Tinning device for exposed ends of positive electrode and negative electrode of lithium battery tab

Abstract

The invention provides a lithium battery tab positive and negative electrode exposed end tin plating device, and belongs to the technical field of lithium battery tab machining, the lithium battery tab positive and negative electrode exposed end tin plating device comprises a base, a vertical plate is arranged on the rear side of the base, a reciprocating rotating assembly is arranged at the upper end of the rear side of the vertical plate, the reciprocating rotating assembly comprises an L-shaped mounting plate, and the L-shaped mounting plate is arranged on the rear side wall of the vertical plate; a second rotating shaft is rotationally mounted in the upper end of the L-shaped mounting plate, a first conical driven wheel is arranged at the rear end of the second rotating shaft, a first connecting rod and a first chain wheel are arranged on the circumferential surface of the front end of the second rotating shaft, and a hinged shaft is rotationally mounted in the upper end of the first connecting rod. According to the tin plating machine, the reciprocating rotating assembly and the lifting assembly are arranged, so that a workpiece can be driven to vertically reciprocate, and then the workpiece is sequentially immersed into an activating solution, a cleaning solution, an electroplating solution and a sealing agent, so that automatic tin plating work is realized, the production efficiency is high, the surface of a tab is plated with tin, and the subsequent use cost is also reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of lithium battery tab processing, and in particular relates to a device for tinning the exposed ends of the positive and negative electrodes of a lithium battery tab. Background Art

[0002] During the production of lithium batteries, the positive and negative tabs of the battery need to be welded to the shell cover. Usually, laser welding technology is used to set the positive and negative poles of the tabs on both sides of one end of the battery, one side is the positive pole and the other side is the negative pole. The positive pole is then welded to the positive pole point of the closed cover, and the negative pole is welded to the negative pole point of the closed cover. However, during the welding process, the copper busbar welding points are easily oxidized, and defects such as poor welding, cold welding, and desoldering are prone to occur. These defects will seriously affect the performance and safety of the battery, resulting in low production efficiency and increased production costs.

[0003] Therefore, we propose a tinning device for the exposed ends of the positive and negative poles of lithium battery tabs to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the copper busbar welding points are easily oxidized during the welding process, which is prone to defects such as poor welding, cold welding, and desoldering. These defects will seriously affect the performance and safety of the battery, resulting in low production efficiency and increased production costs. A tinning device for the exposed ends of the positive and negative poles of the lithium battery tabs is proposed.

[0005] The object of the present invention can be achieved by the following technical solutions: it comprises a base, a vertical plate is provided on the rear side of the base, a reciprocating rotating assembly is provided on the rear upper end of the vertical plate, the reciprocating rotating assembly comprises an L-shaped mounting plate, and the L-shaped mounting plate is provided on the rear side wall of the vertical plate, a rotating shaft 2 is rotatably installed inside the upper end of the L-shaped mounting plate, a conical driven wheel 1 is provided on the rear end of the rotating shaft 2, a connecting rod 1 and a sprocket 1 are provided on the circumferential surface of the front end of the rotating shaft 2, a hinge shaft is rotatably installed on the upper end of the connecting rod 1, a sprocket 2 is provided on the circumferential surface of the rear end of the rotating shaft 2, the sprocket 1 and the sprocket 2 are connected by a tooth chain transmission, a connecting rod 2 is provided on the circumferential surface of the front end of the rotating shaft 2, and a lifting assembly is provided in front of the connecting rod 2;

[0006] The lifting assembly includes a fixed horizontal plate, and the fixed horizontal plate is arranged on the upper part of the front face of the vertical plate. A slide is slidably installed inside the front end of the fixed horizontal plate, a connecting shaft is provided on the rear wall of the slide, and the rear end of the connecting shaft is arranged inside the lower end of the second connecting rod. A quadrilateral slide groove is provided on the front face of the slide, and a pin shaft is slidably installed inside the quadrilateral slide groove. The front end of the pin shaft is connected to a connecting block through a spring, and a mounting vertical rod is provided at the lower end of the connecting block, and a clamping claw is provided at the lower end of the mounting vertical rod.

[0007] As a preferred embodiment of the present invention, a transverse moving groove is provided inside the vertical plate and the fixed horizontal plate, a slider is provided on the rear side wall of the fixed horizontal plate, the slider is slidably installed inside the transverse moving groove of the fixed horizontal plate, and the connecting shaft is provided inside the transverse moving groove of the vertical plate.

[0008] As a preferred embodiment of the present invention, a tin plating process component is provided below the clamp, and the tin plating process component includes a turntable, and the lower surface of the turntable is mounted on the upper surface of the base through roller rotation, and the upper surface of the turntable is provided with an activation tank, a cleaning tank, an electroplating tank, a water washing tank and a sealing tank in sequence from back to front.

