Conductive wire and battery piece accurate positioning and welding device for stacked gate battery production and positioning method of conductive wire and battery piece accurate positioning and welding device

Abstract

The invention discloses a conductive wire and battery piece accurate positioning and welding device for stacked gate battery production and a positioning method thereof, and relates to the related technical field of stacked gate batteries, the conductive wire and battery piece accurate positioning and welding device comprises a first base and a second base, the first base is provided with a pay-off mechanism, and the top of the second base is provided with a wire guiding mechanism; a first mounting seat is arranged at the top of the second base, a first motor is arranged on the front side of the first mounting seat, a zero-point positioner is arranged on a rotating shaft of the first motor, and a polygonal winding reel is arranged at the front end of the zero-point positioner. Conductive wires are released through the pay-off mechanism, then the conductive wires are guided to the polygonal winding reel through the wire guiding mechanism and evenly wound, and then battery pieces are continuously conveyed to the position below the polygonal winding reel through the piece conveying mechanism and precisely attached to the conductive wires on the polygonal winding reel for welding. Therefore, the accuracy is better when the battery piece is welded.

Description

Technical Field

[0001] This invention relates to the field of stacked grid cells, and in particular to a device and method for precisely positioning and welding conductive wires and battery cells in the production of stacked grid cells. Background Technology

[0002] The method for welding conductive wires in stacked grid cells is as follows: First, a conductive wire is wound around a winding drum with positioning grooves. Then, the cell is raised by an adsorption platform so that the grid lines of the cell are in close contact with the conductive wire. At this time, a docking device is needed to control the cell and the conductive wire to adhere to each other. Finally, the cell is heated to complete the welding.

[0003] In some existing battery cell welding devices, operators need to precisely align the battery cell with the conductive adhesive before welding. However, manual calibration by the operator can easily cause deviations, which can affect the accuracy of battery cell welding. Summary of the Invention

[0004] To address the issue that existing battery cell welding devices require operators to precisely align the battery cells with conductive wires before welding, and that manual alignment by the operator can easily lead to deviations that affect the accuracy of battery cell welding, this invention provides a precise positioning welding device and method for conductive wires and battery cells used in the production of stacked grid cells.

[0005] This invention provides a device and method for precise positioning and welding of conductive wires and battery cells in the production of stacked grid cells, employing the following technical solution: A device for precisely positioning and welding conductive wires and battery cells in the production of stacked-grid solar cells includes a first base and a second base. The first base has a wire feeding mechanism, and the top of the second base has a wire guiding mechanism. A first mounting seat is located on the top of the second base. A first motor is located on the front side of the first mounting seat, and a zero-point locator is located on the rotating shaft of the first motor. A polygonal winding drum is located at the front end of the zero-point locator, and a wire clamping fixture for fixing the wire end is located on the polygonal winding drum. A second mounting seat is located on the top of the second base, and a cell feeding mechanism is located on the top of the second mounting seat, below the polygonal winding drum. Preferably, the cell feeding mechanism is rotatably mounted on the top of the second mounting seat. Preferably, the first mounting seat is fixedly mounted on the top of the second base. Preferably, the rotating shaft of the first motor is fixedly mounted with a zero-point locator. Preferably, the wire clamping fixture for fixing the wire end is fixedly mounted on the polygonal winding drum. Preferably, the second mounting seat is fixedly mounted on the top of the second base.

[0006] The above technical solution involves first releasing the conductive wire through a wire feeding mechanism, then guiding the conductive wire onto a polygonal winding drum through a wire guiding mechanism, and then evenly winding the conductive wire. Subsequently, the battery cell is placed on an adsorption platform. At this time, the battery cell is continuously transported to the bottom of the polygonal winding drum by a cell feeding mechanism, and the battery cell is brought into contact with the cell feeding mechanism, so that the battery cell can be accurately attached to the conductive wire on the polygonal winding drum and welded.

