A busbar and solar photovoltaic panel welding device

Abstract

The application relates to a welding device for a busbar and a solar photovoltaic panel and belongs to the technical field of photovoltaic panels. The welding device comprises a welding platform, a placing platform, a photovoltaic panel suction accessory which is arranged on the top of the placing platform in a lifting mode, and a welding assembly which is arranged on the top of the placing platform in a lifting mode; a first pulling and rolling leveling mechanism which is arranged on one side of the welding platform and is used for feeding and leveling the busbar; a cutting mechanism which is arranged between the first pulling and rolling leveling mechanism and the welding platform and is used for cutting the busbar; a bending mechanism which is arranged between the cutting mechanism and the welding platform and is used for bending the busbar; a conveying mechanism which is slidably arranged on one side of the welding platform and is used for conveying the busbar to the bottom of the welding platform and corresponding to the photovoltaic panel; and a clamping and moving mechanism which is arranged on the top of the first pulling and rolling leveling mechanism, the cutting mechanism and the bending mechanism and is used for clamping and conveying the busbar. The application realizes automatic welding and assembly of the solar photovoltaic panel and the busbar.

Description

Technical Field

[0001] This application relates to the field of photovoltaic panel technology, and in particular to a busbar and solar photovoltaic panel welding equipment. Background Technology

[0002] A solar photovoltaic (PV) panel is a device that directly converts sunlight into electrical energy. The core of a PV panel is a silicon wafer, but a single silicon wafer has very weak power generation capacity. Dozens of solar cells need to be connected by circuitry, encapsulated between glass, EVA, and a backsheet, and fitted with an aluminum frame to ultimately create a PV panel that can provide sufficient voltage and power.

[0003] The function of a busbar is to connect dozens of adjacent solar cells in series. The current from one cell flows to the next through the busbar, accumulating until a sufficiently strong current output is formed at the junction box of the photovoltaic panel. A complete photovoltaic strip has two sets of photovoltaic panels and three sets of busbars. The busbars located on opposite sides of the photovoltaic strip are complete busbars. The busbars located between adjacent sets of photovoltaic panels need to be cut and bent to form a shape like... Figure 1 The structure is shown. To address the aforementioned production needs, an automated welding device for busbars and photovoltaic panels is provided. Summary of the Invention

[0004] To achieve automated welding and assembly of solar photovoltaic panels and busbars, this application provides a welding device for busbars and solar photovoltaic panels.

[0005] The technical solution adopted in this application for a welding equipment for busbars and solar photovoltaic panels is as follows: A welding device for busbars and solar photovoltaic panels includes a welding platform, a placement platform, a photovoltaic panel adsorption component that is lifted and disposed on the top of the placement platform, and a welding assembly that is lifted and disposed on the top of the placement platform. The first pull-coil leveling mechanism is located on one side of the welding platform and is used for feeding and leveling the busbar. A cutting mechanism is disposed between the first coiling and leveling mechanism and the welding platform, and is used for cutting the busbar. A bending mechanism is disposed between the cutting mechanism and the welding platform for bending the busbar; A conveying mechanism, slidably mounted on one side of the welding platform, is used to convey the busbar to the bottom of the welding platform corresponding to the photovoltaic panel. A clamping and moving mechanism is disposed on top of the first pulling and leveling mechanism, the cutting mechanism, and the bending mechanism, and is used to clamp the conveyor belt.

[0006] By adopting the above technical solution, the feeding, leveling, cutting, bending, conveying, and welding of the busbar to the solar photovoltaic panel are realized. Specifically, the welding platform can place the photovoltaic panel and perform welding. The first pulling and leveling mechanism feeds and levels the busbar, the cutting mechanism cuts the busbar, the bending mechanism bends the busbar, the conveying mechanism conveys the busbar to the welding position, and the clamping and moving mechanism clamps and conveys the busbar.

