Photovoltaic bracket welding device

Abstract

The present invention discloses a photovoltaic bracket welding device, which belongs to the field of welding technology. It includes a rotating table, a welding robot arm and two sets of centering components. A support component is installed on the rotating table, an adjustment component is installed on the support component, and the centering component is used for centering and clamping the workpiece; a telescopic cylinder is rotatably connected to the adjustment component, and the output shaft of the telescopic cylinder is rotatably connected to the corresponding centering component, a top pressure component is installed on the support component, and an electric roller is installed on the top pressure component; a visual detection component is installed on the support component. The present invention can effectively reduce the switching time of workpiece replacement and welding process, and improve welding efficiency. The telescopic cylinder can adjust the inclination angle of the centering component, cooperate with the visual detection component to detect the end surface line of the workpiece and the electric roller to adjust the rotation of the workpiece, so as to realize the parallelism between the adjustment plate of the centering component and the end surface of the workpiece, realize the connection positioning of the inclined welding surface, and improve the flexibility of welding.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and more specifically, to a photovoltaic bracket welding device. Background Art

[0002] Photovoltaic brackets are the skeletons that support photovoltaic modules. They are used to fix photovoltaic modules in various application scenarios such as roofs, ground, and water surfaces to ensure the stable operation of photovoltaic systems. Photovoltaic brackets include columns, support components, beams and other components. The bottom and top of the columns are often welded and fixed with a base and a top plate.

[0003] Since the installation of photovoltaic modules is related to the angle of illumination, the end face of the column often needs to be tilted at a certain angle to meet the angle installation requirements of the photovoltaic modules, which increases the difficulty of aligning and welding the column with the base or top plate. In view of this, we propose a photovoltaic bracket welding device. Summary of the invention

[0004] 1. Technical problems to be solved

[0005] The purpose of the present invention is to provide a photovoltaic bracket welding device, which solves the technical problems of alignment and welding difficulty between the column and the base or top plate in the prior art, and achieves the technical effect of improving the flexibility of column end face adjustment and improving welding quality.

[0006] 2. Technical solution

[0007] The embodiment of the present invention provides a photovoltaic bracket welding device, comprising a rotating table, a welding mechanical arm and two sets of centering components, wherein the welding mechanical arm is used for workpiece welding;

[0008] A plurality of support components are installed on the rotating platform, and an adjustment component is installed on the support component. One of the centering components is rotatably connected to the adjustment component, and another centering component is rotatably connected to the support component.

[0009] The adjusting component is used to adjust the distance between the two centering components and drive the centering component to rotate, and the centering component is used for centering and clamping the workpiece;

[0010] The adjusting assembly is rotatably connected to a telescopic cylinder, the output shaft of which is rotatably connected to the corresponding centering assembly, and the telescopic cylinder is used to control the adjusting plate of the centering assembly to be parallel to the end face of the workpiece;

[0011] A pressing assembly is installed on the support assembly, and the pressing assembly is used to fix the workpiece on the support assembly;

[0012] The pressing assembly is provided with an electric roller, which abuts against the workpiece and is used to drive the workpiece to rotate;

[0013] The support assembly is provided with a visual inspection assembly for detecting the end surface line of the workpiece.

[0014] By adopting the above technical solution, the switching time of workpiece replacement and welding process can be effectively reduced, and the welding efficiency can be improved. The telescopic cylinder can adjust the inclination angle of the centering component, cooperate with the visual inspection component to detect the end surface line of the workpiece and the electric roller to adjust the rotation of the workpiece, so as to achieve the parallelism of the adjustment plate of the centering component and the end surface of the workpiece, realize the connection of the inclined welding surface, and improve the flexibility of welding.

[0015] As an optional solution of the technical solution of the document of the present invention, the rotating table includes a base, a support platform is rotatably mounted on the base, a first gear is fixedly mounted on the support platform, a first motor is fixedly mounted on the base, an output shaft of the first motor is fixedly connected to a second gear, and the first gear is meshed with the second gear for transmission.

[0016] As an optional solution of the technical solution of the document of the present invention, the support assembly includes a fixed frame and a top block, the fixed frame is fixedly mounted on the support platform, a fixed plate is fixedly mounted on the fixed frame, the top block is slidably connected to the fixed plate, a first electric cylinder is fixedly mounted on the fixed plate, and the output shaft of the first electric cylinder is fixedly connected to the top block;

[0017] The fixing plate is provided with a first positioning groove, and positioning plates are fixedly mounted on both sides of the top block. The first positioning groove and the positioning plate are both used for positioning the workpiece.

