A spherical lattice shell steel structure fixing device

Abstract

The present invention belongs to the technical field of spherical lattice shell steel structure fixing, specifically a spherical lattice shell steel structure fixing device, comprising a bracket, one end of the bracket is rotatably connected to a first U-shaped rotating frame, one side of the bracket is installed with an electric push rod, the piston rod end of the electric push rod is fixedly connected with a connecting block for driving the connecting block to telescope and pull the traction steel structure, the outside of the connecting block is rotatably connected to a second U-shaped rotating frame, the first U-shaped rotating frame and the second U-shaped rotating frame are both provided with a steel frame clamping mechanism, which solves the problem that the existing fixing device for spherical lattice shell steel structure is to set up a steel bar bracket to support the steel pipe or steel bar to be welded, which is not only cumbersome to set up the supporting steel pipe or steel bar, but also not convenient enough to fine-tune the butt joint angle between the steel pipe and the steel structure, which is extremely inconvenient to use and affects the progress of the entire project. In addition, it is not convenient enough to fine-tune the butt joint angle between the steel pipe and the steel structure, which is extremely inconvenient to use and affects the progress of the entire project.

Description

Technical Field

[0001] The invention belongs to the technical field of spherical lattice shell steel structure fixing, in particular to a spherical lattice shell steel structure fixing device. Background Art

[0002] In the design of the planetarium, in order to meet the design requirements such as the fantasy of the universe and the starry sky, the architectural structure design is usually extremely complex, and there are extremely rare large-span space steel structures, including space grid shell sphere steel structures, space cross steel beams, space large-span special-shaped variable-section ribbon steel structures, etc. Before the construction of the grid shell sphere steel structure, it is necessary to set up steel bar brackets as fixing devices to support the steel pipes or steel bars to be welded. Then the workers operate the welding equipment to weld and fix the steel structure and the steel bars or steel pipes and other construction workpieces. In addition, during the construction process, it is necessary to adjust the fixing angle by fine-tuning the steel bars to complete the construction of the grid shell sphere steel structure.

[0003] A patent with publication number CN117921290B discloses an adjustable fixing device for steel structure welding. The patent sets a two-way telescopic base beam, a middle connecting slide, an adjustment mechanism, and a buffer telescopic rod, so that when the device lifts the middle connecting slide through a rope, the clamping frames at both ends of the two-way telescopic base beam are approximately at the same horizontal height and are in an inwardly inclined state, so that the docking of the device and the lower V-shaped steel structure under the main steel structure has the advantage of adaptive docking, which is suitable for docking of different lower V-shaped steel structures. It does not require manual adjustment and is more labor-saving and convenient. By setting a clamping frame part, the clamping frame part includes a support plate and two clamping plates, the two clamping plates are located on one side of the support plate, and positioning piles are fixed on the support plate. Then a synchronous transmission mechanism is set on the two-way telescopic base beam, so that the clamping frame part can be docked and fixed with the inclined steel structure, and then the inclined steel structure and the connecting steel structure are clamped and fixed at the same time. It has the advantage of greatly improving the fastening efficiency, and the docking accuracy of the connecting steel structure and the inclined steel structure is higher.

[0004] There are still some problems in the actual application of the above scheme. Usually, a steel bar bracket is set up to support the steel pipe or steel bar to be welded, and the steel pipe or steel bar is connected to the welded steel structure. At the same time, it is necessary to use equipment such as jacks to jack up the steel pipe or steel bar to fine-tune the angle, and then use welding equipment to weld and fix the joint between the steel pipe or steel bar and the steel structure, so as to complete the installation and fixing work of the spherical lattice shell steel structure. However, this fixing device for the spherical lattice shell steel structure is not only cumbersome, but also not convenient enough to fine-tune the joint angle between the steel pipe and the steel structure, which makes it extremely inconvenient to use and affects the progress of the entire project.

[0005] To this end, the present invention provides a spherical lattice shell steel structure fixing device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: a spherical lattice shell steel structure fixing device described in the present invention comprises a bracket, one end of the bracket is rotatably connected to a first U-shaped rotating frame, one side of the bracket is installed with an electric push rod, the piston rod end of the electric push rod is fixedly connected to a connecting block for driving the connecting block to extend and retract to pull the traction steel structure, the outside of the connecting block is rotatably connected to a second U-shaped rotating frame, and the first U-shaped rotating frame and the second U-shaped rotating frame are both provided with a steel frame clamping mechanism inside;

[0008] The steel frame clamping mechanism includes two storage grooves opened inside the first U-shaped rotating frame, and four telescopic rods are symmetrically and slidably connected to the inner cavities of the two storage grooves, and two of them are in a group, and one end of each group of telescopic rods is fixedly connected to an L-shaped clamping frame for clamping the steel structure, and the second U-shaped rotating frame is installed in the same way.

[0009] Preferably, storage grooves are provided inside the first U-shaped rotating frame and the second U-shaped rotating frame, a cylinder is rotatably connected to the inner cavity of the storage groove, and the two ends of the cylinder are located in the inner cavity of the storage groove and fixedly connected to the second bevel gear, the second bevel gear is meshingly connected to the first bevel gear, a bidirectional threaded rod is fixedly connected to the inside of the first bevel gear, and the bidirectional threaded rod is threadedly connected to the telescopic rod.

