Automatic welding machine for junction box

Abstract

The utility model relates to an automatic welding machine for a junction box, and relates to the technical field of junction box welding equipment. The photovoltaic panel laser welding device comprises a rack, a pressing module and a laser welding module, wherein a photovoltaic panel bearing station for placing a photovoltaic panel is arranged on the rack; the visual identification device is installed on the rack, located above the photovoltaic panel bearing station and used for identifying the positions of bus bars and junction boxes on the photovoltaic panels; the pressing module is assembled on the rack in a manner that the positions of the pressing module can be adjusted in the left-right direction and the front-back direction, the pressing module comprises a pressing driving part and a pressing block connected to the driving output end of the pressing driving part, and the pressing driving part is used for driving the pressing block to move towards the junction box so as to press the bus bar on a metal block on the junction box; the laser welding module is assembled on the rack in the left-right direction and the front-back direction in a position adjustable mode, and the laser welding module is used for moving to the junction box and welding the bus bar to a metal block on the junction box when the visual recognition device recognizes the position of the junction box.

Description

Technical Field

[0001] The utility model relates to the technical field of junction box welding equipment, in particular to an automatic junction box welding machine. Background Art

[0002] In the manufacturing process of photovoltaic modules, one of the processes is to assemble the junction box to the busbar on the photovoltaic panel, and then weld the busbar to the metal block on the junction box. This process is usually done manually, but because the area of ​​the photovoltaic panel is generally large and the busbar is located in the middle of the photovoltaic panel, manual welding is difficult and the welding efficiency is low. For mass production, the construction period is long, which affects the later delivery. Utility Model Content

[0003] The utility model provides an automatic junction box welding machine to solve the technical problem of low welding efficiency of manually welding junction boxes on photovoltaic panels in the prior art.

[0004] In order to solve the above problems, the automatic junction box welding machine provided by the utility model adopts the following technical solutions:

[0005] Junction box automatic welding machine, including:

[0006] The rack is defined as a left-right direction for the length direction of the rack and a front-back direction for the width direction. The rack is provided with a photovoltaic panel carrying station for placing the photovoltaic panel;

[0007] A visual recognition device, installed on the rack and located above the photovoltaic panel carrying station, is used to identify the position of the busbar and junction box on the photovoltaic panel;

[0008] A pressing module is mounted on the frame and can be adjusted in the left-right direction and the front-back direction, and is located above the photovoltaic panel carrying station; the pressing module is used to move to the top of the junction box when the visual recognition device recognizes the position of the junction box;

[0009] The pressing module includes a pressing driving member and a pressing block connected to a driving output end of the pressing driving member, wherein the pressing driving member is used to drive the pressing block to move toward the junction box to press the bus bar against a metal block on the junction box;

[0010] The laser welding module is assembled on the frame and its position can be adjusted along the left-right direction and the front-back direction, and is located above the photovoltaic panel supporting station; the laser welding module is used to move to the junction box and weld the bus bar to the metal block on the junction box when the visual recognition device recognizes the position of the junction box.

[0011] The beneficial effects of the above technical solution are: using a pressing drive to drive the pressing block to press on the busbar so that the busbar is pressed against the metal block on the junction box, and using a laser welding module to weld the busbar to the metal block, the automatic welding of the junction box can be realized, and the welding efficiency is higher than that of manual welding. Using laser welding to weld can save welding wire and reduce costs. The laser welding module performs welding according to the position of the junction box identified by the visual recognition device, and the positioning is more accurate, the welding position is more accurate, and wrong welding and leaking welding are avoided. At the same time, the visual recognition device is used to detect the welding effect of the finished product after welding is completed and identify welding waste.

[0012] Furthermore, the pressing block is in the shape of a long strip, extending in the left and right directions, one end of the pressing block is connected to the driving output end of the pressing driving component, and the other end of the pressing block is provided with a pressing head, and the pressing driving component is used to drive the pressing block to move downward so that the pressing head is pressed on the bus bar so that the bus bar presses the metal block on the junction box.

[0013] The beneficial effect of the above technical solution is that the pressing block is in the shape of a long strip, so that there is a certain distance between the pressing head and the driving output end of the pressing driver. In this way, when the pressing block is pressed on the bus bar, there is a certain distance between the pressing driver and the junction box. The pressing driver above the pressing block will not block the junction box in the up and down directions, leaving the welding space above the junction box to avoid affecting the welding process.

