Photovoltaic device welding apparatus

Abstract

The application relates to the technical field of welding processing, and discloses a photovoltaic device welding device which can accurately solve the problems of poor welding positioning of a photovoltaic panel frame and welding defects caused by deformation, can comprehensively control the state of a panel before welding through a detection mechanism, can judge the height consistency of a panel welding position through a pressure sensor combined with a pressure spring through a pressure value, can detect the parallelism of a welding position through an angle sensor cooperating with a detection rotating plate, and can also assist in controlling a welding gap through a telescopic air bag to avoid hidden troubles such as virtual welding and path deviation from the source; a driving mechanism can flexibly adjust the posture of the panel, a vacuum pump table fixes the panel, a rolling track drives the panel to move to adjust the gap, the first and second telescopic rods can cooperatively adjust the height and parallelism of the panel, and a limiting tension spring can also prevent components from being stuck during adjustment, so that the welding position is accurate.

Description

Technical Field

[0001] This invention relates to the field of welding processing technology, specifically to a welding device for photovoltaic equipment. Background Technology

[0002] As a core structural component of photovoltaic modules, the frame of a photovoltaic panel plays a crucial role in support, protection, and installation adaptation. It can stably fix the core laminates such as photovoltaic glass, cells, and backsheet, preventing deformation or interlayer delamination of the module due to external forces during transportation, installation, and outdoor operation. This ensures the structural integrity of the module and guarantees that the photovoltaic panel remains stable and meets the optimal tilt angle requirements in different scenarios such as rooftops and ground surfaces, thereby improving power generation efficiency. At the same time, the rounded corners of the frame can also reduce the risk of safety bumps and knocks during installation and maintenance.

[0003] However, unexpected deformation may occur before welding the photovoltaic panel frame. From the production perspective, the frame is mostly made of aluminum alloy extrusion molding. If the extrusion process parameters, such as temperature, pressure, and cooling rate, are unstable, or if the force is uneven during subsequent cutting and punching, the frame may experience slight linear bending or local warping. From the transportation and storage perspective, if the frame is stacked too high, causing local overload, or if it encounters bumps or collisions during transportation, the frame may also deform due to external impact. This deformation will destroy the tight interface bonding conditions required for welding, resulting in uneven weld gaps, which can easily lead to problems such as incomplete welding and lack of fusion. It may also cause the welding path to deviate, accidentally touching the functional area of ​​the panel and causing a short circuit hazard. At the same time, uneven welds will retain initial internal stress, which can easily cause weld cracks and fractures under the influence of outdoor temperature changes and other factors. Furthermore, it is impossible to form a continuous sealing surface, which will damage the equipment's IP protection level and allow moisture and impurities to enter and corrode the components, ultimately affecting the welding quality and long-term reliability of the equipment. To address this, we propose a photovoltaic equipment welding device. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a photovoltaic equipment welding device with advantages such as accurate positioning, solving a series of problems such as poor welding positioning in existing equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic equipment welding device, comprising,

[0006] A welding machine includes a first workbench and a second workbench placed on the ground. A top plate is fixedly connected to the top of the first workbench and the second workbench. Welding rails, inspection rails and working rails are provided on both sides of the inner wall of the top plate. The welding rails, inspection rails and working rails on the same side of the inner wall of the top plate are connected. A welding head is slidably connected inside the top plate. The welding head slides inside the top plate following the sliding trajectory of the welding rails and working rails.

[0007] A drive mechanism is fixedly installed on the top of the second workbench. The drive mechanism includes a vacuum pump platform that is slidably connected inside the second workbench, and a rolling track is rotatably sleeved on the outside of the vacuum pump platform.

[0008] The detection mechanism includes a detection rod slidably connected inside the detection track and the working track. A detection shell is fixedly connected to the outside of the detection rod. Pressure sensors are fixedly connected to both sides of the detection shell. A plate is fixedly connected to the detection end of the pressure sensor. Angle sensors are also fixedly installed on both sides of the detection shell. A detection rotating plate is fixedly connected to the output end of each angle sensor.

[0009] Preferably, a welding rod is slidably connected inside the welding track and the working track, a welding shell is fixedly connected to the outside of the welding rod, a threaded rod is rotatably connected inside the welding shell, a welding motor is fixedly installed on one side of the welding shell, the output end of the welding motor is fixedly connected to one side of the threaded rod, a nut slider is slidably sleeved on the outside of the welding rod, the nut slider is threaded onto the outside of the threaded rod, and the welding head is fixedly installed at the bottom of the nut slider.

