Automatic welding equipment for battery panel

Abstract

The invention discloses automatic welding equipment for cell panels, and relates to the technical field of photovoltaic cell welding. The supporting frame is provided with a conveying assembly used for conveying battery panels, a feeding assembly used for placing the battery panels on the conveying assembly and enabling positive and negative electrode main grids of the adjacent battery panels to be in accurate butt joint with welding strips, and a welding machine used for conducting series welding on the adjacent battery panels with the well-placed welding strips. The support frame is also provided with a calibration assembly for calibrating the cell panel during conveying, the calibration assembly comprises a cover body which is installed on the top surface of the support frame, a sliding plate which vertically slides along the cover body is arranged in the cover body, and support rods which are symmetrically distributed are arranged on the bottom surface of the sliding plate. Precise calibration is carried out on the cell panel through the calibration assembly, the position precision of the cell panel during conveying and follow-up welding is ensured, positive and negative electrode main grids of the adjacent cell panel can be in accurate butt joint with a welding strip, and the situation of poor welding caused by position deviation is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic cell welding, in particular to an automatic welding device for a cell panel. Background Art

[0002] In the production process of solar panels, string welding is an extremely critical link, and its welding quality directly affects the overall performance and power generation efficiency of solar panels. Currently, a common string welding process involves placing solar panels on a conveyor belt one by one through a robot, and using an automatic feeding mechanism to lay the welding tape.

[0003] Specifically, when the automatic feeding mechanism places the welding ribbon on the negative main grid of the solar panel, it pulls the head end of the welding ribbon to the top of the negative main grid of the solar panel and then releases it, and uses the welding ribbon's own gravity to make it fall onto the negative main grid. However, this placement method has obvious defects. Since the welding ribbon lacks precise positioning and guiding control during the falling process, it is difficult to ensure that it falls accurately on the ideal position of the negative main grid by relying solely on gravity. In actual operation, the welding ribbon is very likely to shift in position and may deviate from the predetermined main grid line position to the sides or front and back directions.

[0004] When this kind of welding strip position deviation occurs, a series of serious problems will be caused when the subsequent welding mechanism performs string welding operations. The welding strip and the main grid cannot achieve good fitting and contact, which can easily lead to the occurrence of cold welding. The cold welding area will increase resistance and reduce the current transmission efficiency. During long-term use, due to factors such as thermal expansion and contraction, the cold welding area may gradually deteriorate and eventually lead to desoldering. Whether it is cold welding or desoldering, the circuit connection inside the solar panel will be interrupted or unstable, which will greatly reduce the power output of the panel and seriously affect its performance in actual applications. It will also reduce the reliability and service life of the product and increase the cost and risk of subsequent maintenance.

[0005] In view of this, this application is hereby filed. Summary of the invention

[0006] The object of the present invention is to provide an automatic welding device for solar panels to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides an automatic welding device for solar panels, including a support frame, on which a conveying assembly for conveying solar panels, a loading assembly for placing solar panels on the conveying assembly and accurately connecting the positive and negative main grids of adjacent solar panels with welding strips, and a welding machine for stringing the adjacent solar panels with the welding strips placed thereon are provided. The support frame is also provided with a calibration assembly for calibrating the solar panels during conveyance, and the calibration assembly includes:

[0008] The cover body is installed on the top surface of the support frame, and a slide plate is arranged inside the cover body for vertical sliding along the cover body. The bottom surface of the slide plate is provided with symmetrically distributed support rods, and the bottom ends of the support rods are provided with upper wedge blocks. A cylinder for pushing the slide plate to move is installed on the top of the cover body.

[0009] The pusher comprises a guide plate horizontally slidably connected to the side wall in the width direction of the cover body, one end of the guide plate extending to the inside of the cover body is provided with a lower wedge block adapted to the upper wedge block, and the lower wedge block is connected to a panel on the side away from the guide plate.

[0010] Furthermore, a plurality of rolling members are rotatably installed on the front end surface of the panel, and the plurality of rolling members are arranged at intervals, and a movable groove is arranged inside the lower wedge block; a first piston cylinder that slides axially along the lower wedge block is arranged inside the movable groove, and a first piston rod that slides axially along the first piston cylinder is arranged on the first piston cylinder, and a first piston plate that slides inside the first piston cylinder is arranged at one end of the first piston rod extending into the first piston cylinder, and the other end of the first piston cylinder is fixed to the side wall of the rolling member; a second piston cylinder is arranged inside the movable groove, and a second piston rod that slides axially along the second piston cylinder is arranged on the second piston cylinder, and a second piston plate that slides inside the second piston cylinder is arranged at one end of the second piston rod extending into the second piston cylinder, and the other end of the second piston rod is fixed to the outer wall of the first piston cylinder; the inner cavity of the first piston cylinder and the inner cavity of the second piston cylinder are connected through a second air pipe.

