Multi-angle adjustable welding device and welding method for large-span steel structure

Abstract

The invention provides a multi-angle adjustable welding device and method for a large-span steel structure, and relates to the technical field of welding devices. The multi-angle adjustable welding device for the large-span steel structure comprises a base, a cleaning assembly is arranged on one side of a moving box, L-shaped sliding rails are fixedly connected to the tops of two fixing plates, a lower moving plate is arranged between the two L-shaped sliding rails, and an upper moving plate is arranged at the top of the lower moving plate; the two ends of the lower moving plate are each rotationally connected with two lower supporting wheels, the two ends of the upper moving plate are each rotationally connected with an upper supporting wheel, and the two ends of the front side of the fixing frame are each provided with a positioning assembly. According to the multi-angle adjustable welding device for the large-span steel structure, the welding angle of the steel structure can be conveniently adjusted, operation is convenient, the steel structure can be conveniently lifted, the bottom of the steel structure can be rapidly welded, physical strength is saved, welding slag generated during welding can be conveniently cleaned in time, and the welding slag is prevented from affecting the product quality.

Description

Technical Field

[0001] The invention relates to a welding device, in particular to a multi-angle adjustable welding device and a welding method for a large-span steel structure, belonging to the technical field of welding devices. Background Art

[0002] Steel structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. The components or parts in the steel structure are connected by welds, bolts or rivets. The steel structure has the characteristics of high strength, light weight, strong deformation ability, good toughness and high reliability. The application of steel structure in construction projects can effectively improve the performance of construction projects, save construction project costs and reduce the use of sand, stone and cement.

[0003] Steel structures need to be fixed and supported during welding. However, when welding large-span steel structures, due to the large size of the steel structures, the steel structures need to be lifted during welding. Since the steel structures are heavy, it is laborious to lift them manually. Moreover, when welding steel structures in different directions, people need to move back and forth around the steel structures, which wastes time. When the steel structures are lifted manually, they are prone to loosening and falling off, which is dangerous. Manual operation has large errors. After the steel structures are fixed, they often have misalignment and deviations and need to be repositioned, which not only reduces the welding efficiency, but also greatly increases the labor intensity of the workers. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The purpose of the present invention is to provide a multi-angle adjustable welding device and welding method for a large-span steel structure in order to solve the above-mentioned problems, so as to solve the problem in the prior art that the steel structure needs to be lifted during welding. Since the steel structure is heavy, it is laborious to lift it manually. Moreover, when welding the steel structure in different directions, people need to move back and forth around the steel structure, which wastes time. Moreover, when the steel structure is lifted manually, it is easy for the steel structure to loosen and fall off, which is dangerous. There are large errors in manual operation. After the steel structure is fixed, it often causes dislocation and deviation, which requires repositioning.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-angle adjustable welding device and welding method for a large-span steel structure, comprising a base, both sides of the top of the base are fixedly connected with fixed plates, one side of the two fixed plates is provided with a support frame, a first reciprocating screw rod is rotatably connected between the two support frames, the two ends of the first reciprocating screw rod respectively pass through the two support frames and are rotatably connected to the two support frames, a moving box is sleeved on the outer side of the first reciprocating screw rod, a welding machine is installed on one side of the moving box, a cleaning component is provided on one side of the moving box, and the two The top of each of the fixed plates is fixedly connected to an L-shaped slide rail, and a lower movable plate is arranged between the two L-shaped slide rails, and an upper movable plate is arranged on the top of the lower movable plate. Both ends of the lower movable plate are rotatably connected to two lower supporting wheels, and both ends of the upper movable plate are rotatably connected to upper supporting wheels. The four lower supporting wheels respectively pass through the two L-shaped slide rails and are slidably connected to the two L-shaped slide rails. The front side of the lower movable plate is fixedly connected to the bottom plate, and the front side of the upper movable plate is fixedly connected to the fixing frame, and the fixing frame is arranged on the front side of the bottom plate, and positioning components are arranged on both ends of the front side of the fixing frame.

[0008] Preferably, hinged plates are hinged on both sides of the lower movable plate, the top ends of the two hinged plates are respectively hinged to both sides of the upper movable plate, side rods are fixedly connected on both sides of the lower movable plate, side rods are fixedly connected on both sides of the lower movable plate, and L-shaped rods are fixedly connected on the front sides of the two support frames, and the two L-shaped rods are respectively fixedly connected to the two side rods, so that the support frame drives the L-shaped rod to move when it moves, and the L-shaped rod drives the lower movable plate to move through the side rods.

[0009] Preferably, two second electric push rods are fixedly connected to one side of the moving box, the output ends of the two second electric push rods are fixedly connected to a connecting plate, one side of the connecting plate is fixedly connected to a mounting frame, the welding machine is fixedly connected to the inside of the mounting frame, the rear side of the moving box is fixedly connected to a welding box, and the welding box is communicated with the welding machine.

