Space hexagon variable cross-section bending and torsion steel box rapid splicing and welding equipment

Abstract

The application belongs to the technical field of bridge construction, and particularly relates to a space hexagonal variable cross-section bending and torsion steel box fast splicing and welding equipment, which comprises a steel box, the outer surface of the steel box is provided with a walking device, a deflection device and a welding device. The space hexagonal variable cross-section bending and torsion steel box fast splicing and welding equipment can conveniently drive the deflection device and the welding device to walk along the curved steel box, so as to complete butt joint and welding. After the rack frame is engaged with the gear set, the rotation of the gear set can drive the rack frame to move, so that the driving roller assembly is attached to the outer surface of the steel box, the support frame is sleeved on the outer surface of the steel box, and the support frame can be fixed on the outer surface of the steel box after contacting the two sides of the steel box. The driving roller assembly is driven to rotate by the motor through the gear set, so that the support frame can move on the outer surface of the steel box, thereby reducing the butt joint time and enabling quick butt joint.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a rapid splicing and welding equipment for spatial hexagonal variable cross-section bending and twisting steel boxes. Background Technology

[0002] Spatial hexagonal variable cross-section bending-torsion steel box is a complex steel structure that is typically used in long-span bridges, irregularly shaped buildings, or specially designed public facilities. Its characteristics include complex geometry, combining features such as cross-sectional changes, spatial bending, and torsion, which places high demands on design, manufacturing, and construction.

[0003] The existing main arch ribs of the bridge consist of two steel arch ribs per span. The seven spans of arch ribs have smooth lines, and the center lines and outlines of the arch ribs are spatial spline curves. The arch ribs all adopt a hexagonal steel box structure with a rounded decorative plate on top. The main arch ribs are continuous arcs. The hexagonal variable cross-section steel box girders are joined in the air, and the center of gravity is difficult to determine. Multiple adjustments to the joining angle are required, making precise joining impossible. Traditional trial assembly relies on experience for correction. Deviations between the BIM model and the actual scene require multiple cycles of hoisting, measurement, and adjustment, extending the construction period. After the joining is completed, manual welding is required. Welding the arc lines is difficult and the weld trajectory is complex. The joint of the arc steel box is a three-dimensional spatial curve, and manual welding cannot guarantee the consistency of penetration depth and the smoothness of the weld. High-altitude welding depends on manual operation, and the weld quality is limited by the skill level of the workers. Summary of the Invention

[0004] Given that existing steel box splicing methods cannot achieve precise alignment, traditional trial assembly relies on experience for correction, and empty welding depends on manual operation, with weld quality limited by the skill level of workers, this invention proposes a rapid splicing and welding device for spatial hexagonal variable cross-section bent and twisted steel boxes.

[0005] The present invention proposes a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bending and twisting steel box, which includes a steel box, and the outer surface of the steel box is provided with a walking device, a deflection device and a welding device.

[0006] The walking device is located on the outer surface of the steel box and drives the deflection device and the welding device to move on the outer surface of the steel box. The walking device includes an adjustment mechanism and a moving mechanism, and the adjustment mechanism adjusts the position of the moving mechanism.

[0007] The deflection device is located on the outer surface of the walking device and adjusts the position of the walking devices on both sides. The deflection device includes a deflection mechanism and a self-locking mechanism. The deflection mechanism drives the walking device to deflect up and down, and the self-locking mechanism locks the deflection mechanism.

[0008] The welding device is located on the outer surface of the walking device and welds the spliced ​​steel boxes. The welding device includes a bypass mechanism and a welding assembly. The bypass mechanism drives the welding assembly to move around the steel box, and the welding assembly welds two adjacent steel boxes.

[0009] Preferably, the adjustment mechanism includes a support frame disposed on the outer surface of the steel box. A control housing is fixedly mounted on the upper surface of the support frame. A control motor is fixedly mounted on the inner wall of the control housing. A drive rod with a bevel gear is rotatably connected to the outer surface of the control housing via a bearing. One end of one drive rod is fixedly mounted to one end of the output shaft of the control motor via a coupling. One end of both drive rods is connected by a chain and a sprocket for transmission. A gear set with a bevel gear is rotatably connected to the outer surface of the support frame via a bearing seat. The bevel gear of the gear set meshes with the bevel gear of the drive rod.

