Battery nickel sheet welding device

Abstract

The utility model discloses a battery nickel sheet welding device which comprises a base, the base comprises a fixed clamping block and a movable clamping block which are oppositely arranged, a plurality of continuous first clamping grooves are formed in the inner side of the fixed clamping block, and a plurality of continuous second clamping grooves are formed in the inner side of the movable clamping block. A pull rod fixedly connected with the movable clamping block is arranged on the fixed plate in a penetrating mode, elastic reset pieces are arranged between the two ends of the fixed plate and the movable clamping block, a bottom positioning groove is formed in the upper surface of the base, a lifting column is fixedly connected to the rear end of the base, and a beam plate is arranged at the upper end of the base. A rectangular sliding hole is formed in the cross beam plate, a sliding plate is arranged in the rectangular sliding hole in a sliding mode, two air cylinders arranged side by side are installed on the sliding plate, and cylinder shafts of the air cylinders penetrate through the sliding plate and then are provided with spot welding machines. The battery nickel sheet welding device is used for welding nickel sheets on double-row multi-battery cells, and the battery cells can be stably clamped during welding, so that the welding effect is improved, and the welding efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of nickel sheet welding, in particular to a battery nickel sheet welding device. Background Art

[0002] Lithium batteries have gradually become the main power source for electric vehicles, mobile phones, laptops and other electronic products due to their high energy density, light weight and pollution-free characteristics. Lithium batteries have higher energy density and cycle life than traditional batteries such as lead-acid batteries and nickel-metal hydride batteries, and can provide a more stable and reliable power supply. In order to improve the performance and safety of lithium batteries, the batteries need to be connected.

[0003] Chinese patent CN202321644096.6 discloses a power battery nickel sheet compression welding device, including a frame platform, a Y-axis linear module, an X-axis linear module and a pallet conveying mechanism. The pallet conveying mechanism is located directly below the X-axis linear module and is used to transport the power battery pallet; a Z-axis linear module is installed at the upper end of the vertical seat plate, a nickel sheet welding pressure head assembly is installed at the lower end of the vertical seat plate, and a welding galvanometer kit for emitting a laser beam and a visual camera assembly for photographing each welding point on the nickel sheet are installed on the Z-axis movable seat plate of the Z-axis linear module.

[0004] The power battery nickel sheet compression welding equipment uses a three-axis linkage method to control the welding position of a single welding machine. It has a complex structure and is not suitable for welding double-row multi-cell battery modules. Utility Model Content

[0005] The utility model aims to provide a battery nickel sheet welding device, which is used to weld nickel sheets on double-row multi-cells, and adopts a two-axis linkage method to control the position of the welding point, that is, the axial direction along the vertical direction and the axial direction along the length direction of the crossbeam plate are used to control the position of the welding point, and a double-row multi-cell battery module is formed by welding. During welding, multiple cells can be kept stably clamped, thereby increasing the welding effect, and two welding points can be welded at the same time, thereby improving the welding efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a battery nickel sheet welding device, which comprises a base, the base comprises a fixed clamping block and a movable clamping block which are relatively arranged, the inner side of the fixed clamping block is provided with a plurality of continuous first clamping grooves, the inner side of the movable clamping block is provided with a plurality of continuous second clamping grooves, the base is fixedly connected with a fixed plate on the side of the movable clamping block which is away from the fixed clamping block, the fixed plate is penetrated with a pull rod which is fixed with the movable clamping block, the outer end of the pull rod is fixedly connected with a circular handle, the two ends of the fixed plate and the movable clamping block are provided with an elastic reset part, the upper surface of the base is provided with a bottom positioning groove, the rear end of the base is fixedly connected with a lifting column, the upper end of the base is provided with a cross beam plate, the cross beam plate is provided with a rectangular sliding hole, a slide plate is slidably arranged in the rectangular sliding hole, two cylinders arranged in parallel are installed on the slide plate, and a spot welding machine is installed after the cylinder shaft of the cylinder penetrates the slide plate.

