Lithium battery cap pressure welding device

Abstract

The utility model provides a lithium battery cap pressure welding device which comprises a workbench, moving blocks are connected to the left side and the right side of the bottom in the workbench in a sliding mode, a driving wheel is fixedly connected to the upper portion of the rear end of the workbench, and a fixed block is movably connected to the interior of the workbench. According to the pressure welding device for the lithium battery cap, by arranging a moving groove, a moving block, a first clamping plate, a driving wheel, a driven wheel, a sliding groove, a sliding block, a fixed block, a second clamping plate and other structures, the moving block achieves transverse movement of the first clamping plate through transmission of a first double-thread screw, clamping of a lithium battery is completed, and the driving wheel and the driven wheel transmit power stably through a transmission belt; a sliding groove, a sliding block and a fixing block are combined and matched with a second double-thread screw, a second clamping plate can clamp the middle of the lithium battery, the first clamping plate and the second clamping plate are in arc design and provided with an anti-skid pad, the appearance of the lithium battery is attached, friction force is enhanced, and the battery is prevented from being damaged and sliding.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery cap pressure welding technology, and more specifically, to a lithium battery cap pressure welding device. Background Technology

[0002] Pressure welding of lithium battery caps refers to the process of connecting the positive and negative electrode caps of the battery to the battery casing during the assembly of lithium batteries. Pressure welding is a commonly used connection technology that can ensure good electrical contact and mechanical connection between the positive and negative electrodes of the battery and the battery casing.

[0003] However, the existing cap welding device has the following problems when in use:

[0004] After the welding process at one end of the lithium battery is completed, the battery often needs to be manually flipped before the welding operation can be carried out on the other end. This manual intervention severely restricts production efficiency. The speed of manual flipping is far slower than that of automated processes. In large-scale production scenarios, a significant amount of time is spent on battery flipping, resulting in limited overall production capacity. Moreover, manual flipping makes it difficult to ensure the consistency of the flipping angle and force each time, which can easily cause deviations in the battery's position during secondary fixing. This makes it difficult to control the positional accuracy of subsequent welding, seriously affecting the stability and uniformity of product quality. In addition, frequent manual handling and flipping of batteries poses certain safety risks, especially when the battery is charged or in a semi-processed state. Even slight carelessness could lead to electric shock and other safety accidents, threatening the personal safety of operators.

[0005] This invention can securely clamp lithium batteries, flexibly adjust their position, ensure that the batteries do not shift during pressure welding, improve the quality of pressure welding, and greatly increase production efficiency. Utility Model Content

[0006] The present invention aims to solve the technical problems mentioned in the background art and provide a lithium battery cap pressure welding device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery cap pressure welding device, comprising: a workbench, with movable blocks slidably connected to the left and right sides of the bottom of the workbench, a drive wheel fixedly connected to the upper rear end of the workbench, a fixed block movably connected inside the workbench, a movable groove opened in the bottom of the workbench, a double-ended screw rotatably connected to the movable groove, the double-ended screw rotatably connected to the movable block, a clamping plate fixedly installed on the inner side of the movable block, a motor rotatably installed on the upper end of the workbench, the output end of the motor rotatably connected to the drive wheel, a driven wheel rotatably installed below the drive wheel, a transmission belt provided between the drive wheel and the driven wheel, a connecting rod fixedly installed on the front of the driven wheel, a fixing plate fixedly installed on the front of the connecting rod, fixed blocks slidably connected to the left and right sides of the front of the fixing plate, a clamping plate rotatably installed on the inner side of the fixing block, both the clamping plate rotatably set, and anti-slip pads provided on the output surfaces.

[0008] A further preferred embodiment: a motor is fixedly installed on the left end of the workbench, the output end of the motor is fixedly connected to a double-headed screw, and a placement plate is fixedly installed above the middle of the moving slot.

[0009] A further preferred embodiment: an electric telescopic rod is fixedly installed at the middle of the upper part of the workbench, and a pressure plate is fixedly installed at the output end of the electric telescopic rod, with the pressure plate located directly above the placement plate.

[0010] A further preferred embodiment: A connecting block is fixedly installed on the upper end of each movable block, a connecting plate is fixedly installed on the opposite side of each connecting block, the opposite side of each connecting plate is fixedly connected to a clamping plate, and a screw hole is opened at the outer end of each movable block, the screw hole being threadedly connected to a double-ended screw rod.

[0011] A further preferred embodiment: a motor three is fixedly installed on the left end of the fixing plate, a sliding groove is opened on the front of the fixing plate, a double-headed screw two is rotatably connected in the sliding groove, and the double-headed screw two is threadedly connected to the fixing block.

