Rivet welding device of photovoltaic module junction box

Abstract

The utility model discloses a photovoltaic module junction box rivet welding device which comprises a plurality of rivet welding units and a track unit, the plurality of rivet welding units are used for being in one-to-one correspondence with the photovoltaic module junction boxes, and the rivet welding units can move on the track unit along the short side or long side 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 utility model, 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 utility model relates to the technical field of photovoltaic components, in particular to a riveting device for a photovoltaic component junction box. Background Art

[0002] The junction box of a photovoltaic module connects to the solar cells within the module, directing the current generated by the solar cells. Furthermore, diodes are incorporated into the junction box to protect the solar cell circuit. During the manufacture of photovoltaic modules, the module's lead terminals are soldered to the junction box using a tinning process. However, poor solder connections between the lead terminals and the junction box are prone to occur, which can cause the diodes within the junction box to fail or burn out, potentially damaging the photovoltaic module.

[0003] Based on the above, it is necessary to provide a device that can improve the welding effect between the photovoltaic module lead wire terminal and the junction box. Utility Model Content

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

[0005] The specific technical solutions provided by this utility model are as follows:

[0006] A riveting device for a photovoltaic module junction box is provided, comprising a plurality of riveting units and a track unit. The riveting units correspond one-to-one to the junction boxes of the photovoltaic modules. The riveting units can be moved on the track units along the short side or long side of the photovoltaic modules. The riveting units include an image detection mechanism, a riveting mechanism, and a welding mechanism. The riveting mechanism and the welding mechanism can be raised and lowered separately 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 extends along the long side direction of the photovoltaic component, the short side track extends along the short side direction of the photovoltaic component, 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 unit corresponds to the first long side rails one by one, the lifting track is arranged on the first long side rails and can move along the first long side rails, 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 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.

[0009] As a preferred embodiment of the above solution, the riveting device of the photovoltaic module junction box also includes a control unit, and the riveting 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 solution, the riveting device of the photovoltaic module junction box also includes a barcode scanning unit and a second frame, 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 module, and the barcode 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-claw clamp and a lower three-claw 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-claw clamp, the recovery tube 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 flipped, and the lower three-claw clamp is used to clamp the rivet cap after the recovery tube and the upper three-claw clamp are lowered.

[0012] As a preferred embodiment of the above scheme, the riveting 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 solution, the riveting device of the photovoltaic module junction box further includes a residual material recovery unit of the riveting mechanism, the residual material recovery unit includes a recovery pipe and a residual material barrel, and the recovery pipe connects the recovery cylinder 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 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.

[0015] As a preferred embodiment of the above solution, the image detection mechanism is arranged on the second lifting track, and the image detection mechanism includes a camera, which takes pictures of the rivet 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. The positioning unit includes a lifting mechanism, which lifts the photovoltaic module on the assembly line to perform the 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.

[0017] As a preferred embodiment of the above scheme, 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 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 correction cylinder and the correction block are arranged on the adjusting plate, and the adjusting plate is provided with a second support plate for supporting the photovoltaic component, 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 correction block are provided with a buffer of the photovoltaic component.

[0018] As a preferred embodiment of the above scheme, the adjustment rail, the lifting plate and the lifting cylinder are located below the assembly line, the adjustment rail is provided with a connecting groove, the connecting groove extends along the length direction of the adjustment rail, the adjustment plate is provided with a threaded hole, the threaded hole and the connecting groove are connected by a threaded connector to fix the adjustment plate and the adjustment rail, and the adjustment plate and the adjustment 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, the alarm unit is connected to the control unit, the control unit includes a control cabinet, the control cabinet is connected to the second rack, a control screen and a display screen are provided on the control cabinet, the control screen 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 virtue of the above technical solution, the riveting welding device for a photovoltaic module junction box provided in an embodiment of the present invention comprises a riveting welding unit including a first frame and a riveting mechanism and a welding mechanism disposed on the first frame, i.e., the riveting mechanism and the welding mechanism are designed as an integrated whole. This allows the lead terminal of the photovoltaic module to be riveted first and then welded to the junction box, thereby improving the problem of poor welding between the lead terminal and the junction box, and performing riveting and welding is more efficient than operating two separate devices. Furthermore, an image detection mechanism can detect the riveting and welding effects under the drive of the riveting welding unit, which facilitates the riveting welding device to accurately position the lead terminal and the junction box so that the two are firmly connected, thereby improving the yield rate of the photovoltaic module. In addition, since the riveting welding unit can be moved and raised along the short side or long side of the photovoltaic module on the track unit, the riveting mechanism and the welding mechanism have a large range of movement and controllability, and can quickly and accurately locate the hole position of the junction box to achieve riveting and welding, with high riveting efficiency, which facilitates the riveting welding unit to connect different lead terminals of the photovoltaic module to 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 paying any 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 one embodiment of the present utility model;

