Compatible automatic restraint adding and releasing device

Abstract

The utility model discloses a compatible automatic restraint adding and unlocking device which comprises a rack platform, a linear electric cylinder, a locking and unlocking module and a roller assembly are sequentially arranged on the rack platform, the roller assembly is used for guiding in and bearing a restraint tray, the locking and unlocking module is installed on the rack platform in a sliding mode, and the locking and unlocking module comprises a supporting rack and a locking and unlocking composite component. The transmission end of the linear electric cylinder is connected with the supporting rack through a floating connector, the locking and unlocking composite component is slidably and adjustably installed on the supporting rack, the restraining tray comprises a pressure calibration tool and a tray body arranged on the pressure calibration tool, and the locking and unlocking composite component is used for executing pressurization restraining or decompression releasing operation on the tray body. According to the utility model, by introducing the linear electric cylinder and the locking and unlocking composite component with modular adjustable design and cooperating with the roller assembly, the compatibility of the binding trays with different specifications is improved, and the time cost of equipment remodeling adjustment is reduced, so that the test efficiency and the equipment universality are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery manufacturing technology, and in particular to a compatible automatic restraint device. Background Technology

[0002] With the trend towards higher energy density in lithium-ion batteries, the expansion and deformation of cells during charging and discharging has become a core bottleneck restricting battery safety and energy density. The expansion and deformation of lithium-ion battery cells during charging and discharging directly leads to an increase in the spacing between internal thin films, causing instability in the interfacial pressure distribution between electrodes. This, in turn, triggers a chain reaction of failures such as uneven electrolyte wetting, SEI film rupture, and lithium dendrite growth. This not only exponentially increases the risk of thermal runaway but also significantly reduces the volumetric energy density of the battery system. Therefore, applying constant and controllable restraint pressure to the cells during charge-discharge testing has become a crucial technical means to balance safety and electrochemical performance. Currently, the industry commonly uses mechanical pressurization devices to apply restraint force to lithium batteries in test trays, but existing technology has significant drawbacks. Specifically, the unlocking process requires complete disassembly of the restraint components, which is not only inefficient but also prone to structural deformation due to repeated disassembly and assembly, increasing equipment maintenance costs. Furthermore, it is difficult to accommodate the restraint requirements of cell trays of different specifications, and the lack of modular design results in poor equipment versatility. Utility Model Content

[0003] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide a compatible automatic restraint device that solves the technical problems of complex unlocking operations, resulting in low testing efficiency, and difficulty in compatibility with different restraint trays in traditional restraint devices.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a compatible automatic restraint device, comprising a frame platform. A linear electric cylinder, a restraint module, and a roller assembly are sequentially arranged on the frame platform. The roller assembly is used to guide and support a restraint tray. The restraint module is slidably mounted on the frame platform and includes a support frame and a combined restraint component. The transmission end of the linear electric cylinder is connected to the support frame via a floating joint. The combined restraint component is slidably and adjustablely mounted on the support frame. The restraint tray includes a tray body and a pressure calibration fixture. The tray body is placed on the pressure calibration fixture. The combined restraint component performs pressure restraint or decompression release operations on the tray body through the pressure calibration fixture. A pressure sensor is provided between the support frame and the floating joint, and the pressure sensor is used to monitor and provide feedback on the axial pressure applied to the restraint tray in real time.

[0006] As a preferred embodiment, a first linear guide rail is further provided between the linear electric cylinder and the roller assembly. The first linear guide rail is mounted on the frame platform, and the support frame is mounted on the first linear guide rail via a first slider. The support frame can reciprocate along the axial direction of the first linear guide rail. The locking / unlocking composite component includes an upper support plate, a lower support plate, and a locking / unlocking motor. The upper and lower support plates are slidably and adjustablely mounted within the support frame and arranged in parallel. A second linear guide rail, arranged parallel to the first linear guide rail, is mounted on each opposite side of the upper and lower support plates. A motor support plate is slidably mounted on the second linear guide rail. The unlocking motor is fixed to the motor support plate. The first driving cylinder is also fixed to both the upper and lower support plates. The transmission end of the first driving cylinder is connected to the motor support plate and is used to drive the motor support plate to reciprocate along the second linear guide rail. The transmission end of the unlocking motor is set towards the pressure calibration fixture. The transmission end of the unlocking motor extends through the support frame to the outside and is fixed to the unlocking head. Locking and pressing composite components are provided on both sides of the unlocking head. Pen-shaped cylinders for driving the locking and pressing composite components are also installed on both the upper and lower support plates. The battery cell is placed on the tray body.

[0007] As a preferred embodiment, the pressure calibration fixture includes a calibration support plate. A first upright plate is fixed to one side of the calibration support plate near the locking / unlocking composite component, and a second upright plate is fixed to the other side. The first upright plate and the second upright plate are connected by a guide connecting rod located on symmetrical sides of the calibration support plate. The tray body is disposed on the calibration support plate and is fitted and fixedly connected to the guide connecting rod. The restraint tray is used to place battery cells. A partition is provided between adjacent battery cells. Multiple partitions are fitted and installed on the tray body at equal intervals. Movable pressure rods are installed through the partitions on symmetrical sides. Each end of the movable pressure rod is equipped with a top connector for pressing against the battery cell. A force-bearing plate is also provided between the tray body and the first upright plate. The force-bearing plate is axially movable and passes through the guide connecting rod. One side of the force-bearing plate abuts against the battery cell on the tray body near the locking / unlocking composite component, and the other side is provided with a first adjusting screw. The adjusting screw is screwed to the first upright plate. One end of the first adjusting screw abuts against the force plate, and the other end passes through the first upright plate and is provided with a snap-fit ​​protrusion adapted to the locking and unlocking head. The first upright plate is also provided with a clearance through groove corresponding to the locking and pressing composite component. The pen-shaped cylinder is located on the side of the support frame away from the linear electric cylinder. The roller assembly includes an upright frame, a rotating drum, and a second driving component. The upright frame is located between the first upright plate and the first linear guide rail and is installed on the frame platform. A third upright plate is also fixed at the end of the frame platform away from the linear electric cylinder. One end of the rotating drum is rotatably mounted on the upright frame, and the other end is rotatably mounted on the third upright plate. The rotating drum is arranged parallel to the first linear guide rail. The second driving component is installed at the bottom of the frame platform. A transmission main sprocket is installed at the transmission end of the second driving component. A transmission driven sprocket is installed at the end of the rotating drum away from the upright frame. The transmission main sprocket and the transmission driven sprocket are connected by a transmission chain.

