Precise positioning solar cell welding auxiliary device

Abstract

The utility model discloses a solar cell piece welding auxiliary device of accurate positioning, specifically relates to solar cell piece welding technical field, including base, the top of base is provided with the material guiding and positioning subassembly, the material guiding and positioning subassembly includes the carousel of setting at the top of base, the top of carousel is provided with a plurality of spacers, and the top of each spacer is provided with the rotary drum for preventing the splash of welding slag respectively. The utility model discloses through the spring and the clamping plate cooperation of rotary drum inner wall, can form stable and moderate clamping force to solar cell piece, avoids the hidden crack or broken of the artificial feeding when the hand pressure, solder strip pulling force, realizes the preliminary accurate positioning.

Description

Technical Field

[0001] This utility model relates to the field of solar cell welding technology, and more specifically, to a precise positioning auxiliary device for solar cell welding. Background Technology

[0002] Solar cells are the core component of photovoltaic power generation systems. Their core function is to directly convert sunlight into electrical energy through the "photovoltaic effect". They are semiconductor devices, with silicon (monocrystalline silicon and polycrystalline silicon) being the mainstream material, and thin film materials (such as cadmium telluride and copper indium gallium selenide) being less common.

[0003] Solar cells need to be "string-welded" (connecting multiple cells into a string using welding ribbons) and "laminated" (combining the strings into modules) to form usable photovoltaic modules. In this process, welding auxiliary devices (such as automated welding machines, positioning fixtures, laser welding systems, etc.) are essential. During manual feeding, hand pressure, welding ribbon tension, or positioning deviations can all cause microcracks or direct breakage of the cells. Therefore, a precise positioning solar cell welding auxiliary device is needed to ensure positioning accuracy and minimize damage. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a precise positioning solar cell welding auxiliary device, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a precise positioning solar cell welding auxiliary device, including a base, and a material guiding and positioning component is provided on the top of the base;

[0006] The material guiding and positioning assembly includes a turntable disposed on the top of the base, and a plurality of pads are disposed on the top of the turntable, and a rotating cylinder for preventing welding slag from splashing is disposed on the top of each of the pads.

[0007] The rotating drum is provided with a support frame in the middle for lifting materials. Several through holes are provided on the support frame, and a cavity for storing welding slag is formed between the support frame and the pad.

[0008] Optionally, in a possible implementation, the inner wall of the rotating cylinder is provided with a plurality of springs, and one end of each spring is respectively provided with a clamping plate. A first gear ring is sleeved on the outer side of the rotating cylinder. The rotating cylinder is rotatably connected to the pad. A second gear ring is provided at the bottom of the turntable. A drive gear is provided on the outer side of the turntable. A limit gear is provided on the outer side of the first gear ring. A servo motor is provided at the bottom of the limit gear and the drive gear respectively. Each servo motor is mounted on the base by bolts.

[0009] The technical effects and advantages of this utility model are as follows:

[0010] By using the springs and clamping plates on the inner wall of the rotating drum, a stable and appropriate clamping force can be formed on the solar cells, avoiding microcracks or breakage caused by hand pressure and welding strip pulling force during manual feeding, and achieving preliminary accurate positioning.

[0011] By cooperating with the servo motor, the first gear ring, and the second gear ring, the turntable station can be easily switched. At the same time, it can drive the drum to rotate, thereby adjusting the angle of the battery cell during welding and greatly reducing the risk of battery cell damage caused by positioning deviation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0013] Figure 1 This is a front view of the overall structure of this utility model.

[0014] Figure 2 This is a top view of the overall structure of this utility model.

[0015] Figure 3 This is a schematic diagram showing the base, turntable, pad, support frame, and first gear ring of this utility model assembled together.

[0016] Figure 4 This is a schematic diagram of the pad, rotating cylinder, support frame, first gear ring, spring, clamping plate and limiting gear of this utility model.

[0017] The attached diagram is labeled as follows: 1. Base; 2. Turntable; 3. Pad; 4. Rotary cylinder; 5. Support frame; 6. Spring; 7. Clamping plate; 8. First gear ring; 9. Second gear ring; 10. Drive gear; 11. Limit gear; 12. Servo motor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] The precise positioning solar cell welding auxiliary device provided in this embodiment, such as... Figure 1 , Figure 2 As shown, it includes a base 1, and a material guiding and positioning component is provided on the top of the base 1 to realize the automated feeding, positioning and welding assistance of solar cells.

[0020] The material guiding and positioning assembly includes a turntable 2 horizontally set on the top of the base 1. Several pads 3 are evenly distributed on the top of the turntable 2 along the circumferential direction. The pads 3 are made of high-temperature resistant ceramic material and are fixed to the turntable 2 by welding. Each pad 3 is rotatably connected to a rotating cylinder 4 to prevent welding slag from splashing. The rotating cylinder 4 is a cylindrical structure.