[0011] Furthermore, a rotation groove is provided on the front end surface of the panel, and the rolling member is rotatably installed inside the rotation groove. The rolling member includes a roller rotatably installed in the rotation groove, a roller is fixedly installed on the outer wall of the roller, and an impeller is also fixedly installed on the outer wall of the roller; the inner cavity of the second piston cylinder is connected to the first air pipe, and the other end of the first air pipe extends into the interior of the rotation groove and corresponds to the impeller.

[0012] Furthermore, the conveying assembly comprises:

[0013] The mesh conveyor belt is driven and arranged on a supporting frame and can reciprocate on the supporting frame;

[0014] The driving component is arranged on the supporting frame and is used to drive the mesh conveyor belt to move on the supporting frame.

[0015] A negative pressure member, the negative pressure member comprising a negative pressure pump mounted on the support frame and a negative pressure box mounted on the support frame, the negative pressure pump and the negative pressure box being connected via a pipeline, a mesh plate being fixedly mounted on the top surface of the negative pressure box, and the mesh plate being located on the bottom surface of the mesh conveyor belt;

[0016] The battery is installed on the support frame, and the negative pressure pump and the driving component are electrically connected to the battery.

[0017] Furthermore, the driving component includes

[0018] A roller body, the roller body comprising a driving roller, a driven roller and a supporting roller rotatably mounted at the front and rear parts of the supporting frame, and a supporting roller rotatably mounted at the lower part of the supporting frame, the mesh conveyor belt being drivingly connected between the driving roller, the driven roller and the supporting roller;

[0019] The driving motor is installed on the supporting frame, and a sprocket is arranged at the driving end and one end of the driving roller, and a chain is connected between the two sprockets.

[0020] Further, the pipeline includes:

[0021] A negative pressure tube is connected to the negative pressure end of the negative pressure pump, and one end of the negative pressure tube away from the negative pressure pump is connected to the negative pressure box;

[0022] The distribution pipe has an air inlet and multiple air outlets, the air outlet is connected to the negative pressure box, and the air inlet is connected to the negative pressure pipe.

[0023] Furthermore, negative pressure holes corresponding to the holes on the surface of the mesh plate are provided on the top wall of the negative pressure box, a sliding groove is provided between the bottom surface of the mesh plate and the top surface of the negative pressure box, a valve plate is slidably installed inside the sliding groove, docking holes corresponding to the negative pressure holes are provided on the valve plate, the valve plate can move horizontally along the sliding groove to adjust the size of the connecting part between the docking hole and the negative pressure hole, a rack is fixedly installed on one end of the valve plate extending to the outside of the sliding groove, a gear meshing with the rack is rotatably installed on the side wall of the cover body, and teeth parallel to the rack and meshing with the gear are installed on the bottom surface of the guide plate.

[0024] Furthermore, a tension spring is fixedly mounted on one end of the valve plate that is inserted into the interior of the sliding groove, and the other end of the tension spring is fixedly connected to the inner wall of the sliding groove.

[0025] Furthermore, a return spring is fixedly mounted on the side wall of the lower wedge-shaped block, and one end of the return spring away from the panel is connected to the inner wall of the cover body.

[0026] Furthermore, the loading assembly includes a gantry installed on the conveying assembly, the gantry is provided with a first linear module arranged parallel to the conveying assembly, the first linear module is provided with a second linear module perpendicular to the gantry, the second linear module is provided with an electric telescopic rod that can be vertically raised and lowered relative to the conveying assembly, and a suction cup manipulator is installed at the telescopic end of the electric telescopic rod.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention pushes the slide plate to slide in the vertical direction through the cylinder in the cover body of the calibration assembly, and the support rod and the upper wedge block on the bottom surface of the slide plate move accordingly, interacting with the lower wedge block at one end of the guide plate, and the lower wedge block drives the panel to move toward the battery panel to achieve calibration, and accurately calibrates the battery panel, ensuring the position accuracy of the battery panel during transportation and subsequent welding, so that the positive and negative main grids of adjacent battery panels can be accurately connected with the welding strips, greatly reducing the poor welding caused by position deviation.

