An arc welding device for fabricated steel frame processing

Abstract

The application discloses an arc welding device for fabricated steel frame machining, and particularly relates to the technical field of arc welding devices, which comprises two H-shaped steel frames one, the inner surface and the outer surface of the front side and the outer surface of the rear side of the H-shaped steel frame two are jointly and slidably installed with a positioning assembly, the outer surface of the positioning assembly is slidably installed with a transmission assembly at the lower side, the outer surface of the left side and the outer surface of the right side of the positioning assembly are fixedly installed with limiting assemblies, and the outer surfaces of the two limiting assemblies are slidably installed with welding assemblies. The arc welding device for fabricated steel frame machining can automatically clamp and fix the plate to be welded at the right-angle position of the H-shaped steel frame through the cooperation of the positioning assembly, the transmission assembly and the limiting assembly, solves the problems that the plate is difficult to be positioned and is prone to displacement in the traditional welding process, and positioning and welding can be completed without the assistance of multiple people, the required labor intensity is effectively reduced, and the welding machining efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of arc welding equipment technology, and in particular to an arc welding equipment for processing prefabricated steel structures. Background Technology

[0002] The arc welding device for prefabricated steel frame processing is a specialized equipment for welding steel structure components. It is mainly used in the production process of steel structure projects such as prefabricated buildings, bridges, and factories. The device uses arc welding technology to connect steel components into an integral structure according to design requirements, ensuring the strength and stability of the welded parts, thereby improving the assembly quality and construction efficiency of the steel frame. Such welding equipment typically includes a welding power source, a welding robot or welding worktable, welding fixtures, a guide rail system, and a control system. The welding power source provides stable arc energy, enabling the welding wire to melt and weld with the steel component; the welding robot or worktable can precisely position and weld the steel component; the welding fixture is used to fix the component, ensuring the accuracy of the angle and position of the welding part; the guide rail system and control system realize the automated control of the welding process, improving welding efficiency and weld consistency. However, in existing technologies, when welding H-shaped steel frames, it is often difficult to fix the plates at the right angles of the H-shaped steel frame. Due to the narrow space at the right angle, the plates are prone to displacement or cannot be kept stable, requiring multiple operators to assist in the welding. This not only increases labor intensity but also significantly reduces the overall welding efficiency and has a certain impact on the stability of welding quality. Therefore, improving the positioning and fixing ability of right-angle welding of H-shaped steel frames is an important direction for improving welding efficiency and quality.

[0003] Chinese Patent Publication No. CN217799780U discloses a welding device for prefabricated steel structure processing, including a support rod. A first clamp is connected to the upper side of the support rod, a rotating tube is connected to the outer side of the support rod, a telescopic device is connected to the right side of the rotating tube, and a second clamp is connected to the right side of the telescopic device. The first clamp and the second clamp have the same shape. The second clamp includes a fixing box, and screws are connected to the front and rear sides of the fixing box. The above-mentioned patent document can fix the fixing part to the device by setting the first clamp, and then fix the welding part near the fixing part by setting the second clamp. The position of the welding part can be adjusted by the telescopic device. This makes it convenient for workers to hold a welding gun in one hand and a protective mask in the other hand during on-site installation and welding, without the need to fix the workpiece, thus reducing the harm to the worker's face during welding.

[0004] The equipment described in the aforementioned patent document cannot be used for welding H-shaped steel frames. When welding H-shaped steel frames, it is necessary to weld plates to the right angles of the two H-shaped steel frames. However, the aforementioned patent document cannot achieve this welding process and still requires a lot of manual support for welding, which reduces the overall welding efficiency. Summary of the Invention

[0005] The main objective of this invention is to provide an arc welding device for processing prefabricated steel frames, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An arc welding device for prefabricated steel frame processing includes two H-shaped steel frames 1. One end of the two H-shaped steel frames 1 is fixedly connected to an H-shaped steel frame 2. A positioning component is slidably installed on the front side of the inner surface and the rear side of the outer surface of the H-shaped steel frame 2. A transmission component is slidably installed on the lower side of the outer surface of the positioning component. Limiting components are fixedly installed on the left side and the right side of the outer surface of the positioning component. A welding component is slidably installed on the outer surface of both limiting components.

