Double-station sound barrier steel structure welding equipment and process

Abstract

The invention discloses double-station sound barrier steel structure welding equipment and process, and relates to the technical field of sound barrier steel structure welding, the welding equipment comprises a transfer robot, and a first welding station and a second welding station which are used for welding a sound barrier steel structure are symmetrically arranged on the two sides of the transfer robot respectively; welding robots are arranged on one side of the first welding station and one side of the second welding station correspondingly. Each of the first welding station and the second welding station comprises two groups of positioning modules for positioning the sound barrier steel structure; the positioning module comprises a positioning seat, a positioning ring is fixedly arranged in the positioning seat, a first U-shaped groove used for positioning the sound barrier steel structure is formed in the positioning ring, and a positioning disc is rotationally arranged in the positioning ring; before the sound barrier steel structure is welded, manual pre-spot welding treatment is not needed, and the two to-be-welded wing plates and the to-be-welded web plate are positioned in the second U-shaped groove through the positioning mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of sound barrier steel structure welding, and particularly relates to a double-station sound barrier steel structure welding device and process. Background Art

[0002] A sound barrier is one of the effective facilities for solving the noise problem along high-speed railways. Its main function is to reduce the impact of railway noise on the areas along the line. In addition to the action of its own gravity and random natural crosswind loads, the sound barrier is also repeatedly affected by the pulsating pressure generated when the train passes. When the train speed is relatively high, especially when the high-speed train speed reaches 350 km / h, the effect of the train pulsating pressure on the sound barrier is very obvious, and in some cases, it even causes the damage of the sound barrier components and endangers the train operation safety.

[0003] At present, the sound barrier steel structure is usually an H-shaped steel structure. During the processing, the handling robot transports it to the welding end, and then the welding robot performs the welding. After the welding of one side of the weld is completed, it is necessary to use the flipping device to turn it over. However, after turning over, it is difficult for the H-shaped steel structure to maintain its initial position, so that the welding robot needs to reposition the weld again, which not only easily causes errors but also affects the welding efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a double-station sound barrier steel structure welding device and process to solve the following technical problems: After the welding of one side of the steel structure weld is completed, it is necessary to turn over the steel structure. After turning over, it is difficult for the steel structure to maintain its initial position. Therefore, the welding robot has to reposition the weld again.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A double-station sound barrier steel structure welding device includes a handling robot, and a first welding station and a second welding station for welding the sound barrier steel structure are symmetrically arranged on both sides of the handling robot. Welding robots are arranged on one side of the first welding station and the second welding station respectively; Both the first welding station and the second welding station include two groups of positioning modules for positioning the sound barrier steel structure; the positioning module includes a positioning seat, a positioning ring is fixedly arranged in the positioning seat, a first U-groove for positioning the sound barrier steel structure is opened on the positioning ring, a positioning disk is rotatably arranged in the positioning ring, and a second U-groove for positioning the sound barrier steel structure is opened on the positioning disk; Wherein, a positioning part is arranged on the positioning disk for positioning the sound barrier steel structure in the second U-groove; a rotating part is arranged on the positioning seat for driving the positioning disk to rotate.

[0006] Preferably, the steel structure of the sound barrier includes two groups of wing plates arranged symmetrically in parallel. The wing plates are arranged vertically. A web plate is provided between the two groups of wing plates. The web plate is arranged horizontally. Two weld seams are respectively formed on the upper and lower sides of the contact surfaces between the two ends of the web plate and the wing plates.

[0007] Preferably, the positioning portion includes a first positioning mechanism disposed on one side of the second U-groove for positioning the two side wing plates, and further includes a second positioning mechanism for positioning the web plate.

[0008] Preferably, the first positioning mechanism includes U-shaped frames symmetrically arranged on one side of the second U-groove. The U-shaped frame includes a vertical plate, and a top plate and a bottom plate are symmetrically fixed at both ends of the vertical plate respectively. Among them, supports are symmetrically and fixedly arranged on the positioning disk. A first screw rod is rotatably arranged between the two groups of supports. A first motor is fixedly arranged on one side support. The driving end of the first motor is fixed to the first screw rod. First nuts are symmetrically and helically sleeved on the first screw rod. The first nuts are fixed to the bottom end of the vertical plate.