[0010] Preferably, the cleaning assembly includes a first cleaning plate and a second cleaning plate, a threaded sleeve is fixedly connected to one side of the interior of the movable box, U-shaped grooves are opened in the two fixed plates, two ends of the first reciprocating screw rod are respectively slidably connected to the two U-shaped grooves, the threaded sleeve is sleeved on the outside of the first reciprocating screw rod and is threadedly connected to the first reciprocating screw rod, an extension plate is fixedly connected to one side of the two support frames, guide rods are fixedly connected on both sides between the two extension plates, the two guide rods respectively penetrate the movable box and are slidably connected to the movable box, so as to limit the movable box and improve the stability of the movable box.

[0011] Preferably, a rotating sleeve is rotatably connected to the inside of the other side of the moving box, and limit plates are formed on both sides of the rotating sleeve. Limit grooves are provided on both sides of the first reciprocating screw rod, and the two limit plates are slidably connected to the inside of the two limit grooves respectively. The rotating sleeve is fixedly connected to the first bevel gear on one side close to the inside of the moving box, and a rotating shaft is rotatably connected to the inside of one side of the moving box. The first cleaning plate is fixedly connected to one end of the rotating shaft, and the other end of the rotating shaft is fixedly connected to the second bevel gear. The first bevel gear is meshed with the second bevel gear, so that the rotating sleeve drives the first bevel gear to rotate when it rotates, and drives the second bevel gear to rotate through the first bevel gear.

[0012] Preferably, a sleeve is rotatably connected to the top end of the moving box, and a third bevel gear is fixedly connected to the bottom end of the sleeve, and the third bevel gear is meshingly connected to the second bevel gear. A rotating rod is slidably connected to the inside of the sleeve, and vertical grooves are provided on both sides of the rotating rod, and the two vertical grooves are adapted to the sleeve. Two first electric push rods are fixedly connected to one side of the moving box, and the output ends of the two first electric push rods are fixedly connected to the lifting frame, the rotating rod passes through the lifting frame and is rotatably connected to the lifting frame, and a second cleaning plate is fixedly connected to the top end of the rotating rod, which drives the rotating rod and the second cleaning plate to rotate through the sleeve.

[0013] Preferably, the positioning assembly includes two clamping plates, the front side of the fixed frame is fixedly connected to the two guide rails, the two guide rails are rotatably connected inside the two guide rails, the two second threaded rods are slidably connected inside the two second threaded rods, the thread directions of the two ends of the two second threaded rods are set to be opposite, the two second threaded rods respectively penetrate the four moving blocks and are threadedly connected to the four moving blocks, the upper and lower sides of the two clamping plates are respectively fixedly connected to the four moving blocks, the two second threaded rods respectively penetrate one end of the two guide rails and are rotatably connected to the two guide rails, one end of the two guide rails are fixedly connected to the synchronous wheels, the outer tensioning sleeves of the two synchronous wheels are provided with synchronous belts, the two second threaded rods are transmitted through the synchronous wheels and the synchronous belts, and the top of the front side of the fixed frame is fixedly connected to a clamping plate, which is conducive to hanging and supporting the steel structure.

[0014] Preferably, both ends of the top of the base are fixedly connected with a fixing sleeve, the two fixing sleeves are rotatably connected inside the two fixing sleeves, the two rotating sleeves are slidably connected with a first threaded rod, the two rotating sleeves are provided with guide grooves on both sides, the bottom ends of the two first threaded rods are fixedly connected with sliders on both sides, the two sliders are respectively slidably connected to the two guide grooves and slidably connected to the two guide grooves, the top ends of the two fixing sleeves are fixedly connected with a one-way bearing, the two one-way bearings are fixedly connected with a threaded ring, the two first threaded rods respectively penetrate the two threaded rings and are threadedly connected to the two threaded rings, so that the first threaded rod limits the first threaded rod when rotating forward and reverse respectively.

[0015] Preferably, sliding sleeves are fixedly connected to the front and rear sides of both ends of the top of the base, sliding rods are slidably connected inside the four sliding sleeves, springs are arranged inside the four sliding sleeves, and both ends of the springs are fixedly connected to the sliding sleeves and the sliding rods respectively to support the sliding rods and the support frame.

[0016] Preferably, a fourth bevel gear is fixedly connected to the top end of one of the first threaded rods, the first reciprocating screw rod extends to one end outside the support frame and is fixedly connected to a fifth bevel gear, the fourth bevel gear and the fifth bevel gear are meshingly connected, both sides of the bottom of the base are fixedly connected to the base frame, one side of the bottom of the base is fixedly connected to a forward and reverse motor, and the output end of the forward and reverse motor is fixedly connected to the rotating sleeve.

[0017] The present invention provides a multi-angle adjustable welding device and welding method for a large-span steel structure, which has the following beneficial effects:

[0018] 1. The multi-angle adjustable welding device and welding method of the large-span steel structure are as follows: the steel structure is placed on the front side of the fixed frame, and the top of the steel structure is clamped with the clamping plate, and the steel structure is placed on the top of the bottom plate, so that the bottom plate supports the steel structure. A motor is installed on one side of the guide rail, so that the output end of the motor is connected to the second threaded rod, and the second threaded rod is driven to rotate by starting the motor, and the two second threaded rods are synchronously driven by two synchronous wheels and a synchronous belt, so that the two second threaded rods drive the four moving blocks to move relative to each other inside the guide rail, and drive the two clamps to move relative to each other, so that the two clamps fix and limit the steel structure, which is convenient for welding the steel structure.

