Automatic disassembling equipment and disassembling method for waste lithium iron phosphate battery

Abstract

The invention relates to the technical field of battery disassembly, in particular to automatic disassembly equipment and disassembly method for waste lithium iron phosphate batteries, the automatic disassembly equipment comprises a conveying table, a cutting mechanism and a shell-core separation mechanism are sequentially arranged at the tail of the conveying table, the cutting mechanism comprises a support assembly arranged on the conveying table, and the shell-core separation mechanism is arranged on the support assembly. The positioning and clamping assemblies are arranged on the two sides of the support assembly, the cutting tool assembly is arranged at the top end of the support assembly, a connecting support is arranged between the positioning and clamping assemblies and the cutting tool assembly, and when the positioning and clamping assemblies clamp batteries of different sizes, the positioning and clamping assemblies clamp the batteries of different sizes. The cutting position of the cutting tool assembly can be synchronously adjusted through the connecting support, and the shell-core separation mechanism comprises a supporting frame arranged on the conveying table. The problems that when waste lithium iron phosphate batteries with different sizes are disassembled at present, the two ends of the batteries are difficult to accurately cut at a time, and the cutting efficiency is high are solved; the disassembly efficiency is low; and the cost is high.

Description

Technical Field

[0001] The present invention relates to the technical field of battery disassembly, and more specifically, it relates to an automated disassembly device and a disassembly method for used lithium iron phosphate batteries. Background Art

[0002] With the booming development of the electric vehicle industry, the number of used lithium iron phosphate batteries has increased sharply. How to efficiently and safely process these used batteries has become an urgent problem to be solved. The traditional manual disassembly method is not only inefficient, consuming a large amount of manpower and time, but also due to the differences in the skill levels of operators, the disassembly quality is difficult to guarantee. At the same time, there are certain safety risks in manual disassembly, such as battery short circuit, explosion, etc.

[0003] In order to improve the disassembly efficiency, some automated disassembly devices have been introduced into the battery recycling field. However, the existing automated disassembly devices still face challenges when dealing with used lithium iron phosphate batteries of different sizes. Due to the diversity of battery sizes and shapes, it is often difficult for automated disassembly devices to accurately cut both ends of the battery at one time. Usually, it needs to be carried out step by step, that is, first cut one side and then the other side, which results in a long disassembly process and slow working efficiency. To solve the above problems, an automated disassembly device and a disassembly method for used lithium iron phosphate batteries are proposed. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the present invention provides an automated disassembly device and a disassembly method for used lithium iron phosphate batteries to solve the problem that it is difficult to accurately cut both ends of the battery at one time when disassembling and processing used lithium iron phosphate batteries of different sizes in the background art, resulting in low disassembly efficiency and high cost.

[0005] To achieve the above object, the present invention provides the following technical solution: An automated disassembly device for used lithium iron phosphate batteries, including a conveying table, and a cutting mechanism and a shell-core separation mechanism are sequentially arranged at the tail of the conveying table; The cutting mechanism includes a bracket assembly arranged on the conveying table, a positioning and clamping assembly arranged on both sides of the bracket assembly, and a cutting tool assembly arranged at the top of the bracket assembly; A connecting bracket is arranged between the positioning and clamping assembly and the cutting tool assembly, and when the positioning and clamping assembly clamps batteries of different sizes, the cutting position of the cutting tool assembly can be synchronously adjusted through the connecting bracket; The shell-core separation mechanism includes a support frame arranged on the conveying table, a first cylinder push rod arranged on one side of the support frame, and a hydraulic jack arranged at the top of the support frame.

[0006] The present invention is further configured such that the bracket assembly includes support side plates disposed on both sides of the conveying table, and the positioning and clamping assembly is fixedly installed at the lower end of the support side plates; The positioning and clamping assembly includes a second cylinder push rod disposed at the lower end of the support side plate, and a push plate member disposed at the end of the telescopic rod of the second cylinder push rod.

[0007] The present invention is further configured such that an activity cavity is formed at the telescopic end of the second cylinder push rod, and the push plate member is inserted into the activity cavity in a matching manner; The push plate member includes a return spring disposed in the activity cavity, a plug rod movably inserted into the activity cavity, and a push plate disposed at the other end of the plug rod.

