A lithium battery production device and production process

Abstract

The present invention provides a lithium battery production device and production process, belonging to the technical field of lithium battery production. The lithium battery production device includes an operating table, a feeding mechanism and a welding mechanism. The operating table surface is provided with a first feeding frame and a second feeding frame. The first feeding frame is rotatably provided with a conveyor belt. The feeding mechanism includes a material box, a discharge roller and a first rotating shaft. The material box is fixedly provided on the operating table surface. The discharge roller is rotatably provided in the inner cavity of the material box. A plurality of discharge troughs are provided on the surface of the discharge roller. A first motor is fixedly provided on the side wall of the material box. The output end of the first motor is fixedly connected to one end of the discharge roller. The present invention sets a feeding mechanism. The first motor can drive the discharge roller to rotate counterclockwise to discharge the lithium battery onto the surface of the conveyor belt. At the same time, the first gear can drive the second gear and the cleaning disk to rotate simultaneously to clean the surface of the lithium battery electrode, so as to avoid impurities from forming inclusions at the welding point, thereby reducing the welding strength and the reliability of the structure.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery production, and in particular to a lithium battery production device and a production process. Background Art

[0002] In the manufacturing and assembly process of lithium batteries, spot welding is a key step. It is mainly used to connect the individual cells of the battery into a battery pack through welding technology to increase the total capacity of the battery pack. It is mainly achieved by interconnecting the electrodes of the battery cells through metal contacts to achieve electrical connection of the battery pack. In this way, the battery pack can effectively transmit current, and the electrode sheets of the battery are fixed together by welding to provide stable mechanical support, ensuring that the battery pack will not loosen or fall off during use.

[0003] In the existing lithium battery welding and assembly process, most of them are still carried out manually with a handheld welding machine, which has low welding efficiency and is inconvenient to clean the surface of the lithium battery pole during welding, affecting the welding quality. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a lithium battery production device and production process that overcome the above technical problems or at least partially solve the above problems.

[0005] The present invention is achieved in that:

[0006] The present invention provides a lithium battery production device, including an operating table, a feeding mechanism and a welding mechanism. A first feeding frame and a second feeding frame are installed on the surface of the operating table. A conveyor belt is rotatably installed in the first feeding frame. The feeding mechanism includes:

[0007] A material box, which is fixedly mounted on the surface of the operating table and is used to store lithium batteries;

[0008] A material discharge roller, which is rotatably mounted in the inner cavity of the material box, and a plurality of material discharge grooves are provided on the surface of the material discharge roller;

[0009] A first rotating shaft, the first rotating shaft is rotatably mounted in the inner cavity of the material box, and a cleaning disk is symmetrically fixedly mounted on the surface of the first rotating shaft for cleaning the surface of the lithium battery electrode;

[0010] The welding mechanism is installed on the surface of the operating table, and the welding mechanism includes a feed tray, an active roller and a laser welding head. The feed tray is symmetrically rotatably installed on the surface of the operating table for storing the nickel strip. The active roller is symmetrically rotatably installed on the surface of the operating table for conveying the nickel strip. A first slide seat is symmetrically slidably installed on the surface of the operating table, and a laser welding head is fixedly installed on the side wall of the first slide seat.

[0011] In a preferred embodiment, a first motor is fixedly mounted on the side wall of the material box, an output end of the first motor is fixedly connected to one end of a feed roller, a first gear is fixedly mounted on the other end of the feed roller, a second gear is fixedly mounted on one end of the first rotating shaft, and the first gear is meshed with the second gear.

[0012] In a preferred solution, a slider is slidably installed in the inner cavity of the operating table, a first push rod is fixedly installed on the side wall of the slider, a first push block is fixedly installed on the other end of the first push rod, and is used to push the lithium battery in the first feeding frame into the second feeding frame, a driving frame is fixedly installed on the bottom of the slider, a second motor is fixedly installed on the inner wall of the operating table, a driving disk is fixedly installed on the output end of the second motor, an eccentric shaft is fixedly installed on the surface of the driving disk, and the eccentric shaft is inserted in the inner cavity of the driving frame to drive the slider to reciprocate left and right.

[0013] In a preferred solution, a second push block is slidably installed in the second feeding frame, a first tooth plate is fixedly installed at the bottom of the second push block, a third gear is rotatably installed in the inner cavity of the second feeding frame, the third gear is meshed with the first tooth plate, a fourth gear is fixedly installed at the lower part of the third gear through a short shaft, a second tooth plate is slidably installed in the inner cavity of the operating table, the second tooth plate is meshed with the fourth gear, and a first connecting rod is connected between the second tooth plate and the driving frame.

[0014] In a preferred solution, a third motor is symmetrically fixedly installed in the inner cavity of the operating table, the output end of the third motor is fixedly connected to the bottom of the active roller, a second slide is symmetrically and slidably installed on the surface of the operating table, a squeezing roller is rotatably installed on the surface of the second slide, a first electric telescopic rod is symmetrically and fixedly installed on the surface of the operating table, the telescopic end of the first electric telescopic rod is fixedly connected to the second slide, a second electric telescopic rod is symmetrically and fixedly installed on the surface of the operating table, and the telescopic end of the second electric telescopic rod is fixedly connected to the first slide.