[0019] 2. The multi-angle adjustable welding device and welding method of the large-span steel structure, when the first threaded rod rises, it drives the support frame to rise, and when the support frame rises, it drives the two L-shaped rods to rise, so that when the two L-shaped rods rise, they drive the two side rods to rise, and when the two side rods rise, they drive the lower movable plate to rise, and when the lower movable plate rises, it drives the multiple lower support wheels on both sides to slide inside the two L-shaped slide rails to limit the lower movable plate, and when the lower movable plate rises, it drives the bottom plate to rise, so that the bottom plate drives the steel structure to rise, and lifts the steel structure, and at the same time, when the lower movable plate rises, it drives the two hinged plates to rise, so that the two hinged plates push the upper movable plate to rise, and the upper movable plate When the movable plate rises, it drives the two upper supporting wheels to slide inside the two L-shaped slide rails. When the two upper supporting wheels move to the top bending part of the L-shaped slide rail, the upper supporting wheels rotate rearward along the L-shaped slide rail inside the L-shaped slide rail. When the upper supporting wheels move, they drive the upper movable plate to move along, and at the same time drive the fixed frame to deflect. When the fixed frame deflects, it drives the two second threaded rods to move. When the two second threaded rods move, they drive the clamping plate to deflect, and then drive the steel structure to deflect, so that the steel structure is turned over, which is beneficial to adjust the welding angle of the steel structure, facilitates operation, and is beneficial to lifting the steel structure, quickly welding the bottom of the steel structure, and saving physical strength.

[0020] 3. The multi-angle adjustable welding device and welding method of the large-span steel structure enable the limit plate to drive the rotating sleeve to rotate when it rotates, and the rotating sleeve drives the first bevel gear to rotate when it rotates, and then the first bevel gear drives the second bevel gear and the third bevel gear to rotate when it rotates. The rotation of the second bevel gear drives the first cleaning plate to rotate, which is beneficial to cleaning the steel structure. When the third bevel gear rotates, it drives the sleeve to rotate, and the sleeve drives the rotating rod and the second cleaning plate to rotate. At the same time, the first electric push rod drives the lifting frame and the second cleaning plate to rise when starting, so that the lifting frame drives the rotating rod to move upward inside the sleeve, and the sleeve drives the rotating rod and the second cleaning plate to rotate to clean the steel structure, which is convenient for timely cleaning of welding slag generated during welding to prevent welding slag from affecting product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a front view schematic diagram of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the base of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the support frame of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the extension plate of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the fixing sleeve of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the first reciprocating screw rod of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the mobile box of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the rotating sleeve of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the rotating sleeve of the present invention;

[0031] Fig.11 It is a structural schematic diagram of the rotating rod of the present invention;

[0032] Fig.12 It is a structural schematic diagram of the lower movable plate of the present invention;

[0033] Fig.13 It is a structural schematic diagram of the splint of the present invention;

[0034] Fig.14 It is a structural schematic diagram of the bottom plate of the present invention;

[0035] Fig.15 It is a structural schematic diagram of the fixing frame of the present invention.

[0036] In the figure: 1, base; 2, fixed plate; 3, support frame; 4, first reciprocating screw rod; 5, moving box; 6, threaded sleeve; 7, rotating sleeve; 8, limit plate; 9, limit groove; 10, first bevel gear; 11, second bevel gear; 12, rotating shaft; 13, first cleaning plate; 14, sleeve; 15, third bevel gear; 16, rotating rod; 17, vertical groove; 19, second cleaning plate; 20, first electric push rod; 21, lifting frame; 22, welding box; 23, second electric push rod; 24, connecting plate; 25, mounting frame; 26, welding machine; 27, fixed sleeve; 28, rotating sleeve; 29, first threaded rod; 30, slider ;31. Guide groove;32. One-way bearing;33. Threaded ring;34. Fourth bevel gear;35. Fifth bevel gear;36. Base frame;37. Forward and reverse motor;38. L-shaped slide rail;39. Lower moving plate;40. Lower support wheel;41. Upper moving plate;42. Upper support wheel;43. Side rod;44. Fixed frame;45. Base plate;47. Hinge plate;48. Guide slide rail;49. Second threaded rod;50. Moving block;51. Clamp;52. Synchronous wheel;53. Synchronous belt;54. Sliding sleeve;55. Sliding rod;56. Spring;57. Snap-on plate;58. L-shaped rod;59. Extension plate;61. Guide rod. DETAILED DESCRIPTION

[0037] The embodiments of the present invention provide a multi-angle adjustable welding device and a welding method for a large-span steel structure.