[0014] Furthermore, the pressing head includes a first pressing plate and a second pressing plate arranged at intervals in the front-to-back direction, the first pressing plate is used to press on the bus bar located directly above the metal block of the junction box, and the second pressing plate is used to press on the end of the bus bar away from the metal block.

[0015] The beneficial effect of the above technical solution is: a first pressing plate and a second pressing plate are provided to press on both ends of the bent busbar respectively, so as to ensure that the busbar can be pressed tightly so that the busbar can be attached to the metal block on the junction box for easy welding.

[0016] Furthermore, a ventilation block is provided above the second pressing plate, a gas delivery channel is provided in the ventilation block, the air inlet of the delivery channel is connected to a blowing assembly, and the air outlet of the gas delivery channel is located between the first pressing plate and the second pressing plate.

[0017] The beneficial effect of the above technical solution is: using the blowing assembly to blow air into the conveying channel, the gas is blown from the air outlet of the gas delivery channel to the welding area between the first pressure plate and the second pressure plate, which can disperse the smoke generated by welding and avoid affecting the detection results of the visual recognition device. At the same time, it takes away the heat generated in the welding area and allows the welding area to cool down quickly.

[0018] Furthermore, the second pressing plate is inclined from top to bottom toward the first pressing plate, and the gas outlet of the gas transmission channel overlaps with the projection of the plate surface of the second pressing plate in the up and down directions.

[0019] The beneficial effect of the above technical solution is that the second pressing plate is tilted to guide the airflow blown out from the air outlet of the air supply channel to the welding area. At the same time, the second pressing plate can disperse the airflow blown onto the pressing plate to avoid excessive concentration of the airflow, making it easier to disperse the welding smoke.

[0020] Furthermore, the driving output end of the pressing driving member is connected to two pressing blocks arranged at intervals in the front-to-back direction, and the distance between the two pressing blocks is adjustable.

[0021] The beneficial effect of the above technical solution is that: there are two pressing blocks, which can press the two bus bars on the junction box at the same time, and the distance between the two pressing blocks can be adjusted, so that the device can be applied to junction boxes of different specifications and has a wider range of applications.

[0022] Furthermore, the driving output end of the pressing drive component is connected to a mounting plate, to which two connecting blocks arranged at intervals in the front-to-back direction are connected, an oblong hole extending along the front-to-back direction is provided on the connecting block, and a plurality of circular holes arranged at intervals in the front-to-back direction are provided on the mounting plate. The connecting bolts pass through the oblong holes on the connecting block and the circular holes on the mounting plate to connect the connecting block to the mounting plate, and the two pressing blocks are respectively connected to the two connecting blocks.

[0023] The beneficial effect of the above technical solution is that the front and rear positions of the two connecting blocks on the mounting plate are adjustable, so that the distance between the two mounting blocks can be adjusted, and then the distance between the two pressing blocks can also be adjusted. By making the oblong holes on the connecting blocks correspond to different circular holes on the mounting plate, the position of the connecting blocks in the front and rear directions can be adjusted, and the adjustment method is simple.

[0024] Furthermore, the pressing block is slidably assembled on the corresponding connecting block along the up and down directions, and a support plate is connected to the connecting block. The support plate is located above the pressing block, and a compression spring is provided between the pressing block and the support plate. The two ends of the compression spring are respectively pushed on the pressing block and the corresponding support plate.

[0025] The beneficial effect of the above technical solution is that the pressure block can slide in the up and down directions, and a compression spring for pushing the pressure block is provided between the pressure block and the support plate, so that it can be ensured that both pressure blocks can be pressed tightly on the bus bar. Compared with the method of setting the pressure block to be fixed on the connecting block, it can avoid the problem that one of the pressure blocks cannot be pressed on the bus bar when the other pressure block is pressed on the bus bar due to installation error.

[0026] Furthermore, the support plate is equipped with a guide rod that is slidable in the up and down directions, the bottom end of the guide rod is connected to a push plate, the compression spring is sleeved on the guide rod between the push plate and the support plate, the pressing block is connected to a pressure sensor, and the two ends of the compression spring push the support plate and the push plate respectively so that the push plate pushes on the pressure sensor.

