A spherical negative electrode material processing device for lithium battery production

Abstract

The invention discloses a spherical negative electrode material processing device for lithium battery production, comprising a positioning mechanism, a cutting mechanism and a control system, wherein the cutting mechanism comprises a moving component and a platform component, and the positioning mechanism comprises a pressing component and a suction cup component; the positioning component comprises a second bracket and a top plate fixed on the second bracket, a rack and a slide rail are respectively fixed to the bottom of the left and right sides of the top plate, the bottom of the rack and the slide rail are connected to a bearing plate through a slider, a second motor and a third cylinder are respectively fixed to the bottom of the bearing plate, a gear is fixed to the output end of the second motor, and the gear and the rack are meshed with each other; a plurality of cameras are fixed around the inner wall of the top plate, and the invention can judge whether the spherical particles of the spherical material are evenly distributed when the spherical material is made into a plate during laser cutting.

Description

Technical Field

[0001] The invention relates to the technical field of spherical negative electrode material processing, in particular to a spherical negative electrode material processing device for lithium battery production. Background Art

[0002] Spherical negative electrode materials have certain stacking properties, such as mesophase carbon microspheres, which can be densely stacked. This stacking property provides a certain feasibility basis for making them into plates, so that the spherical particles can combine with each other to form the structure of the plate under certain conditions.

[0003] It is used to build large-scale energy storage systems to store electrical energy, adjust the peak and valley differences of the power grid, and improve the stability and reliability of the power grid. For example, in energy storage power stations near renewable energy power plants such as solar and wind power, this plate can be used as a key component of energy storage batteries to store the electrical energy generated by unstable renewable energy so that it can be stably output when needed.

[0004] In the process of making spherical materials into plates, due to the characteristics of the shape and fluidity of spherical particles, it is easy to have uneven distribution of particles. This may lead to differences in the performance of different parts of the plate, affecting the overall performance and consistency of the battery. For example, the spherical particles may be densely packed in some areas, while relatively sparse in other areas, resulting in uneven current density distribution, affecting the charge and discharge efficiency and cycle life of the battery.

[0005] When producing spherical negative electrode plates, they need to be cut into different sizes according to usage. Generally speaking, they can be cut by mechanical cutting (such as sawing), laser cutting, etc. However, the existing laser cutting method cannot determine whether the spherical particles of the spherical material are evenly distributed when cutting spherical negative electrode plates.

[0006] Therefore, it is necessary to design a spherical negative electrode material processing device for lithium battery production, which can judge the quality of the plate made of the spherical material during laser cutting. Summary of the invention

[0007] The object of the present invention is to provide a spherical negative electrode material processing device for lithium battery production to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a spherical negative electrode material processing device for lithium battery production, comprising a positioning mechanism, a cutting mechanism and a control system, wherein the cutting mechanism comprises a moving component and a platform component, and the positioning mechanism comprises a pressing component and a suction cup component;

[0009] The pressing assembly includes a second bracket and a top plate fixed on the second bracket, a rack and a slide rail are respectively fixed to the bottom of the left and right sides of the top plate, the bottom of the rack and the slide rail are connected to a bearing plate through a slider, the bottom of the bearing plate is respectively fixed to a second motor and a third cylinder, the output end of the second motor is fixed to a gear, and the gear and the rack are meshed with each other;

[0010] A plurality of cameras are fixed around the inner wall of the top plate;

[0011] A connecting plate is fixed to the output end of the third cylinder, a third motor is fixed to one side of the connecting plate, a pressure plate is connected to a bearing on one side of the connecting plate, and the pressure plate is fixedly connected to the output end of the third motor;

[0012] The suction cup assembly includes two groups of fixed plates fixed on both sides above the top plate, a threaded rod is connected to a bearing between each group of the fixed plates, a fourth motor is fixed to one side of one group of the fixed plates, the output end of the fourth motor is fixedly connected to the threaded rod, sliding frames are threadedly connected to the two groups of threaded rods, two groups of electric telescopic rods are fixed to each group of the sliding frames, sliding rods are arranged on the left and right sides of each group of the electric telescopic rods, the sliding rods are slidably connected to the sliding frames, the sliding rods support the electric telescopic rods, a lifting plate is fixed to the end of the sliding rod, an electromagnetic suction cup is fixed to the bottom of the lifting plate, a connecting block is fixed to the top middle of the lifting plate, and the connecting block is fixedly connected to the output end of the electric telescopic rod.