[0038] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 and Fig.15 , including a base 1, both sides of the top of the base 1 are fixedly connected with fixed plates 2, one side of the two fixed plates 2 is provided with a support frame 3, a first reciprocating screw rod 4 is rotatably connected between the two support frames 3, the two ends of the first reciprocating screw rod 4 respectively penetrate the two support frames 3 and are rotatably connected to the two support frames 3, a moving box 5 is sleeved on the outer side of the first reciprocating screw rod 4, a welding machine 26 is installed on one side of the moving box 5, a cleaning component is provided on one side of the moving box 5, the tops of the two fixed plates 2 are fixedly connected with L-shaped slide rails 38, and a A lower movable plate 39 is provided with an upper movable plate 41 on the top of the lower movable plate 39, both ends of the lower movable plate 39 are rotatably connected to two lower support wheels 40, both ends of the upper movable plate 41 are rotatably connected to upper support wheels 42, the four lower support wheels 40 respectively pass through two L-shaped slide rails 38 and are slidably connected to the two L-shaped slide rails 38, the front side of the lower movable plate 39 is fixedly connected to a bottom plate 45, the front side of the upper movable plate 41 is fixedly connected to a fixing frame 44, the fixing frame 44 is arranged on the front side of the bottom plate 45, and positioning components are arranged on both ends of the front side of the fixing frame 44.

[0039] Both sides of the lower movable plate 39 are hinged with hinged plates 47, and the tops of the two hinged plates 47 are hinged with both sides of the upper movable plate 41 respectively. Both sides of the lower movable plate 39 are fixedly connected with side rods 43, and both sides of the lower movable plate 39 are fixedly connected with side rods 43. The front sides of the two support frames 3 are fixedly connected with L-shaped rods 58, and the two L-shaped rods 58 are fixedly connected with the two side rods 43 respectively, so that the support frame 3 drives the L-shaped rods 58 to move when moving, and the L-shaped rods 58 drive the lower movable plate 39 to move through the side rods 43. One side of the movable box 5 is fixedly connected with two second electric push rods 23, and the output ends of the two second electric push rods 23 are fixedly connected with a connecting plate 24, and one side of the connecting plate 24 is fixedly connected with a mounting frame 25. The welding machine 26 is fixedly connected to the inside of the mounting frame 25, and the rear side of the movable box 5 is fixedly connected with a welding box 22, and the welding box 22 is connected to the welding machine 26.

[0040] The cleaning assembly includes a first cleaning plate 13 and a second cleaning plate 19, a threaded sleeve 6 is fixedly connected to one side of the moving box 5, U-shaped grooves are provided inside the two fixed plates 2, two ends of the first reciprocating screw rod 4 are respectively slidably connected to the inside of the two U-shaped grooves, the threaded sleeve 6 is sleeved on the outside of the first reciprocating screw rod 4 and is threadedly connected to the first reciprocating screw rod 4, one side of the two support frames 3 is fixedly connected to an extension plate 59, both sides between the two extension plates 59 are fixedly connected to a guide rod 61, the two guide rods 61 respectively penetrate the moving box 5 and are slidably connected to the moving box 5, the moving box 5 is limited to improve the stability of the moving box 5, the other side of the moving box 5 is rotatably connected to a rotating sleeve 7, both sides of the rotating sleeve 7 are formed with limiting plates 8, both sides of the first reciprocating screw rod 4 are provided with limiting grooves 9, the two limiting plates 8 are respectively slidably connected to the inside of the two limiting grooves 9, the rotating sleeve 7 is fixedly connected to one side of the moving box 5, and the rotating shaft 1 is rotatably connected to one side of the moving box 5 2, the first cleaning plate 13 is fixedly connected to one end of the rotating shaft 12, and the other end of the rotating shaft 12 is fixedly connected to the second bevel gear 11, the first bevel gear 10 is meshed with the second bevel gear 11, so that the rotating sleeve 7 drives the first bevel gear 10 to rotate when rotating, and drives the second bevel gear 11 to rotate through the first bevel gear 10, the top end of the moving box 5 is rotatably connected with a sleeve 14, the bottom end of the sleeve 14 is fixedly connected with a third bevel gear 15, the third bevel gear 15 is meshed with the second bevel gear 11, and the sleeve 14 is slidably connected with a rotating rod 16, both sides of the rotating rod 16 are provided with vertical grooves 17, and the two vertical grooves 17 are adapted to the sleeve 14, one side of the moving box 5 is fixedly connected with two first electric push rods 20, the output ends of the two first electric push rods 20 are fixedly connected with a lifting frame 21, the rotating rod 16 passes through the lifting frame 21 and is rotatably connected with the lifting frame 21, and the top of the rotating rod 16 is fixedly connected with a second cleaning plate 19, which drives the rotating rod 16 and the second cleaning plate 19 to rotate through the sleeve 14.

[0041] The positioning assembly includes two clamping plates 51, and two guide rails 48 are fixedly connected to the front side of the fixed frame 44. The two guide rails 48 are rotatably connected with second threaded rods 49 inside, and moving blocks 50 are slidably connected at both ends of the two second threaded rods 49. The thread directions at both ends of the two second threaded rods 49 are set to be opposite. The two second threaded rods 49 respectively penetrate the four moving blocks 50 and are threadedly connected to the four moving blocks 50. The upper and lower sides of the two clamping plates 51 are respectively fixedly connected to the four moving blocks 50, and the two second threaded rods 49 respectively penetrate one end of the two guide rails 48 and are rotatably connected to the two guide rails 48. One end of the two guide rails 48 is fixedly connected with a synchronous wheel 52, and the outer tensioning sleeves of the two synchronous wheels 52 are provided with a synchronous belt 53. The two second threaded rods 49 are driven by the synchronous wheel 52 and the synchronous belt 53. A clamping plate 57 is fixedly connected to the top of the front side of the fixed frame 44, which is conducive to hanging and supporting the steel structure.