[0009] Preferably, the second positioning mechanism includes an upper clamping plate and a lower clamping plate arranged on one side of the second U-groove. The upper clamping plate and the lower clamping plate are symmetrically arranged with the horizontal plane where the axis line of the positioning disk is located as the symmetry plane. The second positioning mechanism further includes a mounting plate. A second screw rod is rotatably arranged on the mounting plate. Second nuts are symmetrically and helically sleeved on the second screw rod. A second motor is fixedly arranged on the mounting plate. The driving end of the second motor is fixed to the second screw rod. One group of second nuts is fixed to the upper clamping plate, and the other second nut is fixed to the lower clamping plate.

[0010] Preferably, L-shaped brackets are fixedly arranged on the sides of the two positioning disks away from each other. A driving cylinder is fixedly arranged on the L-shaped bracket. The driving end of the driving cylinder is fixed to the mounting plate.

[0011] Preferably, a support plate is further arranged on the L-shaped bracket. The support plate is connected to a lifting mechanism arranged on the L-shaped bracket.

[0012] Preferably, the lifting mechanism includes a positioning plate fixed to the L-shaped bracket. A third screw rod is rotatably arranged on the positioning plate. Third nuts are symmetrically and helically sleeved on the third screw rod. A lifting rod is rotatably arranged on the third nut. The other end of the lifting rod is rotatably connected to the support plate; Among them, first gears are respectively fixed at both ends of the third screw rod. Driving frames are respectively fixed on both sides of the bottom of the mounting plate. A rack for meshing with the first gear is fixedly arranged on the side of the driving frame close to the positioning disk.

[0013] Preferably, a plurality of groups of rollers are rotatably arranged on the outer edge surface of the positioning disk. The rollers are in rolling abutment with the inner edge surface of the positioning ring; Among them, the rotating portion includes a toothed ring fixed to the positioning disk. At least one group of third motors is fixedly arranged outside the positioning seat. A second gear meshing with the toothed ring is fixedly arranged at the driving end of the third motor.

[0014] A double-station sound barrier steel structure welding process, which is applied to the above-mentioned double-station sound barrier steel structure welding equipment, includes the following steps: Transport the sound barrier steel structure to the second U-groove by a handling robot, and position the sound barrier steel structure through the positioning part; After positioning is completed, the welding robot performs welding treatment on the welds on it; After the welding of the welds on one side is completed, the rotating part drives the positioning disk to rotate, so as to flip the sound barrier steel structure by 180 degrees and perform welding treatment on the welds on its lower side; After welding is completed, remove the component by the handling robot 1.

[0015] Advantages of the present invention: (1) In the present invention, when the first welding station is welding the sound barrier steel structure, the next group of sound barrier steel structures to be welded can be loaded onto the second welding station. Therefore, after the welding of the sound barrier steel structure at the first welding station is completed, the welding robot can directly weld the sound barrier steel structure at the second welding station, saving the feeding time. Correspondingly, the sound barrier steel structure at the first welding station is unloaded and loaded, further improving the welding efficiency; (2) After the sound barrier steel structure in the present invention is positioned on the positioning disk, the welding robot performs welding treatment on the welds on it. After the welding of the welds on this side is completed, in this embodiment, the rotating part drives the positioning disk to rotate to flip the sound barrier steel structure by 180 degrees, and then the welds on its lower side can be welded. After the sound barrier steel structure is positioned in the first U-groove and the second U-groove in the present invention, there is no need to use a crane equipment to turn over the sound barrier steel structure, and it can be automatically turned over by the rotating part, which not only improves the turning efficiency, but also after the turning is completed, the sound barrier steel structure is always positioned in the first U-groove and the second U-groove to avoid the phenomenon that the sound barrier steel structure is misaligned with the initial position when being turned over by a crane. When the welding robot welds the other side, there is no need to perform positioning again, which can further improve the welding efficiency and ensure the uniformity of the welds on the upper and lower sides of the sound barrier steel structure; (3) Before welding, the two side wing plates are first transported to the second U-shaped groove, and the first positioning mechanism is used to pre-position the two side wing plates. Secondly, the web plate is transported between the two side wing plates and in a horizontal state. Then, the first positioning mechanism drives the two side wing plates to move closer to each other and fit with the web plate, thereby realizing the re-positioning of the wing plates. After the positioning of the wing plates is completed, the second positioning mechanism is used to adjust the height of the web plate between the two side wing plates so that the contact surface between the web plate and the wing plates is located at the middle position of the wing plates. Before welding the sound barrier steel structure, the present invention does not require manual pre-spot welding treatment. The two groups of wing plates to be welded and a group of web plates can be directly positioned in the second U-shaped groove through the positioning mechanism. And during the positioning process, it can be ensured that the web plate is located at the central position between the two side wing plates to improve the welding accuracy; (4) In the present invention, since the center axis of gravity of the web plate is coaxial with the central axis of the positioning disk, when the rotating part drives the positioning disk to rotate, the center axis of gravity of the web plate and the central axis of the positioning disk can always remain coaxial. When the web plate rotates 180 degrees, its position coincides with the initial position. Thus, after one side weld of the sound barrier steel structure is welded, as it rotates 180 degrees, the positions of the welds on both sides are replaced, and there will be no phenomenon of weld position change. Therefore, it is not necessary for the welding robot to re-identify and position the welds, and welding can be directly carried out, improving the welding efficiency and stability. Description of the Drawings