[0007] Optionally, the first winding and leveling mechanism includes a winding wheel with a busbar wound around it, a cutting component disposed on one side of the winding wheel, a pulling component for pulling the busbar, and a first placement plate for leveling and placing the busbar. A flattening component for pressing the busbar is installed on the top of the first placement plate. The cutting assembly includes a cutting base, a cutting pull block that is lifted and mounted on the cutting base, a cutting pressure block that is rotatably mounted on the cutting base and has one end slidingly engaged with the cutting pull block, and a guide wheel assembly disposed on the cutting base. The cutting pressure block has a cutting head disposed at the other end away from the cutting pull block.

[0008] By adopting the above technical solution, the winding wheel can be wound with the busbar, which facilitates the storage of the busbar; the pulling component pulls the busbar for feeding; the first placement plate and the flattening component cooperate to flatten the busbar and ensure that the busbar is flat; the cutting component's cutting pull block rises and falls, driving the cutting pressure block to rotate, so that the cutting head cuts the busbar; and the guide wheel group can guide the conveying of the busbar.

[0009] Optionally, the guide wheel assembly includes a guide wheel assembly, multiple straightening wheel assemblies, and a drive wheel assembly. The axis of the guide wheel assembly is perpendicular to the conveying direction of the busbar. The multiple straightening wheel assemblies are arranged alternately on both sides of the busbar along the conveying direction of the busbar. The bending amplitude applied to the busbar by the straightening wheel assembly gradually decreases along the conveying direction.

[0010] By adopting the above technical solution, the guide wheel set can keep the bus belt conveying direction correct. Multiple straightening wheel sets, which are staggered on both sides of the bus belt along the conveying direction and whose bending amplitude gradually decreases, can gradually straighten the bus belt. The drive wheel set can drive the bus belt conveying. Overall, the stable conveying and effective straightening of the bus belt are achieved, providing a good bus belt condition for subsequent welding.

[0011] Optionally, the cutting mechanism includes a second placement plate and multiple sets of cutting heads that are lifted and mounted on the second placement plate. When the cutting heads are lifted to cut, the busbar is pressed against the second placement plate by a clamping and moving mechanism.

[0012] By adopting the above technical solution, the multiple cutting heads of the cutting mechanism can be lifted and installed on the second placement plate. When the cutting head is lifted to cut, the clamping and moving mechanism presses the busbar onto the second placement plate, which can realize the cutting of the busbar and ensure the stability of the busbar position during the cutting process, thereby improving the cutting accuracy.

[0013] Optionally, the bending mechanism includes a third placement plate, a hot press head rotatably disposed on the third placement plate, and bending columns installed on the clamping and moving mechanism and corresponding one-to-one with the hot press head. The side wall of the bending column has a shaping surface for the bending abutment of the busbar.

[0014] By adopting the above technical solution, a bending mechanism can be set up to bend the busbar. The third placement plate is used to place the busbar. The hot press head rotates and cooperates with the bending column corresponding to the hot press head, which can bend the busbar and abut against the shaping surface of the bending column, thereby realizing the shaping and bending of the busbar, which facilitates the subsequent welding of the busbar to the solar photovoltaic panel.

[0015] Optionally, the hot press head includes a hot press drive component and a hot press plate disposed on the output shaft of the hot press drive component. The output shaft of the hot press drive component and the busbar are located at the same height. A heating rod for heating the busbar is disposed inside the hot press plate. A vacuum channel penetrating the shaping surface is disposed on the bending column. A vacuum generator is externally connected to the vacuum channel. A coolant channel is also integrated inside the bending column.

[0016] By adopting the above technical solution, the output shaft of the hot-press drive component and the busbar are located at the same height. A heating rod is installed inside the hot-press plate to heat the busbar, which facilitates the bending operation. A vacuum channel is provided on the bending column that penetrates the shaping surface and is connected to an external vacuum generator, which can adsorb the busbar and make it fit the shaping surface better. A coolant channel is integrated inside the bending column to cool the busbar and ensure the stability of the shape after bending.

[0017] Optionally, the bending column is further provided with limiting components on opposite sides of the shaping surface. The limiting components include a limiting shell fixed to the bending column, a limiting elastic member disposed on the limiting shell, and a limiting block connected to the other end of the limiting elastic member. The limiting block is provided with a guide surface for the heating pressure plate to push and abut on the side away from the shaping surface.