[0010] Through the above technical solution, after the motor drives the drive rod to rotate, the drive rod drives another drive rod to rotate through the cooperation of the sprocket and chain, and the gear set can be driven to rotate through the transmission of the bevel gear.

[0011] Preferably, the moving mechanism includes a rack frame, the outer surface of which is slidably inserted into the inner wall of the support frame, the rack of which meshes with the gear of the gear set, and a drive roller assembly is fixedly installed on the outer surface of the rack frame.

[0012] Through the above technical solution, after the rack and pinion mesh with the gear set, the rotation of the gear set can drive the rack and pinion to move, so that the drive roller assembly is in contact with the outer surface of the steel box, making it easy for the support frame to be sleeved on the outer surface of the steel box. After contacting the two sides of the steel box, the support frame can be fixed on the outer surface of the steel box. The drive roller assembly is driven by a motor through the gear set to rotate the roller, so that the support frame can move on the outer surface of the steel box.

[0013] Preferably, the deflection mechanism includes a deflection connecting plate, one end of which is fixedly installed to the outer surface of the support frame. A deflection housing is hinged to the outer surface of the deflection connecting plate via a pin. The outer surface of the deflection housing is fixedly installed to the outer surface of another support frame. A deflection connecting block assembly is hinged to the outer surface of the deflection housing via a pin. The deflection connecting block assembly is composed of multiple connecting blocks hinged end-to-end. One end of the deflection connecting block assembly is hinged to the outer surface of the support frame via a pin.

[0014] The above technical solution facilitates the connection between two sets of support frames through the deflection connecting plate, and also facilitates the vertical deflection of the support frames to connect with the docking steel box. Multiple deflection connecting block groups can facilitate the connection between support frames without affecting the deflection of the support frames, and facilitate the movement of multiple sets of moving mechanisms on the arc-shaped steel box.

[0015] Preferably, a winding motor is fixedly installed on the upper surface of the deflection housing, a wire roller is rotatably connected to the inner wall of the deflection housing, one end of the deflection motor is fixedly installed to one end of the wire roller, a steel wire rope is fixedly installed on the outer surface of the wire roller, the steel wire rope is wound around the outer surface of the wire roller, an auxiliary roller is rotatably connected to the inner wall of the deflection housing, one end of the steel wire rope passes around the outer surface of the auxiliary roller and then passes through one side of the deflection connecting block assembly and is fixedly installed to the outer surface of the support frame.

[0016] Through the above technical solution, the wire roller can drive the wire rope to wind up through the winding motor, so that the flexible deflection connecting block group is tightened into a rigid state. After the three sets of deflection connecting block groups are tightened to different degrees, the connected support frame can deflect up and down to different degrees, so that the tilt of the support frame can be adjusted according to the position of the docked steel box. The release of the wire rope facilitates the movement of the support frame after the deflection connecting block group becomes flexible.

[0017] Preferably, the self-locking mechanism includes a self-locking housing, which is fixedly installed on the inner wall of the deflection housing. A main locking block with a rack is slidably inserted into the inner wall of the self-locking housing. A return spring is fixedly installed on the outer surface of the main locking block, with one end of the return spring fixedly installed to the inner wall of the self-locking housing. The outer surface of the wire rope contacts the outer surface of the main locking block. A secondary locking block with a rack is slidably inserted into the inner wall of the self-locking housing, with the inner wall of the secondary locking block slidably inserted into the outer surface of the main locking block. A transmission gear is rotatably connected to the inner wall of the self-locking housing via a bearing, and the transmission gear meshes with the racks of the main locking block and the secondary locking block, respectively.

[0018] Through the above technical solution, in order to self-lock the wire rope, the wire rope is clamped by the relative movement between the main locking block and the auxiliary locking block. The tooth groove between the main locking block and the auxiliary locking block can increase the friction and increase the clamping force. After the rack of the main locking block moves, it drives the rack of the auxiliary locking block to move through the transmission gear, so that the main locking block and the auxiliary locking block can move relative to each other or in opposite directions.

[0019] Preferably, a wedge is fixedly installed at one end of the main locking block, a push block with a rack is slidably inserted into the inner wall of the self-locking housing, the outer surface of the push block is slidably connected to the outer surface of the wedge, and a transmission rod with a gear is rotatably connected to the inner wall of the deflection housing through a bearing, the gear of the transmission rod meshing with the rack of the push block.

[0020] Through the above technical solution, in order to move the main locking block, the wedge block can be moved after the pushing block rises. The wedge block pushes the main locking block to squeeze the spring and release the wire rope from the fixation.