[0029] 2. The present invention generates negative pressure in the negative pressure box through the operation of the negative pressure pump. After the negative pressure is transmitted through the negative pressure pipe and the distribution pipe, the mesh plate on the top surface of the negative pressure box generates adsorption force on the battery panels on the mesh conveyor belt, ensuring that the battery panels can be stable without displacement and shaking during transportation. The stable and adjustable function of the negative pressure adsorption force ensures that the battery panels are not damaged and the position is stable during transportation, which helps to improve the welding quality, thereby improving the overall quality and consistency of the product and reducing the defective rate of the product. The conveying component adopts negative pressure adsorption, which has less local pressure on the surface of the battery panel than traditional mechanical clamping, and can avoid damage to the battery panel.

[0030] 3. In the present invention, the rolling parts and related adaptive adjustment structures in the calibration assembly can reduce friction when in contact with the battery panel, and also play a role in protecting the battery panel, extending the service life of the battery panel and ensuring that product quality is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a front view structural schematic diagram of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the conveying component in the present invention;

[0033] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention in the side view direction;

[0034] Figure 4 It is a structural schematic diagram of the negative pressure box in the present invention;

[0035] Figure 5 It is a schematic diagram of the cross-sectional structure of the positioning box in the present invention;

[0036] Figure 6 It is a schematic diagram of the three-dimensional structure of the pusher in the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the rolling element in the present invention;

[0038] Figure 8 It is a front view structural schematic diagram of the pusher in the present invention;

[0039] Fig. 9For along Figure 8 Schematic diagram of the structure of the middle section line AA.

[0040] In the figure:

[0041] 1. Support frame;

[0042] 2. Conveying assembly; 21. Active roller; 22. Driven roller; 23. Support roller; 24. Driving motor; 25. Mesh conveyor belt; 26. Negative pressure pump; 27. Negative pressure box; 28. Mesh plate; 29. ​​Negative pressure pipe; 210. Storage battery; 211. Distribution pipe; 212. Negative pressure hole; 213. Sliding groove; 214. Valve plate; 215. Docking hole; 216. Tension spring; 217. Rack; 218. Gear;

[0043] 3. Loading assembly; 31. Gantry; 32. First linear module; 33. Second linear module; 34. Electric telescopic rod; 35. Suction cup manipulator;

[0044] 4. Calibration assembly; 41. Cover; 42. Slide plate; 43. Cylinder; 44. Support rod; 45. Upper wedge block; 46. Guide plate; 47. Lower wedge block; 48. Panel; 49. Roller; 491. Roller; 492. Roller; 493. Impeller; 410. Return spring; 411. First piston cylinder; 412. First piston plate; 413. First piston rod; 414. Second piston cylinder; 415. Second piston plate; 416. Second piston rod; 417. First air pipe; 418. Second air pipe;

[0045] 5. Welding machine. DETAILED DESCRIPTION

[0046] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0047] See also Figure 1-Figure 9 The present invention provides a technical solution: an automatic welding device for solar panels, comprising a support frame 1, on which a conveying assembly 2 for conveying solar panels is arranged, a loading assembly 3 for placing solar panels on the conveying assembly 2 and accurately connecting the positive and negative main grids of adjacent solar panels with welding strips, and a welding machine 5 for stringing the solar panels with the welding strips placed thereon, and a calibration assembly 4 for calibrating the solar panels during conveyance is also arranged on the support frame 1, and the calibration assembly 4 includes,

[0048] The cover body 41 is installed on the top surface of the support frame 1, and a slide plate 42 is arranged inside the cover body 41 for vertical sliding along the slide plate 42. The bottom surface of the slide plate 42 is provided with symmetrically distributed support rods 44, and the bottom end of the support rods 44 is provided with an upper wedge block 45. The top of the cover body 41 is provided with a cylinder 43 for pushing the slide plate 42 to move;

[0049] The pusher includes a guide plate 46 which is horizontally slidably connected to the side wall of the cover body 41 in the width direction. One end of the guide plate 46 extending to the inside of the cover body 41 is provided with a lower wedge block 47 which is adapted to the upper wedge block 45. The lower wedge block 47 is connected to a panel 48 on the side away from the guide plate 46.