[0018] By adopting the above technical solution, the column is first placed on the fixed plate during welding, and the output shaft of the first electric cylinder pushes the top block up and down, thereby adjusting the height of the center line of the column to ensure that it is colinear with the rotation axis of the centering component, thereby achieving preliminary positioning adjustment of the height of the center line of the column and reducing the difficulty of welding. The setting of the first positioning groove can enable the columnar column to be quickly positioned, and the setting of the positioning plate is aimed at positioning the prismatic column, further reducing the difficulty of positioning the column.

[0019] As an optional solution of the technical solution of the present invention, the adjustment component includes an adjustment frame and a first rack, the adjustment frame is slidably connected to the fixed frame, the first rack is fixedly mounted on the fixed frame, a second motor is fixedly mounted on the adjustment frame, the output shaft of the second motor is fixedly connected to a third gear, the third gear is meshed with the first rack for transmission, a reduction motor is fixedly mounted on the adjustment frame, a first support shaft is rotatably connected to the adjustment frame, one end of the first support shaft is fixedly connected to the reduction motor, and the other end is fixedly connected to the support frame; one of the centering components is rotatably connected to the support frame.

[0020] As an optional solution of the technical solution of the present invention, the centering assembly includes an adjustment plate and a plurality of second racks, the adjustment plate is rotatably connected to two fourth gears, the two fourth gears are coaxially arranged, the second racks are meshed with the corresponding fourth gears for transmission, and a centering block is fixedly installed on the second racks;

[0021] A positioning column is fixedly installed on the adjustment plate for positioning, and the axis of the positioning column is collinear with the center formed by a plurality of centering blocks;

[0022] A second electric cylinder is fixedly mounted on the adjustment plate, the second electric cylinder is fixedly connected to a second rack, a connecting frame is fixedly mounted on the adjustment plate, the second rack is slidably connected to the connecting frame, the adjustment plate of one centering component is rotatably connected to the support frame, and the connecting frame of another centering component is rotatably connected to the fixed frame via a second support shaft.

[0023] By adopting the above technical solution, after the top plate or base of the workpiece to be welded is positioned by the positioning column, the output shaft of the second electric cylinder pushes the corresponding second rack to move, and through the meshing transmission with the fourth gear, drives the other second racks to move, so that the centering block clamps and fixes the workpiece in a centered manner, maintaining the stability of the workpiece during movement and welding.

[0024] As an optional solution of the technical solution of the document of the present invention, a clamping block is installed on the centering block, a guide rod is fixedly installed on the clamping block, the guide rod is slidably connected to the centering block, a first elastic member is mounted on the guide rod, one end of the first elastic member is fixedly connected to the centering block, and the other end is fixedly connected to the guide rod, and a slope is arranged on the clamping block.

[0025] By adopting the above technical solution, when the workpiece base contacts the slope, the clamping block can be pushed to move and the first elastic member can be stretched. Just before the workpiece base abuts against the centering block, the clamping block presses against the adjacent surface of the abutting surface of the centering block, thereby improving the clamping stability of the workpiece base and the positioning accuracy.

[0026] As an optional solution to the technical solution of the present invention, the adjustment plate rotatably connected to the support frame is rotatably connected to the output shaft of the telescopic cylinder, and an inclination sensor is fixedly installed on the adjustment plate rotatably connected to the support frame for detecting the rotation angle of the adjustment plate.

[0027] By adopting the above technical solution, the output shaft of the telescopic cylinder drives the adjustment plate to rotate, thereby effectively controlling the inclination angle of the adjustment plate, adapting to the end faces of different columns, improving the flexibility of welding positioning, and the inclination sensor can effectively record the inclination angle, reducing the difficulty of later proofreading.

[0028] As an optional solution of the technical solution of the present invention, the top pressure assembly includes a third electric cylinder, which is fixedly mounted on a fixed frame, the output shaft of the third electric cylinder is fixedly connected to a sliding plate, the sliding plate is slidably connected to the fixed frame, a fourth electric cylinder is fixedly mounted on the sliding plate, the output shaft of the fourth electric cylinder is fixedly connected to a first guide frame, the first guide frame is slidably connected to the sliding plate, a pressure block is fixedly mounted on the first guide frame for clamping and fixing, and a second positioning groove is provided on the pressure block for positioning.

