Rivet welding device of photovoltaic module junction box

Abstract

The rivet welding device comprises a plurality of rivet welding units and a track unit, the rivet welding units are used for being in one-to-one correspondence with the junction boxes of the photovoltaic module, and the rivet welding units can move on the track unit in the short edge or long edge direction of the photovoltaic module. The rivet welding unit comprises a first rack, an image detection mechanism, a riveting mechanism and a welding mechanism, wherein the image detection mechanism, the riveting mechanism and the welding mechanism are arranged on the first rack, and the riveting mechanism and the welding mechanism can ascend and descend on the rail unit. According to the invention, the welding effect between the leading-out wire terminal of the photovoltaic module and the junction box can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic components, and in particular to a riveting device for a photovoltaic component junction box. Background Art

[0002] The junction box of the photovoltaic module is connected to the solar cell in the photovoltaic module to lead out the current generated by the solar cell. In addition, a diode is provided in the junction box to protect the circuit of the solar cell. When the photovoltaic module is manufactured, the lead wire terminal of the photovoltaic module is welded to the junction box by tinning. However, problems such as poor solder joints are prone to occur between the lead wire terminal and the junction box, which can easily cause the diode in the junction box to fail or burn out, and even cause the photovoltaic module to burn out.

[0003] Based on the above, it is necessary to provide a device that can improve the welding effect between the photovoltaic module lead-out terminal and the junction box. Summary of the invention

[0004] The invention provides a riveting welding device for a photovoltaic module junction box, which can improve the welding effect between a photovoltaic module lead-out terminal and the junction box.

[0005] The specific technical solutions provided by the present invention are as follows:

[0006] A riveting device for a junction box of a photovoltaic module is provided, comprising a plurality of riveting units and a track unit. The riveting units correspond to the junction boxes of the photovoltaic modules one by one, and the riveting units can move on the track unit along the short side or long side direction of the photovoltaic module. The riveting units comprise an image detection mechanism, a riveting mechanism and a welding mechanism, and the riveting mechanism and the welding mechanism can be raised and lowered respectively on the track unit.

[0007] As a preferred embodiment of the above scheme, the track unit includes a long side track, a short side track and a lifting track, the long side track is extended along the long side direction of the photovoltaic component, the short side track is extended along the short side direction of the photovoltaic component, the long side track includes a plurality of first long side track, the first long side track is arranged on the short side track and can move along the short side track, the riveting and welding unit corresponds to the first long side track one by one, the lifting track is arranged on the first long side track and can move along the first long side track, the lifting track includes a first lifting track and a second lifting track, the riveting mechanism is arranged on the first lifting track and can be lifted and lowered along the first lifting track, and the welding mechanism is arranged on the second lifting track and can be lifted and lowered along the second lifting track.

[0008] As a preferred embodiment of the above solution, the long side track further includes a second long side track, and the short side track is arranged on the second long side track and can move along the second long side track.

[0009] As a preferred embodiment of the above scheme, the riveting and welding device of the photovoltaic module junction box also includes a control unit, and the riveting and welding unit and the track unit are both connected to the control unit, and the control unit is used to control the operation of the track unit, the riveting mechanism and the welding mechanism based on the information detected by the image detection mechanism.

[0010] As a preferred embodiment of the above scheme, the riveting and welding device of the photovoltaic module junction box also includes a scanning unit and a second frame, the scanning unit and the track unit are arranged on the second frame, the scanning unit is used to scan the barcode on the photovoltaic module, and the scanning unit is connected to the control unit.

[0011] As a preferred embodiment of the above scheme, the riveting mechanism includes a nail feeding head, a flipping piece, a recovery tube, an upper three-jaw clamp and a lower three-jaw clamp, the nail feeding head is used to clamp the rivet, the flipping piece is used to drive the nail feeding head to flip, the recovery tube is connected to the upper three-jaw clamp, the recovery tube and the upper three-jaw clamp can be raised and lowered by air pressure, the upper three-jaw clamp is used to clamp the rivet rod after the nail feeding head is flipped, and the lower three-jaw clamp is used to clamp the rivet cap after the recovery tube and the upper three-jaw clamp are lowered.

[0012] As a preferred embodiment of the above scheme, the riveting welding device of the photovoltaic module junction box also includes a loading unit of the riveting mechanism, and the loading unit includes a vibration plate, a rivet conveying track, a screening area, a waiting area and a nail feeding tube, the vibration plate is connected to the screening area through the rivet conveying track, the screening area is connected to the waiting area through the rivet conveying track, the waiting area is connected to the nail feeding tube, and the nail feeding tube is connected to the nail feeding head.

[0013] As a preferred embodiment of the above scheme, the riveting welding device of the photovoltaic module junction box also includes a residual material recovery unit of the riveting mechanism, and the residual material recovery unit includes a recovery pipe and a residual material barrel, and the recovery pipe connects the recovery tube and the residual material barrel.

[0014] As a preferred embodiment of the above scheme, the welding mechanism includes a welding head, a tin feeding tube, an air blow pipe, a tin wire detection component and a temperature controller, the tin feeding tube and the air blow pipe correspond to the welding head, the tin feeding tube is connected to the tin wire detection component, the welding head is connected to the temperature controller, and the temperature controller and the tin wire detection component are connected to the control unit.

[0015] As a preferred embodiment of the above scheme, the image detection mechanism is arranged on the second lifting track, and the image detection mechanism includes a camera, which takes pictures of the riveting holes, riveting effects and welding effects and uploads them to the control unit.