[0050] Specifically, the support frame 1 provides structural support for the entire device, the conveying assembly 2 is used to realize the transmission of the battery panel in the device so that it can pass through each processing station in turn, and the loading assembly 3 accurately places the battery panel on the conveying assembly 2 through a specific mechanical structure and movement mode, and ensures that the positive and negative main grids of adjacent battery panels can be accurately connected with the welding strips for subsequent welding operations. The cover 41 of the calibration assembly 4 is installed on the top surface of the support frame 1, and the internal slide 42 can slide in the vertical direction under the push of the cylinder 43, and the support rod 44 and the upper wedge block 45 on the bottom of the slide 42 move accordingly; at the same time, the guide plate 4 6 slides horizontally on the side wall in the width direction of the cover body 41, and the lower wedge block 47 at one end thereof interacts with the upper wedge block 45. When the cylinder 43 pushes the upper wedge block 45 down, the lower wedge block 47 drives the panel 48 to move toward the direction of the battery panel to achieve the calibration of the battery panel; by calibrating the battery panel through the calibration component 4, the position accuracy of the battery panel during the transportation process can be improved, ensuring the accurate docking of the battery panel and the welding strip in the subsequent welding operation, improving the welding quality and product consistency, reducing the problems of poor welding caused by the position deviation of the battery panel, and improving the production efficiency and product qualification rate of the whole equipment.

[0051] Reference Figure 2-Figure 5 , a mesh conveyor belt 25 is arranged on the support frame 1 for transmission and can reciprocate on the support frame 1;

[0052] The driving component is arranged on the supporting frame 1 and is used to drive the mesh conveyor belt 25 to move on the supporting frame 1.

[0053] Negative pressure member, the negative pressure member includes a negative pressure pump 26 installed on the support frame 1 and a negative pressure box 27 installed on the support frame 1, the negative pressure pump 26 and the negative pressure box 27 are connected through a pipeline, a mesh plate 28 is fixedly installed on the top surface of the negative pressure box 27, and the mesh plate 28 is located on the bottom surface of the mesh conveyor belt 25;

[0054] The battery 210 is installed on the support frame 1 , and the negative pressure pump 26 and the driving components are electrically connected to the battery 210 .

[0055] Specifically, the mesh conveyor belt 25 realizes reciprocating motion on the support frame 1 under the action of the driving component, and transports the battery panels to various processing positions. When the negative pressure pump 26 works, negative pressure is generated in the negative pressure box 27. Through the cooperation of the mesh plate 28 and the mesh conveyor belt 25, the battery panels are adsorbed on the mesh conveyor belt 25 to prevent the battery panels from being displaced or shaken during transportation. The battery 210 provides power support for the negative pressure pump 26 and the driving component to ensure the normal operation of the equipment. Compared with traditional mechanical clamping methods, the battery panels are fixed by negative pressure adsorption. It can act more evenly on the surface of the battery panels and reduce local pressure and damage risks on the battery panels. At the same time, it can effectively prevent the displacement of the battery panels under high-speed transportation or equipment vibration, improve the stability and accuracy of battery panel transportation, and provide a good foundation for subsequent calibration, welding and other processes, which helps to improve the production efficiency and product quality of the entire equipment.

[0056] See also Figure 3 , Figure 6 and Fig. 9 , a plurality of rolling members 49 are rotatably mounted on the front end surface of the panel 48, and the plurality of rolling members 49 are arranged at intervals, and a movable groove is arranged inside the lower wedge block 47; a first piston cylinder 411 sliding along the axial direction of the lower wedge block 47 is arranged inside the movable groove, and a first piston rod 413 sliding along the axial direction is arranged on the first piston cylinder 411, and a first piston plate 412 sliding inside the first piston cylinder 411 is arranged at one end of the first piston rod 413 extending into the first piston cylinder 411, and the other end of the first piston cylinder 411 is fixed to the side wall of the rolling member 49; a second piston cylinder 414 is arranged inside the movable groove, and a second piston rod 416 sliding along the axial direction is arranged on the second piston cylinder 414, and a second piston plate 415 sliding inside the second piston cylinder 414 is arranged at one end of the second piston rod 416 extending into the second piston cylinder 414, and the other end of the second piston rod 416 is fixed to the outer wall of the first piston cylinder 411; the inner cavity of the first piston cylinder 411 and the inner cavity of the second piston cylinder 414 are connected through a second air supply pipe 418;

[0057] A rotating groove is provided on the front end surface of the panel 48, and a rolling member 49 is rotatably installed inside the rotating groove. The rolling member 49 includes a roller 491 rotatably installed in the rotating groove, a roller 492 is fixedly installed on the outer wall of the roller 491, and an impeller 493 is also fixedly installed on the outer wall of the roller 491; the inner cavity of the second piston cylinder 414 is connected to the first air pipe 417, and the other end of the first air pipe 417 extends into the interior of the rotating groove and corresponds to the impeller 493.

