A milling machine for separating battery modules

Abstract

This utility model discloses a milling machine for separating battery modules, including a milling machine body mounted on a worktable. The milling machine body includes a chuck, and the chuck's collet has a groove located on the clamping surface of the collet. A sealing ring surrounds the groove, and the groove is connected to a negative pressure device via a pipe. This utility model aims to provide a milling machine for separating battery modules that offers greater clamping stability with a smaller clamping force, minimizing battery module deformation, reducing damage to the battery during processing, and improving yield.

Description

Technical Field

[0001] This utility model relates to the field of milling machine technology for battery processing, and in particular to a milling machine for separating battery modules. Background Technology

[0002] A milling machine for separating battery modules is a specialized piece of equipment used to disassemble battery modules. It is primarily used to cut the aluminum alloy frame, aluminum alloy welds, intermediate plastic structure, and CCS busbars of the battery module, separating it into multiple parts for subsequent recycling or experimental research. During battery separation, a chuck on the milling machine is used to clamp and secure the battery. However, current milling machines rely solely on the clamping force of the chuck to hold the battery. To achieve a more stable clamping effect, greater positive pressure needs to be applied to the battery. This can cause deformation of the battery during clamping, reducing the yield rate of separated battery modules. This is especially true during the separation of used batteries for secondary use, where the batteries have already undergone long-term use and their structural stability has decreased; under high clamping forces, they are more prone to damage. Utility Model Content

[0003] In view of the above-mentioned prior art, the present invention provides a milling machine for separating battery modules, which can provide greater clamping stability with a smaller clamping force, minimize the deformation of the battery module, reduce damage to the battery during processing, and improve the yield.

[0004] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows: A milling machine for separating battery modules includes a milling machine body mounted on a worktable, the milling machine body including a chuck, the chuck having a groove in its collet, the groove being located on the clamping surface of the collet, a sealing ring around the groove, and the groove being connected to a negative pressure device via a pipe.

[0005] Furthermore, the negative pressure device includes an air pump, a pedal, and a limiter. One end of the pedal is hinged to the workbench, and the other end is hinged to the air pump via a connecting rod. The pedal is used to drive the air pump to pump air, and the limiter is used to restrict the air pump from resetting.

[0006] Furthermore, the vacuum pump includes an air cylinder, a piston, a spring, and a piston rod. The piston is disposed inside the air cylinder, and the spring is used to push the piston upward. The air cylinder is connected to the pipe, and the piston is connected to the piston rod.

[0007] Furthermore, the lower end of the piston rod is hinged to the connecting rod, and the other end of the connecting rod is hinged to the middle of the pedal.

[0008] Furthermore, the air cylinder is fixedly connected to the guide cylinder, and the piston rod passes through the guide cylinder.

[0009] Furthermore, the limiter includes an upper hemisphere, a lower hemisphere, a vertical rod, a claw, and an elastic element. The claw is connected to the elastic element. The vertical rod is fixed to the worktable. The upper hemisphere is fixed to the top of the vertical rod. The lower hemisphere is directly below the upper hemisphere and has a through hole passing through the vertical rod. The claw is hinged to the piston rod. The elastic element is used to drive the claw to rotate inward. The bottom of the claw is bent inward to form a V-shaped hook for hooking the upper hemisphere.

[0010] Furthermore, the guide cylinder is connected to the worktable via a fixing frame.

[0011] Furthermore, the piston rod is provided with a hinge seat on its side, and the pawl is rotatably connected to the hinge seat.

[0012] Furthermore, the piston rod is provided with symmetrical claws on both sides, and the two opposing claws are connected by the elastic element.

[0013] The beneficial effects of this utility model are as follows: The milling machine body includes a chuck for holding the battery module, and the chuck's collets are used to clamp and fix the battery module. This utility model processes a groove into the original collet and embeds a sealing ring around the inner side of the groove. The groove is connected to a negative pressure device through a pipe. When the negative pressure device is working, it creates a negative pressure inside the groove, thereby adsorbing the battery module onto the collet, improving the stability of the battery module. It provides greater clamping stability with a smaller clamping force, minimizing battery module deformation, reducing damage to the battery during processing, and improving yield. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a milling machine for separating battery modules in an embodiment of this application; Figure 2 For this application Figure 1 Enlarged structural diagram of region A in the middle; Figure 3 This is a schematic diagram of the structure of the air extraction cylinder in the embodiments of this application; Figure 4 This is a schematic diagram illustrating the movement changes of the limiter during the locking and unlocking process in an embodiment of this application; Explanation of icon numbers: 1. Milling machine body; 2. Chuck; 3. Collet; 4. Sealing ring; 5. Pipe; 6. Negative pressure device; 7. Air pump; 8. Pedal; 9. Limiter; 10. Connecting rod; 11. Air pump; 12. Piston; 13. Spring; 14. Piston rod; 15. Guide cylinder; 16. Upper hemisphere; 17. Lower hemisphere; 18. Vertical rod; 19. Claw; 20. Elastic element; 21. V-shaped hook; 22. Fixing frame; 23. Hinge seat; 24. Limiting ring; 25. Worktable; 26. Groove. Detailed Implementation