[0018] By adopting the above technical solution, during the bending process of the busbar, the hot press plate pushes the guide surface on the limiting block, and the limiting elastic element is compressed. The limiting block can limit the busbar, reducing the situation where the busbar rebounds after the hot press plate is reset, which would cause difficulties in vacuum channel adsorption. This allows the busbar to better fit the shaping surface to complete the bending.

[0019] Optionally, the clamping and moving mechanism includes a clamping bracket, a clamping fixing plate slidably mounted on the clamping bracket, and clamping components spaced apart on the clamping plate; The clamping assembly includes a clamping pusher disposed on the clamping fixing plate, a clamping sliding plate connected to the output shaft of the clamping pusher, and an adsorption connector disposed on the clamping sliding plate for adsorbing and clamping the busbar.

[0020] By adopting the above technical solution, the effective clamping and conveying of the busbar is achieved, ensuring that the busbar can accurately reach the welding position, thereby improving the working efficiency and stability of the welding equipment.

[0021] Optionally, each of the opposite sides of the clamping sliding plate is provided with a corresponding clamping assembly, and the bending column is provided on the clamping assembly on the side of the clamping sliding plate facing the conveying mechanism.

[0022] By adopting the above technical solution, the busbar can be stably clamped during the conveying process, and the bending column can be used to bend the busbar during the conveying process, thereby improving the coordination and accuracy of busbar conveying and bending.

[0023] Optionally, the conveying mechanism includes a conveying bracket and two sets of conveying frames that are slidably mounted on the conveying bracket and for placing the busbar; It also includes a second pull-coil leveling mechanism disposed between the conveying mechanism and the bending mechanism. The structure of the second pull-coil leveling mechanism is the same as that of the first pull-coil leveling mechanism. The second pull-coil leveling mechanism is disposed below the bending mechanism and includes a fourth placement plate with a lifting and lowering configuration. The lifting height of the fourth placement plate is the same as the height of the conveying frame.

[0024] By adopting the above technical solution, the two sets of conveyor frames of the conveying mechanism can slide on the two sets of busbars respectively to realize the conveying of the busbars. One set of conveyor frames is used to place the cut and bent busbars, and the other set of conveyor frames is used to place the unbent busbars, that is, to place the busbars from the second pull-rolling and leveling mechanism, so that the subsequent two sets of busbars and photovoltaic panels are welded at the same time, improving the assembly efficiency.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The busbar and solar photovoltaic panel welding equipment of this application includes a welding platform, a first coiling and leveling mechanism, a cutting mechanism, a bending mechanism, a conveying mechanism, a clamping and moving mechanism, and a second coiling and leveling mechanism, which realizes the automated welding and assembly of the busbar with the solar photovoltaic panel, and the welding efficiency is high. 2. This application uses a hot press head to heat the busbar, allowing it to be softened before bending, thus facilitating the bending operation. 3. By setting the bending column, this application enables the manifold to be positioned and abut against the shaping surface after bending. Through the true hole air passage and coolant passage, the bending and shaping effect of the manifold is more ideal. Attached Figure Description

[0026] Figure 1 This is a diagram showing the processing steps of the busbar in this application.

[0027] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the welding platform in an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the structure of the first winding and leveling mechanism in the embodiment of this application.

[0030] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0031] Figure 6 This is a schematic diagram of the cutting mechanism and clamping and moving mechanism in the embodiments of this application.

[0032] Figure 7 This application presents a schematic diagram of the bending mechanism.

[0033] Figure 8 yes Figure 7 A magnified view of a portion of point B in the middle.

[0034] Figure 9 This is a schematic diagram of the structure of the bending column and the hot press head in an embodiment of this application.

[0035] Figure 10 This is a cross-sectional schematic diagram of the bent column according to an embodiment of this application.