[0007] Optionally, in the above-mentioned device for precise positioning and welding of conductive wires and cells in the production of stacked grid cells, the feeding mechanism is a rotary feeding mechanism or a feeding mechanism using a linear module.

[0008] Optionally, in the above-mentioned device for precise positioning and welding of conductive wires and battery cells in the production of stacked grid cells, the first mounting base is fixed on the second base by fasteners, and the first mounting base is on one side of the wire mechanism.

[0009] The above technical solution facilitates the guidance of conductive wires onto the polygonal winding drum via the wire mechanism, and then the conductive wires are evenly wound onto the polygonal winding drum by its rotation.

[0010] Optionally, in the above-mentioned device for precise positioning and welding of conductive wire and battery cell in the production of stacked grid batteries, the polygonal winding cylinder includes a polygonal plate, and a plurality of support rods are distributed along the circumference of the front side of the polygonal plate, and the distance between two adjacent support rods is not less than the width of the battery cell, the length of the support rod is not less than the length of the battery cell, and the ends of the plurality of support rods away from the polygonal plate are connected by a connecting plate.

[0011] With the above technical solution, when the first motor is running, it drives the zero-point positioner and the polygonal plate to rotate. At this time, the polygonal plate drives several support rods to wind the conductive wire.

[0012] Optionally, in the above-mentioned device for precise positioning and welding of conductive wires and battery cells in the production of stacked grid batteries, the outer wall of the support rod is provided with a number of positioning grooves for positioning the conductive wires in a straight line.

[0013] The above technical solution uses a positioning groove to position the conductive wire as it is wound around the support rod, thereby ensuring that the conductive wire is evenly wound around the support rod.

[0014] Optionally, in the above-mentioned device for precise positioning and welding of conductive wires and battery cells in the production of stacked grid cells, the number of wire clamping fixtures is at least two, and the wire clamping fixtures are used to fix the starting end and the ending end of the conductive wire, respectively.

[0015] The above technical solution allows for easy fixing of the starting and ending ends of the conductive wire using a wire clamping fixture, thereby securing the conductive wire to the polygonal winding drum.

[0016] Optionally, in the above-mentioned device for precise positioning and welding of conductive wires and battery cells in the production of stacked-grid batteries, the feeding mechanism includes a second motor and a vacuum generator. The second motor is disposed on the top of the second mounting base. A turntable is disposed on the rotating shaft of the second motor. An adjusting component is disposed on the top surface of the turntable. A grooved plate is disposed on the top of the adjusting component. The suction end of the vacuum generator communicates with the inner wall of the grooved plate. An infrared LED circuit board is disposed inside the grooved plate. A transparent quartz plate is disposed on the top of the grooved plate, and a plurality of vacuum adsorption holes for adsorbing battery cells are opened on the top surface of the transparent quartz plate. Preferably, the second motor is fixedly disposed on the top of the second mounting base. Preferably, a turntable is fixedly disposed on the rotating shaft of the second motor. Preferably, an infrared LED circuit board is fixedly disposed inside the grooved plate. Preferably, a transparent quartz plate is fixedly disposed on the top of the grooved plate.

[0017] The above technical solution involves first placing the battery cell on the grooved plate, then using a vacuum generator to extract the air from the grooved plate, and then adsorbing the battery cell onto the grooved plate through the vacuum adsorption holes. Next, a second motor drives the turntable and adjustment assembly to rotate, and the adjustment assembly moves the grooved plate and the battery cell, thereby sending the battery cell directly below the polygonal winding drum for alignment and welding.

[0018] Another technical solution proposed in this invention: a device and method for precise positioning and welding of conductive wires and battery cells in the production of stacked grid cells, comprising the following steps: S101: After the winding is completed, the visual system takes a picture and identifies the position of the conductive wire, defining coordinate data for the position of the conductive wire; S102: After the solar cell is placed into the feeding mechanism, the system takes a picture to identify the position of the mark point on the solar cell, compares the coordinate data of the solar cell with the coordinate data of the conductive wire, and provides a compensation amount. The controller and the vision system transmit data through open communication. After the controller receives the data compensation amount provided by the vision system, it controls the micro-motion platform to make adjustments in the x, y, and w directions. After adjustment, a second recognition is performed. After there is no error with the mark point, the alignment is completed.

