Full-automatic lithium battery laser welding machine

Abstract

The utility model discloses a full-automatic lithium battery laser welding machine, and relates to the technical field of lithium battery production. The laser welding device comprises a base, a conveying belt is mounted at the top of the base, an arch support is fixedly connected to the top of the base and mounted above the conveying belt, a mounting plate is mounted in the arch support, laser welding instruments are symmetrically and fixedly connected to the bottom of the mounting plate, and T-shaped sliding rods are symmetrically and fixedly connected to the top of the mounting plate. When the conveying belt is started to convey the battery pack and the pole plate into the arch-shaped support, the monitoring assembly is used for scanning and analyzing the placement positions of the battery pack and the pole plate, an alarm prompt tone is sent to a worker according to the actual situation, and then the driving motor is started to drive the eccentric wheel and the mounting plate to collide in a reciprocating mode; meanwhile, the mounting plate drives the laser welding instrument to get close to the battery pack and the pole piece and is matched with the positioning assembly to extrude and fix the pole piece, and then the laser welding instrument is started to complete welding of the pole piece and the battery pack.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery production, and in particular to a fully automatic lithium battery laser welding machine. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. Due to the extremely active chemical properties of lithium metal, the processing, storage, use and environmental requirements of lithium metal are very high. With the development of science and technology, lithium batteries have now become mainstream.

[0003] The lithium battery tab refers to the part that connects the battery to external devices. Its main function is to connect the positive and negative poles of the battery to the outside world, build circuits, and realize the transmission and conversion of electrical energy. When processing lithium batteries, a laser welding machine is used to weld the tab to the battery.

[0004] When existing laser welding technology is used in lithium battery production, the plates and battery packs are mostly manually placed on the bottom of the laser welding machine for alignment, and then the laser welding machine is started for welding. This welding method is easily affected by human factors, resulting in inaccurate welding points and reducing the welding efficiency of the device. Utility Model Content

[0005] The purpose of this application is to solve the problem that the existing welding method is easily affected by human factors, resulting in inaccurate welding points and reducing the welding efficiency of the device. This application provides a fully automatic lithium battery laser welding machine.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A fully automatic lithium battery laser welding machine comprises a base, a conveyor belt is installed on the top of the base, and an arch bracket is fixedly connected to the top of the base, the arch bracket is installed above the conveyor belt, a mounting plate is installed inside the arch bracket, a laser welding instrument is symmetrically fixedly connected to the bottom of the mounting plate, and a T-shaped slide bar is symmetrically fixedly connected to the top of the mounting plate, one end of the T-shaped slide bar passes through the arch bracket and is sleeved with a rebound piece, a socket is opened on the top of the arch bracket, and an eccentric wheel is rotatably connected to the top of the arch bracket, one end of the arch bracket is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to the eccentric wheel, one end of the mounting plate passes through the socket and forms a conflict with one end of the eccentric wheel, a monitoring component is installed at one end of the arch bracket, and a positioning component is installed at the bottom of the mounting plate.

[0008] By adopting the above technical scheme, by setting up the coordinated use of the monitoring component and the positioning component, it is convenient to use the monitoring component to scan and analyze the placement of the battery pack and the electrode when the conveyor belt is started to transport the battery pack and the electrode to the inside of the arch bracket, and send an alarm prompt sound to the staff according to the actual situation, so as to remind the staff to adjust the placement of the electrode in time, and then start the drive motor to drive the eccentric wheel and the mounting plate to form a reciprocating collision, and at the same time, the mounting plate drives the laser welding instrument to move closer to the battery pack and the electrode, and cooperates with the positioning component to squeeze and fix the electrode, and then start the laser welding instrument to complete the welding of the electrode and the battery pack, so that the reciprocating test of the battery pack and the electrode is convenient for testing the fully automatic welding of the battery pack and the electrode, which effectively reduces the problem of inaccurate welding points caused by human factors and improves the welding efficiency of the device.

[0009] Furthermore, the resilient member comprises a reciprocating spring sleeved on one end of the T-shaped sliding rod, and the reciprocating spring is installed between the T-shaped sliding rod and the arch bracket.

[0010] By adopting the above technical solution, by setting the reciprocating spring, the T-shaped slide bar and the mounting plate for use in conjunction, it is convenient to start the drive motor to drive the eccentric wheel to disengage from the interference with one end of the mounting plate, so that the reciprocating spring can rebound and push out the T-shaped slide bar, and drive the mounting plate to pull the laser welding instrument away from the battery pack and the pole piece, thereby improving the practicality of the device.

