Production equipment of power battery module fastening belt

Abstract

The present application relates to the technical field of power battery, especially relates to a production equipment of power battery module fastening belt. The first motor is installed in the shell, the output shaft of the first motor is fixedly connected with a rotating shaft which is rotationally connected with the shell, the rotating shaft is rotationally connected with two fixed discs which are symmetrically distributed and are both fixedly connected with the shell, the fixed discs are slidably connected with a plurality of sliding blocks which are circumferentially and uniformly distributed, and a clamping block is arranged between every two adjacent sliding blocks on different fixed discs. The steel belt is limited by the clamping block, when the steel belt is broken due to tension and the steel belt roll tends to spread out, the steel belt roll extrudes the clamping block to move, the clamping block buffers the force of the steel belt roll, and the steel belt roll is clamped by the circumferentially distributed clamping blocks during storage, so that the probability of the steel belt roll breaking open is reduced, and the safety of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of power battery technology, and in particular to a production equipment for a power battery module fastening band. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the safety requirements for power battery modules are increasing. As a key structural component of the battery module, the production quality of fastening straps directly affects the structural stability of the battery pack. During the production and R&D process, our personnel discovered that existing fastening strap production equipment has significant shortcomings in the winding and storage of raw materials (usually steel strip coils). The raw material for fastening straps is a thin steel strip, which needs to be wound and unwound during use. If the steel strip breaks due to insufficient strength or excessive tension during the winding process, the wound portion of the steel strip coil will break apart. Furthermore, existing steel strip coils are generally only fixed at the outer end during storage and transportation, which leads to uneven stress distribution around the circumference of the steel strip coil. If the steel strip coil is bumped during transportation, the internal stress of the steel strip coil will be activated, causing the steel strip coil to break apart. The broken steel strip coil will scatter in all directions, which can easily scratch and injure operators, affecting the safety of the fastening strap production process. Summary of the Invention

[0003] In order to overcome the shortcomings mentioned in the background art, the present invention provides a production equipment for fastening straps of power battery modules.

[0004] The technical implementation of the present invention is as follows: a production equipment for fastening straps of power battery modules, comprising a first motor installed on a housing, the output shaft of the first motor being fixedly connected to a rotating shaft rotatably connected to the housing, the rotating shaft being rotatably connected to two fixed disks symmetrically distributed and both fixedly connected to the housing, the fixed disks being slidably connected to a plurality of circumferentially evenly distributed sliding blocks, and a clamping block being provided between two adjacent sliding blocks on different fixed disks.

[0005] Preferably, a first elastic element is provided between the sliding block and the adjacent fixed disk.

[0006] Preferably, starting with the first elastic element on the upper side, the elastic coefficient of all the first elastic elements increases sequentially along the circumferential direction.

[0007] Preferably, the upper clamping block is provided with a clamping band, the upper clamping block is equipped with a second motor, the output shaft of the second motor is fixedly connected to a gear, the clamping block is slidably connected with two centrally symmetrically distributed racks, both racks mesh with the adjacent gears, and the two ends of the clamping band are fixedly connected to the adjacent racks respectively.

[0008] Preferably, the clamping band is fixed with a flexible pad.

[0009] Preferably, the flexible pad has a rough surface on the side facing the adjacent clamping block.

[0010] Preferably, the upper clamping block is rotatably connected to the two adjacent sliding blocks, and the remaining clamping blocks are fixedly connected to the two adjacent sliding blocks. A third motor is installed on one of the upper sliding blocks, and the output shaft of the third motor is fixedly connected to the adjacent clamping block.

[0011] Preferably, the clamping block on the upper side is fixedly connected to a pressure block.