[0023] Figure 2 for Figure 1 A structural diagram from another angle;

[0024] Figure 3 for Figure 1 Schematic diagram of the top view structure;

[0025] Figure 4 A schematic structural diagram of a riveting welding unit and a track unit in a riveting welding device provided in one embodiment of the present utility model;

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

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

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

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

[0030] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall 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 be present therebetween. 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 be present therebetween. The terms "vertical", "horizontal", "left", "right", "up", "down", "inside", "outside", "bottom", etc. used in this specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 terminals of photovoltaic modules are connected to the junction box by soldering, but this is prone to defects such as cold solder joints. By providing rivet holes at the welding points of the junction box, riveting the lead terminals to the rivet holes, and then performing soldering at the rivet holes, the welding effect between the lead terminals and the junction box can be enhanced, thereby improving the yield rate of photovoltaic modules.

[0033] The existing riveting and welding mechanisms of photovoltaic module junction boxes require separate movement, resulting in low riveting and welding efficiency. Furthermore, the limited range of movement and controllability of these mechanisms prevents them from quickly and accurately locating the junction box holes for riveting or welding, further reducing riveting and welding efficiency. Furthermore, riveting or welding the junction box requires image inspection of the riveting or welding process. However, existing image inspection mechanisms are incomplete and cannot effectively control the module, resulting in low yield rates for photovoltaic modules.

[0034] Based on the above, an embodiment of the present invention provides a riveting and welding device for a photovoltaic module junction box, which can automatically rivet the lead wire terminals of the photovoltaic module to the junction box and then weld them, thereby enhancing the welding effect between the lead wire terminals and the junction box, thereby improving the yield rate of the photovoltaic module. The riveting mechanism and the welding mechanism are designed as an integrated whole, which can improve the riveting and welding efficiency of the junction box. At the same time, the image detection mechanism can perform comprehensive image detection, achieve good card control of the photovoltaic module, and further improve the yield rate 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 device for the junction box of a photovoltaic module provided by the embodiment of the present invention includes a plurality of riveting units 2 and a track unit 3. The plurality of riveting units 2 are used to correspond one-to-one with the junction box 200 of the photovoltaic module 100. The riveting units 2 can move along the short side or long side of the photovoltaic module on the track unit 3. The riveting units 2 include a first frame (not shown) and an image detection mechanism 21, a riveting mechanism 22, and a welding mechanism 23 provided on the first frame. The riveting mechanism 22 and the welding mechanism 23 can be raised and lowered separately on the track unit 3. 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 of the riveting process of the photovoltaic module, realizes good card control of the photovoltaic module, and improves the yield rate of the photovoltaic module.

[0036] The riveting welding device for a photovoltaic module junction box provided by the embodiment of the utility model is based on a riveting welding unit 2 including a first frame and a riveting mechanism 22 and a welding mechanism 23 disposed on the first frame. That is, the riveting mechanism 22 and the welding mechanism 23 are designed as an integrated whole. This enables the lead terminal of the photovoltaic module to be riveted first and then welded to the junction box, thereby improving the problem of poor solder joints between the lead terminal and the junction box. Riveting and welding are more efficient than operating two separate devices. In addition, the image detection mechanism 21 can detect the riveting and welding effects under the drive of the riveting welding unit 2, which facilitates the riveting welding device to accurately position the lead terminal and the junction box so that the two are firmly connected, thereby improving the yield rate of the photovoltaic module. In addition, since the riveting and welding unit 2 can move and rise and fall along the short side or long side of the photovoltaic module on the track unit 3, the riveting mechanism 22 and the welding mechanism 23 have a large adjustable range of movement, 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 with 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. The control unit 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 extends along the long side direction of the photovoltaic module, and the short side track 32 extends 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 disposed on the first lifting track 331 and can be lifted and lowered along the first lifting track 331. The welding mechanism 23 is disposed 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 allow the riveting mechanism and the welding mechanism to be lowered separately during riveting or welding operations. The short side track 32 is used to move the riveting and welding units 2 together along the short side of the photovoltaic module to adjust their positions to match the junction box. The long side track 31 also includes a second long side track 312. The short side track 32 is disposed 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 move the riveting and welding units 2 together along the long side of the photovoltaic module to roughly adjust their positions to match the junction box. The first long side track 311 is used to allow each riveting and welding unit 2 to move separately along the long side of the photovoltaic module to precisely adjust their positions to match the junction box.