[0007] Preferably, the positioning assembly includes two clamping plates. A trapezoidal groove is formed in the middle of the two clamping plates at their closest points. Two symmetrically distributed top plates are slidably connected to the left and right sides of the two clamping plates at their closest points. A bidirectional threaded rod is threadedly connected to the inner surface of each of the two top plates on the same side. A pulley is fixedly connected to the middle of the outer surface of each of the four bidirectional threaded rods. A fixed platform is fixedly connected to the middle of the two clamping plates at their furthest points. A pulley is rotatably connected to the upper center of each of the two fixed platforms on their furthest sides. A transmission rod is fixedly connected to the inner surface of each of the two pulleys. The lower end of each transmission rod on the same side passes through the upper end of the fixed platform on the same side and extends to the lower side. A pulley is fixedly connected to the lower side of the outer surface of each of the two transmission rods.

[0008] Preferably, a limiting ring is fixedly connected to the upper side of the middle of the outer surface and the lower side of the middle of the outer surface of each of the four bidirectional threaded rods. A concave ring is slidably connected to the outer surface of the limiting ring on the same side. An installation block is fixedly connected to the outer surface of the concave ring on the same side and the end of the clamping plate on the same side that are close to each other.

[0009] Preferably, the outer surfaces of the two pulleys on the same side and the pulley on the same side are all connected by a belt drive.

[0010] Preferably, the transmission assembly includes an H-shaped plate, with the lower ends of the two clamping plates slidably connected to the upper end of the H-shaped plate. Slider blocks are fixedly connected to the lower left and lower right ends of the two clamping plates. The two sliders on the left and the two sliders on the right are slidably connected to the left and right ends of the H-shaped plate, respectively. The inner surfaces of the two sliders on the same side are threaded with a bidirectional threaded rod II. Knobs are fixedly connected to the rear side of the outer surfaces of the two bidirectional threaded rod II. A transmission assembly is slidably installed on the inner surface of the H-shaped plate.

[0011] Preferably, the transmission assembly includes a bidirectional threaded rod three. A limiting groove one is formed in the middle of the upper end of the H-shaped plate. The left and right ends of the bidirectional threaded rod three are slidably connected to the left side wall and the right side wall of the inner surface of the limiting groove one, respectively. Threaded blocks are threadedly connected to the left and right sides of the outer surface of the bidirectional threaded rod three. Both threaded blocks are slidably connected to the inner surface of the bidirectional threaded rod three. A limiting groove two penetrating the lower end of the H-shaped plate is formed in the middle of the bottom wall of the limiting groove one. Limiting groove three is formed on the front left side and the front right side of the upper end of the H-shaped plate. Rectangular grooves are formed in the bottom walls of the two limiting groove three. Both the inner surface and the middle of the right side wall of the inner surface are rotatably connected to an extension rod. The ends of the two extension rods that are close to each other pass through the rectangular groove on the same side and are fixedly connected to the bidirectional threaded rod. The outer surfaces of the two extension rods that are close to each other are fixedly connected to a gear. The upper parts of the left side wall and the upper parts of the right side wall of the inner surface of the two rectangular grooves are slidably connected to a rack. The racks on the same side mesh with the gears on the same side. The front upper ends of the two racks are fixedly connected to the lower end of the clamping plate on the front side through a connecting block. The lower ends of the two threaded blocks are fixedly connected to a rectangular block. The two rectangular blocks are slidably connected to the inner surface of the limiting groove.

[0012] Preferably, a rotating block 1 is rotatably connected to the side of the two rectangular blocks that are close to each other at the bottom. A pulley 4 is fixedly connected to the outer surface of the two rotating blocks 1. A rotating block 2 is rotatably connected to the side of the two rectangular blocks that are far apart from each other at the bottom. A tensioning wheel is fixedly connected to the outer surface of the two rotating blocks 2. The outer surfaces of the two pulley 4 and the two pulley 3 are connected together by belt drive.

[0013] Preferably, the limiting component includes two connecting plates. An L-shaped rod (first) is fixedly connected to the left upper end of each of the two connecting plates. An L-shaped rod (second) is fixedly connected to the middle upper end of each of the two connecting plates. A reinforcing rod is fixedly connected to the adjacent ends of the L-shaped rods (first and second) on the same side. A partition is fixedly connected to the adjacent ends of the vertical portions of the two L-shaped rods (second). A shaped plate is fixedly connected to the adjacent ends of the horizontal portions of the two L-shaped rods (first). A placement plate is fixedly connected to the right upper end of each of the two shaped plates. A placement groove (first) is formed in the middle of the left end of each of the two placement plates. A placement groove (second) is formed in the middle of the adjacent ends of each of the two shaped plates.