[0010] Preferably, the drive mechanism further includes a drive frame fixedly connected to the outside of the vacuum pump platform. Two rollers are rotatably connected inside the drive frame. The rolling track is rotatably sleeved on the outside of the two rollers. A rolling motor is fixedly installed on one side of the drive frame. The output end of the rolling motor is fixedly connected to one end of the adjacent roller.

[0011] Preferably, two first telescopic rods are fixedly installed on the bottom of the inner wall of the second workbench, and the tops of the two first telescopic rods are rotatably connected to both sides of the drive frame, respectively. Two sliding sleeves are fixedly connected to the top of the second workbench, and second telescopic rods are slidably installed inside the sliding sleeves. A limit spring is fixedly connected inside the sliding sleeves, and one end of the limit spring is fixedly connected to one side of the adjacent second telescopic rod. The tops of the two second telescopic rods are rotatably connected to both sides of the drive frame, respectively.

[0012] Preferably, the detection mechanism further includes a telescopic airbag fixedly connected inside the detection shell. An air pump is fixedly installed on one side of the detection shell, and the output end of the air pump is connected to one side of the telescopic airbag. A fixing plate is fixedly connected inside the telescopic airbag, and fixing springs are fixedly connected to both sides of the fixing plate. One end of each fixing spring is fixedly connected to the inner wall of the telescopic airbag.

[0013] Preferably, a first positioning plate is fixedly connected to both sides of the telescopic airbag, and the two angle sensors are fixedly connected to one side of the adjacent first positioning plate. A detection rotating rod is fixedly connected inside the detection rotating plate, and one end of the detection rotating rod is fixedly connected to the output end of the adjacent angle sensor.

[0014] Preferably, two second positioning plates are fixedly connected inside the detection shell, and two pressure sensors are fixedly connected to the bottom of adjacent second positioning plates. A pressure spring is fixedly connected to the detection end of each pressure sensor, and the top of each of the two plates is fixedly connected to the bottom of adjacent pressure springs.

[0015] Preferably, a welding cylinder and a detection cylinder are fixedly installed on the top of the top plate. A sliding block is fixedly connected to the output end of both the welding cylinder and the detection cylinder. A sliding ring is slidably sleeved on the outside of both the welding rod and the detection rod. A sliding groove is opened on the top of the sliding ring. Two sliding blocks are slidably connected inside adjacent sliding grooves. A sliding spring is fixedly connected to one side of each sliding block. One end of the sliding spring is fixedly connected to the inside of an adjacent sliding ring.

[0016] Compared with the prior art, the present invention provides a photovoltaic equipment welding device, which has the following beneficial effects:

[0017] 1. This invention allows the testing mechanism to accurately control the condition of the photovoltaic panel before welding. The pressure sensor combined with the pressure spring can determine whether the height of the panel at the welding point is consistent through the pressure value. The angle sensor, together with the detection rotating plate, can detect the parallelism of the panel at the welding point. At the same time, the telescopic airbag can help control the welding gap, thus avoiding welding defects caused by panel condition problems from the source.

[0018] 2. This invention allows for flexible adjustment of the plate's position and orientation via a drive mechanism. After the vacuum pump platform fixes the plate, the rolling track drives the plate to move and adjust the gap. The coordinated action of the first and second telescopic rods can adjust the plate's height and parallelism, and the limiting spring can prevent components from jamming during adjustment, ensuring precise welding positions.

[0019] 3. This invention features a flexible welding mechanism with a comprehensive welding range. The welding cylinder drives the welding rod to slide along the track, and the welding motor drives the threaded rod to move the nut slider and the welding head, thus achieving complete welding of the photovoltaic panel, improving welding efficiency and quality, and ensuring the long-term reliability of photovoltaic equipment. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 for Figure 1 A magnified structural diagram of part A;

[0022] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part B;

[0023] Figure 4 This is a three-dimensional structural diagram of the sliding groove portion of the present invention;

[0024] Figure 5 for Figure 2 A magnified structural diagram of section C;

[0025] Figure 6 This is a three-dimensional structural diagram of the telescopic airbag portion of the present invention;

[0026] Figure 7 This is a three-dimensional structural diagram of the drive frame portion of the present invention.