[0008] As a preferred embodiment, the locking and pressing composite component includes a pressure rod and an unlocking sleeve rod. The pressure rod is fixedly connected to the support frame, and the unlocking sleeve rod is sleeved on the pressure rod. The pen-shaped cylinder is connected to the unlocking sleeve rod through a reversing component. An unlocking block protrudes from one end of the unlocking sleeve rod that passes through the clearance groove. A locking block that matches the unlocking block protrudes from the side of the force-bearing plate near the first upright plate. The pen-shaped cylinder is used to drive the unlocking sleeve rod to rotate around the pressure rod so that the unlocking block locks or separates from the locking block.

[0009] As a preferred embodiment, the first upright plate has a protruding arm on the side near the force-bearing plate, and a gripper is installed on the protruding arm. The force-bearing plate has a fitting groove, and a locking pin adapted to the gripper is installed in the fitting groove. The gripper includes two mutually hinged claws, and the side of the two claws that are close to each other is the clamping surface. The clamping surface includes a guide slope section, a straight section and a concave arc section connected in sequence. A barcode scanner assembly is also installed on the third upright plate.

[0010] As a preferred embodiment, a side-push cylinder is also installed on the side of the upright away from the second upright plate. The transmission end of the side-push cylinder passes through the upright and is equipped with a side-push strip plate. The side-push strip plate is arranged perpendicularly to the first linear guide rail. A telescopic blocking assembly is also provided between the side-push strip plate and the second upright plate. The telescopic blocking assembly is arranged on both sides of the frame platform symmetrically and below the roller assembly. The telescopic blocking assembly includes a telescopic cylinder installed at the bottom of the frame platform. The transmission end of the telescopic cylinder passes through the frame platform and is equipped with a blocking element. The blocking element is arranged parallel to the rotating drum. The telescopic stroke of the telescopic cylinder is greater than the height of the calibration support plate from the frame platform.

[0011] As a preferred embodiment, the side push bar is further provided with a rotary clamping assembly at both symmetrical ends. The rotary clamping assembly includes a mounting base, a rotary motor, and a clamping arm. The mounting base is fixed on the frame platform, and the rotary motor is mounted on the mounting base. One end of the clamping arm is connected to the drive end of the rotary motor, and the other end is provided with a clamping abutment block. The drive end of the rotary motor is further provided with a first sensor and a second sensor on both sides. The first sensor and the second sensor work together to limit the rotation angle of the rotary motor.

[0012] As a preferred embodiment, both ends of the upper and lower support plates are provided with second sliders, and third linear guides are installed on both sides of the support frame. The third linear guides are longitudinally perpendicular to the second linear guides. The upper and lower support plates can move axially along the third linear guides. Adjusting push rods are symmetrically fixed on the side of the lower support plate near the upper support plate. Multiple adjusting push rods pass through the upper support plate and are connected by a connecting horizontal plate. The connecting horizontal plate is parallel to the lower support plate. A first connecting block and a second connecting block are respectively installed on the connecting horizontal plate and the upper support plate. A second adjusting screw and a third adjusting screw are rotatably installed on the first and second connecting blocks, respectively. The second adjusting screw passes through the support frame and extends to the outside. The third adjusting screw passes through the connecting horizontal plate and the support frame in sequence and extends to the outside. Both the second and third adjusting screws are screwed to the support frame. A protruding terminal is provided at the end of the second and third adjusting screws that passes through the support frame and extends to the outside. The protruding terminal is used to install the operating wheel.

[0013] As a preferred embodiment, both the upper and lower support plates are equipped with high-flow capacity valves, and the support frame is equipped with a pressure regulating valve. The pressure regulating valve and the high-flow capacity valve work together to control the air pressure of the first drive cylinder.

[0014] As a preferred embodiment, the system also includes a frame housing mounted on the frame platform. An clearance opening is provided on the side of the frame housing near the roller assembly, and an over-height sensor is installed at the clearance opening. Inside the frame housing, near the top of the restraint tray, a fire sprinkler system, a carbon monoxide sensor, and a smoke sensor are also provided. The fire sprinkler system includes an electrically controlled valve, and the carbon monoxide sensor and smoke sensor are electrically connected to the electrically controlled valve. A drainage pipe is also provided at the bottom of the frame platform for discharging the fire-fighting water sprayed by the fire sprinkler system.