[0012] A further preferred embodiment: each of the fixed blocks has a slider fixedly installed at its rear end, the slider is slidably connected to the slide groove, and each slider has a screw hole II at its outer end, the screw hole II being threadedly connected to a double-ended screw II.

[0013] A further preferred embodiment: each of the fixed blocks has a connecting block two fixedly installed on its front side, each of the connecting blocks two has a connecting plate two fixedly installed on its inner side, and each of the connecting plates two has a clamping plate two fixedly installed on its inner side.

[0014] Beneficial effects:

[0015] 1. By setting up an active wheel, a driven wheel, and a connecting rod, the active wheel is driven to rotate by a motor, and the driven wheel rotates accordingly. This allows for precise control of speed and torque, ensuring the stability of the device's operation and preventing damage to the lithium battery due to unstable power transmission. Secondly, the connecting rod is fixed to the front of the driven wheel. When the driven wheel rotates, the connecting rod makes a circular motion, which in turn drives the fixed plate connected to it to move. This ingenious design allows the fixed plate to be flexibly flipped. After pressure welding is completed on one end of the lithium battery, the lithium battery can be easily flipped 180 degrees to perform pressure welding on the other end. This greatly improves work efficiency, reduces the tediousness and error probability of manual operation, enhances the practicality and functionality of the entire lithium battery cap pressure welding device, and improves the degree of automation in production.

[0016] 2. By setting up clamping plates one and two, clamping plate one achieves lateral movement and clamping of the lithium battery through the threaded engagement of the moving block and the double-ended screw one, while clamping plate two completes the middle clamping action through the threaded connection of the fixed block and the double-ended screw two, ensuring that the lithium battery will not shift during pressure welding and guaranteeing the accuracy of the pressure welding operation. Both clamping plates one and two are arc-shaped, and the output surface is equipped with anti-slip pads. The arc design fits the cylindrical shape of the lithium battery, increasing the contact area and making the clamping force evenly distributed, avoiding local damage to the battery shell. The anti-slip pads further enhance the friction, effectively preventing the lithium battery from sliding due to pressure or vibration during pressure welding, greatly improving the stability and reliability of the entire device, ensuring the smooth progress of pressure welding, and improving the quality and efficiency of lithium battery cap pressure welding.

[0017] 3. In summary, this lithium battery cap pressure welding device, through the arrangement of a moving groove, a moving block, a clamping plate one, a driving wheel, a driven wheel, a sliding groove, a slider, a fixed block, and a clamping plate two, achieves lateral movement of the clamping plate one by means of the moving groove and the moving block, driven by the double-headed screw one, thus completing the lateral clamping of the lithium battery. The driving wheel and the driven wheel smoothly transmit power through the transmission belt, driving the connecting rod and the fixed plate to move, providing power support for the flipping of the lithium battery. The combination of the sliding groove, the slider, and the fixed block, in conjunction with the double-headed screw two, enables the clamping plate two to achieve central clamping of the lithium battery. The arc design and anti-slip pad configuration of the clamping plates one and two conform to the shape of the lithium battery and enhance friction, preventing battery damage and slippage. These structures work together to comprehensively ensure the accuracy, efficiency, and stability of the lithium battery cap pressure welding operation, from battery fixing and position adjustment to pressure welding, greatly improving product quality and production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal bottom structure of the workbench of this utility model.

[0020] Figure 3 This is a schematic diagram of the fixing plate structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the fixing block structure of this utility model.

[0022] Figure 1-4 In the middle: 1. Workbench; 101. Moving groove; 102. Motor 1; 103. Double-ended screw 1; 104. Placement plate; 105. Electric telescopic rod; 106. Pressure plate; 107. Motor 2; 2. Moving block; 201. Connecting block 1; 202. Connecting plate 1; 203. Clamping plate 1; 204. Screw hole 1; 3. Driving wheel; 301. Driven wheel; 302. Connecting rod; 303. Fixing plate; 304. Motor 3; 305. Slide groove; 306. Double-ended screw 2; 4. Fixing block; 401. Slider; 402. Screw hole 2; 403. Connecting block 2; 404. Connecting plate 2; 405. Clamping plate 2. Detailed Implementation