[0036] Figure 11 This is a schematic diagram of the structure of the conveying mechanism and the second winding and leveling mechanism in the embodiments of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Welding platform; 11. Placement platform; 12. Photovoltaic adsorption component; 121. Photovoltaic adsorption bracket; 122. Adsorption plate; 13. Welding assembly; 14. Lifting platform; 15. Placement lifting component; 2. First pulling and leveling mechanism; 21. Winding wheel; 22. Cutting assembly; 221. Cutting seat; 222. Cutting pull block; 2221. Cutting limiting shaft; 223. Cutting pressure block; 2231. Cutting limiting groove; 2232. Cutting head; 224. Guide wheel assembly; 2241. Guide wheel assembly; 2242. Straightening wheel assembly; 2243. Drive wheel assembly; 23. First placement plate; 231. Mounting side plate; 24. Pulling assembly; 241. Pulling guide rail; 242. Pulling mounting block; 243. Pulling drive component; 25. Flattening component; 3. Cutting mechanism; 31. Second 311. Placement plate; 32. Cutting through hole; 4. Cutting head; 4. Bending mechanism; 41. Third placement plate; 42. Hot press head; 421. Hot press drive component; 422. Hot press plate; 423. Hot press surface; 424. Heating rod; 43. Bending column; 431. Shaping surface; 432. Vacuum passage; 433. Coolant pipe; 44. Limiting component; 441. Limiting housing; 4411. Mounting groove; 442. Limiting elastic component; 443. Limiting block; 4431. Guide surface; 5. Conveying mechanism; 51. Conveying bracket; 52. Conveying frame; 6. Clamping moving mechanism; 61. Clamping bracket; 62. Clamping fixing plate; 63. Clamping component; 631. Clamping push component; 632. Clamping sliding plate; 633. Adsorption connector; 7. Second pull-rolling and leveling mechanism; 71. Fourth placement plate. Detailed Implementation

[0038] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0039] The following is in conjunction with the appendix Figure 2-11 This application will be described in further detail.

[0040] This application discloses a welding device for busbars and solar photovoltaic panels.

[0041] Reference Figure 2 A welding device for busbars and solar photovoltaic panels includes a welding platform 1, a first coiling and leveling mechanism 2, a cutting mechanism 3, a bending mechanism 4, a conveying mechanism 5, and a clamping and moving mechanism 6.

[0042] Reference Figure 2 and Figure 3 The welding platform 1 includes a placement platform 11, a photovoltaic adsorption component 12 mounted on top of the placement platform 11, and a welding assembly 13 mounted on top of the placement platform 11. Above the placement platform 11 is a lifting platform 14 for mounting the photovoltaic adsorption component 12 and the welding assembly 13. Two sets of placement lifting components 15 are mounted on the lifting platform 14 to drive the photovoltaic adsorption component 12 and the welding assembly 13 to move up and down respectively. In this embodiment, the placement lifting components 15 are existing linear motor modules. The photovoltaic adsorption component 12 includes a photovoltaic adsorption bracket 121 connected to the output end of the placement lifting component 15 and an adsorption disk 122 arrayed and fixed to the bottom of the photovoltaic adsorption bracket 121. The adsorption disk 122 is a vacuum adsorption disk 122. The welding assembly 13 is mounted on opposite sides of the photovoltaic adsorption component 12 and is welded using a hot-pressing method.

[0043] Reference Figure 4 and Figure 5 The first winding and leveling mechanism 2 is located on one side of the welding platform 1 and is used for feeding and leveling the busbar. It includes a winding wheel 21, a cutting assembly 22, a first placement plate 23, a flattening component 25, and a pulling assembly 24. The top of the first placement plate 23 has a groove for arranging the busbar, and the side wall of the first placement plate 23 is provided with a mounting side plate 231 for mounting the winding wheel 21 and the cutting assembly 22.

[0044] The winding wheel 21 is rotatably mounted on the mounting side plate 231, and a motor that drives the winding wheel 21 to rotate is mounted on the mounting side plate 231. The cutting assembly 22 includes a cutting seat 221 fixed to the mounting side plate 231, a cutting pull block 222 that is lifted and mounted on the cutting seat 221, a cutting pressure block 223 that is rotatably mounted on the cutting seat 221, and a guide wheel assembly 224 disposed on the cutting seat 221.