[0016] The present invention will be further described below in conjunction with the drawings.

[0017] Figure 1 is a schematic structural diagram of a double-station sound barrier steel structure welding device of the present invention; Figure 2 is a schematic side view structure diagram of the welding station in a double-station sound barrier steel structure welding device of the present invention; Figure 3 is a schematic top view structure diagram of a double-station sound barrier steel structure welding device of the present invention; Figure 4 is a schematic axonometric view structure diagram of the welding station in a double-station sound barrier steel structure welding device of the present invention; Figure 5 is a schematic structural diagram of the positioning disk in a double-station sound barrier steel structure welding device of the present invention Figure 1 ; Figure 6 is a schematic structural diagram of the positioning disk in a double-station sound barrier steel structure welding device of the present invention Figure 2 ; Figure 7 is a schematic structural diagram of the support plate in a double-station sound barrier steel structure welding device of the present invention; Figure 8It is a schematic structural diagram of the initial state of the support plate in a double-station sound barrier steel structure welding device of the present invention; Figure 9 It is a schematic structural diagram of the support plate when it descends in a double-station sound barrier steel structure welding device of the present invention.

[0018] In the figure: 1, handling robot; 2, first welding station; 3, positioning module; 4, sound barrier steel structure; 5, L-shaped bracket; 6, upper clamping plate; 7, support plate; 101, base; 102, linear track; 103, slide rail; 104, welding robot; 201, second welding station; 301, positioning seat; 302, positioning ring; 303, positioning disc; 304, first U-groove; 305, second U-groove; 306, toothed ring; 307, roller; 308, second gear; 309, circular track; 310, circular seat; 311, third motor; 312, support; 401, web; 402, flange; 501, driving cylinder; 502, mounting plate; 503, driving frame; 504, rack; 505, positioning plate; 601, lower clamping plate; 602, first screw; 603, first nut; 604, first motor; 605, vertical plate; 606, top plate; 607, bottom plate; 608, second motor; 609, second screw; 610, second nut; 701, first gear; 702, lifting rod; 703, third nut; 704, guide rod; 705, third screw. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Embodiment 1

[0021] Please refer to Figures 1 - 3 As shown, the present invention is a double-station sound barrier steel structure welding device, including a handling robot 1. On both sides of the handling robot 1, a first welding station 2 and a second welding station 201 for welding the sound barrier steel structure 4 are symmetrically arranged respectively; In this embodiment, the handling robot 1 can adopt a DEPRAG DPS series robot, and the specific model thereof is not limited in this embodiment; Among them, welding robots 104 are respectively arranged on one side of the first welding station 2 and the second welding station 201; Specifically, the welding robot 104 in this embodiment can be a HANMOR AI intelligent welding robot or a Saibang intelligent DCVR-B921 steel structure H-beam welding robot. The specific model is not limited in this embodiment, as long as it can meet the actual welding requirements.

[0022] It should be noted that in this embodiment, by setting two welding stations, first, the handling robot 1 transports the workpiece to be welded to the welding station, and the welding robot 104 on one side of the welding station welds the workpiece. By setting two welding stations, while one welding station is in the process of welding, the other welding station can perform loading and unloading through the handling robot 1, thereby improving the welding efficiency. Exemplarily, when the first welding station 2 is welding the sound barrier steel structure 4, the next sound barrier steel structure 4 to be welded can be loaded onto the second welding station 201. Therefore, after the sound barrier steel structure 4 at the first welding station 2 is welded, the welding robot 104 can directly weld the sound barrier steel structure 4 at the second welding station 201, saving the time for loading. Correspondingly, the sound barrier steel structure 4 at the first welding station 2 is unloaded and loaded, further improving the welding efficiency.

