Pole lug welding and positioning mechanism of soft package battery

Abstract

The utility model relates to the technical field of welding clamps, in particular to a soft package battery tab welding and positioning mechanism which comprises two limiting assemblies used for limiting the position of a battery, and adjusting assemblies used for adjusting the distance between the two limiting assemblies are arranged at the bottoms of the limiting assemblies. The adjusting assembly comprises a bearing plate, a limiting sliding groove is formed in the middle of the top of the bearing plate, the two ends of the limiting sliding groove are rotationally connected to the outer portion of a left-right-handed screw rod, and the outer portion of the left-right-handed screw rod is in threaded connection with the interiors of two sets of movable sliding blocks; the two limiting assemblies are driven to move through the adjusting assembly, so that the two limiting rods get close to each other or get away from each other, the distance between the two limiting rods is changed, the two limiting rods are adjusted according to the external size of the battery pack, and the two limiting assemblies can be suitable for the battery packs of different sizes; and therefore, the applicability of the positioning mechanism is improved, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of welding jigs, in particular to a positioning mechanism for welding the tabs of soft-pack batteries. Background Technique

[0002] At present, the positive tab of a soft-pack lithium battery is an aluminum metal strip. However, when the aluminum metal strip is welded to tin metal, the adhesion performance is poor. At the same time, the aluminum metal is soft and not resistant to bending. Therefore, a nickel connecting piece is often welded to the aluminum positive tab to improve the welding performance and service life of the lithium battery. A positioning device is required during welding to limit the lithium battery to prevent the tabs or connecting pieces from skewing during welding. However, the traditional positioning device cannot be adjusted according to the specific size of the lithium battery, making it very inconvenient to position lithium batteries of different sizes, thus reducing the applicability of the positioning device.

[0003] Application No.: CN202220869883.X "A positioning tool for welding battery tabs". A positioning tool for welding battery tabs of the utility model includes a substrate. At least two battery limiting strips are arranged on the substrate. A limiting platform is arranged at one end of the substrate. The limiting platform limits one end of the battery tab strip. A positioning part is arranged at a position corresponding to the battery limiting strip at one end of the limiting platform. The positioning part includes a magnetic part. The positioning part positions the metal connecting piece through magnetic attraction. The battery tab and the metal connecting piece can be conveniently positioned. After the relative positions of the battery and the metal connecting piece are fixed, the tabs and the metal connecting piece can be welded. In addition, by arranging a receiving groove on the side of the positioning block corresponding to the tab, precise positioning of the metal connecting piece can be achieved. In addition, by setting the battery limiting strips to at least four, simultaneous positioning of multiple batteries and simultaneous positioning of multiple metal connecting pieces can be achieved. After the relative positions of multiple batteries and metal connecting pieces are fixed, they are welded in sequence to improve production efficiency. The positioning tool for welding battery tabs of this application is easy to use and has a good positioning effect, greatly reducing production costs and improving production efficiency.

[0004] However, the above positioning tool for welding battery tabs cannot be adjusted according to the specific size of the lithium battery, making it very inconvenient to position lithium batteries of different sizes, thus reducing the applicability of the positioning device. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a positioning mechanism for welding the tabs of soft-pack batteries, so that the positioning mechanism is applicable to battery packs of different sizes, in order to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A soft-pack battery tab welding positioning mechanism, comprising two sets of limiting components for limiting the position of the battery, and an adjusting component for adjusting the distance between the two sets of limiting components is provided at the bottom of the limiting components;

[0007] Wherein, the adjusting component includes: a bearing plate, a limiting chute is opened at the middle position of the top of the bearing plate, both ends of the limiting chute are rotatably connected to the outside of a left-right threaded screw rod, the outside of the left-right threaded screw rod is threadedly connected to the inside of two moving sliders, both sides of the two moving sliders are slidably connected to the wall of the limiting chute, and the top of one end of the bearing plate is fixedly connected to the bottom of a U-shaped bracket.

[0008] Preferably, one end of the left-right threaded screw rod is fixedly connected to one side of a knob for facilitating the rotation of the left-right threaded screw rod.

[0009] Preferably, a strip-shaped through hole is opened at the top of the U-shaped bracket.

[0010] Preferably, the limiting component includes: a limiting rod, the bottom of the limiting rod is fixedly connected to the top of the moving slider, one end of the limiting rod is located between the U-shaped bracket and the bearing plate, the top of the limiting rod is threadedly connected to the bottom end of a positioning screw one, and the side of the positioning screw one is slidably inserted into the wall of the strip-shaped through hole.

[0011] Preferably, one side of the limiting rod is fixedly connected to one end of an insertion plate, the other end of the insertion plate is threadedly connected to one end of a positioning screw two, and the outside of the positioning screw two is slidably inserted into the inner ring of a limiting plate.

[0012] Preferably, the outside of the insertion plate is slidably inserted into the wall of a through groove, the through groove is opened in a limiting block, and the limiting block is located between the limiting plate and the limiting rod.