[0013] According to the above technical solution, the trial cutting step is included:

[0014] The length of the spherical negative electrode plate cutting is set as a in the control system. The moving component controls the laser cutting head to move a+n for cutting. n is the reserved value of the cutting length set by the staff for trial cutting. The actual cutting length is ,pass The change of can be used to analyze whether there is an offset during cutting. Since the width of the spherical negative electrode plate is set to b in the control system, when cutting to When cutting, further determine whether there is an offset. At the time, , it means that no deviation occurred during the trial cutting and you can continue cutting.

[0015] According to the above technical solution, , it means that there is an offset during the trial cutting, but it is within the appropriate range. At this time, the laser cutting head is controlled to stop working, the pressure plate is controlled to lift, the suction cup assembly is started to descend, the electromagnetic suction cup is controlled to adsorb the spherical negative electrode plate, and the spherical negative electrode plate is controlled to lift. At this time, according to the actual offset of the spherical negative electrode plate, the signal is transmitted to the two groups of fourth motors, so that the fourth motors are started respectively, and the start of the fourth motors drives the two groups of sliding frames to move horizontally respectively, so that the two groups of sliding frames move forward and backward according to the offset of the spherical negative electrode plate, and the position of the spherical negative electrode plate is readjusted, and the spherical negative electrode plate is parallel to the laser cutting head. When the spherical negative electrode plate is adjusted, the pressure plate is controlled to press against the surface of the spherical negative electrode plate again, and the second cylinder is controlled to extend to lift the support platform. The spherical negative electrode plate is further clamped and fixed through the cooperation of the support platform and the pressure plate to ensure its stability. After readjustment and fixation, the laser cutting head is controlled to move by a greater than a and less than a through the moving assembly again. distance, and conduct a trial cut again to ensure the quality of the cutting.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention, by providing a positioning mechanism, when the trial cutting does not produce deviation and is within the deviation range, controls the moving assembly to control the laser cutting head to move to a distance for formal cutting, cuts the spherical negative electrode plate into a suitable size, ensures cutting accuracy, and improves cutting quality;

[0017] By providing an electromagnetic suction cup and a gravity sensor, the weight change of the spherical negative electrode plates when being stacked is detected by the gravity sensor to further judge the quality of the uniform distribution of spherical particles inside the spherical negative electrode plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0020] Figure 2 It is a side schematic diagram of the overall structure of the present invention;

[0021] Figure 3 It is a top schematic diagram of the overall structure of the present invention;

[0022] Figure 4 The present invention Figure 1 A local enlarged schematic diagram of area A;

[0023] Figure 5 The present invention Figure 2 A local enlarged schematic diagram of area B;

[0024] Figure 6 The present invention Figure 2 A local schematic diagram of the C region;

[0025] Figure 7 The present invention Figure 3 A local schematic diagram of the D region;

[0026] Figure 8 is a schematic diagram of a storage box of the present invention;

[0027] Fig. 9 It is a schematic diagram of the cutting state of the plate of the present invention;

[0028] In the figure: 1, bracket one; 2, bracket two; 3, fourth motor; 4, threaded rod; 5, sliding frame; 6, electric telescopic rod; 7, sliding rod; 8, camera; 9, top plate; 10, support frame two; 11, support frame one; 12, supporting teeth; 13, linear drive group one; 14, connecting block; 15, electromagnetic suction cup; 16, connecting rod one; 17, third cylinder; 18, bearing plate; 19, connecting plate; 20, third motor; 21, pressure plate; 22, second motor; 23, gear; 24, slide rail; 25, rack; 26, mounting frame; 27, second cylinder; 28, connecting rod two; 29, linear drive group two; 30, sliding plate; 31, first motor; 32, mounting plate; 33, moving block; 34, laser cutting head; 35, storage box; 36, gravity sensor; 37, lifting plate. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-9 The present invention provides a technical solution: a spherical negative electrode material processing device for lithium battery production, including a positioning mechanism and a cutting mechanism, the positioning mechanism is arranged above the cutting mechanism, the cutting mechanism includes a moving component and a platform component, the moving component is used to control the movement of the laser cutting head 34, and the platform component is used to place the spherical negative electrode plate.

[0031] The positioning mechanism includes a pressing component and a suction cup component. The pressing component is used to position the spherical negative electrode plate above the platform component, and the suction cup component is used to take away the cut plate.

