A device for disassembling a battery for cascade utilization

Abstract

The application provides a disassembling device for cascade utilization battery, and relates to the field of battery cascade utilization.The device comprises a base, a workbench fixed on the top of the base, a cutting mechanism and a folding mechanism.The cutting mechanism is arranged above the workbench and is configured to cut the battery cover plate placed on the workbench to keep one side connected.The folding mechanism is arranged on the workbench and is configured to act on the partially cut battery cover plate to make it fold along the uncut side.The disassembling device for cascade utilization battery not only requires less cutting distance and shorter cutting time compared with cutting all four sides, but also completely eliminates the redundant process of grabbing and removing the cover plate after completely separating the cover plate, simplifies the two steps of opening the cover and grabbing the cover plate into a one-time cover folding action, greatly simplifies the process, and connects the cut cover plate to the battery, so that the cover plate will not fall off, and the use effect is good.

Description

Technical Field

[0001] This invention relates to the field of battery reuse technology, specifically to a dismantling device for reused batteries. Background Technology

[0002] With the rapid development of the new energy vehicle industry, a large number of power batteries are facing retirement. Disassembling them before their reuse is a key step in recycling the battery cells.

[0003] According to Chinese Patent No. CN115990606B, a dismantling device for a cascaded power battery includes a fixed base and at least one splitting component. The fixed base has a snap-fit ​​station for engaging with the bottom of the housing. Each of the at least one splitting component includes a bracket, an abrasive mill, and a prying member. The abrasive mill is mounted on one side of the bracket, and the prying member is rotatably connected to the other side of the bracket. The bracket is rotatably connected to the fixed base and can rotate to a first position and a second position. When the bracket rotates to the first position, the abrasive end of the abrasive mill overlaps with the gap between the housing and the housing cover to form an opening in the gap. When the bracket rotates to the second position, the prying end of the prying member is located in the opening, and the housing and the housing cover are separated by the rotation of the prying member.

[0004] The document proposes a dismantling device for secondary power batteries, which requires completely cutting off all four sides of the cover plate to separate it from the casing during dismantling. While this method can open the casing, the completely free cover plate after being cut off requires additional clamps for gripping and transferring, increasing the complexity of the process and equipment. Moreover, if the separated cover plate is not handled properly, it may fall or interfere with subsequent operations. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a dismantling device for reusable batteries, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a disassembly device for a cascaded battery, comprising a base and a worktable fixed to the top of the base, and further comprising a cutting mechanism and a folding mechanism; the cutting mechanism is disposed above the worktable and configured to cut a battery cover plate placed on the worktable so that one side remains connected; the folding mechanism is disposed on the worktable and configured to act on the partially cut battery cover plate, causing it to fold along the uncut side.

[0007] Furthermore, it also includes a fixing mechanism for fixing the battery to the worktable; the fixing mechanism includes a first fixing seat and a second fixing seat arranged opposite to each other, and a driving component; the first fixing seat is fixedly connected to the worktable; the driving component is disposed on the second fixing seat, and its output end is connected to a clamping plate, the clamping plate being opposite to the first fixing seat to jointly form a clamping space.

[0008] Furthermore, the cutting mechanism includes a three-dimensional motion module and a laser cutting head; the three-dimensional motion module is fixed above the worktable; and the laser cutting head is installed at the output end of the three-dimensional motion module.

[0009] Furthermore, the three-dimensional motion module includes a first linear module extending along the Y-axis, a lifting module mounted on the slider of the first linear module, a second linear module extending along the X-axis mounted on the output end of the lifting module, and a robotic arm mounted on the slider of the second linear module; the laser cutting head is mounted on the output end of the robotic arm.

[0010] Furthermore, the folding mechanism includes a flipping drive assembly and a hooking assembly; the flipping drive assembly is hinged to the worktable or base; the hooking assembly is mounted on the output end of the flipping drive assembly and includes an elongated pulling member; the hooking assembly is configured to drive the elongated pulling member to move so that it can pass through the cut slits on the battery cover and hook onto the cover.

[0011] Furthermore, the flipping drive assembly includes two rotating arms, a connecting shaft, and a linear actuator; the two rotating arms are synchronously connected via the connecting shaft, which is hinged to the worktable or base; the cylinder of the linear actuator is hinged to the base, and its piston rod is hinged to the rotating arms; the hooking assembly also includes two symmetrically arranged take-up and release units, with both ends of the slender pulling member connected to the two take-up and release units respectively.

[0012] Preferably, the linear actuator is a hydraulic cylinder or an electric push rod.

[0013] Preferably, each of the take-up and release units includes a drive motor, a lead screw driven by the drive motor, and a sliding block threaded onto the lead screw; the end of the elongated pulling member is connected to the sliding block.

[0014] Preferably, the slender tensioning member is a steel cable, and its diameter is smaller than the width of the cutting slit formed by the cutting mechanism on the battery cover.