[0027] In the diagram: 1. Welding machine; 2. First workbench; 3. Second workbench; 4. Top plate; 5. Drive mechanism; 6. Detection mechanism; 7. Welding track; 8. Detection track; 9. Working track; 10. Welding cylinder; 11. Detection cylinder; 12. Welding rod; 13. Welding shell; 14. Welding motor; 15. Threaded rod; 16. Nut slider; 17. Welding head; 18. Sliding block; 19. Sliding ring; 20. Sliding groove; 21. Sliding spring; 22. Detection rod; 23. Detection shell; 24. 25. Air pump; 26. Fixed plate; 27. Telescopic airbag; 28. Fixed spring; 29. ​​First positioning plate; 30. Angle sensor; 31. Detection rotating rod; 32. Detection rotating plate; 33. Return spring; 34. Second positioning plate; 35. Pressure sensor; 36. Pressure spring; 37. Adhesive plate; 38. First telescopic rod; 39. Sliding sleeve; 40. Second telescopic rod; 41. Limiting tension spring; 42. Drive frame; 43. Vacuum pump platform; 44. Roller; 45. Rolling motor; 46. Rolling track. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a photovoltaic equipment welding device.

[0030] In one typical implementation of this application, such as Figure 1-7 As shown, a photovoltaic equipment welding device includes,

[0031] Welding machine 1 includes a first workbench 2 and a second workbench 3 placed on the ground. A top plate 4 is fixedly connected to the top of the first workbench 2 and the second workbench 3. Welding rails 7, inspection rails 8 and working rails 9 are provided on both sides of the inner wall of the top plate 4. The welding rails 7, inspection rails 8 and working rails 9 on the same side of the inner wall of the top plate 4 are connected. A welding head 17 is slidably connected inside the top plate 4. The welding head 17 slides inside the top plate 4 following the sliding trajectory of the welding rails 7 and the working rails 9.

[0032] Welding rod 12 is slidably connected inside welding rail 7 and working rail 9. Welding shell 13 is fixedly connected to the outside of welding rod 12. Threaded rod 15 is rotatably connected inside welding shell 13. Welding motor 14 is fixedly installed on one side of welding shell 13. The output end of welding motor 14 is fixedly connected to one side of threaded rod 15. Nut slider 16 is slidably sleeved on the outside of welding rod 12. Nut slider 16 is threadedly screwed onto the outside of threaded rod 15. Welding head 17 is fixedly installed at the bottom of nut slider 16.

[0033] With the above-described structure, flat photovoltaic panels can be welded. Specifically, when welding photovoltaic panels is required, the photovoltaic panels are placed on top of the first workbench 2 and the second workbench 3. The welding cylinder 10 is then activated. The telescopic end of the welding cylinder 10 moves the sliding ring 19 connected to it. The movement of the sliding ring 19 causes the welding rod 12 to slide inside the welding track 7. The sliding spring 21 is stretched. At this time, the welding rod 12 slides into the working track 9 through the welding track 7, and the welding head 17 is activated to weld the flat photovoltaic panels. Simultaneously, the welding motor 14 is activated during the welding process. The output end of the welding motor 14 rotates, causing the threaded rod 15 to rotate. The rotation of the threaded rod 15 causes the nut slider 16 to slide outside the welding rod 12, thereby completing the welding of the flat photovoltaic panels.

[0034] After welding is completed, the welding head 17 is closed and the welding cylinder 10 is started in reverse. The welding cylinder 10 drives the sliding ring 19 on it to move and drives the welding rod 12 back to its original position for easy use next time.

[0035] The detection mechanism 6 includes a detection rod 22 that is slidably connected inside the detection track 8 and the working track 9. A detection shell 23 is fixedly connected to the outside of the detection rod 22. Pressure sensors 34 are fixedly connected to both sides of the detection shell 23. A plate 36 is fixedly connected to the detection end of the pressure sensor 34. Angle sensors 29 are also fixedly installed on both sides of the detection shell 23. A detection rotating plate 31 is fixedly connected to the output end of the angle sensor 29.

[0036] The testing mechanism 6 also includes a telescopic airbag 26 fixedly connected inside the testing shell 23. An air pump 24 is fixedly installed on one side of the testing shell 23. The output end of the air pump 24 is connected to one side of the telescopic airbag 26. A fixing plate 25 is fixedly connected inside the telescopic airbag 26. Fixing springs 27 are fixedly connected on both sides of the fixing plate 25. One end of each fixing spring 27 is fixedly connected to the inner wall of the telescopic airbag 26.

