose. A dust blowing hood is installed at the other end of the connecting pipe. A threaded rod is rotatably connected to the outer wall of the mounting box. A gear is fixedly sleeved on the outer wall of the threaded rod. A moving block is threadedly connected to the outer wall of the threaded rod. A connecting block A is fixedly connected to the outer wall of the moving block. The other end of the connecting block A is fixedly connected to the connecting pipe. A toothed plate is fixedly connected to the outer wall of the connecting rod.

6. The laser welding apparatus for lithium battery processing according to claim 5, characterized in that, The bottom of the movable block is slidably connected to the surface of the worktable.

7. The laser welding apparatus for lithium battery processing according to claim 6, characterized in that, The toothed plate meshes with the gear, and the toothed plate meshes with the gear.

8. The laser welding apparatus for lithium battery processing according to claim 1, characterized in that, The upper end of the workbench is equipped with a protective component, which includes a mounting shaft rotatably connected to the upper end of the workbench. A protective plate and a linkage rod are fixedly connected to the outer wall of the mounting shaft. A linkage shaft is fixedly connected to the upper end of the linkage rod. A connecting block B is fixedly connected to the upper end of the positioning plate on one side. A rectangular frame is fixedly connected to the upper end of the connecting block B.

9. The laser welding apparatus for lithium battery processing according to claim 8, characterized in that, The outer wall of the linkage shaft is slidably connected to the inner wall of the rectangular frame.

10. A laser welding apparatus for lithium battery processing according to claim 2, characterized in that, The upper end of the receiving groove is provided with a through groove, and the connecting block B is slidably connected to the inner wall of the through groove.

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