Battery cell tab welding tool

Abstract

The utility model provides a battery cell tab welding tool, which relates to the technical field of battery cell manufacturing and comprises a base and a partition plate, the partition plate is vertically connected onto the base, clamping plates are slidably mounted on two sides of the partition plate, clamping cavities for clamping a battery cell are formed between the clamping plates on two sides and the partition plate, and extrusion plates for extruding pole pieces to bend towards adjacent pole pieces are arranged at two ends of the clamping plates. Notches are formed in the two extrusion plates, and when the two extrusion plates abut against each other, the adjacent notches are spliced into a welding groove. According to the pole piece bending device, pole pieces of two battery cells can be bent and attached to a connecting piece all the time, welding of a worker is facilitated, the time for bending the pole pieces by the worker can be shortened, the state that the pole pieces and the connecting piece are pinched by the worker through a tool in the welding process is reduced, and the convenience of pole piece welding work is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core manufacturing, in particular to a battery core pole ear welding tool. Background Art

[0002] In the battery production process, the manufacture of the battery is achieved through a variety of processes, among which the gasket process is currently a common means of manufacturing battery cells. The electrodes of the disc battery cells will be located at the two ends of the same side of the battery cells, and the two pole ears need to be connected and welded through the pole ear connecting pieces. Before welding, the pole ears need to be manually bent and fitted with the pole ear connecting pieces before welding can be carried out, so as to ensure that the welding does not take up extra space and ensure the welding effect and quality. However, the pole pieces need to be manually bent during each welding process. At the same time, the pole pieces and the connecting pieces cannot always maintain a flat fit during the welding process, and manual holding is required, which causes inconvenience in welding and affects the welding efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a battery cell pole ear welding tool to bend the pole piece of the battery cell and always fit it with the connecting piece for easy welding.

[0004] Based on the technical problems existing in the background technology, the utility model proposes a battery cell pole ear welding tool, including a base and a partition, the partition is vertically connected to the base, clamps are slidably installed on both sides of the partition, and clamping cavities for clamping the battery cell are formed between the clamps on both sides and the partition, extrusion plates are arranged at both ends of the clamp for extruding the pole piece to bend toward the adjacent pole piece, and notches are arranged on the two extrusion plates. When the two extrusion plates collide, adjacent notches are spliced ​​into welding grooves.

[0005] Preferably, an inverted T-shaped slide groove is provided on the base, a matching guide block is slidably mounted on the slide groove, the clamping plate is connected to the guide block, and the clamping plate approaches or moves away from the partition through the guide block.

[0006] Preferably, a driving mechanism is installed on the base, and the driving mechanism is connected to the guide block.

[0007] Preferably, the clamping plate is parallel to the partition plate, and the extrusion plate is perpendicular to the clamping plate.

[0008] Preferably, a cover plate is placed on the partition, connecting plates are installed at both ends of the cover plate, and the pole piece is bent and fits with the connecting plate.

[0009] Preferably, the bent rear end surfaces of two adjacent pole pieces contact each other.

[0010] Preferably, a squeezing roller is rotatably mounted in the slot on the squeezing plate.

[0011] Preferably, the distance between the squeezing roller and the connecting sheet is equal to the thickness of the pole piece.

[0012] Compared with the prior art, the battery cell tab welding tool proposed by the utility model adopts the above technical solution and achieves the following technical effects:

[0013] The utility model can bend the pole pieces of two battery cells and always fit them on the connecting pieces, which is convenient for workers to weld. The utility model can reduce the time for workers to bend the pole pieces and reduce the state of workers pinching the pole pieces and the connecting pieces with tools during the welding process, thereby improving the convenience of pole piece welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the battery installation structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the electrode for shrinking and bending the splint of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the electrode after welding of the utility model is completed.

[0018] In the figure: 1, base; 2, partition; 3, clamping plate; 4, clamping cavity; 5, pole piece; 6, extrusion plate; 61, notch; 11, slide groove; 7, guide block; 8, cover plate; 81, connecting plate; 9, extrusion roller; 10, driving mechanism. DETAILED DESCRIPTION

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] Example

[0022] Please refer to Figure 1-Figure 4 The utility model proposes a battery cell pole ear welding tool, including a battery cell pole ear welding tool, including a base 1, a partition 2, the partition 2 is vertically connected to the base 1, clamping plates 3 are slidably installed on both sides of the partition 2, and clamping cavities 4 for clamping the battery cell are formed between the clamping plates 3 on both sides and the partition 2, and extrusion plates 6 are arranged at both ends of the clamping plates 3 to extrude the pole piece 5 and bend toward the adjacent pole piece 5. Notches 61 are arranged on the two extrusion plates 6. When the two extrusion plates 6 collide, the adjacent notches 61 are spliced ​​into a welding groove. In the present invention, both ends of the clamp 3 are connected to the extrusion plate 6, which is U-shaped in the top view. The shape of the battery cell is a rectangular parallelepiped, and its pole piece 5 will extend out of the clamp cavity 4. The clamp 3 continuously moves toward the position of the battery cell, and the extrusion plate 6 will squeeze the pole piece 5 to fit the battery cell after it contacts the pole piece 5. In the present invention, there is also a connecting piece 81, which is parallel to the extrusion plate 6 and is located between the ends of the two partitions 2 and the interlayer of the extrusion plate 6. After the pole piece 5 is bent, it will continue to approach and fit the connecting piece 81. The adjacent pole pieces 5 of the two battery cells will be pressed, bent and fit the connecting piece 81. At this time, the welding groove formed between the two extrusion pieces will leak the gap between the two pole pieces 5, which is convenient for the staff to weld. The utility model can be welded in the pressed state to avoid the rebound of the pole piece 5 after the extrusion plate 6 is detached.