[0023] In this embodiment, both the first welding station 2 and the second welding station 201 include two positioning modules 3 for positioning the sound barrier steel structure 4; specifically, before welding the sound barrier steel structure 4, it is positioned by the two positioning modules 3 to facilitate the stability of the subsequent welding process.

[0024] Please refer to Figure 2 , the positioning module 3 includes a positioning seat 301, a positioning ring 302 is fixedly arranged in the positioning seat 301, a first U-groove 304 for positioning the sound barrier steel structure 4 is opened on the positioning ring 302, a positioning disk 303 is rotatably arranged in the positioning ring 302, a second U-groove 305 for positioning the sound barrier steel structure 4 is opened on the positioning disk 303, and the sizes of the first U-groove 304 and the second U-groove 305 are equal; specifically, in this embodiment, the groove widths of the first U-groove 304 and the second U-groove 305 are greater than the width of the sound barrier steel structure 4 to facilitate the loading and unloading of the sound barrier steel structure 4.

[0025] A positioning portion is provided on the positioning disk 303 to position the sound barrier steel structure 4 in the second U-groove 305; specifically, after the sound barrier steel structure 4 is transported to the second U-groove 305 by the handling robot 1, the sound barrier steel structure 4 is positioned by the positioning portion. Among them, a rotating part is provided on the positioning seat 301, and the rotating part is used to drive the positioning disk 303 to rotate; specifically, after the sound barrier steel structure 4 is positioned on the positioning disk 303, the welding robot 104 is used to weld the welds on it. After the welding of the welds on this surface is completed, in this embodiment, the rotating part is used to drive the positioning disk 303 to rotate, so as to turn the sound barrier steel structure 4 by 180 degrees. Furthermore, the welds on its lower surface can be welded. After the sound barrier steel structure 4 is positioned in the first U-groove 304 and the second U-groove 305 in this embodiment, there is no need to use a crane device to turn over the sound barrier steel structure 4. Instead, it can be automatically turned over by the rotating part, which not only improves the turning efficiency, but also after the turning is completed, the sound barrier steel structure 4 is always positioned in the first U-groove 304 and the second U-groove 305 to avoid the phenomenon that the sound barrier steel structure 4 is misaligned with the initial position when using a crane to turn it over. When the welding robot 104 welds the other surface, there is no need to reposition it, which can further improve the welding efficiency and ensure the uniformity of the welds on the upper and lower surfaces of the sound barrier steel structure 4.

[0026] Embodiment 2

[0027] On the basis of Embodiment 1, please refer to Figure 1 , the sound barrier steel structure 4 includes two groups of wing plates 402 arranged in parallel and symmetrically, the wing plates 402 are arranged vertically, a web 401 is provided between the two groups of wing plates 402, the web 401 is arranged horizontally, and two welds are respectively formed on the upper and lower sides of the contact surfaces between the two ends of the web 401 and the wing plates 402; it can be explained that the contact surface between the web 401 and the wing plates 402 in this embodiment is located at the middle position of the wing plates 402 to ensure the strength uniformity of the sound barrier steel structure 4 after forming. Correspondingly, when the welding robot 104 in this embodiment welds, it is necessary to weld both of the two welds on the upper and lower sides to further improve the connection strength between the web 401 and the wing plates 402.

[0028] In order to further improve the welding efficiency, in this embodiment, the positioning portion includes a first positioning mechanism disposed on one side of the second U-shaped groove 305 for positioning the two side wing plates 402, and further includes a second positioning mechanism for positioning the web 401; specifically, before welding in this embodiment, the two side wing plates 402 are first transported into the second U-shaped groove 305, and the first positioning mechanism is used to pre-position the two side wing plates 402. Secondly, the web 401 is transported between the two side wing plates 402 and in a horizontal state. Then, the first positioning mechanism drives the two side wing plates 402 to move closer to each other and fit with the web 401, thereby realizing the re-positioning of the wing plates 402. After the positioning of the wing plates 402 is completed, the second positioning mechanism is used to adjust the height of the web 401 between the two side wing plates 402, so that the contact surface between the web 401 and the wing plates 402 is located at the middle position of the wing plates 402. In this embodiment, before welding the sound barrier steel structure 4, it is not necessary to perform pre-spot welding manually. The two groups of wing plates 402 to be welded and a group of web 401 can be directly positioned in the second U-shaped groove 305 through the positioning mechanism. Moreover, during the positioning process, it can be ensured that the web 401 is located at the central position between the two side wing plates 402 to improve the welding accuracy.