[0019] In summary, the present invention has at least one of the following beneficial effects: The conductive wire is released by the wire feeding mechanism and then guided to the polygonal winding drum by the wire guiding mechanism and wound evenly. Subsequently, the cell feeding mechanism continuously feeds the cell to the bottom of the polygonal winding drum and precisely attaches it to the conductive wire on the polygonal winding drum for welding. Therefore, the cell welding is more precise.

[0020] The wire feeding mechanism and the conductor winding mechanism ensure a stable supply and uniform winding of the conductive wire; The precise positioning capability of the polygonal winding spool ensures that the conductive wire is accurately wound onto the designated position on the spool. The cell feeding mechanism enables precise positioning and synchronous transport of the solar cells, achieving efficient and stable welding operations; Through the coordinated operation and precise control of costs by the aforementioned institutions, the accuracy of cell welding can be significantly improved, or the precise welding between the cell and the conductive wire can be ensured. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a partial three-dimensional structural diagram of the zero-point locator of the present invention; Figure 3 This is a partial three-dimensional structural schematic diagram of the polygonal winding cylinder of the present invention; Figure 4 This is a partial three-dimensional unfolded structural diagram of the feeding mechanism of the present invention; Figure 5 This is a partial three-dimensional cross-sectional view of the grooved plate of the present invention.

[0022] In the diagram: 1. First base; 2. Second base; 3. Wire feeding mechanism; 4. Wire guiding mechanism; 5. First mounting base; 6. First motor; 7. Zero point locator; 8. Polygonal winding drum; 81. Polygonal plate; 82. Support rod; 83. Positioning groove; 84. Connecting plate; 9. Wire clamping fixture; 10. Second mounting base; 11. Sheet feeding mechanism; 111. Second motor; 112. Vacuum generator; 113. Turntable; 114. Adjustment component; 115. Groove plate; 116. Infrared LED circuit board; 117. Transparent quartz plate; 118. Vacuum adsorption hole. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0024] Please refer to the attached diagram in the instruction manual. Figure 1-5 The present invention provides an embodiment of a device for precise positioning and welding of conductive wires and battery cells in the production of stacked grid batteries, comprising a first base 1 and a second base 2. 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. The wire release mechanism 3 facilitates the release of the conductive wires, and the wire guide mechanism 4 guides the wires.

[0025] The top of the second base 2 is provided with a first mounting seat 5, which is fixed to the second base 2 by fasteners. The first mounting seat 5 is located on one side of the wire guide mechanism 4, and the fasteners facilitate the installation of the first mounting seat 5 on the second base 2. In this embodiment, the top of the second base 2 is fixedly provided with the first mounting seat 5.

[0026] A first motor 6 is mounted on the front side of the first mounting base 5. A zero-point positioner 7 is mounted on the rotating shaft of the first motor 6. The zero-point positioner is a commonly used tooling fixture in machinery or machine tools. Its main function is to enable quick assembly and disassembly of parts with high positional repeatability after assembly and disassembly. In this embodiment, the zero-point positioner 7 is fixedly mounted on the rotating shaft of the first motor 6.

[0027] The zero-point locator 7 has a polygonal winding drum 8 at its front end. The polygonal winding drum 8 includes a polygonal plate 81. Several support rods 82 are distributed along the circumference of the front side of the polygonal plate 81. The distance between two adjacent support rods 82 is not less than the width of the battery cell. The length of the support rod 82 is not less than the length of the battery cell. The ends of the several support rods 82 away from the polygonal plate 81 are connected by a connecting plate 84. When the first motor 6 runs, it drives the zero-point locator 7 and the polygonal plate 81 to rotate. At this time, the polygonal plate 81 drives the several support rods 82 to wind the conductive wire.