[0021] Preferably, a support roller is rotatably connected to the inner wall of the deflection housing, and a rotating gear ring is slidably connected to the outer surface of the support roller. The rotating gear ring meshes with the gear of the transmission rod. A rotary motor is fixedly installed on the inner wall of the deflection housing, and one end of the output shaft of the rotary motor meshes with the rotating gear ring through a gear.

[0022] The above technical solution enables a rotary motor to drive a rotating gear ring to rotate on a support roller, which in turn drives a transmission rod to rotate, causing the push block to rise and fall, thus unlocking the wire rope.

[0023] Preferably, the retraction mechanism includes a mounting frame, which is fixedly mounted on the outer surface of the intermediate support frame. A retraction gear ring is slidably inserted into the inner wall of the mounting frame, and a retraction motor is fixedly mounted on the outer surface of the mounting frame. The output shaft of the retraction motor meshes with the retraction gear through a gear.

[0024] With the above technical solution, in order to weld the steel box, a winding toothed ring rotates on the mounting frame, and the winding toothed ring drives the welding assembly to rotate, welding around the weld seam.

[0025] Preferably, the welding assembly includes a connecting frame, a robotic arm, and a welding torch assembly. The connecting frame is fixedly mounted on the outer surface of the revolving toothed ring, the robotic arm is fixedly mounted on the outer surface of the connecting frame, and the welding torch assembly is fixedly mounted on one end of the robotic arm.

[0026] The above technical solution allows the robotic arm to adjust its position relative to the weld seam, facilitating precise welding by the welding torch assembly.

[0027] The beneficial effects of this invention are as follows:

[0028] 1. By setting up a walking device, the deflection device and welding device can be easily driven to move along the curved steel box, thereby completing the docking and welding. After the rack and pinion meshes with the gear set, the rotation of the gear set can drive the rack and pinion to move, so that the drive roller assembly is in contact with the outer surface of the steel box. This makes it easy for the support frame to fit onto the outer surface of the steel box. After contacting the two sides of the steel box, the support frame can be fixed on the outer surface of the steel box. The drive roller assembly is driven by a motor through the gear set to rotate the rollers, so that the support frame can move on the outer surface of the steel box, thereby reducing docking time and enabling rapid docking. This solves the technical problem that existing steel box splicing cannot achieve precise docking and that traditional trial assembly relies on experience for correction.

[0029] 2. By setting up a deflection device, rapid docking and welding can be facilitated. The wire roller, driven by the winding motor, can drive the wire rope to wind up, thereby tightening the flexible deflection connecting block group into a rigid state. After the three sets of deflection connecting block groups are tightened to different degrees, the connected support frame can deflect up and down to different degrees. This allows the tilt of the support frame to be adjusted according to the position of the docked steel box. The release of the wire rope facilitates the movement of the support frame after the deflection connecting block group becomes flexible. Thus, the cooperation of the deflection connecting block group and the wire rope can drive the walking device at both ends to adjust the angle. The welding device in the middle completes the welding of the joint. This solves the technical problems of existing steel box splicing, which cannot accurately dock, relies on manual operation for empty welding, and the weld quality is limited by the skill level of workers. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a rapid splicing and welding device for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention;

[0031] Figure 2 This is a perspective view of the support frame structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention.

[0032] Figure 3 This is a perspective view of the rack frame structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention.

[0033] Figure 4 This is a perspective view of the deflection shell structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention.

[0034] Figure 5 This is a perspective view of the deflection connection block assembly structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention.

[0035] Figure 6This is a perspective view of the winding motor structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention.

[0036] Figure 7 This is a perspective view of the main locking block structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention.

[0037] Figure 8 This is a perspective view of the secondary locking block structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention.

[0038] Figure 9 This is a perspective view of the transmission gear structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention.

[0039] Figure 10 This is a perspective view of the rotary motor structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention.

[0040] Figure 11 This is a perspective view of the mounting frame structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention.

[0041] Figure 12 This is a perspective view of the bypass toothed ring structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bent and twisted steel box proposed in this invention.

[0042] Figure 13 This is a perspective view of the robotic arm structure of a rapid splicing and welding equipment for a spatial hexagonal variable cross-section bending and twisting steel box proposed in this invention.

