Lithium battery shell metal laser cutting equipment and method

Abstract

The invention relates to the technical field of laser cutting, in particular to lithium battery shell metal laser cutting equipment and method. Comprising a machine body, a laser cutting knife is arranged at the bottom of a telescopic part, an electric rotating disc is arranged below the laser cutting knife, extension plates are arranged on the two sides of the electric rotating disc, clamping assemblies are arranged in the extension plates and used for clamping and fixing batteries, and rotating assemblies are arranged on the surfaces of the extension plates in a sliding mode and used for driving the batteries clamped in the clamping assemblies to rotate. A servo motor drives a first gear to rotate, the first gear drives a second gear to rotate in an engaged mode, at the moment, a cut battery metal shell continues to rotate due to friction force, and due to the fact that a peeling knife is fixed to the cutting position, when a cut battery drives the cut shell to rotate, due to the fact that the strength of the battery metal shell is low, the peeling knife cannot be damaged. And the peeling knife automatically peels the battery shell, so that the automatic peeling of the battery metal shell is realized, and the collection safety is improved.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting technology, and in particular to a lithium battery shell metal laser cutting device and method. Background Art

[0002] Lithium batteries have the advantages of high energy density, good safety performance and low cost, and have broad application prospects in the field of new energy. General batteries have protective shells, and lithium-ion batteries are no exception. The main purpose of the shell is to protect the internal materials of lithium-ion batteries from damage. Lithium batteries often have cylindrical steel shells or aluminum shells as lithium battery shells. However, when recycling lithium batteries, the cylindrical shells need to be cut quickly.

[0003] There are many existing technologies for metal laser cutting devices, such as: Chinese patent publication number CN111633343A discloses a laser automatic cutting machine for waste lithium battery module shells, including a storage rack, a first feeding device, a loading device, a clamping device, a laser cutting machine, a second feeding device, and a discharge table. A storage rack and a loading device are provided below the first feeding device, and the storage rack and the loading device are respectively provided at both ends of the first feeding device. A clamping device is provided on one side of the loading device, a laser cutting machine is provided above the clamping device, a second feeding device is provided on one side of the clamping device, and a discharge table is provided on the lower end side of the second feeding device. The whole process of automatic feeding, clamping, cutting, conveying, and discharging of waste batteries is realized, high automation is achieved, work efficiency is improved, and the current problems of low automation and low work efficiency are solved. At the same time, manpower is saved, and the whole processing process is safe, efficient, and cost-saving.

[0004] At present, the traditional laser cutting device is used to perform laser cutting on the battery placed on the workbench. However, during the battery cutting process, only a straight line cut can be made on the battery surface, which makes it difficult to remove the electrode material inside the battery after the battery cutting is completed. Moreover, since the metal of the battery shell is thin, it is easy to be scratched during the peeling process of the metal shell, causing safety hazards.

[0005] Therefore, a lithium battery shell metal laser cutting device and method are proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a lithium battery shell metal laser cutting device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, one of the purposes of the present invention is to provide a lithium battery shell metal laser cutting device, including a body, the body including a movable rail arranged at the top, the movable rail surface is provided with a movable block, the movable block bottom is provided with a telescopic member, the telescopic member bottom is provided with a laser cutting knife, the laser cutting knife is used for laser cutting of the battery, an electric turntable is provided below the laser cutting knife, extension plates are provided on both sides of the electric turntable, a clamping assembly is provided in the extension plate, the clamping assembly is used for clamping and fixing the battery, a rotating assembly is provided on the surface of the extension plate for sliding, the rotating assembly is used to drive the battery clamped in the clamping assembly to rotate, the laser cutting knife is used to perform laser cutting on both sides of the rotating battery, and at the same time, the rotating assembly is used to blow air to cool the battery during cutting, a peeling assembly is provided on the top of the extension plate, the peeling assembly is used to block the incision where the cutting is completed, and when the rotating assembly drives the battery to rotate, the peeling assembly peels the cut shell of the battery.

[0008] As a further improvement of the present technical solution, the clamping assembly includes a rotating motor arranged on the side wall of the extension plate, a screw rod is provided at the output end of the rotating motor, the thread on the screw rod surface is symmetrical, a movable plate is provided on the screw rod surface, and the movable plate moves on both sides of the screw rod surface.

[0009] As a further improvement of the technical solution, a bearing is provided on the inner side of the movable plate, and a toothed plate is clamped inside the bearing, so that the toothed plate clamps and fixes the two ends of the battery when the toothed plate moves relatively.