[0009] As a preferred embodiment of the present invention, the activation tank, cleaning tank and sealing tank are all arranged above the turntable through a clamping and swinging assembly, the clamping and swinging assembly includes a hollow fixed block, and the hollow fixed block is arranged on the upper surface of the turntable, and a rotating rod is movably installed inside the hollow fixed block, one end of the rotating rod passes through the hollow fixed block and is fixedly connected to an arc-shaped splint, and a driven spur gear three is provided on the circumferential surface of the other end of the rotating rod, and a screw is rotatably installed inside the rotating rod, and the other end of the screw is threadedly connected to the hollow fixed block.

[0010] As a preferred embodiment of the present invention, a reciprocating moving component is arranged above the hollow fixed block, and the reciprocating moving component includes a rotating shaft three and a lifting plate. The rotating shaft three is rotatably installed inside the vertical plate, and the lifting plate is installed inside the lower end of the mounting vertical rod through a spring. The rear end of the rotating shaft three is provided with a conical driven wheel two, the front end of the rotating shaft three is provided with an eccentric wheel, the rear end of the lifting plate is provided with an L-shaped lifting block, and the L-shaped lifting block is arranged directly above the eccentric wheel, and tooth plates are provided on both sides of the lower end of the lifting plate, and the tooth plates are provided directly above the driven spur gear three.

[0011] As a preferred embodiment of the present invention, a movable groove is provided inside the lower end of the mounting vertical rod, the lifting plate and the spring connected thereto are arranged inside the movable groove, and a water spray pipe and a drying pipe are provided inside the lower end of the mounting vertical rod, and the water spray pipe and the drying pipe are arranged in front of the lifting plate.

[0012] As a preferred embodiment of the present invention, a drive assembly is provided on the rear side of the vertical plate, and the drive assembly includes a servo motor, and the servo motor is arranged at the lower end of the rear side of the vertical plate through a motor seat. The power output end of the servo motor is transmission-connected with a rotating shaft 1, and the circumferential surface of the rotating shaft 1 is sequentially provided with a conical driving wheel 1, a conical driving wheel 2 and a driving spur gear from top to bottom, the conical driving wheel 1 is meshed with the conical driven wheel 1, and the conical driving wheel 2 is meshed with the conical driven wheel 2.

[0013] As a preferred embodiment of the present invention, a transmission assembly is provided inside the base, and the transmission assembly includes a transmission, and the transmission is arranged on the rear side wall of the vertical plate through a mounting seat, and a driven spur gear 1 is provided on the circumferential surface of the input end of the transmission, and the driving spur gear is meshed and connected with the driven spur gear 1, and a belt driving pulley is provided on the circumferential surface of the output end of the transmission, and the belt driving pulley is connected to the belt driven pulley through a transmission belt, and a rotating shaft 4 is provided in the middle of the belt driven pulley, and an intermittent gear is provided on the circumferential surface of the rotating shaft 4, and the front end of the intermittent gear is meshed and connected with the driven spur gear 2, and a rotating shaft 5 is provided in the middle of the driven spur gear 2, and the upper end of the rotating shaft 5 passes through the base and is fixedly connected to the middle of the lower surface of the turntable, and the rotating shaft 4 and the rotating shaft 5 are both rotatably installed inside the base.

[0014] As a preferred embodiment of the present invention, a fixed block 1 is provided on the rear side of the vertical plate, the middle part of the rotating shaft 1 and the input end of the transmission are both rotatably mounted inside the fixed block 1, a fixed block 2 is provided on the upper end of the rear side of the L-shaped mounting plate, the upper end of the rotating shaft 1 is rotatably mounted inside the fixed block 2, a fixed block 3 is provided on the upper end of the front side of the vertical plate, a limiting vertical rod is slidably mounted inside the fixed block 3, and the lower end of the limiting vertical rod is fixedly connected to the upper surface of the connecting block.

[0015] As a preferred embodiment of the present invention, a water outlet pipe is provided at the lower end of the washing tank, and the lower end of the water outlet pipe passes through the turntable. A drain pipe is provided inside the base, and the water inlet pipe of the drain pipe is located directly below the clamp.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The reciprocating rotating assembly and the lifting assembly are provided to drive the workpiece to move vertically back and forth, and then the workpiece is immersed in the activation liquid, the cleaning liquid, the electroplating liquid and the sealing agent in sequence, thereby realizing automatic tinning, with high production efficiency, tinning the surface of the tab, and reducing the subsequent use cost;

[0018] (2) By setting the reciprocating lifting assembly and the clamping swing assembly, the corresponding tank body can be shaken during the workpiece dipping operation, making the workpiece dipping efficiency higher and further improving the tinning quality;