[0007] Preferably, the elastic return member is a spring, and a light rod is slidably provided at both ends of the elastic return member, the two ends of the light rod are respectively fixed to the fixed clamp block and the fixed plate, and the middle part passes through the corresponding spring setting.

[0008] Preferably, a plurality of supporting ribs are fixedly connected between the outer side of the fixing plate and the base.

[0009] Preferably, the lifting column comprises a hydraulic telescopic plate, and a connecting plate is fixedly connected to the upper end of the hydraulic telescopic plate.

[0010] Preferably, sliding grooves are provided on both sides of the rectangular sliding hole, and sliding blocks sliding in the sliding grooves are fixedly connected to both sides of the sliding plate.

[0011] Preferably, a motor is installed at the rear end of the crossbeam plate, and a lead screw which spirally penetrates the slide plate is connected to the upper shaft of the motor.

[0012] Preferably, a rotating hole for rotating the end of the lead screw is provided on one end of the cross beam plate facing away from the lifting column.

[0013] The cam is provided with a plurality of first and second clamping grooves, and the inner side of the plurality of movable clamping blocks is provided with a plurality of continuous second clamping grooves. The cam is provided with a plurality of continuous second clamping grooves. The cam is provided with a plurality of continuous second clamping grooves. The cam is provided with a plurality of continuous second clamping grooves. The cam is provided with a plurality of continuous second clamping grooves.

[0014] The use and beneficial effects of the battery nickel sheet welding device are as follows: during welding, the round handle is held to pull the pull rod so that the movable clamp moves away from the fixed clamp, and then the double-row multi-cells are arranged in sequence and placed in the bottom positioning groove, so that the bottom position of the placed multiple cells is limited to be unable to move forward, backward, left and right, and the row of cells close to the first clamping groove can be each limited in the corresponding first clamping groove. After the cells are placed in place, the round handle is released, so that the movable clamp is clamped in a row of cells close to the second clamping groove, and a row of cells close to the second clamping groove is each limited in the corresponding second clamping groove, and the double-row adjacent multiple cells are also close to each other. At this time, the double-row multi-cell is stably clamped between the movable clamp and the fixed clamp. Then the position of the crossbeam plate is lowered by the lifting column, and the nickel sheet to be welded on the cell is placed in the corresponding position. The corresponding spot welder is driven down by two cylinders arranged in parallel, and the corresponding welding points on the double-row cells are welded one by one, and the welding efficiency is significantly improved compared with the use of a single spot welder.

[0015] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of a battery nickel sheet welding device;

[0018] Figure 2 It is a partial structural schematic diagram of a preferred implementation of a battery nickel sheet welding device.

[0019] Description of Reference Numerals

[0020] 1-base; 2-support ribs; 3-fixed plate; 4-round handle; 5-pull rod; 6-spring; 7-movable clamp; 8-light rod; 9-fixed clamp; 10-first clamping groove; 11-second clamping groove; 12-spot welder; 13-rotating hole; 14-slide plate; 15-cylinder; 16-slider; 17-slide groove; 18-screw; 19-crossbeam plate; 20-rectangular slide hole; 21-motor; 22-connecting plate; 23-hydraulic telescopic plate; 24-bottom positioning groove. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0022] In the present utility model, unless otherwise stated, directional words contained in terms such as "up, down, left, right, front, back, inside, outside" merely represent the orientation of the terms in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms.

[0023] See also Figure 1-2 The battery nickel sheet welding device shown in the figure comprises a base 1, the base 1 comprises a fixed clamping block 9 and a movable clamping block 7 arranged opposite to each other, the inner side of the fixed clamping block 9 is provided with a plurality of continuous first clamping grooves 10, the inner side of the movable clamping block 7 is provided with a plurality of continuous second clamping grooves 11, a fixed plate 3 is fixedly connected to the side of the movable clamping block 7 facing away from the fixed clamping block 9 on the base 1, a pull rod 5 fixed to the movable clamping block 7 is provided through the fixed plate 3, and the outer end of the pull rod 5 A round handle 4 is fixedly connected, elastic reset parts are arranged between the two ends of the fixed plate 3 and the movable clamping block 7, a bottom positioning groove 24 is arranged on the upper surface of the base 1, a lifting column is fixedly connected to the rear end of the base 1, a crossbeam plate 19 is arranged on the upper end of the base 1, a rectangular sliding hole 20 is arranged on the crossbeam plate 19, a slide plate 14 is slidably arranged in the rectangular sliding hole 20, two cylinders 15 arranged in parallel are installed on the slide plate 14, and a spot welder 12 is installed after the cylinder shaft of the cylinder 15 passes through the slide plate 14.