[0016] As a preferred embodiment of the above scheme, the riveting and welding device of the photovoltaic module junction box also includes a positioning unit, which is connected to the control unit, and the positioning unit includes a lifting mechanism, which lifts the photovoltaic module on the assembly line to perform the image detection, riveting and welding, and the lifting mechanism includes a lifting cylinder, a lifting plate and a first support plate for supporting the photovoltaic module, and the piston shaft of the lifting cylinder is connected to the lifting plate.

[0017] As a preferred embodiment of the above scheme, the positioning unit also includes a return mechanism, the return mechanism and the first support plate are arranged on the lifting plate, the return mechanism includes a return cylinder, a return block and an adjusting member, the adjusting member can adjust the position of the return cylinder and the return block according to the size of the photovoltaic component, the adjusting member includes an adjusting rail and an adjusting plate, the position of the adjusting plate on the adjusting rail can be adjusted according to the length of the photovoltaic component, the return cylinder and the return block are arranged on the adjusting plate, and a second support plate for supporting the photovoltaic component is provided on the adjusting plate, the adjustment rail and the second support plate extend along the long side direction of the photovoltaic component, the first support plate extends along the short side direction of the photovoltaic component, and the first support plate, the second support plate and the return block are provided with a buffer of the photovoltaic component.

[0018] As a preferred embodiment of the above scheme, the adjusting rail, the lifting plate and the lifting cylinder are located below the assembly line, the adjusting rail is provided with a connecting groove, the connecting groove extends along the length direction of the adjusting rail, the adjusting plate is provided with a threaded hole, the threaded hole and the connecting groove are connected by a threaded connector to fix the adjusting plate and the adjusting rail, and the adjusting plate and the adjusting rail are released by adjusting the threaded connector.

[0019] As a preferred embodiment of the above scheme, an alarm unit is provided on the second rack, and the alarm unit is connected to the control unit. The control unit includes a control cabinet, and the control cabinet is connected to the second rack. A control panel and a display screen are provided on the control cabinet. The control panel is used to control and debug the positioning unit, the riveting unit and the track unit, and the display screen is used to display the image detection effect of the image detection mechanism.

[0020] By means of the above technical scheme, the riveting welding device of the junction box of the photovoltaic module provided in the embodiment of the present invention includes a first frame and a riveting mechanism and a welding mechanism arranged on the first frame based on the riveting welding unit, that is, the riveting mechanism and the welding mechanism are designed as an integrated whole, so that the lead terminal of the photovoltaic module and the junction box can be first riveted and then welded to improve the problem of poor welding between the lead terminal and the junction box, and the riveting and welding are more efficient than the operation of two separate devices. In addition, the image detection mechanism can detect the riveting effect and the welding effect under the drive of the riveting welding unit, which is conducive to the riveting welding device to accurately position the lead terminal and the junction box so that the two are firmly connected and the yield of the photovoltaic module is improved. In addition, since the riveting welding unit can move and rise and fall along the short side or long side direction of the photovoltaic module on the track unit, the riveting mechanism and the welding mechanism have a large adjustable range of movement, can quickly and accurately locate the hole position of the junction box to achieve riveting and welding, and the riveting welding efficiency is high, which is conducive to the riveting welding unit to connect different lead terminals of the photovoltaic module with the junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a riveting welding device for a photovoltaic module junction box provided by an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0024] Figure 3 for Figure 1 A schematic diagram of a top view structure;

[0025] Figure 4 A schematic diagram of the structure of a riveting welding unit and a track unit in a riveting welding device provided in an embodiment of the present invention;

[0026] Figure 5 for Figure 4 Schematic diagram of the local structure;

[0027] Figure 6 for Figure 5 A schematic diagram of the structure from another angle;

[0028] Figure 7 for Figure 5 Schematic diagram of the local structure;

[0029] Figure 8 A schematic structural diagram of a positioning unit in a riveting and welding device provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more centered elements can exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more centered elements can exist between them. The terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the prior art, the lead wire terminal of the photovoltaic module is welded to the junction box by tinning welding, but it is easy to have defects such as cold welding. By setting a rivet hole position at the welding position of the junction box, riveting the lead wire terminal to the rivet hole, and then performing tinning welding at the rivet hole, the welding effect between the lead wire terminal and the junction box can be enhanced, thereby improving the yield of the photovoltaic module.

[0033] The existing riveting and welding mechanisms of the junction box of photovoltaic modules need to be moved separately, and the riveting and welding efficiency is low. At the same time, the existing riveting and welding mechanisms have a small adjustable range of movement, and cannot quickly and accurately locate the hole position of the junction box to achieve riveting or welding, further reducing the riveting and welding efficiency. In addition, when riveting or welding the junction box, it is necessary to perform image detection on the riveting effect or welding effect. The existing image detection mechanism does not detect comprehensively and cannot achieve good card control of the module, resulting in a low yield of photovoltaic modules.

[0034] Based on the above, an embodiment of the present invention provides a riveting welding device for a photovoltaic module junction box, which can automatically realize the riveting of the lead wire terminal of the photovoltaic module with the junction box, and then weld it, so as to enhance the welding effect between the lead wire terminal and the junction box, thereby improving the yield of the photovoltaic module, and the riveting mechanism and the welding mechanism are designed as an integrated whole, which can improve the riveting welding efficiency of the junction box, and the image detection mechanism can realize comprehensive image detection, realize good card control of the photovoltaic module, and further improve the yield of the photovoltaic module. The embodiments of the present invention are explained in detail below.

