Efficient welding device for lithium battery

Abstract

The utility model relates to the field of lithium battery tab welding, and discloses an efficient welding device for a lithium battery. Supporting sleeves are fixedly arranged on the two sides of the outer surface of the base, supporting plates are movably arranged in the supporting sleeves, a top plate is fixedly arranged at the top ends of the supporting plates, fixing plates are arranged on the outer surfaces of the two symmetrical sides of the top plate, bolts are in threaded connection with the surfaces of the fixing plates, and a driving motor is connected with the bottom end of one fixing plate. The output end of the driving motor is connected with a lead screw, the surface of the lead screw is in threaded connection with a sliding block, the welding machine is arranged on the surface of the sliding block, the other end of the lead screw is connected with the other fixing plate, the welding machine can be changed to be located at different positions on the same straight line through the arranged lead screw assembly, and welding work can be conveniently conducted on different welding point positions; the fixing plate can provide a stable working environment for the device, the arranged driving motor is started to enable the sliding block and the welding machine to slide on the surface of the lead screw, and the assembly can be fixed to the surface of the top plate through the arranged bolt.

Description

Technical Field

[0001] The present application belongs to the technical field of lithium battery tab welding, and specifically relates to a lithium battery high-efficiency welding device. Background Art

[0002] The performance parameters of ultra-thin batteries mainly include electromotive force, capacity, specific energy and resistance. Electromotive force is equal to the work done by the non-electrostatic force (chemical force) of the ultra-thin battery when a unit positive charge moves from the negative electrode to the positive electrode through the ultra-thin battery. Electromotive force depends on the chemical properties of the electrode material and has nothing to do with the size of the ultra-thin battery. The total amount of charge that the ultra-thin battery can output is the capacity of the battery, usually in ampere-hours. The existing lithium battery tab welding device has a reduced efficiency in welding lithium batteries due to the inconvenience of adjusting the height of the welding device when welding lithium battery tabs of different specifications. In particular, when welding lithium batteries, the lithium battery position is easily offset, resulting in a decrease in the accuracy of the welding work.

[0003] For example, the publication number CN216177764U discloses an efficient welding device for ultra-thin lithium battery tabs. In view of the problems of low efficiency and low precision in welding the lithium battery tabs, the following scheme is proposed, which includes a bearing frame, the bearing frame also includes multiple bases, the multiple bases are fixed to the bottom side wall of the bearing frame, two symmetrically distributed support sleeves are fixed to the outer side wall of the bearing frame, the two support sleeves are slidably connected with support plates, the top side walls of the two support plates are jointly fixed with a top plate, and the bottom side wall of the top plate is fixed with a welding machine; a rotating shaft, the rotating shaft is rotatably connected to the inner side wall of the bearing frame; in the utility model, the positioning ring follows the bearing seat b to move synchronously until the positioning plate contacts the surface of the lithium battery, that is, the positioning and clamping effect of the lithium battery is completed efficiently and stably, which can effectively avoid the position offset when welding the lithium battery and the tab, and then improve the qualified rate when welding the lithium battery and the tab.

[0004] However, in this application, the welding points of the lithium battery welding machine are fixed, and lithium batteries with welding points at different positions on the same straight line cannot be welded at different positions, thereby reducing the efficiency of the welding operation. Utility Model Content

[0005] The purpose of the present application is to provide a lithium battery efficient welding device in order to solve the above-mentioned problem of different welding points on the same straight line.

[0006] The technical solution adopted in the present application is as follows: a high-efficiency lithium battery welding device, comprising a base, support sleeves are fixedly provided on both sides of the outer surface of the base, a support plate is movably provided inside the support sleeve, a top plate is fixedly provided on the top of the support plate, and fixing plates are provided on the symmetrical outer surfaces of the top plate, and bolts are threadedly connected to the surface of the fixing plate, the bottom end of one of the fixing plates is connected to a driving motor, the output end of the driving motor is connected to a screw rod, the surface of the screw rod is threadedly connected to a slider, a welding machine is provided on the surface of the slider, and the other end of the screw rod is connected to another fixed plate.

[0007] By adopting the above technical solution, the screw rod assembly can be used to change the different positions of the welding machine on the same straight line, so as to facilitate welding work on different welding points, and the fixed plate can provide a stable working environment for the setting. The driving motor is started to make the slider and the welding machine slide on the surface of the screw rod, and the bolts can fix the assembly on the surface of the top plate.

[0008] In a preferred embodiment, a rotating rod is movably provided inside the base, two gears are provided on the inner surface of the base, and a rocker is connected to the outer extended end of the rotating rod.

[0009] By adopting the above technical solution, the staff can hold the rocker and rotate it, thereby driving the rotating rod and gear 1 to rotate, and then adjust the equipment through the cooperation of other components to facilitate welding.