[0024] Through the implementation of the above technical solution, during welding, the round handle 4 is held to pull the pull rod 5 so that the movable clamp 7 moves away from the fixed clamp 9, and then the double-row multi-cells are arranged in sequence and placed in the bottom positioning groove 24, so that the bottom position of the placed multiple cells is limited and cannot be moved forward, backward, left or right, and the row of cells close to the first clamping groove 10 can be each limited in the corresponding first clamping groove 10. After the cells are placed in place, the round handle 4 is released, so that the movable clamp 7 is clamped in a row of cells close to the second clamping groove 11, and the row of cells close to the second clamping groove 11 are each limited in the corresponding second clamping groove 11, and the multiple adjacent cells in the double row are also close to each other. At this time, the double-row multi-cells are stably clamped between the movable clamp 7 and the fixed clamp 9. Then, the position of the crossbeam plate 19 is lowered by the lifting column, and the nickel sheets to be welded on the battery cells are placed at the corresponding positions. The corresponding spot welders 12 are driven down by two parallel cylinders 15 to weld the corresponding welding points on the double-row battery cells one by one. The welding efficiency is significantly improved compared with using a single spot welder 12.

[0025] See also Figure 1 and 2 As shown, there are 5 consecutive first clamping grooves 10, and 5 consecutive second clamping grooves 11. The bottom positioning groove 24 is configured to accommodate 10 battery cells, wherein 5 battery cells are arranged in each row, one row of battery cells is configured to fit the 5 first clamping grooves 10, and the other row of battery cells is configured to fit the 5 second clamping grooves 11. The two rows of battery cells on the left and right sides are abutted against each other one by one, and the outer contour of the bottom positioning groove 24 corresponds to the outer contour of the 10 battery cells after grouping, so that the bottom positioning groove 24 can just position and accommodate the 10 battery cells.

[0026] During welding, two spot welders 12 can be used to gradually weld 10 battery cells and nickel sheets in pairs. During welding, one battery cell in each row is welded, and 10 battery cells only need to be welded five times. Compared with the traditional welding using a single spot welder 12, the spot welder 12 does not need to move in the X and Y directions perpendicular to each other on the plane to switch the welding point position, but only needs to use the slide plate 14 to slide unidirectionally in the rectangular slide, and two points can be welded for each sliding distance position.

[0027] Of course, the two cylinders 15 may not work at the same time. When only one welding spot of two battery cells in each row needs to be welded, only one cylinder 15 needs to be started to drive the corresponding spot welder 12 to move down for welding. The interval of each movement of the slide plate 14 is the interval between two adjacent battery cells, so that after each movement, the two spot welders 12 can be located directly above the corresponding two battery cells.

[0028] In this embodiment, in order to further provide an elastic reset member, the elastic reset member is a spring 6, and a light rod 8 is slidably provided at both ends of the elastic reset member, and the two ends of the light rod 8 are respectively fixed to the fixed clamp block 9 and the fixed plate 3, and the middle part passes through the corresponding spring 6. When the pull rod 5 is pulled, the movable clamp block 7 squeezes the spring 6 to generate compression deformation, and when the pull rod 5 is released, the spring 6 is reset, so that the movable clamp block 7 is pressed on a row of battery cells.

[0029] In this embodiment, in order to increase the supporting strength of the fixing plate 3 , a plurality of supporting ribs 2 are fixedly connected between the outer side of the fixing plate 3 and the base 1 .