[0035] like Figures 1 to 4 As shown, the riveting welding device for the junction box of the photovoltaic module provided by the embodiment of the present invention includes a plurality of riveting welding units 2 and a track unit 3. The plurality of riveting welding units 2 are used to correspond to the junction box 200 of the photovoltaic module 100 one by one. The riveting welding units 2 can move along the short side or long side direction of the photovoltaic module on the track unit 3. The riveting welding units 2 include a first frame (not shown) and an image detection mechanism 21, a riveting mechanism 22 and a welding mechanism 23 arranged on the first frame. The riveting mechanism 22 and the welding mechanism 23 can be raised and lowered on the track unit 3, respectively. Among them, the image detection mechanism 21 is used to perform image detection. For example, the image detection mechanism performs image detection on the riveting hole position, riveting effect and welding effect of the junction box. In this way, the image detection mechanism realizes comprehensive image detection on the riveting welding process of the photovoltaic module, realizes good card control on the photovoltaic module, and improves the yield rate of the photovoltaic module.

[0036] The riveting welding device for the junction box of the photovoltaic module provided in the embodiment of the present invention is based on the riveting welding unit 2 including a first frame and a riveting mechanism 22 and a welding mechanism 23 arranged on the first frame, that is, the riveting mechanism 22 and the welding mechanism 23 are designed as an integrated whole, so that the lead-out terminal of the photovoltaic module and the junction box can be first riveted and then welded to improve the problem of poor welding between the lead-out terminal and the junction box, and riveting and welding are more efficient than operating two separate devices. In addition, the image detection mechanism 21 can detect the riveting effect and the welding effect under the drive of the riveting welding unit 2, which is conducive to the riveting welding device to accurately position the lead-out terminal and the junction box so that the two are firmly connected, thereby improving the yield of the photovoltaic module. In addition, since the riveting and welding unit 2 can be moved and raised and lowered on the track unit 3 along the short side or long side direction of the photovoltaic module, the riveting mechanism 22 and the welding mechanism 23 have a large adjustable movement range, and can quickly and accurately locate the hole position of the junction box 200 to achieve riveting and welding, and the riveting and welding efficiency is high, which is conducive to the riveting and welding unit 2 being able to connect different lead terminals of the photovoltaic module to the junction box.

[0037] The riveting and welding device provided in the embodiment of the present invention also includes a control unit (not shown), and the riveting and welding unit 2 and the track unit 3 are both connected to the control unit, which is used to control the operation of the track unit 3, the riveting mechanism 22 and the welding mechanism 23 based on the information detected by the image detection mechanism 21.

[0038] like Figure 1 , Figure 4 and Figure 5 As shown, the track unit 3 includes a long side track 31, a short side track 32 and a lifting track 33. The long side track 31 is extended along the long side direction of the photovoltaic module, and the short side track 32 is extended along the short side direction of the photovoltaic module. The long side track 31 includes a plurality of first long side tracks 311. The first long side track 311 is arranged on the short side track 32 and can move along the short side track 32. The riveting unit 2 corresponds to the first long side track 311 one by one. The lifting track 33 is arranged on the first long side track 311 and can move along the first long side track 311. The track 33 includes a first lifting track 331 and a second lifting track 332. The riveting mechanism 22 is arranged on the first lifting track 331 and can be lifted and lowered along the first lifting track 331. The welding mechanism 23 is arranged on the second lifting track 332 and can be lifted and lowered along the second lifting track 332. The first lifting track 331 and the second lifting track 332 are used to make the riveting mechanism and the welding mechanism descend and operate separately during riveting or welding. The short side track 32 is used to make the riveting and welding units 2 move together along the short side direction of the photovoltaic module to adjust the position to match the junction box. The long side track 31 also includes a second long side track 312. The short side track 32 is arranged on the second long side track 312 and can be moved along the second long side track 312. The second long side track 312 is used to make the riveting and welding units 2 move together along the long side direction of the photovoltaic module to roughly adjust the position to match the junction box. The first long side track 311 is used to make each riveting and welding unit 2 move along the long side direction of the photovoltaic module separately to accurately adjust the position to match the junction box.

[0039] The riveting device of the junction box of the photovoltaic module also includes a second frame (not shown) and an alarm unit (not shown). The track unit and the alarm unit are arranged on the second frame, and the alarm unit is connected to the control unit. In this embodiment, the long side rail 31, the short side rail 32 and the lifting rail 33 all include a slide rail, a motor 34, a lead screw and a slider (not shown). The motor 34 is controlled to rotate by the control unit and drives the lead screw to rotate. The lead screw drives the slider screwed thereto to move, and the slider moves along the slide rail. The second long side rail 312 is arranged on the second frame. The second long side rail 312 is provided with two, and the two second long side rails 312 are respectively located on both sides of the photovoltaic module. The short side rail 32 is provided with one and spans above the photovoltaic module. The two ends of the short side rail 32 move on the second long side rail 312 through the slider. The first long side rail 311 is provided with three, and the first long side rail 311 moves on the short side rail 32 through the slider of the short side rail 32. The first lifting rail 331 and the second lifting rail 332 are provided with three groups corresponding to the first long side rail 311. Three corresponding first long side rails 311 are set up, each set of first lifting rails 331 and second lifting rails 332 are set on the corresponding first frame, the first frame moves on the corresponding first long side rails 311 through the slider of the corresponding first long side rails 311, each photovoltaic module is provided with three junction boxes, the three junction boxes extend along the short side direction of the photovoltaic module, three riveting and welding units 2 are provided and correspond to the three junction boxes respectively, each riveting and welding unit 2 corresponds to a set of first lifting rails 331 and second lifting rails 332, the riveting mechanism 22 is set on the first lifting rail 331 through the slider of the first lifting rail 331 and is lifted and lowered along the first lifting rail 331, the welding mechanism 23 and the image detection mechanism 21 are set on the second lifting rail 332 through the slider of the second lifting rail 332 and are lifted and lowered along the second lifting rail 332.