[0023] The following will refer to the appendix in the embodiments of this utility model. Figures 1-4 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0024] Please see Figure 1-4In this embodiment of the utility model, a lithium battery cap pressure welding device includes: a workbench 1, with movable blocks 2 slidably connected to the left and right sides of the bottom of the workbench 1; a drive wheel 3 fixedly connected to the upper rear end of the workbench 1; a fixed block 4 movably connected inside the workbench 1; a movable groove 101 opened at the bottom of the workbench 1; a double-ended screw 103 rotatably connected to the movable block 2 within the movable groove 101; clamping plates 203 fixedly installed on the inner sides of the movable block 2; a motor 107 fixedly installed at the upper end of the workbench 1; the output end of the motor 107 fixedly connected to the drive wheel 3; a driven wheel 301 rotatably installed below the drive wheel 3; a transmission belt provided between the drive wheel 3 and the driven wheel 301; and the driven wheel 301... A connecting rod 302 is fixedly installed on the front. A fixing plate 303 is fixedly installed on the front of the connecting rod 302. Fixing blocks 4 are slidably connected to the left and right sides of the front of the fixing plate 303. Clamping plates 405 are fixedly installed on the inner sides of the fixing blocks 4. Both clamping plates 203 and clamping plates 405 are arc-shaped and have anti-slip pads on their output surfaces. A motor 102 is fixedly installed on the left end of the worktable 1. The output end of the motor 102 is fixedly connected to the double-headed screw 103. A placement plate 104 is fixedly installed above the middle of the moving slot 101. An electric telescopic rod 105 is fixedly installed in the middle of the upper end of the worktable 1. A pressure plate 106 is fixedly installed on the output end of the electric telescopic rod 105. The pressure plate 106 is located directly above the placement plate 104. The lithium battery that needs to be capped and welded is placed on the... On the placement plate 104, start motor 102. Motor 102 drives double-ended screw 103 to rotate. Since the moving block 2 is threadedly connected to the double-ended screw 103, and the threads of the double-ended screw 103 are in opposite directions, as the double-ended screw 103 rotates, the two moving blocks 2 will move towards or away from each other in the moving groove 101. When the two moving blocks 2 move towards each other, the clamping plate 203 installed on the inner side of the moving block 2 will also move closer, ultimately clamping the lithium battery in the lateral direction. The anti-slip pad on the clamping plate 203 can increase friction and prevent the lithium battery from sliding. Since the fixing block 4 is slidably connected to the left and right sides of the front of the fixing plate 303, the fixing block 4 will slide on the fixing plate 303, so that the fixing block 4 installed on the inner side of the fixing plate 303 will move towards each other. The clamping plates 405 move towards each other, clamping the middle of the lithium battery for a secondary clamping. The anti-slip pads on clamping plates 405 also prevent the lithium battery from sliding. After the lithium battery is firmly fixed by clamping plates 203 and 405, the electric telescopic rod 105 is activated. The output end of the electric telescopic rod 105 extends, driving the pressure plate 106 downward. The pressure plate 106 applies pressure to the lithium battery cap placed on the placement plate 104, completing the cap welding operation with the help of external welding equipment. When it is necessary to weld the cap on the other end of the lithium battery, the pressure plate 106 is released from the lithium battery, and then the motor 102 is reversed, causing the two moving blocks 2 to move in opposite directions. Clamping plate 203 releases the lithium battery, and the motor 107 is activated.Motor 2 107 drives the drive wheel 3 to rotate. Through the transmission belt, the drive wheel 3 transmits power to the driven wheel 301, causing the driven wheel 301 to also rotate. When the driven wheel 301 rotates, the connecting rod 302 fixed to its front side will perform a circular motion, thereby driving the fixed plate 303 to move. When the fixed plate 303 rotates, it will drive the fixed block 4 and the clamping plate 2 405 to flip. After flipping 180 degrees, the drive of motor 2 107 is stopped, and then the two fixed blocks 4 are slightly loosened from clamping the lithium battery, allowing the lithium battery to... The battery slowly slides down between clamping plates 405 until it lands on the placement plate 104. The lithium battery is then re-clamped, and a cap is welded onto it. After the pressure welding is complete, the electric telescopic rod 105 retracts, causing the pressure plate 106 to rise back to its initial position. Motor 102 reverses, causing the two moving blocks 2 to move in opposite directions. Clamping plate 203 releases the lithium battery, and the fixing blocks 4 move in opposite directions, causing clamping plate 405 to release the lithium battery. At this point, the pressure-welded lithium battery can be removed from the placement plate 104.

