A square case battery module disassembling workstation and a disassembling method thereof

Abstract

The application relates to a prismatic battery module disassembling workstation and a disassembling method thereof, which comprises a roller conveyor, a pulse laser, a galvanometer, a servo mechanism, a blowing system and a vision system. The pulse laser is installed on the ground on both sides of the roller conveyor, the servo mechanism is arranged above the head of the roller conveyor, the head of the roller conveyor is provided with a sliding table mechanism, the servo mechanism is provided with the galvanometer, the vision system and the blowing system, and the galvanometer is connected with the pulse laser. The tray is placed on the roller conveyor. The prismatic battery module bar piece is disassembled by laser cutting instead of manual disassembly, meanwhile, the temperature of the bar piece under the bar piece is ensured to be not higher than 100 DEG C during the cutting process, the surface damage trace of the bar piece is not higher than 0.2 mm, the module disassembling efficiency is increased by more than 20 times, the production efficiency is greatly improved, the processing cost is reduced, and the practicability is high.

Description

Technical Field

[0001] This invention relates to the field of waste battery processing technology, and in particular to a prismatic battery module dismantling workstation and its dismantling method. Background Technology

[0002] Currently, the new energy vehicle industry is developing rapidly, and the demand for battery modules is also increasing. It is expected that in the next 3 to 5 years, the batteries used in new energy vehicles will begin large-scale recycling, and various substandard products will exist in the manufactured battery modules, all requiring disassembly. This invention replaces the manual disassembly of the battery terminals in the prismatic battery module with automated laser cutting. The biggest problems with manual disassembly are low efficiency, high labor costs, and the risk of damaging the battery terminals due to forceful pulling. Furthermore, the high current and voltage of the module pose serious safety hazards. Summary of the Invention

[0003] To address the aforementioned problems, the purpose of this invention is to provide a workstation for disassembling prismatic battery modules, which automatically disassembles prismatic battery modules.

[0004] The following solution is adopted in this embodiment of the invention: a square battery module disassembly workstation is provided, including a roller conveyor belt, a pulsed laser, a galvanometer, a servo mechanism, an air blowing system, and a vision system. The pulsed laser is installed on the ground on both sides of the roller conveyor belt. The servo mechanism is mounted above the head of the roller conveyor belt. A sliding table mechanism is installed at the head of the roller conveyor belt. The galvanometer, vision system, and air blowing system are installed on the servo mechanism. The galvanometer is connected to the pulsed laser. A tray is placed on the roller conveyor belt.

[0005] In one embodiment of the present invention, mounting platforms are fixed on the ground on both sides of the head of the roller conveyor belt, and the sliding platform mechanism includes a mounting plate installed between the two mounting platforms. The mounting plate is located below the roller conveyor belt. Lifting cylinders are provided at the head and tail of the mounting plate. A blocking cylinder is installed at the tail end of the mounting plate.

[0006] In one embodiment of the present invention, a limiting plate is provided on the left side of the tray, and a clamping block is provided on the right side of the tray. The clamping block is connected to the tray through an elastic element.

[0007] In one embodiment of the present invention, a vertical second cylinder is also installed on the mounting plate; an explosion-proof cavity is provided in the mounting platform on the left; a first cylinder is provided on the side of the roller conveyor belt near the mounting platform without the explosion-proof cavity, and a hook is fixed to the push rod of the first cylinder; a third cylinder is installed on the side of the mounting platform without the explosion-proof cavity near the roller conveyor belt; a strip-shaped through groove is provided on the tray between the limiting plate and the clamping block, and the hook cooperates with the clamping block; the second cylinder is located below the through groove.

[0008] In one embodiment of the present invention, a second roller is installed at the top of the push rod of the second cylinder; a push plate is fixed to the push rod of the third cylinder; a plurality of first rollers are arrayed on the side of the roller conveyor belt near the mounting platform with the explosion-proof cavity; a guide plate is connected between the first rollers and the explosion-proof cavity; and a top plate is fixed to the push rod of the lifting cylinder.

[0009] In one embodiment of the present invention, a positioning plate perpendicular to the traveling direction of the roller conveyor belt is installed on the right side of the upper surface of the mounting plate. A movable fixing plate is provided on the positioning plate. The elastic element includes a connecting plate installed on the movable fixing plate. Fixing blocks are provided on the left and right sides of the upper surface of the connecting plate. A guide shaft is provided between the two fixing blocks. A slider passes through the guide shaft. A return spring is provided between the right end of the slider and the right-side fixing block. A clamping block with an L-shaped cross section is fixed on the movable block. A square battery module is fixed on the through groove between the clamping block and the limiting block.