[0040] The second frame includes a frame 5 and a protective cover (not shown), the protective cover is fixed on the frame, the assembly line and positioning unit 1 are arranged on the frame, the alarm unit includes an alarm, the alarm is arranged on the top of the protective cover, and the alarm will be triggered by the control unit when the riveting hole detection is abnormal, the riveting effect is abnormal, the welding effect is abnormal or the equipment is abnormal. The control unit includes a control cabinet, and the control cabinet is connected to the second frame. The control cabinet is provided with a control screen and a display screen. The control screen is used to control and debug the positioning unit, the riveting and welding unit and the track unit, and the display screen is used to display the image detection effect of the image detection mechanism.

[0041] The riveting device of the photovoltaic module junction box also includes a barcode scanning unit (not shown), which is used to scan the barcode on the photovoltaic module. The barcode scanning unit is connected to the control unit and is arranged on the second frame. In this embodiment, the barcode scanning unit includes barcode scanning guns of various specifications, which are installed at the corners of the frame. The barcode scanning gun scans the barcode at the bottom of the photovoltaic module, and the process is posted by identifying the barcode information of the photovoltaic module, which has good traceability for the photovoltaic module.

[0042] The riveting mechanism 22 includes a nail feeding head, a flipping piece, a recovery tube, an upper three-jaw clamp and a lower three-jaw clamp. The nail feeding head is used to clamp the rivet, the flipping piece is used to drive the nail feeding head to flip, the recovery tube is connected to the upper three-jaw clamp, the recovery tube and the upper three-jaw clamp can be raised and lowered by air pressure, the upper three-jaw clamp is used to clamp the rivet rod after the nail feeding head is flipped, and the lower three-jaw clamp is used to clamp the rivet cap after the recovery tube and the upper three-jaw clamp are lowered. In this embodiment, the specific structure of the riveting mechanism is not shown in the figure. The riveting mechanism is connected to the control unit, and the nail feeding head clamps the rivet to be riveted. At this time, the nail rod of the rivet faces downward and the nail cap faces upward. During riveting, the flipping piece drives the nail feeding head to flip 180 degrees, and the rivet becomes a nail rod facing upward and the nail cap facing downward. The nail rod is clamped by the upper three-claw clamp, and then the recovery cylinder and the upper three-claw clamp send the rivet to the lower three-claw clamp through the drop in air pressure. The lower three-claw clamp clamps the nail cap, and the lower part of the nail cap extends into the riveting hole of the junction box. The recovery cylinder and the upper three-claw clamp pull up the nail rod through the increase in air pressure, and the nail cap expands under force to achieve riveting. The nail rod is broken and recovered by the recovery cylinder.

[0043] The riveting and welding device of the photovoltaic module junction box also includes a loading unit (not shown) of the riveting mechanism 22, which is connected to the control unit. The loading unit includes a vibration plate, a rivet conveying track, a screening area, a waiting area and a nail feeding tube. The vibration plate is connected to the screening area through the rivet conveying track, the screening area is connected to the waiting area through the rivet conveying track, the waiting area is connected to the nail feeding tube, and the nail feeding tube is connected to the nail feeding head. In this embodiment, the loading unit is arranged on the frame below the riveting and welding unit and the track unit, and the screening area is provided with a screening brush and a CCD camera. The screening brush can sweep away unqualified rivets to prevent bad rivets from flowing into the waiting area. The CCD camera is connected to the control unit to screen the rivet specifications and select qualified rivets to flow into the waiting area. The waiting area is provided with a photoelectric sensor, which is connected to the control unit. When the photoelectric sensor detects that there are insufficient rivets in the waiting area, the control unit controls the vibration plate to operate and transports the rivets through the rivet conveying track. When the riveting mechanism needs to be riveted, the control unit controls the waiting area to use high-pressure gas to feed the rivets into the nail feeding tube, and the nail feeding tube conveys the rivets to the nail feeding head with the nail rod facing down and the nail cap facing up to realize subsequent riveting.

[0044] refer to Figure 1 and Figure 7As shown, the riveting device of the photovoltaic module junction box also includes a residual material recovery unit of the riveting mechanism 22, the residual material recovery unit is connected to the control unit, and the residual material recovery unit includes a recovery pipe (not shown) and a residual material barrel 242, and the recovery pipe connects the recovery cylinder and the residual material barrel 242 and the high-pressure gas source. After the riveting is completed, the excess nail rod is recovered into the residual material barrel 242 through the recovery cylinder and the recovery pipe. The residual material barrel 242 in this embodiment is set on the frame on one side of the track unit 3, and there are three residual material barrels 242, corresponding to the three riveting mechanisms 22 respectively.

[0045] like Figures 5 to 7 As shown, the welding mechanism 23 includes a welding head 231, a tin feeding tube 232, an air blowing tube 233, a tin wire detection part (not shown) and a temperature controller (not shown). The tin feeding tube 232 and the air blowing tube 233 correspond to the welding head 231. The tin feeding tube 232 is connected to the tin wire detection part, and the welding head 231 is connected to the temperature controller. The temperature controller and the tin wire detection part are connected to the control unit. The tin feeding tube 232 is also connected to the air pipe clamp 234, and the air pipe clamp 234 is connected to the control unit. During welding, the control unit controls the air pipe clamp 234 to open, and the tin wire enters the tin feeding tube 232 through the tin wire detection part. The tin feeding tube 232 transports the tin wire to the welding area of ​​the welding head 231. The welding head 231 in this embodiment is an electric welding head. The electric welding head heats and contacts the tin wire to melt the tin wire and cover the riveting area. Then the air blowing tube 233 cools and solidifies the welding part to complete the welding. The temperature controller is used to set the temperature of the electric welding head, and the welding temperature of the electric welding head can be monitored in real time.