[0043] In the diagram: 1. Steel box; 2. Support frame; 21. Control housing; 22. Control motor; 23. Drive rod; 24. Gear set; 3. Rack frame; 31. Drive roller assembly; 4. Deflection connecting plate; 41. Deflection housing; 42. Deflection connecting block assembly; 43. Rewinding motor; 44. Wire roller; 45. Wire rope; 46. Auxiliary roller; 5. Self-locking housing; 51. Main locking block; 52. Return spring; 53. Secondary locking block; 54. Transmission gear; 55. Wedge block; 56. Push block; 57. Transmission rod; 6. Support roller; 61. Rotating gear ring; 62. Rotating motor; 7. Mounting frame; 71. Circulating gear ring; 72. Circulating motor; 8. Connecting frame; 81. Robotic arm; 82. Welding torch assembly. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0045] Reference Figures 1-13 A rapid splicing and welding equipment for a spatial hexagonal variable cross-section bending and twisting steel box includes a steel box 1, and the outer surface of the steel box 1 is provided with a walking device, a deflection device and a welding device.

[0046] like Figures 2-3 As shown, in order to drive the deflection device and the welding device to move on the steel box 1, the walking device is located on the outer surface of the steel box 1 and drives the deflection device and the welding device to move on the outer surface of the steel box 1. The walking device includes an adjustment mechanism and a moving mechanism, and the adjustment mechanism adjusts the position of the moving mechanism.

[0047] Specifically, in order to facilitate the movement of the steel box 1 along the curve and maintain the stability of the deflection device and the welding device, the adjustment mechanism includes a support frame 2. The support frame 2 is set on the outer surface of the steel box 1. A control housing 21 is fixedly installed on the upper surface of the support frame 2. A control motor 22 is fixedly installed on the inner wall of the control housing 21. A drive rod 23 with a bevel gear is rotatably connected to the outer surface of the control housing 21 through a bearing. One end of one drive rod 23 is fixedly installed to one end of the output shaft of the control motor 22 through a coupling. One end of two drive rods 23 is connected to the two drive rods 23 through a chain and a sprocket. A gear set 24 with a bevel gear is rotatably connected to the outer surface of the support frame 2 through a bearing seat. The bevel gear of the gear set 24 meshes with the bevel gear of the drive rod 23.

[0048] Specifically, in order to move on the surface of the steel box 1, the moving mechanism includes a rack frame 3. The outer surface of the rack frame 3 is slidably inserted into the inner wall of the support frame 2. The rack of the rack frame 3 meshes with the gear of the gear set 24. A drive roller assembly 31 is fixedly installed on the outer surface of the rack frame 3. By moving the rack frame 3, the steel box 1 is clamped, so that the support frame 2 is located on the outer surface of the steel box 1. At the same time, during docking, the rack frame 3 moves inward synchronously, pushing the offset steel box 1 to keep it aligned with the docking steel box 1. The drive roller assembly 31 includes a frame, a motor mounted on the frame, a gear set 24 and rollers. After the drive roller assembly 31, which is distributed in a ring array, moves relative to each other, it can abut against the two sides of the hexagonal steel box 1, thereby maintaining the stability of the support frame 2. At the same time, the rotation of the rollers in the drive roller assembly 31 can drive the support frame 2 to move on the outer surface of the steel box 1.

[0049] like Figures 4-10 As shown, in order to drive the walking device to adjust the angle, the deflection device is located on the outer surface of the walking device and adjusts the position of the walking devices on both sides. The deflection device includes a deflection mechanism and a self-locking mechanism. The deflection mechanism drives the walking device to deflect up and down, and the self-locking mechanism locks the deflection mechanism.

[0050] Specifically, to facilitate the vertical adjustment of the walking device, the deflection mechanism includes a deflection connecting plate 4. One end of the deflection connecting plate 4 is fixedly installed on the outer surface of the support frame 2. The outer surface of the deflection connecting plate 4 is hinged to a deflection housing 41 by a pin, so that the support frame 2 can deflect around the deflection housing 41. The outer surface of the deflection housing 41 is fixedly installed on the outer surface of another support frame 2. The outer surface of the deflection housing 41 is hinged to a deflection connecting block assembly 42 by a pin. The deflection connecting block assembly 42 is composed of multiple connecting blocks that are hinged end to end. One end of the deflection connecting block assembly 42 is hinged to the outer surface of the support frame 2 by a pin.