[0010] In one embodiment of the present invention, a T-shaped slide rail is provided on the right side of the movable fixing plate, and a T-shaped groove that mates with the T-shaped slide rail is provided on the lower surface of the connecting plate. The connecting plate is locked onto the T-shaped slide rail by screws.

[0011] In one embodiment of the present invention, a plurality of first positioning screw holes are equally spaced on the positioning plate, and the movable fixing plate is connected to the positioning plate by bolts.

[0012] This invention also provides a disassembly method for a square battery module disassembly workstation, which standardizes the disassembly of square battery modules and is used according to the following steps:

[0013] Step S1: Adjust the clamping blocks on the tray to the size corresponding to the square battery module;

[0014] Step S2: Clamp the square battery module onto the tray and place the tray at the head of the roller conveyor belt.

[0015] Step S3: The pallet is transported by the roller conveyor belt into the servo mechanism. The blocking cylinder rises to stop the pallet from continuing to move forward, and the lifting cylinder lifts the pallet to separate it from the roller conveyor belt.

[0016] Step S4: The servo mechanism moves, and the vision system on it scans and measures the distance of the weld seam, feeding back the corresponding offset value to the galvanometer. The galvanometer compensates for the corresponding offset value, and the laser emits light to cut. At the same time, the air blowing system starts to work, blowing air on the cut weld seam to cool the temperature of the plate and blow away the generated slag.

[0017] Step S5: After disassembly is completed, the lifting cylinder retracts, the blocking cylinder retracts, and the pallet is transported away by the roller conveyor belt.

[0018] The beneficial effects of the present invention are as follows: The present invention provides a square battery module disassembly workstation, which improves the disassembly of square battery module terminals from the original manual disassembly to automatic laser cutting disassembly. At the same time, it ensures that the temperature of the terminal under the terminal does not exceed 100°C during the cutting process and the damage marks on the terminal surface do not exceed 0.2mm, thereby increasing the module disassembly efficiency by more than 20 times, greatly improving production efficiency, reducing processing costs, and making it highly practical. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a workstation for disassembling square battery modules.

[0020] Figure 2 This is a schematic diagram of a workstation for disassembling a square battery module from another perspective.

[0021] Figure 3 yes Figure 2 A magnified view of a portion of the image.

[0022] Figure 4 This is a schematic diagram of a square battery module disassembly workstation after the servo mechanism has been removed.

[0023] Figure 5 This is a schematic diagram of a square battery module disassembly workstation after removing the servo mechanism, pulse laser, dust removal system, and cooling system.

[0024] Figure 6 yes Figure 5 The main view after removing the servo mechanism.

[0025] Figure 7 yes Figure 5 Top view after removing the servo mechanism.

[0026] Figure 8 yes Figure 7 A schematic diagram of the AA-direction cross-section.

[0027] Figure 9yes Figure 8 A magnified view of a portion of the image.

[0028] Figure 10 This is a schematic diagram showing the relative positions of the slide mechanism, the tray, the first roller, and the guide plate.

[0029] Figure 11 A flowchart of a disassembly method for a square battery module disassembly workstation. Detailed Implementation

[0030] The invention will now be further described with reference to the accompanying drawings.

[0031] Please see Figures 1 to 10 This invention provides a disassembly workstation for a square-shell battery module, comprising a roller conveyor belt 11, a pulsed laser 3, a galvanometer 6, a servo mechanism 4, an air blowing system 8, and a vision system 7. The pulsed laser 3 is installed on the ground on both sides of the roller conveyor belt 11. The servo mechanism 4 is mounted above the head of the roller conveyor belt 11. A sliding table mechanism 5 is installed at the head of the roller conveyor belt 11. The galvanometer 6, vision system 7, and air blowing system 8 are mounted on the servo mechanism 4. The galvanometer 6 is connected to the pulsed laser 3, uses fiber optic laser transmission, and is used to connect the pulsed laser 3 and the galvanometer 6. A tray 12 is placed on the roller conveyor belt 11.

[0032] Please see Figures 1 to 8 In one embodiment of the present invention, mounting platforms 9 are fixed on the ground on both sides of the head of the roller conveyor belt 11. The sliding platform mechanism 5 includes a mounting plate 50 installed between the two mounting platforms 9. The mounting plate 50 is located below the roller conveyor belt 11. Lifting cylinders 51 are provided at the head and tail of the mounting plate 50. A blocking cylinder 52 is installed at the tail end of the mounting plate 50 to block the tray 12, so that the tray 12 holding the square battery module 18 no longer moves forward. Then the lifting cylinder 51 lifts the entire tray 12 to ensure that the tray 12 remains stationary in the designated position, thus ensuring the accurate disassembly of the square battery module 18.