[0008] The present invention is further configured such that the positioning and clamping assembly further includes an electric telescopic rod disposed on one side of the push plate, and a dislocation plate disposed at the telescopic end of the electric telescopic rod; When the electric telescopic rod is in a contracted state, the dislocation plate fits against one end of the push plate close to the core separating mechanism, and one side edge of the dislocation plate away from the support side plate protrudes from one side of the push plate away from the support side plate.

[0009] The present invention is further configured such that the bracket assembly further includes a limiting frame disposed between the two support side plates, and a first sliding groove and a second sliding groove are formed on the limiting frame; The cutting tool assembly includes a cross plate slidably installed in the first sliding groove, hydraulic cylinders fixedly installed at both ends of the cross plate, and a cutting knife fixedly installed at the telescopic end of the hydraulic cylinders.

[0010] The present invention is further configured such that one end of the connecting bracket is fixedly connected to the telescopic end of the second cylinder push rod, and a slider is disposed at the end of the connecting bracket away from the second cylinder push rod; A sliding groove is formed on one side of the cross plate, and the sliding groove and the slider are slidably matched.

[0011] The present invention is further configured such that a positioning tooth block is disposed at the top of the middle section of the cross plate, a positioning rack is disposed at the top end of the inner wall of the first sliding groove, and the positioning tooth block and the positioning rack are snap-fitted.

[0012] The present invention is further configured such that the height of the first sliding groove is greater than the thickness of the cross plate, and when the cross plate fits against the bottom end of the first sliding groove, the positioning tooth block and the positioning rack are in a separated state.

[0013] The present invention is further configured such that a rubber block is fixedly installed at the telescopic end of the first cylinder push rod, and a pressing block is disposed at the bottom end of the hydraulic jack.

[0014] The present invention also provides the following technical solution: An automated disassembly method for used lithium iron phosphate batteries, including the automated disassembly equipment for used lithium iron phosphate batteries, and, S1. Place the used lithium iron phosphate battery on the conveyor table. The conveyor table transports the battery to the lower part of the cutting mechanism and stops. The positioning and clamping assembly clamps and fixes the battery in the center. S2. The connecting bracket of the cutting mechanism drives the cutting tool assembly to synchronously adjust to above both ends of the battery. The hydraulic cylinder of the cutting tool assembly drives the cutting knife to press down, cut both ends of the battery shell, and open the battery shell. S3. After cutting is completed, the conveyor table continues to move, transports the cut battery to the lower part of the shell-core separation mechanism and stops, and prepares for the separation of the battery core and the shell. S4. The hydraulic jack of the shell-core separation mechanism presses down to press and position the battery. The first cylinder push rod pushes out the battery core in the battery shell through the rubber block to realize the separation of the battery core and the shell. S5. The battery core is discharged from one side of the conveyor table for collection, and the battery shell continues to be transported to the tail through the conveyor table and falls into the collection box to complete the entire disassembly process.

[0015] Compared with the prior art, the present invention provides an automated disassembly equipment and a disassembly method for used lithium iron phosphate batteries, having the following beneficial effects: 1. In the present invention, the positioning and clamping assembly and the cutting tool assembly are synchronously adjusted through the connecting bracket, so that when clamping batteries of different sizes, the cutting tool assembly can be automatically adjusted to a suitable position to realize accurate cutting of both ends of the battery at one time. This design avoids the problem of step-by-step cutting in traditional disassembly equipment, significantly shortens the disassembly time, and improves the overall disassembly efficiency.

[0016] 2. In the present invention, the positioning and clamping assembly adopts an elastic push plate design, provides buffering through the return spring, avoids direct extrusion of the battery core inside the battery during the cutting process, reduces the risk of combustion and explosion. At the same time, the design of the dislocation plate effectively separates both ends of the cut battery shell when the battery core is pushed out, preventing the mixing of the battery core and the shell fragments and facilitating subsequent sorting.

[0017] 3. In the present invention, the hydraulic cylinder is meshed and positioned with the positioning rack in the first sliding groove through the positioning tooth block on the cross plate, realizing high stability during the cutting process, effectively avoiding the offset of the cutting knife caused by the deformation of the connecting bracket, and further preventing the risk of combustion and explosion of the battery core caused by the cutting knife contacting the battery core. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the automated disassembly equipment for used lithium iron phosphate batteries.

