A portable de-constraint tool for restraining a tray

Abstract

The utility model provides a portable release restraint tool of restraint tray relates to the electric core equipment technical field, include: the substrate, a plurality of driving pieces are fixed in the substrate, and the front end of driving piece is equipped with the push rod, and the both sides of substrate are installed with the detachable embrace claw, through the embrace claw with restraint tray fixed substrate, subsequently through driving piece push rod, take out the spacing plug -in board in restraint tray and make restraint tray from restraint state change into release restraint state. Advantageous effect is that the tool can directly complete the release restraint operation at the current station of the electric core, and the whole tray of electric core does not need to be transferred to the special station, the logistics waiting time and the equipment scheduling link are saved, the efficiency of the electric core selection, the abnormal treatment or the full power disassembly is improved several times. Through the portable design, it does not need to rely on fixed release restraint equipment or additional station, reduces the production line hardware investment and space occupation, simplifies the operation process at the same time, reduces manual intervention and time cost.

Description

Technical Field

[0001] This utility model relates to the field of battery cell equipment technology, and in particular to a portable unbinding tool for a restraint tray. Background Technology

[0002] With the continuous development of new energy sources, the production process of lithium batteries is constantly being optimized. Lithium-ion batteries are mainly classified into pouch, prismatic, and cylindrical types. While pursuing high energy density, the market also emphasizes cell cycle performance and safety. Therefore, in the cell design and production stages, ensuring a good and unobstructed interface within the cell is a prerequisite for effectively improving energy density and cycle performance. The restraint tray is a key piece of equipment in lithium battery production, mainly used in cell formation and capacity testing. By continuously applying restraint force, it suppresses the thickening of the stacked core caused by electrode expansion during charging, thereby ensuring uniform stress release at the electrode interface and good lithium intercalation consistency. This provides a fundamental guarantee for improving cell energy density, cycle performance, and safety. Depending on the application scenario, it can be divided into prismatic / pouch types, insert / screw-type restraint structures, and cylinder / screw-type unrestraint methods.

[0003] While current mainstream trays can effectively prevent cell deformation, wrinkles, and black spot defects, they have significant shortcomings in practical applications: when it is necessary to disassemble and analyze fully charged cells in the mass production stage or to handle abnormal cells, the entire tray of cells must be transferred to a dedicated workstation to remove the constraints before operation can be carried out. This mandatory process dependence leads to a significant reduction in cell selection efficiency, while increasing the complexity of production line scheduling and time costs. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a portable unbinding tool for a restraint tray, comprising:

[0005] A substrate, wherein multiple driving components are fixed in the substrate, and a push rod is provided at the front end of the driving component, and detachable grippers are installed on both sides of the substrate.

[0006] The base plate is fixed to the restraint tray by the gripper, and then the push rod is pushed by the drive member to remove the limiting plate in the restraint tray and change the restraint tray from the restrained state to the unrestrained state.

[0007] Preferably, the fixing plate on the side of the restraint tray has multiple push holes, the inner side of the fixing plate has a movable push plate, the push rod is a U-shaped push rod, the push head of the U-shaped push rod is inserted into the corresponding push hole to push the push plate, thereby changing the restraint tray from the restrained state to the unrestrained state.

[0008] Preferably, the gripper is fixed to both ends of the substrate by a plurality of bolts.

[0009] Preferably, the gripper is provided with a U-shaped hole, and the gripper is fixed at both ends of the substrate by inserting the bolt into the U-shaped hole.

[0010] Preferably, the substrate is provided with a plurality of back support plates for fixing the drive component on the substrate.

[0011] Preferably, the back of the substrate is provided with a gripper limiting block.

[0012] Preferably, the gripper limiting block is disposed on the upper and lower sides of the mounting position of the gripper.

[0013] Preferably, the driving component is an electro-hydraulic press.

[0014] Preferably, it also includes an electronically controlled switch, which is electrically connected to the driving component.

[0015] Preferably, each of the U-shaped push rods includes two push heads.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] 1. The tooling can directly complete the unbinding operation at the current cell station, eliminating the need to transfer the entire reel of cells to a dedicated station. This saves logistics waiting time and equipment scheduling, increasing the efficiency of cell selection, anomaly handling, or full-charge disassembly several times over. Its portable design eliminates the need for fixed unbinding equipment or additional stations, reducing production line hardware investment and space occupation, while simplifying the operation process and reducing manual intervention and time costs.

[0018] 2. The modular design of the detachable gripper and drive components allows the tooling to adapt to different restraint tray types (such as insert type and screw type), meeting the needs of various scenarios such as square shell and soft-pack battery cells, and improving production compatibility.

[0019] 3. Avoid potential safety risks caused by vibration and collision during the circulation of battery cells, or when they are in a fully charged state, and ensure that the disassembly and analysis process is more controllable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the restraint tray in a preferred embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a portable unrestraint tool and a restraint tray installed together in a preferred embodiment of the present invention.

