Stacked gate battery piece welding device with winding reel secondary clamping function

Abstract

The stacked grid battery piece welding device with the winding reel secondary clamping function comprises a vertical base, a rotary motor, a winding reel, a workpiece fixing platform and a displacement platform, the workpiece fixing platform is installed on the displacement platform, a workpiece to be machined is fixed to the workpiece fixing platform, and the displacement platform is installed on the vertical base. The displacement platform conveys the workpiece fixing platform where a workpiece to be machined is fixed to a wiring station below the winding reel, the winding reel comprises a winding disc and a winding column installed on the winding disc, the rotating motor is installed on the side face of the vertical base, the winding reel is installed on the rotating motor through the detachable clamping device, and the rotating motor comprises a stator and a rotor. The detachable clamping device comprises a positioner installed at the end of the rotor and a positioning blind rivet installed on the back face of the wire spool, and the positioner is provided with an installation hole matched with the positioning blind rivet. By the adoption of the device, winding and alignment welding are independently operated, the winding reel can be rapidly and accurately disassembled and assembled, and the operation efficiency of workpiece welding is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cell manufacturing, in particular to a grid-stacked cell welding device with a winding drum secondary clamping function. Background Art

[0002] The stacked-grid battery is a relatively new battery structure. By eliminating the main grid and auxiliary grid, they replace them with a single, parallel current-collecting layer, directly extracting current from the battery and transmitting it to the conductive wire. This significantly reduces the amount of silver paste used, saves costs, and simplifies the battery manufacturing process. However, stacked-grid cells have many current-collecting layers. For example, an 182-stacked-grid cell has nearly 160 current-collecting layers, requiring 160 conductive wires to align and weld with them. Therefore, the alignment requirements between the cell and the conductive wires are extremely high. The existing conductive wire welding process first uses a wire feed system to prefabricate evenly spaced conductive wires, and then aligns and welds the cell.

[0003] The pending invention patent application 202411106332.8 provides a conductive wire welding device for stacked grid solar cells, which uses a structure with a separate winding drum and an adsorption platform to achieve convenient alignment and welding of the solar cells and the conductive wire. In the above-mentioned welding device, the winding speed of the winding drum can be increased to a higher winding efficiency by using a high-power motor, but the alignment and welding need to be aligned and welded one by one. In this way, the efficiency of winding prefabricated equally spaced conductive wires will be much higher than the welding efficiency, resulting in a mismatch between the front and rear production capacities. Therefore, the winding and alignment welding can be divided into two independent devices, which requires the winding drum to be quickly disassembled and assembled, and the positional accuracy of the disassembly and assembly must be guaranteed. Therefore, it is necessary to develop a technical solution that can be used for rapid disassembly and assembly of the winding drum and can also ensure high-precision alignment. Summary of the Invention

[0004] The purpose of the utility model is to provide a grid-stacked solar cell welding device with a secondary clamping function of a winding drum, so as to solve the problem of accurate positioning under the rapid disassembly and assembly of the winding drum.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A stacked grid cell welding device with a secondary winding drum clamping function includes a stand, a rotary motor, a winding drum, a workpiece fixing platform and a displacement platform. The workpiece fixing platform is installed on the displacement platform, and the workpiece to be processed is fixed on the workpiece fixing platform. The displacement platform transports the workpiece fixing platform with the workpiece to be processed to the wiring station below the winding drum. The winding drum includes a winding reel and a winding column installed on the winding reel. The rotary motor is installed on the side of the stand, and the winding drum is installed on the rotary motor through a detachable clamping device. The rotary motor includes a stator and a rotor. The detachable clamping device includes a matching mounting device respectively installed on the end of the rotor and the back of the winding reel, and the winding reel is installed on the end of the rotor through the matching mounting device.

[0007] Preferably, the mating installation device comprises a positioning rivet and a locator, wherein the locator has a positioning pin hole mating with the positioning rivet.

[0008] Furthermore, the positioning pin includes a head and a neck located behind the head, wherein the neck is concave, and the positioning pin hole is provided with a steel ball capable of cooperating with the concave neck and a supporting ring for supporting the steel ball so as to cooperate with the concave neck.

[0009] More preferably, the head is wedge-shaped.

[0010] Compared with existing technologies, the present invention offers the following advantages: Through the detachable connection between the winding drum and the rotary motor, the present invention enables independent winding and alignment welding operations, improving workpiece welding efficiency. The winding drum's secondary clamping function is achieved through mating mounting devices installed on the rotor end and the back of the winding drum, respectively. This coordinated installation allows for quick and precise assembly and disassembly of the winding drum, thereby ensuring welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the welding device of the utility model;

[0012] Figure 2 This is a schematic diagram of the overall structure of the clamping device of the welding device of the utility model;

[0013] Figure 3 This is a schematic diagram of the clamping base structure of the clamping device of the utility model;

[0014] Figure 4 It is a schematic diagram of the corresponding matching structure on the back of the winding drum;

[0015] Figure 5 It is a structural schematic diagram of the positioning pin inserted into the positioning pin hole.