[0019] (3) By setting up the transmission components and tinning process components, the entire tinning process of the workpiece can be carried out uninterruptedly, so that the lithium battery tabs can be produced continuously and the production efficiency is higher;

[0020] (4) Through the driving assembly, reciprocating rotating assembly, lifting assembly, reciprocating lifting assembly, transmission assembly, tinning process assembly and clamping swing assembly, the exposed ends of the positive and negative poles of the lithium battery tabs can be tinned, avoiding the defects of poor welding, cold welding, desoldering and the like that are easy to occur in the original welding, reducing the defective rate and thus reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention;

[0023] Figure 2 is a schematic diagram of a second three-dimensional structure of the present invention;

[0024] Figure 3 It is a front cutaway perspective view of the present invention;

[0025] Figure 4 For the present invention Figure 3 A magnified view of the structure at point A;

[0026] Figure 5 It is a right side cutaway perspective view of the present invention;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the lifting component of the present invention;

[0028] Figure 7 For the present invention Figure 6 Left-side cutaway perspective view;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the reciprocating moving assembly of the present invention;

[0030] Figure 9 It is a schematic diagram of the three-dimensional structure of the transmission assembly of the present invention;

[0031] Figure 10 It is a cross-sectional view of the water washing tank of the present invention.

[0032] In the figure: 1, base; 2, vertical plate; 3, driving assembly; 301, servo motor; 302, rotating shaft 1; 303, conical driving wheel 1; 304, conical driving wheel 2; 305, driving spur gear; 4, reciprocating rotation assembly; 401, L-shaped mounting plate; 402, rotating shaft 2; 403, conical driven wheel 1; 404, connecting rod 1; 405, hinge shaft; 406, sprocket 1; 407, sprocket 2; 4 08, connecting rod 2; 5, lifting assembly; 501, fixed horizontal plate; 502, slide plate; 503, connecting shaft; 504, quadrilateral slide; 505, pin shaft; 506, connecting block; 507, mounting vertical rod; 508, clamping claw; 509, limit vertical rod; 6, reciprocating assembly; 601, rotating shaft 3; 602, lifting plate; 603, conical driven wheel 2; 604, eccentric wheel; 605, tooth plate; 6 06. L-shaped lifting block; 7. Transmission assembly; 701. Transmission; 702. Driven spur gear 1; 703. Belt driving pulley; 704. Belt driven pulley; 705. Rotating shaft 4; 706. Intermittent gear; 707. Driven spur gear 2; 708. Rotating shaft 5; 8. Tinning process assembly; 801. Turntable; 802. Activation tank; 803. Cleaning tank; 804. Plating tank; 805. Washing tank; 8 06. Closed tank; 9. Clamping swing assembly; 901. Hollow fixed block; 902. Rotating rod; 903. Driven spur gear three; 904. Screw; 905. Arc splint; 10. Fixed block one; 11. Fixed block two; 12. Horizontal moving groove; 13. Slider; 14. Fixed block three; 15. Water spray pipe; 16. Drying pipe; 17. Movable groove; 18. Roller; 19. Water outlet pipe; 20. Drain pipe. DETAILED DESCRIPTION

[0033] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example

[0035] See also Figure 1 - Figure 10As shown, a tinning device for the exposed ends of the positive and negative electrodes of a lithium battery tab comprises a base 1, a vertical plate 2 is provided on the rear side of the base 1, a drive assembly 3 is provided on the rear side of the vertical plate 2, and the drive assembly 3 comprises a servo motor 301, which is provided at the lower end of the rear side of the vertical plate 2 via a motor seat, and a power output end of the servo motor 301 is connected to a rotating shaft 1 302 via a coupling, and a circumferential surface of the rotating shaft 1 302 is provided with a conical driving wheel 1 303, a conical driving wheel 2 304 and a driving spur gear 305 in sequence from top to bottom. The arrangement of the drive assembly 3 can provide a power source for other components of the device, so that the tinning work can proceed smoothly;

[0036] A reciprocating rotating assembly 4 is provided at the upper end of the rear side of the vertical plate 2. The reciprocating rotating assembly 4 includes an L-shaped mounting plate 401, and the L-shaped mounting plate 401 is provided on the rear side wall of the vertical plate 2. A second rotating shaft 402 is rotatably installed inside the upper end of the L-shaped mounting plate 401. A conical driven wheel 1 403 is provided at the rear end of the rotating shaft 2 402. The conical driving wheel 1 303 is meshed with the conical driven wheel 1 403, so that when the conical driving wheel 1 303 rotates, The second rotating shaft 402 can be driven to rotate by the conical driven wheel 1 403. The circumferential surface of the front end of the second rotating shaft 402 is provided with a connecting rod 1 404 and a sprocket 1 406. The upper end of the connecting rod 1 404 is internally rotatably mounted with a hinge shaft 405. The circumferential surface of the rear end of the second rotating shaft 402 is provided with a sprocket 2 407. The sprocket 1 406 and the sprocket 2 407 are connected by a tooth chain transmission. The circumferential surface of the front end of the second rotating shaft 402 is provided with a connecting rod 2 408.