[0029] As an optional solution of the technical solution of the present invention, a second guide frame is slidably connected to the first guide frame, a second elastic member is mounted on the second guide frame, one end of the second elastic member is fixedly connected to the second guide frame, and the other end is fixedly connected to the first guide frame;

[0030] The electric roller is fixedly mounted on the second guide frame.

[0031] By adopting the above technical solution, after the circular column is placed on the first positioning groove, the output shaft of the fourth electric cylinder drives the first guide frame and the second guide frame to descend, so that the electric roller is pressed on the circular column, and the electric roller rotates to drive the circular column to follow the rotation, thereby adjusting the circular column. After the adjustment is completed, the fourth electric cylinder drives the first guide frame and the second guide frame to continue to descend, and the second elastic member continues to compress until the pressure block and the top block clamp and fix the column.

[0032] As an optional solution of the technical solution of the document of the present invention, the visual detection component includes a fifth electric cylinder, the fifth electric cylinder is fixedly mounted on a fixed frame, the output shaft of the fifth electric cylinder is fixedly connected to a camera frame, the camera frame is slidably connected to the fixed frame, and a visual camera is fixedly mounted on the camera frame.

[0033] By adopting the above technical solution, when the electric roller drives the cylindrical column to rotate, the visual camera captures the cross-sectional line image of the column, and obtains a clear end face line by processing the cross-sectional line graphics and using the machine learning model. During the rotation of the cylindrical column, its end face line is a changing process, from an arc line to a theoretical straight line to an arc surface. When the theoretical straight line state is reached, the column is in the straightening state, realizing automatic positioning of the end face of the column, and effectively reducing the difficulty of positioning the end face of the cylindrical column.

[0034] 3. Beneficial effects

[0035] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0036] 1. The welding device of the present invention can effectively reduce the switching time of workpiece accessories replacement and welding process, and improve welding efficiency. The telescopic cylinder can adjust the inclination angle of the centering component, cooperate with the visual detection component to detect the end surface line of the workpiece and the electric roller to adjust the rotation of the workpiece, thereby controlling the parallelism of the adjustment plate of the centering component and the end surface of the workpiece, realizing the connection of the inclined welding surface, and improving the flexibility of welding.

[0037] 2. When the electric roller of the present invention drives the cylindrical column to rotate, the visual camera captures the cross-sectional line image of the column, and obtains a clear end face line by processing the cross-sectional line graphics and using a machine learning model. During the rotation of the cylindrical column, its end face line is a changing process, from an arc line to a theoretical straight line to an arc surface. When the theoretical straight line state is reached, the column is in a straightening state, realizing automatic positioning of the end face of the column, and effectively reducing the difficulty of positioning the end face of the cylindrical column.

[0038] 3. When the visual camera of the present invention captures the theoretical straight line, the processor calculates and obtains the angle between the theoretical straight line and the horizontal plane. This angle is the inclination angle of the adjustment plate. When the adjustment plate rotates to adjust the angle, the inclination sensor can effectively monitor the inclination angle, thereby realizing precise control of the angle of the adjustment plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the overall structure of a photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention;

[0040] Figure 2 A partial structural schematic diagram of a photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention;

[0041] Figure 3 A schematic diagram of the structure of a top pressing assembly and a supporting assembly of a photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention;

[0042] Figure 4 A schematic diagram of the structure of a rotating table portion of a photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention;

[0043] Figure 5 A schematic diagram of a telescopic cylinder connection structure of a photovoltaic support welding device disclosed in a preferred embodiment of the present invention;

[0044] Figure 6 A schematic diagram of a second rack connection structure of a photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention;

[0045] Figure 7 A schematic diagram of a connection structure of a centering block of a photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention;

[0046] Figure 8 A cross-sectional view of a centering block of a photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention;

[0047] Fig. 9 A schematic diagram of a clamp block connection structure of a photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention;

[0048] Fig.10A photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0049] Fig.11 A schematic diagram of a connection structure of an adjustment plate of a photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention;

[0050] Fig.12 A schematic diagram of the installation position of a motorized roller of a photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention;

[0051] Fig.13 A schematic diagram of the positions of the electric roller and the pressing block of a photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention;

[0052] Fig.14 A photovoltaic bracket welding device disclosed in a preferred embodiment of the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0053] Fig.15 A schematic diagram of the change of the end surface line during the rotation process of a column of a photovoltaic support welding device disclosed in a preferred embodiment of the present invention.