[0046] like Figures 5 to 7 As shown, the image detection mechanism 21 includes a shooting component, which is arranged on the second lifting track 332. The shooting component takes pictures of the riveting holes, riveting effects and welding effects and uploads them to the control unit. The control unit has an AI learning function for the pictures. The control unit collects and identifies abnormal pictures and then hands them over to AI for learning and reserve, thereby improving the subsequent control success rate of poor riveting or welding. In this embodiment, the shooting component is a CCD camera, and the image detection mechanism 21 is also connected to an MES system (Manufacturing Execution System), so that the riveting and welding device of the present invention has good control capabilities for the riveting and welding quality of photovoltaic modules.

[0047] like Figure 1 and Figure 8 As shown, the riveting and welding device provided in the embodiment of the present invention further includes a positioning unit 1, the positioning unit 1 is connected to the control unit, and the positioning unit 1 includes a lifting mechanism 11, and the lifting mechanism 11 lifts the photovoltaic components on the assembly line for image detection, riveting and welding. Figure 8As shown, the lifting mechanism 11 includes a lifting cylinder 111, a lifting plate 112 and a first support plate 113 for supporting the photovoltaic module. The piston shaft of the lifting cylinder 111 is connected to the lifting plate 112. The positioning unit 1 also includes a correcting mechanism 12. The correcting mechanism 12 and the first support plate 113 are arranged on the lifting plate 112. The correcting mechanism 12 includes a correcting cylinder 121, a correcting block 122 and an adjusting member. The adjusting member can adjust the positions of the correcting cylinder 121 and the correcting block 122 according to the size of the photovoltaic module. The adjusting member includes an adjusting rail 123 and an adjusting plate 124. The position of the adjusting plate 124 on the adjusting rail 123 can be adjusted according to the length of the photovoltaic module. The alignment cylinder 121 and the alignment block 122 are arranged on the adjusting plate 124. The adjusting plate 124 is provided with a second support plate 125 for supporting the photovoltaic module. The adjusting rail 123 and the second support plate 125 extend along the long side direction of the photovoltaic module, and the first support plate 113 extends along the short side direction of the photovoltaic module. The first support plate 113, the second support plate 125 and the alignment block 122 are provided with a buffer 101 of the photovoltaic module. The buffer 101 is used for buffering during support and alignment of the photovoltaic module to avoid damage to the photovoltaic module.

[0048] In this embodiment, a plurality of adjustment rails 123 are provided, and two adjustment plates 124 are provided, which are respectively arranged on both sides of the length direction of the photovoltaic component. A plurality of first support plates 113 are provided and are located between the two adjustment plates 124. The first support plate 113 is fixed on the adjustment rail 123. Each adjustment plate 124 is provided with a plurality of second support plates 125, two alignment cylinders 121 and alignment blocks 122 corresponding to the short sides of the photovoltaic component, and two alignment cylinders 121 and alignment blocks 122 corresponding to the long sides of the photovoltaic component. The second support plates 125 support the two ends of the photovoltaic component in the length direction to achieve more stable support for the photovoltaic component. The adjusting rail 123, the lifting plate 112 and the lifting cylinder 111 are located below the assembly line. The adjusting rail 123 is provided with a connecting groove 126, which extends along the length direction of the adjusting rail 123. The adjusting plate 124 is provided with a threaded hole (not shown). The threaded hole and the connecting groove 126 are connected by a threaded connector 4 to fix the adjusting plate 124 and the adjusting rail 123. The adjusting plate 124 and the adjusting rail 123 are released by adjusting the threaded connector 4. Manually adjust the fixed position of the adjustment plate 124 on the adjustment rail 123 according to the length of the photovoltaic module. Specifically, loosen the threaded connector 4 on the adjustment plate 124, and the lower end of the threaded connector 4 disengages from the connecting groove 126, thereby releasing the fixation between the adjustment plate 124 and the adjustment rail 123. Then move the adjustment plate 124 along the adjustment rail 123. After moving to a suitable position, tighten the threaded connector 4, and the lower end of the threaded connector 4 extends into the connecting groove 126 and has an interference fit with the connecting groove 126, thereby fastening the adjustment plate 124 to the adjustment rail 123 to complete the adjustment.

[0049] It is worth mentioning that the riveting and welding device of the present invention will adjust the positions of the correction mechanism 12 and the junction box according to the sizes of different photovoltaic modules before use. After the adjustment, the correction coordinates of the correction mechanism 12 and the coordinates of the junction box are input into the control unit. When the riveting and welding device is formally used, after the photovoltaic modules flow in through the assembly line, the correction mechanism 12, the riveting and welding unit 2, and the track unit 3 will operate according to the coordinates of the corresponding photovoltaic module size in the control unit.

[0050] Before the riveting welding operation, the riveting welding device of the present invention is provided with three junction boxes at the middle bus bar of the photovoltaic module 100, and the copper sheet of each junction box has two riveting holes and two lead-out terminal through-holes corresponding to the riveting holes respectively, and the middle bus bar has a lead-out terminal bent upward, and the lead-out terminal is also a copper sheet. The lead-out terminal passes through the lead-out terminal through-hole and then bends against the copper sheet of the junction box, and the lead-out terminal has a through hole corresponding to the riveting hole; during the riveting welding operation, the photovoltaic module 100 flows from the feed port 301 to the top of the positioning unit 1 through the assembly line 300, and the induction part of the assembly line senses that the photovoltaic module has reached the designated position After receiving the signal, the control unit controls the correcting mechanism 12 to correct the photovoltaic module and the lifting mechanism 11 to lift the photovoltaic module. Then, the control unit controls the riveting unit 2 to move along the short side or long side of the photovoltaic module on the track unit 3 to the position above the junction box 200. At this time, the image detection mechanism 21 first performs image detection on the riveting hole position of the junction box (the through hole of the lead-out terminal is aligned with the riveting hole of the junction box), and transmits the image detection result to the control unit. If the riveting hole position is normal, the control unit gives an OK signal and controls the riveting mechanism 22 to descend on the track unit 3 to rivet the riveting hole position of the junction box.