[0021] A support frame 5 for supporting the solar cells is coaxially mounted in the middle of the rotating drum 4. The support frame 5 has a cross-shaped structure. Figure 3 As shown, the support frame 5 has several through holes with a diameter of 5mm, and a cavity is formed between the support frame 5 and the pad 3 to store the welding slag generated during the welding process.

[0022] like Figure 4 As shown, several springs 6 are evenly distributed along the circumference of the inner wall of the rotating cylinder 4, and one end of each spring 6 is fixed with a clamping plate 7 by welding, which is used to avoid scratching the surface when clamping the solar cell.

[0023] The outer side of the rotating drum 4 is fitted with a first gear ring 8. The rotating drum 4 and the pad 3 are rotatably connected by bearings, ensuring that the rotating drum 4 can rotate flexibly around its own axis.

[0024] The bottom of the turntable 2 is fixed with a second gear ring 9 by bolts, and the outer side of the turntable 2 is meshed with a drive gear 10; the outer side of the first gear ring 8 is meshed with a limit gear 11, and the bottom of the limit gear 11 and the drive gear 10 are respectively connected to a servo motor 12 through a coupling.

[0025] The servo motor 12 driving the drive gear 10 rotates to rotate the second gear ring 9 and the turntable 2, thereby switching between the various pad 3 workstations. The servo motor 12 driving the limit gear 11 rotates to rotate the first gear ring 8 and the rotating drum 4, thereby adjusting the welding angle of the solar cells. Each servo motor 12 is bolted to the base 1 and can be coordinated and controlled by a Siemens S7-1214C PLC controller.

[0026] The specific working principle is as follows: the solar cell to be welded is placed on the support frame 5 by a person or a robotic arm. At this time, the spring 6 on the inner wall of the rotating drum 4 is in a natural state. The clamping plate 7 automatically clamps the edge of the solar cell under the pre-tightening force of the spring 6, thus achieving initial positioning.

[0027] Workstation switching: The servo motor 12, which drives the active gear 10, is started by the PLC control. The active gear 10 drives the second gear ring 9 and the turntable 2 to rotate, transferring the pad 3 containing the battery cells to the welding station. The servo motor 12 then stops and self-locks.

[0028] According to the welding requirements, the servo motor 12 of the limit gear 11 is started by the PLC control. The limit gear 11 drives the first gear ring 8 and the rotating drum 4 to rotate to a preset angle such as 0°, 90°, etc., so that the edge of the battery cell to be welded is aligned with the welding gun. The servo motor 12 stops and self-locks.

[0029] During the welding process, the rotating drum 4 prevents the welding slag from splashing outwards; some small welding slags fall through the through holes on the support frame 5 into the cavity between the support frame 5 and the pad plate 3, thus achieving welding slag collection.

[0030] After welding is completed, servo motor 12 drives turntable 2 to rotate, transferring the welded battery cell to the unloading station, where manual or robotic arm removes the battery cell, completing one welding auxiliary cycle.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A precise positioning solar cell welding auxiliary device, comprising a base (1), characterized in that: The top of the base (1) is provided with a material guiding and positioning component; The material guiding and positioning assembly includes a turntable (2) set on the top of the base (1), and a number of pads (3) are set on the top of the turntable (2), and each of the pads (3) is respectively set with a rotating cylinder (4) for preventing welding slag from splashing. The rotating drum (4) is provided with a support frame (5) for lifting materials in the middle.

2. The precise positioning solar cell welding auxiliary device according to claim 1, characterized in that: The inner wall of the rotating drum (4) is provided with a number of springs (6), and each spring (6) has a clamp (7) at one end.

3. The precise positioning solar cell welding auxiliary device according to claim 2, characterized in that: The outer side of the rotating cylinder (4) is fitted with a first toothed ring (8), and the rotating cylinder (4) is rotatably connected to the pad (3).

4. The precise positioning solar cell welding auxiliary device according to claim 3, characterized in that: The bottom of the turntable (2) is provided with a second gear ring (9), and the outer side of the turntable (2) is provided with a drive gear (10).

5. The precise positioning solar cell welding auxiliary device according to claim 4, characterized in that: A limiting gear (11) is provided on the outer side of the first gear ring (8). A servo motor (12) is provided at the bottom of the limiting gear (11) and the driving gear (10), and each of the servo motors (12) is mounted on the base (1) by bolts.

6. The precise positioning solar cell welding auxiliary device according to claim 1, characterized in that: The support frame (5) has several through holes, and a cavity for storing welding slag is formed between the support frame (5) and the pad (3).

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