[0033] Please see Figures 1 to 10 In one embodiment of the present invention, a limiting plate 123 is provided on the left side of the tray 12, and a clamping block 122 is provided on the right side of the tray 12. The clamping block 122 is connected to the tray 12 through an elastic member 19, which facilitates the clamping and loosening of the square battery module 18.

[0034] Please see Figures 1 to 10In one embodiment of the present invention, a vertical second cylinder 53 is also installed on the mounting plate 50; an explosion-proof cavity 10 is provided in the mounting platform 9 on the left; a first cylinder 14 is provided on the side of the roller conveyor belt 11 near the mounting platform 9 where the explosion-proof cavity 10 is not provided, and the push rod of the first cylinder 14 is fixed with a hook 141; a third cylinder 13 is installed on the side of the mounting platform 9 where the explosion-proof cavity 10 is not provided near the roller conveyor belt 11; the tray 12 is located between the limiting plate 123 and the clamping block 122. A strip-shaped through groove 121 is provided, and the hook 141 cooperates with the clamping block 122; the second cylinder 53 is located below the through groove 121. In the event of an accidental combustion or smoke emission from the square battery module 18, the first cylinder 14 retracts and pulls the clamping block 122 away from the square battery module 18, thereby releasing the square battery module 18. At the same time, the second cylinder 53 lifts the square battery module 18, and then the push rod of the third cylinder 13 pushes out to push the square battery module 18 to the left into the explosion-proof cavity 10.

[0035] Please see Figures 1 to 8 , Figure 10 In one embodiment of the present invention, a second roller 55 is installed at the top of the push rod of the second cylinder 53; a push plate 131 is fixed to the push rod of the third cylinder 13; a plurality of first rollers 15 are arrayed on the side of the roller conveyor belt 11 near the mounting platform 9 where the explosion-proof cavity 10 is located; a guide plate 16 is connected between the first rollers 15 and the explosion-proof cavity 10, so as to push the burning square battery module 18 into the explosion-proof cavity 10 more easily; a top plate 54 is fixed on the push rod of the lifting cylinder 51, so as to lift the tray 12 more stably.

[0036] Please see Figures 1 to 10 In one embodiment of the present invention, a positioning plate 124 perpendicular to the traveling direction of the roller conveyor belt 11 is installed on the right side of the upper surface of the mounting plate 50. A movable fixing plate 126 is provided on the positioning plate 124. The elastic element 19 includes a connecting plate 195 installed on the movable fixing plate 126. Fixing blocks 194 are provided on the left and right sides of the upper surface of the connecting plate 195. A guide shaft 193 is provided between the two fixing blocks 194. A slider 191 passes through the guide shaft 193. A return spring 192 is provided between the right end of the slider 191 and the right-side fixing block 194. A clamping block 122 with an L-shaped cross section is fixed on the movable block. A square battery module 18 is fixed on the through groove 121 between the clamping block 122 and the limiting block, which facilitates clamping and loosening of the square battery module 18.

[0037] Please see Figures 7 to 10In one embodiment of the present invention, a T-shaped slide rail 196 is provided on the right side of the movable fixing plate 126, and a T-shaped groove that mates with the T-shaped slide rail 196 is provided on the lower surface of the connecting plate 195. The connecting plate 195 is locked onto the T-shaped slide rail 196 by screws. The position of the connecting plate 195 on the T-shaped slide rail 196 is adjusted, that is, the front and rear position of the clamping block 122 is adjusted, to accommodate square battery modules 18 of different lengths.

[0038] Please see Figures 7 to 10 In one embodiment of the present invention, a plurality of first positioning screw holes are equally spaced on the positioning plate 124, and the movable fixing plate 126 is connected to the positioning plate 124 by bolts. A plurality of second positioning screw holes are equally spaced on the movable fixing plate 126. Adjusting the distance between the movable fixing plate 126 and the positioning plate 124, that is, adjusting the distance between the clamping block 122 and the limiting block, can achieve clamping of square battery modules 18 of different widths.

[0039] Please see Figures 1 to 5 In one embodiment of the present invention, the servo mechanism 4 is preferably a three-axis servo mechanism 4, and the galvanometer 6, vision system 7, and air blowing system are all mounted on the Z-axis movement module of the three-axis servo mechanism 4.