[0045] The cutting pull block 222 is lifted and lowered by a cylinder. The cutting pull block 222 has a cutting limiting shaft 2221 that engages with the cutting pressure block 223 for positioning. The cutting pressure block 223 is rotatably mounted on the cutting base 221 at its center. One end of the pressure block has a cutting limiting groove 2231 that slides with the cutting limiting shaft 2221, and the other end has a cutting head 2232 for cutting the busbar. The cutting surface of the cutting head 2232 faces downwards. When the cutting pull block 222 moves upwards, it drives the cutting head 2232 to rotate downwards, thereby cutting the busbar.

[0046] The guide wheel assembly 224 is positioned between the cutting pressure block 223 and the pull wheel, and includes a guide wheel assembly 2241, multiple straightening wheel assemblies 2242, and a drive wheel assembly 2243. The guide wheel assembly 2241 consists of two symmetrically arranged rollers, with their axes perpendicular to the length direction of the busbar. When the busbar is pulled out from the winding wheel 21, it passes between the two rollers of the guide wheel assembly 2241, serving a guiding function.

[0047] Multiple straightening roller sets 2242 are spaced apart along the length of the busbar, with the axis of each set perpendicular to the length of the busbar. Adjacent straightening roller sets 2242 are arranged in an S-shape, with their axes gradually moving away from the horizontal busbar. The busbar exiting the winding reel bends upward. The first straightening roller, located at the top of the busbar, forces it downward, making its bending direction opposite to the original bend. The second straightening roller, located at the bottom of the busbar, bends it upward. The bending amplitude applied by each roller gradually decreases. After multiple up-down-up bending adjustments, the busbar is output in a straight state.

[0048] The pull assembly 24 includes a pull guide rail 241 horizontally fixed to the mounting side plate 231, a pull mounting block 242 slidably mounted on the pull guide rail 241, and a pull drive component 243 disposed on the pull mounting block 242. The pull drive component 243 is a clamping cylinder, with two clamping plates at its output end for clamping the end of the busbar vertically. The horizontal movement of the pull mounting block 242 on the pull guide rail 241 is achieved by a motor screw. The flattening component 245 is a conventional rotary clamping cylinder, which is spaced apart along the length direction of the first placement plate 21.

[0049] Reference Figure 6 The cutting mechanism 3 is located between the first placement plate 23 and the placement platform 11, and is used to cut the busbar, dividing it into three independent parts. The cutting mechanism 3 includes a second placement plate 31 and two sets of cutting heads 32 that are lifted and mounted on the second placement plate 31. The top surface of the second placement plate 31 is flush with the first placement plate 23, and the top of the second placement plate 31 also has a groove for arranging the busbar. The cutting heads 32 are lifted and mounted on the second placement plate 31 by a cylinder, and the second placement plate 31 has cutting through holes 311 corresponding to the cutting heads 32. When the busbar is cut, the clamping and moving mechanism 6 presses the busbar downward to ensure stability during cutting.

[0050] The clamping and moving mechanism 6 includes a clamping bracket 61, a clamping fixing plate 62 slidably mounted on the clamping bracket 61, and clamping components 63 spaced apart on the clamping fixing plate 62. The clamping bracket 61 is located entirely above the first placement plate 23 and the second placement plate 31, and is fixedly connected to the lifting platform 14. A linear drive component is mounted on the clamping bracket 61 to drive the clamping fixing plate 62 to move horizontally and vertically. In this embodiment, the linear drive component driving the clamping fixing plate 62 to move horizontally is a motor linear module, and the linear drive component driving the clamping fixing plate 62 to move vertically is a push cylinder fixed to the motor linear module.