[0039] The riveting device of the photovoltaic module junction box also includes a second frame (not shown) and an alarm unit (not shown). The rail 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 by the control unit to rotate and drive 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. There are two second long side rails 312. 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. 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, and each group of first lifting rails 331 and second lifting rails 332 are set on the corresponding first rack. The first rack moves on the corresponding first long side rail 311 through the slider of the corresponding first long side rail 311. Three junction boxes are provided on each photovoltaic module, and the three junction boxes extend along the short side direction of the photovoltaic module. Three riveting welding units 2 are provided and correspond to the three junction boxes respectively. Each riveting welding unit 2 corresponds to a group 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 rack 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. When the rivet hole detection is abnormal, the riveting effect is abnormal, the welding effect is abnormal, or the equipment is abnormal, the alarm will be triggered by the control unit. The control unit includes a control cabinet. The control cabinet is connected to the second rack. 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. The display screen is used to display the image detection effect of the image detection mechanism.

[0041] The riveting device for 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 installed on the second frame. In this embodiment, the barcode scanning unit includes a barcode scanning gun of various specifications, which is installed at the corner of the frame. The barcode scanning gun scans the barcode on the bottom of the photovoltaic module to identify the barcode information of the photovoltaic module and process accounting, providing good traceability of the photovoltaic module.

[0042] The riveting mechanism 22 includes a nail feeding head, a turning piece, a recovery tube, an upper three-claw clamp and a lower three-claw clamp. 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 tube is connected to the upper three-claw clamp, the recovery tube 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 tube and the upper three-claw 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 is facing downward and the nail cap is facing upward. During riveting, the flip part drives the nail feeding head to flip 180 degrees, and the rivet becomes 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 is forced to expand to achieve riveting. The nail rod is broken and recovered by the recovery cylinder.

[0043] The riveting device of the photovoltaic module junction box also includes a loading unit (not shown) of the riveting mechanism 22. The loading unit 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 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. 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 for the photovoltaic module junction box also includes a residual material recovery unit for the riveting mechanism 22. The residual material recovery unit is connected to the control unit and includes a recovery pipe (not shown) and a residual material barrel 242. The recovery pipe connects the recovery cylinder, the residual material barrel 242, and the high-pressure gas source. After riveting is completed, the excess nail rod is recovered into the residual material barrel 242 through the recovery cylinder and the recovery pipe. In this embodiment, the residual material barrel 242 is set on the frame on one side of the track unit 3. There are three residual material barrels 242, corresponding to the three riveting mechanisms 22.

[0045] like Figures 5 to 7 As shown, the welding mechanism 23 includes a welding head 231, a tin feeding tube 232, an air blow pipe 233, a tin wire detection part (not shown) and a thermostat (not shown). The tin feeding tube 232 and the air blow pipe 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 thermostat. The thermostat 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, which 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 the contact tin wire so that the tin wire melts and covers the riveted area. Then the air blow pipe 233 cools and solidifies the weld to complete the welding. The thermostat is used to set the temperature of the electric welding head and can monitor the welding temperature of the electric welding head in real time.

[0046] like Figures 5 to 7 As shown, the image detection mechanism 21 includes a camera. The image detection mechanism 21 is set on the second lifting track 332. The camera takes pictures of the rivet hole positions, 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 passes them to the AI ​​for learning and storage, thereby improving the success rate of subsequent card control of poor riveting or welding. In this embodiment, the camera is a CCD camera, and the image detection mechanism 21 is also connected to the MES system (Manufacturing Execution System), so that the riveting and welding device of the utility model has good card 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 by the embodiment of the present invention further includes a positioning unit 1, which is connected to the control unit and includes a lifting mechanism 11. The lifting mechanism 11 lifts the photovoltaic modules 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 position of the correcting cylinder 121 and the correcting block 122 according to the size of the photovoltaic module. The adjusting part 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 correction cylinder 121 and the correction 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 correction block 122 are provided with a buffer 101 of the photovoltaic module. The buffer 101 is used for buffering during support and correction of the photovoltaic module to avoid damage to the photovoltaic module.