[0010] As a further improvement of the present technical solution, the rotating assembly includes a cylinder perpendicular to one side of the battery, the piston rod at the end of the cylinder is provided with a slide plate, the surface of the slide plate is provided with a partition, the partition divides the interior of the slide plate into three spaces, namely a middle space and a side space, the side spaces are distributed on both sides of the middle space with the middle space as the axis of symmetry, a servo motor is provided on one side of the middle space, the output shaft at the end of the servo motor is provided with a first gear, a second gear is meshed above the first gear, an extension rod is provided at the center of the second gear, the extension rod passes through the side space and a main gear is provided at the end.

[0011] As a further improvement of the technical solution, a secondary gear is provided on one side of the side space, the secondary gear is meshed with the main gear, a connecting rod is provided at the end of the secondary gear, a worm is provided on the surface of the connecting rod, a turbine is provided above the worm, and fan blades are provided at the end of the turbine.

[0012] As a further improvement of the technical solution, a manipulator is provided on the side of the extension plate away from the rotating assembly, and the manipulator is used to grab the peeled internal electrode material of the battery.

[0013] As a further improvement of the technical solution, the peeling assembly includes a long rod arranged between the fixed blocks at the top of the extension plate, a rotating rod is rotatably provided on the surface of the long rod, a peeling knife is provided on the top of the rotating rod, and a reset spring is provided on the surface of the long rod, and the two ends of the reset spring are respectively connected to the rotating rod and the inner wall of the fixed block. In the natural state, the rotating rod forms an angle of 150° with the vertical plane.

[0014] As a further improvement of the technical solution, a limiting groove is provided on the surface of the rotating rod, a pull rod is slidably provided in the limiting groove, an elastic member is provided between the pull rod and the outer wall of the fixed block, and the pull rod is used to limit and fix the rotating rod.

[0015] The second object of the present invention is to provide a method for laser cutting a lithium battery casing metal, comprising the following steps: S1. Place the battery inside the extension plate, and clamp the two ends of the battery with the clamping assembly. Since the laser cutting knife does not need to contact the battery surface during the laser cutting process, the battery clamped between the clamping assemblies can be stably cut; S2. When the battery is fixed between the clamping components, the rotating component rotates and drives the battery to rotate through friction, and the moving block drives the laser cutting knife to move to one end of the battery through the moving rail, and the laser cutting knife performs laser cutting on one end of the rotating battery. When the cutting on one side is completed, the laser cutting knife moves to the other side to cut the end of the battery. After the cutting is completed, the rotating component stops rotating, and the laser cutting knife moves horizontally between the two sides of the battery, and laser cutting is performed on the surface of the battery at the same time; S3. When the battery surface is cut, the peeling assembly is rotated to the center line of the battery cut. At this time, the battery that has been cut is driven to rotate by the rotating assembly, and the peeling assembly automatically peels the battery shell, thereby realizing automatic peeling of the battery technical shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the lithium battery shell metal laser cutting device and method, the slide plate is driven to move in the horizontal direction by the piston rod at the end of the cylinder until the side wall of the second gear is tightly fitted with the battery surface, and the first gear is driven to rotate by the output end of the servo motor, and the second gear meshes and rotates with the first gear. When the second gear rotates, the battery is driven to rotate by friction, and the two sides of the battery are cut by the laser cutting knife. After the cutting is completed, the separation speed of the battery metal shell and the internal electrode material is improved, and the collection efficiency of the battery shell metal is improved.

[0017] 2. In the lithium battery shell metal laser cutting equipment and method, the servo motor drives the first gear to rotate, and the first gear drives the second gear to mesh and rotate. At this time, the cut battery metal shell continues to rotate due to friction. Since the stripping knife is fixed at the cutting position, when the cut battery drives the cut shell to rotate, the stripping knife automatically strips the battery shell due to the low strength of the battery metal shell, thereby realizing automatic stripping of the battery technical shell and improving the safety of collection.

[0018] 3. In the lithium battery casing metal laser cutting device and method, the battery is placed inside the extension plate, and the output shaft of the rotating motor drives the screw to rotate. The movable plates on both sides of the screw surface move relatively. The movement of the movable plates drives the toothed plates above to clamp the two ends of the battery. Since the laser cutting knife does not need to contact the battery surface during the laser cutting process, it ensures that the battery clamped between the toothed plates can be cut quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main view of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the electric turntable of the present invention; Figure 3 It is a schematic diagram of the structure of the rotating assembly of the present invention; Figure 4 is a cross-sectional view of a rotating assembly of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of point A; Figure 6 It is a schematic diagram of the structure of the clamping assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the peeling assembly of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of point B.