[0032] The moving component includes a bracket 1, a support frame 11 and a support frame 2 10 arranged on the bracket 1, a linear drive group 13 is arranged between the support frame 11 and the support frame 2 10 and the bracket 1, and the linear drive group 13 drives the support frame 11 and the support frame 2 10 to move back and forth longitudinally on the bracket 1, and a linear drive group 2 29 is arranged on the support frame 2 10, a sliding plate 30 is fixed to one side of the linear drive group 29, and the sliding plate 30 and the support frame 2 10 are slidingly connected, and a mounting plate 32 is fixed to one side of the sliding plate 30, and a first motor 31 is fixed to the top of the mounting plate 32, and the output end of the first motor 31 is connected to a screw transmission part, and a moving block 33 is threadedly connected to one side of the screw transmission part, and a laser cutting head 34 is fixed to one side of the moving block 33, and the laser cutting head 34 is driven to move back and forth laterally on the bracket 1 by the linear drive group 29, and then the first motor 31 is started, and the laser cutting head 34 can be driven to move longitudinally through the screw transmission part.

[0033] The platform assembly includes a plurality of supporting teeth 12, a second cylinder 27, three groups of connecting rods 16 and multiple groups of connecting rods 28. The three groups of connecting rods 16 are arranged inside the bracket 1. The plurality of supporting teeth 12 form a supporting platform for placing the spherical negative electrode plate. The plurality of supporting teeth 12 are fixed to the connecting rod 16. The multiple groups of connecting rods 28 are fixed below the connecting rod 16. A plurality of mounting frames 26 are fixed below the bracket 1. A second cylinder 27 is fixed on each group of mounting frames 26. The output end of the second cylinder 27 is fixedly connected to the connecting rod 28. Starting the second cylinder 27 can drive the connecting rod 16 through the connecting rod 28 to drive the supporting platform to move upward, thereby driving the spherical negative electrode plate to move upward.

[0034] A storage box 35 is provided on one side of the supporting platform, and a gravity sensor 36 is provided at the bottom of the storage box 35 .

[0035] The pressing assembly includes a bracket 2 and a top plate 9 fixed on the bracket 2. A rack 25 and a slide rail 24 are fixed to the bottom of the left and right sides of the top plate 9 respectively. The bottom of the rack 25 and the slide rail 24 are connected to a bearing plate 18 through a slider. The bottom of the bearing plate 18 is fixed with a second motor 22 and a third cylinder 17 respectively. A gear 23 is fixed to the output end of the second motor 22. The gear 23 and the rack 25 are meshed with each other. The second motor 22 is started to drive the rotation, and the bearing plate 18 is controlled to move horizontally on the top plate 9, thereby driving the third cylinder 17 to move horizontally.

[0036] A number of cameras 8 are fixed around the inner wall of the top plate 9 for photographing the cutting quality of the spherical negative electrode plate.

[0037] It should be noted that the second motor 22, the gear 23, the rack 25, the rack 25 and the slide rail 24 form a linear drive group three, and the structure of the linear drive group one 13 and the linear drive group two 29 is consistent with the linear drive group three, so no further details will be given.

[0038] A connecting plate 19 is fixed to the output end of the third cylinder 17, a third motor 20 is fixed to one side of the connecting plate 19, a pressure plate 21 is connected to a bearing on one side of the connecting plate 19 close to the supporting tooth 12, and the pressure plate 21 is fixedly connected to the output end of the third motor 20. Starting the third motor 20 drives the pressure plate 21 to rotate in the connecting plate 19 to press the spherical negative electrode plate, thereby playing a fixing role during cutting.

[0039] The pressing plate 21 is set to a rotating state. When the pressing plate 21 needs to move, the pressing plate 21 is driven to a vertical state by the third motor 20, so that the pressing plate 21 does not interfere with the support frame 1 11 and the support frame 2 10 when moving horizontally.