[0048] In this embodiment, there are several adjustment rails 123, and there are two adjustment plates 124, which are respectively arranged on both sides of the length direction of the photovoltaic component. There are several first support plates 113 and they 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 several 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 the appropriate position, tighten the threaded connector 4, and the lower end of the threaded connector 4 extends into the connecting groove 126 and interference fits with the connecting groove 126, thereby fastening the adjustment plate 124 to the adjustment rail 123 to complete the adjustment.

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

[0050] Before the riveting welding operation, the PV module 100 is provided with three junction boxes at the middle bus bar of the present invention. The copper sheet of each junction box has two rivet holes and two lead-out terminal through-holes corresponding to the rivet holes. The middle bus bar has a lead-out terminal bent upward. The lead-out terminal is also a copper sheet. The lead-out terminal passes through the lead-out terminal through-hole and then bends and rests on the copper sheet of the junction box. The lead-out terminal has a through-hole corresponding to the riveting hole. During the riveting welding operation, the PV module 100 flows from the feed port 301 through the assembly line 300 to the top of the positioning unit 1. The induction part of the assembly line senses that the PV module has reached the designated position. Position, the control unit receives the signal to control the correcting mechanism 12 to correct the position of the photovoltaic module and the lifting mechanism 11 to lift the photovoltaic module. Then the control unit controls the riveting unit 2 to move on the track unit 3 along the short side or long side direction of the photovoltaic module to a position above the junction box 200. At this time, the image detection mechanism 21 first performs an image detection on the riveting hole position of the junction box (the alignment state of the through hole of the lead terminal and 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 nail feeding head by the nail feeding tube with the nail rod facing downward and the nail cap facing upward. The nail feeding head flips over, the recovery cylinder and the upper three-claw clamp are lowered by air pressure, 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 are pulled up by air pressure, and the nail cap is forced to expand to achieve riveting of the lead-out terminal and the copper sheet of the junction box. The nail rod is broken and recycled by the recovery cylinder 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 riveting 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 rivet hole position is abnormal, the control unit will give an abnormal signal to trigger the alarm and control the riveting mechanism 22 not to rivet the hole position. That is, when a rivet 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 rivet holes of all junction boxes are abnormal, the control unit will give an abnormal signal to trigger the alarm and control the correcting 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 to be manually reviewed.

[0052] After the riveting is completed, the image detection mechanism 21 moves on the track unit 3 along the short side or long side of the photovoltaic module to perform image detection on the riveting effect of 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 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 for manual review.

[0053] After welding is completed, the image detection mechanism 21 moves along the short side or long side 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 result to the control unit. If the welding effect is normal, the control unit will give an OK signal. If the welding effect is abnormal, the control unit will give an abnormal signal to trigger the alarm. Finally, the control unit controls the lifting mechanism 11 to drive the photovoltaic module to descend. The photovoltaic module is discharged from the discharge port 302 by the assembly line. The photovoltaic module with abnormal welding effect is handed over for manual review.

[0054] Through the above process, the multiple riveting and welding units 2 of the utility model correspond one-to-one with the junction box of the photovoltaic module, and the junction box of the photovoltaic module 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 lowered separately 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 utility model 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 photovoltaic module junction box.

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

[0056] Technical Solution 1: A riveting device for a photovoltaic module junction box, comprising a plurality of riveting units and a track unit. The plurality of riveting units are used to correspond one-to-one with the junction boxes of the photovoltaic module. The riveting units can be moved on the track unit along the short side or long side of the photovoltaic module. The riveting 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 separately on the track unit.

[0057] Technical Solution 2. According to the riveting welding device for the photovoltaic module junction box described in Technical Solution 1, the rail unit includes a long side rail, a short side rail and a lifting rail. The long side rail extends along the long side direction of the photovoltaic module, and the short side rail extends along the short side direction of the photovoltaic module. The long side rail includes a plurality of first long side rails, and the first long side rail is arranged on the short side rail and can be moved along the short side rail. The riveting welding unit corresponds one-to-one to the first long side rail, and the lifting rail is arranged on the first long side rail and can be moved along the first long side rail. The lifting rail includes 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 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 device for the photovoltaic module junction box according to Technical Solution 1 further includes a control unit, wherein the riveting 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 welding device for the photovoltaic module junction box according to Technical Solution 4 further includes a code scanning unit and a second frame, the code scanning unit and the track unit are arranged on the second frame, the code scanning unit is used to scan the barcode on the photovoltaic module, and the code scanning unit is connected to the control unit.