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0016] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0017] Example 1 Please refer to the attached document. Figures 1-3This application provides a milling machine for separating battery modules, including a milling machine body 1 mounted on a worktable 25. The milling machine body 1 includes a chuck 2, and the collet 3 of the chuck 2 has a groove 26 located on the clamping surface of the collet 3. A sealing ring 4 surrounds the groove 26, and the groove 26 is connected to a negative pressure device 6 via a pipe 5. Optionally, the milling machine body 1 is a commercially available ordinary milling machine, such as the KDL-9512 milling machine from Kadelong. The milling machine body 1 includes a chuck 2 for clamping the battery module, and the collet 3 on the chuck 2 is used to clamp and fix the battery module. This utility model processes the groove 26 on the original collet 3. Preferably, the groove 26 has a depth of 2~5mm, and a sealing ring 4 is embedded around the inner side of the groove 26. Preferably, the sealing ring 4 protrudes 1~3mm from the clamping surface of the collet 3. The groove 26 is connected to the negative pressure device 6 through the pipe 5. When the negative pressure device is working, it creates a negative pressure in the groove 26, thereby adsorbing the battery module onto the clamp 3, which improves the stability of the battery module. It can provide greater clamping stability with a smaller clamping force, minimize the deformation of the battery module, reduce damage to the battery during processing, and improve the yield.

[0018] Specifically, the negative pressure device 6 includes an air extraction cylinder 7, a pedal 8, and a limiter 9. One end of the pedal 8 is hinged to the worktable 25, and the other end is hinged to the air extraction cylinder 7 via a connecting rod 10. The pedal 8 is used to drive the air extraction cylinder 7 to extract air, and the limiter 9 is used to prevent the air extraction cylinder 7 from resetting. When the operator presses down the pedal 8, the pedal 8 drives the air extraction cylinder 7 to work, thereby drawing air out of the groove 26 through the air pipe, creating a negative pressure in the groove 26, which adsorbs and fixes the battery pack, making the operation convenient. When the air extraction cylinder 7 is fixed by the limiter 9, it prevents the air extraction cylinder 7 from resetting, thereby maintaining the negative pressure state in the groove 26 and improving the stability of the battery module fixation.

[0019] Specifically, the suction cylinder 7 includes a cylinder 11, a piston 12, a spring 13, and a piston rod 14. The piston 12 is disposed inside the cylinder 11, and the spring 13 is used to push the piston 12 upward. The cylinder 11 is connected to the pipe 5, and the piston 12 is connected to the piston rod 14. The piston 12 slides up and down inside the cylinder 11. Before adsorption, the piston 12 is pushed upward by the spring 13. After clamping the battery module between the clips, the piston rod 14 and the piston 12 are pushed downward by the pedal 8, thereby creating a negative pressure in the groove 26 and fixing the battery module firmly.

[0020] Specifically, the lower end of the piston rod 14 is hinged to the connecting rod 10, and the other end of the connecting rod 10 is hinged to the middle of the pedal 8. The piston rod 14 is connected by a hinged rod, and when the pedal 8 moves downward, the connecting rod 10 drives the piston rod 14 to move downward.

[0021] Furthermore, the air cylinder 11 is fixedly connected to the guide cylinder 15, and the piston rod 14 passes through the guide cylinder 15. The guide cylinder 15 improves the stability of the piston rod 14's up-and-down movement, keeping the piston rod 14 in a vertical state during its up-and-down movement.