[0011] Furthermore, the monitoring component includes an extension plate fixedly connected to one end of the arch bracket, the bottom of the extension plate is symmetrically fixedly connected to a laser scanner, the top of the extension plate is fixedly connected to a buzzer alarm, and one side of the arch bracket is fixedly connected to a controller, and the controller is electrically connected to the laser scanner and the buzzer alarm.

[0012] By adopting the above technical solution, by setting up the coordinated use of the controller with the laser scanner and the buzzer alarm, it is convenient to use the laser scanner to perform image scanning and analysis on the battery packs and pole pieces transported by the conveyor belt to the inside of the arch bracket, and use the buzzer alarm to promptly notify the staff of abnormal positions of the battery packs and pole pieces, thereby improving the practicality of the device.

[0013] Furthermore, a rubber pad is fixedly connected to the top of the mounting plate, and the rubber pad is in contact with one end of the eccentric wheel.

[0014] By adopting the above technical solution and arranging the rubber pad for use with the eccentric wheel, the wear between the eccentric wheel and the mounting plate is effectively reduced.

[0015] Furthermore, the top cover of the base is provided with an arched mounting frame, the top of the arched mounting frame is symmetrically provided with conveying slots, the top of the arched mounting frame is rotatably connected to four groups of guide rollers, and the four groups of guide rollers are symmetrically arranged in pairs on the top of the conveying slots.

[0016] By adopting the above technical solution, by setting up the arched mounting frame and using it in conjunction with the conveying trough and guide rollers, it is convenient to use two sets of guide rollers to roll and guide the battery pack placed on the top of the conveyor belt, thereby effectively improving the stability of the battery pack when moving on the top of the conveyor belt.

[0017] Furthermore, one end of the base is evenly rotatably connected to a plurality of support rollers, and the support rollers are inserted into the inner top of the conveyor belt.

[0018] By adopting the above technical solution and by arranging the supporting rollers and the conveyor belt for use in conjunction with each other, the supporting strength and stability of the conveyor belt for the battery pack are effectively improved.

[0019] Furthermore, the positioning assembly includes a fixing block symmetrically fixed at one end of the laser welding apparatus, and a pressing block is installed at the bottom of the fixing block.

[0020] By adopting the above technical solution, by setting up the coordinated use of the mounting plate and the pressing block, it is convenient to start the drive motor to drive the eccentric wheel to push the mounting plate to move downward along the length direction of the T-shaped slide bar, so that the mounting plate drives the pressing block to squeeze the pole piece and the battery pack to fit tightly, thereby improving the stability of the pole piece during welding.

[0021] Furthermore, a receiving slot is provided inside the fixing block, the top end of the pressing block is slidably connected inside the receiving slot, and a plurality of receiving springs are evenly and fixedly connected inside the receiving slot.

[0022] By adopting the above technical solution, by setting up the coordinated use of the storage slide groove and the storage spring, when the driving mounting plate drives the pressing block to extrude the pole piece, the storage spring is subjected to the extrusion force of the pressing block to produce a contraction deformation, and at the same time drives one end of the pressing block to retract into the interior of the storage slide groove, thereby effectively reducing the situation where the mounting plate drives the pressing block to puncture the battery pack, thereby improving the safety of the device.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. By setting up the coordinated use of the monitoring component and the positioning component, it is convenient to use the monitoring component to scan and analyze the placement of the battery pack and the electrode when the conveyor belt is started to transport the battery pack and the electrode to the inside of the arch bracket, and send an alarm prompt sound to the staff according to the actual situation, so as to remind the staff to adjust the placement of the electrode in time, and then start the drive motor to drive the eccentric wheel and the mounting plate to form a reciprocating collision, and at the same time, the mounting plate drives the laser welding instrument to move closer to the battery pack and the electrode, and cooperates with the positioning component to squeeze and fix the electrode, and then start the laser welding instrument to complete the welding of the electrode and the battery pack, so that the reciprocating test of the battery pack and the electrode is convenient for automatic welding, which effectively reduces the problem of inaccurate welding points caused by human factors and improves the welding efficiency of the device.

[0025] 2. By setting up the matching use of the mounting plate and the pressing block, when the drive motor is started to drive the eccentric wheel to push the mounting plate to move downward along the length direction of the T-shaped slide bar, the mounting plate drives the pressing block to squeeze the pole piece and the battery pack to fit tightly, thereby improving the stability of the pole piece during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0027] Figure 2 It is a schematic diagram of the internal structure of the arch support in this application.

[0028] Figure 3 It is a schematic diagram of the internal structure of the storage chute in this application.

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the support roller in this application.