[0029] Please refer to Figures 4 - 6 , the first positioning mechanism includes U-shaped frames symmetrically disposed on one side of the second U-shaped groove 305. The U-shaped frame includes vertical plates 605, and the two ends of the vertical plates 605 are symmetrically and fixedly provided with top plates 606 and bottom plates 607 respectively. Among them, supports 312 are symmetrically and fixedly disposed on the positioning disk 303. A first screw rod 602 is rotatably disposed between the two groups of supports 312. The thread directions on both sides of the first screw rod 602 are opposite. A first motor 604 is fixedly disposed on one side support 312. The driving end of the first motor 604 is fixed to the first screw rod 602. First nuts 603 are symmetrically and helically sleeved on the first screw rod 602, and the first nuts 603 are fixed to the bottom ends of the vertical plates 605; It should also be noted that when positioning the wing plates 402, first, the two groups of wing plates 402 are clamped in the U-shaped frames by a hoisting device. The upper and lower sides of the wing plates 402 are respectively in contact with the top plate 606 and the bottom plate 607. After the web 401 is transported between the two side wing plates 402, the first motor 604 is started to drive the first screw rod 602 to rotate. The two first nuts 603 respectively drive the U-shaped frames to move closer to each other, and then the wing plates 402 can be synchronously driven to move towards the web 401 until one side of the wing plates 402 is in contact with the web 401 and the other side is in contact with the vertical plate 605; In this embodiment, please refer to Figures 4 - 7, the second positioning mechanism includes an upper clamping plate 6 and a lower clamping plate 601 arranged on one side of the second U-groove 305. The upper clamping plate 6 and the lower clamping plate 601 are symmetrically arranged with the horizontal plane where the axis line of the positioning disk 303 is located as the symmetry plane. The second positioning mechanism further includes a mounting plate 502. A second screw rod 609 is rotatably arranged on the mounting plate 502. The thread directions on both sides of the second screw rod 609 are opposite. Second nuts 610 are symmetrically helically sleeved on the second screw rod 609. A second motor 608 is fixedly arranged on the mounting plate 502. The driving end of the second motor 608 is fixed to the second screw rod 609. One group of second nuts 610 is fixed to the upper clamping plate 6, and the other end of the second nut 610 is fixed to the lower clamping plate 601. It can be explained that after the positioning of the two side wing plates 402 in this embodiment is completed, the end of the adjustable web 401 can be located between the upper clamping plate 6 and the lower clamping plate 601. Start the second motor 608 to drive the second screw rod 609 to rotate, so as to drive the two second nuts 610 to approach each other, and then drive the upper clamping plate 6 and the lower clamping plate 601 to approach each other, driving the web 401 to rise or fall in the two side wing plates 402. When the web 401 is in contact with both the upper clamping plate 6 and the lower clamping plate 601, it means that the web 401 moves to the middle position of the wing plate 402. In this embodiment, when adjusting the position of the web 401, there is no need to use a measurement method for positioning, which can ensure the positioning accuracy of the web 401; At the same time, since the center of gravity axis of the web 401 is coaxial with the central axis of the positioning disk 303, when the rotating part drives the positioning disk 303 to rotate, the center of gravity axis of the web 401 and the central axis of the positioning disk 303 can also always remain coaxial. After the web 401 rotates 180 degrees, its position coincides with the initial position. Furthermore, after one side weld of the sound barrier steel structure 4 is welded, as it rotates 180 degrees, the positions of the two side welds are replaced, and there will be no phenomenon of weld position change. Therefore, there is no need for the welding robot 104 to re-identify and position the weld, and welding can be directly carried out, improving the welding efficiency and stability.