[0028] The outer wall of the support rod 82 has several positioning grooves 83 at equal intervals in a straight line for positioning the conductive wire. The positioning grooves 83 position the conductive wire when it is wound on the support rod 82, thereby promoting the conductive wire to be wound evenly on the support rod 82.

[0029] Two wire clamping fixtures 9 are provided on the polygonal winding drum 8 to fix the wire ends. The wire clamping fixtures 9 are used to fix the starting end and the ending end of the conductive wire, respectively. The wire clamping fixtures 9 facilitate the fixing of the starting end and the ending end of the conductive wire, thereby fixing the conductive wire to the polygonal winding drum 8. In this embodiment, the wire clamping fixtures 9 for fixing the wire ends are fixedly provided on the polygonal winding drum 8.

[0030] A second mounting base 10 is provided on the top of the second base 2, and a feeding mechanism 11 is provided on the top of the second mounting base 10. The feeding mechanism 11 is located below the polygonal winding cylinder 8. The feeding mechanism 11 includes a second motor 111 and a vacuum generator 112. The second motor 111 is located on the top of the second mounting base 10, and a turntable 113 is provided on the rotating shaft of the second motor 111. An adjustment component 114 is provided on the top surface of the turntable 113, and a grooved plate 115 is provided on the top of the adjustment component 114. The suction end of the vacuum generator 112 communicates with the inner wall of the grooved plate 115. An infrared LED circuit board 116 is provided inside the grooved plate 115, and infrared lamps or hot air can also be used to heat the battery cells inside the grooved plate 115. In this embodiment, the feeding mechanism 11 is rotatably provided on the top of the second mounting base 10. In this embodiment, the second mounting base 10 is fixedly provided on the top of the second base 2. In this embodiment, the second motor 111 is fixedly provided on the top of the second mounting base 10. In this embodiment, a turntable 113 is fixedly mounted on the rotating shaft of the second motor 111. In this embodiment, an infrared LED circuit board 116 is fixedly mounted inside the groove plate 115.

[0031] A transparent quartz plate 117 is provided on the top of the grooved plate 115, and the top surface of the transparent quartz plate 117 has several vacuum adsorption holes 118 for adsorbing the battery cells. First, the battery cells are placed on the grooved plate 115, and then the air inside the grooved plate 115 is extracted by the vacuum generator 112. Then, the battery cells are adsorbed onto the grooved plate 115 through the vacuum adsorption holes 118. Then, the second motor 111 drives the turntable 113 and the adjusting component 114 to rotate, and the adjusting component 114 drives the grooved plate 115 and the battery cells to move, thereby sending the battery cells directly below the polygonal winding cylinder 8 for alignment and welding. In this embodiment, the transparent quartz plate 117 is fixedly provided on the top of the grooved plate 115.

[0032] In this embodiment, the feeding mechanism can also be a feeding mechanism using a linear module to transport the battery cells.

[0033] In summary: First, the conductive wire is released through the wire release mechanism 3, and then the conductive wire is guided to the polygonal winding drum 8 through the wire guide mechanism 4 and the conductive wire is wound evenly. Then, the battery cell is placed on the adsorption platform. At this time, the battery cell is continuously transported to the bottom of the polygonal winding drum 8 through the cell feeding mechanism 11 and the battery cell is brought into contact with the cell feeding mechanism 11, so that the battery cell can be accurately bonded to the conductive wire on the polygonal winding drum 8 for welding.

[0034] To better demonstrate a precise positioning and welding device for conductive wires and solar cells in the production of stacked-grid solar cells, this embodiment proposes a positioning method for the device, comprising the following steps: Step 1: After the winding is completed, take a picture for visual recognition and define coordinate data for the position of the conductive wire; Step Two: After the solar cell is placed onto the feeding mechanism 11, the vision system takes a picture to identify the position of the mark point on the solar cell. The coordinate data of the solar cell is compared with the coordinate data of the conductive wire, and the system provides a compensation amount. Data is transmitted between the controller and the vision system via open communication. After receiving the data compensation amount from the vision system, the controller controls the micro-motion platform to adjust in the x, y, and w directions. After adjustment, a second recognition is performed, and alignment is completed once there is no error with the mark point.