[0015] In a preferred solution, a cutter is fixedly installed on the side wall of the first slide for cutting the nickel strip, a plurality of sleeves are installed on the right part of the first slide, a first piston is slidably installed in the inner cavity of the sleeve, a first spring is installed in the inner cavity of the sleeve, one end of the first spring is fixedly connected to the sleeve, and the other end of the first spring is fixedly connected to the first piston, a second connecting rod is installed on the surface of the first piston, and a positioning frame is installed on the other end of the second connecting rod for positioning the nickel strip at the electrode end of the lithium battery, and a first heat dissipation hole is opened on the side wall of the sleeve for dissipating heat from the laser welding head.

[0016] In a preferred solution, a pressure plate is slidably installed in the inner cavity of the second feeding frame for squeezing and positioning the lithium battery, a second spring is symmetrically installed on the surface of the pressure plate, the other end of the second spring is fixedly connected to the second feeding frame, and is used to drive the pressure plate to move downward, a plurality of partition blocks are installed at the bottom of the pressure plate, a first air cavity is provided in the inner cavity of the pressure plate, a second piston is slidably installed in the first air cavity, a third connecting rod is fixedly installed on the surface of the second piston, the other end of the third connecting rod is fixedly connected to the second feeding frame, a plurality of second heat dissipation holes are provided on the side wall of the partition block, and the second heat dissipation holes are connected to the first air cavity.

[0017] In a preferred embodiment, a heat dissipation mechanism is installed on the surface of the operating table to dissipate heat from the lithium battery. The heat dissipation mechanism includes a gas tank, a support and a sealing plate. The support is symmetrically installed on the surface of the operating table. A gas tank is installed on the surface of the support to store inert gas. A channel is opened in the inner cavity of the support. The gas tank is connected to the channel. The sealing plate is slidably installed in the inner cavity of the support to seal the channel.

[0018] In a preferred embodiment, a through hole is provided on the surface of the blocking plate, a third spring is installed in the inner cavity of the support, one end of the third spring is fixedly connected to the blocking plate for driving the blocking plate, a first extrusion block is fixedly installed on one end of the blocking plate, a second extrusion block is fixedly installed on the side wall of the first slide seat, the surfaces of the first extrusion block and the second extrusion block are both wedge-shaped, a second air cavity is provided in the inner cavity of the second feeding frame, an air pipe is connected between the second air cavity and the through hole, and a plurality of third heat dissipation holes are provided on the side wall of the second air cavity for dissipating heat from the lithium battery.

[0019] A lithium battery production process, applicable to the lithium battery production device described above, comprises the following steps:

[0020] S1: Loading: The first motor drives the unloading roller to rotate counterclockwise, so that the lithium batteries that fall into the inner cavity of the unloading trough are discharged from the material box and fall onto the surface of the conveyor belt for unloading. At the same time, the first gear can drive the second gear and the cleaning disk to rotate simultaneously to clean the surface of the lithium battery electrode;

[0021] S2: welding; the active roller can be driven to rotate by the third motor, and then the squeezing roller is driven to approach the active roller by the first electric telescopic rod, so that the nickel strip is closely attached to the surface of the active roller. Then, under the action of the active roller, the nickel strip can be driven to insert into the inner cavity of the second feeding frame to realize automatic feeding; the laser welding head is driven to move toward the lithium battery electrode by the second electric telescopic rod, the nickel strip is cut by the cutter, and the nickel strip is pressed tightly against the surface of the lithium battery electrode by the positioning frame, so that the nickel strip can be welded to the surface of the lithium battery electrode by the laser welding head;

[0022] S3: Heat dissipation; when the second electric telescopic rod drives the first slide to move, the second extrusion block can drive the first extrusion block to drive the sealing plate to move toward the inner cavity of the support. When the through hole is located between the channels, the channels are connected, and the gas in the gas tank enters the second air cavity through the channel and is ejected from the third heat dissipation hole to the electrode end of the lithium battery to complete the heat dissipation.

[0023] The present invention provides a lithium battery production device and production process, the beneficial effects of which include:

[0024] 1. By setting up a feeding mechanism, the first motor can drive the unloading roller to rotate counterclockwise to discharge the lithium batteries onto the surface of the conveyor belt. At the same time, the first gear can drive the second gear and the cleaning disk to rotate simultaneously to clean the surface of the lithium battery electrode to avoid impurities from forming inclusions at the welding point, thereby reducing the welding strength and reliability of the structure.

[0025] 2. By setting up a welding mechanism, the first electric telescopic rod drives the extrusion roller to approach the active roller, and the nickel strip is pressed against the surface of the active roller. Under the action of the active roller, the nickel strip can be driven to be inserted into the inner cavity of the second feeding frame to realize automatic loading; the second electric telescopic rod can drive the laser welding head to move toward the lithium battery electrode, and the nickel strip is pressed against the surface of the lithium battery electrode through the positioning frame. At the same time, under the action of the second spring, the pressure plate is driven to be pressed against the surface of the lithium battery, and the lithium battery is divided by the partition block to ensure the stability of welding. After welding is completed, the second electric telescopic rod is reset, and the first piston sprays the air in the sleeve from the first heat dissipation hole to the surface of the laser welding head for jet heat dissipation, thereby extending the service life of the laser welding head and ensuring the stability of the welding process.