[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly reduces the impact of pressure fluctuations on test results by cooperating with the linear electric cylinder and the unlocking module, and combining the floating joint and pressure sensor to form a closed-loop feedback system. At the same time, by introducing a modular and adjustable unlocking composite component, combined with the use of roller assembly, the compatibility with restraint trays of different specifications is improved, the time cost of equipment changeover and adjustment is reduced, thereby significantly improving testing efficiency and equipment versatility.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a compatible automatic restraint attachment and release device according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the internal structure of a compatibility automatic restraint device according to an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of a roller assembly according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the locking / unlocking module and the restraint tray in a mating state according to an embodiment of this application;

[0021] Figure 5 This is an embodiment of the present application. Figure 4 Enlarged view of point A;

[0022] Figure 6 This is an embodiment of the present application. Figure 4Enlarged view of point B;

[0023] Figure 7 This is a schematic diagram of the internal structure of the unlocking / unlocking module according to an embodiment of this application;

[0024] Figure 8 This is a schematic diagram of the internal structure of the unlocking module from another perspective of an embodiment of this application;

[0025] Figure 9 This is a schematic diagram of the rotary clamping assembly structure according to an embodiment of this application;

[0026] Figure 10 This is a partial structural diagram of a compatibility automatic restraint device according to an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Rack platform; 11. First linear guide rail; 12. Third upright plate; 121. Barcode scanner assembly; 13. Telescopic blocking assembly; 131. Telescopic cylinder; 132. Blocking component; 14. Rack housing; 141. Clearance opening; 142. Ultra-high altitude sensor; 143. Fire sprinkler system; 15. Drainage pipe;

[0029] 20. Linear electric cylinder; 21. Floating joint; 22. Pressure sensor;

[0030] 30. Unlocking / unlocking module; 31. Support frame; 311. First slider; 32. Unlocking / unlocking composite component; 321. Upper support plate; 3211. Second connecting block; 3212. Third adjusting screw; 322. Lower support plate; 3221. Adjusting push rod; 3222. Connecting cross plate; 3223. First connecting block; 3224. Second adjusting screw; 323. Unlocking / unlocking motor; 3231. Unlocking / unlocking head; 324. Second linear guide rail; 325. Motor support plate; 326. First drive cylinder; 327. Second slider; 328. Third linear guide rail; 329. Protruding column terminal; 33. Operating wheel; 34. High flow capacity valve; 35. Pressure regulating valve;

[0031] 40. Roller assembly; 41. Frame; 411. Side push cylinder; 412. Side push bar; 42. Rotary drum; 43. Second drive component; 44. Transmission chain;

[0032] 50. Restraint tray; 51. Partition; 511. Movable pressure bar; 512. Top connector; 52. Tray body;

[0033] 60. Pressure calibration fixture; 61. Calibration support plate; 62. First vertical plate; 621. Clearance slot; 622. Protruding arm; 623. Gripper; 624. Gripper; 625. Clamping surface; 6251. Guide slope section; 6252. Straight surface section; 6253. Concave arc surface section; 63. Second vertical plate; 64. Force plate; 641. Locking block; 642. Fitting groove; 643. Locking post; 65. First adjusting screw; 651. Locking protrusion; 66. Guide connecting rod;

[0034] 70. Locking and pressing composite component; 71. Pen-shaped cylinder; 72. Pressure rod; 73. Unlocking sleeve rod; 731. Unlocking block; 74. Reversing component;

[0035] 80. Rotary clamping assembly; 81. Mounting base; 82. Rotary motor; 83. Clamping arm; 84. Clamping abutment block; 85. First sensor; 86. Second sensor. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0037] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0038] Please see Figures 1 to 10This utility model provides a compatible automatic restraint application and release device, including a frame platform 10. A linear electric cylinder 20, an application and release module 30, and a roller assembly 40 are sequentially arranged on the frame platform 10. The roller assembly 40 is used to guide and support a restraint tray 50, enabling rapid positioning and efficient transfer of the restraint tray 50. Multiple application and release modules 30 are arranged in parallel and slidably mounted on the frame platform 10. The modular array design allows for simultaneous compatibility with multiple specifications of restraint trays 50, and each application and release module 30 can operate independently without interference, providing a flexible configuration solution for testing battery cells of different sizes. The application and release module 30 includes a supporting frame 31 and an application and release composite component 32. The linear electric cylinder 20 serves as the core pressure control unit, with its transmission end connected to the supporting frame 31 via a floating joint 21, thereby controlling the movement of the entire application and release module 30 and thus controlling the pressure applied to the restraint tray 50. The locking / unlocking composite component 32 is slidably and adjustablely mounted on the support frame 31. The restraint tray 50 includes a tray body 52 and a pressure calibration fixture 60. The tray body 52 is placed on the pressure calibration fixture 60. The locking / unlocking composite component 32 performs pressure restraint or decompression release operations on the tray body 52 through the pressure calibration fixture 60. A pressure sensor 22 is provided between the support frame 31 and the floating joint 21. The pressure sensor 22 is used to coordinate with the linear electric cylinder 20 to form a closed-loop control, so as to monitor and provide feedback on the axial pressure applied to the restraint tray 50 in real time, and assist the linear electric cylinder 20 in achieving precise pressure control.