[0010] Preferably, a driven bevel gear is fixedly connected to the outside of the cylinder, and knobs are rotatably connected to the lower end surfaces of the first U-shaped rotating frame and the second U-shaped rotating frame, and the knob is located at one end of the inner cavity of the storage tank and is fixedly connected to a transmission bevel gear, and the transmission bevel gear is meshingly connected to the driven bevel gear.

[0011] Preferably, slots are provided on both the front and rear end surfaces of the first U-shaped rotating frame and the second U-shaped rotating frame, and sliding columns are slidably connected to the upper end surfaces of the first U-shaped rotating frame and the second U-shaped rotating frame, and a support plate is fixedly connected to the upper end of the sliding column, and a fixed block is fixedly connected to one end of the sliding column located in the inner cavity of the storage tank, and the lower end surface of the fixed block is arranged in a semicircular arc shape.

[0012] Preferably, two springs are fixedly connected to the upper end surface of the fixed block, and one end of the two springs is fixedly connected to the abutment plate, a mounting plate is installed between the L-shaped clamping frames, a fixed plug-in block is fixedly connected to one end surface of the mounting plate, and the fixed plug-in block is arranged in a triangular shape, and one end of the fixed plug-in block is arranged in a semicircular arc shape for lifting the fixed block, and the fixed plug-in block is slidably connected to the slot.

[0013] Preferably, ratchet mechanisms are provided inside the bracket and the connecting block, and the ratchet mechanism includes a rotating groove opened in one end of the bracket, a rotating column is rotatably connected to the inner cavity of the rotating groove, and the rotating column is fixedly connected to the first U-shaped rotating frame, and a ratchet is fixedly connected to the inner cavity of the rotating groove.

[0014] Preferably, a groove is provided inside the rotating column, a micro spring is fixedly connected to the inner wall of the groove, a clamping block is fixedly connected to one end of the micro spring, a pushing column is fixedly connected to one end of the clamping block for driving the clamping block to disengage from the ratchet, and the interior of the connecting block is arranged in the same manner.

[0015] Preferably, an electric telescopic frame is provided inside the upper end surface of the bracket, and the piston rod end of the electric telescopic frame is fixedly connected to a semicircular fixed frame, the semicircular fixed frame is rotatably connected to a semicircular rotating frame inside, and balls are evenly provided on the inner wall of the semicircular fixed frame for reducing friction with the semicircular rotating frame, the electric telescopic frame has two second pulleys rotatably connected to the inner cavity, and one of the second pulleys is externally connected to a belt for transmission, and the other second pulley is arranged above the belt for limiting the belt, a servo motor is provided on one side of the electric telescopic frame, and the output shaft of the servo motor is fixedly connected to the second pulley.

[0016] Preferably, both end surfaces of the semicircular rotating frame are fixedly connected with semicircular gear rings, two support frames are symmetrically installed at both ends of the semicircular fixed frame, and the two support frames are rotatably connected with a first pulley in the inner cavity, the first pulley is connected to the belt transmission, both ends of the first pulley pass through the support frame and are fixed with toothed disks, and the toothed disks are meshingly connected with the semicircular gear rings.

[0017] Preferably, an automatic welding adjustment component is provided inside the semicircular rotating frame, and the automatic welding adjustment component includes a fixed cylinder fixedly connected to the outside of the semicircular rotating frame, a spring is fixedly connected to the upper wall of the inner cavity of the fixed cylinder, a laser welding head is fixedly connected to one end of the spring, the laser welding head is located outside the inner cavity of the semicircular rotating frame and an H-shaped mounting frame is installed, pulleys are rotatably connected at both ends of the H-shaped mounting frame, one end of the laser welding head located in the inner cavity of the fixed cylinder is electrically connected to a wire, a battery is provided outside the semicircular rotating frame, and the wire is electrically connected to the battery for powering the laser welding head.

[0018] The beneficial effects of the present invention are as follows:

[0019] The L-shaped bracket is used to fix the steel structure and the steel pipe in the L-shaped bracket, so that the steel structure and the steel pipe can be fixed to the L-shaped bracket by the L-shaped bracket.

[0020] 2. The spherical grid shell steel structure fixing device described in the present invention drives the semicircular rotating frame to slide to the outside of the welding point between the steel bar and the steel structure, and makes the semicircular rotating frame drive the H-shaped mounting frame to fit with the steel bar and the steel structure surface by the pulley, so as to ensure the distance between the laser welding head and the welding point between the steel bar and the steel structure, improve the welding accuracy, and then when the semicircular rotating frame drives the laser welding head to rotate and weld around the steel bar and the steel structure in a ring shape, if the steel bar and the steel structure have edges and corners, the pulley will push the H-shaped mounting frame to move upward, and at the same time, the H-shaped mounting frame drives the laser welding head to slide into the inner cavity of the fixing cylinder and squeezes the spring, so as to adaptively adjust the distance between the laser welding head and the steel bar and the steel structure, thereby solving the problem that the existing spherical grid shell steel structure fixing device usually manually controls the welding equipment to weld and fix around the welding point between the steel bar and the steel structure after the steel bar and the steel structure are butt-jointed, which makes it difficult to accurately control the distance between the welding head and the welding point between the steel bar, easily causing the steel bar to be welded through, and also affecting the load-bearing capacity of the entire spherical grid shell steel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the structure of the main view of the present invention as a whole;