[0054] Explanation of the numbers in the figure: 1. Rotating table; 2. Welding robot arm; 3. Support assembly; 4. Adjustment assembly; 5. Centering assembly; 6. Telescopic cylinder; 7. Pressing assembly; 8. Electric roller; 9. Visual inspection assembly; 11. Base; 12. Support table; 13. First gear; 14. Second gear; 31. Fixed frame; 32. Fixed plate; 33. Top block; 34. Guide column; 35. First positioning groove; 36. Positioning plate; 41. Adjustment frame; 42. First rack; 43. Second motor; 44. Speed ​​reduction motor; 45. First support shaft; 46. Support frame; 51. Adjustment plate; 52. Fourth gear; 53. Second gear strip; 54, centering block; 55, clamping block; 56, first elastic member; 57, second electric cylinder; 58, connecting frame; 59, inclination sensor; 71, third electric cylinder; 72, sliding plate; 73, fourth electric cylinder; 74, first guide frame; 75, pressing block; 76, second positioning groove; 77, through hole; 78, second guide frame; 79, second elastic member; 91, fifth electric cylinder; 92, camera frame; 93, visual camera; 511, guide hole; 512, positioning column; 531, guide groove; 541, cavity; 551, guide rod; 552, slope; 581, guide plate; 582, second support shaft. DETAILED DESCRIPTION

[0055] 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.

[0056] Reference Figures 1 to 4 The present embodiment discloses a photovoltaic bracket welding device, including a rotating table 1 and a welding robot arm 2. The welding robot arm 2 is used for welding and fixing the connection between the top plate or the base and the column. A plurality of array-distributed support assemblies 3 are fixedly installed on the rotating table 1. In the present embodiment, two groups of support assemblies 3 are arranged, and the two groups of support assemblies 3 are also symmetrical about the center of the rotation axis of the rotating table 1. The support assembly 3 is used to adjust the working position of the workpiece and the welding robot arm 2, so that the workpiece on one support assembly 3 is in a welding state, and the other support assembly 3 can transfer the column after welding and place the column to be welded next time, thereby improving the welding efficiency and reducing the replacement time of the welded parts during the welding process.

[0057] The rotating platform 1 includes a base 11, on which a support platform 12 is rotatably mounted, on which a first gear 13 is fixedly mounted, and on which a first motor (not shown in the figure) is fixedly mounted. The output shaft of the first motor is fixedly connected to a second gear 14, and the first gear 13 is meshed with the second gear 14 for transmission. The output shaft of the first motor drives the second gear 14 to rotate, and through meshing transmission, drives the first gear 13 and the support platform 12 to rotate, thereby realizing rotation adjustment.

[0058] The support assembly 3 includes a fixed frame 31 and a top block 33. The fixed frame 31 is fixedly mounted on the support platform 12. A fixed plate 32 is fixedly mounted on the fixed frame 31. The top block 33 is slidably connected to the fixed plate 32 through a guide column 34. A first electric cylinder (not shown in the figure) is fixedly mounted below the fixed plate 32. The output shaft of the first electric cylinder passes through the fixed plate 32 and is fixedly connected to the top block 33. A first positioning groove 35 is provided on the fixed plate 32. Positioning plates 36 are fixedly mounted on both sides of the top block 33. The first positioning groove 35 and the positioning plate 36 are both used for positioning. When welding the column, it is first placed on the fixed plate 32. The output shaft of the first electric cylinder pushes the top block 33 up and down, thereby adjusting the height of the center line of the column to ensure that it is in line with the rotation axis of the centering assembly 5, thereby realizing the preliminary positioning and adjustment of the height of the center line of the column, reducing the difficulty of welding. The setting of the first positioning groove 35 can enable the columnar column to be quickly positioned. The setting of the positioning plate 36 is aimed at positioning the prismatic column, further reducing the difficulty of positioning the column.

