Battery piece butt joint device for stacked gate battery welding

Abstract

The utility model discloses a battery piece butt joint device for stacked gate battery welding, and relates to the related technical field of stacked gate batteries, the battery piece butt joint device comprises a first base and a second base, the first base is provided with a pay-off mechanism, the top of the second base is provided with a wire guiding mechanism, and the top of the second base is provided with a supporting plate; a polygonal winding reel is arranged on the front side of the supporting plate, a mounting seat is arranged on the top of the second base, a driving disc is arranged on the top of the mounting seat, an adjusting seat is arranged on the top of the driving disc, and an adsorption platform is arranged on the top of the adjusting seat. According to the battery piece welding device, the driving disc rotates to move the adsorption platform to the position below the polygonal winding reel, then the position of the adsorption platform is finely adjusted through the adjusting base, and therefore a battery piece can be precisely attached to a conductive wire on the polygonal winding reel, and then the battery piece is heated through the adsorption platform to be welded; therefore, the battery piece and the conductive wire are more convenient to weld.

Description

Technical Field

[0001] This application relates to the technical field of tandem cells, and particularly to a cell docking device for welding tandem cells. Background Art

[0002] The welding method of the conductive wire of the tandem cell is to wind the wire on a winding cylinder first. A conductive wire is wound around the winding cylinder with positioning grooves, and then the cell is lifted by the adsorption platform so that the cell grid lines are in close contact with the conductive wire. At this time, it is necessary to control the fitting of the cell and the conductive wire through a docking device, and finally heat the cell to complete the welding.

[0003] When some existing cells are welded, the heating method can choose hot air or infrared heating lamp. However, due to the large volume of the heating equipment, the ordinary hot air or infrared lamp tube can only be installed inside the winding cylinder and heat from the upper part of the cell. However, because the winding cylinder needs to have rotation actions such as winding, it is not easy to install the heating equipment inside the winding cylinder, and it is necessary to pay attention to avoiding the rotating winding cylinder. Therefore, it is more troublesome when welding the cell. Utility Model Content

[0004] In order to improve the problem that the ordinary hot air or infrared lamp tube mentioned above can only be installed inside the winding cylinder due to the large volume of the heating equipment and heat from the upper part of the cell. However, because the winding cylinder needs to have rotation actions such as winding, it is not easy to install the heating equipment inside the winding cylinder, and it is necessary to pay attention to avoiding the rotating winding cylinder. Therefore, it is more troublesome when welding the cell, this application provides a cell docking device for welding tandem cells.

[0005] This application provides a cell docking device for welding tandem cells, and adopts the following technical solutions:

[0006] A cell docking device for welding tandem cells includes a first base and a second base. A wire releasing mechanism is arranged on the first base. A wire guiding mechanism is arranged on the top of the second base. A support plate is arranged on the top of the second base. A polygonal winding cylinder is arranged on the front side of the support plate. A mounting seat is arranged on the top of the second base. A driving disk is arranged on the top of the mounting seat. For example, a driving disk is arranged on the top of the mounting seat. An adjusting seat is arranged on the top of the driving disk. An adsorption platform is arranged on the top of the adjusting seat. The adsorption platform is below the polygonal winding cylinder. Through the above technical solutions, first, the conductive wire is released by the wire releasing mechanism, then the conductive wire is guided to the polygonal winding cylinder by the wire guiding mechanism and evenly wound around the conductive wire. Then the cell is placed on the adsorption platform. At this time, the adsorption platform is moved to the lower part of the polygonal winding cylinder by the driving disk, and then the position of the adsorption platform is finely adjusted by the adjusting seat, so that the cell can be accurately fitted with the conductive wire on the polygonal winding cylinder.

[0007] Optionally, in the above-mentioned cell docking device for tandem cell welding, the driving disk is rotatably arranged.

[0008] Optionally, in the above-mentioned cell docking device for tandem cell welding, the driving disk adopts a linear module.

[0009] Optionally, in the above-mentioned cell docking device for tandem cell welding, the wire guiding mechanism has a plurality of guide wheels. Some of the guide wheels close to the polygonal winding cylinder have positioning grooves opened on their outer surfaces, and the shape of the positioning groove is a V-shaped groove.

[0010] Through the above technical solution, the direction of the conductive wire is conveniently positioned through the positioning groove, so that the triangular edges of the conductive wire are located in the positioning groove, and further the conductive wire can be wound around the polygonal winding cylinder with the edges facing up.