[0012] Preferably, the housing is equipped with a fourth motor, the output shaft of the fourth motor is fixedly connected to a threaded telescopic rod, the telescopic part of the threaded telescopic rod is fixedly connected to a push plate, the push plate slides on the two fixed discs, the two ends of the first elastic element near the push plate are respectively fixedly connected to the adjacent sliding block and the push plate, and the two ends of the remaining first elastic elements are respectively fixedly connected to the adjacent sliding block and the adjacent fixed disc, and the push plate is used to push the two adjacent first elastic elements.

[0013] Preferably, the fixed part of the threaded telescopic rod is fixedly connected to a rotating ring, the rotating ring is provided with a plurality of circumferentially spaced limiting blocks, the fixed plate is slidably connected to a pressing frame, the pressing frame is provided with a limiting pin, all the limiting blocks are used to press two of the limiting pins in sequence, and a second elastic element is fixedly connected between the two pressing frames.

[0014] This invention has the following advantages: The invention uses clamping blocks to limit the movement of the steel strip. When the steel strip is subjected to tension and breaks, causing the steel strip roll to tend to unravel, the steel strip roll compresses the clamping blocks, which buffer the force causing the steel strip roll to break open. Furthermore, during storage, the circumferentially distributed clamping blocks clamp the steel strip roll, reducing the probability of it breaking open and thus improving the safety of the device. During the winding process of the steel strip, the compression of all the first elastic elements varies along the rotation direction of the steel strip winding. The reduction in size causes the steel strip to gradually bend from the top along the rotation direction during winding towards the axis of rotation, reducing the probability of the steel strip breaking due to sudden bending during winding, thereby improving the safety of the steel strip during winding. The rough surface of the flexible pad presses the steel strip, reducing the probability of displacement of the outer end of the steel strip. Furthermore, the pressure block presses the area near the outer end of the steel strip towards the axis of rotation, causing the outer end of the steel strip to tilt away from the axis of rotation, reducing the probability of the outer end of the steel strip popping out, thereby ensuring the stability of the steel strip roll during storage. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional sectional view of the fixing disk of the present invention; Figure 3 This is a three-dimensional structural diagram of the pressure block of the present invention; Figure 4 This is a three-dimensional structural diagram of the clamping band of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of the threaded telescopic rod of the present invention; Figure 6 This is a three-dimensional structural diagram of the rotating ring and extrusion frame of the present invention.

[0016] The components in the attached diagram are labeled as follows: 1: Housing, 2: First motor, 3: Rotating shaft, 301-Steel strip coil, 4: Fixed disc, 5: Sliding block, 6: Clamping block, 7: First elastic element, 8: Clamping belt, 9: Second motor, 10: Gear, 11: Rack, 12: Flexible pad, 13: Third motor, 14: Pressure block, 15: Fourth motor, 16: Threaded telescopic rod, 17: Push plate, 18: Rotating ring, 1801: Limiting block, 19: Extrusion frame, 1901: Limiting pin, 20: Second elastic element. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below.

[0018] Example 1

[0019] If the steel bar breaks during the winding process of existing fastening tape raw material winding equipment due to factors such as insufficient strength or excessive tension, the wound portion of the steel bar will break apart. The broken steel bar will spread out in all directions, which can easily scratch and injure operators, affecting the safety of the fastening tape production process.