[0015] Preferably, the folding mechanism is configured such that the folded battery cover forms an angle of 60 to 120 degrees with the horizontal plane.

[0016] This invention provides a dismantling device for reusable batteries. It has the following advantages: 1. This battery disassembly device utilizes precise laser cutting to intentionally leave one side of the battery cover uncut, allowing it to naturally become the inherent hinge for the folding action. This not only requires less cutting distance and time compared to completely cutting all four sides, but also completely eliminates the redundant steps of completely separating the cover and then gripping and removing it. The two steps of gripping and placing the cover are simplified into a single flipping action, greatly simplifying the process. Furthermore, the cut cover remains attached to the battery, preventing it from falling off, resulting in excellent performance.

[0017] 2. This tiered battery disassembly device, through a single-sided connection structure, allows the folding mechanism to use a thin steel cable to hook onto the inner edge of the cover plate via a cutting slit, and then the folding is completed by lifting the steel cable with a rotating arm. The entire mechanism does not require complex cover plate gripping fixtures, has a simple structure, reliable operation, and a low failure rate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a front view of the structure of the present invention; Figure 3 This is a schematic diagram of the folding mechanism of the present invention; Figure 4 This is a top view of the folding mechanism structure of the present invention; Figure 5 This is a cross-sectional view of the structure of the retractable component of the present invention.

[0019] In the diagram: 1. Base; 2. Workbench; 3. Second fixed seat; 4. First linear module; 5. Lifting module; 6. Second linear module; 7. Robotic arm; 8. Laser cutting head; 9. First fixed seat; 10. Clamping plate; 11. Drive component; 12. Connecting shaft; 13. Rotating arm; 14. Linear driver; 15. Slender pulling component; 16. Drive motor; 17. Lead screw; 18. Sliding block. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] This invention provides a dismantling device for reusable batteries, such as... Figures 1 to 5 As shown, it includes a base 1, a worktable 2, a fixing mechanism, a cutting mechanism, and a folding mechanism.

[0022] The base 1 serves as the supporting frame for the entire device. The workbench 2 is securely fixed to the top of the base 1.

[0023] The fixing mechanism is used to clamp the square battery body to be disassembled. It includes a first fixing seat 9 and a second fixing seat 3. A driving component 11 is mounted on the second fixing seat 3. In this embodiment, the driving component 11 is an electric push rod, and its output end is connected to a clamping plate 10. Through the action of the driving component 11, the clamping plate 10 cooperates with the first fixing seat 9 to firmly clamp the battery body.

[0024] The cutting mechanism is responsible for performing the critical three-sided cutting process. It includes a three-dimensional motion module and a laser cutting head 8. The three-dimensional motion module is composed of a robotic arm 7, a first linear module 4 (Y-axis), a lifting module 5 (Z-axis), and a second linear module 6 (X-axis), driving the laser cutting head 8 to move precisely in space. The control system is pre-programmed to plan a T-shaped cutting path that avoids the long side of the cover plate.

[0025] The folding mechanism is responsible for performing the subsequent single-sided folding process. It includes a folding drive assembly and a hook-and-pull assembly. The folding drive assembly consists of two rotating arms 13 synchronized by a connecting shaft 12 and a linear actuator 14, which is a hydraulic cylinder in this embodiment. The connecting shaft 12 is hinged to the base 1. A connecting block is fixedly connected to the cylinder body of the hydraulic cylinder, and a hinge shaft is rotatably connected to the connecting block. The hinge shaft is fixedly connected to the base 1, and the piston rod is hinged to the rotating arm 13. The hook-and-pull assembly includes a retraction unit installed at the ends of the two rotating arms 13.

[0026] Each take-up and take-down unit specifically includes: a drive motor 16 fixed on the rotating arm 13, a lead screw 17 driven by the drive motor 16, and a sliding block 18 threaded onto the lead screw 17. The sliding block 18 is confined within a guide groove on the rotating arm 13, so that it can only slide along the length of the rotating arm 13 and cannot rotate. The slender pulling member 15 is a steel cable, hereinafter referred to as the steel cable, and its diameter is smaller than the width of the cutting slit formed by the laser cutting head 8. Each end of the steel cable is fixedly connected to the corresponding sliding block 18 through a connector, which in this embodiment is a crimp connector.

[0027] In this embodiment, the folding mechanism is configured such that the folded battery cover forms an angle of 60 to 120 degrees with the horizontal plane. Preferably, the folding angle is set to 90 degrees. This angle range is set based on the following considerations: the battery typically contains components such as cells and connecting pieces. When the folding angle is between 60 and 120 degrees, the cover can be fully opened, facilitating subsequent non-destructive extraction or testing of the cells; when the folding angle is around 90 degrees, the cover's center of gravity is relatively stable, making it less prone to accidental closing or shaking due to external forces or vibrations, which is beneficial for the continuous execution of subsequent processes.