[0061] Technical Solution 6. According to the riveting welding device of the photovoltaic module junction box described in Technical Solution 1, the riveting mechanism includes a nail feeding head, a flipping piece, a recovery tube, an upper three-claw clamp and a lower three-claw 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-claw clamp, the recovery tube 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 flipped, and the lower three-claw clamp is used to clamp the rivet cap after the recovery tube and the upper three-claw clamp are lowered.

[0062] Technical Solution 7. The riveting welding device for the photovoltaic module junction box according to Technical Solution 6 also includes a loading unit of the riveting mechanism, the loading unit including 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 welding device for the photovoltaic module junction box according to Technical Solution 6 further includes a residual material recovery unit of the riveting mechanism, 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 device for the photovoltaic module junction box described in Technical Solution 2, the image detection mechanism is arranged on the second lifting track, and the image detection mechanism includes a shooting component, which is used for shooting.

[0066] Technical Solution 11. The riveting and welding device for the photovoltaic module junction box according to Technical Solution 4 further 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 device for the photovoltaic module junction box 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 adjustment member, the adjustment member can adjust the position of the correction cylinder and the correction block according to the size of the photovoltaic module, the adjustment member includes an adjustment rail and an adjustment plate, the position of the adjustment plate on the adjustment rail can be adjusted according to the length of the photovoltaic module, the correction cylinder and the correction block are arranged on the adjustment plate, and a second support plate for supporting the photovoltaic module is provided on the adjustment 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 device for the photovoltaic module junction box described in Technical Solution 12, the adjustment rail, the lifting plate and the lifting cylinder are located below the assembly line, the adjustment rail is provided with a connecting groove, the connecting groove extends along the length direction of the adjustment rail, the adjustment plate is provided with a threaded hole, the threaded hole and the connecting groove are connected by a threaded connector to fix the adjustment plate and the adjustment rail, and the adjustment plate and the adjustment rail are released by adjusting the threaded connector.

[0069] Technical Solution 14: According to the riveting welding device for the photovoltaic module junction box described in Technical Solution 5, an alarm unit is provided on the second rack, the alarm unit is connected to the control unit, the control unit includes a control cabinet, the control cabinet is connected to the second rack, and a control screen and a display screen are provided on the control cabinet. The control screen is used to control and debug the riveting 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 preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic creative concepts. 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 present invention.

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

Claims

1. A riveting device for a photovoltaic module junction box, characterized in that: It includes multiple riveting units and track units. The multiple riveting units are used to correspond one-to-one with the junction boxes of the photovoltaic modules. The riveting units can move along the short side or long side of the photovoltaic modules on the track units. The riveting 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 a photovoltaic module junction box according to claim 1, characterized in that: The track unit includes a long side track, a short side track and a lifting track, the long side track extends along the long side direction of the photovoltaic module, the short side track extends along the short side direction of the photovoltaic module, 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, characterized in that: It also includes a control unit, the riveting unit and the track unit are both connected to the control unit, and the control unit is used to control the track unit, the riveting mechanism and the welding mechanism to operate 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, characterized in that: The riveting mechanism includes 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, 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 loading unit, the loading 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 via the rivet conveying track, the screening area is connected to the waiting area via 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, the residual material recovery unit comprising a recovery pipe and a residual material barrel, the recovery pipe connecting the recovery cylinder and the residual material barrel.

5. The riveting welding device for a photovoltaic module junction box according to claim 3, 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 2, 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, 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, characterized in that: The positioning unit also includes a correction mechanism, and 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 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 correction cylinder and the correction block are arranged on the adjusting plate. The adjusting plate is provided with a second support plate for supporting the photovoltaic component. 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 correction 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, characterized in that: The adjusting rail, the lifting plate and the lifting cylinder are located below the assembly line. A connecting groove is provided on the adjusting rail, and the connecting groove extends along the length direction of the adjusting rail. A threaded hole is provided on the adjusting plate, and the adjusting plate and the adjusting rail are fixedly connected by connecting the threaded hole and the connecting groove through a threaded connector. 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, characterized in that: The second rack is provided with an alarm unit, which is connected to the control unit. The control unit includes a control cabinet, which is connected to the second rack. The control cabinet is provided with a control screen and a display screen. The control screen 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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