[0025] In this embodiment of the invention, a connecting block 201 is fixedly installed on the upper end of each movable block 2, and a connecting plate 202 is fixedly installed on the opposite surface of each connecting block 201. The opposite surfaces of the connecting plates 202 are fixedly connected to the clamping plate 203. A screw hole 204 is provided at the outer end of the movable block 2, and the screw hole 204 is threadedly connected to the double-ended screw 103. When the motor 102 is started, the motor 102 drives the double-ended screw 103 to rotate. Since the screw hole 204 at the outer end of the movable block 2 is threadedly connected to the double-ended screw 103, and the threads of the double-ended screw 103 are in opposite directions (left and right),... Therefore, as the double-headed screw 103 rotates, the two moving blocks 2 will move towards or away from each other in the moving groove 101. When the moving blocks 2 move, the connecting block 201 fixed at its upper end will move synchronously with the moving blocks 2. The connecting plate 202 fixed on the opposite side of the connecting block 201 will also move accordingly. The clamping plate 203 fixed on the opposite side of the connecting plate 202 will move closer or further away. When the two moving blocks 2 move towards each other, the clamping plate 203 will move closer and finally clamp the lithium battery in the lateral direction. The anti-slip pad on the clamping plate 203 can increase friction and prevent the lithium battery from sliding.

[0026] In this embodiment of the utility model, a motor 304 is fixedly installed on the left end of the fixing plate 303. A sliding groove 305 is opened on the front of the fixing plate 303, and a double-ended screw 306 is rotatably connected in the sliding groove 305. The double-ended screw 306 is threadedly connected to the fixing block 4. A slider 401 is fixedly installed on the rear end of the fixing block 4. The slider 401 is slidably connected to the sliding groove 305. A screw hole 402 is opened on the outer end of the slider 401, and the screw hole 402 is threadedly connected to the double-ended screw 306. A connecting block 403 is fixedly installed on the front of the fixing block 4. The inner side of the connecting block 403 is fixed. A connecting plate 404 is installed, and clamping plates 405 are fixedly installed on the inner side of the connecting plate 404. The starting motor 304 drives the double-headed screw 306 to rotate in the slide groove 305. Since the slider 401 at the rear end of the fixed block 4 is slidably connected to the slide groove 305, and the screw hole 402 at the outer end of the slider 401 is threadedly connected to the double-headed screw 306, the two fixed blocks 4 will move towards each other in the slide groove 305 of the fixed plate 303. The fixed blocks 4 drive the clamping plates 405 to move closer through the connecting block 403 and the connecting plate 404, clamping the lithium battery. The anti-slip pad prevents the battery from sliding.

[0027] Working principle: The lithium battery to be capped and welded is placed on the placement plate 104 of the workbench 1. The motor 102 is started, and the output end of the motor 102 drives the double-ended screw 103 to rotate. Since the screw hole 204 at the outer end of the moving block 2 is threadedly connected to the double-ended screw 103, and the double-ended screw 103 rotates in opposite directions, the two moving blocks 2 move towards each other in the moving groove 101. When the moving blocks 2 move, the connecting block 201 fixed at its upper end moves synchronously, and the connecting plate 202 fixed on the opposite side of the connecting block 201 moves accordingly, thereby driving the clamping plate 203 fixed on the opposite side of the connecting plate 202 to move closer. Finally, the clamping plate 203 clamps the lithium battery in the lateral direction. The anti-slip pad on the output surface of the clamping plate 203 increases the friction and prevents slippage. When the lithium battery slides, motor 304 is activated. Motor 304 drives double-headed screw 306 to rotate within the groove 305 on the front of the fixed plate 303. Since the slider 401 at the rear of the fixed block 4 is slidably connected to the groove 305, and the screw hole 402 at the outer end of the slider 401 is threadedly connected to the double-headed screw 306, the two fixed blocks 4 move towards each other within the groove 305 of the fixed plate 303. The fixed blocks 4, through the connecting block 403 fixed on the front and the connecting plate 404 fixed on the inner side of the connecting block 403, drive the clamping plate 405 fixed on the inner side of the connecting plate 404 to move closer. The clamping plate 405 clamps the middle of the lithium battery. The anti-slip pad on the output surface of the clamping plate 405 prevents the lithium battery from sliding, completing the secondary clamping of the lithium battery. When the lithium battery is clamped by the clamping plate... After clamp 203 and clamp 405 are securely fixed, start the electric telescopic rod 105. The output end of the electric telescopic rod 105 extends, driving the pressure plate 106 to move downward. The pressure plate 106 applies pressure to the lithium battery cap placed on the placement plate 104, completing the cap welding operation at one end with the help of external welding equipment. When the other end of the lithium battery also needs to be welded, the pressure plate 106 releases the pressure on the lithium battery, the motor 102 reverses, the two moving blocks 2 move in opposite directions, clamp 203 releases the lithium battery, and the motor 207 is started. The motor 207 drives the drive wheel 3 to rotate. Through the transmission belt, the drive wheel 3 transmits power to the driven wheel 301, and the driven wheel 301 begins to rotate. When the driven wheel 301 rotates, the connecting rod 302 fixed on its front side performs a circular motion. The motor drives the fixed plate 303 to move, and the rotation of the fixed plate 303 causes the fixed block 4 and the clamping plate 405 to flip. After flipping 180 degrees, the drive of the second motor 107 is stopped, and the third motor 304 is started to reverse, so that the two fixed blocks 4 slightly loosen their clamping of the lithium battery. The lithium battery slowly slides down between the clamping plates 405 until it slides onto the placement plate 104. The first motor 102 is started again, so that the clamping plate 203 clamps the lithium battery in the lateral position again. The third motor 304 is started, so that the clamping plate 405 clamps the lithium battery again. The electric telescopic rod 105 is started, and the pressure plate 106 moves downward again to apply pressure to the cap at the other end of the lithium battery. With the help of external welding equipment, the cap at the other end is pressure welded. After the pressure welding is completed, the electric telescopic rod 105 retracts.The pressure plate 106 rises back to its initial position, motor 102 reverses, the two moving blocks 2 move in opposite directions, clamping plate 203 releases the lithium battery, motor 304 reverses, the two fixed blocks 4 move in opposite directions, clamping plate 405 releases the lithium battery, and the welded lithium battery is removed from the placement plate 104.