[0058] Specifically, the rolling element 49 on the front end of the panel 48 can reduce the friction when in contact with the battery panel, and facilitate the movement and adjustment of the battery panel. In the movable groove inside the lower wedge block 47, the first piston cylinder 411 and the second piston cylinder 414 realize the compression and transmission of the internal gas through the relative sliding of the first piston rod 413, the second piston rod 416, the first piston plate 412, and the second piston plate 415. When the panel 48 squeezes and calibrates the battery panel, the panel 48 approaches the lower wedge block 47, and the panel 48 drives the first piston rod 413 and the first piston plate 412 to move toward the inside of the first piston cylinder 411. The gas inside the first piston cylinder 411 is transported into the inside of the second piston cylinder 414 through the second gas pipe 418. The gas entering the inside of the second piston cylinder 414 pushes the second piston plate 415 to move, and the second piston plate 415 drives the second piston rod 416 to slide toward the inside of the second piston cylinder 414. The second piston rod 416 drives the first piston cylinder 411 to move upward. The two panels 48 cooperate to instantly calibrate the battery panel. The solar panel is clamped from the mesh conveyor belt 25, reducing the wear between the solar panel and the mesh conveyor belt 25 during the calibration process; at the same time, the second piston plate 415 can push its interior to be blown to the surface of the impeller 493 by the first air pipe 417 during the movement, thereby driving the impeller 493 to rotate, and the impeller 493 drives the roller 491 and the drum 492 to rotate, reducing the friction between the solar panel, which not only ensures the effective calibration of the solar panel, but also reduces the damage to the surface of the solar panel, improves the intelligence level of the equipment and the protection ability of the solar panel, further improves the stability and reliability of the equipment operation, and helps to improve product quality.

[0059] See also Figure 2 , the drive components include

[0060] Roller body, the roller body includes a driving roller 21, a driven roller 22 and a support roller 23 rotatably mounted at the front and rear parts of the support frame 1, and a mesh conveyor belt 25 is transmission-connected between the driving roller 21, the driven roller 22 and the support roller 23;

[0061] The driving motor 24 is mounted on the supporting frame 1 , and a sprocket is provided at the driving end of the driving motor 24 and one end of the driving roller 21 , and a chain is connected between the two sprockets.

[0062] Specifically, after the driving motor 24 is started, the driving roller 21 is driven to rotate through the transmission of the sprocket and the chain. The driving roller 21 cooperates with the driven roller 22 and the supporting roller 23 to enable the mesh conveyor belt 25 connected therebetween to move. By adjusting the rotation speed and direction of the driving motor 24, the movement speed and direction of the mesh conveyor belt 25 can be controlled to meet the needs of different production processes. This driving method has a simple structure and high transmission efficiency, and can stably drive the mesh conveyor belt 25 to operate, which facilitates the precise control of the conveying speed and direction of the solar panel, so that the equipment can adapt to different production rhythms and process requirements, improves the versatility and flexibility of the equipment, and is conducive to improving production efficiency and reducing production costs.

[0063] See also Figure 2-Figure 4 , pipelines include;

[0064] A negative pressure tube 29 is connected to the negative pressure end of the negative pressure pump 26, and one end thereof away from the negative pressure pump 26 is connected to the negative pressure box 27;

[0065] The distribution pipe 211 has an air inlet and multiple air outlets, the air outlet is connected to the negative pressure box 27, and the air inlet is connected to the negative pressure pipe 29.

[0066] Specifically, the negative pressure generated by the negative pressure pump 26 is transmitted to the distribution pipe 211 through the negative pressure pipe 29, and the distribution pipe 211 evenly distributes the negative pressure to each air outlet connected to the negative pressure box 27, so that a stable negative pressure environment is formed in the negative pressure box 27, and then the mesh plate 28 generates an adsorption force on the battery panels on the mesh conveyor belt 25; the design of the distribution pipe 211 can make the negative pressure evenly distributed in multiple negative pressure boxes 27, ensuring the consistency of the adsorption force of the battery panels at different positions of the mesh conveyor belt 25, avoiding problems such as weak adsorption or local deformation of the battery panels due to uneven negative pressure, improving the stability and safety of battery panel transportation, and helping to improve product quality and the reliability of the production process.

[0067] See also Figure 3 and Figure 5 A negative pressure hole 212 corresponding to the holes on the surface of the mesh plate 28 is provided on the top wall of the negative pressure box 27, a sliding groove 213 is provided between the bottom surface of the mesh plate 28 and the top surface of the negative pressure box 27, a valve plate 214 is slidably installed inside the sliding groove 213, and a docking hole 215 corresponding to the negative pressure hole 212 is provided on the valve plate 214, the valve plate 214 can move horizontally along the sliding groove 213 to adjust the size of the connecting part between the docking hole 215 and the negative pressure hole 212, a rack 217 is fixedly installed on one end of the valve plate 214 extending to the outside of the sliding groove 213, a gear 218 meshing with the rack 217 is rotatably installed on the side wall of the cover body 41, and teeth parallel to the rack 217 and meshing with the gear 218 are installed on the bottom surface of the guide plate 46.