[0022] Figure 3 A front view of the portable unbinding tool in a preferred embodiment of the present invention;

[0023] Figure 4This is a schematic diagram of the side structure of the fixing plate of the restraint tray in a preferred embodiment of the present invention.

[0024] Figure 5 A bottom view of the portable unbinding tool in a preferred embodiment of this utility model;

[0025] Figure 6 A side view of the portable unbinding tool in a preferred embodiment of the present invention. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment; other embodiments that conform to the spirit of the present invention may also fall within its scope.

[0027] In a preferred embodiment of this utility model, based on the above-mentioned problems existing in the prior art, a portable unbinding tool 2 for a restraint tray 1 is provided, such as... Figure 1-6 As shown, it includes:

[0028] The substrate 205 has multiple driving components 201 fixed in it. The front end of the driving component 201 is provided with a push rod 202. Detachable grippers 207 are installed on both sides of the substrate 205.

[0029] The base plate 205 is fixed to the restraint tray 1 by the gripper 207, and then the push rod 202 is pushed by the drive member 201 to remove the limiting insert plate 101 in the restraint tray 1 and change the restraint tray from the restrained state to the unrestrained state.

[0030] Specifically, in this embodiment, the tooling is directly fixed to the restraint tray 1 by the gripper 207, achieving "in-situ release of restraint". The driving component 201 (such as a cylinder or electric push rod) pushes the push rod 202 to accurately push out the limit plate 101, quickly releasing the restraint force without moving the tray to other workstations, thus eliminating the dependence on transfer.

[0031] The detachable grippers adapt to different pallet sizes and structures, ensuring quick locking and unlocking of the tooling and restraint pallet. Operators only need to install the tooling and activate the drive to release the restraint within seconds, significantly reducing reliance on skilled workers, minimizing human error, and simplifying the operation process.

[0032] This invention, through the "in-situ operation" concept of portable tooling, completely breaks the dependence of traditional unconstrained processes on dedicated workstations, fundamentally solving the technical problems of low cell processing efficiency and complex production line scheduling. At the same time, it takes into account safety, compatibility and cost optimization, providing an innovative tool for efficient mass production and quality control of lithium batteries.

[0033] In a preferred embodiment of this utility model, a plurality of push holes 104 are provided on the fixing plate 102 on the side of the restraint tray, and a movable push plate is provided on the inner side of the fixing plate 102. The push rod is a U-shaped push rod, and the push head of the U-shaped push rod is inserted into the corresponding push hole to push the push plate, thereby changing the restraint tray from the restrained state to the unrestrained state.

[0034] Specifically, such as Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, first, the push head of the push rod 202 is inserted into the push hole 104 of the restraint tray, abutting against the push plate 105. Then, after fixing the portable unrestraint tool to the restraint tray 1 via the gripper 207, the drive unit 201 is activated to push the push rod 202 forward. Figure 2 (From the center to the left) The distance between the push plate 105 and the fixed plate 102 is widened by the push rod 202. When the distance is widened to the point that the insert plate 101 in the restraint tray can be taken out, the insert plate is taken out manually, and then the push rod 202 is retracted. At this time, the restraint grid plate 103 can slide freely, and the restraint tray changes from the restraint state to the unrestraint state.

[0035] In a preferred embodiment of this invention, each U-shaped push rod 202 includes two push heads.

[0036] Specifically, in this embodiment, a plurality of paired push holes 104 are provided on the fixing plate 102 of the restraint tray, so each U-shaped push rod 202 is provided with two push heads, corresponding to the number of push holes, to enhance stability.

[0037] In a preferred embodiment of the present invention, the gripper 207 is fixed to both ends of the base plate 205 by a plurality of bolts 208.

[0038] In a preferred embodiment of this utility model, such as Figure 5 As shown, the gripper 207 is provided with a U-shaped hole 209. The gripper 207 is fixed to both ends of the substrate 205 by inserting the bolt 208 into the U-shaped hole 209.

[0039] Specifically, in this embodiment, the U-shaped hole 209 on the gripper 207 allows the bolt 208 to slide laterally within the hole, eliminating the need for precise alignment with the fixing holes on the substrate and significantly simplifying the alignment operation during installation. This design enables the tooling to quickly adapt to restraint trays of different sizes or structures (such as square shells and soft packages), shortening tooling changeover time, and is particularly suitable for scenarios involving the production of mixed-model battery cells.

[0040] Modular compatibility: By adjusting the position of the bolt 208 in the U-shaped hole 209, the relative distance between the gripper 207 and the base plate 205 can be flexibly adjusted to meet the clamping requirements of different restraint tray shapes and sizes, and improve the versatility of tooling.

[0041] Multiple bolts 208 are distributed along both ends of the base plate 205 to form a symmetrical force-bearing structure, ensuring the rigid connection between the gripper 207 and the restraint tray 1, avoiding the tooling from shaking or falling off due to uneven force during the unrestraint process, and ensuring operational stability.