[0023] Figure 2 It is a schematic diagram of the structure of the present invention when viewed from above;

[0024] Figure 3 It is a schematic diagram of a half-section structure of a first U-shaped rotating frame of the present invention;

[0025] Figure 4 It is a schematic diagram of the installation structure of the fixed plug block of the present invention;

[0026] Figure 5 This is a schematic diagram of the overall structure of the fixed block installation of the present invention;

[0027] Figure 6 It is a schematic diagram of the second U-shaped rotating frame installation structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the overall structure of the semicircular rotating frame of the present invention;

[0029] Figure 8 It is a schematic diagram of the internal structure of the fixed cylinder in half section of the present invention;

[0030] Fig. 9 This is a schematic diagram of the internal structure of a half-section storage tank of the present invention;

[0031] Fig.10 This is a schematic diagram of a half-section structure of a card block installation of the present invention;

[0032] In the figure: 1, bracket; 2, first U-shaped rotating frame; 3, electric push rod; 4, second U-shaped rotating frame; 5, steel frame clamping mechanism;

[0033] 51. L-shaped clamping frame; 52. telescopic rod; 53. bidirectional threaded rod; 54. first bevel gear; 55. storage slot; 56. second bevel gear; 57. cylinder; 58. driven bevel gear; 59. storage slot; 6. automatic welding adjustment assembly; 61. fixing cylinder; 62. spring; 63. laser welding head; 64. H-shaped mounting frame; 65. pulley; 66. wire;

[0034] 7. Transmission bevel gear; 8. Rotation groove; 9. Ratchet; 10. Rotation column; 11. Abutment plate; 12. Sliding column; 13. Fixed block; 14. Spring; 15. Mounting plate; 16. Fixed plug-in block; 17. Slot; 18. Connecting block; 19. Electric telescopic frame; 20. Semicircular fixed frame; 21. Support frame; 22. Toothed disc; 23. Belt; 24. First pulley; 25. Semicircular gear ring; 26. Semicircular rotating frame; 27. Knob; 28. Second pulley; 29. ​​Groove; 30. Micro spring; 31. Block; 32. Push column. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] Embodiment 1

[0037] like Figures 1 to 10As shown, a spherical lattice shell steel structure fixing device according to an embodiment of the present invention comprises a bracket 1, one end of the bracket 1 is rotatably connected to a first U-shaped rotating frame 2, an electric push rod 3 is installed on one side of the bracket 1, a piston rod end of the electric push rod 3 is fixedly connected to a connecting block 18, which is used to drive the connecting block 18 to extend and retract to pull the traction steel structure, the connecting block 18 is externally rotatably connected to a second U-shaped rotating frame 4, and a steel frame clamping mechanism 5 is provided inside the first U-shaped rotating frame 2 and the second U-shaped rotating frame 4;

[0038] The steel frame clamping mechanism 5 includes two receiving grooves 55 opened inside the first U-shaped rotating frame 2. Four telescopic rods 52 are symmetrically and slidably connected to the inner cavities of the two receiving grooves 55, and two of them are in a group. One end of each group of telescopic rods 52 is fixedly connected to an L-shaped clamping frame 51 for clamping the steel structure, and the second U-shaped rotating frame 4 is installed in the same way.

[0039] Specifically, in the prior art, a steel bar bracket is usually set up to support the steel bar to be welded and connected with the steel structure, and then a jack or a crane is used to lift the steel bar so that the operator can fine-tune the construction angle, and then the welding equipment is used to weld and fix the steel pipe or the steel bar to the steel structure, thereby completing the installation and fixing of the spherical lattice shell steel structure. However, this fixing device set up with steel bars is not only cumbersome to set up and disassemble, but also unable to directly fine-tune the angle of the steel pipe and the steel structure through the fixing device, which makes it extremely inconvenient to use and affects the progress of the entire project.

[0040] The present invention installs the first U-shaped rotating frame 2 on the steel structure, and drives the telescopic rod 52 to slide into the inner cavity of the storage groove 55, and then the telescopic rod 52 drives the L-shaped clamping frame 51 to move synchronously, so that the first U-shaped rotating frame 2 is clamped and fixed to the steel structure, and the first U-shaped rotating frame 2 is twisted to adjust the angle on the upper part of the bracket 1, and then the steel pipe or steel bar to be welded is placed on the outside of the second U-shaped rotating frame 4, and the telescopic rod 52 is driven to slide into the inner cavity of the storage groove 55, and then the telescopic rod 52 drives the L-shaped clamping frame 51 to move synchronously, so as to clamp and fix the steel pipe or steel bar, and then the second U-shaped rotating frame 4 is twisted to rotate outside the connecting block 18 to adjust the angle, and the electric push rod 3 is started to drive the connecting block 18 to move close to the bracket 1. Then, the second U-shaped rotating frame 4 drives the steel pipe or steel bar to move synchronously, so that the steel pipe or steel bar is connected to the position to be welded of the steel structure. During the connection process, the second U-shaped rotating frame 4 is driven to rotate by moving the steel pipe or steel bar, and the second U-shaped rotating frame 4 is rotated outside the connecting block 18 for fine adjustment to avoid deviation in the connection angle between the steel pipe or steel bar and the steel structure, which affects the load-bearing distribution of the entire spherical grid shell steel structure and leads to quality and other safety risks after the completion of the spherical grid shell steel structure building. After the steel pipe or steel bar is connected and fixed to the steel structure, the connection is welded and fixed by driving the welding equipment, thereby completing the construction and fixing of the steel structure, and welding and fixing are performed in sequence until the construction of the spherical grid shell steel structure is completed, thereby solving the above-mentioned problem.