[0030] Description of reference numerals:

[0031] 1. Base; 2. Conveyor belt; 3. Arch bracket; 4. Mounting plate; 6. Laser welding instrument; 7. T-shaped slide bar; 8. Socket; 9. Eccentric wheel; 10. Driving motor; 11. Reciprocating spring; 12. Extension plate; 13. Laser scanner; 14. Buzzer alarm; 15. Controller; 17. Rubber pad; 18. Arch mounting frame; 19. Conveying trough; 20. Guide roller; 21. Support roller; 22. Fixing block; 23. Pressing block; 24. Storage slide; 25. Storage spring. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a fully automatic lithium battery laser welding machine.

[0034] Reference Figure 1-Figure 3 , a fully automatic lithium battery laser welding machine, including a base 1, a conveyor belt 2 is installed on the top of the base 1, and an arch bracket 3 is fixedly connected to the top of the base 1, the arch bracket 3 is installed above the conveyor belt 2, a mounting plate 4 is installed inside the arch bracket 3, a laser welding instrument 6 is symmetrically fixedly connected to the bottom of the mounting plate 4, and a T-shaped slide bar 7 is symmetrically fixedly connected to the top of the mounting plate 4, one end of the T-shaped slide bar 7 passes through the arch bracket 3 and is sleeved with a rebound piece, a socket 8 is opened on the top of the arch bracket 3, and an eccentric wheel 9 is rotatably connected to the top of the arch bracket 3, one end of the arch bracket 3 is fixedly connected to a driving motor 10, the output end of the driving motor 10 is fixedly connected to the eccentric wheel 9, one end of the mounting plate 4 passes through the socket 8 and forms a conflict with one end of the eccentric wheel 9, one end of the arch bracket 3 is installed with a monitoring component, and a positioning component is installed at the bottom of the mounting plate 4;

[0035] The resilient member includes a reciprocating spring 11 sleeved on one end of the T-shaped slide bar 7, and the reciprocating spring 11 is installed between the T-shaped slide bar 7 and the arch bracket 3;

[0036] In addition, the monitoring component includes an extension plate 12 fixedly connected to one end of the arch support 3, a laser scanner 13 is symmetrically fixedly connected to the bottom of the extension plate 12, a buzzer alarm 14 is fixedly connected to the top of the extension plate 12, and a controller 15 is fixedly connected to one side of the arch support 3, and the controller 15 is electrically connected to the laser scanner 13 and the buzzer alarm 14.

[0037] Furthermore, the positioning assembly includes a fixing block 22 symmetrically fixed to one end of the laser welding apparatus 6, and a pressing block 23 is installed at the bottom of the fixing block 22;

[0038] Furthermore, a receiving slot 24 is provided inside the fixing block 22 , and the top end of the pressing block 23 is slidably connected inside the receiving slot 24 . A plurality of receiving springs 25 are evenly and fixedly connected inside the receiving slot 24 .

[0039] When in use, the electrode plate is first placed on the pole of the battery pack, and then the battery pack and the electrode plate are transported to the inside of the arch support 3 by starting the conveyor belt 2. At the same time, the laser scanner 13 is started to scan the battery pack and the electrode plate passing under the extension plate 12, and the scan data is transmitted to the controller 15. The placement position of the battery pack and the electrode plate is analyzed by the controller 15. When the placement of the electrode plate is deviated, the controller 15 controls the buzzer alarm 14 to send an alarm prompt sound to the staff, so as to remind the staff to adjust the placement position of the electrode plate in time.

[0040] Then, when the conveyor belt 2 drives the battery pack and the pole piece to move to the bottom of the mounting plate 4, the driving motor 10 is started to drive the eccentric wheel 9 to rotate, and when the eccentric wheel 9 rotates one circle, one end of the eccentric wheel 9 collides with the mounting plate 4, and at the same time, the eccentric wheel 9 pushes the mounting plate 4 to drive the laser welding device 6 to move downward along the length direction of the reciprocating spring 11, and drives the T-shaped slide bar 7 to squeeze the reciprocating spring 11, so that the reciprocating spring 11 produces a contraction deformation, and at the same time, the laser welding device 6 drives the pressing block 23 and the battery The pole piece placed on the top of the battery pack is fitted, and then as the mounting plate 4 continues to move downward along the length direction of the T-shaped slide bar 7, the mounting plate 4 drives the pressing block 23 to form a conflict with the pole piece, and the pressing block 23 is forced to press the storage spring 25 upward along the inner wall of the storage slide groove 24, and at the same time, the storage spring 25 is elastically deformed, and the pressing block 23 is ejected by the rebound of the storage spring 25, so that the pressing block 23 cooperates with the battery pack to form a fixed clamp for the pole piece, and then the welding of the pole piece and the battery pack is completed by starting the laser welding device 6;