[0014] Preferably, C-shaped grooves are provided on the outer sides of the two irregularly shaped plates at their far ends, and placement grooves are provided on the sides of the two partitions at their close left ends. The inclined surfaces of the two irregularly shaped plates and the upper ends of the reinforcing rods on the same side are all fixedly connected to a fixing rod. The upper parts of the left and right ends of the two clamping plates are respectively fixedly connected to the close ends of the connecting plates on the same side.

[0015] Preferably, the welding assembly includes a guide block slidably connected to the inner surface of the C-shaped groove, a rotating plate rotatably connected to the rear end of the guide block, an arc welding gun fixedly connected to the upper end of the rotating plate, and a handle fixedly connected to the rear end of the arc welding gun.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention, through the coordinated operation of positioning components, transmission components and limiting components, can automatically clamp and fix the plate to be welded at the right angle position of the H-shaped steel frame, solving the problem of difficult positioning and easy displacement of the plate in the traditional welding process. Positioning and welding can be completed without the assistance of many people, effectively reducing the required manual labor intensity and improving welding processing efficiency.

[0017] 2. In this invention, the placement groove 1, placement groove 2, and placement groove 3 on the limiting component cooperate with the irregular plate and other structures to form a limiting space that matches the shape of the plate, ensuring that the plate remains stable during the welding process; at the same time, the welding component slides along the C-shaped groove, causing the arc welding gun to move along the preset path, ensuring the accuracy of the welding position and the consistency of the weld, thereby improving the welding quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the front side of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the positioning component of the present invention; Figure 4This is a schematic diagram of the overall structure of the transmission assembly of the present invention; Figure 5 This is a partial cross-sectional view of the transmission component of the present invention; Figure 6 This is a bottom view of the positioning component and transmission component of the present invention; Figure 7 This is a schematic diagram of the overall exploded structure of the limiting component of the present invention; Figure 8 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A in the middle; Figure 9 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B; Figure 10 For the present invention Figure 7 Enlarged schematic diagram of the structure at point C.

[0019] In the diagram: 1. H-shaped steel frame one; 2. H-shaped steel frame two; 3. Positioning assembly; 31. Clamping plate; 32. Trapezoidal groove; 33. Top plate; 34. Double-sided threaded rod one; 35. Pulley one; 36. Fixed platform; 37. Pulley two; 38. Transmission rod; 39. Pulley three; 311. Limiting ring; 312. Concave ring; 313. Mounting block; 4. Transmission assembly; 41. H-shaped plate; 42. Slider; 43. Double-sided threaded rod two; 44. Knob; 45. Transmission assembly; 451. Double-sided threaded rod three; 452. Limiting groove one; 453. Threaded block; 454. Limiting groove two; 455. Limiting groove three; 456. Rectangular groove; 457. Extension rod; 458. Gear; 459. Rack; 450. Rectangular block; 461. Rotating block one; 462. Pulley four; 463. Rotating block two; 464. Tensioning wheel; 5. Limiting assembly; 51. Connecting plate; 52. L-shaped rod one; 53. L-shaped rod two; 54. Reinforcing rod; 55. Irregular plate; 56. Placement plate; 57. Placement groove one; 58. Placement groove two; 50. Partition plate; 541. Placement groove three; 551. C-shaped groove; 552. Fixing rod; 6. Welding assembly; 61. Guide block; 62. Rotating plate; 63. Arc welding gun; 64. Handle. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] Example 1, as Figure 1 and Figure 2As shown, an arc welding device for prefabricated steel frame processing includes two H-shaped steel frames 1. One end of the two H-shaped steel frames 1 is fixedly connected to an H-shaped steel frame 2. A positioning component 3 is slidably installed on the front side of the inner surface and the rear side of the outer surface of the H-shaped steel frame 2. A transmission component 4 is slidably installed on the lower side of the outer surface of the positioning component 3. Limiting components 5 are fixedly installed on the left side and the right side of the outer surface of the positioning component 3. Welding components 6 are slidably installed on the outer surfaces of the two limiting components 5.