[0041] like Figure 2 , Figure 3 and Fig. 9 As shown, a storage groove 59 is provided inside the first U-shaped rotating frame 2 and the second U-shaped rotating frame 4, and a cylinder 57 is rotatably connected to the inner cavity of the storage groove 59, and the two ends of the cylinder 57 are located in the inner cavity of the storage groove 55 and fixedly connected to the second bevel gear 56, the second bevel gear 56 is meshingly connected to the first bevel gear 54, and a bidirectional threaded rod 53 is fixedly connected to the inside of the first bevel gear 54, and the bidirectional threaded rod 53 is threadedly connected to the telescopic rod 52.

[0042] like Figure 2 , Figure 3 and Fig. 9 As shown, a driven bevel gear 58 is fixedly connected to the outside of the cylinder 57, and knobs 27 are rotatably connected to the lower end surfaces of the first U-shaped rotating frame 2 and the second U-shaped rotating frame 4, and the knob 27 is located at one end of the inner cavity of the storage groove 59 and is fixedly connected to a transmission bevel gear 7, and the transmission bevel gear 7 is meshed with the driven bevel gear 58.

[0043] Specifically, when constructing the spherical lattice shell steel structure, the first U-shaped rotating frame 2 is installed with the steel structure, and the knob 27 is twisted to rotate the transmission bevel gear 7, and the transmission bevel gear 7 is meshed with the transmission driven bevel gear 58, thereby driving the cylinder 57 to rotate, and then driving the second bevel gear 56 to rotate. During the rotation process, the second bevel gear 56 will mesh with the transmission first bevel gear 54 to rotate, and at the same time drive the bidirectional threaded rod 53 to rotate, and then the threaded transmission telescopic rod 52 slides into the inner cavity of the storage groove 55, and the telescopic rod 52 drives the L-shaped clamping frame 51 to clamp and fix the steel structure, and then the steel pipe or steel bar to be welded is placed outside the second U-shaped rotating frame 4, and the knob 27 is twisted to rotate. The transmission bevel gear 7 is meshed with the transmission driven bevel gear 58, and then drives the cylinder 57 to rotate, and then drives the second bevel gear 56 to rotate. During the rotation process, the second bevel gear 56 will mesh with the transmission first bevel gear 54 to rotate, and at the same time drive the two-way threaded rod 53 to rotate, and threadedly drive the telescopic rod 52 to slide into the inner cavity of the storage groove 55, and then the telescopic rod 52 drives the L-shaped clamping frame 51 to move synchronously, and then clamp and fix the steel pipe or steel bar, thereby completing the fixing work of the steel structure, and then use welding equipment to weld and fix the steel pipe and the steel structure, improve the convenience of using the fixing device, improve the construction efficiency of the spherical lattice shell steel structure, and increase the progress of the project construction.

[0044] like Figure 4 , Figure 5 and Fig. 9 As shown, both front and rear end surfaces of the first U-shaped rotating frame 2 and the second U-shaped rotating frame 4 are provided with slots 17, and the upper end surfaces of the first U-shaped rotating frame 2 and the second U-shaped rotating frame 4 are slidably connected with sliding columns 12, and the upper ends of the sliding columns 12 are fixedly connected with abutment plates 11, and one end of the sliding column 12 located in the inner cavity of the storage groove 59 is fixedly connected with a fixing block 13, and the lower end surface of the fixing block 13 is arranged in a semicircular arc shape.

[0045] like Figure 4 , Figure 5 and Fig. 9 As shown, two springs 14 are fixedly connected to the upper end surface of the fixed block 13, and one end of the two springs 14 is fixedly connected to the abutment plate 11, a mounting plate 15 is installed between the L-shaped clamping frame 51, and a fixed plug-in block 16 is fixedly connected to one end surface of the mounting plate 15, and the fixed plug-in block 16 is arranged in a triangular shape, and one end of the fixed plug-in block 16 is arranged in a semicircular arc shape for lifting the fixed block 13, and the fixed plug-in block 16 is slidably connected to the slot 17.

[0046] Specifically, when the first U-shaped rotating frame 2 and the second U-shaped rotating frame 4 are clamped and fixed to the steel structure and the steel pipe, the L-shaped clamping frame 51 will drive the mounting plate 15 to move synchronously, and the mounting plate 15 will drive the fixed plug 16 to slide into the inner cavity of the slot 17. Since one end of the fixed plug 16 is set in a semicircular arc shape, and the lower end surface of the fixed block 13 is set in a semicircular arc shape, the fixed plug 16 is inserted into the inner cavity of the slot 17, and the semicircular arc shape is used to easily insert the fixed block 13 and the inner wall of the storage groove 59. At the same time, the fixed plug 16 is set in a triangular shape, and the mounting plate 15 continues to push the fixed plug 16 to insert into the inner cavity of the slot 17, and the fixed block 13 will move upward along the surface of the fixed plug 16. At the same time, the fixing block 13 drives the sliding column 12 to move upward, and then pushes the abutment plate 11 to abut the steel structure and steel pipe in the inner cavity of the L-shaped clamping frame 51, so as to ensure the position of the steel structure and steel pipe in the inner cavity of the L-shaped clamping frame 51. At the same time, the abutment plate 11 cooperates with the L-shaped clamping frame 51 to squeeze the steel structure and steel pipe, so that they can be fixed and cannot move, and prevent the steel structure and steel pipe from slightly moving during welding and fixing, affecting the quality of the project. This solves the problem that after the existing spherical lattice shell steel structure fixing device has a butt-fixing problem, due to the inconvenience of fixing the steel pipe, when the steel pipe is welded to the steel structure, if there is a slight deviation of the steel pipe, it will cause the construction direction of the entire steel structure, causing problems with the quality of the project.

