Cleaning module and junction box laser welding equipment

Abstract

The utility model discloses a cleaning module and junction box laser welding equipment, and relates to the field of automation equipment, the cleaning module comprises at least two vertically arranged steel wire brushes and a power part used for driving the steel wire brushes to move in the horizontal direction, the steel wire brushes are respectively in one-to-one correspondence with through holes formed in pressing claws, and the power part is used for driving the steel wire brushes to move in the horizontal direction. The cleaning device is used for cleaning the through hole. According to the laser welding equipment, the cleaning module is arranged to clean the pressing claw of the laser welding equipment, the welding quality of subsequent welding work is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of automation equipment, in particular to a laser welding machine for junction boxes. Background Art

[0002] Generally, a photovoltaic junction box is adhered to the backplane of a solar module by silicone. The internal circuit in the junction box is connected to the lead-out wire in the module, and the external cable is connected to the internal circuit, so as to conduct the external cable and the photovoltaic module.

[0003] One of the key technologies of photovoltaic production equipment lies in the welding of busbars, which involves the processing procedure of welding the lead-out wires (i.e., busbars) of photovoltaic modules to the connection terminals of photovoltaic junction boxes. Specifically, two lead-out wires (busbars) of a photovoltaic module are respectively inserted into two jacks of the photovoltaic junction box and bent above the welding part of the junction box, and a laser welding device is used to weld the bent busbars to the welding part of the junction box.

[0004] There is a current welding method. The laser welding module includes a pressing claw, which is used to press the busbar to make the busbar close to the welding part of the junction box. The pressing claw is provided with a through hole for the laser to pass through. While the pressing claw presses the busbar, the laser emitted by the laser head passes through the through hole to weld the busbar. After a long time of welding work, the inner wall of the through hole opened in the pressing claw is likely to adhere to impurities such as welding slag, affecting subsequent welding. It is necessary to manually clean the through hole at the pressing claw, which affects the working efficiency of the product.

[0005] Therefore, it is necessary to improve the existing technology to overcome the defects in the existing technology. Summary of the Utility Model

[0006] In order to improve the problem that the inner wall of the through hole of the pressing claw adheres to welding slag and needs to be manually cleaned, resulting in low working efficiency of the equipment, this application provides a cleaning module and a laser welding device for junction boxes.

[0007] On the one hand, a cleaning module provided by this application adopts the following technical solution:

[0008] A cleaning module includes a vertically arranged wire brush and a power component for driving the wire brush to move horizontally. There are at least two wire brushes, and the wire brushes respectively correspond to the through holes opened in the pressing claw for cleaning the through holes.

[0009] Optionally, it includes a fixed bottom plate, a first wire brush adjustment block and a second wire brush adjustment block. At least one wire brush is installed on the first wire brush adjustment block, and at least one wire brush is installed on the second wire brush adjustment block. Both the first wire brush adjustment block and the second wire brush adjustment block are provided with through adjustment holes, and the fixed bottom plate is provided with several through adjustment holes at intervals along the length direction.

[0010] Optionally, it includes a welding slag collection box with an open top for welding slag to fall into. The wire brush extends into the welding slag collection box, and the bottom end of the wire brush is located inside the internal space of the welding slag collection box.

[0011] On the other hand, a laser welding device for a junction box provided by the present application adopts the following technical solutions:

[0012] A laser welding device for a junction box includes

[0013] A cleaning module as described in the first aspect;

[0014] A frame, on which a production line for conveying photovoltaic modules is provided, and the length direction of the production line is the same as the conveying direction of the photovoltaic modules;

[0015] A laser welding module, which includes a laser head, at least two clamping claws, and a Z-axis driving component for driving the clamping claws to move in the Z-axis direction. Through holes for the laser to pass through are provided on the clamping claws.

[0016] Optionally, it further includes a rectifying module, which includes two rectifying connecting plates located on opposite sides of the component respectively. When the power component provides power, the two rectifying connecting plates approach or move away from each other, and the moving direction of the rectifying connecting plates is perpendicular to the transmission direction of the production line. The cleaning module is connected to the rectifying connecting plates.

[0017] Optionally, the laser welding module includes a dust suction component, which includes a dust suction box with a dust suction port facing the clamping claws, and the dust suction box is externally connected to a smoke purifier and / or a vacuum cleaner power component for use.