[0020] A production equipment for fastening straps of power battery modules, such as Figures 1-3 As shown, the device includes a first motor 2 mounted on a housing 1. The housing 1 is equipped with a control terminal. The first motor 2 is electrically connected to the control terminal. The output shaft of the first motor 2 is fixedly connected to a rotating shaft 3, which is rotatably connected to the housing 1. During the production of the fastening band, one end of the fastening band material (i.e., steel strip) is fixed to the rotating shaft 3 with screws. The output shaft of the first motor 2 drives the rotating shaft 3 to rotate. Figure 1The main view serves as the reference for the rotation direction. When the output shaft of the first motor 2 drives the rotating shaft 3 to rotate counterclockwise, the rotating shaft 3 winds the steel strip, causing the steel strip to gradually form a steel strip coil 301 wound around the rotating shaft 3. When the output shaft of the first motor 2 drives the rotating shaft 3 to rotate clockwise, the rotating shaft 3 releases the steel strip. The rotating shaft 3 is rotatably connected to two fixed disks 4 that are symmetrically distributed front and back and fixed to the outer casing 1. The fixed disks 4 are slidably connected to a number of sliding blocks 5 that are evenly distributed circumferentially. In the figure, the number of sliding blocks 5 on the same fixed disk 4 is four, and the number of adjacent sliding blocks 5 on different fixed disks 4 is... A clamping block 6 is provided between the two adjacent sliding blocks 5. In this embodiment, the clamping block 6 is fixedly connected to the two adjacent sliding blocks 5. The upper clamping block 6 presses the steel strip during the winding and unwinding process by its own weight. A first elastic element 7 is provided between the sliding block 5 and the adjacent fixed plate 4. The first elastic element is a compression spring. In this embodiment, the two ends of the first elastic element 7 are fixedly connected to the adjacent sliding block 5 and the adjacent fixed plate 4, respectively. Starting from the upper first elastic element 7, the elastic coefficient of all the first elastic elements 7 increases sequentially in the counterclockwise direction. The elastic coefficient of the upper first elastic element 7 is the smallest, and the elastic coefficient of the right first elastic element 7 is the largest.

[0021] The specific working principle is as follows: During the winding process of the fastening strip material (i.e., steel strip) using this device, the operator fixes one end of the steel strip to the rotating shaft 3 and positions the part of the steel strip near the rotating shaft 3 below the upper clamping block 6. Then, the operator starts the first motor 2 through the control terminal. The output shaft of the first motor 2 drives the rotating shaft 3 to rotate counterclockwise, and the rotating shaft 3 winds up the steel strip (during the winding process, the diameter of the steel strip roll 301 gradually increases, and the steel strip roll 301 squeezes the clamping block 6 to move, causing the clamping block 6 to move away from the axis of the rotating shaft 3. The clamping block 6 drives the sliding block 5 to move, and the first elastic element 7 is gradually compressed). When the steel strip is needed, the output shaft of the first motor 2 is driven to rotate the rotating shaft 3 clockwise through the control terminal, so that the steel strip is released (during the release process, the diameter of the steel strip roll 301 gradually decreases, the clamping block 6 moves towards the axis of the rotating shaft 3, the clamping block 6 drives the sliding block 5 to move, and the first elastic element 7 gradually rebounds).

[0022] During the winding and unwinding of the steel strip, the upper clamping block 6 is pressed against the steel strip by its own weight, while the clamping blocks 6 on the left, right, and lower sides block the steel strip. If the steel strip breaks under tension, the clamping blocks 6 limit the steel strip to reduce the probability of the wound steel strip roll 301 breaking open. When the steel strip breaks and the steel strip roll 301 tends to spread outwards, the steel strip roll 301 squeezes the clamping blocks 6 to move. The clamping blocks 6 drive the sliding blocks 5 to move, so that the first elastic element 7 is gradually compressed (during the winding and storage of the steel strip roll 301, all the first elastic elements 7 are in a compressed state, and the steel strip roll 301 is clamped by the circumferentially distributed clamping blocks 6 to reduce the probability of the steel strip roll 301 breaking open and improve the safety of the storage of the steel strip roll 301). This buffers the force of the steel strip roll 301 breaking open, thereby improving the safety of the device.

[0023] During the winding process of the steel strip, since the elastic coefficient of the upper first elastic element 7 is the smallest, and the elastic coefficients of all the first elastic elements 7 increase sequentially in the counterclockwise direction, the upper first elastic element 7 is compressed to the greatest extent, and the compression of all the first elastic elements 7 decreases sequentially in the counterclockwise direction. This causes the steel strip to gradually bend from the top in the counterclockwise direction towards the axis of rotation 3, reducing the probability of the steel strip breaking due to sudden bending during winding, thereby improving the safety of the steel strip during winding.