[0027] The beneficial effect of the above technical solution is: by setting a pressure sensor, the pressure of the pressure block on the bus bar can be controlled to avoid damage to the product caused by excessive pressure, and to avoid too little pressure causing the bus bar to fail to fully contact with the metal block, affecting the welding effect.

[0028] Furthermore, the rack is provided with a light source assembly, and the light source assembly is used to illuminate the junction box so that the visual recognition device can recognize the junction box.

[0029] The beneficial effect of the above technical solution is: the light source assembly is set to illuminate the junction box, so that the image recognized by the visual recognition device is clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0031] Figure 1 This is a schematic diagram of the structure of the automatic welding machine for junction boxes provided by the utility model;

[0032] Figure 2 This is a structural schematic diagram of a laser welding module in the automatic junction box welding machine provided by the utility model;

[0033] Figure 3 This is a structural schematic diagram of a pressing module in the automatic junction box welding machine provided by the utility model;

[0034] Figure 4 This is a structural schematic diagram of the mounting plate in the automatic welding machine for junction boxes provided by the utility model;

[0035] Figure 5 This is a schematic diagram of the structure of the pressing block and the junction box in the automatic junction box welding machine provided by the utility model;

[0036] Figure 6 A schematic diagram of the structure of the pressing block in the automatic welding machine for the junction box provided by the utility model Figure 1 ;

[0037] Figure 7A schematic diagram of the structure of the pressing block in the automatic welding machine for the junction box provided by the utility model Figure 2 .

[0038] Description of reference numerals:

[0039] 1. Frame; 2. Visual recognition device; 3. Laser welding machine; 4. Welding machine lifting drive mechanism; 5. First transverse beam; 6. Second transverse beam; 7. Protective cover; 8. Press drive member; 9. Mounting plate; 10. Connecting block; 1001. Connecting section; 1002. Mounting section; 11. Slider; 12. Pressing block; 1201. First pressing plate; 1202. Second pressing plate; 1203. Ventilation block; 1204. Air inlet; 1205. Air outlet; 13. Quick connector; 14. Support plate; 15. Guide rod; 16. Compression spring; 17. Push plate; 18. Pressure sensor; 19. Fixing plate; 20. Clamping bolt; 21. Indicator plate; 22. Scale; 23. Light source; 24. Photovoltaic panel; 25. Junction box; 26. Photovoltaic panel conveyor line; 27. Support rod; 28. Slider; 29. ​​Connecting frame. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0041] The following is one embodiment of the automatic welding machine for junction boxes provided by the utility model:

[0042] like Figure 1 As shown, the automatic welding machine for junction boxes includes a frame 1, wherein the length direction of the frame 1 is defined as the left-right direction, and the width direction is defined as the front-back direction. The frame 1 is provided with a first transverse beam 5 extending in the front-back direction, and the first transverse beam 5 is movably installed on the frame 1 in the left-right direction. The specific moving method is that the frame 1 is provided with a transverse rack extending in the left-right direction, the first transverse beam 5 is connected to a first gear and a first driving motor, the first gear is meshed with the transverse rack, and the first driving motor drives the first gear to roll back and forth on the transverse rack, so as to drive the first transverse beam 5 to reciprocate in the left-right direction on the frame 1.

[0043] like Figure 2As shown, a laser welding module is installed on the first transverse moving beam 5, and the laser welding module includes a welding machine lifting drive mechanism 4 and a laser welding machine 3. The welding machine lifting drive mechanism 4 is movably installed on the first transverse moving beam 5 in the front-to-back direction. The specific moving method is that the first transverse moving beam 5 is provided with a first longitudinal rack extending in the front-to-back direction, and the welding machine lifting drive mechanism 4 is connected with a first moving gear and a first motor. The first moving gear is meshed with the first longitudinal rack, and the first motor drives the first moving gear to roll back and forth on the first longitudinal rack, thereby driving the welding machine lifting drive mechanism 4 to reciprocate in the front-to-back direction. The laser welding machine 3 is connected to the lifting output end of the welding machine lifting drive mechanism 4, and the welding machine lifting drive mechanism 4 adopts a telescopic electric cylinder.