Claims

1. A lithium battery cap crimping device, comprising: The workbench (1), the workbench (1) inside bottom left and right sides are slidably connected with the moving block (2), the workbench (1) rear end upper side is fixedly connected with the driving wheel (3), the workbench (1) inside is movably connected with the fixed block (4), characterized by: the workbench (1) inside bottom is provided with the moving groove (101), the moving groove (101) is rotatably connected with the double head screw rod one (103), the double head screw rod one (103) is threadedly connected with the moving block (2), the moving block (2) inner side is fixedly installed with the clamping plate one (203), the workbench (1) upper end is fixedly installed with motor two (107), the motor two (107) output is fixedly connected with the driving wheel (3), the driving wheel (3) lower side is rotatably installed with the driven wheel (301), the driving wheel (3) and the driven wheel (301) are provided with transmission belt, the driven wheel (301) front side is fixedly installed with the connecting rod (302), the connecting rod (302) front side is fixedly installed with the fixed plate (303), the fixed plate (303) front side left and right sides are slidably connected with the fixed block (4), the fixed block (4) inner side is fixedly installed with the clamping plate two (405), the clamping plate one (203) and the clamping plate two (405) are arc-shaped, and the output surface is provided with the antiskid pad.

2. The lithium battery cap crimping device of claim 1, wherein: The workbench (1) left end is fixedly installed with motor one (102), the motor one (102) output is fixedly connected with the double head screw rod one (103), the moving groove (101) middle upper side is fixedly installed with the placing plate (104).

3. A lithium battery cap crimping device according to claim 2, characterized in that: The workbench (1) upper end middle part is fixedly installed with the electric telescopic rod (105), the electric telescopic rod (105) output is fixedly installed with the pressing plate (106), the pressing plate (106) is located above the placing plate (104).

4. The lithium battery cap crimping device of claim 1, wherein: The moving block (2) upper end is fixedly installed with the connecting block one (201), the connecting block one (201) opposite side is fixedly installed with the connecting plate one (202), the connecting plate one (202) opposite side is fixedly connected with the clamping plate one (203), the moving block (2) outer end is provided with the screw hole one (204), the screw hole one (204) is threadedly connected with the double head screw rod one (103).

5. The lithium battery cap crimping device of claim 1, wherein: The fixed plate (303) left end is fixedly installed with motor three (304), the fixed plate (303) front side is provided with the sliding slot (305), the sliding slot (305) is rotatably connected with the double head screw rod two (306), the double head screw rod two (306) is threadedly connected with the fixed block (4).

6. A lithium battery cap crimping device according to claim 5, wherein: The fixed block (4) rear end is fixedly installed with the sliding block (401), the sliding block (401) is slidably connected with the sliding slot (305), the sliding block (401) outer end is provided with the screw hole two (402), the screw hole two (402) is threadedly connected with the double head screw rod two (306).

7. A lithium battery cap crimping device according to claim 6, characterized in that: The front surface of the fixed block (4) is fixedly installed with a connecting block two (403), the inner side surface of the connecting block two (403) is fixedly installed with a connecting plate two (404), and the inner side surface of the connecting plate two (404) is fixedly installed with a clamping plate two (405).

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