[0037] It should be noted that the rotation path of the connecting rod 1 404 will not contact the horizontal plate of the L-shaped mounting plate 401, so that the connecting rod 1 404 can continue to rotate and avoid collision with the L-shaped mounting plate 401 and damage.

[0038] A lifting assembly 5 is provided in front of the second connecting rod 408. The lifting assembly 5 includes a fixed transverse plate 501, and the fixed transverse plate 501 is provided on the upper part of the front face of the vertical plate 2. A slide plate 502 is slidably installed inside the front end of the fixed transverse plate 501. The rear wall of the slide plate 502 is provided with a connecting shaft 503. The vertical plate 2 and the fixed transverse plate 501 are both provided with a transverse movement groove 12. The rear side wall of the fixed transverse plate 501 is provided with a slider 13. The slider 13 is slidably installed inside the transverse movement groove 12 of the fixed transverse plate 501. The connecting shaft 503 is provided inside the transverse movement groove 12 of the vertical plate 2. The rear end of the connecting shaft 503 is provided inside the lower end of the second connecting rod 408. The setting of the transverse movement groove 12 gives the slider 13 and the connecting shaft 503 provide a movable space, so that the slider 13 and the connecting shaft 503 can smoothly move horizontally left and right, and then the slide plate 502 can smoothly move horizontally left and right. A quadrilateral slide groove 504 is provided on the front of the slide plate 502, and a pin 505 is slidably installed inside the quadrilateral slide groove 504. The front end of the pin 505 is connected to a connecting block 506 through a spring. Through the setting of the spring, the connecting block 506 and the pin 505 can be stably installed on the slide plate 502. The lower end of the connecting block 506 is provided with a mounting vertical rod 507, and the lower end of the mounting vertical rod 507 is provided with a clamping claw 508. The clamping claw 508 is a commonly used mechanism in this field, so it will not be described in detail.

[0039] It should be noted that the quadrilateral slide 504 is of stepped design, with a deeper horizontal groove, a gradually shallower depth of the left oblique groove upward, and a gradually shallower depth of the right oblique groove downward, so that when the pin 505 and the connecting block 506 move inside the horizontal groove, the height of the pin 505 and the connecting block 506 does not change. When the pin 505 and the connecting block 506 are in the oblique groove and move, the pin 505 moves toward the inside of the connecting block 506 while the connecting block 506 moves vertically. When the second rotating shaft 402 drives the second connecting rod 408 to rotate through the first sprocket 406 and the second sprocket 407, many dead points can be avoided, so that the second connecting rod 408 can more smoothly drive the slide plate 502 to move back and forth horizontally through the connecting shaft 503.

[0040] A tinning process assembly 8 is provided below the clamping jaw 508. The tinning process assembly 8 includes a turntable 801, and the lower surface of the turntable 801 is rotatably mounted on the upper surface of the base 1 through a roller 18. An activation tank 802, a cleaning tank 803, an electroplating tank 804, a water washing tank 805 and a sealing tank 806 are sequentially provided on the upper surface of the turntable 801 from back to front. A water outlet pipe 19 is provided at the lower end of the water washing tank 805, and the lower end of the water outlet pipe 19 passes through the turntable 801. A drain pipe 20 is provided inside the base 1. The water inlet pipe of the drain pipe 20 is located directly below the clamping jaw 508. The arrangement of the water outlet pipe 19 and the drain pipe 20 enables water to be discharged through the water outlet pipe 19 and the drain pipe 20 when the lithium battery tab is washed.

[0041] It should be noted that an activation liquid is placed inside the activation tank 802, and the workpiece can be immersed in the activation liquid. The oxide layer on the surface of the workpiece can be removed by chemical reaction, thereby improving the activity of the surface and making the surface smoother and cleaner, which is beneficial to the subsequent electroplating process. Clean water or cleaning liquid is placed inside the cleaning tank 803, which can clean some activation liquid and other impurities that may remain on the surface of the workpiece. Electroplating liquid is placed inside the electroplating tank 804, and the cleaned workpiece can be immersed in the electroplating liquid. A layer of tin is deposited on the surface of the workpiece by electrolysis. After electroplating, some electroplating liquid and other impurities may remain on the surface of the workpiece, and it is rinsed in the water washing tank 805 to avoid liquid splashing and polluting the working environment during rinsing. A sealant is placed inside the sealing tank 806, and the rinsed workpiece is immersed in the sealant to further improve the performance and stability of the coating.