[0035] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A device for precise positioning and welding of conductive wires and battery cells in the production of stacked grid cells, comprising a first base (1) and a second base (2), wherein a wire feeding mechanism (3) is provided on the first base (1) and a wire guiding mechanism (4) is provided on the top of the second base (2), characterized in that: The top of the second base (2) is provided with a first mounting seat (5), the front side of the first mounting seat (5) is provided with a first motor (6), the rotating shaft of the first motor (6) is provided with a zero point locator (7), the front end of the zero point locator (7) is provided with a polygonal winding drum (8), the polygonal winding drum (8) is provided with a wire clamping fixture (9) for fixing the wire end, the top of the second base (2) is provided with a second mounting seat (10), the top of the second mounting seat (10) is provided with a feeding mechanism (11), the feeding mechanism (11) is below the polygonal winding drum (8).

2. The device for precise positioning and welding of conductive wires and battery cells in the production of stacked grid cells according to claim 1, characterized in that: The first mounting base (5) is fixed to the second base (2) by fasteners, and the first mounting base (5) is on one side of the wire mechanism (4).

3. The device for precise positioning and welding of conductive wires and battery cells in the production of stacked grid cells according to claim 1, characterized in that: The polygonal winding cylinder (8) includes a polygonal plate (81). Several support rods (82) are arranged along the circumference of the front side of the polygonal plate (81). The distance between two adjacent support rods (82) is not less than the width of the battery cell. The length of the support rod (82) is not less than the length of the battery cell. The ends of the several support rods (82) away from the polygonal plate (81) are connected by a connecting plate (84).

4. The device for precise positioning and welding of conductive wires and battery cells in the production of stacked grid cells according to claim 3, characterized in that: The outer wall of the support rod (82) has several positioning grooves (83) for positioning the conductive wire in a straight line.

5. The device for precise positioning and welding of conductive wires and battery cells in the production of stacked grid cells according to claim 1, characterized in that: The number of the wire clamping fixtures (9) is at least two, and the wire clamping fixtures (9) are used to fix the starting end and the ending end of the conductive wire, respectively.

6. The device for precise positioning and welding of conductive wires and battery cells in the production of stacked grid cells according to claim 1, characterized in that: The feeding mechanism (11) includes a second motor (111) and a vacuum generator (112). The second motor (111) is located on the top of the second mounting base (10). The rotating shaft of the second motor (111) is provided with a turntable (113). The top surface of the turntable (113) is provided with an adjustment component (114). The top of the adjustment component (114) is provided with a grooved plate (115). The suction end of the vacuum generator (112) is connected to the inner wall of the grooved plate (115). An infrared LED circuit board (116) is provided inside the grooved plate (115). A transparent quartz plate (117) is provided on the top of the grooved plate (115), and the top surface of the transparent quartz plate (117) is provided with a plurality of vacuum adsorption holes (118) for adsorbing battery cells.

7. A positioning method for a precise positioning and welding device for conductive wires and battery cells in the production of stacked grid cells as described in any one of claims 1-6, comprising the following steps: S101: After the winding is completed, the visual system takes a picture and identifies the position of the conductive wire, defining coordinate data for the position of the conductive wire; S102: After the battery cell is placed into the feeding mechanism (11), the visual camera identifies the position of the mark point on the battery cell, compares the coordinate data of the battery cell with the coordinate data of the conductive wire, and the system provides a compensation amount; the controller and the vision system transmit data through open communication, and after the controller obtains the data compensation amount given by the vision system, it controls the micro-motion platform to make adjustments in the x, y, and w directions; after adjustment, a second recognition is performed, and alignment is completed after there is no error with the mark point.

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