[0028] Working principle: Fixing the battery: Place the battery between the clamping plate 10 and the first fixing seat 9, turn on the drive component 11, drive the clamping plate 10 to move towards the first fixing seat 9, and clamp and fix the battery.

[0029] Perform three-sided cutting: The laser cutting head 8 moves along the planned T-shaped path, and the high-energy laser beam precisely melts the connection between the cover plate and the shell, forming three cutting seams, while the fourth side facing the first fixed seat 9 is completely preserved as the hinge for subsequent folding.

[0030] Cable intervention: After the cutting is completed, the linear driver 14 extends until the two rotating arms 13 of the folding mechanism move to the working angle, so that the movement path of the cable corresponds to the cutting gap. Then the drive motor 16 of the take-up and release unit works, causing the sliding block 18 to move inward. Taking advantage of the extremely fine diameter of the cable, the cable is easily inserted into the cut gap on the cover plate and moved to the bottom of the cover plate.

[0031] Folding along the hinge: The linear actuator 14 continues to extend, pushing the rotating arm 13 to rotate upward about the hinge point of the connecting shaft 12. The rotating arm 13 applies an upward lifting force to the inner edge of the cover via a steel cable. Since one side of the cover is intact, this lifting force naturally translates into a torque that rotates the cover about its uncut connecting edge, thus smoothly and easily flipping the cover up to a predetermined angle, fully exposing the battery interior.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dismantling device for a cascaded battery, comprising a base (1) and a worktable (2) fixed to the top of the base (1), characterized in that: It also includes a cutting mechanism and a folding mechanism; the cutting mechanism is disposed above the worktable (2) and is configured to cut the battery cover plate placed on the worktable (2) so that one side of it remains connected; the folding mechanism is disposed on the worktable (2) and is configured to act on the partially cut battery cover plate so that it folds along the uncut side.

2. The dismantling device for secondary-use batteries according to claim 1, characterized in that: It also includes a fixing mechanism for fixing the battery to the workbench (2); the fixing mechanism includes a first fixing seat (9) and a second fixing seat (3) arranged opposite to each other, and a driving component (11); the first fixing seat (9) is fixedly connected to the workbench (2); the driving component (11) is disposed on the second fixing seat (3), and its output end is connected to a clamping plate (10), the clamping plate (10) is opposite to the first fixing seat (9) to form a clamping space together.

3. The dismantling device for secondary-use batteries according to claim 1, characterized in that: The cutting mechanism includes a three-dimensional motion module and a laser cutting head (8); the three-dimensional motion module is fixed above the worktable (2); the laser cutting head (8) is installed at the output end of the three-dimensional motion module.

4. The dismantling device for secondary-use batteries according to claim 3, characterized in that: The three-dimensional motion module includes a first linear module (4) extending along the Y-axis, a lifting module (5) mounted on the slider of the first linear module (4), a second linear module (6) extending along the X-axis mounted on the output end of the lifting module (5), and a robotic arm (7) mounted on the slider of the second linear module (6); the laser cutting head (8) is mounted on the output end of the robotic arm.

5. The dismantling device for secondary-use batteries according to claim 1, characterized in that: The folding mechanism includes a flipping drive assembly and a hook assembly; the flipping drive assembly is hinged to the worktable (2) or the base (1); the hook assembly is mounted on the output end of the flipping drive assembly and includes an elongated pull member (15); the hook assembly is configured to drive the elongated pull member (15) to move so that it can pass through the cut slits on the battery cover and hook onto the cover.

6. The dismantling device for secondary-use batteries according to claim 5, characterized in that: The flipping drive assembly includes two rotating arms (13), a connecting shaft (12), and a linear actuator (14); the two rotating arms (13) are synchronously connected through the connecting shaft (12), and the connecting shaft (12) is hinged to the worktable (2) or the base (1); the cylinder of the linear actuator (14) is hinged to the base (1), and its piston rod is hinged to the rotating arm (13); the hooking assembly also includes two symmetrically arranged take-up and release units, and the two ends of the slender pulling member (15) are respectively connected to the two take-up and release units.

7. The dismantling device for secondary-use batteries according to claim 6, characterized in that: The linear actuator (14) is a hydraulic cylinder or an electric push rod.

8. The dismantling device for secondary-use batteries according to claim 6, characterized in that: Each of the aforementioned take-up and take-down units includes a drive motor (16), a lead screw (17) driven by the drive motor (16), and a sliding block (18) threaded onto the lead screw (17); the end of the elongated pulling member (15) is connected to the sliding block (18).

9. The dismantling device for secondary-use batteries according to claim 5 or 6, characterized in that: The slender tension member (15) is a steel cable, and its diameter is smaller than the width of the cutting slit formed by the cutting mechanism on the battery cover.

10. The dismantling device for secondary-use batteries according to claim 6, characterized in that: The folding mechanism is configured such that the folded battery cover forms an angle of 60 to 120 degrees with the horizontal plane.

Images