[0037] Both sides of the telescopic airbag 26 are fixedly connected to the first positioning plate 28. Two angle sensors 29 are fixedly connected to one side of the adjacent first positioning plate 28. The inside of the detection rotating plate 31 is fixedly connected to the detection rotating rod 30. One end of the detection rotating rod 30 is fixedly connected to the output end of the adjacent angle sensor 29. The inside of the detection shell 23 is fixedly connected to two second positioning plates 33. Two pressure sensors 34 are fixedly connected to the bottom of the adjacent second positioning plates 33. The detection end of the pressure sensor 34 is fixedly connected to the pressure spring 35. The top of the two plates 36 is fixedly connected to the bottom of the adjacent pressure spring 35.

[0038] A welding cylinder 10 and a detection cylinder 11 are fixedly installed on the top of the top plate 4. Sliding blocks 18 are fixedly connected to the output ends of both the welding cylinder 10 and the detection cylinder 11. Sliding rings 19 are slidably sleeved on the outside of the welding rod 12 and the detection rod 22. A sliding groove 20 is opened on the top of the sliding ring 19. Two sliding blocks 18 are slidably connected inside the adjacent sliding grooves 20. A sliding spring 21 is fixedly connected to one side of the sliding block 18. One end of the sliding spring 21 is fixedly connected to the inside of the adjacent sliding ring 19.

[0039] Furthermore, in the above scheme, the above structure can be used to detect the weld joint of two flat photovoltaic panels. Specifically, when the two flat photovoltaic panels are placed in the welding position, the detection cylinder 11 is activated. The extension end of the detection cylinder 11 drives the sliding ring 19 on it to move. The movement of the sliding ring 19 drives the detection rod 22 to slide inside the detection track 8. At the same time, the detection rod 22 slides inside the sliding ring 19, and the sliding spring 21 on it is stretched. The detection cylinder 11 drives the detection rod 22 to slide into the working track 9. At this time, the top of the two flat photovoltaic panels abuts against the bottom of the adjacent plate 36, the pressure spring 35 is compressed, and the two pressure sensors 34 obtain the pressure value. The pressure value can be used to determine whether the height of the weld joint of the two flat photovoltaic panels is consistent.

[0040] At the same time, the air pump 24 is activated to pump air into the telescopic airbag 26, the fixing spring 27 extends, and the two detection rotating plates 31 respectively abut against the welding points of the adjacent flat photovoltaic panels. This controls the welding gap between the two flat photovoltaic panels. Simultaneously, as the two detection rotating plates 31 abut against the welding points of the adjacent flat photovoltaic panels, the detection rotating plates 31 rotate. The rotation of the detection rotating plates 31 drives the detection rotating rod 30 to rotate, which in turn drives the output end of the angle sensor 29 to rotate. This allows it to be determined whether the welding points of the two flat photovoltaic panels are in a parallel state, ensuring the welding effect.

[0041] The drive mechanism 5 is fixedly installed on the top of the second workbench 3. The drive mechanism 5 includes a vacuum pump platform 42 that is slidably connected inside the second workbench 3. A rolling track 45 is rotatably sleeved on the outside of the vacuum pump platform 42. The drive mechanism 5 also includes a drive frame 41 that is fixedly connected to the outside of the vacuum pump platform 42. Two rollers 43 are rotatably connected inside the drive frame 41. The rolling track 45 is rotatably sleeved on the outside of the two rollers 43. A rolling motor 44 is fixedly installed on one side of the drive frame 41. The output end of the rolling motor 44 is fixedly connected to one end of the adjacent roller 43.

[0042] Two first telescopic rods 37 are fixedly installed on the bottom of the inner wall of the second workbench 3. The tops of the two first telescopic rods 37 are rotatably connected to both sides of the drive frame 41. Two sliding sleeves 38 are fixedly connected to the top of the second workbench 3. Second telescopic rods 39 are slidably installed inside the sliding sleeves 38. A limiting spring 40 is fixedly connected inside the sliding sleeves 38. One end of the limiting spring 40 is fixedly connected to one side of the adjacent second telescopic rod 39. The tops of the two second telescopic rods 39 are rotatably connected to both sides of the drive frame 41.

[0043] With the above-mentioned structure, the flat photovoltaic panels on the second workbench 3 can be driven to adjust their angle and height, making them easier to weld and further improving the welding effect. Specifically, before using the inspection mechanism 6 to inspect the two flat photovoltaic panels, the vacuum pump platform 42 is started first to fix the flat photovoltaic panels to be adjusted on the second workbench 3. At this time, the inspection mechanism 6 can be started to inspect. During the inspection process, when it is necessary to adjust the gap between the two flat photovoltaic panels, the rolling motor 44 is started. The output end of the rolling motor 44 drives the roller 43 to rotate. The rotation of the roller 43 drives the rolling track 45 to slide outside the vacuum pump platform 42 and drive the photovoltaic panels on it to move, thereby adjusting the gap. When the height of the weld joint of the two photovoltaic panels is inconsistent, the two first telescopic rods 37 and the two second telescopic rods 39 can be started to drive the drive frame 41 to move upward, thereby adjusting the weld joint of the two photovoltaic panels to a uniform height.