[0019] Figure 2 It is a schematic structural diagram of a cutting mechanism.

[0020] Figure 3 It is a front view structural schematic diagram of the cutting mechanism in the feeding direction from the conveying table.

[0021] Figure 4 It is Figure 3 an enlarged schematic diagram of part A in

[0022] Figure 5 It is a schematic structural diagram of a bracket assembly.

[0023] Figure 6 It is a schematic structural diagram of a cutting tool assembly.

[0024] Figure 7 It is a front view structural schematic diagram of the cutting tool assembly sliding in the first sliding groove.

[0025] Figure 8 It is Figure 7 an enlarged structural schematic diagram of part B in

[0026] In the figure: 1, conveying table; 2, cutting mechanism; 3, shell core separation mechanism; 301, support frame; 302, first cylinder push rod; 303, hydraulic jack; 304, rubber block; 305, pressing block; 4, bracket assembly; 401, support side plate; 402, limit frame; 403, first sliding groove; 404, second sliding groove; 405, positioning rack; 5, positioning and clamping assembly; 501, second cylinder push rod; 502, movable cavity; 503, electric telescopic rod; 504, offset plate; 6, cutting tool assembly; 601, cross plate; 602, hydraulic cylinder; 603, cutting tool; 604, sliding groove; 605, positioning tooth block; 7, connecting bracket; 701, slider; 8, push plate member; 801, return spring; 802, insertion rod; 803, push plate. Specific embodiments

[0027] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0029] In the present invention, unless otherwise specified, the orientations such as "upper" and "lower" generally refer to the directions shown in the drawings, or to the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left" and "right" generally refer to the left and right shown in the drawings; "inner" and "outer" refer to the inner and outer of the contour of each component itself, but the above orientation terms are not used to limit the present invention.

[0030] For the embodiments, please refer to Figure 1 - Figure 8 , an automated disassembly device and disassembly method for waste lithium iron phosphate batteries, comprising a conveying table 1, and a cutting mechanism 2 and a shell-core separation mechanism 3 are sequentially arranged at the tail of the conveying table 1; The cutting mechanism 2 includes a bracket assembly 4 arranged on the conveying table 1, and further includes positioning and clamping assemblies 5 arranged on both sides of the bracket assembly 4, and a cutting tool assembly 6 arranged at the top of the bracket assembly 4; A connecting bracket 7 is arranged between the positioning and clamping assembly 5 and the cutting tool assembly 6, and when the positioning and clamping assembly 5 clamps batteries of different sizes, the cutting position of the cutting tool assembly 6 can be synchronously adjusted through the connecting bracket 7; The shell-core separation mechanism 3 includes a support frame 301 arranged on the conveying table 1, and further includes a first cylinder push rod 302 arranged on one side of the support frame 301, and a hydraulic jack 303 arranged at the top of the support frame 301.

[0031] The conveying table 1 is used for conveying waste lithium iron phosphate batteries. The cutting mechanism 2 is used for first clamping waste lithium iron phosphate batteries of different sizes in the center, and then cutting both ends of the battery through the cutting tool assembly 6 to open both ends of the battery shell. Then, the shell-core separation mechanism 3 pushes out the battery core in the lithium iron phosphate battery with both ends of the battery shell opened, so as to realize the automated disassembly of the battery core and the shell.

[0032] Among them, visual sensors are arranged on one side of both the cutting mechanism 2 and the shell-core separation mechanism 3. When the conveying table 1 conveys the waste lithium iron phosphate battery to the lower parts of the cutting mechanism 2 and the shell-core separation mechanism 3, the conveying table 1 will stop, so that the waste lithium iron phosphate battery can be disassembled.