[0026] 3. By setting up a heat dissipation mechanism, under the action of the third spring, the blocking plate is driven to move left to block the channel. When the second electric telescopic rod drives the first slide to move, the first extrusion block can be driven by the second extrusion block to drive the blocking plate to move toward the inner cavity of the support. As the blocking plate moves, when the through hole is located between the channels, the channels are connected, and the gas in the gas tank enters the second air cavity through the channel and is ejected from the third heat dissipation hole to the electrode end of the lithium battery to dissipate heat. With the cooperation of the second heat dissipation hole, the inert gas ejected from the gas tank is evenly dispersed on the surface of the lithium battery to improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those skilled in the art, other relevant drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 is a front perspective view provided by an embodiment of the present invention;

[0029] Figure 2 A side perspective view of an embodiment of the present invention is provided;

[0030] Figure 3 A top view of an embodiment of the present invention;

[0031] Figure 4 A cross-sectional view of a material box provided for an embodiment of the present invention;

[0032] Figure 5 A cross-sectional view of an operating table provided for an embodiment of the present invention;

[0033] Figure 6 A partial exploded view of a feeding mechanism provided in an embodiment of the present invention;

[0034] Figure 7 A side cross-sectional view provided for an embodiment of the present invention;

[0035] Figure 8 A cross-sectional view of a second feeding frame provided in an embodiment of the present invention;

[0036] Fig. 9 The embodiments of the present invention provide Figure 8 Enlarged view of point A in the middle;

[0037] Fig.10 A cross-sectional view of a pressing plate provided for an embodiment of the present invention;

[0038] Fig.11 A cross-sectional view of a sleeve provided for an embodiment of the present invention;

[0039] Fig.12 A cross-sectional view of a support provided in accordance with an embodiment of the present invention.

[0040] In the figure: 1, operating table; 2, first feeding frame; 3, second feeding frame; 4, conveyor belt; 5, feeding mechanism; 501, material box; 502, unloading roller; 503, unloading chute; 504, first motor; 505, first rotating shaft; 506, cleaning plate; 507, second gear; 508, first gear; 509, slider; 510, first push rod; 511, first push block; 512, driving frame; 513, second motor; 514, driving plate; 515, eccentric shaft; 516, second push block; 517, first tooth plate; 518, third gear; 519, fourth gear; 520, second tooth plate; 521, first connecting rod; 6, welding mechanism; 601, feeding plate; 602, active roller; 603, third motor; 604, second slide; 60 5. Extrusion roller; 606. First electric telescopic rod; 607. First slide seat; 608. Second electric telescopic rod; 609. Cutter; 610. Laser welding head; 612. Sleeve; 613. First piston; 614. First spring; 615. Second connecting rod; 616. Positioning frame; 617. First heat dissipation hole; 618. Press plate; 619. Second spring; 620. Separation block; 621. First air cavity; 622. Second piston; 623. Third connecting rod; 624. Second heat dissipation hole; 7. Heat dissipation mechanism; 701. Gas tank; 702. Support; 703. Channel; 704. Blocking plate; 705. Through hole; 706. Third spring; 707. First extrusion block; 708. Second extrusion block; 709. Second air cavity; 710. Third heat dissipation hole. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Reference Figure 1-Figure 12As shown, the present invention provides a technical solution: a lithium battery production device, including an operating table 1, a feeding mechanism 5 and a welding mechanism 6, a first feeding frame 2 and a second feeding frame 3 are installed on the surface of the operating table 1, a conveyor belt 4 is rotatably installed in the first feeding frame 2 for conveying lithium batteries, the feeding mechanism 5 includes a material box 501, a discharge roller 502 and a first rotating shaft 505, the material box 501 is fixedly installed on the surface of the operating table 1 for storing lithium batteries, the discharge roller 502 is rotatably installed in the inner cavity of the material box 501 for discharging lithium batteries, a plurality of discharge troughs 503 are opened on the surface of the discharge roller 502, a first motor 504 is fixedly installed on the side wall of the material box 501, the output end of the first motor 504 is fixedly connected to one end of the discharge roller 502, and the first rotating shaft 505 is rotatably installed in the material box 501 inner cavity, a cleaning disk 506 is symmetrically fixedly installed on the surface of the first rotating shaft 505 for cleaning the surface of the lithium battery electrode, a first gear 508 is fixedly installed on the other end of the unloading roller 502, and a second gear 507 is fixedly installed on one end of the first rotating shaft 505. The first gear 508 is meshed with the second gear 507. The unloading roller 502 can be driven by the first motor 504 to rotate counterclockwise, so that the lithium batteries dropped into the inner cavity of the unloading trough 503 are discharged from the material box 501 and dropped onto the surface of the conveyor belt 4 for unloading. At the same time, the second gear 507 and the cleaning disk 506 can be driven by the first gear 508 to rotate simultaneously to clean the surface of the lithium battery electrode to avoid impurities from forming inclusions at the welding point, thereby reducing the welding strength and the reliability of the structure.