[0042] Both ends of the top of the base 1 are fixedly connected with fixed sleeves 27, and the two fixed sleeves 27 are rotatably connected with rotating sleeves 28 inside. The two rotating sleeves 28 are slidably connected with first threaded rods 29 inside. Guide grooves 31 are provided on both sides of the two rotating sleeves 28. Slide blocks 30 are fixedly connected with both sides of the bottom ends of the two first threaded rods 29. The two slide blocks 30 are respectively slidably connected to the inside of the two guide grooves 31 and are slidably connected to the two guide grooves 31. One-way bearings 32 are fixedly connected to the tops of the two fixed sleeves 27. Threaded rings 33 are fixedly connected to the insides of the two one-way bearings 32. The two first threaded rods 29 respectively penetrate the two threaded rings 33 and are threadedly connected to the two threaded rings 33, so that the first threaded rods 29 can rotate forward and reverse respectively. The first threaded rod 29 is limited, and sliding sleeves 54 are fixedly connected to the front and rear sides of both ends of the top of the base 1, and sliding rods 55 are slidably connected inside the four sliding sleeves 54. Springs 56 are arranged inside the four sliding sleeves 54, and the two ends of the springs 56 are respectively fixedly connected to the sliding sleeves 54 and the sliding rods 55 to support the sliding rods 55 and the support frame 3. The top of one of the first threaded rods 29 is fixedly connected to the fourth bevel gear 34, and the first reciprocating screw rod 4 extends to one end outside the support frame 3 and is fixedly connected to the fifth bevel gear 35. The fourth bevel gear 34 and the fifth bevel gear 35 are meshed and connected. The bottom of the base 1 is fixedly connected to the base frame 36 on both sides, and the forward and reverse motors 37 are fixedly connected to one side of the bottom of the base 1. The output end of the forward and reverse motors 37 is fixedly connected to the rotating sleeve 28.

[0043] Specifically, the steel structure is placed on the front side of the fixed frame 44, and the top of the steel structure is clamped with the clamping plate 57. At the same time, the steel structure is placed on the top of the bottom plate 45, so that the bottom plate 45 supports the steel structure. A motor is installed on one side of the guide rail 48, and the output end of the motor is connected to the second threaded rod 49. The second threaded rod 49 is driven to rotate by starting the motor, and the two second threaded rods 49 are synchronously driven by two synchronous wheels 52 and a synchronous belt 53, so that the two second threaded rods 49 drive the four moving blocks 50 to move relative to each other inside the guide rail 48, and drive the two clamps 51 to move relative to each other, so that the two clamps 51 fix and limit the steel structure, which is convenient for welding the steel structure.

[0044] The two rotating sleeves 28 are driven to rotate by the forward and reverse motors 37, and then the rotating sleeves 28 are limited on the slider 30 through the guide grooves 31, thereby driving the first threaded rod 29 to rotate, and then when the first threaded rod 29 rotates forward, the one-way bearing 32 limits the threaded ring 33, so that the first threaded rod 29 is limited by the threaded ring 33, so that the first threaded rod 29 rises inside the threaded ring 33 when the threaded ring 33 rotates, and the first threaded rod 29 drives the support frame 3 to rise when it rises, and when the support frame 3 rises, it drives the two L-shaped rods 58 to rise, so that when the two L-shaped rods 58 rise, the two side rods 43 rise, and when the two side rods 43 rise, it drives the lower moving plate 39 to rise, and when the lower moving plate 39 rises, it drives the multiple lower support wheels 40 on both sides to slide inside the two L-shaped slide rails 38 to limit the lower moving plate 39, and when the lower moving plate 39 rises, it drives the bottom plate 45 to rise, so that the bottom plate When the two upper supporting wheels 42 move to the top bending position of the L-shaped slide rail 38, the upper supporting wheels 42 rotate backward along the L-shaped slide rail 38 inside the L-shaped slide rail 38, and when the upper supporting wheels 42 move, the upper moving plate 41 is driven to move along with it, and the fixing frame 44 is driven to deflect at the same time. When the fixing frame 44 deflects, the two second threaded rods 49 are driven to move, and the two second threaded rods 49 are driven to deflect when the two second threaded rods 49 move, and then the steel structure is driven to deflect, so that the steel structure is turned over, which is beneficial to adjust the welding angle of the steel structure, convenient for operation, beneficial to lift the steel structure, quickly weld the bottom of the steel structure, and save physical strength.

[0045] The support frame 3 is started by the forward and reverse motor 37 to drive the first reciprocating screw rod 4 to rise when it rises, so that the first reciprocating screw rod 4 drives the moving box 5 and the welding box 22 to rise when it rises, and when the moving box 5 rises, it drives the second electric push rod 23 to move, and the second electric push rod 23 drives the connecting plate 24 and the mounting frame 25 to move, so that the mounting frame 25 drives the welding machine 26 to move, and the mounting frame 25 and the welding machine 26 are driven to rise by the second electric push rod 23, so that the welding machine 26 welds the steel structure flipped to the top, and the welding machine 26 can be taken out from the inside of the mounting frame 25, so that the staff can weld the steel structure through the welding machine 26, which is convenient for taking and operation.