[0018] Optionally, a barcode scanner is provided on the production line.

[0019] Optionally, a support mechanism is provided on the frame, which includes a cylinder and a horizontally arranged top plate with a buffer pad provided on the top plate. The cylinder is fixed to the frame and is used to drive the top plate to move in the Z-axis direction. When the cylinder is in the retracted state, the upper surface of the buffer pad is lower than the upper surface of the production line.

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

[0021] When cleaning the through-hole, the power component provides power to drive the alignment connecting plate to drive the cleaning module to move towards the direction close to the clamping jaw. When the cleaning module runs directly below the through-hole, the Z-axis driving component provides power to control the up-and-down movement of the clamping jaw in the Z-axis direction, so as to realize the cleaning of the through-hole. After the cleaning is completed, the power component provides power to drive the alignment connecting plate to drive the cleaning module to move away from the clamping jaw, so as to continue the laser welding work, quickly realizing the cleaning of the through-hole and improving the work efficiency;

[0022] When the cleaning module cleans the through-hole, the dust suction component sucks the dust, so as to suck away the impurities. The impurities are not easy to fall around, which is convenient for the unified collection of welding slag impurities. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the alignment component in the present application;

[0024] Figure 2 is a schematic structural diagram of a cleaning module provided by the present application;

[0025] Figure 3 is an overall view of a junction box laser welding device provided by the present application;

[0026] Figure 4 is a schematic structural diagram of a junction box laser welding device provided by the present application;

[0027] Figure 5 is a schematic structural diagram of the dust suction component in the present application;

[0028] Figure 6 is a schematic structural diagram of a press head in the related art.

[0029] Description of the reference numerals: 1. Steel wire brush; 2. Clamping jaw; 3. Through-hole; 4. Fixed bottom plate; 5. First steel brush adjustment block; 6. Second steel brush adjustment block; 7. Adjustment hole; 8. Welding slag collection box; 9. Frame; 10. Assembly line; 11. Photovoltaic module; 12. Laser head; 13. Z-axis driving component; 14. Alignment connecting plate; 15. Dust suction box; 16. Barcode scanner; 17. Cylinder; 18. Top plate; 19. Buffer pad; 20. Power component. Detailed Embodiments

[0030] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In a utility model, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0036] For an existing laser welding module, as Figure 6 shown, it includes a pressure jaw 2 which is used to press against the bus bar to be welded. The pressure jaw 2 is provided with a through hole 3 for the laser to pass through, making the inside of the pressure jaw 2 hollow. After a long time of welding work, since the laser passes through the through hole 3, the inner wall of the through hole 3 opened in the pressure jaw 2 is likely to adhere to impurities such as welding slag, affecting subsequent work. Often, it is necessary for the staff to clean the pressure jaw 2 of the equipment additionally, which is time-consuming and laborious. To solve the above technical problems, the present application provides a cleaning component and a laser welding machine.

[0037] The following will further describe the present application in detail with reference to the attached Figures 1-6 drawings.

[0038] On the one hand, a cleaning module provided by the present application, referring to Figure 1 and Figure 2, the cleaning module includes a fixed base plate 4, a first steel brush adjustment block 5, a second steel brush adjustment block 6, a number of vertically arranged wire brushes 1, and a power component 20 for driving the wire brush 1 to move in the horizontal direction. The moving direction of the wire brush 1 is towards the pressing jaw 2 or away from the pressing jaw 2. The diameter of the wire brush 1 is between 6 mm and 12 mm. The wire brushes 1 respectively correspond to the through holes 3 opened on the pressing jaw 2 for cleaning the through holes 3. In this application, each cleaning module is provided with two wire brushes 1 for corresponding to the paired pressing jaws 2. One wire brush 1 is installed on the first steel brush adjustment block 5, and the other wire brush 1 is installed on the second steel brush adjustment block 6. Both the first steel brush adjustment block 5 and the second steel brush adjustment block 6 are provided with through adjustment holes 7. The fixed base plate 4 is provided with a number of through adjustment holes 7 at intervals along the length direction.