[0040] Please see Figures 1 to 5 In one embodiment of the present invention, the servo mechanism 4 is erected between the two mounting platforms 9, and the left and right sides of the servo mechanism 4 are connected to the upper surface of the corresponding mounting platform 9 through support legs.

[0041] Please see Figures 1 to 11 The present invention also provides a disassembly method for a disassembly workstation for a square battery module 18, which standardizes the disassembly of the square battery module 18 and is used according to the following steps:

[0042] Step S1: Adjust the clamping block 122 on the tray 12 to the size corresponding to the square battery module 18;

[0043] Step S2: Clamp the square battery module 18 onto the tray 12, and place the tray 12 at the head of the roller conveyor belt 11, as shown. Figure 1 The upper right corner is located on the roller conveyor belt, which is the material loading position;

[0044] Step S3: The pallet 12 is transported by the roller conveyor belt 11 into the servo mechanism 4. The blocking cylinder 52 raises the pallet 12 to continue moving forward, and the lifting cylinder 51 lifts the pallet 12 to separate it from the roller conveyor belt 11.

[0045] Step S4: The servo mechanism 4 moves, and the vision system 7 on it scans and measures the distance of the weld seam, feeding back the corresponding offset value to the galvanometer 6. The galvanometer 6 compensates for the corresponding offset value, and the laser emits light to cut. At the same time, the air blowing system 8 starts to work, blowing air on the cut weld seam to cool the temperature of the bar sheet and blow away the generated slag.

[0046] Step S5: After disassembly is completed, the lifting cylinder 51 retracts, the blocking cylinder 52 retracts, and the pallet 12 is transported away by the roller conveyor belt 11.

[0047] In one embodiment of the present invention, the installation height of the first roller 15 is higher than that of the limiting block.

[0048] In one embodiment of the present invention, the contact point between each cylinder and the material to be lifted is located between two adjacent rollers of the roller conveyor belt 11, which facilitates each cylinder to lift the corresponding component.

[0049] Please see Figure 1 In one embodiment of the present invention, a cooling system 1 and a dust removal system 2 are installed on the ground on both sides of the roller conveyor belt 11. Both are existing equipment used to absorb and filter the splashes and dust generated during cutting. The cooling system 1 is connected to the galvanometer mount of the galvanometer 6 through a water pipe.

[0050] The present invention has the following working principle:

[0051] Adjust the clamping block 122 on the tray 12 to the size corresponding to the square battery module 18 (by adjusting the left and right position of the moving fixing plate 126 on the positioning plate 124, and adjusting the front and rear mounting position of the connecting plate 195 on the moving fixing plate 126, to accommodate square battery modules 18 of different sizes).

[0052] The square battery module 18 is clamped onto the tray 12, and the tray 12 is placed at the head of the roller conveyor belt 11. The tray 12 is then transported by the roller conveyor belt 11 into the servo mechanism 4.

[0053] When the square battery module 18 is sensed to enter, the blocking cylinder 52 raises the blocking tray 12 to continue moving forward; the lifting cylinder 51 lifts the tray 12 to separate it from the roller conveyor belt 11.

[0054] The servo mechanism 4 moves, and the vision system 7 on it scans and measures the distance of the weld seam, feeding back the corresponding offset value to the galvanometer 6. The galvanometer 6 compensates for the corresponding offset value, and the laser emits light to cut. At the same time, the air blowing system 8 starts to work, blowing air on the cut weld seam to cool the temperature of the battery and blow away the generated slag. (If an accident occurs at this time, such as the battery catching fire and emitting smoke, the servo mechanism 4 drives the galvanometer 6, vision system 7, and air blowing system 8 to reset. The first cylinder 14 drives the hook 141 to pull the clamping block 122 to the left. The second cylinder 53 lifts the square battery module 18 so that the first roller 15 is flush with the second roller 55. The third cylinder 13 pushes out the push plate 131 to push the square battery module 18 to the left so that the square battery module falls into the explosion-proof cavity 10.) After the disassembly is completed, the lifting cylinder 51 retracts, the blocking cylinder 52 retracts, and the pallet 12 is transported away under the roller conveyor.