[0046] The first threaded rod 29 drives the fourth bevel gear 34 to rotate when rotating, so that the fourth bevel gear 34 drives the first reciprocating screw rod 4 to rotate. When the first reciprocating screw rod 4 rotates, the first reciprocating screw rod 4 drives the threaded sleeve 6 to move, and then the threaded sleeve 6 drives the moving box 5 to move, and the moving box 5 drives the welding box 22 and the welding machine 26 to move, so as to facilitate welding.

[0047] When the first reciprocating screw rod 4 rotates, the two limiting plates 8 are limited by the limiting grooves 9 opened on both sides of the first reciprocating screw rod 4, so that the limiting plate 8 drives the rotating sleeve 7 to rotate when rotating, and the rotating sleeve 7 drives the first bevel gear 10 to rotate when rotating, and then the first bevel gear 10 drives the second bevel gear 11 and the third bevel gear 15 to rotate when rotating, and the rotation of the second bevel gear 11 drives the first cleaning plate 13 to rotate, which is beneficial to cleaning the steel structure. When the third bevel gear 15 rotates, it drives the sleeve 14 to rotate, and the sleeve 14 drives the rotating rod 16 and the second cleaning plate 19 to rotate. At the same time, the first electric push rod 20 drives the lifting frame 21 and the second cleaning plate 19 to rise when starting, so that the lifting frame 21 drives the rotating rod 16 to move up inside the sleeve 14, and the sleeve 14 drives the rotating rod 16 and the second cleaning plate 19 to rotate to clean the steel structure, which is convenient for timely cleaning of welding slag generated during welding to prevent welding slag from affecting product quality.

[0048] A multi-angle adjustable welding method for a large-span steel structure specifically comprises the following steps:

[0049] Step 1: Place the steel structure on the front side of the fixing frame 44, and make the top of the steel structure be clamped with the clamping plate 57. Meanwhile, place the steel structure on the top of the bottom plate 45, so that the bottom plate 45 supports the steel structure. A motor is installed on one side of the guide rail 48, and the output end of the motor is connected to the second threaded rod 49. The second threaded rod 49 is driven to rotate by starting the motor, and the two second threaded rods 49 are synchronously driven by two synchronous wheels 52 and a synchronous belt 53, so that the two second threaded rods 49 drive the four moving blocks 50 to move relative to each other inside the guide rail 48, and drive the two clamps 51 to move relative to each other, so that the two clamps 51 fix and limit the steel structure, which is convenient for welding the steel structure.

[0050] Step 2: When the upper movable plate 41 rises, it drives the two upper support wheels 42 to slide inside the two L-shaped slide rails 38. When the two upper support wheels 42 move to the top bend of the L-shaped slide rails 38, the upper support wheels 42 rotate backward along the L-shaped slide rails 38 inside the L-shaped slide rails 38. When the upper support wheels 42 move, they drive the upper movable plate 41 to move along, and at the same time drive the fixed frame 44 to deflect. When the fixed frame 44 deflects, it drives the two second threaded rods 49 to move. When the two second threaded rods 49 move, they drive the clamping plate 51 to deflect, and then drive the steel structure to deflect, so that the steel structure is flipped, which is beneficial to adjust the welding angle of the steel structure.

[0051] Step three: When the moving box 5 is rising, it drives the second electric push rod 23 to move, and the second electric push rod 23 drives the connecting plate 24 and the mounting frame 25 to move, so that the mounting frame 25 drives the welding machine 26 to move, and the mounting frame 25 and the welding machine 26 are driven to rise by the second electric push rod 23, so that the welding machine 26 welds the steel structure flipped to the top, and the welding machine 26 can be taken out from the inside of the mounting frame 25, so that the staff can weld the steel structure through the welding machine 26, which is convenient for taking and operation.

[0052] Step 4: The rotation of the second bevel gear 11 drives the first cleaning plate 13 to rotate, which is beneficial to cleaning the steel structure. When the third bevel gear 15 rotates, it drives the sleeve 14 to rotate, and the sleeve 14 drives the rotating rod 16 and the second cleaning plate 19 to rotate. At the same time, the first electric push rod 20 drives the lifting frame 21 and the second cleaning plate 19 to rise when it is started, so that the lifting frame 21 drives the rotating rod 16 to move up inside the sleeve 14. The sleeve 14 drives the rotating rod 16 and the second cleaning plate 19 to rotate to clean the steel structure, which is convenient for timely cleaning of the welding slag generated during welding to prevent the welding slag from affecting product quality.