[0051] The clamping assembly 63 includes a clamping pusher 631 fixed to the clamping fixing plate 62, a clamping sliding plate 632 connected to the output shaft of the clamping pusher 631, and an adsorption connector 633 disposed on the clamping sliding plate 632 for adsorbing and clamping the manifold. The clamping pusher 631 is a push cylinder horizontally fixed to the clamping fixing plate 62, used to push the clamping sliding plate 632 to adjust the spacing between adjacent adsorption connectors 633. The adsorption connector 633 is a rigid suction tube connected to the vacuum generator. The adsorption connector 633 is vertically fixed to the vacuum generator. The clamping assemblies 63 are spaced apart along the conveying direction of the manifold, and a corresponding clamping assembly 63 is provided on each opposite side of the clamping fixing plate 62, so that the clamping moving mechanism 6 can simultaneously perform clamping and adsorption moving of two sets of manifolds.

[0052] The clamping and moving mechanism 6 can move the busbar from the first pulling and leveling mechanism 2 to the cutting mechanism 3, then from the cutting mechanism 3 to the bending mechanism 4, and finally from the bending mechanism 4 to the conveying mechanism 5.

[0053] Reference Figure 7 and Figure 8 The bending mechanism 4 is located between the cutting mechanism 3 and the placement platform 11, and is used to bend the end of the busbar. The bending mechanism 4 includes a third placement plate 41, a hot press head 42, and a bending column 43.

[0054] The tops of the third placement plate 41 and the second placement plate 31 are at the same height, and their tops also have grooves for positioning the busbar. The hot press head 42 includes a hot press drive 421 fixed to the third placement plate 41 and a hot press plate 422 installed at the output end of the hot press drive 421. The hot press drive 421 is a rotary motor or a rotary cylinder, and its output shaft is at the same height as the straight busbar. The hot press plate 422 has a hot press surface 423 flush with the bottom wall of the groove of the third placement plate 41, so that the busbar can be placed flat on the hot press surface 423. In order to improve bending efficiency, a heating rod 424 corresponding to the hot press surface 423 is installed in the hot press plate 422. The heating rod 424 heats the area of ​​the busbar to be bent, thereby softening the busbar.

[0055] The bending column 43 is fixed to the clamping sliding plate 632. When the piston of the clamping pusher 631 is extended, the bending column 43 corresponds to the output shaft of the hot-pressing drive 421. The bending column 43 has a shaping surface 431 for the bent portion of the busbar to rotate and abut against. The clamping assembly 63 descends, causing the bending column 43 to abut against the busbar, pressing the busbar tightly. The hot-pressing plate 422 rotates and bends the softened busbar against the shaping surface 431.

[0056] Combination Figure 9 The bending column 43 has multiple vacuum channels 432 that penetrate the shaping surface 431, and the vacuum channels 432 are externally connected to a vacuum generator. After the hot press plate 422 completes the bending action and resets, the bending column 43 exerts a vacuum adsorption effect on the bent part of the busbar, ensuring that the bent part is in a vertical state and improving the shaping effect after bending. The bending column 43 also integrates a coolant pipe 433, which intersects with the vacuum channels 432 to cool the busbar, allowing the formed busbar to cool and solidify rapidly, thereby reducing springback and locking in the shape.

[0057] Reference Figure 9 and Figure 10 To reduce springback in the bent portion of the busbar after the hot press plate 422 resets, a limiting assembly 44 is provided on the bent column 43. The limiting assembly 44 includes a limiting housing 441 fixed to the bent column 43, a limiting elastic element 442 disposed on the limiting housing 441, and a limiting block 443 connected to the other end of the limiting elastic element 442. Limiting housings 441 are provided on opposite sides of the bent column 43, and both sets of limiting housings 441 have mounting grooves 4411 on their corresponding side walls for arranging the limiting blocks 443. The limiting elastic element 442 is a compression spring, with one end fixed to the inner wall of the mounting groove 4411 and the other end fixed to the limiting block 443. The distance between the limiting blocks 443 on the two sets of limiting housings 441 is less than the width of the busbar. Among them, the limiting block 443 is also provided with a guide surface 4431 on the side away from the shaping surface 431. The setting of the guide surface 4431 makes it easy for the hot press plate 422 to squeeze the limiting block into the mounting groove 4411 when it rotates.