[0023] In a specific embodiment, refer to Figure 1 , Figure 2 An inverted T-shaped slide groove 11 is provided on the base 1, and a matching guide block 7 is slidably installed on the slide groove 11. The clamping plate 3 is connected to the guide block 7, and the clamping plate 3 is close to or away from the partition 2 through the guide block 7. The guide block 7 includes a sliding portion and a connecting portion. The cross-section of the guide block 7 is the same as the shape of the slide groove 11. The connecting portion is connected to the sliding portion, and the connecting portion is used to connect the clamping plate 3 and the driving mechanism 10. A driving mechanism 10 is installed on the base 1, and the driving mechanism 10 is connected to the guide block 7. In the utility model, the driving mechanism 10 adopts a cylinder, and the cylinder drives the clamping plate 3 to move toward the partition 2 to clamp the battery cell, and at the same time, the pole piece 5 is bent to fit the connecting piece 81 during the clamping process.

[0024] In a specific embodiment, refer to Figure 1 , Figure 2 , the clamping plate 3 is parallel to the partition plate 2, and the extrusion plate 6 is perpendicular to the clamping plate 3. The extrusion plate 6 and the clamping plate 3 are horizontally vertical.

[0025] In a specific embodiment, refer to Figure 1 , Figure 2 , a cover plate 8 is placed on the partition 2, and connecting pieces 81 are installed at both ends of the cover plate 8, and the pole piece 5 is bent and fits with the connecting piece 81. The connecting piece 81 is used to connect the two pole pieces 5, and the ends of the two pole pieces 5 are in contact with each other. The two pole pieces 5 do not overlap each other, and are completely in contact with each other on the connecting piece 81 and welded. The two connecting pieces 81 are placed to determine the position through the cover plate 8. A slot is opened under the cover plate 8, and the cover plate 8 is inserted into the partition 2 through the slot to install and determine the position of the connecting piece 81.

[0026] In a specific embodiment, refer to Figure 1 , Figure 2 , the rear end surfaces of two adjacent pole pieces 5 that are bent contact each other.

[0027] In a specific embodiment, refer to Figure 1 , Figure 2 A squeezing roller 9 is rotatably mounted in the notch 61 on the squeezing plate 6. The squeezing roller 9 contacts the pole piece 5. When adjacent squeezing plates 6 are close to each other, the squeezing roller 9 can squeeze the pole piece 5 to bend without damaging the pole piece 5 due to the edges and corners.

[0028] In a specific embodiment, refer to Figure 1 , Figure 2 , the distance between the squeezing roller 9 and the connecting sheet 81 is equal to the thickness of the pole piece 5. The distance between the squeezing roller 9 and the connecting sheet 81 is sufficient for the pole piece 5 to be superimposed, so the pole piece 5 will not be completely fitted with the connecting sheet 81 after being bent due to the large distance; the rotation axis of the squeezing roller 9 is vertical.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery cell tab welding tool, characterized in that: The invention comprises a base (1) and a partition (2), wherein the partition (2) is vertically connected to the base (1), clamping plates (3) are slidably mounted on both sides of the partition (2), and clamping cavities (4) for clamping the battery core are formed between the clamping plates (3) and the partition (2) on both sides, and extrusion plates (6) are arranged at both ends of the clamping plates (3) for extruding the pole pieces (5) and bending them toward the adjacent pole pieces (5), and notches (61) are arranged on the two extrusion plates (6), and when the two extrusion plates (6) collide with each other, the adjacent notches (61) are spliced ​​into a welding groove.

2. The battery cell tab welding tool according to claim 1, characterized in that: An inverted T-shaped slide groove (11) is provided on the base (1), a matching guide block (7) is slidably mounted on the slide groove (11), the clamping plate (3) is connected to the guide block (7), and the clamping plate (3) approaches or moves away from the partition (2) through the guide block (7).

3. The battery cell tab welding tool according to claim 2, characterized in that: A driving mechanism (10) is installed on the base (1), and the driving mechanism (10) is connected to the guide block (7).

4. The battery cell tab welding tool according to claim 1, characterized in that: The clamping plate (3) is parallel to the partition plate (2), and the extrusion plate (6) is perpendicular to the clamping plate (3).

5. The battery cell tab welding tool according to claim 1, characterized in that: A cover plate (8) is placed on the partition plate (2), connecting plates (81) are installed at both ends of the cover plate (8), and the pole piece (5) is bent and affixed to the connecting plate (81).

6. The battery cell tab welding tool according to claim 1, characterized in that: The bent rear end surfaces of two adjacent pole pieces (5) abut against each other.

7. The battery cell tab welding tool according to claim 5, characterized in that: A squeezing roller (9) is rotatably mounted in the notch (61) on the squeezing plate (6).

8. The battery cell tab welding tool according to claim 7, characterized in that: The distance between the squeezing roller (9) and the connecting sheet (81) is equal to the thickness of the pole sheet (5).

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