[0022] During use, the upper surface of the transmission component 4 is first brought into contact with the lower surface of the H-shaped steel frame 2. Then, by controlling the transmission component 4, the transmission component 4 can drive the positioning component 3 to clamp onto the outer surface of the H-shaped steel frame 2. Next, by controlling the positioning component 3, the positioning components 3 on both sides can support and limit the concave parts on the front and rear sides of the H-shaped steel frame 2. During the clamping process of the positioning component 3, the two limiting components 5 on the left and the two limiting components 5 on the right will move inward at the same time and clamp and limit the plates used for welding on the same side to facilitate subsequent arc welding processing. After completing the installation steps of positioning component 3, transmission component 4 and limiting component 5, the plate to be welded can be inserted into the groove opened at the corresponding position on the surface of limiting component 5. Then, the welding component 6 on the same side is controlled to slide on the outer surface of limiting component 5 on the same side, and the arc welding operation of the prefabricated steel frame can be completed. During the entire arc welding process, there is no need for manual support of the welded parts, which improves welding efficiency and ensures safety during welding.

[0023] Example 2, as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the positioning component 3 includes two clamping plates 31. Each clamping plate 31 has a trapezoidal groove 32 in the middle of its close-to-each end. Two symmetrically distributed top plates 33 are slidably connected to the left and right sides of the close-to-each end of the two clamping plates 31. The inner surfaces of the two top plates 33 on the same side are threaded with a bidirectional threaded rod 34. The outer surfaces of the four bidirectional threaded rods 34 are fixedly connected with pulleys 35. The middle of the far-to-each end of the two clamping plates 31 is fixedly connected with a fixed platform 36. The middle of the far-to-each side of the upper end of the two fixed platforms 36 is rotatably connected with pulleys 37. The inner surfaces of the two pulleys 37 are fixedly connected with transmission rods 38. The lower ends of the transmission rods 38 on the same side pass through the upper end of the fixed platform 36 on the same side and extend to the lower side. The lower outer surfaces of the two transmission rods 38 are fixedly connected with pulleys 39.

[0024] Furthermore, limit rings 311 are fixedly connected to the upper and lower sides of the middle of the outer surface of the four bidirectional threaded rods 34. Concave rings 312 are slidably connected to the outer surface of the limit rings 311 on the same side. Mounting blocks 313 are fixedly connected to the outer surface of the concave rings 312 on the same side and the end of the clamping plate 31 on the same side that are close to each other.

[0025] Furthermore, the outer surfaces of the two pulleys 35 and 37 on the same side are connected by belt drive.

[0026] Furthermore, the transmission assembly 4 includes an H-shaped plate 41, with the lower ends of two clamping plates 31 slidably connected to the upper end of the H-shaped plate 41. Slider 42 is fixedly connected to the lower left and lower right ends of the two clamping plates 31. The two sliders 42 on the left and the two sliders 42 on the right are slidably connected to the left and right ends of the H-shaped plate 41, respectively. The inner surfaces of the two sliders 42 on the same side are threaded with a bidirectional threaded rod 43. A knob 44 is fixedly connected to the rear side of the outer surface of the two bidirectional threaded rods 43. A transmission assembly 45 is slidably installed on the inner surface of the H-shaped plate 41.

[0027] Furthermore, the transmission component 45 includes a bidirectional threaded rod 451. A limiting groove 452 is formed in the middle of the upper end of the H-shaped plate 41. The left and right ends of the bidirectional threaded rod 451 are slidably connected to the left and right walls of the inner surface of the limiting groove 452, respectively. Threaded blocks 453 are threadedly connected to the left and right sides of the outer surface of the bidirectional threaded rod 451. Both threaded blocks 453 are slidably connected to the inner surface of the bidirectional threaded rod 451. A limiting groove 454 penetrating the lower end of the H-shaped plate 41 is formed in the middle of the bottom wall of the limiting groove 452. Limiting grooves 455 are formed on the front left and front right sides of the upper end of the H-shaped plate 41. Rectangular grooves 456 are formed on the bottom walls of both limiting grooves 455. The left side of the inner surface of the two rectangular grooves 456 is... Both the middle of the wall and the middle of the right side of the inner surface are rotatably connected to an extension rod 457. The ends of the two extension rods 457 that are close to each other pass through the rectangular groove 456 on the same side and are fixedly connected to the bidirectional threaded rod 451. The outer surfaces of the two extension rods 457 that are close to each other are fixedly connected to a gear 458. The upper left side wall and the upper right side wall of the inner surface of the two rectangular grooves 456 are slidably connected to a rack 459. The racks 459 on the same side mesh with the gears 458 on the same side. The upper front parts of the two racks 459 are fixedly connected to the lower end of the front clamping plate 31 through a connecting block. The lower ends of the two threaded blocks 453 are fixedly connected to a rectangular block 450. The two rectangular blocks 450 are slidably connected to the inner surface of the limiting groove 454.