[0040] The suction cup assembly includes two groups of fixed plates fixed on both sides above the top plate 9, and a threaded rod 4 is connected to the bearing between each group of fixed plates. A fourth motor 3 is fixed to one side of one group of fixed plates, and the output end of the fourth motor 3 is fixedly connected to the threaded rod 4. The two groups of threaded rods 4 are threadedly connected to sliding frames 5, and two groups of electric telescopic rods 6 are fixed to each sliding frame 5. Sliding rods 7 are arranged on the left and right sides of each group of electric telescopic rods 6. The sliding rods 7 are slidably connected to the sliding frames 5, and the sliding rods 7 support the electric telescopic rods 6. The end of the sliding rod 7 A lifting plate 37 is fixed, an electromagnetic suction cup 15 is fixed to the bottom of the lifting plate 37, a connecting block 14 is fixed to the middle of the top of the lifting plate 37, the connecting block 14 is fixedly connected to the output end of the electric telescopic rod 6, the fourth motor 3 is started to drive the threaded rod 4 to move, thereby driving the sliding frame 5 to move horizontally on the top plate 9, when it is necessary to adsorb the cut spherical negative electrode plate, the electric telescopic rod 6 is started to drive the connecting block 14 to extend, thereby driving the lifting plate 37 to move in the direction close to the supporting teeth 12, and the electromagnetic suction cup 15 is started to adsorb the cut spherical negative electrode plate.

[0041] A spherical negative electrode material processing device for lithium battery production also includes a control system, which is electrically connected to the camera 8 and the gravity sensor 36;

[0042] The working steps of the positioning mechanism and the cutting mechanism are all controlled by the control system, and no further elaboration will be given here.

[0043] Embodiment 1: In this embodiment, in order to avoid offset during cutting, thereby affecting the quality of the cut plate, a trial cut is required to determine whether an offset occurs during the trial cut. If an offset is found during the cutting, adjustments can be made in a timely manner.

[0044] Specifically, the spherical negative electrode plate is placed on the support platform formed by the support teeth 12, and the pressing assembly is started to control the pressing plate 21 to press on the spherical negative electrode plate to play a positioning role. Since the pressing plates 21 are symmetrically arranged in two groups, the two groups of pressing assemblies are controlled to move to a suitable distance (such as Figure 8 As shown), the laser cutting head 34 is then driven to move by the moving assembly, and the laser cutting head 34 is started to cut the spherical negative electrode plate.

[0045] In the control system, the length of the spherical negative electrode plate to be cut is set as a, and the moving component controls the laser cutting head 34 to move a+n distance (such as Figure 8 As shown in the figure, n is the reserved value of cutting length set by the staff for trial cutting, and the actual cutting length is ,pass The change of can be used to analyze whether there is an offset during cutting. Specifically, during the trial cutting process, the state of the spherical negative electrode plate during cutting is photographed by the camera 8, and the signal is transmitted to the control system. Since the width of the spherical negative electrode plate is set to b in the control system, when cutting to When cutting, further determine whether there is an offset. At the time, When it is on, it means that no deviation occurred during the trial cutting and the cutting can continue;

[0046] when , indicating that there is an offset during the trial cutting, but it is within the appropriate range. At this time, the laser cutting head 34 is controlled to stop working, the pressure plate 21 is controlled to lift, the suction cup assembly is started to descend, the electromagnetic suction cup 15 is controlled to adsorb the spherical negative electrode plate, and the spherical negative electrode plate is controlled to lift. At this time, according to the actual offset of the spherical negative electrode plate, the signal is transmitted to the two groups of fourth motors 3, so that the fourth motors 3 are started respectively, and the start of the fourth motors 3 drives the two groups of sliding frames 5 to move horizontally (the two groups of sliding frames 5 move asynchronously), so that the two groups of sliding frames 5 move forward and backward according to the offset of the spherical negative electrode plate, and the position of the spherical negative electrode plate is readjusted, and the spherical negative electrode plate is parallel to the laser cutting head 34. When the spherical negative electrode plate is adjusted, the pressure plate 21 is controlled to press against the surface of the spherical negative electrode plate again, and then the second cylinder 27 is controlled to extend, so that the support platform is lifted, and the spherical negative electrode plate is further clamped and fixed by the cooperation of the support platform and the pressure plate 21 to ensure its stability. After readjustment and fixation, the laser cutting head 34 is controlled to move by a greater than a less than a by the moving assembly again. The distance is set, and a trial cut is performed again to ensure the quality of the cutting. This step can be adjusted in real time during the trial cut to ensure the quality of subsequent cutting;

[0047] when When the cutting offset is serious and exceeds the reserved adjustment distance, it means that the equipment needs to readjust the laser parameters, and the control system will alarm.

[0048] Through the above steps, when the trial cutting does not produce offset and is within the offset range, the moving component is controlled to control the laser cutting head 34 to move to a distance for formal cutting, cutting the spherical negative electrode plate into a suitable size, ensuring cutting accuracy and improving cutting quality.

[0049] Embodiment 2: Based on embodiment 1, after formal cutting is completed, the distribution of spherical particles at the cutting edge is further determined.