[0043] Reference Figure 1-Figure 7 As shown, in a preferred embodiment, a slider 509 is slidably installed in the inner cavity of the operating table 1, a first push rod 510 is fixedly installed on the side wall of the slider 509, and a first push block 511 is fixedly installed on the other end of the first push rod 510, which is used to push the lithium battery in the first feeding frame 2 into the second feeding frame 3, a driving frame 512 is fixedly installed at the bottom of the slider 509, a second motor 513 is fixedly installed on the inner wall of the operating table 1, and a driving disk 514 is fixedly installed on the output end of the second motor 513, and the surface of the driving disk 514 An eccentric shaft 515 is fixedly installed and installed at a non-center position of the driving disk 514. The eccentric shaft 515 is inserted into the inner cavity of the driving frame 512 to drive the slider 509 to move back and forth. When the lithium battery that falls onto the surface of the conveyor belt 4 is transported to the side wall of the first push block 511, the driving disk 514 is driven to rotate by the second motor 513, thereby driving the driving frame 512 and the slider 509 to move back and forth through the eccentric shaft 515, and pushing the lithium battery into the second feeding frame 3 through the first push block 511.

[0044] Reference Figure 1-Figure 7As shown, in a preferred embodiment, a second push block 516 is slidably installed in the second feeding frame 3, which is used to push the lithium battery in the inner cavity of the second feeding frame 3, and a first tooth plate 517 is fixedly installed at the bottom of the second push block 516. A third gear 518 is rotatably installed in the inner cavity of the second feeding frame 3, and the third gear 518 is meshed with the first tooth plate 517. A fourth gear 519 is fixedly installed at the lower part of the third gear 518 through a short shaft, and a second tooth plate 520 is slidably installed in the inner cavity of the operating table 1, and the second tooth plate 520 is meshed with the fourth gear 519. A first connecting rod 521 is connected between the second tooth plate 520 and the driving frame 512. After the first push block 511 pushes the lithium battery into the second feeding frame 3, the slider 509 moves left for reset, and drives the second tooth plate 520 to move synchronously through the driving frame 512, thereby driving the fourth gear 519 and the third gear 518 to rotate counterclockwise, driving the first tooth plate 517 and the second push block 516 to move forward, and pushing the lithium battery forward to achieve automatic loading.

[0045] In a preferred embodiment, when in use, the lithium battery to be welded is placed in the material box 501, and the first motor 504 can drive the unloading roller 502 to rotate counterclockwise, so that the lithium battery that falls into the inner cavity of the unloading trough 503 is discharged from the material box 501 and falls on the surface of the conveyor belt 4 for unloading. At the same time, the first gear 508 can drive the second gear 507 and the cleaning disk 506 to rotate simultaneously to clean the surface of the lithium battery electrode to prevent impurities from forming inclusions at the welding point, thereby reducing the welding strength and reliability of the structure; the lithium battery that falls on the surface of the conveyor belt 4 When transported to the side wall of the first push block 511, the driving disk 514 is driven to rotate by the second motor 513, thereby driving the driving frame 512 and the slider 509 to move back and forth left and right through the eccentric shaft 515, and pushing the lithium battery into the second feeding frame 3 through the first push block 511. Subsequently, the slider 509 moves left to reset, and drives the second tooth plate 520 to move synchronously through the driving frame 512, thereby driving the fourth gear 519 and the third gear 518 to rotate counterclockwise, driving the first tooth plate 517 and the second push block 516 to move forward, pushing the lithium battery forward, and realizing automatic loading.

[0046] Reference Figure 1-Figure 11As shown, in a preferred embodiment, the welding mechanism 6 is installed on the surface of the operating table 1, and the welding mechanism 6 includes a feeding tray 601, an active roller 602 and a laser welding head 610. The feeding tray 601 is symmetrically rotatably installed on the surface of the operating table 1 for storing the nickel strip, and the active roller 602 is symmetrically rotatably installed on the surface of the operating table 1 for conveying the nickel strip. A third motor 603 is symmetrically fixedly installed in the inner cavity of the operating table 1, and the output end of the third motor 603 is fixedly connected to the bottom of the active roller 602 for driving the active roller 602 to rotate. A second slide seat 604 is symmetrically slidably installed on the surface of the operating table 1, and a squeezing roller 605 is rotatably installed on the surface of the second slide seat 604. A first electric telescopic rod 606 is symmetrically fixedly installed on the surface of the operating table 1, and the telescopic end of the first electric telescopic rod 606 is connected to the second The slide 604 is fixedly connected and is used to drive the squeezing roller 605 to approach the active roller 602. A second electric telescopic rod 608 is symmetrically fixedly installed on the surface of the operating table 1. The telescopic end of the second electric telescopic rod 608 is fixedly connected to the first slide 607, and is used to drive the laser welding head 610 to move. When in use, the nickel strip is placed on the surface of the feeding tray 601, and one end of the nickel strip is passed between the squeezing roller 605 and the active roller 602, and penetrates into the inner cavity of the second feeding frame 3. The active roller 602 can be driven to rotate by the third motor 603, and then the squeezing roller 605 is driven to approach the active roller 602 by the first electric telescopic rod 606, and the nickel strip is tightly attached to the surface of the active roller 602. Then, under the action of the active roller 602, the nickel strip can be driven to insert into the inner cavity of the second feeding frame 3 to realize automatic loading.