[0013] Preferably, a limiting groove is opened at the top of the limiting block.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] The present utility model drives the two sets of limiting components to move through the adjusting component, so that the two sets of limiting rods approach or move away from each other, thereby realizing the change of the distance between the two sets of limiting rods. The two sets of limiting rods are adjusted according to the external dimensions of the battery pack, so that the two sets of limiting components can be applicable to battery packs of different sizes, thereby improving the applicability of the positioning mechanism and making it more convenient to use.

[0016] Other features and advantages of the present utility model will be described in the subsequent specification, and in part, will be obvious from the specification, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the specification and the accompanying drawings. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the adjustment component of the present utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the limit component of the present utility model;

[0020] Figure 4 It is a schematic diagram of the working state of the present utility model.

[0021] In the figure: 1. Adjustment component; 11. Knob; 12. Moving slider; 13. Left and right screw rod; 14. Limit chute; 15. Bearing plate; 16. Strip-shaped through hole; 17. U-shaped bracket; 2. Limit component; 21. Limit rod; 22. Positioning screw one; 23. Insertion plate; 24. Limit groove; 25. Through groove; 26. Limit plate; 27. Positioning screw two; 28. Limit block; 3. Battery pack; 4. Metal connecting piece; 5. Tab. Detailed Description of the Preferred Embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution: a soft-pack battery tab welding positioning mechanism, comprising: two limit components 2 for limiting the position of the battery, and an adjustment component 1 for adjusting the distance between the two limit components 2 is provided at the bottom of the limit component 2.

[0024] Furthermore, the adjustment component 1 drives the two limit components 2 to move to change the distance between the two limit components 2, so that the two limit components 2 can be applicable to battery packs 3 of different sizes, thereby improving the applicability of the positioning mechanism.

[0025] The adjusting component 1 includes: a bearing plate 15, a limiting chute 14 is opened at the middle position of the top of the bearing plate 15, both ends of the limiting chute 14 are rotatably connected to the outside of the left - right screw rod 13, the outside of the left - right screw rod 13 is threadedly connected to the inside of two moving sliders 12, both sides of the two moving sliders 12 are slidably connected to the wall of the limiting chute 14, and the top of one end of the bearing plate 15 is fixedly connected to the bottom of the U - shaped bracket 17. One end of the left - right screw rod 13 is fixedly connected to one side of the knob 11, and the knob 11 is located on one side of the bearing plate 15. A strip - shaped through - hole 16 is opened at the top of the U - shaped bracket 17, and a first positioning screw 22 is arranged in the strip - shaped through - hole 16.

[0026] Further, during use, first adjust the distance between the two limiting rods 21 to a suitable position according to the size of the battery pack 3. First, loosen the first positioning screw 22, so that the two limiting rods 21 can move relative to the U - shaped bracket 17. Then, rotate the knob 11 clockwise. The knob 11 drives the left - right screw rod 13 to rotate clockwise. When the left - right screw rod 13 rotates clockwise, it drives the two moving sliders 12 to move away from each other. When the knob 11 is rotated counterclockwise, the knob 11 drives the left - right screw rod 13 to rotate counterclockwise. When the left - right screw rod 13 rotates counterclockwise, it drives the two moving sliders 12 to move closer to each other; when the two moving sliders 12 move closer to each other or move away from each other, they drive the two limiting rods 21 to move closer to each other or move away from each other, thereby realizing the change of the distance between the two limiting rods 21. After adjusting the two limiting rods 21 to a suitable position according to the external size of the battery pack 3, tighten the first positioning screw 22, so that the two limiting rods 21 cannot move, and further enable the two limiting rods 21 to limit battery packs 3 of different sizes, improving the applicability of the positioning mechanism.

[0027] The limiting component 2 includes: a limiting rod 21, the bottom of the limiting rod 21 is fixedly connected to the top of the moving slider 12, one end of the limiting rod 21 is located between the U - shaped bracket 17 and the bearing plate 15, the top of the limiting rod 21 is threadedly connected to the bottom end of the first positioning screw 22, and the side part of the first positioning screw 22 is slidably inserted into the wall of the strip - shaped through - hole 16.

[0028] Further, first adjust the distance between the two limiting rods 21 to a suitable position according to the size of the battery pack 3. First, loosen the first positioning screw 22, so that the two limiting rods 21 can move relative to the U - shaped bracket 17. Tighten the first positioning screw 22, so that the two limiting rods 21 cannot move.

[0029] One side of the limiting rod 21 is fixedly connected to one end of the inserting plate 23. The other end of the inserting plate 23 is threadedly connected to one end of the second positioning screw 27. The outer part of the second positioning screw 27 is slidably inserted into the inner ring of the limiting plate 26. The outer part of the inserting plate 23 is slidably inserted into the groove wall of the through groove 25. The through groove 25 is formed in the limiting block 28. The limiting block 28 is located between the limiting plate 26 and the limiting rod 21. A limiting groove 24 is formed in the top of the limiting block 28. The limiting groove 24 is used to limit the position of the metal connecting piece.