[0044] When the two angle sensors 29 detect unevenness at the weld joint of the two photovoltaic panels, the two first telescopic rods 37 and the second telescopic rod 39 are asynchronously activated to adjust the parallelism of the weld joint of the two photovoltaic panels. During the rotation of the drive frame 41, the second telescopic rod 39 slides inside the sliding sleeve 38, and the limiting spring 40 is stretched to prevent the first telescopic rod 37 and the second telescopic rod 39 from getting stuck when the drive frame 41 rotates.

[0045] The working principle of this invention is as follows: When it is necessary to weld photovoltaic panels, the photovoltaic panels are placed on top of the first workbench 2 and the second workbench 3. At this time, the welding cylinder 10 is activated. The telescopic end of the welding cylinder 10 drives the sliding ring 19 connected to it to move. The movement of the sliding ring 19 causes the welding rod 12 to slide inside the welding track 7. The sliding spring 21 is stretched. At this time, the welding rod 12 slides into the working track 9 through the welding track 7, and the welding head 17 is activated to weld the flat photovoltaic panel. At the same time, the welding motor 14 is activated during the welding process. The output end of the welding motor 14 rotates, which drives the threaded rod 15 to rotate. The rotation of the threaded rod 15 drives the nut slider 16 to slide outside the welding rod 12, thereby completing the welding of the flat photovoltaic panel. After the welding is completed, the welding head 17 is closed and the welding cylinder 10 is activated in reverse. The welding cylinder 10 drives the sliding ring 19 on it to move and drives the welding rod 12 back to its original position for the next use.

[0046] When two flat photovoltaic panels are placed in the welding position, the detection cylinder 11 is activated. The extension end of the detection cylinder 11 drives the sliding ring 19 on it to move. The movement of the sliding ring 19 causes the detection rod 22 to slide inside the detection track 8. At the same time, the detection rod 22 slides inside the sliding ring 19, and the sliding spring 21 on it is stretched. Through the detection cylinder 11, the detection rod 22 is driven into the working track 9. At this time, the top of the two flat photovoltaic panels abuts against the bottom of the adjacent plate 36, the pressure spring 35 is compressed, and the two pressure sensors 34 obtain the pressure value. The pressure value can be used to determine whether the height of the welding point of the two flat photovoltaic panels is consistent.

[0047] At the same time, the air pump 24 is activated to pump air into the telescopic airbag 26, the fixing spring 27 extends, and the two detection rotating plates 31 respectively abut against the welding points of the adjacent flat photovoltaic panels. This controls the welding gap between the two flat photovoltaic panels. Meanwhile, as the two detection rotating plates 31 abut against the welding points of the adjacent flat photovoltaic panels, the detection rotating plates 31 rotate. The rotation of the detection rotating plates 31 drives the detection rotating rod 30 to rotate, which in turn drives the output end of the angle sensor 29 to rotate. This allows us to know whether the welding points of the two flat photovoltaic panels are in a parallel state, ensuring the welding effect.

[0048] Before using the testing mechanism 6 to test the two flat photovoltaic panels, the vacuum pump platform 42 is started to fix the flat photovoltaic panels to be adjusted on the second workbench 3. At this time, the testing mechanism 6 can be started to test. During the testing process, when it is necessary to adjust the gap between the two flat photovoltaic panels, the rolling motor 44 is started. The output end of the rolling motor 44 drives the roller 43 to rotate. The rotation of the roller 43 drives the rolling track 45 to slide outside the vacuum pump platform 42 and move the photovoltaic panels on it, thereby adjusting the gap. When the height of the weld joint of the two photovoltaic panels is inconsistent, the two first telescopic rods 37 and the two second telescopic rods 39 can be started to drive the drive frame 41 to move upward, thereby adjusting the weld joint of the two photovoltaic panels to a uniform height.