[0011] Optionally, in the above-mentioned cell docking device for tandem cell welding, the driving disk includes a rotating shaft, a rotating disk and a motor. The motor is arranged on the mounting seat. The rotating disk is connected to the driving shaft of the motor through the rotating shaft, and the rotating shaft is arranged on the driving shaft of the motor. Preferably, the motor is fixedly arranged on the mounting seat. Preferably, the rotating shaft is vertically and fixedly arranged on the driving shaft of the motor.

[0012] Through the above technical solution, the motor is convenient for driving the rotating shaft and the rotating disk to rotate, so that the adjusting seat and the adsorption platform can be conveniently moved below the polygonal winding cylinder, and then the adjusting seat drives the adsorption platform to move up and makes the cell contact with the conductive wire.

[0013] Optionally, in the above-mentioned cell docking device for tandem cell welding, the adjusting seat is a four-axis micro-motion platform.

[0014] Optionally, in the above-mentioned cell docking device for tandem cell welding, the adsorption platform includes a housing. The top of the housing is recessed downward to form a vacuum cavity. An infrared LED circuit board is arranged in the vacuum cavity, and a sealing plate is arranged on the top of the housing. Preferably, the sealing plate is fixedly arranged on the top of the housing.

[0015] Through the above technical solution, the infrared LED circuit board is assembled in the vacuum cavity, and the LED lamp beads face upward. And the LED lamp beads are small in volume and flexible in arrangement, which can make the cell heating more uniform. At the same time, when the cell is adsorbed and fixed to the adsorption platform, the infrared LED can be turned on to preheat the cell, for example, heating the cell to 50 - 110 °C, and then raising the temperature to the welding temperature after the cell and the conductive wire are aligned and in good contact.

[0016] Optionally, in the above-described wafer docking device for tandem cell welding, the sealing plate is a transparent quartz plate. A plurality of vacuum adsorption holes for adsorbing wafers are provided on the top surface of the transparent quartz plate. A vacuum generator is provided on the outer wall of the housing, and the air extraction end of the vacuum generator is communicated with the vacuum cavity.

[0017] Through the above technical solution, the part of the adsorption platform in contact with the wafer uses a transparent or infrared wavelength light-absorbing material, such as quartz. When the infrared LED circuit board operates, the wafer can be heated, and the air in the vacuum cavity is sucked by the vacuum generator. Then, the wafer is adsorbed on the adsorption platform through the vacuum adsorption holes.

[0018] Optionally, in the above-described wafer docking device for tandem cell welding, a vision camera for reading the position of the wafer on the adsorption platform is provided on the second base, and the vision camera is above the adjustment seat.

[0019] Through the above technical solution, the position of the wafer on the adsorption platform is detected by the vision camera. The position of the conductive wire on the polygonal winding cylinder is fixed, and then the position data of the conductive wire is digitized. After the position of the wafer on the adsorption platform is located by the vision camera, it is compared with the position data of the conductive wire. Then, the adjustment seat adjusts the position of the wafer to coincide with the position of the conductive wire to achieve alignment. Finally, the Z-axis of the adjustment seat is raised to make the wafer fit with the conductive wire.

[0020] In summary, the present application includes at least one of the following beneficial effects:

[0021] The adsorption platform is moved to the lower part of the polygonal winding cylinder by the driving disk, and then the position of the adsorption platform is finely adjusted by the adjustment seat, so that the wafer can be accurately fitted with the conductive wire on the polygonal winding cylinder. Then, the wafer is heated by the adsorption platform for welding, so it is more convenient to weld the wafer and the conductive wire;

[0022] When the wafer is adsorbed and fixed on the platform, the infrared LED is turned on to preheat the wafer, and then the temperature is raised to the welding temperature after the wafer and the conductive wire are aligned and in good contact. This operation has a faster heating rate, can shorten the cycle time, and thus improve the production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present application;

[0024] Figure 2 is a partially expanded three-dimensional structural schematic diagram of the present application;

[0025] Figure 3 is a partially sectional three-dimensional structural schematic diagram of the adsorption platform of the present application.

[0026] In the figure: 1. First base; 2. Second base; 3. Wire releasing mechanism; 4. Wire guiding mechanism; 5. Support plate; 6. Polygonal winding cylinder; 7. Mounting seat; 8. Driving disc; 81. Rotating shaft; 82. Turntable; 83. Motor; 9. Adjusting seat; 10. Adsorption platform; 101. Shell; 102. Vacuum cavity; 103. Infrared LED circuit board; 104. Sealing plate; 105. Vacuum adsorption hole; 106. Vacuum generator; 12. Vision camera. Detailed implementation mode

[0027] The following is a further detailed description of this application in combination with the attached Figures 1-3 drawings.