[0033] Specifically, the cutting mechanism 2 first clamps both ends of waste lithium iron phosphate batteries of different sizes through the positioning and clamping assembly 5. When the positioning and clamping assembly 5 pushes the battery to be centered and clamped, it will drive the cutting tool assembly 6 to adjust its position through the connecting bracket 7, so that after the waste lithium iron phosphate battery is clamped, the cutting tool assembly 6 is synchronously adjusted above the two ends of the waste lithium iron phosphate battery to be cut. It should be noted that in the initial state, the longitudinal projection distance from the cutting tool assembly 6 to the end of the battery in contact with the positioning and clamping assembly 5 is small, but it can cut the end of the battery shell without cutting the battery core inside the battery. Then, the cutting tool assembly 6 with adjusted position is pressed down to cut both ends of the battery shell, thereby opening both ends of the battery shell.

[0034] Further, after both ends of the waste lithium iron phosphate battery shell are opened, the battery continues to move along with the conveying table 1. When it moves to the position of the shell-core separation mechanism 3, the hydraulic ejector rod 303 presses down to clamp and position the battery, and then the first cylinder push rod 302 pushes out the battery core inside the battery shell, so that the battery core is discharged from the side of the conveying table 1 away from the first cylinder push rod 302, while the battery shell will be conveyed to the tail by the conveying table 1 and fall into the collection box.

[0035] The bracket assembly 4 includes support side plates 401 arranged on both sides of the conveying table 1, and the positioning and clamping assembly 5 is fixedly installed at the lower end of the support side plates 401; The positioning and clamping assembly 5 includes a second cylinder push rod 501 arranged at the lower end of the support side plate 401, and a push plate member 8 arranged at the end of the telescopic rod of the second cylinder push rod 501.

[0036] Second cylinder push rods 501 are fixedly installed on both sides of the support side plates 401, and the telescopic rods of the second cylinder push rods 501 on the two groups of support side plates 401 penetrate through the support side plates 401 and extend above the conveying table 1. When the telescopic rods of the two groups of second cylinder push rods 501 extend, they drive the push plate member 8 to approach each other, thereby pushing and adjusting the waste lithium iron phosphate battery on the conveying table 1 and clamping and fixing the waste lithium iron phosphate battery in the center.

[0037] The telescopic end of the second cylinder push rod 501 is provided with a movable cavity 502, and the push plate member 8 is inserted into the movable cavity 502 in a matching manner; The push plate member 8 includes a return spring 801 arranged in the movable cavity 502, and also includes a plug rod 802 movably inserted into the movable cavity 502, and a push plate 803 arranged at the other end of the plug rod 802.

[0038] When the second cylinder push rod 501 drives the push plate member 8 to clamp the waste lithium iron phosphate battery, the push plate 803 first fits against the waste lithium iron phosphate battery. As the second cylinder push rod 501 continues to push, the push plate 803 is inserted into the movable cavity 502 through the insertion rod 802 to squeeze the return spring 801, so that the return spring 801 has a rebounding force. The clamping of the battery will be realized through the rebounding force of the return spring 801.

[0039] It should be noted that when the battery is clamped, in order to ensure a high clamping force, the push plate 803 should fit as closely as possible to the telescopic end of the second cylinder push rod 501. However, there needs to be a certain distance between the push plate 803 and the telescopic end of the second cylinder push rod 501. The purpose is that when the cutting tool assembly 6 cuts the two ends of the battery shell, the cut end of the shell can be pushed and offset to both sides to ensure that the cutting tool assembly 6 can cut vertically downward stably. If the push plate 803 bracket is welded to the telescopic end of the second cylinder push rod 501, then after the battery is clamped, there is no buffer offset distance. When the cutting tool assembly 6 presses down for cutting, as the cutting tool assembly 6 enters, it will squeeze the battery shell and the battery core, that is, there is a possibility of safe cutting and cutting into the battery core. Therefore, when the battery shell is cut, there is a possibility of the battery core catching fire and exploding. Through the setting of the return spring 801 and the push plate 803, the distance can provide a buffer for the cut end of the battery shell, avoiding the cutting tool assembly 6 from shifting towards the battery core and causing the battery core to catch fire and explode.

[0040] The positioning and clamping assembly 5 further includes an electric telescopic rod 503 disposed on one side of the push plate 803, and a dislocation plate 504 disposed on the telescopic end of the electric telescopic rod 503; When the electric telescopic rod 503 is in the contracted state, the dislocation plate 504 fits against one end of the push plate 803 close to the shell-core separation mechanism 3, and one side edge of the dislocation plate 504 away from the support side plate 401 protrudes from the side of the push plate 803 away from the support side plate 401.