[0068] Specifically, when the guide plate 46 slides into the cover body 41 to calibrate the solar panel, the teeth arranged on its bottom surface can mesh with the gear 218 to rotate the gear 218, and the gear 218 drives the rack 217 to move, and the rack 217 drives the valve plate 214 to slide inside the sliding groove 213, so that the docking hole 215 and the negative pressure hole 212 are staggered, thereby blocking the mesh holes on the mesh plate 28 and avoiding the negative pressure from affecting the calibration during the calibration process.

[0069] See also Figure 5 A tension spring 216 is fixedly installed on one end of the valve plate 214 inserted into the sliding groove 213 , and the other end of the tension spring 216 is fixedly connected to the inner wall of the sliding groove 213 .

[0070] Specifically, one end of the tension spring 216 is fixed on the valve plate 214, and the other end is fixed on the inner wall of the sliding groove 213. It is always in a stretched state, providing a restoring force for the valve plate 214. When the guide plate 46 drives the gear 218 and the rack 217 to move the valve plate 214, the elastic force of the tension spring 216 will hinder the movement of the valve plate 214. When the driving force of the guide plate 46 disappears, the elastic force of the tension spring 216 can restore the valve plate 214 to its initial position or equilibrium position. The setting of the tension spring 216 makes the movement of the valve plate 214 have a certain elasticity and self-recovery, which can prevent the valve plate 214 from position deviation or jamming due to accidents or excessive adjustment, thereby improving the stability and reliability of the equipment operation, ensuring the normal operation of the negative pressure adsorption force adjustment function, and helping to maintain the continuous and efficient production of the equipment.

[0071] See also Figure 3 A return spring 410 is fixedly mounted on the side wall of the lower wedge block 47 , and one end of the return spring 410 away from the panel 48 is connected to the inner wall of the cover body 41 .

[0072] Specifically, one end of the return spring 410 is connected to the side wall of the lower wedge block 47, and the other end is connected to the inner wall of the cover body 41. When the cylinder 43 pushes the upper wedge block 45 down, so that the lower wedge block 47 drives the panel 48 to move toward the direction of the battery panel for calibration, the return spring 410 is stretched; when the cylinder 43 returns, the upper wedge block 45 rises, and the elastic force of the return spring 410 causes the lower wedge block 47 to drive the panel 48 to return to its initial position; the return spring 410 ensures that the panel 48 of the calibration assembly 4 can accurately return to the initial position after each calibration action is completed, so as to prepare for the next battery panel calibration, thereby improving the accuracy and repeatability of the calibration assembly 4, and facilitating the stable operation of the equipment and the consistency of product quality.

[0073] See also Figure 1The loading component 3 includes a gantry 31 installed on the conveying component 2, and the gantry 31 is provided with a first linear module 32 arranged parallel to the conveying component 2, and the first linear module 32 is provided with a second linear module 33 perpendicular to the gantry 31, and the second linear module 33 is provided with an electric telescopic rod 34 which can be vertically lifted and lowered relative to the conveying component 2, and a suction cup manipulator 35 is installed at the telescopic end of the electric telescopic rod 34.

[0074] Working principle:

[0075] Loading

[0076] The gantry 31 in the loading assembly 3 carries the first linear module 32, the second linear module 33, the electric telescopic rod 34 and the suction cup manipulator 35. Through the coordinated movement between the modules, the battery panels can be grabbed and accurately placed on the conveying assembly 2, and the positive and negative main grids of adjacent battery panels can be accurately connected with the welding strips to prepare for subsequent welding. Specifically, the first linear module 32 controls the position along the parallel direction of the conveying assembly 2, the second linear module 33 is responsible for positioning perpendicular to the direction of the gantry 31, the electric telescopic rod 34 realizes the vertical lifting operation, and the suction cup manipulator 35 uses negative pressure to absorb the battery panels;