[0059] Reference Figure 2 and Figure 5The fixing frame 31 is provided with an adjustment assembly 4, which includes an adjustment frame 41 and a first rack 42. The adjustment frame 41 is slidably connected to the fixing frame 31 through a guide rail, the first rack 42 is fixedly installed on the fixing frame 31, a second motor 43 is fixedly installed on the adjustment frame 41, the output shaft of the second motor 43 is fixedly connected to a third gear, the third gear is meshed with the first rack 42 for transmission, a reduction motor 44 is fixedly installed on the adjustment frame 41, a first support shaft 45 is rotatably connected to the adjustment frame 41, one end of the first support shaft 45 is fixedly connected to the reduction motor 44, and the other end is fixedly connected to the support frame 46. The output shaft of the second motor 43 drives the third gear to rotate, and through meshing transmission with the first rack 42, the adjustment frame 41 slides on the fixing frame 31, thereby realizing the position adjustment of the reduction motor 44, the first support shaft 45 and the support frame 46, and the output shaft of the reduction motor 44 drives the first support shaft 45, thereby realizing the rotation adjustment of the support frame 46.

[0060] Reference Figure 2 , Figures 5 to 11 The welding device also includes two sets of centering components 5, the centering components 5 include an adjusting plate 51 and a plurality of second racks 53, the adjusting plate 51 is rotatably connected to two fourth gears 52, the two fourth gears 52 are coaxially arranged, the second rack 53 is meshed with the corresponding fourth gear 52 for transmission, and the plurality of second racks 53 are staggered to avoid collision and interference during movement, a centering block 54 is fixedly installed on the second rack 53, a plurality of guide holes 511 are opened on the adjusting plate 51, the centering block 54 passes through the guide holes 511 and slidably cooperates with the guide holes 511, a positioning column 512 is fixedly installed on the adjusting plate 51, which is used for centering and positioning when the top plate or the base is placed, the axis of the positioning column 512 is colinear with the centering center formed by the plurality of centering blocks 54, and a clamping block is installed on the centering block 54 55. A guide rod 551 is fixedly installed on the clamping block 55. The guide rod 551 is slidably connected to the centering block 54. A first elastic member 56 is mounted on the guide rod 551. The first elastic member 56 is in the cavity 541 of the centering block 54. One end of the first elastic member 56 is fixedly connected to the inner wall of the cavity 541 of the centering block 54, and the other end is fixedly connected to the guide rod 551. The first elastic member 56 pulls the clamping block 55 to press against the end of the centering block 54. A slope 552 is provided on the clamping block 55. When the workpiece base contacts the slope 552, the clamping block 55 can be pushed to move, and the first elastic member 56 is stretched. At the moment before the workpiece base abuts against the centering block 54, the clamping block 55 presses against the adjacent surface of the abutting surface of the centering block 54, thereby improving the clamping stability and positioning accuracy of the workpiece base.

[0061] A second electric cylinder 57 is fixedly mounted on the adjusting plate 51, and the second electric cylinder 57 is fixedly connected to a second rack 53. A connecting frame 58 is fixedly mounted on the adjusting plate 51, and a plurality of guide plates 581 are fixedly mounted on the connecting frame 58. A plurality of guide grooves 531 are provided on the second rack 53, and the guide plates 581 slide in cooperation with the guide grooves 531, thereby realizing a sliding connection between the second rack 53 and the connecting frame 58. The adjusting plate 51 of one centering component 5 is rotatably connected to the support frame 46, and the connecting frame 58 of the other centering component 5 is rotatably connected to the fixed frame 31 via a second support shaft 582, and the axis of the second support shaft 582 is colinear with the axis of the first support shaft 45. After the top plate or base of the workpiece to be welded is positioned by the positioning column 512 (robot or manual placement), the output shaft of the second electric cylinder 57 pushes the corresponding second rack 53 to move, and through the meshing transmission with the fourth gear 52, drives the other second racks 53 to move, so that the centering block 54 clamps and fixes the workpiece in the center, maintaining the stability of the workpiece during movement and welding.

[0062] The support frame 46 is rotatably connected to the telescopic cylinder 6, and the adjustment plate 51 rotatably connected to the support frame 46 is rotatably connected to the output shaft of the telescopic cylinder 6. The adjustment plate 51 rotatably connected to the support frame 46 is fixedly installed with an inclination sensor 59, model SCT726T, which is used to detect the angle of rotation of the adjustment plate 51 driven by the telescopic cylinder 6. The output shaft of the telescopic cylinder 6 drives the adjustment plate 51 to rotate, thereby effectively controlling the inclination angle of the adjustment plate 51, achieving adaptation to the end faces of different columns, improving the flexibility of welding positioning, and the inclination sensor 59 can effectively record the inclination angle, reducing the difficulty of later proofreading.