[0039] In some specific embodiments, bolts are sequentially passed through the adjustment holes 7 opened on the first steel brush adjustment block 5 and the fixed base plate 4, and then tightened with nuts at the other end, thereby determining the position of one wire brush 1. Then, in the same way, the second steel brush adjustment block 6 is fixed at a suitable place along the length direction of the fixed base plate 4, thereby determining the position of the other wire brush 1. In this way, the distance between the wire brushes 1 can be adjusted. Because for different models of junction boxes, the distance between the busbars is not fixed, and the distance between the two pressing jaws 2 will also change. This can make the wire brushes 1 match different distances between the pressing jaws 2.

[0040] It should be noted that the pressing jaw 2 in the related art can move up and down along the Z-axis. After the welding work is completed, the photovoltaic module 11 leaves the equipment. The power component 20 drives the wire brush 1 to move towards the pressing jaw 2. When it moves to the position corresponding to the through hole 3 of the pressing jaw 2, the pressing jaw 2 moves up and down along the Z-axis, so that the wire brush 1 cleans the through hole 3 opened on the pressing jaw 2, thereby completing the cleaning work, simplifying the operation steps of cleaning the through hole 3, and improving the work efficiency.

[0041] In some specific embodiments, the cleaning module further includes a welding slag collection box 8. The top of the welding slag collection box 8 is open for welding slag to fall in. The wire brush 1 extends into the welding slag collection box 8, and the bottom end of the wire brush 1 is slightly inside the internal space of the welding slag collection box 8.

[0042] On the other hand, a junction box laser welding device provided by this application includes the cleaning module of the first aspect;

[0043] Frame 9 is provided with an assembly line 10 for conveying photovoltaic modules 11. The length direction of the assembly line 10 is the same as the conveying direction of the photovoltaic modules 11. During operation, the photovoltaic modules 11 are located above the assembly line 10 and can be conveyed along the direction of the longer side of the photovoltaic module 11 or along the direction of the shorter side of the photovoltaic module 11 according to actual needs. This application does not make specific limitations in this regard;

[0044] In some specific embodiments, a barcode scanner 16 may also be provided on the frame 9 for scanning and identifying the barcodes pasted on the photovoltaic modules 11.

[0045] Laser welding module. The laser welding module includes a laser head 12 provided on the frame 9, at least two clamping claws 2, and a Z-axis driving component 13 for driving the clamping claws 2 to move in the Z-axis direction. In this application, there are a total of six clamping claws 2, which are divided into three groups with two clamping claws 2 in each group. Each clamping claw 2 is provided with a through hole 3 for the laser to pass through. The laser welding module also includes a dust suction component. The dust suction component includes a dust suction box 15. The dust suction port of the dust suction box 15 faces the clamping claws 2. The dust suction box 15 is externally connected to a smoke purifier and / or a dust suction power component for common use;

[0046] Alignment module. The alignment module includes two alignment connecting plates 14, which are respectively located on opposite sides of the photovoltaic module 11. The connection line between the two alignment connecting plates 14 is perpendicular to the conveying direction of the photovoltaic module 11. When the power mechanism provides power, the two alignment connecting plates 14 approach or move away from each other. The moving direction of the two alignment connecting plates 14 is perpendicular to the transmission direction of the assembly line 10. When the photovoltaic module 11 is transported to the working position, the power component 20 provides power, and the two alignment connecting plates 14 limit the two sides of the photovoltaic module 11 to align the photovoltaic module 11. The cleaning module is installed on the alignment connecting plate 14, so that it shares the same power component 20 with the alignment module. The cleaning module is installed on the side of the alignment connecting plate 14 away from the photovoltaic module 11. The welding slag collection box 8 is detachably connected to the alignment connecting plate 14. During the normal operation of the laser welding equipment, the cleaning module will not affect the operation of the laser welding equipment. When the through hole 3 needs to be cleaned, it needs to be carried out when there is no photovoltaic module 11 on the assembly line 10. At this time, the power component 20 provides power to make the alignment connecting plate 14 drive the cleaning module to move towards the direction close to the clamping claws 2. When the cleaning module runs to directly below the through hole 3, the Z-axis driving component 13 provides power to control the clamping claws 2 to move up and down in the Z-axis direction, so as to realize the cleaning of the through hole 3. After the cleaning is completed, the power component 20 provides power to make the alignment connecting plate 14 drive the cleaning module to move away from the clamping claws 2, so as to continue the laser welding work, quickly realizing the cleaning of the through hole, and improving the work efficiency.