[0051] During riveting, the rivet is transported to the rivet feeding head by the rivet feeding tube with the rivet rod facing downward and the rivet cap facing upward. The rivet feeding head flips over, the recovery tube and the upper three-claw clamp descend by air pressure, and the lower part of the rivet cap extends into the riveting hole of the junction box. The recovery tube and the upper three-claw clamp rise by air pressure to pull up the rivet rod, and the rivet cap expands under force to achieve riveting of the lead-out terminal and the copper sheet of the junction box. The rivet rod is broken and recovered by the recovery tube and the residual material recovery unit. Each junction box has two riveting holes, and each riveting mechanism 22 is riveted and fixed twice. When the hole position is switched, the rivet mechanism 22 rises and falls on the track unit 3 Or move along the short side or long side of the photovoltaic module. If the riveting hole position is abnormal, the control unit gives an abnormal signal to trigger the alarm and control the riveting mechanism 22 not to rivet the hole position. That is, when a riveting hole position of the junction box is abnormal, the control unit can control the riveting mechanism 22 to skip the riveting hole position. If the riveting holes of all the junction boxes are abnormal, the control unit gives an abnormal signal to trigger the alarm and control the correction mechanism 12 to open and the lifting mechanism 11 to drive the photovoltaic module to descend. The photovoltaic module is directly transferred from the assembly line for manual review.

[0052] After the riveting is completed, the image detection mechanism 21 moves on the track unit 3 along the short side or long side direction of the photovoltaic module to perform image detection on the riveting effect on the junction box, and transmits the image detection effect to the control unit. If the riveting effect is normal, the control unit gives an OK signal and controls the welding mechanism 23 to descend on the track unit 3 to weld the hole position of the junction box. Each welding mechanism 23 welds twice. When the welding point is switched, the welding mechanism 23 rises and falls on the track unit 3 or moves along the short side or long side direction of the photovoltaic module. If the riveting effect is abnormal, the control unit gives an abnormal signal to trigger the alarm and control the welding mechanism 23 not to weld the point (skip the point). If the riveting effects of all junction boxes are abnormal, the control unit gives an abnormal signal to trigger the alarm and control the lifting mechanism 11 to drive the photovoltaic module to descend. The photovoltaic module is directly transferred from the assembly line and handed over to manual review.

[0053] After welding is completed, the image detection mechanism 21 moves along the short side or long side direction of the photovoltaic module on the track unit 3 to perform image detection on the welding effect on the junction box, and transmits the image detection effect to the control unit. If the welding effect is normal, the control unit gives an OK signal. If the welding effect is abnormal, the control unit gives an abnormal signal to trigger the alarm. Finally, the control unit controls the lifting mechanism 11 to drive the photovoltaic module to descend, and the photovoltaic module is transmitted from the discharge port 302 by the assembly line. The photovoltaic module with abnormal welding effect is handed over to manual review.

[0054] Through the above process, the multiple riveting and welding units 2 of the present invention correspond one-to-one with the junction boxes of the photovoltaic modules, and the junction boxes of the photovoltaic modules can be riveted or welded at the same time. The riveting mechanism 22 and the welding mechanism 23 can be moved integrally along the short side or long side direction of the photovoltaic module and respectively descended for riveting or welding. The riveting mechanism and the welding mechanism have a large adjustable range of movement, can quickly and accurately locate the hole position of the junction box to achieve riveting or welding, and have high riveting and welding efficiency. At the same time, the image detection mechanism 21 of the present invention can perform image detection on the riveting hole position, riveting effect and welding effect. The image detection is comprehensive, which can achieve good card control of the photovoltaic module and improve the yield of the junction box of the photovoltaic module.

[0055] The embodiment of the present invention also provides the following technical solutions:

[0056] Technical solution 1, a riveting and welding device for a photovoltaic module junction box, comprising a plurality of riveting and welding units and a track unit, wherein the plurality of riveting and welding units are used to correspond one-to-one with the junction boxes of the photovoltaic module, and the riveting and welding units can be moved on the track unit along the short side or long side direction of the photovoltaic module, and the riveting and welding units include a first frame and an image detection mechanism, a riveting mechanism and a welding mechanism arranged on the first frame, and the riveting mechanism and the welding mechanism can be raised and lowered respectively on the track unit.

[0057] Technical Solution 2. According to the riveting and welding device for the junction box of a photovoltaic module as described in Technical Solution 1, the track unit includes a long side track, a short side track and a lifting track, the long side track is extended along the long side direction of the photovoltaic module, the short side track is extended along the short side direction of the photovoltaic module, the long side track includes a plurality of first long side rails, the first long side rails are arranged on the short side rails and can move along the short side rails, the riveting and welding unit corresponds to the first long side rails one by one, the lifting rails are arranged on the first long side rails and can move along the first long side rails, the lifting rails include a first lifting rail and a second lifting rail, the riveting mechanism is arranged on the first lifting rail and can be lifted and lowered along the first lifting rail, and the welding mechanism is arranged on the second lifting rail and can be lifted and lowered along the second lifting rail.