[0020] The meaning of each number in the figure is: 100, machine body; 101, moving rail; 102, moving block; 103, telescopic member; 104, laser cutting knife; 200, electric turntable; 201, extension plate; 202, manipulator; 300, clamping assembly; 301, rotating motor; 302, screw rod; 303, moving plate; 304, bearing; 305, toothed plate; 400, rotating assembly; 401, cylinder; 402, slide plate; 403, servo motor; 404, first gear; 405, second gear; 406, main gear; 407, sub-gear; 408, connecting rod; 409, worm; 410, turbine; 411, fan blade.

[0021] 500, peeling assembly; 501, long rod; 502, rotating rod; 503, return spring; 504, peeling knife; 505, pulling rod; 506, elastic member. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1-8 As shown, one of the purposes of the present invention is to provide a lithium battery shell metal laser cutting device, including a body 100, the body 100 includes a moving rail 101 arranged on the top, a moving block 102 is arranged on the surface of the moving rail 101, a telescopic member 103 is arranged at the bottom of the moving block 102, a laser cutting knife 104 is arranged at the bottom of the telescopic member 103, the laser cutting knife 104 is used for laser cutting of the battery, an electric turntable 200 is arranged below the laser cutting knife 104, extension plates 201 are arranged on both sides of the electric turntable 200, a clamping assembly 300 is arranged in the extension plate 201, and the clamping assembly Part 300 is used to clamp and fix the battery. A rotating component 400 is slidably provided on the surface of the extension plate 201. The rotating component 400 is used to drive the battery clamped in the clamping component 300 to rotate. The laser cutting knife 104 performs laser cutting on both sides of the rotating battery. At the same time, the rotating component 400 blows air to cool the battery during cutting. A peeling component 500 is provided on the top of the extension plate 201. The peeling component 500 is used to block the incision where the cutting is completed. When the rotating component 400 drives the battery to rotate, the peeling component 500 peels the cut outer shell of the battery.

[0024] When cutting the battery, since the battery surface is in an arc shape, it is easy to roll during the cutting process, resulting in the deviation of the cutting position, requiring secondary cutting, and affecting the cutting efficiency. Therefore, the clamping assembly 300 includes a rotating motor 301 arranged on the side wall of the extension plate 201, and a screw rod 302 is arranged at the output end of the rotating motor 301. The thread on the surface of the screw rod 302 is symmetrical, and a moving plate 303 is arranged on the surface of the screw rod 302. The moving plate 303 moves on both sides of the surface of the screw rod 302. A bearing 304 is arranged on the inner side of the moving plate 303, and a toothed plate 305 is clamped inside the bearing 304. When the toothed plate 305 moves relatively, the two ends of the battery are clamped and fixed. By placing the battery on the extension plate Inside 201, the output shaft of the rotating motor 301 drives the screw rod 302 to rotate, and the movable plates 303 provided on both sides of the surface of the screw rod 302 move relative to each other. The movement of the movable plate 303 drives the toothed plate 305 provided above to clamp the two ends of the battery. Since the laser cutting knife 104 does not need to contact the battery surface during the laser cutting process of the battery surface, it is ensured that the battery clamped between the toothed plates 305 can be cut quickly, and the battery rolling during the cutting process is prevented from causing incomplete cutting, thereby improving the cutting efficiency. Since the toothed plates 305 are clamped on the inner wall of the bearing 304, at the same time, the battery fixed between the toothed plates 305 can still rotate when being pushed by external force.