[0063] Reference Figure 2 , Figure 3 , Figures 12 to 15A pressing assembly 7 is installed on the fixing frame 31, and the pressing assembly 7 includes a third electric cylinder 71, which is fixedly installed on the fixing frame 31. The output shaft of the third electric cylinder 71 is fixedly connected to a sliding plate 72, and the sliding plate 72 is slidably connected to the fixing frame 31 through a guide rail. A fourth electric cylinder 73 is fixedly installed on the sliding plate 72, and the output shaft of the fourth electric cylinder 73 is fixedly connected to a first guide frame 74, and the first guide frame 74 is slidably connected to the sliding plate 72. A pressing block 75 is fixedly installed at the bottom of the first guide frame 74 for clamping and fixing. The pressing block 75 is located below the sliding plate 72, and a first The second positioning groove 76 is used for auxiliary positioning. The second positioning groove 76 is located directly above the first positioning groove 35 when clamping for positioning. A through hole 77 is opened on the sliding plate 72. The second guide frame 74 is slidably connected to the second guide frame 78. The second guide frame 78 is provided with a second elastic member 79. One end of the second elastic member 79 is fixedly connected to the second guide frame 78, and the other end is fixedly connected to the first guide frame 74. The second guide frame 78 passes through the through hole 77 and is fixedly installed with an electric roller 8. The electric roller 8 is used to adjust the circumferential rotation of the column. When the second elastic member 79 is in the natural state, the axis of the electric roller 8 is below the pressure block 75. After the circular column is placed on the first positioning groove 35, the output shaft of the fourth electric cylinder 73 drives the first guide frame 74 and the second guide frame 78 to descend, so that the electric roller 8 is pressed on the circular column. The electric roller 8 rotates to drive the circular column to rotate accordingly, thereby adjusting the circular column. After the adjustment is completed, the fourth electric cylinder 73 drives the first guide frame 74 and the second guide frame 78 to continue to descend, and the second elastic member 79 continues to compress until the pressure block 75 and the top block 33 clamp the column.

[0064] It should be noted that in order to reduce the difficulty of the circular column following the rotation of the electric roller 8, a driven wheel or ball can be set in the first positioning groove 35. The driven wheel or ball slightly protrudes from the inner wall of the first positioning groove 35, thereby reducing the friction between the column and the inner wall of the first positioning groove 35 and reducing the difficulty of rotating the column.

[0065] When the column is prismatic, the direction of placement is determined when the column is initially placed, thereby ensuring that the inclination direction of the end section of the column is correct.

[0066] The visual inspection component 9 is installed on the fixed frame 31. The visual inspection component 9 includes a fifth electric cylinder 91. The fifth electric cylinder 91 is fixedly installed on the fixed frame 31. The output shaft of the fifth electric cylinder 91 is fixedly connected to a camera frame 92. The camera frame 92 is slidably connected to the fixed frame 31 through a guide rail. A visual camera 93 is fixedly installed on the camera frame 92. When the electric roller 8 drives the cylindrical column to rotate, the visual camera 93 captures the cross-sectional line image of the column, and obtains a clear end face line by processing the cross-sectional line graphics and using a machine learning model. During the rotation of the cylindrical column, its end face line is a changing process, a process from an arc to a theoretical straight line to an arc surface (or a reverse process). When the theoretical straight line state is reached, the column is in a straightening state, realizing the automatic positioning of the end face of the column, and effectively reducing the difficulty of positioning the end face of the cylindrical column.

[0067] It should be noted that in order to reduce the difficulty of abutment between the base and the column, an adjustment component 4 can be set on one side of the two sets of centering components 5, and the second support shaft 582 can also be rotatably set on the adjustment frame 41, so as to realize a two-way clamping and pushing process, which will not be elaborated here.