[0047] like Figure 1 , Fig. 9 and Fig.10 As shown, a ratchet mechanism is provided inside the bracket 1 and the connecting block 18, and the ratchet mechanism includes a rotating groove 8 opened in one end of the bracket 1, a rotating column 10 is rotatably connected to the inner cavity of the rotating groove 8, and the rotating column 10 is fixedly connected to the first U-shaped rotating frame 2, and a ratchet 9 is fixedly connected to the inner cavity of the rotating groove 8.

[0048] like Figure 1 , Fig. 9 and Fig.10 As shown, a groove 29 is opened inside the rotating column 10, a micro spring 30 is fixedly connected to the inner wall of the groove 29, a clamping block 31 is fixedly connected to one end of the micro spring 30, and a pushing column 32 is fixedly connected to one end of the clamping block 31 for driving the clamping block 31 to disengage from the ratchet 9, and the interior of the connecting block 18 is arranged in the same way.

[0049] Specifically, after the first U-shaped rotating frame 2 is fixed to the steel structure, the block 31 is pushed to slide in the inner cavity of the groove 29 by pressing the push column 32, and then the micro spring 30 is squeezed to disengage the ratchet 9, and then the bracket 1 is turned outside the rotating column 10 to adjust the angle. After the adjustment is completed, the push column 32 is released, and the block 31 is bounced up by the micro spring 30 to slide into the inner cavity of the ratchet 9 for engagement, thereby fixing the first U-shaped rotating frame 2, and then the second U-shaped rotating frame 4 is used to clamp and fix the steel pipe, and then the block 31 is pushed to slide in the inner cavity of the groove 29 by the push column 32, and then the micro spring 30 is squeezed to disengage the ratchet 9, and then the bracket 1 is turned outside the rotating column 10 to adjust the angle. After the adjustment is completed, the push column 32 is released, and the block 31 is bounced up by the micro spring 30 to slide into the inner cavity of the ratchet 9 for engagement, thereby fixing the first U-shaped rotating frame 2, and then the steel pipe is clamped and fixed by the second U-shaped rotating frame 4, and then the block 31 is pushed to slide in the inner cavity of the groove 29 by the push column 32, and then the micro spring 30 is squeezed to disengage the ratchet 9, and then the bracket 1 is turned outside the rotating column 10 to adjust the angle. The moving steel pipe drives the second U-shaped rotating frame 4 to rotate outside the connecting block 18 to adjust the angle, and at the same time, the electric push rod 3 is started to pull the connecting block 18 to drive the steel pipe to move close to the steel structure, and the second U-shaped rotating frame 4 is adjusted to fine-tune the angle between the steel pipe and the steel structure after docking, thereby ensuring the engineering quality of the spherical lattice shell steel structure, thereby solving the problem that the existing spherical lattice shell steel structure fixing device uses a steel bar bracket to hold up the steel bars to be welded, and uses equipment such as jacks to lift the steel bars to fine-tune the angle after the steel bars are docked with the steel structure. However, this adjustment method is not only cumbersome to operate, but also the steel bar adjustment is prone to offset, thereby affecting the progress of the entire project.

[0050] Embodiment 2

[0051] like Figures 1 to 3 and Figure 7 As shown, an electric telescopic frame 19 is arranged inside the upper end surface of the bracket 1, and the piston rod end of the electric telescopic frame 19 is fixedly connected to a semicircular fixed frame 20, and the semicircular fixed frame 20 is rotatably connected to a semicircular rotating frame 26 inside, and the inner wall of the semicircular fixed frame 20 is evenly provided with balls for reducing the friction with the semicircular rotating frame 26, and the inner cavity of the electric telescopic frame 19 is rotatably connected to two second pulleys 28, and one second pulley 28 is externally connected to a belt 23 for transmission, and the other second pulley 28 is arranged above the belt 23 for limiting the belt 23, and a servo motor is arranged on one side of the electric telescopic frame 19, and the output shaft of the servo motor is fixedly connected to the second pulley 28.

[0052] like Figures 1 to 3 and Figure 7 As shown, both end surfaces of the semicircular rotating frame 26 are fixedly connected with semicircular gear rings 25, and two support frames 21 are symmetrically installed at both ends of the semicircular fixed frame 20, and the inner cavities of the two support frames 21 are rotatably connected with first pulleys 24, and the first pulley 24 is transmission-connected with the belt 23, and both ends of the first pulley 24 pass through the support frames 21 and are fixedly connected with toothed discs 22, and the toothed discs 22 are meshingly connected with the semicircular gear rings 25.