[0042] The activation tank 802, the cleaning tank 803 and the closing tank 806 are all arranged above the turntable 801 through the clamping swing assembly 9. The clamping swing assembly 9 includes a hollow fixed block 901, and the hollow fixed block 901 is arranged on the upper surface of the turntable 801. A rotating rod 902 is movably installed inside the hollow fixed block 901. One end of the rotating rod 902 passes through the hollow fixed block 901 and is fixedly connected to an arc-shaped splint 905. A driven spur gear three 903 is provided on the circumferential surface of the other end of the rotating rod 902. A screw 904 is rotatably installed inside the rotating rod 902, and the other end of the screw 904 is threadedly connected to the hollow fixed block 901. By rotating the screw 904, the screw 904 can push the rotating rod 902 and the arc-shaped splint 905 to move horizontally, and then the tank body can be smoothly clamped and fixed or the fixing effect on the tank body can be lost, which is convenient for disassembly, cleaning, replacement, etc. of the tank body.

[0043] It should be noted that during the activation step, in order to accelerate the chemical reaction or ensure sufficient contact between the activation liquid and the workpiece surface, slight stirring or shaking may be performed. During immersion cleaning, the cleaning liquid is prone to precipitation or stratification, and stirring or shaking is required to maintain the uniformity of the cleaning liquid. When dipping the sealant, slight stirring or shaking is required to maintain the uniformity of the sealant. Therefore, the activation tank 802, the cleaning tank 803 and the closing tank 806 are suspended and clamped by the clamping swing component 9, so that the activation tank 802, the cleaning tank 803 and the closing tank 806 can be swung back and forth to shake the liquid inside and improve the overall tin plating effect.

[0044] A reciprocating assembly 6 is provided above the hollow fixed block 901. The reciprocating assembly 6 includes a rotating shaft 3 601 and a lifting plate 602. The rotating shaft 3 601 is rotatably mounted inside the vertical plate 2. The lifting plate 602 is movably mounted inside the lower end of the mounting vertical rod 507 through a spring. A movable groove 17 is provided inside the lower end of the mounting vertical rod 507. The lifting plate 602 and the spring connected thereto are both arranged inside the movable groove 17. The setting of the movable groove 17 provides the lifting plate 602 with a movable space so that the lifting plate 602 can move vertically smoothly. The rear end of the rotating shaft 3 601 is provided with a conical driven wheel 2 603 and a conical driving wheel The second 304 is meshed and connected with the conical driven wheel second 603, the front end of the rotating shaft 3 601 is provided with an eccentric wheel 604, the rear end of the lifting plate 602 is provided with an L-shaped lifting block 606, and the L-shaped lifting block 606 is arranged directly above the eccentric wheel 604, and the left and right sides of the lower end of the lifting plate 602 are provided with toothed plates 605, and the toothed plates 605 are arranged directly above the driven spur gear three 903. After the toothed plate 605 moves downward into the hollow fixed block 901, the toothed plate 605 will mesh with the driven spur gear three 903, and then when the toothed plate 605 performs vertical reciprocating movement, it can smoothly drive the driven spur gear three 903 to rotate back and forth;

[0045] Among them, a water spray pipe 15 and a drying pipe 16 are provided inside the lower end of the mounting vertical rod 507, and the water spray pipe 15 and the drying pipe 16 are provided in front of the lifting plate 602. The right ends of the water spray pipe 15 and the drying pipe 16 are connected to a water pump and a hot air blower respectively. The lower ends of the left sides of the water spray pipe 15 and the drying pipe 16 are both provided with a water spray port and an air outlet, and the water spray port and the air outlet are both directed towards the workpiece, so that the washing or drying effect can be better during water washing and drying.

[0046] The base 1 is provided with a transmission assembly 7, which includes a transmission 701, and the transmission 701 is provided on the rear side wall of the vertical plate 2 through a mounting seat. The circumferential surface of the input end of the transmission 701 is provided with a driven spur gear 702, and the driving spur gear 305 is meshed and connected with the driven spur gear 702. The circumferential surface of the output end of the transmission 701 is provided with a belt driving pulley 703, and the belt driving pulley 703 is connected to the belt driven pulley 704 through a transmission belt. A rotating shaft 7 is provided in the middle of the belt driven pulley 704. 05, an intermittent gear 706 is provided on the circumferential surface of the rotating shaft 4 705, and the front end of the intermittent gear 706 is meshedly connected with the driven spur gear 2 707, and a rotating shaft 5 708 is provided in the middle of the driven spur gear 2 707, and the upper end of the rotating shaft 5 708 passes through the base 1 and is fixedly connected to the middle of the lower surface of the turntable 801. The rotating shaft 4 705 and the rotating shaft 5 708 are both rotatably mounted inside the base 1, and can limit the support of the rotating shaft 4 705 and the rotating shaft 5 708, so that the rotating shaft 4 705 and the rotating shaft 5 708 can rotate stably;