[0039] In this embodiment, please refer to Figure 2 , Figure 7 and Figure 8A first linear guide rail 11 is provided between the linear cylinder 20 and the roller assembly 40. The first linear guide rail 11 is mounted on the frame platform 10. The support frame 31 is mounted on the first linear guide rail 11 via a first slider 311. The support frame 31 can reciprocate along the axial direction of the first linear guide rail 11, significantly improving the consistency of the direction of the restraint pressure application. The locking / unlocking composite component 32 includes an upper support plate 321, a lower support plate 322, and a locking / unlocking motor 323. The upper support plate 321 and the lower support plate 322 are slidably and adjustablely mounted in the support frame 31 and arranged in parallel. On the opposite side of the upper support plate 321 and the lower support plate 322, a second linear guide rail 324 is mounted, arranged in parallel with the first linear guide rail 11. A motor support plate 325 is slidably mounted on the second linear guide rail 324 to ensure the linear motion accuracy of the motor support plate 325 in the horizontal direction. The locking / unlocking motor 323 is fixed on the motor support plate 325. First drive cylinders 326 are also fixed on both the upper support plate 321 and the lower support plate 322. The transmission end of the first drive cylinder 326 is connected to the motor support plate 325 and is used to drive the motor support plate 325 to reciprocate axially along the second linear guide rail 324. The transmission end of the locking / unlocking motor 323 is positioned towards the pressure calibration fixture 60. The transmission end of the locking / unlocking motor 323 extends outward through the support frame 31 and is fixed with a locking / unlocking head 3231. The locking / unlocking motor 323 serves as the power source for the locking / unlocking head 3231, controlling its rotation. Simultaneously, it identifies the output torque by measuring the power level, thereby controlling the rotational torque of the locking / unlocking head 3231. The first drive cylinder 326 drives the locking / unlocking motor 323 to reciprocate, thus controlling the extension and retraction of the locking / unlocking head 3231. The locking head 3231 is symmetrically provided with locking and pressing composite components 70 on both sides. The upper support plate 321 and the lower support plate 322 are also equipped with pen-shaped cylinders 71 for driving the locking and pressing composite components 70. The battery cell is placed on the tray body 52.

[0040] Further, please refer to Figures 4 to 6The pressure calibration fixture 60 includes a calibration support plate 61, which provides a stable reference plane to ensure uniform pressure application. A first upright plate 62 is fixed to one side of the calibration support plate 61 near the unlocking / unlocking composite component 32, and a second upright plate 63 is fixed to the other side. The first upright plate 62 and the second upright plate 63 are connected by a guide connecting rod 66, which is located on both symmetrical sides of the calibration support plate 61, creating a bidirectional constraint mechanism to improve the torsional stiffness of the structure. The tray body 52 is mounted on the calibration support plate 61 and is fitted and fixedly connected to the guide connecting rod 66, enabling rapid positioning and rigid coupling between the tray body 52 and the calibration fixture. A partition 51 is provided between adjacent cells. Multiple partitions 51 are installed at equal intervals on the tray body 52, forming a standardized partition layout to accommodate cells of different sizes. Movable pressure rods 511 are symmetrically installed on both sides of the partition 51. Each movable pressure rod 511 has a top connector 512 at its end. The top connector 512 is used for pressure contact with the battery cell. The top connector 512 uses an elastic contact interface to avoid damage to the battery cell surface while ensuring pressure transmission efficiency and optimizing interface contact uniformity. A force-bearing plate 64 is also provided between the tray body 52 and the first upright plate 62. The force-bearing plate 64 is axially movable and passes through the guide connecting rod 66, ensuring linear accuracy of the motion trajectory through a guide constraint mechanism. One side of the force-bearing plate 64 abuts against the battery cell on the tray body 52 near the unlocking / unlocking composite component 32, establishing a pressure transmission path to achieve pressure constraint on the battery cell. The other side is provided with a first adjusting screw 65, which is screwed to the first upright plate 62, converting rotational motion into linear displacement output through a threaded connection. One end of the first adjusting screw 65 abuts against the force-bearing plate 64, forming a rigid pushing structure. The other end passes through the first vertical plate 62 and is provided with a locking protrusion 651 adapted to the locking / unlocking head 3231, ensuring reliable power transmission between the locking / unlocking head 3231 and the first adjusting screw 65. That is, when the first adjusting screw 65 needs to be rotated, the first drive cylinder 326 pushes out the locking / unlocking head 3231 to cooperate with the locking protrusion 651, performing a locking or unlocking operation. The first vertical plate 62 is also provided with a clearance slot 621 corresponding to the locking and pressing composite component 70, ensuring the full-stroke operating space of the locking and pressing composite component 70. The pen-shaped cylinder 71 is located on the side of the support frame 31 away from the linear electric cylinder 20, optimizing the spatial layout to reduce the lateral dimension of the equipment. Please refer to Figure 3The roller assembly 40 includes a stand 41, a rotating drum 42, and a second drive component 43. The stand 41 is disposed between the first upright plate 62 and the first linear guide rail 11 and is mounted on the frame platform 10, serving as the mounting base for the rotating drum 42 to provide radial support rigidity. A third upright plate 12 is also fixed at one end of the frame platform 10 away from the linear electric cylinder 20. One end of the rotating drum 42 is rotatably mounted on the stand 41, and the other end is rotatably mounted on the third upright plate 12. The rotating drum 42 is arranged parallel to the first linear guide rail 11 to ensure the consistency between the conveying direction of the restraint tray 50 and the pressure axis. Multiple rotating drums 42 arranged in parallel form a conveyor line. The second drive unit 43 is installed at the bottom of the frame platform 10 to achieve a concealed layout of the power system to improve equipment safety. The drive end of the second drive unit 43 is equipped with a drive sprocket, and the end of the rotating drum 42 away from the upright 41 is equipped with a drive sprocket. The drive sprocket and the drive sprocket are connected by a drive chain 44 to form a closed-loop transmission system to ensure the phase consistency of the synchronous operation of multiple rotating drums 42.