[0024] After the steel strip is wound up or unwound, the operator shuts down the first motor 2 via the control terminal.

[0025] Example 2

[0026] Based on Example 1, such as Figure 4 As shown, a clamping band 8 is provided inside the upper clamping block 6. A second motor 9, electrically connected to the control terminal, is installed on the upper clamping block 6. A gear 10 is fixedly connected to the output shaft of the second motor 9. Two centrally symmetrically distributed racks 11 are slidably connected to the clamping block 6. Both racks 11 mesh with the adjacent gears 10. The two ends of the clamping band 8 are fixedly connected to the adjacent racks 11 respectively. When it is necessary to wind up the steel strip, the steel strip is inserted between the clamping block 6 and the clamping band 8. After the steel strip is wound up, if it is necessary to fix the steel strip, the second motor 9 is turned on through the control terminal. The output shaft of machine 9 drives two racks 11 to move in opposite directions through gear 10, causing the two ends of clamping belt 8 to move. A flexible pad 12 is fixed to the clamping belt 8. The upper side of the flexible pad 12 is provided with a rough surface to increase the resistance generated by the flexible pad 12 to the movement of the steel strip. During the movement of the clamping belt 8, the flexible pad 12 is moved, so that the rough surface on the upper side of the flexible pad 12 presses the steel strip, reducing the probability of displacement of the outer end of the steel strip, thereby ensuring the stability of the steel strip roll 301. After the flexible pad 12 presses the steel strip, the operator shuts down the second motor 9 through the control terminal.

[0027] Example 3

[0028] Based on Example 2, such as Figures 3-5 As shown, in the above embodiment, the clamping block 6 is fixedly connected to two adjacent sliding blocks 5. In this embodiment, the upper clamping block 6 is rotatably connected to two adjacent sliding blocks 5, and the remaining clamping blocks 6 are fixedly connected to two adjacent sliding blocks 5. The upper rear sliding block 5 is equipped with a third motor 13 electrically connected to the control terminal. The output shaft of the third motor 13 is fixedly connected to the adjacent clamping block 6. When the steel strip is wound up and the flexible pad 12 presses the outer end of the steel strip, the operator starts the third motor 13 through the control terminal. The output shaft of the third motor 13... Used to drive the adjacent clamping block 6 to rotate, the upper clamping block 6 has a pressure block 14 fixedly connected to its left side. When the upper clamping block 6 rotates counterclockwise, the upper clamping block 6 drives the pressure block 14 to rotate. The pressure block 14 presses the outer end of the steel strip coil, causing the pressure block 14 to press the area near the outer end of the steel strip towards the axis of the rotating shaft 3. The outer end of the steel strip tilts away from the axis of the rotating shaft 3, reducing the probability of the outer end of the steel strip popping out, thereby ensuring the stability of the steel strip coil 301 during storage. Finally, the third motor 13 is turned off through the control terminal.

[0029] Example 4

[0030] Based on Example 3, such as Figure 1 , Figure 5 and Figure 6 As shown, the outer casing 1 is equipped with a fourth motor 15 electrically connected to the control terminal. A threaded telescopic rod 16 is fixedly connected to the output shaft of the fourth motor 15. A push plate 17 is fixedly connected to the telescopic part of the threaded telescopic rod 16. Figure 1 The right view is the reference for the direction of rotation. When the fixed part of the threaded telescopic rod 16 rotates clockwise, the telescopic part of the threaded telescopic rod 16 extends to the left. When the fixed part of the threaded telescopic rod 16 rotates counterclockwise, the telescopic part of the threaded telescopic rod 16 retracts to the right. The push plate 17 slides on the two fixed disks 4. In the above embodiment, the two ends of the first elastic member 7 are respectively fixed to the adjacent sliding block 5 and the adjacent fixed disk 4. In this embodiment, the two ends of the right first elastic member 7 are respectively fixed to the adjacent sliding block 5 and the push plate 17, and the two ends of the other first elastic members 7 are respectively fixed to the adjacent sliding block 5 and the adjacent fixed disk 4. The push plate 17 is used to push the two adjacent first elastic members 7 so that the two adjacent first elastic members 7 are compressed.