[0050] Specifically, after the formal cutting is completed, the suction cup assembly is started to extend, and the electromagnetic suction cup 15 is turned on to absorb the cut spherical negative electrode plate (ensuring that the two groups of electromagnetic suction cups 15 are in a parallel state). After absorption, the electromagnetic suction cup 15 is controlled to lift so that the cut spherical negative electrode plate is separated from the supporting platform. At this time, the camera 8 continues to take pictures of the cutting edge and transmits them to the control system. The control system identifies whether the spherical particles at the edge are evenly distributed. If the spherical particles at the edge of the spherical negative electrode plate are evenly distributed, the fourth motor 3 is started again to drive the two groups of sliding frames 5 to move synchronously, and the cut spherical negative electrode plate is moved to the storage box 35 for storage. If the spherical particles at the edge of the spherical negative electrode plate are unevenly distributed, the sliding frame 5 is controlled to move the spherical negative electrode plate with uneven spherical particles to the outside for processing by the staff. The distribution of spherical particles at the cutting edge is judged through this step to judge the quality of the spherical negative electrode plate.

[0051] When the spherical negative electrode plates are moved to the storage box 35 for storage, the weight change of the spherical negative electrode plates when stacked is detected by the gravity sensor 36 to further determine the quality of the uniform distribution of the spherical particles inside the spherical negative electrode plates;

[0052] Specifically, the staff sets the weight of the single spherical negative electrode plate after being cut as f in the control system, where f is the weight of the spherical particles evenly distributed inside the spherical negative electrode plate. Since the spherical negative electrode plate with evenly distributed spherical particles at the edge is moved to the storage box 35 for stacking, when the number of stacked spherical negative electrode plates increases in direct proportion to the weight f of the spherical negative electrode plate, that is, G=Nf, it indicates that the spherical particles inside the spherical negative electrode plate are evenly distributed, indicating that the quality of the spherical negative electrode plate is high, wherein G is the sum of the weights of the stacked spherical negative electrode plates with evenly distributed internal particles, N is the number of stacked spherical negative electrode plates, and Nf is the sum of the weights f of the actual N spherical negative electrode plates;

[0053] When the number of stacked spherical negative electrode plates is not proportional to the weight f of the spherical negative electrode plates, that is, G>Nf, it means that the sum of the weights of the stacked spherical negative electrode plates with uniform internal particle distribution is greater than the sum of the weights f of the actual N spherical negative electrode plates, indicating that the spherical particles inside the spherical negative electrode plates are unevenly distributed, indicating that the quality of the spherical negative electrode plates is low.