[0041] Specifically, please refer to Figures 6 to 8 The locking and pressing composite component 70 is the mechanism that contacts the unlocking module 30 with the restraint tray 50. It is used to realize the two processes of applying pressure to the restraint tray 50 or pulling out the force plate 64. It includes a pressure rod 72 and an unlocking sleeve rod 73. The pressure rod 72 serves as the core force transmission component to realize the rigid transmission of axial constraint force, while the unlocking sleeve rod 73 realizes the decoupling control of rotational freedom and axial constraint. Specifically, the pressure rod 72 is fixedly connected to the support frame 31 to form a stable force transmission path. The locking and unlocking sleeve rod 73 is sleeved on the pressure rod 72. The pen-shaped cylinder 71 is connected to the locking and unlocking sleeve rod 73 through the reversing member 74. The reversing member 74 converts the linear motion of the pen-shaped cylinder 71 into rotational torque output. The locking and unlocking sleeve rod 73 has a locking and unlocking block 731 protruding at one end through the clearance slot 621. The force plate 64 has a locking block 641 that matches the locking and unlocking block 731 protruding on the side near the first upright plate 62. The pen-shaped cylinder 71 is used to drive the locking and unlocking sleeve rod 73 to rotate around the pressure rod 72 so that the locking and unlocking block 731 and the locking block 641 are locked or separated.

[0042] Here, the pressure application process involves the linear electric cylinder 20 pushing out the unlocking module 30, allowing the pressure rod 72 to directly apply pressure to the force plate 64, thereby clamping the battery cell. The pull-out process involves releasing the first adjusting screw 65 from the force plate 64, then the pen-shaped cylinder 71 actuates, causing the unlocking sleeve rod 73 to rotate 90°. At this point, the unlocking block 731 locks with the locking block 641, and the linear electric cylinder 20 drives the unlocking module 30 to move away from the roller assembly 40, thereby pulling the force plate 64 back and releasing the clamping of the battery cell.

[0043] Please see Figure 5The first upright plate 62 has a protruding arm 622 on the side near the force-bearing plate 64. A gripper 623 is installed on the protruding arm 622. The force-bearing plate 64 has a fitting groove 642, in which a locking post 643 adapted to the gripper 623 is installed. The gripper 623 includes two mutually hinged jaws 624. The side of the two jaws 624 that is close to each other is the clamping surface 625. The clamping surface 625 includes a guide slope section 6251, a straight section 6252, and a concave arc section 6253 connected in sequence. The multi-segment design optimizes the contact stress distribution and facilitates the engagement and disengagement of the gripper 623 and the locking post 643. A barcode scanner assembly 121 is also installed on the third upright plate 12. The barcode scanner assembly 121 is used to identify the identification code of the restraint tray 50 to identify the specification and model of the restraint tray 50.

[0044] Please see Figure 3 A side-push cylinder 411 is also installed on the side of the upright 41 away from the second upright plate 63. The transmission end of the side push passes through the upright 41 and is equipped with a side-push strip 412, which is used to fix the restraint tray 50 by side-push. When the unlocking module 30 pulls out the force plate 64, it fixes the restraint tray 50, making the restraint tray 50 fixed and reducing the friction between the restraint tray 50 and the rotating drum 42. The side-push strip 412 is arranged perpendicular to the first linear guide rail 11. A telescopic blocking assembly 13 is also provided between the side-push strip 412 and the second upright plate 63. The telescopic blocking assembly 13 is used to block the restraint tray 50 placed on the conveyor line. The telescopic blocking assembly 13 is set on both sides of the frame platform 10. The mechanical balance of the blocking action is ensured by the dual-side synchronous drive. The telescopic blocking assembly 13 is located below the roller assembly 40 and adopts a sunken layout to avoid the risk of motion interference. The telescopic blocking assembly 13 includes a telescopic cylinder 131 installed at the bottom of the frame platform 10. The transmission end of the telescopic cylinder 131 passes through the frame platform 10 and is equipped with a blocking element 132. The blocking element 132 is arranged parallel to the rotating drum 42. The telescopic stroke of the telescopic cylinder 131 is greater than the height of the calibration support plate 61 to the frame platform 10, providing stroke redundancy to ensure the universal blocking requirements of restraint trays 50 of different specifications.

[0045] Please refer to Figure 3 and Figure 9The side push bar 412 is symmetrically equipped with rotary clamping assemblies 80 at both ends, forming a distributed clamping system to improve adaptability to multiple working conditions. The rotary clamping assemblies 80, in conjunction with the telescopic blocking assembly 13, achieve clamping and positioning of the restraint tray 50. The rotary clamping assembly 80 includes a mounting base 81, a rotary motor 82, and a clamping arm 83. The mounting base 81 is fixed on the frame platform 10, and the rotary motor 82 is mounted on the mounting base 81. One end of the clamping arm 83 is connected to the transmission end of the rotary motor 82, and the other end is equipped with a clamping abutment block 84. The transmission end of the rotary motor 82 is also equipped with a first sensor 85 and a second sensor 86 on both sides. The first sensor 85 and the second sensor 86 work together to limit the rotation angle of the rotary motor 82. Among them, the first sensor 85 acts as an extreme position protection switch to prevent mechanical overshoot, and the second sensor 86 acts as an origin detection device to achieve initial position calibration. In this scheme, the limited rotation angle of the rotary motor 82 is 90°.