[0028] Example 1. Please refer to the drawings in the specification Figure 1 and Figure 2 and Figure 3 The first embodiment provided by this application: A battery piece docking device for stacked grid battery welding, including a first base 1 and a second base 2. A wire releasing mechanism 3 is arranged on the first base 1, a wire guiding mechanism 4 is arranged on the top of the second base 2, a support plate 5 is arranged on the top of the second base 2, and a polygonal winding cylinder 6 is arranged on the front side of the support plate 5. First, the conductive wire is released by the wire releasing mechanism, and then the conductive wire is guided to the polygonal winding cylinder by the wire guiding mechanism and evenly wound around the polygonal winding cylinder.

[0029] The wire guiding mechanism 4 has several guide wheels. Some of the guide wheels close to the polygonal winding cylinder 6 have positioning grooves on their outer surfaces. The shape of the positioning grooves is a V-shaped groove. The positioning grooves are used to position the direction of the conductive wire, so that the triangular edges of the conductive wire are located in the positioning grooves, and then the conductive wire can be wound around the polygonal winding cylinder 6 with the edges facing up.

[0030] A mounting seat 7 is arranged on the top of the second base 2, a driving disc 8 is arranged on the top of the mounting seat 7. The driving disc 8 includes a rotating shaft 81, a turntable 82 and a motor 83. The motor 83 is arranged on the mounting seat 7. The turntable 82 is connected to the driving shaft of the motor 83 through the rotating shaft 81. The rotating shaft 81 is arranged on the driving shaft of the motor 83. The motor 83 is used to drive the rotating shaft 81 and the turntable 82 to rotate, so as to adjust the position of the battery piece on the driving disc 8. In this embodiment, the driving disc 8 is rotatably arranged on the top of the mounting seat 7, the motor 83 is fixedly arranged on the mounting seat 7, and the rotating shaft 81 is vertically fixedly arranged on the driving shaft of the motor 83.

[0031] There are two adjusting seats 9 arranged on the top of the driving disk 8. An adsorption platform 10 is arranged on the top of the adjusting seat 9. The adjusting seat 9 is a four-axis fine motion platform. The four-axis fine motion platform is a prior art and is composed of three modules and a rotating DD motor, and can perform fine adjustment in four directions on the adsorption platform 10, so that the adsorption platform 10 and the battery slice can be accurately fitted with the polygonal winding cylinder 6.

[0032] The adsorption platform 10 is below the polygonal winding cylinder 6. The adsorption platform 10 includes a housing 101. A vacuum cavity 102 is recessed downward on the top of the housing 101. An infrared LED circuit board 103 is arranged in the vacuum cavity 102. A sealing plate 104 is arranged on the top of the housing 101. The infrared LED circuit board 103 is assembled in the vacuum cavity 102, and the LED lamp beads face upward. And the LED lamp beads are small in volume and flexible in arrangement, which can make the heating of the battery slice more uniform. At the same time, when the battery slice is adsorbed and fixed on the adsorption platform 10, the infrared LED can be turned on to preheat the battery slice. For example, the battery slice is heated to 50-110 °C, and then the temperature is raised to the welding temperature after the battery slice and the conductive wire are aligned and in good contact. In this embodiment, a sealing plate 104 is fixedly arranged on the top of the housing 101.

[0033] The sealing plate 104 is a transparent quartz plate. A plurality of vacuum adsorption holes 105 for adsorbing the battery slice are opened on the top surface of the transparent quartz plate. A vacuum generator 106 is arranged on the outer wall of the housing 101. The air extraction end of the vacuum generator 106 is communicated with the vacuum cavity 102. The part of the adsorption platform 10 in contact with the battery slice uses a transparent or infrared wavelength light-absorbing material, such as quartz. When the infrared LED circuit board 103 operates, it can heat the battery slice, and the air in the vacuum cavity 102 is sucked by the vacuum generator 106, and then the battery slice is adsorbed on the adsorption platform 10 through the vacuum adsorption holes 105.