[0044] A support rod 27 extending in the front-to-back direction is provided above the first transverse beam 5, and a slider 28 is sleeved on the support rod 27. The slider 28 is connected to the laser welding module through a connecting frame 29, so that when the laser welding module moves back and forth in the front-to-back direction on the first transverse beam 5, the slider 28 is driven to slide back and forth on the support rod 27. The laser welding machine 3 includes an optical fiber harness, which is not shown in the figure. The slider 28 and the connecting frame 29 are both provided with perforations. When in use, the optical fiber harness is tied to the side of the slider 28 and the connecting frame 29 through the perforations with a strapping tape, so that the optical fiber harness can move back and forth with the slider 28, so that the optical fiber harness can be prevented from being entangled or colliding with other parts in the equipment and causing damage due to lack of constraints during the reciprocating movement of the laser welding machine 3 in the front-to-back direction. The laser welding machine 3 is a prior art, which is obtained by commercial purchase, and other specific structures of the laser welding machine 3 are not described in detail here.

[0045] The frame 1 is also provided with a second transverse beam 6 extending in the front-rear direction, and the second transverse beam 6 is movably provided in the left-right direction on the frame 1. The specific moving method is that the second transverse beam 6 is connected with a second gear and a second driving motor, the second gear is meshed with the above-mentioned transverse rack, and the second driving motor drives the second gear to roll back and forth on the transverse rack, so as to drive the second transverse beam 6 to reciprocate in the left-right direction on the frame 1.

[0046] like Figure 3As shown, three groups of pressing modules are installed on the second transverse beam 6, which are arranged at intervals in the front-to-back direction. Each group of pressing modules is movably installed on the second transverse beam 6 in the front-to-back direction. Each group of pressing modules includes a pressing drive member 8, which is movably installed on the second transverse beam 6 in the front-to-back direction. The specific moving method is that the second transverse beam 6 is provided with a second longitudinal rack extending in the front-to-back direction, and the pressing drive member 8 is connected with a second moving gear and a second motor. The second moving gear is meshed with the second longitudinal rack, and the second motor drives the second moving gear to reciprocate on the second longitudinal rack, thereby driving the pressing drive member 8 to reciprocate in the front-to-back direction. The pressing drive member 8 adopts a telescopic electric cylinder, and the driving output end of the pressing drive member 8 is connected with a mounting plate 9.

[0047] like Figure 4 As shown, two connecting blocks 10 are connected to the mounting plate 9, and each connecting block 10 includes a connecting section 1001 and a mounting section 1002 which are perpendicular to each other. An oblong hole extending in the front-to-back direction is provided on the connecting section 1001, and a plurality of circular holes arranged at intervals in the front-to-back direction are provided on the mounting plate 9. The connecting bolts pass through the oblong holes and the corresponding circular holes to connect the connecting section 1001 to the mounting plate 9. By making the oblong holes correspond to different circular holes, the installation position of the connecting block 10 in the front-to-back direction can be adjusted, thereby making the spacing between the two connecting blocks 10 adjustable. A fixing plate 19 is connected to each of the front and rear ends of the mounting plate 9, and a clamping bolt 20 is connected to the fixing plate 19. The clamping bolt 20 is clamped on the connecting section 1001 to fix the connecting block 10. A scale 22 is provided on the mounting plate 9 , and an indicator plate 21 is connected to the connecting sections 1001 in the two connecting blocks 10 . The indicator plate 21 has an indicator tip, which points to the scale line on the scale 22 , so that the distance between the two connecting blocks 10 can be adjusted according to the scale 22 .

[0048] The mounting section 1002 is provided with a slide rail extending in the up-down direction, on which a slider 11 is slidably mounted, and the bottom end of the slider 11 is connected to a long strip-shaped pressing block 12 extending in the left-right direction, and the surface of the pressing block 12 is plated with a layer of Teflon coating. The Teflon material has a low thermal conductivity and poor thermal conductivity, so that the pressing block 12 can withstand high temperatures and is more suitable for use in high-temperature welding environments. The pressing block 12 has a pressing head, such as Figure 5 As shown, the pressing head includes a first pressing plate 1201 and a second pressing plate 1202 arranged at intervals in the front-to-back direction. The second pressing plate 1202 is inclined from top to bottom toward the first pressing plate 1201. The first pressing plate 1201 is used to be pressed on the bus bar located directly above the metal block of the junction box 25, and the second pressing plate 1202 is used to be pressed on the end of the bus bar away from the metal block. The space between the first pressing plate 1201 and the second pressing plate 1202 is a laser welding area.