[0028] Furthermore, rotating block 461 is rotatably connected to the lower ends of the two rectangular blocks 450 that are close to each other. Pulley 462 is fixedly connected to the outer surface of the two rotating blocks 461. Rotating block 463 is rotatably connected to the lower ends of the two rectangular blocks 450 that are far from each other. Tensioning wheel 464 is fixedly connected to the outer surface of the two rotating blocks 463. The outer surfaces of the two pulleys 462 and the two pulleys 39 are connected together by belt drive.

[0029] Furthermore, the limiting component 5 includes two connecting plates 51. An L-shaped rod 52 is fixedly connected to the upper left side of each of the two connecting plates 51. An L-shaped rod 53 is fixedly connected to the upper middle of each of the two connecting plates 51. A reinforcing rod 54 is fixedly connected to the adjacent ends of the L-shaped rod 52 and the L-shaped rod 53 on the same side. A partition plate 50 is fixedly connected to the adjacent ends of the vertical parts of the two L-shaped rods 53. A shaped plate 55 is fixedly connected to the adjacent ends of the horizontal parts of the two L-shaped rods 52. A placement plate 56 is fixedly connected to the upper right side of each of the two shaped plates 55. A placement groove 57 is opened in the middle of the left end of each of the two placement plates 56. A placement groove 58 is opened in the middle of the adjacent ends of each of the two shaped plates 55.

[0030] Furthermore, C-shaped grooves 551 are provided on the outer sides of the two irregular plates 55 at their far ends, and placement grooves 541 are provided on the left sides of the two partitions 50 at their close sides. The inclined surfaces of the two irregular plates 55 and the upper ends of the reinforcing rods 54 on the same side are both fixedly connected to fixing rods 552. The upper left and upper right ends of the two clamping plates 31 are respectively fixedly connected to the close ends of the connecting plates 51 on the same side.

[0031] Furthermore, the welding assembly 6 includes a guide block 61, which is slidably connected to the inner surface of the C-shaped groove 551. A rotating plate 62 is rotatably connected to the rear end of the guide block 61. An arc welding gun 63 is fixedly connected to the upper end of the rotating plate 62, and a handle 64 is fixedly connected to the rear end of the arc welding gun 63.