[0053] The above shows and describes the basic principles and main features of the present invention and the 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 to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-angle adjustable welding device for a large-span steel structure, comprising a base (1), characterized in that: Both sides of the top of the base (1) are fixedly connected with fixed plates (2), one side of the two fixed plates (2) is provided with a support frame (3), a first reciprocating screw rod (4) is rotatably connected between the two support frames (3), the two ends of the first reciprocating screw rod (4) respectively pass through the two support frames (3) and are rotatably connected to the two support frames (3), a moving box (5) is sleeved on the outside of the first reciprocating screw rod (4), a welding machine (26) is installed on one side of the moving box (5), a cleaning component is provided on one side of the moving box (5), the tops of the two fixed plates (2) are fixedly connected with L-shaped slide rails (38), and a downward moving guide is provided between the two L-shaped slide rails (38). A movable plate (39), an upper movable plate (41) is arranged on the top of the lower movable plate (39), two lower support wheels (40) are rotatably connected at both ends of the lower movable plate (39), upper support wheels (42) are rotatably connected at both ends of the upper movable plate (41), the four lower support wheels (40) respectively penetrate two L-shaped slide rails (38) and are slidably connected to the two L-shaped slide rails (38), a bottom plate (45) is fixedly connected to the front side of the lower movable plate (39), a fixed frame (44) is fixedly connected to the front side of the upper movable plate (41), the fixed frame (44) is arranged on the front side of the bottom plate (45), and positioning components are arranged at both ends of the front side of the fixed frame (44).

2. The multi-angle adjustable welding device for a large-span steel structure according to claim 1 is characterized in that: Both sides of the lower movable plate (39) are hinged with hinged plates (47), the top ends of the two hinged plates (47) are respectively hinged with the two sides of the upper movable plate (41), both sides of the lower movable plate (39) are fixedly connected with side rods (43), both sides of the lower movable plate (39) are fixedly connected with side rods (43), the front sides of the two support frames (3) are fixedly connected with L-shaped rods (58), and the two L-shaped rods (58) are respectively fixedly connected with the two side rods (43).

3. The multi-angle adjustable welding device for a large-span steel structure according to claim 1 is characterized in that: Two second electric push rods (23) are fixedly connected to one side of the moving box (5); the output ends of the two second electric push rods (23) are fixedly connected to a connecting plate (24); one side of the connecting plate (24) is fixedly connected to a mounting frame (25); the welding machine (26) is fixedly connected to the inside of the mounting frame (25); the rear side of the moving box (5) is fixedly connected to a welding box (22); and the welding box (22) is in communication with the welding machine (26).

4. The multi-angle adjustable welding device for a large-span steel structure according to claim 1 is characterized in that: The cleaning assembly comprises a first cleaning plate (13) and a second cleaning plate (19); a threaded sleeve (6) is fixedly connected to one side of the movable box (5); a U-shaped groove is provided inside the two fixed plates (2); two ends of the first reciprocating screw rod (4) are respectively slidably connected to the inside of the two U-shaped grooves; the threaded sleeve (6) is sleeved on the outside of the first reciprocating screw rod (4) and is threadedly connected to the first reciprocating screw rod (4); one side of the two support frames (3) is fixedly connected to an extension plate (59); guide rods (61) are fixedly connected on both sides between the two extension plates (59); the two guide rods (61) respectively penetrate the movable box (5) and are slidably connected to the movable box (5).

5. The multi-angle adjustable welding device for a large-span steel structure according to claim 4 is characterized in that: A rotating sleeve (7) is rotatably connected inside the other side of the moving box (5), and limit plates (8) are formed on both sides of the rotating sleeve (7). Limit grooves (9) are provided on both sides of the first reciprocating screw rod (4), and the two limit plates (8) are respectively slidably connected inside the two limit grooves (9). A first bevel gear (10) is fixedly connected to the rotating sleeve (7) on one side close to the inside of the moving box (5), and a rotating shaft (12) is rotatably connected inside one side of the moving box (5). The first cleaning plate (13) is fixedly connected to one end of the rotating shaft (12), and the other end of the rotating shaft (12) is fixedly connected to a second bevel gear (11), and the first bevel gear (10) is meshingly connected with the second bevel gear (11).

6. The multi-angle adjustable welding device for a large-span steel structure according to claim 1 is characterized in that: The top end of the movable box (5) is rotatably connected to a sleeve (14), the bottom end of the sleeve (14) is fixedly connected to a third bevel gear (15), the third bevel gear (15) is meshingly connected to the second bevel gear (11), the sleeve (14) is slidably connected to a rotating rod (16), both sides of the rotating rod (16) are provided with vertical grooves (17), the two vertical grooves (17) are adapted to the sleeve (14), one side of the movable box (5) is fixedly connected to two first electric push rods (20), the output ends of the two first electric push rods (20) are fixedly connected to a lifting frame (21), the rotating rod (16) passes through the lifting frame (21) and is rotatably connected to the lifting frame (21), and the top end of the rotating rod (16) is fixedly connected to a second cleaning plate (19).

7. The multi-angle adjustable welding device for a large-span steel structure according to claim 1 is characterized in that: The positioning assembly comprises two clamping plates (51), the front side of the fixed frame (44) is fixedly connected with two guide rails (48), the two guide rails (48) are rotatably connected with second threaded rods (49) inside, the two second threaded rods (49) are slidably connected with moving blocks (50) at both ends, the thread directions of the two ends of the two second threaded rods (49) are set to be opposite, the two second threaded rods (49) respectively penetrate the four moving blocks (50) and are threadedly connected with the four moving blocks (50), the upper and lower sides of the two clamping plates (51) are respectively fixedly connected with the four moving blocks (50), the two second threaded rods (49) respectively penetrate one end of the two guide rails (48) and are rotatably connected with the two guide rails (48), one end of the two guide rails (48) is fixedly connected with a synchronous wheel (52), the outer tensioning sleeves of the two synchronous wheels (52) are provided with a synchronous belt (53), and the top of the front side of the fixed frame (44) is fixedly connected with a clamping plate (57).