[0049] like Figure 6 and Figure 7 As shown, a ventilation block 1203 is provided above the second pressing plate 1202, and a gas delivery channel is opened on the ventilation block 1203. The gas delivery channel has an air outlet 1205 and an air inlet 1204. The air outlet 1205 is arranged from top to bottom facing the second pressing plate 1202, and the air inlet 1204 is connected to a blowing assembly through a quick connector 13. The blowing assembly is used to blow air into the gas delivery channel through the quick connector 13. The blowing assembly can adopt structures such as an air pump and a fan. It is a prior art and will not be described in detail here.

[0050] The top of the slider 11 is provided with a pressure sensor 18, and the top of the mounting section 1002 is connected with a support plate 14, which is located above the slider 11. A linear bearing is embedded in the support plate 14, and a guide rod 15 is inserted into the linear bearing. A push plate 17 is connected to the bottom end of the guide rod 15, and a compression spring 16 is sleeved on the guide rod 15, and the compression spring 16 is located between the support plate 14 and the push plate 17, and the two ends of the compression spring 16 push the support plate 14 and the push plate 17 respectively, so that the push plate 17 is pressed against the pressure sensor 18.

[0051] A protective cover 7 is installed on the above-mentioned mounting plate 9, and the protective cover 7 covers the connecting block 10, slider 11, support plate 14, compression spring 16 and other structures installed on the mounting plate 9 to prevent the welding slag from splashing during welding and causing damage to the above-mentioned structures, and at the same time prevent the welding slag from getting stuck and affecting the pressing action of the pressing module.

[0052] The bottom of the rack 1 is provided with a photovoltaic panel conveyor line 26 for conveying in the front-to-back direction. The photovoltaic panel conveyor line 26 is used to convey the photovoltaic panel 24 with the junction box 25 installed to the welding station on the rack 1. The top of the rack 1 is provided with a visual recognition device 2, which includes three visual recognition cameras arranged at intervals in the front-to-back direction, and the three visual recognition cameras are respectively facing the three junction boxes 25 on the photovoltaic panel 24. The visual recognition camera is used to identify and determine the position of the junction box 25, so that the laser welding module and the pressing module can be moved to the correct position to weld the junction box 25. The rack 1 is also provided with a light source assembly, which includes three groups of light sources 23 arranged at intervals in the front-to-back direction. The positions of the three groups of light sources 23 correspond to the positions of the three junction boxes 25 on the photovoltaic panel 24 one by one. The light source 23 is used to illuminate the corresponding junction box 25, so that the image recognized by the visual recognition camera is clearer and the recognition result is more accurate.

[0053] When the utility model is in use, the photovoltaic panel conveyor line 26 first conveys the photovoltaic panel 24 installed with the junction box 25 to the welding station on the frame 1, the visual recognition device 2 identifies the position of the junction box 25 and the bus bar on the photovoltaic panel 24, each pressing module moves to the corresponding junction box 25, and the pressing drive member 8 drives the pressing block 12 to move downward, and the pressing block 12 presses the bus bar on the metal block on the junction box 25, and then the blowing component is turned on, and the air outlet 1205 starts to blow toward the area between the first pressing plate 1201 and the second pressing plate 1202, and then the laser welding module moves to each junction box 25 in turn to weld the metal block and the bus bar on the junction box 25, and the gas blown out by the blowing component blows away the smoke generated by welding and quickly cools the welding area. After welding is completed, the visual recognition device 2 identifies and detects the welding position to determine that welding is completed, and then the photovoltaic panel conveyor line 26 outputs the welded photovoltaic panel 24 to the next station.

[0054] The utility model can realize automatic welding of the junction box by arranging the pressing module and the laser welding module, and the welding efficiency is higher. The use of laser welding can save welding wire and effectively reduce welding costs.

[0055] In this embodiment, the distance between the two pressing blocks is adjustable, so that the welding machine can be suitable for welding different types of junction boxes. In other embodiments, the distance between the two pressing blocks cannot be adjusted. At this time, the positions of the two pressing blocks are relatively fixed, and the welding machine can only be used to weld the same type of junction boxes.

[0056] In this embodiment, the pressing component adopts a telescopic electric cylinder. In other embodiments, the pressing component may adopt a driving structure capable of realizing linear movement, such as a cylinder or a nut-screw linear module.