[0047] In some specific embodiments, a support mechanism is provided on the frame 9. The support mechanism is used to support the photovoltaic module 11 when the photovoltaic module 11 is located at the welding station. The support mechanism includes a cylinder 17 and a horizontally arranged top plate 18. The cylinder 17 is vertically arranged and fixed to the frame 9. The cylinder 17 is used to drive the top plate 18 to move up and down along the Z-axis direction. A horizontal buffer pad 19 is arranged above the top plate 18. The support mechanism is located between the two alignment connecting plates 14. When the cylinder 17 is in a shortened state, the upper surface of the buffer pad 19 is lower than the upper surface of the assembly line 10, so as to avoid the influence of the support mechanism on the operation of the photovoltaic module 11. When the photovoltaic module 11 runs to the welding station, the cylinder 17 extends, driving the buffer pad 19 to move upward to support and buffer the bottom of the photovoltaic module 11, playing a role in protecting the photovoltaic module 11.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A cleaning module, characterized in that: The invention comprises a vertically arranged wire brush (1) and a power component (20) for driving the wire brush (1) to move horizontally, wherein the wire brush (1) has at least two wire brushes, and the wire brushes (1) correspond one by one to the through holes (3) opened by the pressure claw (2) and are used for cleaning the through holes (3).

2. A cleaning module according to claim 1, characterized in that: The invention comprises a fixed bottom plate (4), a first steel brush adjustment block (5) and a second steel brush adjustment block (6); at least one steel wire brush (1) is mounted on the first steel brush adjustment block (5); at least one steel wire brush (1) is mounted on the second steel brush adjustment block (6); both the first steel brush adjustment block (5) and the second steel brush adjustment block (6) are provided with a through adjustment hole (7); and the fixed bottom plate (4) is provided with a plurality of through adjustment holes (7) spaced apart along the length direction.

3. A cleaning module according to claim 1, characterized in that: It comprises a welding slag storage box (8), the top of the welding slag storage box (8) is open for the welding slag to fall into, the wire brush (1) extends into the welding slag storage box (8), and the bottom end of the wire brush (1) is located in the internal space of the welding slag storage box (8).

4. A junction box laser welding device, characterized in that: include A cleaning module according to any one of claims 1 to 3; A frame (9), wherein an assembly line (10) for conveying photovoltaic modules (11) is arranged on the frame (9), and the length direction of the assembly line (10) is the same as the conveying direction of the photovoltaic modules (11); A laser welding module, comprising a laser head (12), at least two pressing claws (2), and a Z-axis driving component (13) for driving the pressing claws (2) to move in the Z-axis direction, wherein each of the pressing claws (2) is provided with a through hole (3) for laser light to pass through.

5. The junction box laser welding equipment according to claim 4, characterized in that: It also includes a return module, the return module includes two return connection plates (14), the two return connection plates (14) are respectively located on two opposite sides of the photovoltaic module (11), when the power component (20) provides power, the two return connection plates (14) move closer to each other or move away from each other, the movement direction of the return connection plates (14) is perpendicular to the transmission direction of the assembly line (10), and the cleaning module is connected to the return connection plates (14).

6. The junction box laser welding equipment according to claim 4, characterized in that: The laser welding module comprises a dust suction component, and the dust suction component comprises a dust suction box (15). The dust suction port of the dust suction box (15) faces the pressing claw (2), and the dust suction box (15) is externally connected to a smoke purifier and / or a dust collector power component for use.

7. The junction box laser welding equipment according to claim 4, characterized in that: The assembly line (10) is provided with a code scanning gun (16).

8. The junction box laser welding equipment according to claim 4, characterized in that: The frame (9) is provided with a support mechanism, the support mechanism comprising a cylinder (17) and a horizontally arranged top plate (18), the top plate (18) being provided with a buffer pad (19), the cylinder (17) being fixed to the frame (9), the cylinder (17) being used to drive the top plate (18) to move in the Z-axis direction, and when the cylinder (17) is in a shortened state, the upper surface of the buffer pad (19) is lower than the upper surface of the assembly line (10).

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