[0041] After the battery shell is cut by the cutting tool assembly 6, with the conveyance of the conveyor table 1, the two ends of the cut battery shell fall to the sides of the battery. When it moves to the position of the shell-core separation mechanism 3 and the first cylinder push rod 302 pushes the battery core out of the shell, when the battery core is disassembled from the battery shell, it will contact the cut and fallen battery shell, so that the battery core and the battery shell are collected together, resulting in the need for subsequent manual sorting.

[0042] The electric telescopic rod 503 is fixedly installed on the side of the push plate 803 where the plug-in rod 802 is located. Through the setting of the dislocation plate 504, before the push plate 803 clamps the battery, the electric telescopic rod 503 is in an extended state. After the push plate 803 clamps the battery and completes the cutting, the electric telescopic rod 503 contracts, driving the dislocation plate 504 to fit one side of the battery. At this time, the conveying platform 1 is started to convey the battery and the cut two ends. The cut two ends of the battery shell are resisted by the dislocation plate 504 and will be intercepted, while the middle end of the shell loaded with the battery cell can be conveyed normally. The two ends of the intercepted battery shell and the middle end of the shell loaded with the battery cell are misaligned. The two ends of the dislocated battery shell are not limited by the middle end of the shell loaded with the battery cell, and will fall sideways and break away from the resistance of the dislocation plate 504, so that they can be conveyed along with the conveying platform 1, so that when the first cylinder push rod 302 pushes the battery cell out of the shell, it will not be collected together with the cut end of the battery shell.

[0043] It should be noted that when the conveyor table 1 drives the cut battery to move, the second cylinder push rod 501 will contract, thereby resetting the reset spring 801, and there is no reaction force to clamp the battery, and the push plate 803 and both ends of the battery are in a zero contact state for limiting.

[0044] The support assembly 4 further includes a limiting frame 402 disposed between the two sets of supporting side plates 401, and a first sliding groove 403 and a second sliding groove 404 formed on the limiting frame 402; The cutting tool assembly 6 includes a horizontal plate 601 slidably mounted in the first sliding groove 403 , a hydraulic cylinder 602 fixedly mounted at both ends of the horizontal plate 601 , and a cutting knife 603 fixedly mounted at the telescopic end of the hydraulic cylinder 602 .

[0045] The first sliding groove 403 is connected to the second sliding groove 404. The first sliding groove 403 is horizontally opened at the middle position of the limiting frame 402, and the second sliding groove 404 is longitudinally opened at both ends of the limiting frame 402 in the width direction. The width direction is the conveying direction of the conveying platform 1. Figure 1 and Figure 2 The hydraulic cylinder 602 is slidably installed in the second sliding groove 404 , and the hydraulic cylinder 602 is limited by the second sliding groove 404 . The hydraulic cylinder 602 is driven by the cross plate 601 to move horizontally in the width direction of the conveying platform 1 .

[0046] One end of the connecting bracket 7 is fixedly connected to the telescopic end of the second cylinder push rod 501, and a slider 701 is provided at one end of the connecting bracket 7 away from the second cylinder push rod 501; A sliding groove 604 is provided on one side of the transverse plate 601 , and the sliding groove 604 and the sliding block 701 are slidably matched.

[0047] A positioning tooth block 605 is disposed at the top of the middle section of the transverse plate 601 , and a positioning rack 405 is disposed at the top of the inner wall of the first sliding groove 403 , and the positioning tooth block 605 and the positioning rack 405 are engaged and matched.

[0048] The height of the first sliding groove 403 is greater than the thickness of the horizontal plate 601 , and when the horizontal plate 601 fits the bottom end of the first sliding groove 403 , the positioning tooth block 605 and the positioning rack 405 are in a separated state.

[0049] When cutting the two ends of the battery shell, if the connecting bracket 7 and the cross plate 601 are fixedly connected, when the cutting knife 603 cuts the battery shell, the reaction force acts on the hydraulic cylinder 602, because the hydraulic cylinder 602 is only supported and limited by the connecting bracket 7, and the connecting bracket 7 is connected to the second cylinder push rod 501 and its size is longer. Therefore, when cutting, the connecting bracket 7 is not stable enough to limit the position of the hydraulic cylinder 602. Once the connecting bracket 7 is deformed, the cutting knife 603 will be offset, which will easily cause the cutting knife to hit the battery cell, thereby causing the battery cell to explode.