[0051] Specifically, in order to adjust the angle of the support frame 2 by driving the deflection connecting block assembly 42, a winding motor 43 is fixedly installed on the upper surface of the deflection housing 41, a wire roller 44 is rotatably connected to the inner wall of the deflection housing 41, one end of the deflection motor is fixedly installed to one end of the wire roller 44, a steel wire rope 45 is fixedly installed on the outer surface of the wire roller 44, the steel wire rope 45 is wound around the outer surface of the wire roller 44, an auxiliary roller 46 is rotatably connected to the inner wall of the deflection housing 41, one end of the steel wire rope 45 passes around the outer surface of the auxiliary roller 46 and passes through one side of the deflection connecting block assembly 42 and is fixedly installed to the outer surface of the support frame 2.

[0052] Specifically, in order to self-lock the wire rope 45, the self-locking mechanism includes a self-locking housing 5, which is fixedly installed on the inner wall of the deflection housing 41. A main locking block 51 with a rack is slidably inserted into the inner wall of the self-locking housing 5. A return spring 52 is fixedly installed on the outer surface of the main locking block 51. One end of the return spring 52 is fixedly installed with the inner wall of the self-locking housing 5. The outer surface of the wire rope 45 is in contact with the outer surface of the main locking block 51. A secondary locking block 53 with a rack is slidably inserted into the inner wall of the self-locking housing 5. Both the main locking block 51 and the secondary locking block 53 have toothed grooves to increase the friction with the wire rope 45. The inner wall of the secondary locking block 53 is slidably inserted into the outer surface of the main locking block 51. A transmission gear 54 is rotatably connected to the inner wall of the self-locking housing 5 through a bearing. The transmission gear 54 meshes with the rack of the main locking block 51 and the rack of the secondary locking block 53, respectively.

[0053] Specifically, in order to move the main locking block 51, a wedge block 55 is fixedly installed at one end of the main locking block 51, and a push block 56 with a rack is slidably inserted into the inner wall of the self-locking housing 5. The outer surface of the push block 56 is slidably connected to the outer surface of the wedge block 55. The inner wall of the deflection housing 41 is rotatably connected to a transmission rod 57 with a gear through a bearing. The gear of the transmission rod 57 meshes with the rack of the push block 56.

[0054] Specifically, in order to drive the push block 56 to automatically lift and lower, the inner wall of the deflection housing 41 is rotatably connected to the support roller 6, the outer surface of the support roller 6 is slidably connected to the rotating gear ring 61, the rotating gear ring 61 meshes with the gear of the transmission rod 57, and the inner wall of the deflection housing 41 is fixedly installed with the rotary motor 62, one end of the output shaft of the rotary motor 62 meshes with the rotating gear ring 61 through the gear.

[0055] like Figures 11-13 As shown, in order to weld adjacent steel boxes 1, the welding device is located on the outer surface of the walking device and welds the spliced ​​steel boxes 1. The welding device includes a bypass mechanism and a welding assembly. The bypass mechanism drives the welding assembly to move around the steel box 1, and the welding assembly welds the two adjacent steel boxes 1.

[0056] Specifically, in order to move the welding assembly around the weld seam, the revolving mechanism includes a mounting frame 7, which is fixedly installed on the outer surface of the intermediate support frame 2. A revolving gear ring 71 is slidably inserted into the inner wall of the mounting frame 7, and a revolving motor 72 is fixedly installed on the outer surface of the mounting frame 7. The output shaft of the revolving motor 72 meshes with the revolving gear through a gear.

[0057] Specifically, the welding assembly includes a connecting frame 8, a robotic arm 81, and a welding torch assembly 82. The connecting frame 8 is fixedly installed on the outer surface of the revolving toothed ring 71, the robotic arm 81 is fixedly installed on the outer surface of the connecting frame 8, and the welding torch assembly 82 is fixedly installed on one end of the robotic arm 81. The welding torch assembly 82 includes a welding torch assembly, a wire feeding mechanism, a wire straightening mechanism, and a windproof mechanism, etc.