[0068] When a photovoltaic bracket welding device disclosed in an embodiment of the present invention is in use, the top plate and the base are respectively placed on the positioning columns 512 on the corresponding adjustment plate 51, and the output shaft of the second electric cylinder 57 pushes the corresponding second rack 53 to move, and through the meshing transmission with the fourth gear 52, drives the other second racks 53 to move, so that the centering block 54 can center and clamp the workpiece;

[0069] The output shaft of the first electric cylinder pushes the top block 33 up and down, and adjusts the height of the center line of the column to be colinear with the rotation axis of the centering component 5 (this process is a preset process, that is, the adjustment is completed before the first column welding operation). The column is placed on the fixed plate 32, and the straight end face (non-inclined end face) of the column is against the workpiece base on the adjustment plate 51 that is not connected to the telescopic cylinder 6. The output shaft of the fourth electric cylinder 73 drives the first guide frame 74 and the second guide frame 78 to descend, so that the electric roller 8 is pressed on the circular column. The electric roller 8 rotates to drive the circular column to follow the rotation until the visual camera 93 captures the theoretical straight line of the column. At the same time, the processor calculates the horizontal angle according to the position of the theoretical straight line and the horizontal line. After the adjustment is completed, the fourth electric cylinder 73 drives the first guide frame 74 and the second guide frame 78 to continue to descend, and the second elastic member 79 continues to compress until the pressure block 75 and the top block 33 clamp the column.

[0070] The output shaft of the telescopic cylinder 6 drives the adjustment plate 51 to rotate, and the rotation angle is detected by the inclination sensor 59 until the angle is the same as the theoretical straight line angle of the workpiece end face, so that the adjustment plate 51 and the workpiece end face are parallel;

[0071] The output shaft of the second motor 43 drives the third gear to rotate, and through the meshing transmission with the first rack 42, the adjustment frame 41 slides on the fixed frame 31, driving the position adjustment of the reduction motor 44, the first support shaft 45 and the support frame 46, and the support frame 46 pushes the top plate on the adjustment plate 51 to abut against the end face of the column, so as to achieve the butt connection between the top plate of the workpiece and the inclined end face of the column;

[0072] The rotating table 1 rotates to switch the positions of the two groups of support components 3, so that the workpiece after positioning and clamping moves to one side of the welding robot arm 2, and the welding robot arm 2 initially welds the top plate or base abutting the column (the column does not rotate), completing the initial welding and fixing of the column, and the top pressure component 7 and the electric roller 8 reset and detach from the column, and the output shaft of the reduction motor 44 drives the first support shaft 45, so that the support frame 46 drives the centering component 5 and the workpiece to rotate at a uniform speed around the first support shaft 45, and the welding robot arm 2 continues to weld the workpiece.

[0073] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic bracket welding device, characterized in that: It comprises a rotating table (1), a welding robot arm (2) and two sets of centering components (5), wherein the welding robot arm (2) is used for welding workpieces; A plurality of support assemblies (3) are mounted on the rotating table (1), an adjustment assembly (4) is mounted on the support assembly (3), one centering assembly (5) is rotatably connected to the adjustment assembly (4), and another centering assembly (5) is rotatably connected to the support assembly (3); The adjusting component (4) is used to adjust the distance between the two centering components (5) and drive the centering component (5) to rotate, and the centering component (5) is used for centering and clamping a workpiece; The adjustment component (4) is rotatably connected to a telescopic cylinder (6), the output shaft of the telescopic cylinder (6) is rotatably connected to the corresponding centering component (5), and the telescopic cylinder (6) is used to control the adjustment plate (51) of the centering component (5) to be parallel to the end face of the workpiece; The support assembly (3) is provided with a pressing assembly (7), and the pressing assembly (7) is used to fix the workpiece on the support assembly (3); The pressing assembly (7) is provided with a motorized roller (8), which abuts against the workpiece and is used to drive the workpiece to rotate; The support assembly (3) is provided with a visual detection assembly (9) for detecting the end surface line of a workpiece.

2. A photovoltaic bracket welding device according to claim 1, characterized in that: The rotating platform (1) comprises a base (11), a support platform (12) is rotatably mounted on the base (11), a first gear (13) is fixedly mounted on the support platform (12), a first motor is fixedly mounted on the base (11), an output shaft of the first motor is fixedly connected to a second gear (14), and the first gear (13) and the second gear (14) are meshed and transmitted.

3. A photovoltaic bracket welding device according to claim 2, characterized in that: The support assembly (3) comprises a fixing frame (31) and a top block (33); the fixing frame (31) is fixedly mounted on the support platform (12); a fixing plate (32) is fixedly mounted on the fixing frame (31); the top block (33) is slidably connected to the fixing plate (32); a first electric cylinder is fixedly mounted on the fixing plate (32); and an output shaft of the first electric cylinder is fixedly connected to the top block (33); The fixing plate (32) is provided with a first positioning groove (35), and positioning plates (36) are fixedly mounted on both sides of the top block (33). The first positioning groove (35) and the positioning plates (36) are both used for positioning the workpiece.