[0053] Specifically, after the steel bar is docked and fixed to the steel structure, the electric telescopic frame 19 is started to drive the semicircular fixed frame 20 to move upward, and the semicircular fixed frame 20 drives the semicircular rotating frame 26 to slide to the outside of the steel bar and the steel structure to be welded, and then the servo motor is started to drive the second pulley 28 to rotate, and the second pulley 28 drives the belt 23 to rotate, and then drives the first pulley 24 to rotate. During the rotation of the first pulley 24, the two toothed discs 22 are driven to rotate, and the two toothed discs 22 are meshed with the transmission semicircular gear ring 25 to rotate. After the semicircular gear ring 25 drives the semicircular rotating frame 26 to rotate sixty degrees, the two toothed discs 22 are alternately meshed with the transmission semicircular gear ring 25 to drive the semicircular rotating frame 26 It rotates in a circular shape, and a welding mechanism is provided in the inner cavity of the semicircular rotating frame 26. Then, during the rotation process of the semicircular rotating frame 26, the welding mechanism is used to weld and fix the steel bar and the steel structure. Before the steel bar and the steel structure are welded and fixed, the electric push rod 3 is used to cooperate with the second U-shaped rotating frame 4 to drive the steel bar and the steel structure to be connected, and the steel bar and the steel structure are adjusted to ensure that the welding position is in the inner cavity of the semicircular rotating frame 26 to improve the welding quality. This solves the problem that after the steel bar and the steel structure are connected, the existing spherical lattice shell steel structure fixing device is used. Because the welding equipment is usually manually controlled to weld and fix around the connection between the steel bar and the steel structure, not only the welding speed is slow, the efficiency is low, but also it is very harmful to the human body.

[0054] like Figure 1 , Figure 8 and Figure 7 As shown, an automatic welding adjustment component 6 is arranged inside the semicircular rotating frame 26, and the automatic welding adjustment component 6 includes a fixed cylinder 61 fixedly connected to the outside of the semicircular rotating frame 26, a spring 62 is fixedly connected to the upper wall of the inner cavity of the fixed cylinder 61, a laser welding head 63 is fixedly connected to one end of the spring 62, the laser welding head 63 is located outside the inner cavity of the semicircular rotating frame 26, an H-shaped mounting frame 64 is installed, the two ends of the H-shaped mounting frame 64 are rotatably connected to pulleys 65, the laser welding head 63 is located at one end of the inner cavity of the fixed cylinder 61 and is electrically connected to a wire 66, a battery is arranged outside the semicircular rotating frame 26, and the wire 66 is electrically connected to the battery for powering the laser welding head 63.

[0055] Specifically, when welding the joint between the steel bar and the steel structure, the semicircular rotating frame 26 is driven to slide to the outside of the joint between the steel bar and the steel structure to be welded, and the semicircular rotating frame 26 drives the laser welding head 63 to approach the joint between the steel bar and the steel structure to be welded, and at the same time, the H-shaped mounting frame 64 drives the pulley 65 to fit the surface of the steel bar and the steel structure, so as to ensure the spacing between the laser welding head 63 and the joint between the steel bar and the steel structure to be welded, and ensure the welding accuracy. Then, when the semicircular rotating frame 26 drives the laser welding head 63 to rotate in a ring around the steel bar and the steel structure for welding, if there are edges and corners between the steel bar and the steel structure, the pulley 65 will The H-shaped mounting frame 64 is pushed to move upward, and at the same time, the H-shaped mounting frame 64 drives the laser welding head 63 to slide into the inner cavity of the fixing tube 61 and squeeze the spring 62, so as to adaptively adjust the distance between the laser welding head 63 and the steel bar and the steel structure, thereby solving the problem that the existing spherical grid shell steel structure fixing device usually manually controls the welding equipment around the joint between the steel bar and the steel structure after the steel bar and the steel structure are connected, which makes it difficult to accurately control the distance between the welding head and the steel bar to be welded, which easily causes the steel bar to be welded through, and also affects the load-bearing capacity of the entire spherical grid shell steel structure.

[0056] Working principle: when constructing the spherical lattice shell steel structure, the first U-shaped rotating frame 2 is installed with the steel structure, and the knob 27 is twisted to rotate the transmission bevel gear 7, and the transmission bevel gear 7 is meshed with the transmission driven bevel gear 58, thereby driving the cylinder 57 to rotate, and then driving the second bevel gear 56 to rotate. During the rotation process, the second bevel gear 56 will mesh with the transmission first bevel gear 54 to rotate, and at the same time drive the bidirectional threaded rod 53 to rotate, and then the threaded transmission telescopic rod 52 slides into the inner cavity of the storage groove 55, and the telescopic rod 52 drives the L-shaped clamping frame 51 to clamp and fix the steel structure, and then the steel structure to be welded is fixed. The connected steel pipe or steel bar is placed outside the second U-shaped rotating frame 4, and the knob 27 is twisted to rotate the transmission bevel gear 7, and the transmission bevel gear 7 meshes with the transmission driven bevel gear 58, thereby driving the cylinder 57 to rotate, and then driving the second bevel gear 56 to rotate. During the rotation process, the second bevel gear 56 will mesh with the transmission first bevel gear 54 to rotate, and at the same time drive the two-way threaded rod 53 to rotate, and the threaded transmission telescopic rod 52 slides into the inner cavity of the storage groove 55, and then the telescopic rod 52 drives the L-shaped clamping frame 51 to move synchronously, thereby clamping and fixing the steel pipe or steel bar, thereby completing the fixing work of the steel structure;