[0030] To adjust the relative positions of the upper clamping plate 6 and the lower clamping plate 601 and the web 401, in this embodiment, reference can be made to Figures 4 - 7 , L-shaped brackets 5 are fixedly arranged on the sides of the two positioning disks 303 that are far away from each other. A driving cylinder 501 is fixedly arranged on the L-shaped brackets. The driving end of the driving cylinder 501 is fixed to the mounting plate 502. It can be explained that when the web 401 needs to be positioned, the two mounting plates 502 are driven to approach each other by the driving cylinder 501, so that the end of the web 401 can be inserted between the upper clamping plate 6 and the lower clamping plate 601. After one side of the sound barrier steel structure 4 is welded, the two driving cylinders 501 drive the mounting plates 502 to move away from each other to prevent the upper clamping plate 6 and the lower clamping plate 601 from interfering with the rotation of the sound barrier steel structure 4.

[0031] As a further solution of this embodiment, please refer toFigures 7 - 9 After the sound barrier steel structure 4 is flipped 180 degrees, in order to avoid interference of the positioning disk 303 with the welding of the welding robot 104, in this embodiment, the rotating part is required to drive the positioning disk 303 to reset to the initial position, so as to facilitate the smooth welding of the welding robot 104 along the second U-shaped groove 305. A support plate 7 is further provided on the L-shaped bracket 5, and the support plate 7 is connected to a lifting mechanism arranged on the L-shaped bracket 5. It can be explained that in the initial state, the upper surface of the support plate 7 is flush with the upper surface of the bottom plate 607. Therefore, when hoisting the wing plate 402, the wing plate 402 can be first supported by the support plate 7 to ensure the stability of hoisting, and then the wing plate 402 can be slid into the U-shaped frame. Correspondingly, when one side of the sound barrier steel structure 4 is welded, in order to avoid interference of the existence of the support plate 7 with its rotation, the lifting mechanism can be used to drive the support plate 7 to descend a certain distance to ensure the stable rotation of the sound barrier steel structure 4. When the sound barrier steel structure 4 rotates 180 degrees, the lifting mechanism can be used to drive the support plate 7 to rise, so as to facilitate the support of the sound barrier steel structure 4 again. Then, the two U-shaped frames are separated from the sound barrier steel structure 4, so that the rotating part can drive the positioning disk 303 to rotate and reset to avoid interference.

[0032] In addition, after the sound barrier steel structure 4 is positioned in the second U-shaped groove 305, there is a certain distance between the sound barrier steel structure 4 and each groove wall of the second U-shaped groove 305 to avoid interference between the positioning disk 303 and the sound barrier steel structure 4 during rotation.

[0033] Please refer to Figures 7 - 9, the lifting mechanism includes a positioning plate 505 fixed to the L-shaped bracket 5. A third screw rod 705 is rotatably arranged on the positioning plate 505. The thread directions on both sides of the third screw rod 705 are opposite. Third nuts 703 are symmetrically arranged on the third screw rod 705 in a spiral manner. A lifting rod 702 is rotatably arranged on the third nut 703. The other end of the lifting rod 702 is rotatably connected to the support plate 7. Among them, first gears 701 are respectively fixed at both ends of the third screw rod 705. Driving frames 503 are respectively fixed on both sides of the bottom of the mounting plate 502. A rack 504 for meshing with the first gear 701 is fixed on the side of the driving frame 503 close to the positioning disk 303. It can be explained that when the mounting plate 502 is in the initial position, the rack 504 is on the side of the first gear 701 close to the positioning disk 303, and the two are not meshed. Therefore, when the driving cylinder 501 drives the mounting plate 502 to move towards the positioning disk 303, the rack 504 does not rotate. When it is necessary to adjust the support plate 7 to descend, after the driving cylinder 501 drives the mounting plate 502 to reset to the initial position, the mounting plate 502 can be further driven to move away from the positioning disk 303. The mounting plate 502 can drive the rack 504 to move through the driving frame 503. The rack 504 meshes with the first gear 701 to drive the third screw rod 705 to rotate. The third nut 703 can drive the support plate 7 to descend a certain height through the lifting rod 702. In this embodiment, it is not necessary to use other servo motors to drive the third screw rod 705 to rotate, which not only saves costs but also improves the stability of its movement.

[0034] It should be noted that the screw-nut transmission mechanisms in this embodiment are all prior arts, and the specific structures and signals thereof are not limited in this embodiment.