[0031] like Figure 5 and Figure 6As shown, a rotating ring 18 is fixedly connected to the fixed part of the threaded telescopic rod 16. The rotating ring 18 is provided with a plurality of circumferentially spaced limiting blocks 1801. When the fixed part of the threaded telescopic rod 16 rotates, the fixed part of the threaded telescopic rod 16 drives the rotating ring 18 to rotate, so that all the limiting blocks 1801 rotate. A pressing frame 19 is slidably connected to the fixed disk 4. The pressing frame 19 is provided with limiting pins 1901. During the rotation of all the limiting blocks 1801, all the limiting blocks 1801 sequentially press against two limiting pins 1901, so that... Two limit pins 1901 move in opposite directions, and two extrusion frames 19 move in opposite directions. A second elastic element 20, which is a tension spring, is fixed between the two extrusion frames 19. During the movement of the two extrusion frames 19 in opposite directions, the second elastic element 20 is stretched. When the limit block 1801 rotates until it loses contact with the adjacent limit pin 1901, the second elastic element 20 rebounds, and the two limit pins 1901 move in opposite directions, causing the two extrusion frames 19 to move in opposite directions. The two extrusion frames 19 clamp the steel strip coil during the winding process.

[0032] The specific working principle is as follows: During the coiling process of the steel bar, the operator activates the fourth motor 15 via the control terminal, causing the output shaft of the fourth motor 15 to rotate clockwise, which in turn causes the extension part of the threaded telescopic rod 16 to extend to its limit to the left. The extension part of the threaded telescopic rod 16 then moves the push plate 17 to the left, compressing the two first elastic elements 7 on the right side and increasing the resistance to the right movement of the two sliding blocks 5 on the right side. This, in turn, increases the resistance to the right movement of the clamping block 6 on the right side. As the diameter of the coiled steel bar increases, the two sliding blocks 5 and the clamping block 6 on the right side can no longer move to the right, and the two first elastic elements 7 on the right side are compressed to their limit. At this point, the operator controls the output shaft of the fourth motor 15 to reverse via the control terminal. The output shaft of the fourth motor 15 rotates the fixed part of the threaded telescopic rod 16 counterclockwise, causing the extension part of the threaded telescopic rod 16 to retract to the right. The extension part of the threaded telescopic rod 16 then moves the push plate 17 to the right.

[0033] As the push plate 17 moves to the right, the rotating shaft 3 gradually winds up the steel strip, and the right ends of the two first elastic elements 7 on the right side gradually move to the right, so that the first elastic elements 7 always remain taut, increasing the resistance of the two sliding blocks 5 and the clamping block 6 on the right side to move to the right, thereby increasing the stability of the steel strip coil after winding.

[0034] During the rotation of the fixed part of the threaded telescopic rod 16, the fixed part of the threaded telescopic rod 16 drives the rotating ring 18 to rotate, and the rotating ring 18 drives all the limiting blocks 1801 on it to rotate. All the limiting blocks 1801 sequentially press the two limiting pins 1901. When the limiting block 1801 presses the adjacent limiting pin 1901, the two limiting pins 1901 move in opposite directions, and the second elastic element 20 is stretched. When the limiting block 1801 rotates until it loses contact with the adjacent limiting pin 1901, the second elastic element 20 rebounds, and the two limiting pins 1901 move in opposite directions. The above steps are repeated, and with the rotation of the rotating ring 18, the two limiting pins 1901 move back and forth in opposite directions.