[0058] Technical Solution 3: According to the riveting welding device for the photovoltaic module junction box described in Technical Solution 2, the long side rail also includes a second long side rail, and the short side rail is arranged on the second long side rail and can move along the second long side rail.

[0059] Technical Solution 4: The riveting and welding device for the photovoltaic module junction box according to Technical Solution 1 also includes a control unit, and the riveting and welding unit and the track unit are both connected to the control unit, and the control unit is used to control the operation of the track unit, the riveting mechanism and the welding mechanism based on the information detected by the image detection mechanism.

[0060] Technical Solution 5. The riveting and welding device for the photovoltaic module junction box according to Technical Solution 4 further includes a scanning unit and a second frame, wherein the scanning unit and the track unit are arranged on the second frame, and the scanning unit is used to scan the barcode on the photovoltaic module, and the scanning unit is connected to the control unit.

[0061] Technical Solution 6. According to the riveting welding device for the photovoltaic module junction box described in Technical Solution 1, the riveting mechanism includes a nail feeding head, a flip piece, a recovery tube, an upper three-jaw clamp and a lower three-jaw clamp, the nail feeding head is used to clamp the rivet, the flip piece is used to drive the nail feeding head to flip, the recovery tube is connected to the upper three-jaw clamp, the recovery tube and the upper three-jaw clamp can be raised and lowered by air pressure, the upper three-jaw clamp is used to clamp the rivet rod after the nail feeding head is flipped, and the lower three-jaw clamp is used to clamp the rivet cap after the recovery tube and the upper three-jaw clamp are lowered.

[0062] Technical Solution 7. The riveting and welding device for the junction box of a photovoltaic module according to Technical Solution 6 also includes a loading unit of the riveting mechanism, the loading unit includes a vibration plate, a rivet conveying track, a screening area, a waiting area and a nail feeding tube, the vibration plate is connected to the screening area through the rivet conveying track, the screening area is connected to the waiting area through the rivet conveying track, the waiting area is connected to the nail feeding tube, and the nail feeding tube is connected to the nail feeding head.

[0063] Technical Solution 8: The riveting and welding device for the photovoltaic module junction box according to Technical Solution 6 also includes a residual material recovery unit of the riveting mechanism, and the residual material recovery unit includes a recovery pipe and a residual material barrel, and the recovery pipe connects the recovery tube and the residual material barrel.

[0064] Technical Solution 9. According to the riveting welding device for the photovoltaic module junction box described in Technical Solution 4, the welding mechanism includes a welding head, a tin feeding tube, an air blow pipe, a tin wire detection component and a temperature controller, the tin feeding tube and the air blow pipe correspond to the welding head, the tin feeding tube is connected to the tin wire detection component, the welding head is connected to the temperature controller, and the temperature controller and the tin wire detection component are connected to the control unit.

[0065] Technical Solution 10: According to the riveting welding device for the junction box of a photovoltaic module described in Technical Solution 2, the image detection mechanism is arranged on the second lifting rail, and the image detection mechanism includes a shooting component, and the shooting component is used for shooting.

[0066] Technical Solution 11. The riveting and welding device for the photovoltaic module junction box according to Technical Solution 4 also includes a positioning unit, which is connected to the control unit. The positioning unit includes a lifting mechanism, which lifts the photovoltaic module on the assembly line for image detection, riveting and welding. The lifting mechanism includes a lifting cylinder, a lifting plate and a first support plate for supporting the photovoltaic module, and the piston shaft of the lifting cylinder is connected to the lifting plate.

[0067] Technical Solution 12. According to the riveting welding device for the junction box of a photovoltaic module described in Technical Solution 11, the positioning unit also includes a correction mechanism, the correction mechanism and the first support plate are arranged on the lifting plate, the correction mechanism includes a correction cylinder, a correction block and an adjusting member, the adjusting member can adjust the position of the correction cylinder and the correction block according to the size of the photovoltaic module, the adjusting member includes an adjusting rail and an adjusting plate, the position of the adjusting plate on the adjusting rail can be adjusted according to the length of the photovoltaic module, the correction cylinder and the correction block are arranged on the adjusting plate, and a second support plate for supporting the photovoltaic module is provided on the adjusting plate, the adjustment rail and the second support plate extend along the long side direction of the photovoltaic module, the first support plate extends along the short side direction of the photovoltaic module, and the first support plate, the second support plate and the correction block are provided with a buffer of the photovoltaic module.

[0068] Technical Solution 13. According to the riveting welding device for the junction box of a photovoltaic module described in Technical Solution 12, the adjusting rail, the lifting plate and the lifting cylinder are located below the assembly line, the adjusting rail is provided with a connecting groove, the connecting groove extends along the length direction of the adjusting rail, the adjusting plate is provided with a threaded hole, the threaded hole and the connecting groove are connected by a threaded connector to fix the adjusting plate and the adjusting rail, and the adjusting plate and the adjusting rail are released by adjusting the threaded connector.

[0069] Technical Solution 14. According to the riveting and welding device for the junction box of a photovoltaic module described in Technical Solution 5, an alarm unit is provided on the second frame, and the alarm unit is connected to the control unit. The control unit includes a control cabinet, and the control cabinet is connected to the second frame. A control panel and a display screen are provided on the control cabinet, and the control panel is used to control and debug the riveting and welding unit and the track unit, and the display screen is used to display the image detection effect of the image detection mechanism.

[0070] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0071] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A riveting device for a photovoltaic module junction box, It is characterized in that It includes multiple riveting and welding units and a track unit. The multiple riveting and welding units are used to correspond one-to-one with the junction boxes of the photovoltaic components. The riveting and welding units can move on the track unit along the short side or long side direction of the photovoltaic components. The riveting and welding units include a first frame and an image detection mechanism, a riveting mechanism and a welding mechanism arranged on the first frame. The riveting mechanism and the welding mechanism can be raised and lowered respectively on the track unit.