[0025] During the cutting process of the battery shell, the operator is required to separate the electrode material inside the battery from the shell metal, so as to collect and recycle the metal shell of the battery. The traditional cutting method cuts the battery surface, which makes it difficult to separate the electrode material inside the battery from the battery, affecting the collection efficiency of the battery shell metal. Therefore, the rotating component 400 includes a cylinder 401 perpendicular to one side of the battery, and the piston rod at the end of the cylinder 401 is provided with a slide plate 402. The surface of the slide plate 402 is provided with a partition, and the partition divides the inside of the slide plate 402 into three spaces, namely a middle space and a side space. The side spaces are distributed on both sides of the middle space with the middle space as the symmetry axis. A servo motor 403 is provided on one side of the middle space, and a first gear 404 is provided on the output shaft at the end of the servo motor 403. A second gear 405 is meshed above the first gear 404, and an extension rod is provided at the center of the second gear 405. The extension rod passes through the side space and a main gear 406 is provided at the end. When the battery is fixed in When the toothed plates 305 are between the toothed plates 305, the piston rod at the end of the cylinder 401 drives the slide plate 402 to move in the horizontal direction until the side wall of the second gear 405 is tightly fitted with the surface of the battery, and the first gear 404 is driven to rotate by the output end of the servo motor 403, and the second gear 405 meshes and rotates with the first gear 404. When the second gear 405 rotates, the battery is driven to rotate by friction, and the moving block 102 drives the laser cutting knife 104 to move to one end of the battery through the moving rail 101, and the laser cutting knife 104 is used to laser cut the end of one side of the rotating battery. When the cutting of one side is completed, the laser cutting knife 104 moves to the other side to cut the end of the battery. After the cutting is completed, the servo motor 403 stops rotating, and the laser cutting knife 104 moves horizontally between the two sides of the battery, and at the same time, the battery surface is laser cut. After the cutting is completed, the separation speed of the battery metal shell and the internal electrode material is improved, and the collection efficiency of the battery shell metal is improved.

[0026] Taking into account that more heat energy is generated during the laser cutting process, in order to avoid spontaneous combustion of the battery due to overheating, a sub-gear 407 is provided on one side of the side space, and the sub-gear 407 is meshed with the main gear 406. A connecting rod 408 is provided at the end of the sub-gear 407, and a worm 409 is provided on the surface of the connecting rod 408. A turbine 410 is provided above the worm 409, and a fan blade 411 is provided at the end of the turbine 410. During the rotational cutting process of the battery end, the sub-gear 407 is driven to mesh and rotate by the main gear 406. The gear ratio of the main gear 406 to the sub-gear 407 is 1:4. Therefore, the connecting rod 408 provided at the end of the sub-gear 407 drives the worm 409 to rotate rapidly, and the turbine 410 meshed above the worm 409 drives the fan blade 411 to rotate to blow air to the cutting position, thereby avoiding spontaneous combustion of the battery due to excessive temperature during the cutting process, thereby avoiding the occurrence of safety hazards.

[0027] When the battery peeling is completed, since the electrode material inside the battery has a certain toxicity, it may cause accidental inhalation when the electrode material is collected and processed, affecting health. Therefore, a manipulator 202 is provided on the side of the extension plate 201 away from the rotating component 400. The manipulator 202 is used to grab the peeled electrode material inside the battery. The peeled electrode material is grabbed by the manipulator 202, thereby reducing the probability of contact between the operator and the electrode material and ensuring the health of the operator.

[0028] When the battery is cut, the metal shell at the cutting position is relatively sharp and may be scratched during the process of manually separating and collecting the cut metal shell. Therefore, the peeling component 500 includes a long rod 501 arranged between the fixed blocks at the top of the extension plate 201, and a rotating rod 502 is rotatably arranged on the surface of the long rod 501. A reset spring 503 is arranged on the surface of the long rod 501. The two ends of the reset spring 503 are respectively connected to the rotating rod 502 and the inner wall of the fixed block. In a natural state, the rotating rod 502 forms an angle of 150° with the vertical plane, and a limiting groove is arranged on the surface of the rotating rod 502. A pull rod 505 is slidingly arranged in the limiting groove. An elastic member 506 is arranged between the pull rod 505 and the outer wall of the fixed block. The pull rod 505 is used to limit and fix the rotating rod 502. When the cutting of the battery surface is completed, the pull rod 505 is pulled away from the inside of the rotating rod 502. The resistance encountered by 502 disappears, and the rotating rod 502 is rotated on the surface of the long rod 501 by the force of the return spring 503. The peeling knife 504 provided at the end of the rotating rod 502 rotates to the center line of the battery cutting. At this time, the servo motor 403 drives the first gear 404 to rotate, and the first gear 404 drives the second gear 405 to mesh and rotate. At this time, the cut battery metal shell continues to rotate due to the friction force. Since the peeling knife 504 is fixed at the cutting position, when the cut battery drives the cut shell to rotate, due to the low strength of the battery metal shell, the peeling knife 504 automatically peels the battery shell, thereby realizing automatic peeling of the battery technical shell and improving the safety of collection.