[0058] Working principle: When connecting the arch ribs of a bridge, the support frame 2 is lifted and fitted onto the outer surface of the first steel box 1 after splicing. The control motor 22 inside the control housing 21 on the support frame 2 is activated, driving one drive rod 23 to rotate. This rotation, transmitted through a chain and sprocket, drives another drive rod 23 to rotate. The bevel gear on the drive rod 23 drives the gear set 24 to rotate, which in turn moves the rack frame 3. After the rack frame 3 moves, it pushes the drive roller assembly 31 to move. Once the drive roller assembly 31 contacts the two surfaces of the steel box 1... When the support frame 2 is mounted on the steel box 1, and the next section of the steel box 1 is moved to one end of the steel box 1 to be spliced ​​by the crane, the rotary motor 62 inside the deflection housing 41 starts and drives the rotary gear ring 61 on the support roller 6 to rotate, which drives multiple transmission rods 57 to rotate. After the transmission rods 57 drive the push block 56 to rise, the push block 56 pushes the wedge block 55 to move, which pushes the main locking block 51 to move inside the self-locking housing 5. The return spring 52 is compressed, and the rack of the main locking block 51 drives the secondary locking block 53 to move through the transmission gear 54. The main locking block 51 and the secondary locking block 53 move in opposite directions, releasing the clamping of the wire rope 45.

[0059] The winding motor 43 drives the wire roller 44 to rotate, and the wire roller 44 drives the corresponding wire rope 45 to wind up. After the deflection connecting block group 42 is tightened, it becomes hard from a soft state. Through the different winding degrees of multiple wire ropes 45, the support frame 2 is deflected. After the support frame 2 is deflected towards the steel box 1 to be docked, the drive roller assembly 31 starts. After the deflected support frame 2 is sleeved on the outside of the steel box 1, the drive roller assembly 31 stops rolling. The drive roller assembly 31 on the support frame 2 on the outside of the suspended steel box 1 is located on both sides of the steel box 1. After the drive roller assembly 31 moves relative to each other, it clamps the outside of the steel box 1, so that the steel box 1 can be clamped. Through the winding adjustment of the wire rope 45 and the cooperation of the drive roller assembly 31, the support frame 2 on the suspended steel box 1 moves and deflects to adjust the angle of the clamped steel box 1, so that one end of the steel box 1 docks with one end of the fixed steel box 1.

[0060] After the steel box 1 is fixed and the entire arch rib is erected, the support frames 2 on both sides are positioned on both sides of the weld seam to be welded, so that the mounting frame 7 is positioned above the weld seam. The circling toothed ring 71 inside the mounting frame 7 rotates when the circling motor 72 is started, driving the welding gun assembly 82 to weld around the weld seam. The robotic arm 81 adjusts the position of the welding gun assembly 82.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rapid splicing and welding equipment for a spatial hexagonal variable cross-section bending and twisting steel box, comprising a steel box (1), characterized in that: The outer surface of the steel box (1) is provided with a walking device, a deflection device and a welding device; The walking device is located on the outer surface of the steel box (1) and drives the deflection device and the welding device to move on the outer surface of the steel box (1). The walking device includes an adjustment mechanism and a moving mechanism. The adjustment mechanism adjusts the position of the moving mechanism. The adjustment mechanism includes a support frame (2), which is disposed on the outer surface of the steel box (1); The deflection device is located on the outer surface of the walking device and adjusts the position of the walking devices on both sides. The deflection device includes a deflection mechanism and a self-locking mechanism. The deflection mechanism drives the walking device to deflect up and down, and the self-locking mechanism self-locks the deflection mechanism. The deflection mechanism includes a deflection connecting plate (4), one end of which is fixedly installed on the outer surface of the support frame (2). A deflection shell (41) is hinged to the outer surface of the deflection connecting plate (4) via a pin. The outer surface of the deflection shell (41) is fixedly installed on the outer surface of another support frame (2). A deflection connecting block assembly (42) is hinged to the outer surface of the deflection shell (41) via a pin. The deflection connecting block assembly (42) is composed of multiple connecting blocks hinged end to end. One end of the deflection connecting block assembly (42) is hinged to the outer surface of the support frame (2) via a pin. A winding motor (43) is fixedly installed on the upper surface of the deflection housing (41). A wire roller (44) is rotatably connected to the inner wall of the deflection housing (41). One end of the winding motor (43) is fixedly installed to one end of the wire roller (44). A wire rope (45) is fixedly installed on the outer surface of the wire roller (44). The wire rope (45) is wound around the outer surface of the wire roller (44). An auxiliary roller (46) is rotatably connected to the inner wall of the deflection housing (41). One end of the wire rope (45) passes around the outer surface of the auxiliary roller (46) and then passes through one side of the deflection connecting block group (42) and is fixedly installed to the outer surface of the support frame (2). The self-locking mechanism includes a self-locking housing (5), which is fixedly installed on the inner wall of the deflection housing (41). A main locking block (51) with a rack is slidably inserted into the inner wall of the self-locking housing (5). A return spring (52) is fixedly installed on the outer surface of the main locking block (51). One end of the return spring (52) is fixedly installed on the inner wall of the self-locking housing (5). The outer surface of the wire rope (45) is in contact with the outer surface of the main locking block (51). A secondary locking block (53) with a rack is slidably inserted into the inner wall of the self-locking housing (5). The inner wall of the secondary locking block (53) is slidably inserted into the outer surface of the main locking block (51). A transmission gear (54) is rotatably connected to the inner wall of the self-locking housing (5) through a bearing. The transmission gear (54) meshes with the rack of the main locking block (51) and the rack of the secondary locking block (53) respectively. The welding device is located on the outer surface of the walking device and welds the spliced ​​steel boxes (1). The welding device includes a bypass mechanism and a welding assembly. The bypass mechanism drives the welding assembly to move around the steel box (1). The welding assembly welds two adjacent steel boxes (1).