[0030] Further, loosen the second positioning screw 27, so that the limiting block 28 can slide on the outer part of the inserting plate 23. Move the inserting plate 23 to ensure that the end of the metal connecting piece 4 can be in full contact with the ear 5 of the battery pack 3 after the metal connecting piece 4 is placed in the limiting groove 24, further improving the applicability of the positioning mechanism and ensuring the welding quality. After the position of the limiting block 28 is adjusted, tighten the second positioning screw 27 so that the limiting block 28 is clamped by the limiting plate 26, thereby realizing the fixation of the limiting block 28.

[0031] Working principle: During use, first adjust the distance between the two groups of limiting rods 21 to a suitable position according to the size of the battery pack 3. First, loosen the first positioning screw 22, so that the two limiting rods 21 can move relative to the U-shaped bracket 17. Then rotate the knob 11 clockwise. The knob 11 drives the left and right threaded screw rod 13 to rotate clockwise. When the left and right threaded screw rod 13 rotates clockwise, it drives the two groups of moving sliders 12 to move away from each other. When the knob 11 is rotated counterclockwise, the knob 11 drives the left and right threaded screw rod 13 to rotate counterclockwise. When the left and right threaded screw rod 13 rotates counterclockwise, it drives the two groups of moving sliders 12 to move closer to each other; when the two groups of moving sliders 12 move closer to each other or move away from each other, they drive the two groups of limiting rods 21 to move closer to each other or move away from each other, thereby realizing the change of the distance between the two groups of limiting rods 21. After adjusting the two groups of limiting rods 21 to a suitable position according to the external dimensions of the battery pack 3, tighten the first positioning screw 22, so that the two groups of limiting rods 21 cannot move, thereby enabling the two groups of limiting rods 21 to limit battery packs 3 of different sizes, improving the applicability of the positioning mechanism. Then loosen the second positioning screw 27, so that the limiting block 28 can slide on the outer part of the inserting plate 23. Move the inserting plate 23 to ensure that the end of the metal connecting piece 4 can be in full contact with the ear 5 of the battery pack 3 after the metal connecting piece 4 is placed in the limiting groove 24, further improving the applicability of the positioning mechanism and ensuring the welding quality. After the position of the limiting block 28 is adjusted, tighten the second positioning screw 27 so that the limiting block 28 is clamped by the limiting plate 26, thereby realizing the fixation of the limiting block 28.

[0032] After the above position adjustment is completed, place the battery pack 3 between the two groups of limiting rods 21, place the metal connecting piece 4 in the limiting groove 24, and then the ear 5 and the metal connecting piece 4 can be welded.

[0033] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A soft-pack battery tab welding positioning mechanism, characterized in that: It comprises two groups of limiting components (2) for limiting the position of the battery, and the bottom of the limiting components (2) is provided with an adjustment component (1) for adjusting the distance between the two groups of limiting components (2); The adjusting assembly (1) comprises: a supporting plate (15), a limiting slide groove (14) is provided at the middle position of the top of the supporting plate (15), the two ends of the limiting slide groove (14) are rotatably connected to the outside of the left and right screw rods (13), the external threads of the left and right screw rods (13) are connected to the inside of two groups of movable sliders (12), the two sides of the two groups of movable sliders (12) are slidably connected to the groove wall of the limiting slide groove (14), and the top of one end of the supporting plate (15) is fixedly connected to the bottom of the U-shaped bracket (17).

2. A soft-pack battery tab welding positioning mechanism according to claim 1, characterized in that: One end of the left and right screw rods (13) is fixedly connected to one side of a knob (11), and the knob (11) is located on one side of the bearing plate (15).

3. The soft-pack battery tab welding positioning mechanism according to claim 1, characterized in that: A strip-shaped through hole (16) is provided at the top of the U-shaped bracket (17), and a positioning screw (22) is provided in the strip-shaped through hole (16).

4. A soft-pack battery tab welding positioning mechanism according to claim 3, characterized in that: The limiting assembly (2) comprises: a limiting rod (21), the bottom of the limiting rod (21) is fixedly connected to the top of the movable slider (12), one end of the limiting rod (21) is located between the U-shaped bracket (17) and the supporting plate (15), the top of the limiting rod (21) is threadedly connected to the bottom end of a positioning screw (22), and the side of the positioning screw (22) is slidably inserted into the hole wall of the strip-shaped through hole (16).

5. A soft-pack battery tab welding positioning mechanism according to claim 4, characterized in that: One side of the limit rod (21) is fixedly connected to one end of the plug plate (23), and the other end of the plug plate (23) is threadedly connected to one end of the second positioning screw (27), and the outer part of the second positioning screw (27) is slidably inserted into the inner circle of the limit plate (26).

6. A soft-pack battery tab welding positioning mechanism according to claim 5, characterized in that: The outside of the inserting plate (23) is slidably inserted into the groove wall of the through groove (25), the through groove (25) is opened inside the limiting block (28), and the limiting block (28) is located between the limiting plate (26) and the limiting rod (21).

7. A soft-pack battery tab welding positioning mechanism according to claim 6, characterized in that: A limiting groove (24) is provided on the top of the limiting block (28), and the limiting groove (24) is used to limit the position of the metal connecting piece.

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