[0047] Reference Figure 1-Figure 11As shown, in a preferred embodiment, a first slide 607 is symmetrically and slidably installed on the surface of the operating table 1, a cutter 609 is fixedly installed on the side wall of the first slide 607 for cutting the nickel strip, a laser welding head 610 is fixedly installed on the side wall of the first slide 607 for welding the nickel strip to the lithium battery electrode, a plurality of sleeves 612 are installed on the right part of the first slide 607, a first piston 613 is slidably installed in the inner cavity of the sleeve 612, a first spring 614 is installed in the inner cavity of the sleeve 612, one end of the first spring 614 is fixedly connected to the sleeve 612, and the other end of the first spring 614 is fixedly connected to the first piston 613. Under the action of the first spring 614, the first piston 613 is driven to move in the direction of the lithium battery, a second connecting rod 615 is installed on the surface of the first piston 613, and the other end of the second connecting rod 615 A positioning frame 616 is installed to position the nickel strip at the electrode end of the lithium battery. A first heat dissipation hole 617 is opened on the side wall of the sleeve 612 to dissipate heat for the laser welding head 610. The laser welding head 610 can be driven to move toward the lithium battery electrode through the second electric telescopic rod 608, the nickel strip is cut by the cutter 609, and the nickel strip is pressed against the surface of the lithium battery electrode through the positioning frame 616 to ensure the stability of welding. After welding is completed, the second electric telescopic rod 608 is reset to drive the positioning frame 616 to detach from the lithium battery, the first spring 614 is reset to drive the first piston 613 to move, and the air in the sleeve 612 is ejected from the first heat dissipation hole 617 to the surface of the laser welding head 610 for jet heat dissipation, thereby extending the service life of the laser welding head 610 and ensuring the stability of the welding process.

[0048] Reference Figure 1-Figure 11 As shown, in a preferred embodiment, a pressure plate 618 is slidably installed in the inner cavity of the second feeding frame 3 for squeezing and positioning the lithium battery, a second spring 619 is symmetrically installed on the surface of the pressure plate 618, the other end of the second spring 619 is fixedly connected to the second feeding frame 3 for driving the pressure plate 618 to move downward, a plurality of partition blocks 620 are installed at the bottom of the pressure plate 618 for dividing the lithium battery, a first air cavity 621 is provided in the inner cavity of the pressure plate 618, a second piston 622 is slidably installed in the first air cavity 621, a third connecting rod 623 is fixedly installed on the surface of the second piston 622, the other end of the third connecting rod 623 is fixedly connected to the second feeding frame 3, a plurality of second heat dissipation holes 624 are provided on the side wall of the partition block 620, the second heat dissipation holes 624 are connected to the first air cavity 621, and are used to dissipate heat from the surface of the lithium battery.

[0049] In a preferred embodiment, when in use, the nickel strip is placed on the surface of the feeding tray 601, and one end of the nickel strip is passed between the squeezing roller 605 and the active roller 602 and into the inner cavity of the second feeding frame 3. The active roller 602 can be driven to rotate by the third motor 603, and then the squeezing roller 605 is driven to approach the active roller 602 by the first electric telescopic rod 606, so that the nickel strip is tightly attached to the surface of the active roller 602. Then, under the action of the active roller 602, the nickel strip can be driven to insert into the inner cavity of the second feeding frame 3 to achieve automatic loading; the laser welding head 610 can be driven to move toward the lithium battery electrode by the second electric telescopic rod 608, and the nickel strip is pressed against the surface of the lithium battery electrode by the positioning frame 616. At the same time, under the action of the second spring 619, the pressure plate 618 is driven to press against the surface of the lithium battery, and the separator block 620 is used to press the nickel strip against the surface of the lithium battery. The lithium battery is divided to ensure the stability of welding. After welding is completed, the second electric telescopic rod 608 is reset, driving the positioning frame 616 to separate from the lithium battery, and the first spring 614 is reset to drive the first piston 613 to move, so that the air in the sleeve 612 is ejected from the first heat dissipation hole 617 to the surface of the laser welding head 610 for jet heat dissipation, thereby extending the service life of the laser welding head 610 and ensuring the stability of the welding process; then, under the push of the second push block 516, the lithium batteries move forward one by one. At this time, the lithium batteries will squeeze the partition block 620 to move the pressure plate 618 upward. Then, under the action of the second piston 622, the air in the first air cavity 621 is ejected from the second heat dissipation hole 624 to the surface of the lithium battery, so as to dissipate heat from the welded lithium battery, prevent heat accumulation, and reduce the thermal impact of welding on the lithium battery.

[0050] Reference Figure 1-Figure 12 As shown, in a preferred embodiment, a heat dissipation mechanism 7 is installed on the surface of the operating table 1 for dissipating heat from the lithium battery. The heat dissipation mechanism 7 includes a gas tank 701, a support 702 and a sealing plate 704. The support 702 is symmetrically installed on the surface of the operating table 1. The gas tank 701 is installed on the surface of the support 702 for storing inert gas to dissipate heat from the lithium battery. A channel 703 is provided in the inner cavity of the support 702. The gas tank 701 is connected to the channel 703. The sealing plate 704 is slidably installed in the inner cavity of the support 702 for blocking the channel 703. A through hole 705 is provided on the surface of the sealing plate 704. When the sealing plate 704 is located between the channels 703, the channels 703 are blocked and the gas in the gas tank 701 cannot be released; when the through hole 705 of the sealing plate 704 is located between the channels 703, the channels 703 are connected and the gas in the gas tank 701 can be released from the channels 703.