[0041] Then, after the laser welding device 6 completes welding, the driving motor 10 drives the eccentric wheel 9 to rotate until it is out of contact with the mounting plate 4, and at the same time, the mounting plate 4 releases the downward pulling force on the T-shaped slide bar 7, so that the reciprocating spring 11 produces a rebound deformation, and rebounds and pushes out the mounting plate 4 along the length direction of the T-shaped slide bar 7, so that the mounting plate 4 drives the pressing block 23 to move upward along the length direction of the T-shaped slide bar 7, and at the same time, the pressing block 23 is out of contact with the battery pack and the pole piece. Then, the welded battery pack is transported away from the arch bracket 3 by starting the conveyor belt 2, so that the reciprocating welding of the battery pack and the pole piece is facilitated, which effectively reduces the problem of inaccurate welding points caused by human factors and improves the welding efficiency of the device.

[0042] Reference Figure 1 and Figure 2 A rubber pad 17 is fixedly connected to the top of the mounting plate 4 , and the rubber pad 17 is in contact with one end of the eccentric wheel 9 .

[0043] During use, when the drive motor 10 is started to drive the eccentric wheel 9 to push the mounting plate 4 to move along the length direction of the T-shaped slide bar 7, the eccentric wheel 9 forms a flexible resistance with the mounting plate 4 through the rubber pad 17, which effectively reduces the noise generated by the collision between the eccentric wheel 9 and the mounting plate 4, and at the same time reduces the wear between the eccentric wheel 9 and the mounting plate 4.

[0044] Reference Figure 1 and Figure 4 The top cover of the base 1 is provided with an arched mounting frame 18, and a conveying slot 19 is symmetrically opened on the top of the arched mounting frame 18. Four groups of guide rollers 20 are rotatably connected to the top of the arched mounting frame 18, and the four groups of guide rollers 20 are symmetrically arranged on the top of the conveying slot 19 in pairs.

[0045] When in use, the battery pack is first passed through the conveying slot 19 and placed on the top of the conveyor belt 2, and then the conveyor belt 2 is started to drive the battery pack to move along the length direction of the conveying slot 19 to the bottom of the arch bracket 3. At the same time, when the battery pack moves along the length direction of the conveying slot 19, the two ends of the battery pack form a rolling conflict with the guide rollers 20, so that the two sets of guide rollers 20 are used to form a rolling guidance for the battery pack, thereby improving the stability of the battery pack when it moves on the top of the conveyor belt 2.

[0046] Reference Figure 1 and Figure 4 One end of the base 1 is evenly rotatably connected to a plurality of support rollers 21 , and the support rollers 21 are inserted into the inner top of the conveyor belt 2 .

[0047] During use, when the traction battery pack is placed on the top of the conveyor belt 2, the battery pack squeezes the top of the conveyor belt 2 and forms a rolling conflict with the support roller 21, so that the support roller 21 supports the battery pack on the top of the conveyor belt 2, effectively improving the supporting strength of the conveyor belt 2.

[0048] The implementation principle of a fully automatic lithium battery laser welding machine in this embodiment is as follows: first, the pole plate is placed on the pole of the battery pack, and then the battery pack is placed on the top of the conveyor belt 2 through the conveying slot 19, and the conveyor belt 2 is started to drive the battery pack to form a rolling conflict with the guide roller 20, and move to the bottom of the arch support 3 along the length direction of the conveying slot 19, and then the laser scanner 13 is started to scan the battery pack and the pole piece passing under the extension plate 12, and the scan data is transmitted to the controller 15, and the placement position of the battery pack and the pole piece is analyzed by the controller 15. When the placement of the pole piece deviates, the controller 15 controls the buzzer alarm 14 to send an alarm prompt sound to the staff;

[0049] Then, when the conveyor belt 2 drives the battery pack and the pole piece to move to the bottom of the mounting plate 4, the driving motor 10 is started to drive the eccentric wheel 9 to rotate, and when the eccentric wheel 9 rotates one circle, one end of the eccentric wheel 9 collides with the mounting plate 4, and at the same time, the eccentric wheel 9 pushes the mounting plate 4 to drive the laser welding device 6 to move downward along the length direction of the reciprocating spring 11, and drives the T-shaped slide bar 7 to squeeze the reciprocating spring 11, so that the reciprocating spring 11 contracts and deforms, and at the same time, the laser welding device 6 drives the pressing block 23 and the battery The pole piece placed on the top of the battery pack is fitted, and then as the mounting plate 4 continues to move downward along the length direction of the T-shaped slide bar 7, the mounting plate 4 drives the pressing block 23 to form a conflict with the pole piece, and the pressing block 23 is forced to press the storage spring 25 upward along the inner wall of the storage slide groove 24, and at the same time, the storage spring 25 is elastically deformed, and the pressing block 23 is ejected by the rebound of the storage spring 25, so that the pressing block 23 cooperates with the battery pack to form a fixed clamp for the pole piece, and then the welding of the pole piece and the battery pack is completed by starting the laser welding device 6;