[0046] Furthermore, please refer to Figure 7 and Figure 8 Both ends of the upper support plate 321 and the lower support plate 322 are provided with second sliders 327. Third linear guide rails 328 are installed on both sides of the support frame 31. The third linear guide rails 328 are longitudinally perpendicular to the second linear guide rails 324. The upper support plate 321 and the lower support plate 322 can move axially along the third linear guide rails 328, forming a multi-degree-of-freedom adjustment system to accommodate restraint trays 50 of different heights. Adjusting push rods 3221 are symmetrically fixed on the side of the lower support plate 322 near the upper support plate 321. Multiple adjusting push rods 3221 pass through the upper support plate 321 and are connected by a connecting horizontal plate 3222. The connecting horizontal plate 3222 is parallel to the lower support plate 322, maintaining the geometric stability of the overall frame to prevent eccentric deformation. A first connecting block 3223 and a second connecting block 3211 are respectively installed on the connecting horizontal plate 3222 and the upper support plate 321. A second adjusting screw 3224 and a third adjusting screw 3212 are respectively rotatably installed on the first connecting block 3223 and the second connecting block 3211. The second adjusting screw 3224 passes through the support frame 31 and extends to the outside. The third adjusting screw 3212 passes through the connecting horizontal plate 3222 and the support frame 31 in sequence and extends to the outside. All three adjusting screws 3212 are screwed to the support frame 31. The second adjusting screw 3224 and the third adjusting screw 3212 are provided with a protruding terminal 329 at one end that passes through the support frame 31 and extends to the outside. The protruding terminal 329 is used to install the operating wheel 33. By rotating the operating wheel 33, the position of the upper support plate 321 and the lower support plate 322 is adjusted to ensure that the locking head 3231 corresponds to the locking protrusion on the first adjusting screw 65, thereby accommodating restraint trays 50 of different specifications.

[0047] Both the upper support plate 321 and the lower support plate 322 are equipped with high-flow capacity valves 34, and the support frame 31 is equipped with a pressure regulating valve 35. The pressure regulating valve 35 and the high-flow capacity valve 34 work together to control the air pressure of the first drive cylinder 326, thus constructing a closed-loop air pressure control system and realizing dynamic pressure compensation function.

[0048] Please see Figure 1 and Figure 10 The compatibility automatic restraint device also includes a frame housing 14, which is mounted on a frame platform 10. A clearance opening 141 is provided on the side of the frame housing 14 near the roller assembly 40 to ensure the smooth entry and exit of the restraint tray 50. An over-height sensor 142 is installed at the clearance opening 141 to detect whether there are foreign objects or protruding battery cells on the restraint tray 50. Inside the frame housing 14, near the top of the restraint tray 50, a fire sprinkler system 143, a carbon monoxide sensor, and a smoke sensor are also provided. The fire sprinkler system 143 includes an electrically controlled valve. The carbon monoxide sensor and smoke sensor are electrically connected to the electrically controlled valve. The carbon monoxide sensor and smoke sensor are used to detect the carbon monoxide and smoke content inside the equipment in real time. If the content is too high, the electrically controlled valve is triggered, and the fire sprinkler system 143 starts, spraying fire-fighting water to extinguish the fire. A drain pipe 15 is also provided at the bottom of the frame platform 10 to discharge the fire-fighting water sprayed by the fire sprinkler system 143.

[0049] The compatibility automatic restraint application and release device mainly consists of two processes: restraint application and restraint release. Details are as follows:

[0050] The restraint process begins with the roller assembly 40 conveying the restraint tray 50 to the designated position. The telescopic blocking assembly 13 then blocks the restraint tray 50. Next, the rotating clamping assembly 80 performs a clamping and positioning operation. The barcode scanner assembly 121 scans the identification code on the restraint tray 50 to determine its model and specifications. The linear electric cylinder 20 pushes out the unlocking / unlocking module 30, and the pressure rod 72 applies pressure to the force plate 64, pressing the battery cells on the restraint tray 50. Finally, the first drive cylinder 326 pushes the unlocking / unlocking motor 323 to engage / unlock the battery. The head 3231 is extended and engages with the locking protrusion on the first adjusting screw 65. The locking / unlocking motor 323 drives the locking / unlocking head 3231 to rotate until the locking / unlocking motor 323 detects that the output torque has reached the preset value. At this time, the first adjusting screw 65 is locked. Then, the first driving cylinder 326 drives the locking / unlocking motor 323 to retract, causing the locking / unlocking head 3231 to retract. The linear electric cylinder 20 then drives the locking / unlocking module 30 to retract to the initial position. Subsequently, the telescopic blocking assembly 13 is lowered, and the roller assembly 40 transports the restraint tray 50 to the next station.

[0051] The unbinding process involves the roller assembly 40 conveying the restraint tray 50 to a designated position, followed by the telescopic blocking assembly 13 blocking the restraint tray 50. Then, the rotary clamping assembly 80 performs a clamping and positioning operation. The barcode scanner assembly 121 scans the identification code on the restraint tray 50 to determine its model and specifications. The linear electric cylinder 20 pushes out the unlocking module 30, and the pressure rod 72 applies pressure to the force plate 64, pressing the battery cells on the restraint tray 50. Then, the first drive cylinder 326 pushes the unlocking motor 323, causing the unlocking head 3231 to extend and engage with the locking protrusion on the first adjusting screw 65. The unlocking motor 323 drives the unlocking head 3231 to perform a rotational operation opposite to the direction of the restraint application process. Until the unlocking motor 323 detects that the output torque has reached the preset value, the first adjusting screw 65 retracts to the initial position, the telescopic side push assembly extends, and the restraint tray 50 is fixed to the side. The pen-shaped cylinder 71 drives the unlocking sleeve rod 73 to rotate 90° through the reversing component 74, so that the unlocking block 731 locks with the locking block 641 on the force plate 64. Then the linear electric cylinder 20 pulls back the unlocking module 30, and the locking block 641 moves synchronously. At this time, the force plate 64 is pulled out, releasing the pressure on the battery cell. Finally, the pen-shaped cylinder 71 rotates the unlocking sleeve rod 73 back to its original position, and the linear electric cylinder 20 pulls the unlocking module 30 back to its initial position. Then the telescopic blocking assembly 13 descends, and the roller assembly 40 transports the restraint tray 50 to the next station.