[0010] In a preferred embodiment, two fixed blocks are fixedly provided on one side of the top plate, the internal threads of the fixed blocks are connected with a threaded rod, a limiting ring is fixedly provided on the top of the threaded rod, the threaded rod is provided with gear 2 on the inner surface of the base, and the surface of gear 2 is meshed with gear 1.

[0011] By adopting the above technical solution, through the meshing of gear two and gear one, when they rotate, the top plate can be driven to adjust in the vertical plane through the threaded rod and the fixed block connected thereto, and can be adjusted according to lithium batteries of different heights, and the set limit ring can limit the threaded rod.

[0012] In a preferred embodiment, a bearing groove is provided in the middle of the surface of the base, and a positioning ring is movably provided beside the bearing groove.

[0013] By adopting the above technical solution, the bearing groove arranged on the surface of the base is used to place the lithium battery to be welded, and the positioning ring is arranged to fix it.

[0014] In a preferred embodiment, a mounting seat is fixedly connected to the other side surface of the positioning ring, and the mounting seat is placed in a slide groove opened on the surface of the base. A connecting rod is movably connected to the surface of the mounting seat, and the other end of the connecting rod is connected to the connecting seat on the surface of the support plate.

[0015] By adopting the above technical solution, when the support plate moves, the connecting seat, connecting rod and mounting seat will also move accordingly, prompting the positioning ring connected to the mounting seat to perform a clamping movement, thereby facilitating the fixation of the lithium battery to be welded.

[0016] In a preferred embodiment, four bases are fixedly connected to the bottom end of the base.

[0017] By adopting the above technical solution, the four bases can keep the equipment away from the ground, provide support for the equipment and increase the ventilation effect of the equipment.

[0018] In a preferred embodiment, the surfaces of the base, the support sleeve and the top plate are all coated with a fire retardant.

[0019] By adopting the above technical solution, high temperature will be generated during lithium battery welding, and applying fire retardant on the surface of the base, support sleeve and top plate can effectively avoid fire hazards.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0021] In the present application, the screw rod assembly is set up to change the different positions of the welding machine on the same straight line, so as to facilitate welding work on different welding points, and the set fixing plate can provide a stable working environment for the setting. The set driving motor is started to make the slider and the welding machine slide on the surface of the screw rod, and the set bolts can fix the assembly on the surface of the top plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the lithium battery welding device of this application;

[0023] Figure 2 This is a schematic diagram of the back structure of the lithium battery welding device in this application;

[0024] Figure 3 This is a schematic diagram of the adjustment structure of the welding machine of the lithium battery welding device in this application;

[0025] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the lithium battery welding device in this application.

[0026] Markings in the figure: 1. base; 2. support sleeve; 3. top plate; 4. welding machine; 5. bearing groove; 6. positioning ring; 7. support plate; 8. threaded rod; 9. rotating rod; 10. gear one; 11. gear two; 12. rocker; 13. fixing block; 14. limiting ring; 15. fixing plate; 16. bolt; 17. screw rod; 18. driving motor; 19. slider; 20. slide groove; 21. mounting seat; 22. connecting seat; 23. connecting rod; 24. base. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] Example:

[0029] Reference Figure 1-3 A lithium battery efficient welding device comprises a base 1, support sleeves 2 are fixedly provided on both sides of the outer surface of the base 1, a support plate 7 is movably provided inside the support sleeve 2, a top plate 3 is fixedly provided on the top of the support plate 7, and fixed plates 15 are provided on the symmetrical outer surfaces of the top plate 3, and bolts 16 are threadedly connected to the surface of the fixed plate 15, and a driving motor 18 is connected to the bottom end of one of the fixed plates 15, and a screw rod 17 is connected to the output end of the driving motor 18, and a slider 19 is threadedly connected to the surface of the screw rod 17, and a welding machine 4 is provided on the surface of the slider 19, and the other end of the screw rod 17 is connected to another fixed plate 15, and the welding machine 4 can be changed to different positions on the same straight line through the provided screw rod assembly, so as to facilitate the welding work on different welding points, and the provided fixed plate 15 can provide a stable working environment for the arrangement, and the provided driving motor 18 is started to make the slider 19 and the welding machine 4 slide on the surface of the screw rod 17, and the provided bolts 16 can fix the assembly on the surface of the top plate 3.

[0030] Reference Figure 1 The base 1 is provided with a rotating rod 9 for internal movement. The rotating rod 9 is provided with two gears 10 on the inner surface of the base 1. The outer extended end of the rotating rod 9 is connected with a rocker 12. The staff can hold the rocker 12 and rotate it, thereby driving the rotating rod 9 and the gear 10 to rotate, and then adjust the equipment through the cooperation of other components to facilitate welding.