[0051] Reference Figure 1-Figure 12As shown, in a preferred embodiment, a third spring 706 is installed in the inner cavity of the support 702, one end of the third spring 706 is fixedly connected to the blocking plate 704, and is used to drive the blocking plate 704. A first extrusion block 707 is fixedly installed at one end of the blocking plate 704, and a second extrusion block 708 is fixedly installed on the side wall of the first slide 607. The surfaces of the first extrusion block 707 and the second extrusion block 708 are both wedge-shaped. When the second electric telescopic rod 608 drives the first slide 607 to move, the first extrusion block 707 can be driven by the second extrusion block 708 to drive The blocking plate 704 moves toward the inner cavity of the support 702, and a second air cavity 709 is opened in the inner cavity of the second feeding frame 3. An air pipe is connected between the second air cavity 709 and the through hole 705. A plurality of third heat dissipation holes 710 are opened on the side wall of the second air cavity 709 for dissipating heat to the lithium battery. As the blocking plate 704 moves, when the through hole 705 is located between the channels 703, the channels 703 are connected, and the gas in the gas tank 701 enters the second air cavity 709 through the channels 703, and is ejected from the third heat dissipation holes 710 toward the electrode end of the lithium battery to dissipate heat.

[0052] In a preferred embodiment, when in use, under the action of the third spring 706, the blocking plate 704 is driven to move left to block the channel 703. When the second electric telescopic rod 608 drives the first slide 607 to move, the first extrusion block 707 can be driven by the second extrusion block 708 to drive the blocking plate 704 to move toward the inner cavity of the support 702. As the blocking plate 704 moves, when the through hole 705 is located between the channel 703, the channel 703 is connected, and the gas in the gas tank 701 enters the second air cavity 709 through the channel 703, and is ejected from the third heat dissipation hole 710 to the electrode end of the lithium battery to dissipate heat therefrom. With the cooperation of the second heat dissipation hole 624, the inert gas ejected from the gas tank 701 is evenly dispersed on the surface of the lithium battery to improve the heat dissipation effect.

[0053] A lithium battery production process, applicable to the above-mentioned lithium battery production device, comprises the following steps:

[0054] S1: Loading; the first motor 504 drives the unloading roller 502 to rotate counterclockwise, so that the lithium battery dropped into the inner cavity of the unloading trough 503 is discharged from the material box 501 and dropped onto the surface of the conveyor belt 4 for unloading. At the same time, the first gear 508 can drive the second gear 507 and the cleaning disk 506 to rotate simultaneously to clean the surface of the lithium battery electrode;

[0055] S2: welding; the active roller 602 can be driven to rotate by the third motor 603, and then the squeezing roller 605 is driven to approach the active roller 602 by the first electric telescopic rod 606, so that the nickel strip is closely attached to the surface of the active roller 602. Then, under the action of the active roller 602, the nickel strip can be driven to be inserted into the inner cavity of the second feeding frame 3, so as to realize automatic feeding; and the laser welding head 610 is driven to move toward the lithium battery electrode by the second electric telescopic rod 608, the nickel strip is cut by the cutter 609, and the nickel strip is pressed tightly against the surface of the lithium battery electrode by the positioning frame 616, so that the nickel strip can be welded to the surface of the lithium battery electrode by the laser welding head 610;

[0056] S3: Heat dissipation; when the second electric telescopic rod 608 drives the first slide 607 to move, the second extrusion block 708 can drive the first extrusion block 707 to drive the blocking plate 704 to move toward the inner cavity of the support 702. When the through hole 705 is located between the channels 703, the channels 703 are connected, and the gas in the gas tank 701 enters the second air cavity 709 through the channels 703, and is ejected from the third heat dissipation hole 710 to the electrode end of the lithium battery to complete the heat dissipation.

[0057] Specifically, the working principle of the lithium battery production device is as follows: when in use, the lithium battery to be welded is placed in the material box 501, and the first motor 504 can drive the unloading roller 502 to rotate counterclockwise, so that the lithium battery that falls into the inner cavity of the unloading trough 503 is discharged from the material box 501 and falls on the surface of the conveyor belt 4 for unloading. At the same time, the first gear 508 can drive the second gear 507 and the cleaning disk 506 to rotate simultaneously to clean the surface of the lithium battery electrode to prevent impurities from forming inclusions at the welding point, thereby reducing the welding strength and reliability of the structure; falling to the surface of the conveyor belt 4 When the lithium battery is transported to the side wall of the first push block 511, the driving disk 514 is driven to rotate by the second motor 513, thereby driving the driving frame 512 and the slider 509 to move back and forth left and right through the eccentric shaft 515, and pushing the lithium battery into the second feeding frame 3 through the first push block 511. Subsequently, the slider 509 moves left to reset, and drives the second tooth plate 520 to move synchronously through the driving frame 512, thereby driving the fourth gear 519 and the third gear 518 to rotate counterclockwise, driving the first tooth plate 517 and the second push block 516 to move forward, pushing the lithium battery forward, and realizing automatic feeding.