[0034] A vision camera 12 for reading the position of the battery slice on the adsorption platform 10 is arranged on the second base 2. The vision camera 12 is above the adjusting seat 9, and the position of the battery slice on the adsorption platform 10 is aligned through the vision camera 12. The position of the conductive wire on the polygonal winding cylinder 6 is fixed. Then the position data of the conductive wire is digitized. After the position of the battery slice on the adsorption platform 10 is located by the vision camera 12, it is compared with the position data of the conductive wire, and then the position of the battery slice is adjusted through the adjusting seat 9 to achieve alignment with the position of the conductive wire. Finally, the Z axis of the adjusting seat 9 is raised to make the battery slice and the conductive wire fit.

[0035] Working principle: When using the battery piece docking device for tandem cell welding, first release the conductive wire through the wire feeding mechanism 3, then guide the conductive wire to the polygonal winding cylinder 6 through the wire guiding mechanism 4 and wind the conductive wire evenly. Then place the battery piece on the adsorption platform 10. When the battery is adsorbed and fixed on the platform, the infrared LED can be turned on to preheat the battery piece. For example, the battery piece is heated to 50 - 110 °C. At this time, rotate the driving disk 8 to move the adsorption platform 10 below the polygonal winding cylinder 6, and then finely adjust the position of the adsorption platform 10 through the adjusting seat 9, so that the battery piece can accurately fit the conductive wire on the polygonal winding cylinder 6. Then, after the battery piece and the conductive wire are aligned and in good contact, heat up to the welding temperature. This kind of operation has a faster heating rate, can shorten the beat and improve the production capacity.

[0036] For the battery piece docking device for tandem cell welding in this application, the driving disk 8 can also use a linear module to convey the battery piece. The adjusting seat 9 and the adsorption platform 10 are installed on the moving block of the linear module, so as to convey the battery piece to below the polygonal winding cylinder 6 through the linear module.

[0037] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A cell sheet docking device for stacked grid cell welding, comprising a first base (1) and a second base (2), wherein a wire release mechanism (3) is provided on the first base (1), and a wire guide mechanism (4) is provided on the top of the second base (2), characterized in that: A support plate (5) is arranged on the top of the second base (2), a polygonal winding drum (6) is arranged on the front side of the support plate (5), a mounting seat (7) is arranged on the top of the second base (2), a driving disk (8) is arranged on the top of the mounting seat (7), an adjustment seat (9) is arranged on the top of the driving disk (8), an adsorption platform (10) is arranged on the top of the adjustment seat (9), and the adsorption platform (10) is below the polygonal winding drum (6).

2. The battery cell docking device for stacked grid battery welding according to claim 1, characterized in that: The driving disc (8) is arranged to rotate.

3. The battery cell docking device for stacked grid battery welding according to claim 1, characterized in that: The driving disc (8) adopts a linear module.

4. The battery cell butt joint device for stacked grid battery welding according to claim 1, characterized in that: The wire guide mechanism (4) has a plurality of guide wheels, and a portion of the guide wheels close to the polygonal winding drum (6) has a positioning groove on its outer surface, and the positioning groove is in the shape of a V-shaped groove.

5. The battery cell butt joint device for stacked grid battery welding according to claim 2, characterized in that: The driving disk (8) comprises a rotating shaft (81), a rotating disk (82) and a motor (83); the motor (83) is arranged on the mounting seat (7); the rotating disk (82) and the driving shaft of the motor (83) are connected via the rotating shaft (81); and the rotating shaft (81) is vertically arranged on the driving shaft of the motor (83).

6. The battery cell docking device for stacked grid battery welding according to claim 1, characterized in that: The adjustment seat (9) is a four-axis micro-motion platform.

7. The battery cell butt joint device for stacked grid battery welding according to claim 1, characterized in that: The adsorption platform (10) comprises a shell (101), the top of the shell (101) is recessed downwards to form a vacuum cavity (102), an infrared LED circuit board (103) is arranged in the vacuum cavity (102), and a sealing plate (104) is arranged on the top of the shell (101).

8. The battery cell butt joint device for stacked grid battery welding according to claim 7, characterized in that: The sealing plate (104) is a transparent quartz plate, and a plurality of vacuum adsorption holes (105) for adsorbing battery cells are provided on the top surface of the transparent quartz plate. A vacuum generator (106) is provided on the outer wall of the housing (101), and an exhaust end of the vacuum generator (106) is connected to the vacuum cavity (102).

9. The battery cell butt joint device for stacked grid battery welding according to claim 1, characterized in that: A visual camera (12) for reading the position of the battery cell on the adsorption platform (10) is arranged on the second base (2); the visual camera (12) is located above the adjustment seat (9).

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