[0058] Reference Figure 11 The conveying mechanism 5 includes a conveying bracket 51 and two sets of conveying frames 52 slidably mounted on the conveying bracket 51. The conveying bracket 51 is located above the placement platform 11 and is used to realize the horizontal sliding of the conveying frames 52. A driving component for moving the conveying frames 52 is mounted on the conveying bracket 51. This driving component is a prior art slide rail motor drive, which moves the two sets of conveying frames 52 to opposite sides of the photovoltaic panel.

[0059] In order to further improve welding efficiency, this application also includes a second coiling and leveling mechanism 7. The second coiling and leveling mechanism 7 has a fourth arrangement plate 71 for arranging the busbar. Compared with the first coiling and leveling mechanism 2, except for the addition of a lifting drive component to drive the fourth arrangement plate 71, the rest of the structure is the same as the first coiling and leveling mechanism 2. The lifting drive component can be a hydraulic cylinder or a pneumatic cylinder.

[0060] In the horizontal direction, the second coiling and leveling mechanism 7 is located between the conveyor frame 52 and the bending mechanism 4; in the vertical direction, the second coiling and leveling mechanism 7 is located below the conveyor frame 52. The uncut and unbent busbars on the upper fourth placement plate 71 are moved to one of the conveyor frames 52 by the clamping and moving mechanism 6, so that the welding assembly 13 can simultaneously perform welding operations on two sets of busbars and photovoltaic panels.

[0061] The implementation principle of a busbar and solar photovoltaic panel welding equipment in this application embodiment is as follows: the first group of busbars passes through the first pulling and leveling mechanism 2, the cutting mechanism 3 and the bending mechanism 4 and moves to the conveyor frame 52 close to the placement platform 11 under the action of the clamping and moving mechanism 6; the second group of busbars passes through the second pulling and leveling mechanism 7 and moves to the conveyor frame 52 on the side away from the placement platform 11 under the action of the clamping and moving mechanism 6. During its movement, the clamping and moving mechanism 6 can simultaneously move two sets of busbars, placing them respectively on the first winding and leveling mechanism 2 and the cutting mechanism 3, or the cutting mechanism 3 and the bending mechanism 4. After the clamping and moving mechanism 6 removes the bent busbar, it moves toward the placement platform 11 and places the cut busbar on the bending mechanism 4 for heating and softening of the part to be bent. The clamping and moving mechanism 6 then lifts up again to release the clamp on the heated busbar. The clamping and moving mechanism 6 moves horizontally to adsorb and clamp the second set of busbars on the fourth placement plate 71. Finally, the clamping and moving mechanism 6 moves horizontally to place the two sets of busbars on the two sets of conveyor frames 52 respectively.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A welding device for busbars and solar photovoltaic panels, characterized in that, include: The welding platform (1) includes a placement platform (11), a photovoltaic panel adsorption component that is lifted and disposed on the top of the placement platform (11), and a welding assembly (13) that is lifted and disposed on the top of the placement platform (11). The first pull-coil leveling mechanism (2) is set on one side of the welding platform (1) and is used for feeding and leveling the busbar; The cutting mechanism (3) is located between the first pulling and leveling mechanism (2) and the welding platform (1) and is used for cutting the busbar. A bending mechanism (4) is disposed between the cutting mechanism (3) and the welding platform (1) for bending the busbar; The conveying mechanism (5) is slidably installed on one side of the welding platform (1) to convey the busbar to the bottom of the welding platform (1) corresponding to the photovoltaic panel; The clamping and moving mechanism (6) is located on top of the first pulling and leveling mechanism (2), the cutting mechanism (3) and the bending mechanism (4) for clamping the conveyor busbar; The bending mechanism (4) includes a third placement plate (41), a hot press head (42) rotatably disposed on the third placement plate (41), and a bending column (43) installed on the clamping and moving mechanism (6) and corresponding to the hot press head (42). The side wall of the bending column (43) has a shaping surface (431) for the busbar to be bent and abut. The hot press head (42) includes a hot press drive (421) and a hot press plate (422) disposed on the output shaft of the hot press drive (421). The output shaft of the hot press drive (421) and the busbar are at the same height. A heating rod (424) for heating the busbar is disposed inside the hot press plate (422). A vacuum channel (432) penetrating the shaping surface (431) is disposed on the bending column (43). A vacuum generator is externally connected to the vacuum channel (432). A coolant channel is also integrated inside the bending column (43). The bending column (43) is further provided with limiting components (44) on both sides of the shaping surface (431). The limiting components (44) include a limiting housing (441) fixed to the bending column (43), a limiting elastic member (442) provided on the limiting housing (441), and a limiting block (443) connected to the other end of the limiting elastic member (442). The limiting block (443) is provided with a guide surface (4431) for the heating pressure plate (422) to push and abut on the side away from the shaping surface (431).