[0042] The gripper 207 is independently fixed by bolts 208, and can be disassembled, replaced or repaired separately without replacing the entire tooling base plate, thus reducing maintenance costs.

[0043] In a preferred embodiment of the present invention, a plurality of back support plates 206 are provided on the substrate 205 for fixing the drive member 201 on the substrate 205.

[0044] Specifically, the back support plates are distributed along the base plate, providing multi-point rigid support for the drive components. This effectively resists the reaction force generated when the push rod pushes out of the limiting plate, preventing base plate deformation or vibration and ensuring the stability of the drive component's operation. Multiple support plates evenly distribute the working load of the drive components, preventing excessive local stress from causing fatigue damage at the base plate or drive component connection points, and extending the tooling's service life.

[0045] In a preferred embodiment of the present invention, a gripper limiting block 210 is provided on the back side of the substrate 205.

[0046] In a preferred embodiment of this utility model, the gripper limiting block 210 is disposed on the upper and lower sides of the mounting position of the gripper 207.

[0047] Specifically, such as Figure 5 , Figure 6 As shown, gripper limiting blocks 210 are installed on the upper and lower sides of the mounting position of gripper 201. The upper and lower limiting blocks 210 form a "clamping" physical boundary, providing a clear positioning reference during the installation of gripper 207, eliminating manual alignment deviations, and ensuring that the relative position of gripper 207 and substrate 205 is always consistent, avoiding failure of tooling and restraint tray adaptation due to installation misalignment. During the unrestraint operation, the push force of the drive push rod may cause a small displacement between the gripper and the substrate. The limiting blocks 210, through upper and lower rigid constraints, prevent the longitudinal movement of gripper 207, ensuring a stable connection between tooling and tray.

[0048] In a preferred embodiment of this utility model, the drive component 201 is an electro-hydraulic press.

[0049] In a preferred embodiment of the present invention, an electric control switch 203 is further included. The electric control switch 203 is electrically connected to the drive component 201 and is connected to a power source via an external line 204 to provide power.

[0050] Specifically, the electro-hydraulic press can dynamically adjust the output force by feeding back thrust data in real time through pressure sensors and combining it with a closed-loop control algorithm. This ensures that the force of the push rod pushing out of the limit plate is uniform and controllable, avoiding process abnormalities caused by insufficient thrust (failure to release restraint) or overload (damage to the battery cell).

[0051] The electric control switch 203 is electrically connected to the drive component 201. The operator only needs to trigger the switch to start the unrestraint process, eliminating the complexity of manually operating the hydraulic valve and reducing the skill requirements for personnel.

[0052] The electrical control switch 203 can be connected to the production line PLC system via the external line 204 to realize automatic synchronization between tooling actions and production line rhythm, support unmanned or remote unconstrained operation, and provide an interface for future smart factory upgrades.

[0053] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made using the content of this specification and illustrations should be included within the protection scope of the present utility model.

Claims

1. A portable unrestraint tool for a restraint tray, characterized in that, include: A substrate, wherein multiple driving components are fixed in the substrate, and a push rod is provided at the front end of the driving component, and detachable grippers are installed on both sides of the substrate. The base plate is fixed to the restraint tray by the gripper, and then the push rod is pushed by the drive member to remove the limiting plate in the restraint tray and change the restraint tray from the restrained state to the unrestrained state.

2. The portable unbinding fixture according to claim 1, wherein a plurality of push holes are provided on the fixing plate on the side of the restraint tray, and a movable push plate is provided on the inner side of the fixing plate, characterized in that, The push rod is a U-shaped push rod. The push head of the U-shaped push rod is inserted into the corresponding push hole to push the push plate, thereby changing the restraint tray from a restrained state to a unrestrained state.

3. The portable restraint release tool according to claim 1, characterized in that, The gripper is fixed to both ends of the base plate by multiple bolts.

4. The portable restraint release tool according to claim 3, characterized in that, The gripper is provided with a U-shaped hole, and the gripper is fixed at both ends of the substrate by inserting the bolt into the U-shaped hole.

5. The portable restraint release tool according to claim 1, characterized in that, The substrate is provided with multiple back support plates for fixing the driving component on the substrate.

6. The portable restraint release tool according to claim 1, characterized in that, The back of the substrate is provided with a gripper limiting block.

7. The portable restraint release tooling according to claim 6, characterized in that, The gripper limiting blocks are located on the upper and lower sides of the gripper's mounting position.

8. The portable restraint release tool according to claim 1, characterized in that, The driving component is an electro-hydraulic press.

9. The portable restraint release tool according to claim 8, characterized in that, It also includes an electronically controlled switch, which is electrically connected to the drive unit.

10. The portable restraint release tool according to claim 2, characterized in that, Each of the U-shaped push rods includes two push heads.

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