[0047] It should be noted that when the slide 502 moves left and right once and moves to the initial position, the rotating shaft 1 302 drives the rotating shaft 2 402 and the connecting rod 1 404 to rotate one circle through the conical driving wheel 1 303 and the conical driven wheel 1 403. At the same time, the rotating shaft 1 302 drives the intermittent gear 706 to rotate one circle through the driving spur gear 305 and the transmission 701, so that the driven spur gear 2 707 drives the turntable 801 to rotate once through the rotating shaft 5 708. The distance that the turntable 801 rotates once is, the activation tank 802 rotates to the right, and the cleaning tank 803 rotates to the original position of the activation tank 802, that is, directly below the clamping claw 508.

[0048] A fixing block 10 is provided on the rear side of the vertical plate 2, and the middle part of the rotating shaft 302 and the input end of the transmission 701 are both rotatably mounted inside the fixing block 10. A fixing block 2 11 is provided on the upper end of the rear side of the L-shaped mounting plate 401, and the upper end of the rotating shaft 302 is rotatably mounted inside the fixing block 2 11. A fixing block 3 14 is provided on the upper end of the front side of the vertical plate 2, and a limiting vertical rod 509 is slidably mounted inside the fixing block 3 14, and the lower end of the limiting vertical rod 509 is fixedly connected to the upper surface of the connecting block 506. The setting of the fixing block 10, the fixing block 2 11 and the fixing block 3 14 can limit the rotating shaft 302 and the limiting vertical rod 509 without affecting the rotation of the rotating shaft 302 or the vertical movement of the limiting vertical rod 509.

[0049] It should be noted that the time for activation, cleaning, electroplating, water washing and dipping of the workpiece into the sealant is not necessarily the same. When switching steps, the speed of the servo motor 301 can be changed to control the processing time of the workpiece.

[0050] When the present invention is in use, the servo motor 301 is started, and the servo motor 301 drives the rotating shaft 1 302, the conical driving wheel 1 303, the conical driving wheel 2 304 and the driving spur gear 305 to rotate. The rotation of the conical driving wheel 1 303 drives the conical driven wheel 1 403 and the rotating shaft 2 402 to rotate, so that the rotating shaft 2 402 drives the connecting shaft 503 and the slide 502 to move horizontally left and right through the connecting rod 1 404 and the connecting rod 2 408. The slide 502 will first move to the left. When the slide 502 moves to the left and the pin 505 moves into the right oblique groove, the pin 505 and the connecting block 506 will move downward. When the pin 505 is located inside and below the right end of the quadrilateral slide 504, the connecting block 506 drops to the lowest point. The connecting block 506 moves downward, driving the installation vertical rod 507, the clamping jaw 508 and the workpiece to move downward, so that the lower end of the workpiece is immersed in the liquid inside the activation tank 802 to perform a chemical reaction.

[0051] At the same time, the installation of the vertical rod 507 will synchronously drive the lifting plate 602 and the tooth plate 605 to move downward, so that the tooth plate 605 is engaged with the driven spur gear 3 903, and the L-shaped lifting block 606 is close to the eccentric wheel 604, so that when the conical driving wheel 2 304 drives the conical driven wheel 2 603, the rotating shaft 3 601 and the eccentric wheel 604 to rotate, the raised end of the eccentric wheel 604 contacts the L-shaped lifting block 606, which can push the L-shaped lifting block 606 to move upward, and the eccentric wheel 604 is rotated. When 04 is not in contact with the L-shaped lifting block 606, the L-shaped lifting block 606 moves downward under the action of the spring, so that the lifting plate 602 and the tooth plate 605 can move vertically back and forth, and then drive the driven spur gear three 903 to rotate back and forth, so that the driven spur gear three 903 drives the rotating rod 902, the arc-shaped clamping plate 905 and the activation tank 802 to swing back and forth in a small range, shaking the liquid inside the activation tank 802 to ensure that the activation liquid is in full contact with the surface of the workpiece;