[0035] In this embodiment, a guide rod 704 is also fixed on one side of the support plate 7. The other end of the guide rod 704 is slidably inserted into the positioning plate 505, further improving the stability of the lifting of the support plate 7.

[0036] In addition, please refer to Figure 2 、 Figures 4 - 6 , a plurality of groups of rollers 307 are rotatably arranged on the outer edge surface of the positioning disk 303. The rollers 307 are in rolling contact with the inner edge surface of the positioning ring 302. Among them, the rotating part includes a toothed ring 306 fixed to the positioning disk 303. At least one group of third motors 311 are fixed on the outside of the positioning seat 301. A second gear 308 meshing with the toothed ring 306 is fixed at the driving end of the third motor 311. Specifically, in this embodiment, the third motor 311 can be used to drive the second gear 308 to rotate. The second gear 308 can drive the positioning disk 303 to rotate by meshing with the toothed ring 306, so as to realize the angle adjustment of the sound barrier steel structure 4.

[0037] Specifically, an annular track 309 is further provided on one side of the inner peripheral surface of the positioning ring 302, and an annular seat 310 slidably connected to the annular track 309 is fixedly provided on the positioning disk 303 correspondingly. Specifically, in this embodiment, by providing the roller 307, the annular track 309 and the annular seat 310, the stability of the rotation of the positioning disk 303 in the positioning ring 302 is further improved.

[0038] Please refer to Figure 1 , the handling robot 1 is fixed on the base 101, and the base 101 is slidably arranged on the linear track 102. A moving device can be arranged on the linear track 102 to adjust the sliding of the base 101 on the linear track 102, so as to automatically adjust the position of the handling robot 1, facilitating the handling of the components to be welded and the accessories.

[0039] Correspondingly, the welding robot 104 is movably arranged on the slide rail 103, and a moving device is arranged on the slide rail 103 to adjust the movement of the welding robot 104 on the slide rail 103, thereby performing welding at different positions.

[0040] A double-station sound barrier steel structure welding process includes the following steps: Please refer to Figures 1 - 3 , S1. After the sound barrier steel structure 4 is transported to the second U-groove 305 by the handling robot 1, the positioning part positions the sound barrier steel structure 4; S2. After positioning is completed, the welding robot 104 performs welding treatment on the welds on it; S3. After the welding of one side of the weld is completed, the rotating part drives the positioning disk 303 to rotate to flip the sound barrier steel structure 4 by 180 degrees and perform welding treatment on the welds on its lower side; S4. After welding is completed, the component is removed by the handling robot 1.

[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it cannot be understood as a limitation to the present invention. In addition, "first" and "second" are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, terms such as "installed", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The above has described in detail an embodiment of the present invention, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the present invention application should still fall within the scope covered by the patent of the present invention.

Claims

1. A double-station sound barrier steel structure welding device, comprising a handling robot (1), characterized in that, On both sides of the handling robot (1), a first welding station (2) and a second welding station (201) for welding the steel structure (4) of the sound barrier are symmetrically arranged respectively. On one side of the first welding station (2) and the second welding station (201), welding robots (104) are arranged respectively. Both the first welding station (2) and the second welding station (201) include two groups of positioning modules (3) for positioning the steel structure (4) of the sound barrier. The positioning module (3) includes a positioning seat (301). A positioning ring (302) is fixedly arranged in the positioning seat (301). A first U-shaped groove (304) for positioning the steel structure (4) of the sound barrier is formed on the positioning ring (302). A positioning disk (303) is rotatably arranged in the positioning ring (302). A second U-shaped groove (305) for positioning the steel structure (4) of the sound barrier is formed on the positioning disk (303). Among them, a positioning part is arranged on the positioning disk (303) for positioning the steel structure (4) of the sound barrier in the second U-shaped groove (305). A rotating part is arranged on the positioning seat (301) for driving the positioning disk (303) to rotate.

2. The double-station sound barrier steel structure welding equipment according to claim 1, characterized in that, The steel structure (4) of the sound barrier includes two groups of wing plates (402) arranged symmetrically in parallel. The wing plates (402) are arranged vertically. A web (401) is arranged between the two groups of wing plates (402). The web (401) is arranged horizontally. Two weld seams are respectively formed on the upper and lower sides of the contact surfaces between the two ends of the web (401) and the wing plates (402).