[0031] Reference Figure 1Two fixing blocks 13 are fixedly provided on one side of the top plate 3, and the internal threads of the fixing blocks 13 are connected with the threaded rod 8. A limiting ring 14 is fixedly provided on the top of the threaded rod 8. The threaded rod 8 is provided with a gear 2 11 on the inner surface of the base 1, and the surface of the gear 2 11 is meshed with a gear 10. Through the meshing of the gear 2 11 and the gear 1 10, when it rotates, the top plate 3 can be driven to adjust in the vertical plane through the threaded rod 8 and the fixed block 13 connected thereto, and can be adjusted according to the lithium batteries of different heights, and the setting of the limiting ring 14 can limit the threaded rod 8.

[0032] Reference Figure 1-2 A bearing groove 5 is provided in the middle of the surface of the base 1, and a positioning ring 6 is movably provided next to the bearing groove 5. The bearing groove 5 provided on the surface of the base 1 is for placing the lithium battery to be welded, and the positioning ring 6 can fix it.

[0033] Reference Figure 1-4 The other side surface of the positioning ring 6 is fixedly connected with a mounting seat 21, and the mounting seat 21 is placed in a slide groove 20 opened on the surface of the base 1. The surface of the mounting seat 21 is movably connected with a connecting rod 23, and the other end of the connecting rod 23 is connected to a connecting seat 22 on the surface of the support plate 7. When the support plate 7 moves, the connecting seat 22, the connecting rod 23 and the mounting seat 21 will also move accordingly, prompting the positioning ring 6 connected to the mounting seat 21 to perform a clamping movement, which is convenient for fixing the lithium battery to be welded.

[0034] Reference Figure 1 Four bases 24 are fixedly connected to the bottom end of the base 1. The four bases 24 can keep the device away from the ground, provide support for the device, and increase the ventilation effect of the device.

[0035] Reference Figure 1 The surfaces of the base 1, the support sleeve 2, and the top plate 3 are all coated with fire retardants. High temperatures will be generated during lithium battery welding. Applying fire retardants on the surfaces of the base 1, the support sleeve 2, and the top plate 3 can effectively avoid fire hazards.

[0036] The implementation principle of an embodiment of a lithium battery high-efficiency welding device of the present application is as follows:

[0037] The screw assembly can be used to change the position of the welding machine 4 on the same straight line, so that it is convenient for welding at different welding points. The fixed plate 15 can provide a stable working environment for the setting. The driving motor 18 is started to make the slider 19 and the welding machine 4 slide on the surface of the screw 17. The bolts 16 can fix the assembly on the surface of the top plate 3.

[0038] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A lithium battery high-efficiency welding device, comprising a base (1), characterized in that: Support sleeves (2) are fixedly provided on both sides of the outer surface of the base (1), a support plate (7) is movably provided inside the support sleeve (2), a top plate (3) is fixedly provided on the top of the support plate (7), and fixing plates (15) are provided on the outer surfaces of the symmetrical sides of the top plate (3), and bolts (16) are threadedly connected to the surfaces of the fixing plates (15), the bottom end of one of the fixing plates (15) is connected to a driving motor (18), the output end of the driving motor (18) is connected to a screw rod (17), the surface of the screw rod (17) is threadedly connected to a slider (19), the surface of the slider (19) is provided with a welding machine (4), and the other end of the screw rod (17) is connected to another fixing plate (15).

2. A lithium battery high-efficiency welding device as claimed in claim 1, characterized in that: The base (1) is provided with a rotating rod (9) movably disposed inside, the rotating rod (9) being provided with two gears (10) on the inner surface of the base (1), and the outer extended end of the rotating rod (9) being connected with a rocker (12).

3. A lithium battery high-efficiency welding device as claimed in claim 2, characterized in that: Two fixing blocks (13) are fixedly arranged on one side of the top plate (3); the internal threads of the fixing blocks (13) are connected to a threaded rod (8); a limiting ring (14) is fixedly arranged on the top of the threaded rod (8); a second gear (11) is arranged on the internal surface of the base (1) of the threaded rod (8); and a first gear (10) is meshed with the surface of the second gear (11).

4. A lithium battery high-efficiency welding device as claimed in claim 1, characterized in that: A bearing groove (5) is arranged in the middle of the surface of the base (1), and a positioning ring (6) is movably arranged beside the bearing groove (5).

5. A lithium battery high-efficiency welding device as claimed in claim 4, characterized in that: The other side surface of the positioning ring (6) is fixedly connected to a mounting seat (21), and the mounting seat (21) is placed in a slide groove (20) provided on the surface of the base (1). The surface of the mounting seat (21) is movably connected to a connecting rod (23), and the other end of the connecting rod (23) is connected to a connecting seat (22) on the surface of the support plate (7).

6. A lithium battery high-efficiency welding device as claimed in claim 1, characterized in that: Four bases (24) are fixedly connected to the bottom end of the base (1).

7. A lithium battery high-efficiency welding device as claimed in claim 1, characterized in that: The surfaces of the base (1), the support sleeve (2) and the top plate (3) are all coated with a fire retardant.

Images