[0052] Since the restraint trays 50 of different specifications and models have different positions of the first adjusting screw 65, the operator can adjust the position of the upper support plate 321 and the lower support plate 322 by rotating the operating wheel 33 to ensure that the locking head 3231 and the locking protrusion on the first adjusting screw 65 are in corresponding cooperation.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compatible automatic restraint application and release device, characterized in that: The system includes a frame platform (10), on which a linear electric cylinder (20), an unlocking / unlocking module (30), and a roller assembly (40) are sequentially mounted. The roller assembly (40) is used to guide and support the restraint tray (50). The unlocking / unlocking module (30) is slidably mounted on the frame platform (10). The unlocking / unlocking module (30) includes a support frame (31) and an unlocking / unlocking composite component (32). The transmission end of the linear electric cylinder (20) is connected to the support frame (31) through a floating joint (21). The unlocking / unlocking composite component (32) is slidably adjustable. The restraint tray (50) is mounted on the support frame (31) and includes a tray body (52) and a pressure calibration fixture (60). The tray body (52) is placed on the pressure calibration fixture (60). The locking and unlocking composite component (32) performs pressure restraint or depressurization release operations on the tray body (52) through the pressure calibration fixture (60). A pressure sensor (22) is provided between the support frame (31) and the floating joint (21). The pressure sensor (22) is used to monitor and provide feedback on the axial pressure applied to the restraint tray (50) in real time.

2. The compatible automatic restraint attachment and release device according to claim 1, characterized in that: A first linear guide rail (11) is provided between the linear electric cylinder (20) and the roller assembly (40). The first linear guide rail (11) is installed on the frame platform (10). The support frame (31) is installed on the first linear guide rail (11) via a first slider (311). The support frame (31) can reciprocate along the axial direction of the first linear guide rail (11). The unlocking / unlocking composite component (32) includes an upper support plate (321), a lower support plate (322), and an unlocking / unlocking motor (323). The upper support plate (321) and the lower support plate (322) are slidably and adjustablely installed in the support frame (31) and arranged in parallel. A second linear guide rail (324) is installed on the opposite side of the upper support plate (321) and the lower support plate (322) and is arranged in parallel with the first linear guide rail (11). A motor support plate (325) is slidably installed on the second linear guide rail (324). The unlocking / unlocking... The motor (323) is fixed on the motor support plate (325). A first drive cylinder (326) is also fixed on both the upper support plate (321) and the lower support plate (322). The transmission end of the first drive cylinder (326) is connected to the motor support plate (325) and is used to drive the motor support plate (325) to reciprocate axially along the second linear guide rail (324). The transmission end of the unlocking / unlocking motor (323) moves towards the pressure calibration fixture (60). The direction setting of the unlocking motor (323) is such that the transmission end of the unlocking motor (323) extends to the outside through the support frame (31) and is fixedly provided with an unlocking head (3231). The unlocking head (3231) is provided with locking and pressing composite components (70) on both sides symmetrically. The upper support plate (321) and the lower support plate (322) are also equipped with pen-shaped cylinders (71) for driving the locking and pressing composite components (70). The battery cell is placed on the tray body (52).

3. The compatible automatic restraint application and release device according to claim 2, characterized in that: The pressure calibration fixture (60) includes a calibration support plate (61). A first upright plate (62) is fixed on one side of the calibration support plate (61) near the unlocking / unlocking composite component (32), and a second upright plate (63) is fixed on the other side. The first upright plate (62) and the second upright plate (63) are connected by a guide connecting rod (66). The guide connecting rod (66) is located on both sides of the calibration support plate (61). The tray body (52) is disposed on the calibration support plate (61) and is fitted and fixedly connected to the guide connecting rod (66). A partition plate (51) is provided between adjacent cells. Multiple partition plates (51) are fitted and installed at equal intervals on the tray body (52). On the upper part, movable pressure rods (511) are symmetrically installed on both sides of the partition (51). Each end of the movable pressure rod (511) is equipped with a top connector (512). The top connector (512) is used to press against the battery cell. A force-bearing plate (64) is also provided between the tray body (52) and the first upright plate (62). The force-bearing plate (64) is axially movable and passes through the guide connecting rod (66). One side of the force-bearing plate (64) abuts against the battery cell on the tray body (52) near the unlocking / unlocking composite component (32). The other side is provided with a first adjusting screw (65). The first adjusting screw (65) is screwed to the first upright plate (62). One end of the first adjusting screw (65) abuts against the force plate (64), and the other end passes through the first upright plate (62) and is provided with a snap-fit ​​protrusion (651) adapted to the locking and unlocking head (3231). The first upright plate (62) is also provided with a clearance through groove (621) corresponding to the locking and pressing composite component (70). The pen-shaped cylinder (71) is located on the side of the support frame (31) away from the linear electric cylinder (20). The roller assembly (40) includes an upright (41), a rotating drum (42), and a second driving member (43). The upright (41) is located between the first upright plate (62) and the first linear guide rail (11) and is installed... The machine is mounted on the frame platform (10), and a third vertical plate (12) is fixed at one end of the frame platform (10) away from the linear electric cylinder (20). One end of the rotating drum (42) is rotatably mounted on the upright (41), and the other end is rotatably mounted on the third vertical plate (12). The rotating drum (42) is arranged parallel to the first linear guide rail (11). The second driving member (43) is mounted at the bottom of the frame platform (10). A main drive sprocket is mounted on the transmission end of the second driving member (43). A driven sprocket is mounted at one end of the rotating drum (42) away from the upright (41). The main drive sprocket and the driven sprocket are connected by a transmission chain (44).