3. The double-station sound barrier steel structure welding equipment according to claim 2, characterized in that, The positioning part includes a first positioning mechanism arranged on one side of the second U-shaped groove (305) for positioning the two side wing plates (402), and also includes a second positioning mechanism for positioning the web (401).

4. A double-station sound barrier steel structure welding device according to claim 3, characterized in that, The first positioning mechanism includes U-shaped frames symmetrically arranged on one side of the second U-shaped groove (305). The U-shaped frame includes vertical plates (605). The two ends of the vertical plates (605) are symmetrically and fixedly provided with top plates (606) and bottom plates (607) respectively. Among them, supports (312) are symmetrically and fixedly arranged on the positioning disk (303). A first screw rod (602) is rotatably arranged between the two groups of supports (312). A first motor (604) is fixedly arranged on one side support (312). The driving end of the first motor (604) is fixed to the first screw rod (602). First nuts (603) are symmetrically and spirally sleeved on the first screw rod (602). The first nuts (603) are fixed to the bottom ends of the vertical plates (605).

5. The double-station sound barrier steel structure welding equipment according to claim 3, characterized in that The second positioning mechanism includes an upper clamping plate (6) and a lower clamping plate (601) arranged on one side of the second U-shaped groove (305). The upper clamping plate (6) and the lower clamping plate (601) are symmetrically arranged with the horizontal plane where the axis line of the positioning disk (303) is located as the symmetry plane. The second positioning mechanism further includes a mounting plate (502). A second screw rod (609) is rotatably arranged on the mounting plate (502). Second nuts (610) are symmetrically and spirally sleeved on the second screw rod (609). A second motor (608) is fixedly arranged on the mounting plate (502). The driving end of the second motor (608) is fixed to the second screw rod (609). One group of second nuts (610) is fixed to the upper clamping plate (6), and the other end of the second nuts (610) is fixed to the lower clamping plate (601).

6. A double-station sound barrier steel structure welding device according to claim 5, characterized in that, On the mutually remote sides of the two positioning disks (303), L-shaped brackets (5) are fixedly arranged. A driving cylinder (501) is fixedly arranged on the L-shaped brackets. The driving end of the driving cylinder (501) is fixed to the mounting plate (502).

7. A double-station sound barrier steel structure welding device according to claim 6, characterized in that, A support plate (7) is further arranged on the L-shaped bracket (5). The support plate (7) is connected to a lifting mechanism arranged on the L-shaped bracket (5).

8. A double-station sound barrier steel structure welding device according to claim 7, characterized in that, The lifting mechanism includes a positioning plate (505) fixed to the L-shaped bracket (5). A third screw rod (705) is rotatably arranged on the positioning plate (505). Third nuts (703) are symmetrically and spirally sleeved on the third screw rod (705). A lifting rod (702) is rotatably arranged on the third nut (703). The other end of the lifting rod (702) is rotatably connected to the support plate (7). Wherein, first gears (701) are respectively fixedly arranged at both ends of the third screw rod (705). Driving frames (503) are respectively fixedly arranged on both sides of the bottom of the mounting plate (502). A rack (504) for meshing with the first gear (701) is fixedly arranged on the side of the driving frame (503) facing the positioning disk (303).

9. A double-station sound barrier steel structure welding device according to claim 1, characterized in that, A plurality of groups of rollers (307) are rotatably arranged on the outer edge surface of the positioning disk (303). The rollers (307) are in rolling contact with the inner edge surface of the positioning ring (302). Wherein, the rotating part includes a toothed ring (306) fixed to the positioning disk (303). At least one group of third motors (311) is fixedly arranged on the outside of the positioning seat (301). The driving end of the third motor (311) is fixedly provided with a second gear (308) meshing with the toothed ring (306).

10. A welding process for a double-station sound barrier steel structure, characterized in that, Applied to a double-station sound barrier steel structure welding device as described in any one of claims 1-9, it includes the following steps: The sound barrier steel structure (4) is transported into the second U-shaped groove (305) by a handling robot (1), and the sound barrier steel structure (4) is positioned by the positioning part; After positioning is completed, the welding robot (104) performs welding treatment on the welds on it; After the welds on one side are welded, the rotating part drives the positioning disk (303) to rotate to flip the sound barrier steel structure (4) by 180 degrees, and welding treatment is performed on the welds on its lower side; After welding is completed, the component is removed by the handling robot (1).

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