[0029] When in use, the battery is placed inside the extension plate 201, and the output shaft of the rotating motor 301 drives the screw rod 302 to rotate. The movable plates 303 provided on both sides of the surface of the screw rod 302 move relatively. The movable plates 303 move to drive the toothed plates 305 provided above to clamp the two ends of the battery. Since the laser cutting knife 104 does not need to contact the battery surface during the laser cutting process of the battery surface, it is ensured that the battery clamped between the toothed plates 305 can be cut quickly, and the battery rolling during the cutting process can be avoided, resulting in incomplete cutting, thereby improving the cutting efficiency and the battery When fixed between the toothed plates 305, the piston rod at the end of the cylinder 401 drives the slide plate 402 to move in the horizontal direction until the side wall of the second gear 405 is tightly fitted with the surface of the battery, and the output end of the servo motor 403 drives the first gear 404 to rotate, and the second gear 405 meshes and rotates with the first gear 404. When the second gear 405 rotates, the battery is driven to rotate by friction, and the moving block 102 drives the laser cutting knife 104 to move to one end of the battery through the moving rail 101, and the laser cutting knife 104 performs laser cutting on one end of the rotating battery. When one side is cut When the cutting is completed, the laser cutting knife 104 moves to the other side to cut the end of the battery. After the cutting is completed, the servo motor 403 stops rotating, and the laser cutting knife 104 moves horizontally between the two sides of the battery, and laser cuts the battery surface at the same time. After the cutting is completed, the separation speed of the battery metal shell and the internal electrode material is increased, and the collection efficiency of the battery shell metal is improved. When the battery surface is cut, the pull rod 505 is pulled away from the inside of the rotating rod 502. Therefore, the resistance of the rotating rod 502 disappears, and the rotating rod 502 is rotated in the length by the force of the return spring 503. On the surface of the rod 501, a peeling knife 504 is provided at the end of the rotating rod 502 to rotate to the center line of the battery cutting. At this time, the first gear 404 is driven to rotate by the servo motor 403, and the first gear 404 drives the second gear 405 to engage and rotate. At this time, the cut battery metal shell continues to rotate due to the friction force. Since the peeling knife 504 is fixed at the cutting position, when the cut battery drives the cut shell to rotate, due to the low strength of the battery metal shell, the peeling knife 504 automatically peels the battery shell, thereby realizing automatic peeling of the battery metal shell and improving the safety of collection.

[0030] The second object of the present invention is to provide a lithium battery shell metal laser cutting method, including any one of the lithium battery shell metal laser cutting equipment described above, comprising the following steps: S1. Place the battery inside the extension plate 201, and clamp the two ends of the battery with the clamping assembly 300. Since the laser cutting knife 104 does not need to contact the battery surface during the laser cutting process, the battery clamped between the clamping assembly 300 can be stably cut; S2, when the battery is fixed between the clamping components 300, the rotating component 400 rotates to drive the battery to rotate through friction, and the moving block 102 drives the laser cutting knife 104 to move to one end of the battery through the moving rail 101, and the laser cutting knife 104 performs laser cutting on one end of the rotating battery. When the cutting on one side is completed, the laser cutting knife 104 moves to the other side to cut the end of the battery. After the cutting is completed, the rotating component 400 stops rotating, and the laser cutting knife 104 moves horizontally between the two sides of the battery, and laser cutting is performed on the surface of the battery at the same time; S3. When the battery surface is cut, the peeling assembly 500 is rotated to the center line of the battery cut. At this time, the rotating assembly 400 drives the cut battery to engage and rotate, and the peeling assembly 500 automatically peels the battery shell, thereby realizing automatic peeling of the battery technical shell.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lithium battery shell metal laser cutting equipment, characterized by: The invention comprises a body (100), wherein the body (100) comprises a moving rail (101) arranged at the top, a moving block (102) is arranged on the surface of the moving rail (101), a telescopic member (103) is arranged at the bottom of the moving block (102), a laser cutting knife (104) is arranged at the bottom of the telescopic member (103), the laser cutting knife (104) is used for laser cutting batteries, an electric turntable (200) is arranged below the laser cutting knife (104), extension plates (201) are arranged on both sides of the electric turntable (200), a clamping assembly (300) is arranged inside the extension plate (201), and the clamping assembly (300) is used for In order to clamp and fix the battery, a rotating assembly (400) is slidably provided on the surface of the extension plate (201), the rotating assembly (400) is used to drive the battery clamped in the clamping assembly (300) to rotate, and the laser cutting knife (104) is used to perform laser cutting on both sides of the rotating battery. At the same time, the rotating assembly (400) is used to blow air to cool the battery during cutting, and a peeling assembly (500) is provided on the top of the extension plate (201), the peeling assembly (500) is used to block the incision after cutting, and when the rotating assembly (400) drives the battery to rotate, the peeling assembly (500) peels the cut shell of the battery.