4. The compatible automatic restraint attachment and release device according to claim 3, characterized in that: The locking and pressing composite component (70) includes a pressure rod (72) and an unlocking sleeve rod (73). The pressure rod (72) is fixedly connected to the support frame (31). The unlocking sleeve rod (73) is sleeved on the pressure rod (72). The pen-shaped cylinder (71) is connected to the unlocking sleeve rod (73) through a reversing component (74). The unlocking sleeve rod (73) has an unlocking block (731) protruding at one end through the clearance groove (621). The force plate (64) has a locking block (641) protruding on the side near the first upright plate (62) that matches the unlocking block (731). The pen-shaped cylinder (71) is used to drive the unlocking sleeve rod (73) to rotate around the pressure rod (72) so that the unlocking block (731) and the locking block (641) are locked or separated.

5. The compatible automatic restraint attachment and release device according to claim 3, characterized in that: The first upright plate (62) has a protruding arm (622) on the side near the force plate (64), and a gripper (623) is installed on the protruding arm (622). The force plate (64) has a fitting groove (642), and a locking post (643) adapted to the gripper (623) is installed in the fitting groove (642). The gripper (623) includes two mutually hinged jaws (624). The side of the two jaws (624) that are close to each other is the clamping surface (625). The clamping surface (625) includes a guide slope section (6251), a straight section (6252), and a concave arc section (6253) connected in sequence. The third upright plate (12) is also equipped with a barcode scanner assembly (121).

6. The compatible automatic restraint attachment and release device according to claim 3, characterized in that: A side-push cylinder (411) is also installed on the side of the upright (41) away from the second upright plate (63). The transmission end of the side-push cylinder passes through the upright (41) and is equipped with a side-push strip (412). The side-push strip (412) is arranged perpendicular to the first linear guide rail (11). A telescopic blocking assembly (13) is also provided between the side-push strip (412) and the second upright plate (63). The telescopic blocking assembly (13) is arranged on both sides of the frame platform (10). Located below the roller assembly (40), the telescopic blocking assembly (13) includes a telescopic cylinder (131) installed at the bottom of the frame platform (10). The transmission end of the telescopic cylinder (131) passes through the frame platform (10) and is equipped with a blocking member (132). The blocking member (132) is arranged parallel to the rotating drum (42). The telescopic stroke of the telescopic cylinder (131) is greater than the height of the calibration support plate (61) to the frame platform (10).

7. The compatible automatic restraint attachment and release device according to claim 6, characterized in that: The side push bar (412) is also provided with a rotary clamping assembly (80) at both symmetrical ends. The rotary clamping assembly (80) includes a mounting base (81), a rotary motor (82) and a clamping arm (83). The mounting base (81) is fixed on the frame platform (10). The rotary motor (82) is mounted on the mounting base (81). One end of the clamping arm (83) is connected to the transmission end of the rotary motor (82), and the other end is provided with a clamping abutment block (84). The two sides of the transmission end of the rotary motor (82) are also provided with a first sensor (85) and a second sensor (86). The first sensor (85) and the second sensor (86) work together to limit the rotation angle of the rotary motor (82).

8. The compatible automatic restraint attachment and release device according to claim 2, characterized in that: The upper support plate (321) and the lower support plate (322) are each provided with a second slider (327) at both ends. The support frame (31) is equipped with a third linear guide rail (328) on both sides. The third linear guide rail (328) is longitudinally perpendicular to the second linear guide rail (324). The upper support plate (321) and the lower support plate (322) can move axially along the third linear guide rail (328). The lower support plate (322) is symmetrically fixed with adjusting push rods (3221) on the side near the upper support plate (321). Multiple adjusting push rods (3221) pass through the upper support plate (321) and are connected by a connecting horizontal plate (3222). The connecting horizontal plate (3222) is parallel to the lower support plate (322). The connecting horizontal plate (3222) and the upper support plate (321) are respectively equipped with a first connecting block (3223). The first connecting block (3223) and the second connecting block (3211) are respectively rotatably mounted with a second adjusting screw (3224) and a third adjusting screw (3212). The second adjusting screw (3224) passes through the support frame (31) and extends to the outside. The third adjusting screw (3212) passes through the connecting cross plate (3222) and the support frame (31) in sequence and extends to the outside. The second adjusting screw (3224) and the third adjusting screw (3212) are both screwed to the support frame (31). The end of the second adjusting screw (3224) and the third adjusting screw (3212) that passes through the support frame (31) and extends to the outside is provided with a protruding terminal (329). The protruding terminal (329) is used to install the operating wheel (33).

9. The compatible automatic restraint application and release device according to claim 2, characterized in that: Both the upper support plate (321) and the lower support plate (322) are equipped with high flow capacity valves (34), and the support frame (31) is equipped with a pressure regulating valve (35). The pressure regulating valve (35) and the high flow capacity valve (34) work together to control the air pressure of the first drive cylinder (326).

10. The compatible automatic restraint attachment and release device according to claim 1, characterized in that: It also includes a frame housing (14), which is mounted on the frame platform (10). The frame housing (14) has a clearance opening (141) on the side near the roller assembly (40). An over-height sensor (142) is installed at the clearance opening (141). Inside the frame housing (14), near the top of the restraint tray (50), a fire sprinkler system (143), a carbon monoxide sensor, and a smoke sensor are also provided. The fire sprinkler system (143) includes an electrically controlled valve. The carbon monoxide sensor and the smoke sensor are electrically connected to the electrically controlled valve. A drain pipe (15) is also provided at the bottom of the frame platform (10). The drain pipe (15) is used to discharge the fire water sprayed by the fire sprinkler system (143).

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