[0077] Conveying link

[0078] The conveying assembly 2 relies on the driving component to drive the mesh conveyor belt 25 to make reciprocating motion on the support frame 1 to convey the battery panels. The driving motor 24 in the driving component drives the active roller 21 to rotate through the sprocket and the chain. The active roller 21 cooperates with the driven roller 22 and the support roller 23 to make the mesh conveyor belt 25 operate. At the same time, the negative pressure pump 26 works to generate negative pressure in the negative pressure box 27. After the negative pressure is transmitted through the negative pressure pipe 29 and the distribution pipe 211, the mesh plate 28 on the top surface of the negative pressure box 27 generates an adsorption force on the battery panels on the mesh conveyor belt 25, ensuring that the battery panels can be stable without displacement and shaking during the transportation process;

[0079] Calibration

[0080] When the solar panel is being transported, the calibration assembly 4 starts to work, and the cylinder 43 in the cover 41 pushes the slide plate 42 to slide in the vertical direction. The support rod 44 and the upper wedge block 45 on the bottom of the slide plate 42 move accordingly, and interact with the lower wedge block 47 at one end of the guide plate 46. The lower wedge block 47 drives the panel 48 to move toward the solar panel to achieve calibration. In addition, the rolling element 49 on the front end of the panel 48 can help reduce the friction with the solar panel. The interior of the panel 48 also uses a piston cylinder, a piston rod, and a gas pipe structure such as a first piston cylinder 411, a first piston rod 413, etc., according to the rolling element 4 9 The state of the rolling element 49 is adaptively adjusted according to the rotation condition. In addition, the movement of the guide plate 46 is also linked with the valve plate 214 for adjusting the size of the negative pressure adsorption force. The valve plate 214 is driven to move horizontally in the sliding groove 213 through the gear 218 and the rack 217, and the size of the connecting part of the docking hole 215 and the negative pressure hole 212 is changed, thereby adjusting the negative pressure adsorption force, which is convenient for the calibration of the battery panel and the subsequent stable transportation. After the movement of each component is completed, the reset spring 410 and the tension spring 216 respectively ensure that the relevant components of the calibration component 4 and the valve plate 214 can be restored to the initial position to prepare for the next operation;

[0081] Welding process

[0082] After the battery panels are loaded, conveyed and calibrated, the welding machine 5 performs string welding operation on the adjacent battery panels with the welding strips placed, thereby completing the automated welding process of the battery panels.

[0083] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes may be made to it in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. An automatic battery panel welding device, comprising a support frame (1), the support frame (1) being provided with a conveying assembly (2) for conveying battery panels, a loading assembly (3) for placing battery panels on the conveying assembly (2) and accurately connecting the positive and negative main grids of adjacent battery panels with welding strips, and a welding machine (5) for string welding adjacent battery panels with the welding strips placed thereon, characterized in that: The support frame (1) is also provided with a calibration component (4) for calibrating the solar panel during transportation. The calibration component (4) comprises: A cover body (41) is mounted on the top surface of the support frame (1), and a slide plate (42) is arranged inside the cover body for vertical sliding along the cover body (41). Support rods (44) are symmetrically distributed on the bottom surface of the slide plate (42). An upper wedge block (45) is arranged at the bottom end of the support rod (44). A cylinder (43) for pushing the slide plate (42) to move is installed on the top of the cover body (41); A pusher, the pusher comprising a guide plate (46) horizontally slidably connected to a side wall of the cover body (41) in the width direction, one end of the guide plate (46) extending into the interior of the cover body (41) is provided with a lower wedge block (47) adapted to the upper wedge block (45), and a panel (48) is connected to the side of the lower wedge block (47) away from the guide plate (46).

2. The automatic welding equipment for solar panels according to claim 1, characterized in that: A plurality of rolling elements (49) are rotatably mounted on the front end surface of the panel (48), and the plurality of rolling elements (49) are arranged at intervals. A movable groove is arranged inside the lower wedge block (47); a first piston cylinder (411) is arranged inside the movable groove and slides axially along the lower wedge block (47); a first piston rod (413) is arranged on the first piston cylinder (411) and slides axially along the first piston cylinder (411); a first piston plate (412) sliding inside the first piston cylinder (411) is arranged at one end of the first piston rod (413) extending into the first piston cylinder (411); and the first piston cylinder (411) is provided with a plurality of rollers (49) arranged at intervals. ) and the other end is fixed to the side wall of the rolling element (49); a second piston cylinder (414) is arranged inside the movable groove, and a second piston rod (416) is arranged on the second piston cylinder (414) to slide along its axial direction, and one end of the second piston rod (416) extending into the second piston cylinder (414) is provided with a second piston plate (415) sliding inside the second piston cylinder (414), and the other end of the second piston rod (416) is fixed to the outer wall of the first piston cylinder (411); the inner cavity of the first piston cylinder (411) and the inner cavity of the second piston cylinder (414) are connected through a second air supply pipe (418).