[0049] When the two angle sensors 29 detect unevenness at the weld joint of the two photovoltaic panels, the two first telescopic rods 37 and the second telescopic rod 39 are asynchronously activated to adjust the parallelism of the weld joint of the two photovoltaic panels. During the rotation of the drive frame 41, the second telescopic rod 39 slides inside the sliding sleeve 38, and the limiting spring 40 is stretched to prevent the first telescopic rod 37 and the second telescopic rod 39 from getting stuck when the drive frame 41 rotates.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic device welding apparatus, characterized by: Including, The welding machine includes a first workbench and a second workbench placed on the ground, the top of the first workbench and the second workbench is fixedly connected with a top plate, the inner wall of the top plate is provided with welding tracks, detection tracks and working tracks on both sides, the welding tracks, the detection tracks and the working tracks on the same side of the inner wall of the top plate are communicated, a welding head is slidably connected in the top plate, and the welding head slides in the top plate along the sliding tracks of the welding tracks and the working tracks; A driving mechanism is fixedly installed on the top of the second workbench, the driving mechanism includes a vacuum pump table slidably connected in the second workbench, and a rolling crawler is rotatably sleeved on the outer portion of the vacuum pump table; A detection mechanism includes a detection rod slidably connected in the detection tracks and the working tracks, a detection shell is fixedly connected to the outer portion of the detection rod, pressure sensors are fixedly connected to both sides of the detection shell, a sticking plate is fixedly connected to the detection end of the pressure sensor, angle sensors are fixedly installed on both sides of the detection shell, and detection rotating plates are fixedly connected to the output ends of the angle sensors; A welding rod is slidably connected in the welding tracks and the working tracks, a welding shell is fixedly connected to the outer portion of the welding rod, a threaded rod is rotatably connected in the welding shell, a welding motor is fixedly installed on one side of the welding shell, the output end of the welding motor is fixedly connected to one side of the threaded rod, a nut block is slidably sleeved on the outer portion of the welding rod, and the nut block is threadedly screwed on the outer portion of the threaded rod; The driving mechanism further includes a driving frame fixedly connected to the outer portion of the vacuum pump table, two rollers are rotatably connected in the inner portion of the driving frame, the rolling crawler is rotatably sleeved on the outer portion of the two rollers, a rolling motor is fixedly installed on one side of the driving frame, and the output end of the rolling motor is fixedly connected to one end of the adjacent roller; Two first telescopic rods are fixedly installed on the inner wall bottom of the second workbench, the tops of the two first telescopic rods are rotatably connected to the two sides of the driving frame, two sliding sleeves are fixedly connected to the top of the second workbench, second telescopic rods are slidably installed in the inner portion of the sliding sleeves, limit tension springs are fixedly connected to the inner portion of the sliding sleeves, one end of the limit tension spring is fixedly connected to one side of the adjacent second telescopic rod, and the tops of the two second telescopic rods are rotatably connected to the two sides of the driving frame; A welding cylinder and a detection cylinder are fixedly installed on the top of the top plate, sliding blocks are fixedly connected to the output ends of the welding cylinder and the detection cylinder, sliding rings are slidably sleeved on the outer portions of the welding rod and the detection rod, sliding grooves are formed in the top portions of the sliding rings, the two sliding blocks are slidably connected in the inner portions of the adjacent sliding grooves, sliding springs are fixedly connected to one side of the sliding blocks, and one end of the sliding spring is fixedly connected to the inner portion of the adjacent sliding ring.

2. A photovoltaic device welding apparatus as defined in claim 1, wherein: The detection mechanism further comprises a telescopic air bag fixedly connected inside the detection shell, one side of the detection shell is fixedly provided with an air pump, an output end of the air pump is in communication with one side of the telescopic air bag, the inside of the telescopic air bag is fixedly connected with a fixed plate, both sides of the fixed plate are fixedly connected with fixed springs, one end of each fixed spring is fixedly connected with the inner wall of the telescopic air bag.

3. A photovoltaic device welding apparatus as defined in claim 2, wherein: Both sides of the telescopic air bag are fixedly connected with first positioning plates, both angle sensors are fixedly connected on one side of the proximal first positioning plate, the inside of the detection rotating plate is fixedly connected with a detection rotating rod, one end of the detection rotating rod is fixedly connected with the output end of the proximal angle sensor.

4. A photovoltaic device welding apparatus as defined in claim 3, wherein: The inside of the detection shell is fixedly connected with two second positioning plates, both pressure sensors are fixedly connected on the bottom of the proximal second positioning plate, the detection end of the pressure sensor is fixedly connected with a pressure spring, the top of both pasting plates is fixedly connected with the bottom of the proximal pressure spring.

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