[0054] Through the above steps, the uniformity of the distribution of the spherical particles inside the spherical negative electrode plate can be further judged according to the weight to judge the quality of the negative electrode plate, thereby improving the cutting quality.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spherical negative electrode material processing device for lithium battery production, comprising a positioning mechanism, a cutting mechanism and a control system, characterized in that: The cutting mechanism includes a moving component and a platform component, and the positioning mechanism includes a pressing component and a suction cup component; The pressing assembly comprises a second bracket (2), a top plate (9) fixed on the second bracket (2), a rack (25) and a slide rail (24) fixed to the bottom of the left and right sides of the top plate (9), the bottom of the rack (25) and the slide rail (24) are connected to a bearing plate (18) via a slider, the bottom of the bearing plate (18) is fixed to a second motor (22) and a third cylinder (17), the output end of the second motor (22) is fixed to a gear (23), and the gear (23) and the rack (25) are meshed with each other; A plurality of cameras (8) are fixed around the inner wall of the top plate (9); A connecting plate (19) is fixed to the output end of the third cylinder (17), a third motor (20) is fixed to one side of the connecting plate (19), a pressure plate (21) is connected to a bearing on one side of the connecting plate (19), and the pressure plate (21) is fixedly connected to the output end of the third motor (20); The suction cup assembly comprises two groups of fixed plates fixed on both sides above the top plate (9), a threaded rod (4) is connected to a bearing between each group of the fixed plates, a fourth motor (3) is fixed to one side of one group of the fixed plates, the output end of the fourth motor (3) is fixedly connected to the threaded rod (4), the two groups of threaded rods (4) are threadedly connected to a sliding frame (5), two groups of electric telescopic rods (6) are fixed to each group of the sliding frame (5), and sliding rods (7) are arranged on the left and right sides of each group of the electric telescopic rods (6), the sliding rods (7) are slidably connected to the sliding frame (5), and the sliding rods (7) play a supporting role for the electric telescopic rods (6), a lifting plate (37) is fixed to the end of the sliding rod (7), an electromagnetic suction cup (15) is fixed to the bottom of the lifting plate (37), and a connecting block (14) is fixed to the middle of the top of the lifting plate (37), and the connecting block (14) is fixedly connected to the output end of the electric telescopic rod (6); The moving assembly comprises a support frame 1 (1), a support frame 1 (11) and a support frame 2 (10) arranged on the support frame 1 (1), and a linear drive group 1 (13) is arranged between the support frame 1 (11) and the support frame 2 (10) and the support frame 1 (1); A linear drive group 2 (29) is provided on the support frame 2 (10); a sliding plate (30) is fixed on one side of the linear drive group 2 (29); the sliding plate (30) is slidably connected to the support frame 2 (10); a mounting plate (32) is fixed on one side of the sliding plate (30); a first motor (31) is fixed on the top of the mounting plate (32); an output end of the first motor (31) is connected to a screw transmission part; a moving block (33) is threadedly connected to one side of the screw transmission part; a laser cutting head (34) is fixed on one side of the moving block (33); The platform assembly comprises a plurality of supporting teeth (12), a second cylinder (27), three groups of connecting rods one (16) and a plurality of groups of connecting rods two (28); A storage box (35) is provided on one side of the support platform, and a gravity sensor (36) is provided at the bottom of the storage box (35); The control system is electrically connected to the camera (8) and the gravity sensor (36); A spherical negative electrode material processing device for lithium battery production includes the following cutting steps: The length dimension of the spherical negative electrode plate to be cut is set as a in the control system, and the moving component controls the laser cutting head (34) to move a+n distance for cutting, where n is a reserved value of the cutting length set by the staff for the convenience of trial cutting, and the actual cutting length is ,pass The change of is analyzed to see whether there is deviation during cutting. Since the width of the spherical negative electrode plate is set to b in the control system, when cutting to When cutting, further determine whether there is an offset. At the time, When the test cutting is on, it means that no deviation occurs during the test cutting and the cutting continues; when When the test cutting is performed, it indicates that there is an offset during the trial cutting, but it is within the appropriate range. At this time, the laser cutting head (34) is controlled to stop working, the pressure plate (21) is controlled to be lifted, the suction cup assembly is started to descend, the electromagnetic suction cup (15) is controlled to adsorb the spherical negative electrode plate, and the spherical negative electrode plate is controlled to be lifted. At this time, according to the actual offset of the spherical negative electrode plate, the signal is transmitted to the two groups of fourth motors (3), so that the fourth motors (3) are started respectively, and the start of the fourth motors (3) drives the two groups of sliding frames (5) to move horizontally respectively, so that the two groups of sliding frames (5) move horizontally according to the spherical negative electrode plate. The negative electrode plate is moved forward and backward according to the offset situation, and the position of the spherical negative electrode plate is readjusted to make the spherical negative electrode plate parallel to the laser cutting head (34). When the spherical negative electrode plate is adjusted, the pressing plate (21) is controlled to be pressed against the surface of the spherical negative electrode plate, and the second cylinder (27) is controlled to extend so that the support platform is lifted. The spherical negative electrode plate is further clamped and fixed by the cooperation of the support platform and the pressing plate (21) to ensure its stability. After the readjustment and fixation, the laser cutting head (34) is controlled again by the moving component to move a distance greater than a and less than distance, and conduct a trial cut again to ensure the quality of the cutting.

2. The spherical negative electrode material processing device for lithium battery production according to claim 1, characterized in that: Three groups of the connecting rod one (16) are arranged inside the bracket one (1), a plurality of the supporting teeth (12) form a supporting platform, a plurality of the supporting teeth (12) are fixed to the connecting rod one (16), a plurality of groups of the connecting rod two (28) are fixed below the connecting rod one (16), a plurality of mounting frames (26) are fixed below the bracket one (1), a second cylinder (27) is fixed on each group of the mounting frames (26), and an output end of the second cylinder (27) is fixedly connected to the connecting rod two (28).

3. The spherical negative electrode material processing device for lithium battery production according to claim 1, characterized in that: The pressing plate (21) is set in a rotating state. When the pressing plate (21) needs to move, the pressing plate (21) is driven to a vertical state by the third motor (20), so that the pressing plate (21) does not interfere with the movement of the support frame 1 (11) and the support frame 2 (10) when moving horizontally.

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