[0050] The hydraulic cylinder 602 is positioned by meshing the positioning tooth block 605 on the transverse plate 601 with the positioning rack 405 in the first sliding groove 403, thereby achieving stability during cutting.

[0051] Specifically, under the action of gravity, the hydraulic cylinder 602 drives the cross plate 601 to fit the bottom end of the first sliding groove 403, so that the positioning tooth block 605 and the positioning rack 405 are in contact with the battery shell when cutting the two ends of the battery shell. Then, its reaction force pushes the hydraulic cylinder 602 to drive the cross plate 601 to move up along the slider 701, so that the positioning tooth block 605 and the positioning rack 405 are engaged and positioned. At this time, when cutting, the position of the hydraulic cylinder 602 will not shift, thereby ensuring safety and stability during cutting.

[0052] A rubber block 304 is fixedly mounted on the telescopic end of the first cylinder push rod 302 , and a pressure block 305 is provided at the bottom end of the hydraulic jack 303 .

[0053] The rubber block 304 is arranged to prevent the battery cell from being squeezed and damaged when the battery cell is pushed, thereby preventing the battery cell from exploding.

[0054] S1. Place the waste lithium iron phosphate battery on the conveyor 1. The conveyor 1 conveys the battery to the bottom of the cutting mechanism 2 and stops. The positioning clamping assembly 5 clamps and fixes the battery in the center. S2, the connecting bracket 7 of the cutting mechanism 2 drives the cutting tool assembly 6 to be synchronously adjusted to the top of the two ends of the battery, and the hydraulic cylinder 602 of the cutting tool assembly 6 drives the cutting knife 603 to press down to cut the two ends of the battery shell and open the battery shell; S3. After the cutting is completed, the conveying table 1 continues to move, conveys the cut battery under the cell-core separation mechanism 3 and stops, preparing for the separation of the cell from the outer shell; S4. The hydraulic ejector rod 303 of the cell-core separation mechanism 3 presses down to tightly position the battery, and the first cylinder push rod 302 pushes out the cell inside the battery outer shell through the rubber block 304 to realize the separation of the cell from the outer shell; S5. The cell is discharged from one side of the conveying table 1 for collection, while the battery outer shell continues to be conveyed to the tail through the conveying table 1 and falls into the collection box, completing the entire disassembly process.

[0055] In all the solutions mentioned above, for the connection between two components, welding, connection with bolts and nuts, connection with bolts or screws, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and deformations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated disassembly device for waste lithium iron phosphate batteries, characterized in that: It includes a conveying table (1), and a cutting mechanism (2) and a shell-core separation mechanism (3) are sequentially arranged at the tail of the conveying table (1); The cutting mechanism (2) includes a bracket assembly (4) arranged on the conveying table (1), a positioning and clamping assembly (5) arranged on both sides of the bracket assembly (4), and a cutting tool assembly (6) arranged at the top of the bracket assembly (4); A connecting bracket (7) is arranged between the positioning and clamping assembly (5) and the cutting tool assembly (6), and when the positioning and clamping assembly (5) clamps batteries of different sizes, the cutting position of the cutting tool assembly (6) can be synchronously adjusted through the connecting bracket (7); The shell-core separation mechanism (3) includes a support frame (301) arranged on the conveying table (1), a first cylinder push rod (302) arranged on one side of the support frame (301), and a hydraulic jack (303) arranged at the top of the support frame (301).

2. The automated disassembly device for used lithium iron phosphate batteries according to claim 1, wherein: The bracket assembly (4) includes support side plates (401) arranged on both sides of the conveying table (1), and the positioning and clamping assembly (5) is fixedly installed at the lower end of the support side plates (401); The positioning and clamping assembly (5) includes a second cylinder push rod (501) arranged at the lower end of the support side plate (401), and a push plate member (8) arranged at the end of the telescopic rod of the second cylinder push rod (501).