4. A photovoltaic bracket welding device according to claim 3, characterized in that: The adjustment assembly (4) comprises an adjustment frame (41) and a first rack (42), the adjustment frame (41) is slidably connected to the fixed frame (31), the first rack (42) is fixedly mounted on the fixed frame (31), a second motor (43) is fixedly mounted on the adjustment frame (41), an output shaft of the second motor (43) is fixedly connected to a third gear, the third gear is meshed with the first rack (42) for transmission, a reduction motor (44) is fixedly mounted on the adjustment frame (41), a first support shaft (45) is rotatably connected to the adjustment frame (41), one end of the first support shaft (45) is fixedly connected to the reduction motor (44), and the other end is fixedly connected to the support frame (46); one of the centering assemblies (5) is rotatably connected to the support frame (46).

5. A photovoltaic bracket welding device according to claim 4, characterized in that: The centering assembly (5) comprises an adjustment plate (51) and a plurality of second racks (53); the adjustment plate (51) is rotatably connected to two fourth gears (52); the two fourth gears (52) are coaxially arranged; the second racks (53) are meshed with the corresponding fourth gears (52) for transmission; and a centering block (54) is fixedly mounted on the second racks (53); A positioning column (512) is fixedly mounted on the adjustment plate (51) for positioning, and the axis of the positioning column (512) is collinear with a center formed by a plurality of centering blocks (54); A second electric cylinder (57) is fixedly mounted on the adjustment plate (51), the second electric cylinder (57) is fixedly connected to a second rack (53), a connecting frame (58) is fixedly mounted on the adjustment plate (51), the second rack (53) is slidably connected to the connecting frame (58), the adjustment plate (51) of one centering component (5) is rotatably connected to the support frame (46), and the connecting frame (58) of the other centering component (5) is rotatably connected to the fixed frame (31) via a second support shaft (582).

6. A photovoltaic support welding device according to claim 5, characterized in that: A clamping block (55) is mounted on the centering block (54), a guide rod (551) is fixedly mounted on the clamping block (55), the guide rod (551) is slidably connected to the centering block (54), a first elastic member (56) is sleeved on the guide rod (551), one end of the first elastic member (56) is fixedly connected to the centering block (54), and the other end is fixedly connected to the guide rod (551), and a slope surface (552) is provided on the clamping block (55).

7. A photovoltaic support welding device according to claim 5, characterized in that: The adjustment plate (51) rotatably connected to the support frame (46) is rotatably connected to the output shaft of the telescopic cylinder (6), and an inclination sensor (59) is fixedly mounted on the adjustment plate (51) rotatably connected to the support frame (46) for detecting the rotation angle of the adjustment plate (51).

8. A photovoltaic support welding device according to claim 3, characterized in that: The pressing assembly (7) comprises a third electric cylinder (71), the third electric cylinder (71) is fixedly mounted on the fixing frame (31), the output shaft of the third electric cylinder (71) is fixedly connected to a sliding plate (72), the sliding plate (72) is slidably connected to the fixing frame (31), a fourth electric cylinder (73) is fixedly mounted on the sliding plate (72), the output shaft of the fourth electric cylinder (73) is fixedly connected to a first guide frame (74), the first guide frame (74) is slidably connected to the sliding plate (72), a pressing block (75) is fixedly mounted on the first guide frame (74) for clamping and fixing, and a second positioning groove (76) is provided on the pressing block (75) for positioning.

9. A photovoltaic support welding device according to claim 8, characterized in that: The first guide frame (74) is slidably connected to a second guide frame (78), the second guide frame (78) is sleeved with a second elastic member (79), one end of the second elastic member (79) is fixedly connected to the second guide frame (78), and the other end is fixedly connected to the first guide frame (74); The electric roller (8) is fixedly mounted on the second guide frame (78).

10. A photovoltaic support welding device according to any one of claims 3 to 9, characterized in that: The visual detection component (9) comprises a fifth electric cylinder (91), the fifth electric cylinder (91) being fixedly mounted on a fixing frame (31), the output shaft of the fifth electric cylinder (91) being fixedly connected to a camera frame (92), the camera frame (92) being slidably connected to the fixing frame (31), and a visual camera (93) being fixedly mounted on the camera frame (92).

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