[0057] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and other terms indicating orientation or position relationship are based on the orientation or position relationship shown in the drawings of this specification, which are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0058] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. Junction box automatic welding machine, characterized in that, include: The rack is defined as a left-right direction for the length direction of the rack and a front-back direction for the width direction. The rack is provided with a photovoltaic panel carrying station for placing the photovoltaic panel; A visual recognition device, installed on the rack and located above the photovoltaic panel carrying station, is used to identify the position of the busbar and junction box on the photovoltaic panel; A pressing module is mounted on the frame and can be adjusted in the left-right direction and the front-back direction, and is located above the photovoltaic panel carrying station; the pressing module is used to move to the top of the junction box when the visual recognition device recognizes the position of the junction box; The pressing module includes a pressing driving member and a pressing block connected to a driving output end of the pressing driving member, wherein the pressing driving member is used to drive the pressing block to move toward the junction box to press the bus bar against a metal block on the junction box; The laser welding module is assembled on the frame and its position can be adjusted along the left-right direction and the front-back direction, and is located above the photovoltaic panel supporting station; the laser welding module is used to move to the junction box and weld the bus bar to the metal block on the junction box when the visual recognition device recognizes the position of the junction box.

2. The automatic junction box welding machine according to claim 1, characterized in that: The pressing block is in the shape of an elongated strip and extends in the left-right direction. One end of the pressing block is connected to the driving output end of the pressing driving component, and a pressing head is provided at the other end of the pressing block. The pressing driving component is used to drive the pressing block to move downward so that the pressing head is pressed on the bus bar so that the bus bar presses the metal block on the junction box.

3. The automatic junction box welding machine according to claim 2, characterized in that: The pressing head includes a first pressing plate and a second pressing plate arranged at intervals in the front-to-back direction, the first pressing plate is used to press on the bus bar located directly above the metal block of the junction box, and the second pressing plate is used to press on one end of the bus bar away from the metal block.

4. The automatic junction box welding machine according to claim 3, characterized in that: A ventilation block is provided above the second pressing plate, an air delivery channel is provided in the ventilation block, an air inlet of the delivery channel is connected to an air blowing assembly, and an air outlet of the air delivery channel is located between the first pressing plate and the second pressing plate.

5. The automatic junction box welding machine according to claim 4, characterized in that: The second pressing plate is inclined from top to bottom toward the first pressing plate, and the gas outlet of the gas delivery channel overlaps with the projection of the plate surface of the second pressing plate in the up and down directions.

6. The automatic junction box welding machine according to any one of claims 1 to 5, characterized in that: The driving output end of the pressing driving member is connected to two pressing blocks arranged at intervals in the front-to-back direction, and the distance between the two pressing blocks is adjustable.

7. The automatic junction box welding machine according to claim 6, characterized in that: The driving output end of the pressing drive member is connected to a mounting plate, and two connecting blocks arranged at intervals in the front-to-back direction are connected to the mounting plate. An oblong hole extending along the front-to-back direction is provided on the connecting block, and a plurality of circular holes arranged at intervals in the front-to-back direction are provided on the mounting plate. The connecting bolts pass through the oblong holes on the connecting block and the circular holes on the mounting plate to connect the connecting block to the mounting plate, and the two pressing blocks are respectively connected to the two connecting blocks.

8. The automatic junction box welding machine according to claim 7, characterized in that: The pressing block is slidably assembled on the corresponding connecting block along the up and down directions. The connecting block is connected with a supporting plate, and the supporting plate is located above the pressing block. A compression spring is provided between the pressing block and the supporting plate, and the two ends of the compression spring are respectively pushed on the pressing block and the corresponding supporting plate.

9. The automatic junction box welding machine according to claim 8, characterized in that: The support plate is equipped with a guide rod that slides in the up and down directions, and the bottom end of the guide rod is connected to a push plate. The compression spring is sleeved on the guide rod between the push plate and the support plate, and a pressure sensor is connected to the pressing block. The two ends of the compression spring push the support plate and the push plate respectively, so that the push plate pushes on the pressure sensor.

10. The automatic junction box welding machine according to any one of claims 1 to 5, characterized in that: The rack is provided with a light source assembly, which is used to illuminate the junction box so that the visual recognition device can recognize the junction box.

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