8. The multi-angle adjustable welding device for a large-span steel structure according to claim 1 is characterized in that: Both ends of the top of the base (1) are fixedly connected with a fixing sleeve (27), the inside of the two fixing sleeves (27) are rotatably connected with a rotating sleeve (28), the inside of the two rotating sleeves (28) are slidably connected with a first threaded rod (29), both sides of the inside of the two rotating sleeves (28) are provided with a guide groove (31), both sides of the bottom of the two first threaded rods (29) are fixedly connected with a slider (30), the two sliders (30) are respectively slidably connected inside the two guide grooves (31) and slidably connected with the two guide grooves (31), the top of the two fixing sleeves (27) are fixedly connected with a one-way bearing (32), the inside of the two one-way bearings (32) are fixedly connected with a threaded ring (33), and the two first threaded rods (29) respectively penetrate the two threaded rings (33) and are threadedly connected with the two threaded rings (33).

9. The multi-angle adjustable welding device for a large-span steel structure according to claim 8, characterized in that: Both ends of the top of the base (1) are fixedly connected to the front and rear sides with sliding sleeves (54), and the four sliding sleeves (54) are slidably connected to the inside of the sliding rods (55). The four sliding sleeves (54) are provided with springs (56) inside, and the two ends of the springs (56) are respectively fixedly connected to the sliding sleeves (54) and the sliding rods (55). The top of one of the first threaded rods (29) is fixedly connected to a fourth bevel gear (34), and the first reciprocating screw rod (4) is extended to the outside of the support frame (3) and is fixedly connected to one end thereof. The fourth bevel gear (34) and the fifth bevel gear (35) are meshingly connected. Both sides of the bottom of the base (1) are fixedly connected to the base frame (36), and one side of the bottom of the base (1) is fixedly connected to a forward and reverse motor (37), and the output end of the forward and reverse motor (37) is fixedly connected to the rotating sleeve (28).

10. A multi-angle adjustable welding method for a large-span steel structure, applicable to a multi-angle adjustable welding device for a large-span steel structure as claimed in any one of claims 1 to 9, characterized in that: The specific steps include: Step 1: placing the steel structure on the front side of the fixing frame (44), and making the top of the steel structure clamped with the clamping plate (57), and placing the steel structure on the top of the bottom plate (45), so that the bottom plate (45) supports the steel structure, and installing a motor on one side of the guide rail (48), so that the output end of the motor is connected to the second threaded rod (49), and the second threaded rod (49) is driven to rotate by starting the motor, and the two second threaded rods (49) are synchronously driven by two synchronous wheels (52) and a synchronous belt (53), so that the two second threaded rods (49) drive the four moving blocks (50) to move relative to each other inside the guide rail (48), and drive the two clamping plates (51) to move relative to each other, so that the two clamping plates (51) fix and limit the steel structure, which is convenient for welding the steel structure; Step 2: When the upper movable plate (41) rises, it drives the two upper support wheels (42) to slide inside the two L-shaped slide rails (38). When the two upper support wheels (42) move to the top bend of the L-shaped slide rail (38), the upper support wheels (42) rotate backward along the L-shaped slide rail (38) inside the L-shaped slide rail (38). When the upper support wheels (42) move, the upper movable plate (41) is driven to move along, and the fixed frame (44) is driven to deflect at the same time. When the fixed frame (44) deflects, the two second threaded rods (49) are driven to move. When the two second threaded rods (49) move, the clamping plate (51) is driven to deflect, and then the steel structure is driven to deflect, so that the steel structure is flipped, which is conducive to adjusting the welding angle of the steel structure. Step 3: When the moving box (5) is rising, it drives the second electric push rod (23) to move, and the second electric push rod (23) drives the connecting plate (24) and the mounting frame (25) to move, so that the mounting frame (25) drives the welding machine (26) to move, and the second electric push rod (23) is started to drive the mounting frame (25) and the welding machine (26) to rise, so that the welding machine (26) welds the steel structure turned to the top, and the welding machine (26) can be taken out from the inside of the mounting frame (25), so that the staff can weld the steel structure through the welding machine (26), which is convenient for taking and operation; Step 4: The second bevel gear (11) rotates to drive the first cleaning plate (13) to rotate, which is beneficial to cleaning the steel structure. When the third bevel gear (15) rotates, it drives the sleeve (14) to rotate, and the sleeve (14) drives the rotating rod (16) and the second cleaning plate (19) to rotate. At the same time, the first electric push rod (20) drives the lifting frame (21) and the second cleaning plate (19) to rise when starting, so that the lifting frame (21) drives the rotating rod (16) to move upward inside the sleeve (14). When the sleeve (14) drives the rotating rod (16) and the second cleaning plate (19) to rotate, the steel structure is cleaned, which is convenient for timely cleaning of welding slag generated during welding to prevent welding slag from affecting product quality.

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