2. The rapid splicing and welding equipment for spatial hexagonal variable cross-section bending and twisting steel boxes according to claim 1, characterized in that: A control housing (21) is fixedly installed on the upper surface of the support frame (2). A control motor (22) is fixedly installed on the inner wall of the control housing (21). A drive rod (23) with a bevel gear is rotatably connected to the outer surface of the control housing (21) through a bearing. One end of one drive rod (23) is fixedly installed to one end of the output shaft of the control motor (22) through a coupling. One end of two drive rods (23) is connected to each other through a chain and a sprocket. A gear set (24) with a bevel gear is rotatably connected to the outer surface of the support frame (2) through a bearing seat. The bevel gear of the gear set (24) meshes with the bevel gear of the drive rod (23).

3. The rapid splicing and welding equipment for spatial hexagonal variable cross-section bending and twisting steel boxes according to claim 2, characterized in that: The moving mechanism includes a rack frame (3), the outer surface of which is slidably inserted into the inner wall of the support frame (2), the rack of the rack frame (3) meshes with the gear of the gear set (24), and a drive roller assembly (31) is fixedly installed on the outer surface of the rack frame (3).

4. The rapid splicing and welding equipment for spatial hexagonal variable cross-section bending and twisting steel boxes according to claim 3, characterized in that: A wedge (55) is fixedly installed at one end of the main locking block (51). A push block (56) with a rack is slidably inserted into the inner wall of the self-locking housing (5). The outer surface of the push block (56) is slidably connected to the outer surface of the wedge (55). A transmission rod (57) with a gear is rotatably connected to the inner wall of the deflection housing (41) through a bearing. The gear of the transmission rod (57) meshes with the rack of the push block (56).

5. The rapid splicing and welding equipment for spatial hexagonal variable cross-section bending and twisting steel boxes according to claim 4, characterized in that: The inner wall of the deflection housing (41) is rotatably connected to a support roller (6), and the outer surface of the support roller (6) is slidably connected to a rotating gear ring (61). The rotating gear ring (61) meshes with the gear of the transmission rod (57). A rotary motor (62) is fixedly installed on the inner wall of the deflection housing (41), and one end of the output shaft of the rotary motor (62) meshes with the rotating gear ring (61) through a gear.

6. The rapid splicing and welding equipment for spatial hexagonal variable cross-section bending and twisting steel boxes according to claim 5, characterized in that: The winding mechanism includes a mounting frame (7), which is fixedly mounted on the outer surface of the support frame (2) located in the middle. A winding gear ring (71) is slidably inserted into the inner wall of the mounting frame (7). A winding motor (72) is fixedly mounted on the outer surface of the mounting frame (7). The output shaft of the winding motor (72) meshes with the winding gear ring (71) through a gear.

7. The rapid splicing and welding equipment for spatial hexagonal variable cross-section bending and twisting steel boxes according to claim 6, characterized in that: The welding assembly includes a connecting frame (8), a robotic arm (81), and a welding torch assembly (82). The connecting frame (8) is fixedly installed on the outer surface of the revolving toothed ring (71), the robotic arm (81) is fixedly installed on the outer surface of the connecting frame (8), and the welding torch assembly (82) is fixedly installed on one end of the robotic arm (81).

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