[0057] After the first U-shaped rotating frame 2 is installed and fixed to the steel structure, the card block 31 is pushed to slide in the inner cavity of the groove 29 by pressing the push column 32, and then the micro spring 30 is squeezed to disengage the ratchet 9, and then the bracket 1 is moved to rotate outside the rotating column 10 to adjust the angle. After the adjustment is completed, the push column 32 is released, and the card block 31 is bounced by the micro spring 30 to slide into the inner cavity of the ratchet 9 for engagement, so as to fix the first U-shaped rotating frame 2, and then the steel pipe is clamped and fixed by the second U-shaped rotating frame 4, and the card block 31 is pushed to slide in the inner cavity of the groove 29 by the push column 32, and then the micro spring 30 is squeezed to disengage the ratchet 9, and then the steel pipe is moved to drive the second U-shaped rotating frame 4 to rotate outside the connecting block 18 to adjust the angle, and at the same time, the electric push rod 3 is started to pull the connecting block 18 to drive the steel pipe to move close to the steel structure, and the second U-shaped rotating frame 4 is moved to fine-tune the angle between the steel pipe and the steel structure after docking, so as to ensure the engineering quality of the spherical lattice shell steel structure;

[0058] After the steel bar and the steel structure are butt-jointed and fixed, the semicircular fixing frame 20 is driven to move upward by starting the electric telescopic frame 19, and the semicircular fixing frame 20 drives the semicircular rotating frame 26 to slide to the outside of the welded part between the steel bar and the steel structure, and then the servo motor is started to drive the second pulley 28 to rotate, and the second pulley 28 drives the belt 23 to rotate, and then drives the first pulley 24 to rotate, and the first pulley 24 will drive the two toothed discs 22 to rotate during the rotation process, and the two toothed discs 22 will mesh with the semicircular gear ring 25 to rotate, and the semicircular gear ring 25 will drive the semicircular gear ring 25 to rotate. After the rotating frame 26 rotates sixty degrees, the two toothed discs 22 alternately mesh with each other to drive the semicircular gear ring 25 to drive the semicircular rotating frame 26 to rotate in a ring shape, and the inner cavity of the semicircular rotating frame 26 is provided with a welding mechanism, and then during the rotation process of the semicircular rotating frame 26, the welding mechanism is used to weld and fix the steel bar and the steel structure, and before the steel bar and the steel structure are welded and fixed, the electric push rod 3 is used to cooperate with the second U-shaped rotating frame 4 to drive the steel bar and the steel structure to dock, and the steel bar and the steel structure are adjusted to ensure that the welding position is in the inner cavity of the semicircular rotating frame 26 to improve the welding quality;

[0059] When welding the joint between the steel bar and the steel structure, the semicircular rotating frame 26 is driven to slide to the outside of the joint between the steel bar and the steel structure to be welded, and the semicircular rotating frame 26 drives the laser welding head 63 to approach the joint between the steel bar and the steel structure to be welded, and at the same time, the H-shaped mounting frame 64 drives the pulley 65 to fit the surface of the steel bar and the steel structure, thereby ensuring the distance between the laser welding head 63 and the joint between the steel bar and the steel structure to be welded, and ensuring the welding accuracy. Then, when the semicircular rotating frame 26 drives the laser welding head 63 to rotate and weld around the steel bar and the steel structure in a circular shape, if there are edges and corners between the steel bar and the steel structure, the pulley 65 will push the H-shaped mounting frame 64 to move upward, and at the same time, the H-shaped mounting frame 64 drives the laser welding head 63 to slide into the inner cavity of the fixed cylinder 61 and squeeze the spring 62, thereby adaptively adjusting the distance between the laser welding head 63 and the steel bar and the steel structure.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A spherical lattice shell steel structure fixing device, characterized in that: The invention comprises a bracket (1), one end of which is rotatably connected to a first U-shaped rotating frame (2), one side of which is mounted an electric push rod (3), a piston rod end of which is fixedly connected to a connecting block (18) for driving the connecting block (18) to extend and retract to pull a traction steel structure, the outside of which is rotatably connected to a second U-shaped rotating frame (4), and the insides of the first U-shaped rotating frame (2) and the second U-shaped rotating frame (4) are both provided with a steel frame clamping mechanism (5); The steel frame clamping mechanism (5) includes two receiving grooves (55) opened inside the first U-shaped rotating frame (2), and the inner cavities of the two receiving grooves (55) are symmetrically slidably connected with four telescopic rods (52), and two of them form a group, and one end of each group of telescopic rods (52) is fixedly connected to an L-shaped clamping frame (51) for clamping the steel structure, and the second U-shaped rotating frame (4) is installed in the same manner.

2. A spherical lattice shell steel structure fixing device according to claim 1, characterized in that: The first U-shaped rotating frame (2) and the second U-shaped rotating frame (4) are both provided with a storage groove (59), the inner cavity of the storage groove (59) is rotatably connected to a cylinder (57), and the two ends of the cylinder (57) are located in the inner cavity of the storage groove (55) and fixedly connected to a second bevel gear (56), the second bevel gear (56) is meshingly connected to the first bevel gear (54), the inner portion of the first bevel gear (54) is fixedly connected to a bidirectional threaded rod (53), and the bidirectional threaded rod (53) is threadedly connected to the telescopic rod (52).