2. The welding equipment for busbars and solar photovoltaic panels according to claim 1, characterized in that, The first winding and leveling mechanism (2) includes a winding wheel (21) on which the busbar is wound, a cutting component (22) disposed on one side of the winding wheel (21), a pulling component (24) for pulling the busbar, and a first placement plate (23) for leveling and placing the busbar. A flattening component (25) for pressing the busbar is installed on the top of the first placement plate (23). The cutting assembly (22) includes a cutting seat (221), a cutting pull block (222) that is lifted and installed on the cutting seat (221), a cutting pressure block (223) that is rotatably installed on the cutting seat (221) and has one end slidingly engaged with the cutting pull block (222), and a guide wheel assembly (224) provided on the cutting seat (221). The cutting pressure block (223) has a cutting head (2232) at the other end away from the cutting pull block (222).

3. The welding equipment for busbars and solar photovoltaic panels according to claim 2, characterized in that, The guide wheel assembly (224) includes a guide wheel assembly (2241), multiple straightening wheel assemblies (2242), and a drive wheel assembly (2243). The axis of the guide wheel assembly (2241) is perpendicular to the conveying direction of the busbar. The multiple straightening wheel assemblies (2242) are arranged alternately on both sides of the busbar along the conveying direction of the busbar. The bending amplitude applied to the busbar by the straightening wheel assembly (2242) gradually decreases along the conveying direction.

4. The welding equipment for busbars and solar photovoltaic panels according to claim 1, characterized in that, The cutting mechanism (3) includes a second placement plate (31) and multiple sets of cutting heads (32) that are lifted and installed on the second placement plate (31). When the cutting head (32) is lifted to cut, the busbar is pressed against the second placement plate (31) by the clamping and moving mechanism (6).

5. The welding equipment for busbars and solar photovoltaic panels according to claim 1, characterized in that, The clamping and moving mechanism (6) includes a clamping bracket (61), a clamping fixing plate (62) slidably mounted on the clamping bracket (61), and clamping components (63) spaced apart on the clamping fixing plate (62). The clamping assembly (63) includes a clamping pusher (631) disposed on the clamping fixing plate (62), a clamping sliding plate (632) connected to the output shaft of the clamping pusher (631), and an adsorption connector (633) disposed on the clamping sliding plate (632) for adsorbing and clamping the busbar.

6. The welding equipment for busbars and solar photovoltaic panels according to claim 5, characterized in that, The clamping slide plate (632) has a corresponding clamping component (63) on each of its opposite sides, and the bending column (43) is disposed on the clamping component (63) on the side of the clamping slide plate (632) facing the conveying mechanism (5).

7. The welding equipment for busbars and solar photovoltaic panels according to claim 1, characterized in that, The conveying mechanism (5) includes a conveying bracket (51) and two sets of conveying frames (52) that are slidably mounted on the conveying bracket (51) and for placing the busbar. It also includes a second pull-roll leveling mechanism (7) disposed between the conveying mechanism (5) and the bending mechanism (4). The structure of the second pull-roll leveling mechanism (7) is the same as that of the first pull-roll leveling mechanism (2). The second pull-roll leveling mechanism (7) is disposed below the bending mechanism (4), and the second pull-roll leveling mechanism (7) includes a fourth placement plate (71) with lifting and lowering configuration. The lifting height of the fourth placement plate (71) is the same as the height of the conveying frame (52).

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