[0055] Vision system 7: Scans the weld seam and measures the distance of the module before cutting, and feeds back the measured offset to galvanometer 6;

[0056] Servo mechanism 4: used to drive the operation and positioning of galvanometer 6 and vision;

[0057] Slide mechanism 5: It feeds the clamped battery module from the loading position to the cutting position, fixes it at the cutting position to facilitate stable cutting, and then feeds the cut module to the unloading position;

[0058] Air blowing system 8: It is divided into an air knife for protecting the galvanometer 6 and a high-pressure air blowing device for blowing away the molten slag at the cutting position;

[0059] Cooling system: Used for cooling the laser and galvanometer 6.

[0060] Pulsed laser 3: A laser generator for the 1060-1100nm wavelength range, where aluminum has a high absorption rate.

[0061] The above description is only a preferred embodiment of the present invention and should not be construed as a limitation of this application. All equivalent changes and modifications made in accordance with the scope of the patent application of the present invention should be covered by the present invention.

Claims

1. A workstation for disassembling a square battery module, comprising a roller conveyor belt, a pulsed laser, a galvanometer, a servo mechanism, an air blowing system, and a vision system, characterized in that: The pulsed lasers are installed on the ground on both sides of the roller conveyor belt. The servo mechanism is mounted above the head of the roller conveyor belt. A slide mechanism is installed at the head of the roller conveyor belt. The servo mechanism is equipped with a galvanometer, a vision system, and an air blowing system. The galvanometer is connected to the pulsed laser. A tray is placed on the roller conveyor belt. Mounting platforms are fixed on the ground on both sides of the head of the roller conveyor belt. The sliding platform mechanism includes a mounting plate installed between the two mounting platforms. The mounting plate is located below the roller conveyor belt. Lifting cylinders are provided at the head and tail of the mounting plate. A blocking cylinder is installed at the tail end of the mounting plate. A limiting plate is provided on the left side of the tray, and a clamping block is provided on the right side of the tray. The clamping block is connected to the tray through an elastic element. A vertical second cylinder is also installed on the mounting plate; an explosion-proof cavity is provided in the mounting platform on the left; a first cylinder is provided on the side of the roller conveyor belt near the mounting platform without the explosion-proof cavity, and a hook is fixed to the push rod of the first cylinder; a third cylinder is installed on the side of the mounting platform without the explosion-proof cavity near the roller conveyor belt; a strip-shaped through groove is provided on the tray between the limiting plate and the clamping block, and the hook cooperates with the clamping block; the second cylinder is located below the through groove; A positioning plate perpendicular to the traveling direction of the roller conveyor belt is installed on the right side of the upper surface of the mounting plate. A movable fixing plate is provided on the positioning plate. The elastic element includes a connecting plate installed on the movable fixing plate. Fixing blocks are provided on the left and right sides of the upper surface of the connecting plate. A guide shaft is provided between the two fixing blocks. A slider passes through the guide shaft. A return spring is provided between the right end of the slider and the right-side fixing block. A clamping block with an L-shaped cross section is fixed on the slider. A square battery module is fixed on the through groove between the clamping block and the limiting plate. A second roller is mounted on the top of the push rod of the second cylinder; a push plate is fixed to the push rod of the third cylinder; multiple first rollers are arrayed on the side of the roller conveyor belt near the mounting platform where the explosion-proof cavity is located; a guide plate is connected between the first rollers and the explosion-proof cavity; a top plate is fixed to the push rod of the lifting cylinder. A T-shaped slide rail is provided on the right side of the movable fixed plate, and a T-shaped groove that mates with the T-shaped slide rail is provided on the lower surface of the connecting plate. The connecting plate is locked onto the T-shaped slide rail by screws. The positioning plate has several first positioning screw holes equidistantly spaced, and the movable fixing plate is connected to the positioning plate by bolts.

2. A disassembly method for a prismatic battery module disassembly workstation as described in claim 1, characterized in that: Use according to the following steps: Step S1: Adjust the clamping blocks on the tray to the size corresponding to the square battery module; Step S2: Clamp the square battery module on the tray and place the tray at the head of the roller conveyor belt; Step S3: The tray is transported by the roller conveyor belt into the servo mechanism. The blocking cylinder rises to stop the tray from moving forward, and the lifting cylinder lifts the tray to detach it from the roller conveyor belt; Step S4: The servo mechanism moves, and its vision system scans and measures the weld seam, feeding back the corresponding offset value to the galvanometer. The galvanometer compensates for the corresponding offset value, and the laser emits light to cut. At the same time, the air blowing system starts working, blowing air onto the cut weld seam to cool the temperature of the battery and blow away the generated slag; Step S5: After disassembly is completed, the lifting cylinder retracts, the blocking cylinder retracts, and the tray is transported away by the roller conveyor belt.

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