[0022] Example 2 Please refer to the attached document. Figure 1 , 4 The difference between this embodiment and Embodiment 1 is that the limiter 9 includes an upper hemisphere 16, a lower hemisphere 17, a vertical rod 18, a hook 19, and an elastic element 20. The hook 19 is connected to the elastic element 20. The vertical rod 18 is fixed to the worktable 25. The upper hemisphere 16 is fixed to the top of the vertical rod 18. The lower hemisphere 17 is directly below the upper hemisphere 16 and has a through hole passing through the vertical rod 18. The hook 19 is hinged to the piston rod 14. The elastic element 20 is used to drive the hook 19 to rotate inward. The bottom of the hook 19 is bent inward to form a V-shaped hook head 21 for hooking the upper hemisphere. Under the action of the elastic element 20, the hook 19 has a tendency to rotate inward, that is, the hook 19 is oriented towards the axis of the piston rod 14. When the pedal 8 moves downward, the pedal 8 drives the piston rod 14 to move downward through the connecting rod 10. The hook 19 on the piston rod 14 is pushed open to both sides by the upper hemisphere 16. After the hook 19 moves downward past the upper hemisphere 16, the pedal 8 is released. When the piston rod 14 moves upward, the V-shaped hook head 21 of the hook 19 is locked by the upper hemisphere 16, thereby limiting the position of the vacuum pump 7. When it is necessary to release, the pedal 8 needs to be pressed down further down before releasing. During this process, pressing the pedal 8 further down causes the hook 19 to move downwards beyond the lower hemisphere 17. After exceeding the lower hemisphere 17, the hook 19 rotates inwards under the action of the elastic element 20. The V-shaped hook head 21 at the bottom of the hook 19 hooks the bottom of the lower hemisphere 17. After releasing the pedal 8, the hook 19 hooks the lower hemisphere 17 and moves downwards, allowing the lower hemisphere 17 to contact the upper hemisphere 16. The movement of the lower hemisphere 17 is restricted, but the lower end of the lower hemisphere 17 is arc-shaped, so it cannot completely lock the hook 19. This causes the hook 19 to be pushed outwards and disengage from the lower hemisphere 17 and the upper hemisphere 16, allowing the pedal 8 and the vacuum pump 7 to return to their original positions.

[0023] Specifically, the vertical rod 18 is provided with a limiting ring 24 below the lower hemisphere 17, which limits the falling stroke of the lower hemisphere 17 and makes it easier to hook the lower hemisphere 17.

[0024] Specifically, the guide cylinder 15 is connected to the worktable 25 via a fixing frame 22, thereby improving the stability of the guide cylinder 15.

[0025] Specifically, the piston rod 14 has a hinge seat 23 on its side, and the hook 19 is rotatably connected to the hinge seat 23. The upper end of the hook 19 is hinged to the hinge seat 23, which facilitates the installation of the hook 19.

[0026] Specifically, the piston rod 14 is symmetrically provided with hooks 19 on both sides, and the two opposite hooks 19 are connected by the elastic element 20. Under the action of the spring element 13, the hooks 19 have a tendency to rotate inward, making it easier to lock under the upper hemisphere 16.

[0027] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. A milling machine for separating battery modules, characterized by, The milling machine body (1) is mounted on a worktable (25). The milling machine body (1) includes a chuck (2). The chuck (2) has a groove (26) on its collet (3). The groove (26) is located on the clamping surface of the collet (3). The groove (26) is surrounded by a sealing ring (4). The groove (26) is connected to a negative pressure device (6) through a pipe (5).

2. The mill for separating battery modules according to claim 1, wherein, The negative pressure device (6) includes an air pump (7), a pedal (8) and a limiter (9). One end of the pedal (8) is hinged to the milling machine body (1), and the other end is hinged to the air pump (7) through a connecting rod (10). The pedal (8) is used to drive the air pump (7) to pump air, and the limiter (9) is used to limit the air pump (7) from resetting.

3. The mill for separating battery modules according to claim 2, wherein, The vacuum pump (7) includes a cylinder (11), a piston (12), a spring (13) and a piston rod (14). The piston (12) is located inside the cylinder (11). The spring (13) is used to push the piston (12) to move upward. The cylinder (11) is connected to the pipe (5). The piston (12) is connected to the piston rod (14).

4. The mill for separating battery modules according to claim 3, wherein, The lower end of the piston rod (14) is hinged to the connecting rod (10), and the other end of the connecting rod (10) is hinged to the middle of the pedal (8).

5. The mill for separating battery modules of claim 3, wherein, The air cylinder (11) is fixedly connected to the guide cylinder (15), and the piston rod (14) passes through the guide cylinder (15).

6. The mill for separating battery modules of claim 3, wherein, The limiter (9) includes an upper hemisphere (16), a lower hemisphere (17), a vertical rod (18), a claw (19), and an elastic element (20). The claw (19) is connected to the elastic element (20). The vertical rod (18) is fixed to the worktable (25). The upper hemisphere (16) is fixed to the top of the vertical rod (18). The lower hemisphere (17) is directly below the upper hemisphere (16) and has a through hole passing through the vertical rod (18). The claw (19) is hinged to the piston rod (14). The elastic element (20) is used to drive the claw (19) to rotate inward. The bottom of the claw (19) is bent inward to form a V-shaped hook head (21) for hooking the upper hemisphere.

7. The mill for separating battery modules of claim 5, wherein, The guide cylinder (15) is connected to the worktable (25) via a fixing frame (22).

8. The mill for separating battery modules of claim 6, wherein, The piston rod (14) is provided with a hinge seat (23) on its side, and the pawl (19) is rotatably connected to the hinge seat (23).

9. A milling machine for separating battery modules according to claim 6, characterized in that, The piston rod (14) is provided with symmetrical claws (19) on both sides, and the two opposite claws (19) are connected by the elastic element (20).

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