3. An automated disassembly device for waste lithium iron phosphate batteries according to claim 2, characterized in that: An activity cavity (502) is opened at the telescopic end of the second cylinder push rod (501), and the push plate member (8) is inserted into the activity cavity (502) in a matching manner; The push plate member (8) includes a return spring (801) arranged in the activity cavity (502), a plugging rod (802) movably inserted into the activity cavity (502), and a push plate (803) arranged at the other end of the plugging rod (802).

4. An automated disassembly device for waste lithium iron phosphate batteries according to claim 3, characterized in that: The positioning and clamping assembly (5) further includes an electric telescopic rod (503) arranged on one side of the push plate (803), and a misalignment plate (504) arranged at the telescopic end of the electric telescopic rod (503); When the electric telescopic rod (503) is in a contracted state, the misalignment plate (504) fits against one end of the push plate (803) close to the shell-core separation mechanism (3), and one side edge of the misalignment plate (504) away from the support side plate (401) protrudes from one side of the push plate (803) away from the support side plate (401).

5. An automated disassembly device for waste lithium iron phosphate batteries according to claim 4, characterized in that: The bracket assembly (4) further includes a limiting frame (402) arranged between the two support side plates (401), and a first sliding groove (403) and a second sliding groove (404) opened on the limiting frame (402); The cutting tool assembly (6) includes a cross plate (601) slidably installed in the first sliding groove (403), hydraulic cylinders (602) fixedly installed at both ends of the cross plate (601), and a cutting knife (603) fixedly installed at the telescopic end of the hydraulic cylinders (602).

6. The automated disassembly equipment for used lithium iron phosphate batteries according to claim 5, characterized in that: One end of the connecting bracket (7) is fixedly connected to the telescopic end of the second cylinder push rod (501), and a slider (701) is provided at the end of the connecting bracket (7) away from the second cylinder push rod (501). A sliding groove (604) is formed on one side of the cross plate (601), and the sliding groove (604) and the slider (701) are slidably matched.

7. An automated disassembly device for used lithium iron phosphate batteries according to claim 6, characterized in that: A positioning tooth block (605) is provided at the top of the middle section of the cross plate (601), a positioning rack (405) is provided at the top of the inner wall of the first sliding groove (403), and the positioning tooth block (605) and the positioning rack (405) are snap-fitted.

8. An automated disassembly device for used lithium iron phosphate batteries according to claim 7, characterized in that: The height of the first sliding groove (403) is greater than the thickness of the cross plate (601), and when the cross plate (601) fits against the bottom end of the first sliding groove (403), the positioning tooth block (605) and the positioning rack (405) are in a separated state.

9. An automated disassembly device for used lithium iron phosphate batteries according to claim 8, characterized in that: A rubber block (304) is fixedly installed at the telescopic end of the first cylinder push rod (302), and a pressing block (305) is provided at the bottom end of the hydraulic jack (303).

10. An automated disassembly method for waste lithium iron phosphate batteries, characterized in that: Including the automated disassembly equipment for used lithium iron phosphate batteries according to any one of claims 1-9, and S1. Place the used lithium iron phosphate battery on the conveyor table (1), the conveyor table (1) conveys the battery to the lower part of the cutting mechanism (2) and stops, and the positioning and clamping assembly (5) clamps and fixes the battery in the center; S2. The connecting bracket (7) of the cutting mechanism (2) drives the cutting tool assembly (6) to be synchronously adjusted above both ends of the battery, and the hydraulic cylinder (602) of the cutting tool assembly (6) drives the cutting tool (603) to press down to cut both ends of the battery shell and open the battery shell; S3. After cutting is completed, the conveyor table (1) continues to move, conveys the cut battery to the lower part of the shell-core separation mechanism (3) and stops, and prepares for the separation of the battery core and the shell; S4. The hydraulic jack (303) of the shell-core separation mechanism (3) presses down to press and position the battery, and the first cylinder push rod (302) pushes out the battery core in the battery shell through the rubber block (304) to realize the separation of the battery core and the shell; S5. The battery core is discharged from one side of the conveyor table (1) for collection, and the battery shell continues to be conveyed to the tail by the conveyor table (1) and falls into the collection box to complete the entire disassembly process.

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