2. The lithium battery shell metal laser cutting equipment according to claim 1 is characterized in that: The clamping assembly (300) comprises a rotating motor (301) arranged on the side wall of the extension plate (201), a screw rod (302) being arranged at the output end of the rotating motor (301), the screw rod (302) having a symmetrical surface thread, a movable plate (303) being arranged on the surface of the screw rod (302), and the movable plate (303) being movable on both sides of the surface of the screw rod (302).

3. The lithium battery shell metal laser cutting equipment according to claim 2 is characterized in that: A bearing (304) is provided on the inner side of the movable plate (303), and a toothed plate (305) is clamped inside the bearing (304). When the toothed plate (305) moves relatively, the two ends of the battery are clamped and fixed.

4. The lithium battery casing metal laser cutting equipment according to claim 1 is characterized in that: The rotating assembly (400) comprises a cylinder (401) perpendicular to one side of the battery, a piston rod at the end of the cylinder (401) is provided with a slide plate (402), a partition is provided on the surface of the slide plate (402), the partition divides the inside of the slide plate (402) into three spaces, namely a middle space and a side space, the side spaces are distributed on both sides of the middle space with the middle space as a symmetric axis, a servo motor (403) is provided on one side of the middle space, an output shaft at the end of the servo motor (403) is provided with a first gear (404), a second gear (405) is meshed above the first gear (404), an extension rod is provided at the center of the second gear (405), the extension rod passes through the side space and a main gear (406) is provided at the end.

5. The lithium battery casing metal laser cutting equipment according to claim 4 is characterized in that: A secondary gear (407) is provided on one side of the side space, the secondary gear (407) being meshed with the main gear (406), a connecting rod (408) being provided at the end of the secondary gear (407), a worm (409) being provided on the surface of the connecting rod (408), a turbine (410) being provided above the worm (409), and a fan blade (411) being provided at the end of the turbine (410).

6. The lithium battery casing metal laser cutting equipment according to claim 1 is characterized in that: A manipulator (202) is provided on the side of the extension plate (201) away from the rotating assembly (400), and the manipulator (202) is used to grab the peeled internal electrode material of the battery.

7. The lithium battery casing metal laser cutting equipment according to claim 1 is characterized in that: The peeling assembly (500) comprises a long rod (501) arranged between the top fixed blocks of the extension plate (201); a rotating rod (502) is rotatably provided on the surface of the long rod (501); a peeling knife (504) is provided on the top of the rotating rod (502); a return spring (503) is provided on the surface of the long rod (501); two ends of the return spring (503) are respectively connected to the rotating rod (502) and the inner wall of the fixed block; in a natural state, the rotating rod (502) forms an angle of 150° with the vertical plane.

8. The lithium battery casing metal laser cutting equipment according to claim 7 is characterized in that: A limiting groove is provided on the surface of the rotating rod (502), a pull rod (505) is slidably arranged in the limiting groove, and an elastic member (506) is arranged between the pull rod (505) and the outer wall of the fixing block, and the pull rod (505) is used to limit and fix the rotating rod (502).

9. A method for realizing a lithium battery shell metal laser cutting method, comprising the lithium battery shell metal laser cutting device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, placing a battery inside the extension plate (201), and clamping the two ends of the battery with a clamping assembly (300); since the laser cutting knife (104) does not need to contact the surface of the battery during the laser cutting process, the battery clamped between the clamping assemblies (300) can be stably cut; S2, when the battery is fixed between the clamping components (300), the rotating component (400) rotates to drive the battery to rotate through friction, the moving block (102) drives the laser cutting knife (104) to move to one end of the battery through the moving rail (101), and the laser cutting knife (104) performs laser cutting on one end of the rotating battery. When the cutting on one side is completed, the laser cutting knife (104) moves to the other side to cut the end of the battery. After the cutting is completed, the rotating component (400) stops rotating, and the laser cutting knife (104) moves horizontally between the two sides of the battery, while laser cutting the surface of the battery; S3. When the battery surface is cut, the peeling assembly (500) is rotated to the center line of the battery cut. At this time, the rotating assembly (400) drives the cut battery to engage and rotate, and the peeling assembly (500) automatically peels the battery shell, thereby realizing automatic peeling of the battery technical shell.

Images