[0016] In the figure: 1. Stand; 2. Rotating motor; 3. Winding reel; 4. Winding column; 5. Workpiece fixing platform; 6. Moving platform; 7. Film feeder; 8. Positioning pin; 9. Positioning pin hole; 21. Stator; 22. Rotor; 23. Positioner; 81. Neck; 82. Head; 91. Steel ball; 92. Top support ring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1 As shown, the stacked grid cell welding device with the secondary clamping function of the winding drum of the present invention includes a stand 1, a rotating motor 2, a winding drum, a workpiece fixing platform 5 and a displacement platform 6. The winding drum includes a winding disc 3 and a winding post 4. The conductive wire is wound on the winding surface formed by the winding post 4. The film feeder 7 sends the cell to the workpiece fixing platform 5 on the pre-installation station. After being adsorbed and fixed on the workpiece fixing platform 5, it is sent to the wiring station via the mobile platform 6. After being aligned with the conductive wire on the winding drum, the workpiece fixing platform on the wiring station is lifted up to make the cell contact with the conductive wire for welding.

[0021] In the above welding device, in order to solve the problem of matching the winding speed of the winding drum with the speed of the alignment and welding steps, the winding and alignment welding are divided into two independent devices, so the winding drum needs to be quickly disassembled. In the present utility model, the disassembly of the winding drum is achieved by a detachable clamping device between the winding drum and the rotating motor. Figure 2 and Figure 3 As shown, the winding drum includes a winding reel 3 and a winding post 4 mounted on the winding reel. The rotary motor 2 is mounted on the side of the stand 1. The winding drum is mounted on the rotary motor via a detachable clamping device. The rotary motor includes a stator 21 and a rotor 22. The stator is mounted on the stand 1 via a flange, and the free end of the rotor is mounted with a detachable clamping device. The detachable clamping device includes mating mounting devices mounted on the end of the rotor and the back of the winding drum, respectively. The mating mounting devices are used to mount the winding reel to the end of the rotor.

[0022] See 3 and Figure 4 The mating mounting device includes a positioning rivet 8 and a positioner 23, wherein the positioner 23 has a positioning pin hole 9 that cooperates with the positioning rivet 8. This positioner achieves rapid assembly and disassembly of the winding drum and high position repeatability. It should be understood that although the embodiment shows the positioner installed at the end of the rotor and the positioning rivet installed at the back of the winding drum, it should be understood that this arrangement is merely an example to illustrate the principle of the present invention. Conversely, installing the positioning rivet at the end of the rotor and the positioner at the back of the winding drum can also achieve the functions and effects of the present invention and should therefore be included in the scope of protection of the present invention.

[0023] After the positioning rivet 8 is inserted into the positioning pin hole 9, the position of the bobbin is determined so that it can be used to align with the workpiece. More preferably, the device of the present invention also includes a structure for maintaining the bobbin fixed on the locator. This structure can be a clamp, a snap-fit part, a cross bar or other structure. For example, a cross bar that can be clamped and disassembled is provided on the locator. When the bobbin is installed, the cross bar is installed to fix the bobbin on the locator. When the bobbin needs to be removed, the cross bar is disassembled. There are many known structures in the industry for the above-mentioned maintaining and fixing structure, which will not be described in detail here. However, as a preferred embodiment, the present invention provides a zero-point positioning system, which includes a matching structure of the positioning rivet 8 and the positioning pin hole 9. Specifically, if Figure 5As shown, the locating pin has a head 82 and a neck 81, with the neck being concave. Inside the locating pin hole, a steel ball 91 is positioned to engage the concave neck 81, and a support ring 92 is positioned to support the steel ball 91. When the locating pin is inserted into the locating pin hole, the support ring 92 pushes upward, causing the steel ball 91 to embed in the concave portion of the locating pin's neck, thereby securing the bobbin to the locator. To remove the bobbin, the support ring 92 is lowered, releasing the steel ball from the concave portion of the neck, allowing the locating pin to be removed from the locating pin hole. More preferably, the locating pin's head is wedge-shaped, making it easier to insert into the locating pin hole and improving production efficiency.

[0024] Anything not described in detail in the present invention is well known to those skilled in the art.

[0025] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A stacked grid cell welding device with a secondary winding drum clamping function, comprising a stand, a rotary motor, a winding drum, a workpiece fixing platform, and a displacement platform. The workpiece fixing platform is mounted on the displacement platform, and the workpiece to be processed is fixed on the workpiece fixing platform. The displacement platform transports the workpiece fixing platform with the workpiece to be processed to a wiring station below the winding drum. The winding drum includes a winding reel and a winding post mounted on the winding reel. The device is characterized in that: The rotary motor is installed on the side of the stand, and the winding drum is installed on the rotary motor through a detachable clamping device. The rotary motor includes a stator and a rotor. The detachable clamping device includes a matching mounting device respectively installed on the end of the rotor and the back of the winding drum. The winding drum is installed on the end of the rotor through the matching mounting device.

2. The grid-stacking solar cell welding device with a secondary bobbin clamping function according to claim 1, characterized in that: The matching installation device includes a positioning rivet and a locator, wherein the locator is provided with a positioning pin hole matching with the positioning rivet.

3. The grid-stacking solar cell welding device with a secondary bobbin clamping function according to claim 2, characterized in that: The positioning pin includes a head and a neck behind the head, wherein the neck is concave, and the positioning pin hole is provided with a steel ball capable of cooperating with the concave neck and a supporting ring for supporting the steel ball so as to cooperate with the concave neck.

4. The grid-stacking solar cell welding device with a secondary bobbin clamping function according to claim 3, characterized in that: The head is wedge-shaped.

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