[0035] During the reciprocating opposite movement of the two limit pins 1901, the two extrusion frames 19 reciprocate opposite to each other. The two extrusion frames 19 intermittently clamp the steel coil during the winding process to reduce the probability of misalignment during the winding process and improve the stability of the steel coil winding.

[0036] After the steel strip is wound up, the operator shuts off the fourth motor 15 via the control terminal and shuts down the device through the above steps.

[0037] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A production equipment for fastening straps of power battery modules, comprising a first motor (2) mounted on a housing (1), wherein the output shaft of the first motor (2) is fixedly connected to a rotating shaft (3) rotatably connected to the housing (1), characterized in that, The rotating shaft (3) is rotatably connected to two fixed disks (4) that are symmetrically distributed and fixed to the outer shell (1). The fixed disks (4) are slidably connected to a number of sliding blocks (5) that are evenly distributed in the circumference. A clamping block (6) is provided between two adjacent sliding blocks (5) on different fixed disks (4). A first elastic element (7) is provided between the sliding block (5) and the adjacent fixed disk (4); the two ends of the first elastic element (7) are respectively fixed to the adjacent sliding block (5) and the adjacent fixed disk (4); starting from the upper first elastic element (7), the elastic coefficient of all the first elastic elements (7) increases sequentially along the circumferential direction.

2. The production equipment for a power battery module fastening strap according to claim 1, characterized in that the upper side... The clamping block (6) is provided with a clamping band (8). A second motor (9) is installed on the upper side of the clamping block (6). A gear (10) is fixedly connected to the output shaft of the second motor (9). Two racks (11) are slidably connected to the clamping block (6). Both racks (11) mesh with the adjacent gears (10). The two ends of the clamping band (8) are fixedly connected to the adjacent racks (11).

3. The production equipment for a power battery module fastening strap according to claim 2, characterized in that, The clamping band (8) is fixed with a flexible pad (12).

4. The production equipment for a power battery module fastening strap according to claim 3, characterized in that, The flexible pad (12) has a rough surface on the side facing the adjacent clamping block (6).

5. A production equipment for a power battery module fastening strap according to claim 4, characterized in that the upper side... The clamping block (6) is rotatably connected to the two adjacent sliding blocks (5), and the remaining clamping blocks (6) are fixedly connected to the two adjacent sliding blocks (5). A third motor (13) is installed on one of the upper sliding blocks (5), and the output shaft of the third motor (13) is fixedly connected to the adjacent clamping block (6).

6. The production equipment for a power battery module fastening strap according to claim 5, characterized in that, The clamping block (6) on the upper side is fixedly connected to the pressure block (14).

7. The production equipment for a power battery module fastening strap according to claim 1, characterized in that, The outer casing (1) is equipped with a fourth motor (15), the output shaft of the fourth motor (15) is fixedly connected to a threaded telescopic rod (16), the telescopic part of the threaded telescopic rod (16) is fixedly connected to a push plate (17), the push plate (17) slides on the two fixed disks (4), the two ends of the first elastic element (7) near the push plate (17) are fixedly connected to the adjacent sliding block (5) and the push plate (17) respectively, the two ends of the remaining first elastic elements (7) are fixedly connected to the adjacent sliding block (5) and the adjacent fixed disk (4) respectively, and the push plate (17) is used to push the two adjacent first elastic elements (7).

8. The production equipment for a power battery module fastening strap according to claim 7, characterized in that, The fixed part of the threaded telescopic rod (16) is fixedly connected to a rotating ring (18), the rotating ring (18) is provided with a plurality of circumferentially spaced limiting blocks (1801), the fixed disk (4) is slidably connected to a pressing frame (19), the pressing frame (19) is provided with a limiting pin (1901), all the limiting blocks (1801) are used to press the two limiting pins (1901) in sequence, and a second elastic element (20) is fixedly connected between the two pressing frames (19).

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