3. The automatic welding equipment for solar panels according to claim 2, characterized in that: A rotation groove is formed on the front end surface of the panel (48), and the rolling element (49) is rotatably mounted inside the rotation groove. The rolling element (49) includes a roller (491) rotatably mounted in the rotation groove, a roller (492) is fixedly mounted on the outer wall of the roller (491), and an impeller (493) is also fixedly mounted on the outer wall of the roller (491); the inner cavity of the second piston cylinder (414) is connected to a first air supply pipe (417), and the other end of the first air supply pipe (417) extends into the interior of the rotation groove and corresponds to the impeller (493).

4. The automatic welding equipment for solar panels according to claim 1, characterized in that: The conveying component (2) comprises: A mesh conveyor belt (25) is arranged on the support frame (1) for transmission and can reciprocate on the support frame (1); A driving component is arranged on the supporting frame (1) and is used to drive the mesh conveyor belt (25) to move on the supporting frame (1). A negative pressure member, the negative pressure member comprising a negative pressure pump (26) mounted on the support frame (1) and a negative pressure box (27) mounted on the support frame (1), the negative pressure pump (26) and the negative pressure box (27) being connected via a pipeline, a mesh plate (28) being fixedly mounted on the top surface of the negative pressure box (27), and the mesh plate (28) being located on the bottom surface of the mesh conveyor belt (25); The storage battery (210) is mounted on the support frame (1), and the negative pressure pump (26) and the driving component are both electrically connected to the storage battery (210).

5. The automatic welding equipment for solar panels according to claim 4, characterized in that: The driving component includes A roller body, the roller body comprising an active roller (21) symmetrically mounted on the front and rear parts of a support frame (1), a driven roller (22), and a support roller (23) rotatably mounted on the lower part of the support frame (1), the mesh conveyor belt (25) being transmission-connected between the active roller (21), the driven roller (22) and the support roller (23); The driving motor (24) is mounted on the supporting frame (1), and a sprocket is provided at the driving end thereof and one end of the driving roller (21), and a chain is connected between the two sprockets.

6. The automatic welding equipment for solar panels according to claim 5, characterized in that: The pipeline comprises: A negative pressure tube (29) is connected to the negative pressure end of the negative pressure pump (26), and one end of the negative pressure tube (29) away from the negative pressure pump (26) is connected to the negative pressure box (27); The distribution pipe (211) has an air inlet and a plurality of air outlets, wherein the air outlet is connected to the negative pressure box (27), and the air inlet is connected to the negative pressure pipe (29).

7. The automatic welding equipment for solar panels according to claim 6, characterized in that: The top wall of the negative pressure box (27) is provided with negative pressure holes (212) corresponding to the holes on the surface of the mesh plate (28), a sliding groove (213) is provided between the bottom surface of the mesh plate (28) and the top surface of the negative pressure box (27), a valve plate (214) is slidably installed inside the sliding groove (213), and the valve plate (214) is provided with docking holes (215) corresponding to the negative pressure holes (212), and the valve plate (214) can be moved along the sliding groove. (213) moves horizontally to adjust the size of the connecting portion between the docking hole (215) and the negative pressure hole (212); a rack (217) is fixedly mounted on one end of the valve plate (214) extending to the outside of the sliding groove (213); a gear (218) meshing with the rack (217) is rotatably mounted on the side wall of the cover body (41); and teeth parallel to the rack (217) and meshing with the gear (218) are mounted on the bottom surface of the guide plate (46).

8. The automatic welding equipment for solar panels according to claim 7, characterized in that: A tension spring (216) is fixedly mounted on one end of the valve plate (214) inserted into the interior of the sliding groove (213), and the other end of the tension spring (216) is fixedly connected to the inner wall of the sliding groove (213).

9. The automatic welding equipment for solar panels according to claim 2, characterized in that: A return spring (410) is fixedly mounted on the side wall of the lower wedge block (47), and one end of the return spring (410) away from the panel (48) is connected to the inner wall of the cover body (41).

10. The automatic welding equipment for solar panels according to claim 1, characterized in that: The loading assembly (3) comprises a gantry (31) mounted on the conveying assembly (2); the gantry (31) is provided with a first linear module (32) arranged parallel to the conveying assembly (2); the first linear module (32) is provided with a second linear module (33) perpendicular to the gantry (31); the second linear module (33) is provided with an electric telescopic rod (34) capable of vertically lifting relative to the conveying assembly (2); a suction cup manipulator (35) is installed at the telescopic end of the electric telescopic rod (34).

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