2. The riveting welding device for the photovoltaic module junction box according to claim 1, It is characterized in that The track unit includes a long side track, a short side track and a lifting track, the long side track is extended along the long side direction of the photovoltaic component, the short side track is extended along the short side direction of the photovoltaic component, the long side track includes a plurality of first long side tracks, the first long side tracks are arranged on the short side tracks and can move along the short side tracks, the riveting and welding units correspond to the first long side tracks one by one, the lifting track is arranged on the first long side track and can move along the first long side track, the lifting track includes a first lifting track and a second lifting track, the riveting mechanism is arranged on the first lifting track and can be lifted and lowered along the first lifting track, and the welding mechanism is arranged on the second lifting track and can be lifted and lowered along the second lifting track; Preferably, the long side rail further includes a second long side rail, and the short side rail is arranged on the second long side rail and can move along the second long side rail.

3. The riveting welding device for a photovoltaic module junction box according to claim 1, It is characterized in that It also includes a control unit, the riveting and welding unit and the track unit are connected to the control unit, and the control unit is used to control the track unit, the riveting mechanism and the welding mechanism to work based on the information detected by the image detection mechanism; Preferably, it further comprises a barcode scanning unit and a second frame, wherein the barcode scanning unit and the track unit are arranged on the second frame, the barcode scanning unit is used to scan the barcode on the photovoltaic component, and the barcode scanning unit is connected to the control unit.

4. The riveting welding device for a photovoltaic module junction box according to claim 1, It is characterized in that The riveting mechanism comprises a nail feeding head, a turning piece, a recovery cylinder, an upper three-claw clamp and a lower three-claw clamp, wherein the nail feeding head is used to clamp the rivet, the turning piece is used to drive the nail feeding head to turn over, the recovery cylinder is connected to the upper three-claw clamp, the recovery cylinder and the upper three-claw clamp can be raised and lowered by air pressure, the upper three-claw clamp is used to clamp the rivet rod after the nail feeding head is turned over, and the lower three-claw clamp is used to clamp the rivet cap after the recovery cylinder and the upper three-claw clamp are lowered; Preferably, the riveting mechanism further comprises a feeding unit, the feeding unit comprising a vibration plate, a rivet conveying track, a screening area, a waiting area and a nail feeding tube, the vibration plate is connected to the screening area through the rivet conveying track, the screening area is connected to the waiting area through the rivet conveying track, the waiting area is connected to the nail feeding tube, and the nail feeding tube is connected to the nail feeding head; Preferably, the riveting mechanism further comprises a residual material recovery unit, wherein the residual material recovery unit comprises a recovery pipe and a residual material barrel, and the recovery pipe connects the recovery tube and the residual material barrel.

5. The riveting welding device for the photovoltaic module junction box according to claim 3, It is characterized in that The welding mechanism includes a welding head, a tin feeding tube, an air blowing tube, a tin wire detection component and a temperature controller. The tin feeding tube and the air blowing tube correspond to the welding head, the tin feeding tube is connected to the tin wire detection component, the welding head is connected to the temperature controller, and the temperature controller and the tin wire detection component are connected to the control unit.

6. The riveting welding device for a photovoltaic module junction box according to claim 1, It is characterized in that The image detection mechanism is arranged on the second lifting track, and the image detection mechanism includes a shooting component, and the shooting component is used for shooting.

7. The riveting welding device for a photovoltaic module junction box according to claim 3, It is characterized in that It also includes a positioning unit, which is connected to the control unit. The positioning unit includes a lifting mechanism, which lifts the photovoltaic components on the assembly line for image detection, riveting and welding. The lifting mechanism includes a lifting cylinder, a lifting plate and a first support plate for supporting the photovoltaic components. The piston shaft of the lifting cylinder is connected to the lifting plate.

8. The riveting welding device for a photovoltaic module junction box according to claim 7, It is characterized in that The positioning unit also includes a return mechanism, and the return mechanism and the first support plate are arranged on the lifting plate. The return mechanism includes a return cylinder, a return block and an adjusting member. The adjusting member can adjust the position of the return cylinder and the return block according to the size of the photovoltaic component. The adjusting member includes an adjusting rail and an adjusting plate. The position of the adjusting plate on the adjusting rail can be adjusted according to the length of the photovoltaic component. The return cylinder and the return block are arranged on the adjusting plate. A second support plate for supporting the photovoltaic component is provided on the adjusting plate. The adjusting rail and the second support plate extend along the long side direction of the photovoltaic component, and the first support plate extends along the short side direction of the photovoltaic component. The first support plate, the second support plate and the return block are provided with a buffer of the photovoltaic component.

9. The riveting welding device for a photovoltaic module junction box according to claim 8, It is characterized in that The adjusting rail, the lifting plate and the lifting cylinder are located below the assembly line. The adjusting rail is provided with a connecting groove, which extends along the length direction of the adjusting rail. The adjusting plate is provided with a threaded hole. The threaded hole and the connecting groove are connected by a threaded connector to fix the adjusting plate and the adjusting rail. The adjusting plate and the adjusting rail are released by adjusting the threaded connector.

10. The riveting welding device for a photovoltaic module junction box according to claim 3, It is characterized in that The second frame is provided with an alarm unit, and the alarm unit is connected to the control unit. The control unit includes a control cabinet, and the control cabinet is connected to the second frame. The control cabinet is provided with a control panel and a display screen. The control panel is used to control and debug the riveting unit and the track unit, and the display screen is used to display the image detection effect of the image detection mechanism.

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