[0050] Then, after the laser welding device 6 completes welding, the driving motor 10 drives the eccentric wheel 9 to rotate until it is out of contact with the mounting plate 4, and at the same time, the mounting plate 4 releases the downward pulling force on the T-shaped slide bar 7, so that the reciprocating spring 11 rebounds and rebounds along the length direction of the T-shaped slide bar 7 to push out the mounting plate 4, so that the mounting plate 4 drives the pressing block 23 to move upward along the length direction of the T-shaped slide bar 7, and at the same time, the pressing block 23 is out of contact with the battery pack and the pole piece, and then the welded battery pack is transported away from the arch bracket 3 by starting the conveyor belt 2.

Claims

1. A fully automatic lithium battery laser welding machine, comprising a base (1), characterized in that: A conveyor belt (2) is installed on the top of the base (1), and an arch bracket (3) is fixedly connected to the top of the base (1), the arch bracket (3) is installed above the conveyor belt (2), a mounting plate (4) is installed inside the arch bracket (3), a laser welding device (6) is symmetrically fixedly connected to the bottom of the mounting plate (4), and a T-shaped slide bar (7) is symmetrically fixedly connected to the top of the mounting plate (4), one end of the T-shaped slide bar (7) passes through the arch bracket (3) and is sleeved with a rebound member, A socket (8) is provided at the top of the arch support (3), and an eccentric wheel (9) is rotatably connected to the top of the arch support (3); a drive motor (10) is fixedly connected to one end of the arch support (3); an output end of the drive motor (10) is fixedly connected to the eccentric wheel (9); one end of the mounting plate (4) passes through the socket (8) and contacts one end of the eccentric wheel (9); a monitoring component is installed at one end of the arch support (3); and a positioning component is installed at the bottom of the mounting plate (4).

2. A fully automatic lithium battery laser welding machine according to claim 1, characterized in that: The resilient member comprises a reciprocating spring (11) sleeved on one end of the T-shaped sliding rod (7), and the reciprocating spring (11) is installed between the T-shaped sliding rod (7) and the arch bracket (3).

3. The fully automatic lithium battery laser welding machine according to claim 1, characterized in that: The monitoring component comprises an extension plate (12) fixedly connected to one end of an arch support (3); a laser scanner (13) is symmetrically fixedly connected to the bottom of the extension plate (12); a buzzer alarm (14) is fixedly connected to the top of the extension plate (12); a controller (15) is fixedly connected to one side of the arch support (3); and the controller (15) is electrically connected to the laser scanner (13) and the buzzer alarm (14).

4. The fully automatic lithium battery laser welding machine according to claim 1, characterized in that: A rubber pad (17) is fixedly connected to the top of the mounting plate (4), and the rubber pad (17) is in contact with one end of the eccentric wheel (9).

5. The fully automatic lithium battery laser welding machine according to claim 1, characterized in that: The top cover of the base (1) is provided with an arched mounting frame (18), the top of the arched mounting frame (18) is symmetrically provided with a conveying slot (19), the top of the arched mounting frame (18) is rotatably connected to four groups of guide rollers (20), and the four groups of guide rollers (20) are symmetrically arranged in pairs on the top of the conveying slot (19).

6. The fully automatic lithium battery laser welding machine according to claim 1, characterized in that: One end of the base (1) is evenly rotatably connected to a plurality of support rollers (21), and the support rollers (21) are inserted into the inner top of the conveyor belt (2).

7. The fully automatic lithium battery laser welding machine according to claim 1, characterized in that: The positioning assembly comprises a fixing block (22) symmetrically fixed to one end of the laser welding apparatus (6), and a pressing block (23) is installed at the bottom of the fixing block (22).

8. The fully automatic lithium battery laser welding machine according to claim 7, characterized in that: A receiving slide groove (24) is provided inside the fixed block (22), the top end of the pressing block (23) is slidably connected inside the receiving slide groove (24), and a plurality of receiving springs (25) are evenly and fixedly connected inside the receiving slide groove (24).

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