3. A spherical lattice shell steel structure fixing device according to claim 2, characterized in that: A driven bevel gear (58) is fixedly connected to the outside of the cylinder (57); knobs (27) are rotatably connected to the lower end surfaces of the first U-shaped rotating frame (2) and the second U-shaped rotating frame (4); and a transmission bevel gear (7) is fixedly connected to one end of the knob (27) located in the inner cavity of the storage tank (59); and the transmission bevel gear (7) is meshingly connected to the driven bevel gear (58).

4. The spherical lattice shell steel structure fixing device according to claim 1 is characterized in that: The front and rear end surfaces of the first U-shaped rotating frame (2) and the second U-shaped rotating frame (4) are both provided with slots (17); the upper end surfaces of the first U-shaped rotating frame (2) and the second U-shaped rotating frame (4) are both slidably connected with sliding columns (12); the upper ends of the sliding columns (12) are fixedly connected with abutment plates (11); one end of the sliding columns (12) located in the inner cavity of the storage tank (59) is fixedly connected with a fixing block (13), and the lower end surface of the fixing block (13) is arranged in a semicircular arc shape.

5. A spherical lattice shell steel structure fixing device according to claim 4, characterized in that: Two springs (14) are fixedly connected to the upper end surface of the fixing block (13), and one end of the two springs (14) is fixedly connected to the abutment plate (11). A mounting plate (15) is installed between the L-shaped clamping frames (51). A fixing plug-in block (16) is fixedly connected to one end surface of the mounting plate (15). The fixing plug-in block (16) is arranged in a triangular shape, and one end of the fixing plug-in block (16) is arranged in a semicircular arc shape for lifting the fixing block (13). The fixing plug-in block (16) is slidably connected to the slot (17).

6. A spherical lattice shell steel structure fixing device according to claim 1, characterized in that: A ratchet mechanism is provided inside the bracket (1) and the connecting block (18), and the ratchet mechanism comprises a rotating groove (8) opened in one end of the bracket (1), a rotating column (10) is rotatably connected to the inner cavity of the rotating groove (8), and the rotating column (10) is fixedly connected to the first U-shaped rotating frame (2), and a ratchet (9) is fixedly connected to the inner cavity of the rotating groove (8).

7. A spherical lattice shell steel structure fixing device according to claim 6, characterized in that: A groove (29) is provided inside the rotating column (10), a micro spring (30) is fixedly connected to the inner wall of the groove (29), one end of the micro spring (30) is fixedly connected to a clamping block (31), one end of the clamping block (31) is fixedly connected to a pushing column (32) for driving the clamping block (31) to disengage from the ratchet wheel (9), and the interior of the connecting block (18) is arranged in the same manner.

8. The spherical lattice shell steel structure fixing device according to claim 1 is characterized by: An electric telescopic frame (19) is arranged inside the upper end surface of the bracket (1), and a semicircular fixed frame (20) is fixedly connected to the piston rod end of the electric telescopic frame (19), and a semicircular rotating frame (26) is rotatably connected inside the semicircular fixed frame (20), and balls are evenly arranged on the inner wall of the semicircular fixed frame (20) for reducing the friction with the semicircular rotating frame (26), and two second pulleys (28) are rotatably connected to the inner cavity of the electric telescopic frame (19), and one of the second pulleys (28) is externally connected to a belt (23), and the other second pulley (28) is arranged above the belt (23) for limiting the belt (23), and a servo motor is arranged inside one side of the electric telescopic frame (19), and the output shaft of the servo motor is fixedly connected to the second pulley (28).

9. A spherical lattice shell steel structure fixing device according to claim 8, characterized in that: Both end surfaces of the semicircular rotating frame (26) are fixedly connected with semicircular gear rings (25); two support frames (21) are symmetrically installed at both ends of the semicircular fixed frame (20); and the inner cavities of the two support frames (21) are rotatably connected with first pulleys (24); the first pulleys (24) are transmission-connected with belts (23); both ends of the first pulley (24) pass through the support frames (21) and are fixedly connected with toothed discs (22); and the toothed discs (22) are meshingly connected with the semicircular gear rings (25).

10. A spherical lattice shell steel structure fixing device according to claim 8, characterized in that: An automatic welding adjustment component (6) is arranged inside the semicircular rotating frame (26), and the automatic welding adjustment component (6) comprises a fixed cylinder (61) fixedly connected to the outside of the semicircular rotating frame (26), a spring (62) is fixedly connected to the upper wall of the inner cavity of the fixed cylinder (61), one end of the spring (62) is fixedly connected to a laser welding head (63), the laser welding head (63) is located outside the inner cavity of the semicircular rotating frame (26) and is installed with an H-shaped mounting frame (64), both ends of the H-shaped mounting frame (64) are rotatably connected with pulleys (65), one end of the laser welding head (63) located in the inner cavity of the fixed cylinder (61) is electrically connected to a wire (66), a battery is arranged outside the semicircular rotating frame (26), and the wire (66) is electrically connected to the battery for supplying power to the laser welding head (63).

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