[0030] In this embodiment, in order to further provide a lifting column, the lifting column includes a hydraulic telescopic plate 23, and the upper end of the hydraulic telescopic plate 23 is fixedly connected to a connecting plate 22. Through the arrangement of the hydraulic telescopic plate 23, the spot welder 12 can be driven to generate a large amount of displacement in the vertical direction, so that there is more space to install the battery cell between the movable clamp block 7 and the fixed clamp block 9.

[0031] In this embodiment, the two sides of the rectangular slide hole 20 are provided with slide grooves 17, and the two sides of the slide plate 14 are fixed with sliders 16 sliding in the slide grooves 17. Through the cooperation of the sliders 16 and the slide grooves 17, the slide plate 14 can slide in the rectangular slide hole 20 more stably.

[0032] In this embodiment, a motor 21 is installed at the rear end of the cross beam plate 19, and a lead screw 18 is connected to the motor 21 and spirally penetrates the slide plate 14. The motor 21 rotates to drive the lead screw 18 to rotate, and then the slide plate 14 can move horizontally under the threaded fit between the lead screw and the slide plate 14 and the guidance of the slider 16.

[0033] In this embodiment, a rotating hole 13 for rotating the end of the lead screw 18 is provided on the end of the cross beam plate 19 facing away from the lifting column. One end of the lead screw 18 passes through one end of the rectangular sliding hole 20 and is connected to the motor 21, and the other end is rotatably arranged in the rotating hole 13, which can increase the stability of the lead screw 18.

[0034] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0035] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0036] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A battery nickel sheet welding device, characterized in that: The battery nickel sheet welding device comprises a base (1), the base (1) comprises a fixed clamping block (9) and a movable clamping block (7) arranged opposite to each other, the inner side of the fixed clamping block (9) is provided with a plurality of continuous first clamping grooves (10), and the inner side of the movable clamping block (7) is provided with a plurality of continuous second clamping grooves (11); A fixed plate (3) is fixedly connected to the base (1) on the side of the movable clamp (7) facing away from the fixed clamp (9); a pull rod (5) is provided through the fixed plate (3) and is fixedly connected to the movable clamp (7); a round handle (4) is fixedly connected to the outer end of the pull rod (5); elastic reset parts are provided between the two ends of the fixed plate (3) and the movable clamp (7); and a bottom positioning groove (24) is provided on the upper surface of the base (1); A lifting column is fixedly connected to the rear end of the base (1), a crossbeam plate (19) is arranged at the upper end of the base (1), a rectangular sliding hole (20) is arranged on the crossbeam plate (19), a slide plate (14) is slidably arranged in the rectangular sliding hole (20), two cylinders (15) arranged in parallel are installed on the slide plate (14), and a spot welder (12) is installed after the cylinder shaft of the cylinder (15) passes through the slide plate (14).

2. The battery nickel sheet welding device according to claim 1, characterized in that: The elastic return member is a spring (6), and a light rod (8) is slidably penetrated at both ends of the elastic return member. The two ends of the light rod (8) are respectively fixed to the fixed clamp block (9) and the fixed plate (3), and the middle part penetrates the corresponding spring (6).

3. The battery nickel sheet welding device according to claim 1, characterized in that: A plurality of supporting ribs (2) are fixedly connected between the outer side of the fixing plate (3) and the base (1).

4. The battery nickel sheet welding device according to claim 1, characterized in that: The lifting column comprises a hydraulic telescopic plate (23), and the upper end of the hydraulic telescopic plate (23) is fixedly connected to a connecting plate (22).

5. The battery nickel sheet welding device according to claim 1, characterized in that: Slide grooves (17) are arranged on both sides of the rectangular slide hole (20), and slide blocks (16) sliding in the slide grooves (17) are fixedly connected on both sides of the slide plate (14).

6. The battery nickel sheet welding device according to claim 1, characterized in that: A motor (21) is installed at the rear end of the cross beam plate (19), and a lead screw (18) which spirally penetrates the slide plate (14) is connected to the upper shaft of the motor (21).

7. The battery nickel sheet welding device according to claim 6, characterized in that: A rotating hole (13) for rotating the end of the lead screw (18) is provided on one end of the cross beam plate (19) facing away from the lifting column.

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