[0052] When the pin 505 moves to the bottom of the left end of the quadrilateral slide 504, the workpiece activation is completed. At this time, when the pin 505 enters the left oblique groove, it can drive the installation vertical rod 507 to move vertically upward, so that the workpiece and the tooth plate 605 are moved to the top of the activation tank 802. The active spur gear 305 drives the driven spur gear 1 702 and the transmission 701 to rotate. The transmission 701 rotates through the belt driving pulley 703, the transmission belt and the belt driven pulley 704, so that the rotating shaft 4 705 and the intermittent gear 706 rotate. Then, when the pin 505 moves to the upper end horizontal groove and moves to the right at the same time, the intermittent gear 706 rotates to engage with the driven spur gear 2 707, driving the driven spur gear 2 707, the rotating shaft 5 708 and the turntable 801 to rotate. The activation tank 802 is rotated to the right, and the cleaning tank 803 is rotated to the bottom of the clamp 508 at the same time, and the above operations are continued to realize the cleaning of the workpiece. After that, when the electroplating tank 804 moves to the bottom of the clamp 508, the workpiece is tinned. Then, when the water washing tank 805 moves to the bottom of the clamp 508, the workpiece moves into the water washing tank 805, the water pump works, and clean water is sprayed at the outlet pipe 19 to rinse the surface of the workpiece. Finally, the closing tank 806 moves to the bottom of the clamp 508 to dip the sealant. After all the above steps are completed on a workpiece, the tinning work is completed. Before the activation tank 802 moves to the bottom of the clamp 508 again, the tinned workpiece can be removed and replaced with a new workpiece for subsequent tinning.

[0053] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for tinning the exposed ends of the positive and negative electrodes of a lithium battery tab, comprising a base (1), a vertical plate (2) being provided on the rear side of the base (1), characterized in that: A reciprocating rotating assembly (4) is provided at the upper rear end of the vertical plate (2), and the reciprocating rotating assembly (4) includes an L-shaped mounting plate (401), and the L-shaped mounting plate (401) is provided on the rear side wall of the vertical plate (2), and a second rotating shaft (402) is rotatably installed inside the upper end of the L-shaped mounting plate (401), and a conical driven wheel (403) is provided at the rear end of the second rotating shaft (402), and a connecting rod is provided on the circumferential surface of the front end of the second rotating shaft (402). One (404) and sprocket one (406), a hinge shaft (405) is rotatably installed inside the upper end of the connecting rod one (404), a sprocket two (407) is provided on the circumferential surface of the rear end of the rotating shaft two (402), the sprocket one (406) and the sprocket two (407) are connected through a tooth chain transmission, a connecting rod two (408) is provided on the circumferential surface of the front end of the rotating shaft two (402), and a lifting component (5) is provided in front of the connecting rod two (408); The lifting assembly (5) includes a fixed transverse plate (501), and the fixed transverse plate (501) is arranged on the upper part of the front face of the vertical plate (2); a slide plate (502) is slidably installed inside the front end of the fixed transverse plate (501); a connecting shaft (503) is provided on the rear wall of the slide plate (502); the rear end of the connecting shaft (503) is arranged inside the lower end of the second connecting rod (408); a quadrilateral sliding groove (504) is provided on the front face of the slide plate (502), and a pin shaft (505) is slidably installed inside the quadrilateral sliding groove (504); the front end of the pin shaft (505) is connected to a connecting block (506) through a spring; the lower end of the connecting block (506) is provided with a mounting vertical rod (507); the lower end of the mounting vertical rod (507) is provided with a clamping claw (508).

2. The device for tinning the exposed ends of the positive and negative electrodes of a lithium battery tab according to claim 1, characterized in that: The vertical plate (2) and the fixed horizontal plate (501) are both provided with a transverse moving groove (12), the rear side wall of the fixed horizontal plate (501) is provided with a slider (13), the slider (13) is slidably installed inside the transverse moving groove (12) of the fixed horizontal plate (501), and the connecting shaft (503) is provided inside the transverse moving groove (12) of the vertical plate (2).

3. The device for tinning the exposed ends of the positive and negative electrodes of a lithium battery tab according to claim 1, characterized in that: A tinning process assembly (8) is provided below the clamping jaw (508), and the tinning process assembly (8) includes a turntable (801), and the lower surface of the turntable (801) is rotatably mounted on the upper surface of the base (1) via a roller (18), and an activation tank (802), a cleaning tank (803), an electroplating tank (804), a water washing tank (805) and a sealing tank (806) are provided on the upper surface of the turntable (801) in sequence from back to front.

4. The device for tinning the exposed ends of the positive and negative electrodes of a lithium battery tab according to claim 3, characterized in that: The activation tank (802), the cleaning tank (803) and the sealing tank (806) are all arranged above the turntable (801) through a clamping and swinging assembly (9), the clamping and swinging assembly (9) includes a hollow fixed block (901), and the hollow fixed block (901) is arranged on the upper surface of the turntable (801), a rotating rod (902) is movably installed inside the hollow fixed block (901), one end of the rotating rod (902) passes through the hollow fixed block (901) and is fixedly connected to an arc-shaped clamping plate (905), a driven spur gear three (903) is provided on the circumferential surface of the other end of the rotating rod (902), a screw rod (904) is rotatably installed inside the rotating rod (902), and the other end of the screw rod (904) is threadedly connected to the hollow fixed block (901).