[0058] The nickel strip is placed on the surface of the feeding tray 601, and one end of the nickel strip is passed between the squeezing roller 605 and the active roller 602 and into the inner cavity of the second feeding frame 3. The active roller 602 can be driven to rotate by the third motor 603, and then the squeezing roller 605 is driven to approach the active roller 602 by the first electric telescopic rod 606, so that the nickel strip is pressed against the surface of the active roller 602. Then, under the action of the active roller 602, the nickel strip can be driven to be inserted into the inner cavity of the second feeding frame 3 to realize automatic feeding; the laser welding head 610 can be driven to move toward the lithium battery electrode by the second electric telescopic rod 608, and the nickel strip is pressed against the surface of the lithium battery electrode by the positioning frame 616. At the same time, under the action of the second spring 619, the pressing plate 618 is driven to be pressed against the surface of the lithium battery, and the lithium battery is divided by the partition block 620. , to ensure the stability of welding. After welding is completed, the second electric telescopic rod 608 is reset, driving the positioning frame 616 to separate from the lithium battery, and the first spring 614 is reset, driving the first piston 613 to move, and the air in the sleeve 612 is ejected from the first heat dissipation hole 617 to the surface of the laser welding head 610 for jet heat dissipation, thereby extending the service life of the laser welding head 610 and ensuring the stability of the welding process; then, under the push of the second push block 516, the lithium batteries move forward one by one. At this time, the lithium batteries will squeeze the partition block 620 to move the pressure plate 618 upward. Then, under the action of the second piston 622, the air in the first air cavity 621 is ejected from the second heat dissipation hole 624 to the surface of the lithium battery, thereby dissipating the heat of the lithium battery after welding, preventing heat accumulation, and reducing the thermal impact of welding on the lithium battery.

[0059] Under the action of the third spring 706, the blocking plate 704 is driven to move left to block the channel 703. When the second electric telescopic rod 608 drives the first slide 607 to move, the second extrusion block 708 can drive the first extrusion block 707 to drive the blocking plate 704 to move toward the inner cavity of the support 702. As the blocking plate 704 moves, when the through hole 705 is located between the channel 703, the channel 703 is connected, and the gas in the gas tank 701 enters the second air cavity 709 through the channel 703, and is ejected from the third heat dissipation hole 710 to the electrode end of the lithium battery to dissipate heat. With the cooperation of the second heat dissipation hole 624, the inert gas ejected from the gas tank 701 is evenly dispersed on the surface of the lithium battery to improve the heat dissipation effect.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium battery production device, characterized in that: The invention comprises an operating table (1), a feeding mechanism (5) and a welding mechanism (6); a first feeding frame (2) and a second feeding frame (3) are mounted on the surface of the operating table (1); a conveyor belt (4) is rotatably mounted in the first feeding frame (2); and the feeding mechanism (5) comprises: A material box (501), the material box (501) is fixedly mounted on the surface of the operating table (1) and is used to store lithium batteries; A material discharge roller (502), the material discharge roller (502) being rotatably mounted in the inner cavity of the material box (501), and a plurality of material discharge grooves (503) being formed on the surface of the material discharge roller (502); A first rotating shaft (505), the first rotating shaft (505) being rotatably mounted in the inner cavity of the material box (501), a cleaning disc (506) being symmetrically fixedly mounted on the surface of the first rotating shaft (505) for cleaning the surface of the lithium battery electrode; The welding mechanism (6) is mounted on the surface of the operating table (1), and comprises a feeding tray (601), an active roller (602) and a laser welding head (610); the feeding tray (601) is symmetrically rotatably mounted on the surface of the operating table (1) and is used to store the nickel strip; the active roller (602) is symmetrically rotatably mounted on the surface of the operating table (1) and is used to convey the nickel strip; a first slide seat (607) is symmetrically slidably mounted on the surface of the operating table (1), and a laser welding head (610) is fixedly mounted on the side wall of the first slide seat (607); A first motor (504) is fixedly mounted on the side wall of the material box (501); an output end of the first motor (504) is fixedly connected to one end of a material discharge roller (502); a first gear (508) is fixedly mounted on the other end of the material discharge roller (502); a second gear (507) is fixedly mounted on one end of the first rotating shaft (505); and the first gear (508) is meshed with the second gear (507); A slider (509) is slidably mounted in the inner cavity of the operating table (1), a first push rod (510) is fixedly mounted on the side wall of the slider (509), a first push block (511) is fixedly mounted on the other end of the first push rod (510) and is used to push the lithium battery in the first feeding frame (2) into the second feeding frame (3), a driving frame (512) is fixedly mounted on the bottom of the slider (509), a second motor (513) is fixedly mounted on the inner wall of the operating table (1), a driving disk (514) is fixedly mounted on the output end of the second motor (513), an eccentric shaft (515) is fixedly mounted on the surface of the driving disk (514), and the eccentric shaft (515) is plugged into the inner cavity of the driving frame (512) and is used to drive the slider (509) to reciprocate left and right; A second push block (516) is slidably mounted in the second feeding frame (3), a first tooth plate (517) is fixedly mounted at the bottom of the second push block (516), a third gear (518) is rotatably mounted in the inner cavity of the second feeding frame (3), the third gear (518) is meshed with the first tooth plate (517), a fourth gear (519) is fixedly mounted at the lower part of the third gear (518) via a short shaft, a second tooth plate (520) is slidably mounted in the inner cavity of the operating table (1), the second tooth plate (520) is meshed with the fourth gear (519), and a first connecting rod (521) is connected between the second tooth plate (520) and the driving frame (512).