5. The device for tinning the exposed ends of the positive and negative electrodes of a lithium battery tab according to claim 4, characterized in that: A reciprocating assembly (6) is provided above the hollow fixed block (901), and the reciprocating assembly (6) includes a rotating shaft (3) (601) and a lifting plate (602). The rotating shaft (3) (601) is rotatably mounted inside the vertical plate (2), and the lifting plate (602) is mounted inside the lower end of the mounting vertical rod (507) through a spring. The rear end of the rotating shaft (3) (601) is provided with a conical driven wheel (2) (603), the front end of the rotating shaft (3) (601) is provided with an eccentric wheel (604), the rear end of the lifting plate (602) is provided with an L-shaped lifting block (606), and the L-shaped lifting block (606) is provided directly above the eccentric wheel (604). Tooth plates (605) are provided on both sides of the lower end of the lifting plate (602), and the tooth plates (605) are provided directly above the driven spur gear (3) (903).

6. The device for tinning the exposed ends of the positive and negative electrodes of a lithium battery tab according to claim 5, characterized in that: A movable groove (17) is provided inside the lower end of the mounting vertical rod (507), and the lifting plate (602) and the spring connected thereto are both arranged inside the movable groove (17). A water spray pipe (15) and a drying pipe (16) are provided inside the lower end of the mounting vertical rod (507), and the water spray pipe (15) and the drying pipe (16) are arranged in front of the lifting plate (602).

7. The device for tinning the exposed ends of the positive and negative electrodes of a lithium battery tab according to claim 5, characterized in that: A driving assembly (3) is provided on the rear side of the vertical plate (2), and the driving assembly (3) includes a servo motor (301). The servo motor (301) is provided at the rear lower end of the vertical plate (2) via a motor seat. The power output end of the servo motor (301) is transmission-connected to a rotating shaft (302). The circumferential surface of the rotating shaft (302) is provided with a conical driving wheel (303), a conical driving wheel (304), and a driving spur gear (305) in sequence from top to bottom. The conical driving wheel (303) is meshedly connected to the conical driven wheel (403), and the conical driving wheel (304) is meshedly connected to the conical driven wheel (603).

8. The device for tinning the exposed ends of the positive and negative electrodes of a lithium battery tab according to claim 7, characterized in that: A transmission assembly (7) is provided inside the base (1), and the transmission assembly (7) includes a transmission (701), and the transmission (701) is provided on the rear side wall of the vertical plate (2) through a mounting seat, a driven spur gear (702) is provided on the circumferential surface of the input end of the transmission (701), and the driving spur gear (305) is meshedly connected with the driven spur gear (702), and a belt driving wheel (703) is provided on the circumferential surface of the output end of the transmission (701), and the belt driving wheel (703) is connected to the belt driven wheel (703) through a transmission belt. 704), a rotating shaft four (705) is provided in the middle of the belt driven pulley (704), an intermittent gear (706) is provided on the circumferential surface of the rotating shaft four (705), the front end of the intermittent gear (706) is meshedly connected with a driven spur gear two (707), a rotating shaft five (708) is provided in the middle of the driven spur gear two (707), and the upper end of the rotating shaft five (708) passes through the base (1) and is fixedly connected to the middle of the lower surface of the turntable (801), and the rotating shaft four (705) and the rotating shaft five (708) are both rotatably mounted inside the base (1).

9. The device for tinning the exposed ends of the positive and negative electrodes of a lithium battery tab according to claim 8, characterized in that: A fixed block 1 (10) is provided on the rear side of the vertical plate (2), the middle part of the rotating shaft 1 (302) and the input end of the transmission (701) are both rotatably mounted inside the fixed block 1 (10), a fixed block 2 (11) is provided on the upper end of the rear side of the L-shaped mounting plate (401), the upper end of the rotating shaft 1 (302) is rotatably mounted inside the fixed block 2 (11), a fixed block 3 (14) is provided on the upper end of the front side of the vertical plate (2), a limiting vertical rod (509) is slidably mounted inside the fixing block 3 (14), and the lower end of the limiting vertical rod (509) is fixedly connected to the upper surface of the connecting block (506).

10. The device for tinning the exposed ends of the positive and negative electrodes of a lithium battery tab according to claim 4, characterized in that: The lower end of the washing tank (805) is provided with a water outlet pipe (19), and the lower end of the water outlet pipe (19) passes through the turntable (801). The interior of the base (1) is provided with a drain pipe (20), and the water inlet pipe of the drain pipe (20) is located directly below the clamping claw (508).

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