2. A lithium battery production device according to claim 1, characterized in that: A third motor (603) is symmetrically fixedly mounted in the inner cavity of the operating table (1); the output end of the third motor (603) is fixedly connected to the bottom of the active roller (602); a second slide seat (604) is symmetrically slidably mounted on the surface of the operating table (1); a squeezing roller (605) is rotatably mounted on the surface of the second slide seat (604); a first electric telescopic rod (606) is symmetrically fixedly mounted on the surface of the operating table (1); a telescopic end of the first electric telescopic rod (606) is fixedly connected to the second slide seat (604); a second electric telescopic rod (608) is symmetrically fixedly mounted on the surface of the operating table (1); a telescopic end of the second electric telescopic rod (608) is fixedly connected to the first slide seat (607).

3. A lithium battery production device according to claim 2, characterized in that: A cutter (609) is fixedly mounted on the side wall of the first slide (607) for cutting the nickel strip. A plurality of sleeves (612) are mounted on the right side of the first slide (607). A first piston (613) is slidably mounted in the inner cavity of the sleeve (612). A first spring (614) is mounted in the inner cavity of the sleeve (612). One end of the first spring (614) is fixedly connected to the sleeve (612), and the other end of the first spring (614) is fixedly connected to the first piston (613). A second connecting rod (615) is mounted on the surface of the first piston (613). A positioning frame (616) is mounted on the other end of the second connecting rod (615) for positioning the nickel strip at the electrode end of the lithium battery. A first heat dissipation hole (617) is opened on the side wall of the sleeve (612) for dissipating heat from the laser welding head (610).

4. A lithium battery production device according to claim 3, characterized in that: A pressure plate (618) is slidably mounted in the inner cavity of the second feeding frame (3) for squeezing and positioning the lithium battery; a second spring (619) is symmetrically mounted on the surface of the pressure plate (618); the other end of the second spring (619) is fixedly connected to the second feeding frame (3) for driving the pressure plate (618) to move downward; a plurality of partition blocks (620) are mounted at the bottom of the pressure plate (618); a first air cavity (621) is provided in the inner cavity of the pressure plate (618); a second piston (622) is slidably mounted in the first air cavity (621); a third connecting rod (623) is fixedly mounted on the surface of the second piston (622); the other end of the third connecting rod (623) is fixedly connected to the second feeding frame (3); a plurality of second heat dissipation holes (624) are provided on the side wall of the partition block (620); the second heat dissipation holes (624) are in conduction with the first air cavity (621).

5. A lithium battery production device according to claim 4, characterized in that: The operating table (1) is provided with a heat dissipation mechanism (7) on its surface for dissipating heat from a lithium battery. The heat dissipation mechanism (7) comprises a gas tank (701), a support (702) and a blocking plate (704). The support (702) is symmetrically provided on the surface of the operating table (1). The support (702) is provided with a gas tank (701) on its surface for storing an inert gas. The support (702) has an inner cavity provided with a channel (703). The gas tank (701) is in communication with the channel (703). The blocking plate (704) is slidably provided in the inner cavity of the support (702) for blocking the channel (703).

6. A lithium battery production device according to claim 5, characterized in that: A through hole (705) is provided on the surface of the blocking plate (704); a third spring (706) is installed in the inner cavity of the support (702); one end of the third spring (706) is fixedly connected to the blocking plate (704) for driving the blocking plate (704); a first extrusion block (707) is fixedly installed on one end of the blocking plate (704); a second extrusion block (708) is fixedly installed on the side wall of the first slide seat (607); the surfaces of the first extrusion block (707) and the second extrusion block (708) are both wedge-shaped; a second air cavity (709) is provided in the inner cavity of the second feeding frame (3); an air pipe is connected between the second air cavity (709) and the through hole (705); and a plurality of third heat dissipation holes (710) are provided on the side wall of the second air cavity (709) for dissipating heat from the lithium battery.

7. A lithium battery production process, applicable to a lithium battery production device as claimed in claim 6, characterized in that: The steps include: S1: loading; the first motor (504) drives the unloading roller (502) to rotate counterclockwise, so that the lithium batteries dropped into the inner cavity of the unloading chute (503) are discharged from the material box (501) and dropped onto the surface of the conveyor belt (4) for unloading; at the same time, the first gear (508) can drive the second gear (507) and the cleaning disk (506) to rotate simultaneously, so as to clean the surface of the lithium battery electrode; S2: welding; the active roller (602) can be driven to rotate by the third motor (603), and then the squeezing roller (605) can be driven to approach the active roller (602) by the first electric telescopic rod (606), so that the nickel strip is closely attached to the surface of the active roller (602). Then, under the action of the active roller (602), the nickel strip can be driven to insert into the inner cavity of the second feeding frame (3), so as to realize automatic feeding; and the laser welding head (610) is driven to move toward the lithium battery electrode by the second electric telescopic rod (608), the nickel strip is cut by the cutter (609), and the nickel strip is pressed tightly against the surface of the lithium battery electrode by the positioning frame (616), so that the nickel strip can be welded to the surface of the lithium battery electrode by the laser welding head (610); S3: heat dissipation; when the second electric telescopic rod (608) drives the first sliding seat (607) to move, the second extrusion block (708) can drive the first extrusion block (707) to drive the blocking plate (704) to move toward the inner cavity of the support (702). When the through hole (705) is located between the channels (703), the channels (703) are connected, and the gas in the gas tank (701) enters the second gas cavity (709) through the channels (703) and is ejected from the third heat dissipation hole (710) toward the electrode end of the lithium battery, thereby completing heat dissipation.

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