[0032] During use, the plate to be welded is first placed on the vertical side of the H-shaped steel frame 2 and the two H-shaped steel frames 1 on both sides. Then, the lower end of the H-shaped plate 41 is attached to the middle of the lower end of the H-shaped steel frame 2. By rotating the knobs 44 on both sides, the knobs 44 on both sides simultaneously drive the bidirectional threaded rod 43 fixedly connected to them to rotate. When the bidirectional threaded rod 43 on both sides rotates, since the sliders 42 on the left and right sides are respectively threaded to the outer surface of the bidirectional threaded rod 43 on the same side, and the sliders 42 on the left and right sides are respectively fixedly connected to the clamping plate 31 on the same side, the sliders 42 on the left and right sides can move inward at the same time, thereby driving the two clamping plates 31 to move inward at the same time, so that the two clamping plates 31 are attached to the front and back sides of the H-shaped steel frame 2. During the simultaneous approach of the two clamping plates 31, since the fixed platform 36 on the same side is fixedly connected to the clamping plate 31 on the same side, and the pulley 37 on the same side is rotatably connected to the upper end of the clamping plate 31 on the same side, the pulley 37 on the same side can drive the transmission rod 38 fixedly connected to the inner surface to move inward simultaneously. When the transmission rods 38 on both sides drive the pulley 39 fixedly connected to the lower side of their outer surfaces to move inward simultaneously, the lower left and right sides of the clamping plate 31 at the front can simultaneously drive the rack 459 fixedly connected to it to move backward on the inner surface of the rectangular groove 456 on the same side through the connecting block fixedly connected to it. During the rearward movement of the inner surface of the rectangular groove 456, the rack 459 can drive the gear 458 meshing with it to rotate. When the gears 458 on both sides rotate, the extension rod 457 on the same side rotates with the gear 458 on the same side on the inner surface of the rectangular groove 456 on the same side. The extension rods 457 on both sides can simultaneously drive the bidirectional threaded rod 451 fixedly connected to it to rotate. When the bidirectional threaded rod 451 rotates, since the outer surface of the bidirectional threaded rod 451 is set with bidirectional threads, the two threaded blocks 453 connected to its outer surface can move outward in the limiting groove 452. At the same time, the two threaded blocks 453 can drive the rectangular blocks 450 fixedly connected at their lower ends to slide in the limiting groove 454, thereby causing the two rectangular blocks 450 to simultaneously drive the rotating blocks 461 and 463 rotatably connected at their lower ends to move outwards. During this process, the rotating blocks 461 on both sides can drive the pulleys 462 fixedly connected to their outer surfaces to move outwards. When the pulleys 462 on both sides move outwards, they can spread open the belts that are jointly connected to the outer surfaces of the two pulleys 462 and the two pulleys 39. At the same time, the rotating block 463 connected to the lower end of the rectangular block 450 on both sides can drive the tension wheel 464 fixedly connected to its outer surface to move outward at the same time. The tension wheels 464 on both sides are always in contact with the surface of the pulley 462 on the same side, so as to prevent the belt from falling off when it is spread out. Next, by rotating pulley 37 on either side, the outer surfaces of pulley 37 on the same side and the two pulleys 35 on the same side are connected by a belt drive. To ensure normal belt transmission at this position, this solution provides a trapezoidal groove 32 in the middle of the outer surface of the clamping plate 31 on the same side, and the rotational power is transmitted to pulley 39 by the transmission rod 38. Therefore, when pulley 37 is rotated, the two pulleys 39 also rotate simultaneously. Under the action of the belt drive connection, the bidirectional threaded rods 34 on both sides can rotate simultaneously. When the threaded rod 34 rotates, the limiting rings 311 fixedly connected to the upper and lower sides of the middle part of the outer surface of the double threaded rod 34 are respectively rotatably connected to the inner surface of the concave ring 312 on the same side, and the mounting block 313 fixedly connected to the concave ring 312 is fixedly connected to the clamping plate 31 on the same side. Therefore, the double threaded rod 34 can be limited. Then, when the double threaded rod 34 rotates, the top plate 33 that can be threadedly connected to the outer surface of the double threaded rod 34 can move outward at the same time, so that the top plate 33 is engaged in the recesses on the front and rear sides of the outer surface of the H-shaped steel frame 2. The above steps describe the installation of the entire device onto the surface of the H-shaped steel frame 2. After installation, the connecting plate 51 on the front and rear sides moves synchronously with the clamping plates 31, causing the connecting plate 51 to fit against the front and rear sides of the outer surface of the H-shaped steel frame 2. The connecting plate 51, through L-shaped rod 52, L-shaped rod 53, and reinforcing rod 54, drives the corresponding irregularly shaped plates 55 closer together. Since the shape of the plate to be welded matches the cavity formed by the placement groove 2 58 and the irregularly shaped plates 55, the plate can be inserted into the gap between the two irregularly shaped plates 55 on the same side. The protruding part of the plate will fit against the placement groove 2 58 on the same side. For details, please refer to [reference needed]. Figure 7 Next, insert the auxiliary fixing plates into the placement slot 1 57 and placement slot 3 541 respectively. Then, simply pull the handle 64 in sequence, so that the handle 64 drives the arc welding gun 63 fixedly connected to it to move. When the arc welding gun 63 moves, the arc welding gun 63 will drive the rotating plate 62 fixedly connected to its lower outer surface to move. The rotating plate 62 will drive the guide block 61 rotatably connected to it to slide in the C-shaped groove 551 on the same side. Since the welding wire is installed inside the front end of the arc welding gun 63, when the arc welding gun 63 moves along the path of the C-shaped groove 551, the path passes through the edge where the plate and the H-shaped steel frame 1 and H-shaped steel frame 2 fit together, as well as the connection between the plate and the auxiliary plate, thereby achieving the welding of the plate at the right angle on the left and right sides of the H-shaped steel frame 1 and H-shaped steel frame 2, thus completing the arc welding and fixing of the steel frame.

[0033] The arc welding gun 63 mentioned above is a conventional design in the prior art. In this solution, it is only necessary to ensure that welding wire can be installed inside and that arc welding can be performed. Its specific shape, installation method, circuit connection method and control method are all conventional designs, so this solution will not elaborate on them in detail.

[0034] The process of rotating the second pulley 37 described above can be achieved by using an external handle, which is a conventional design in the prior art. In this solution, it is only necessary to install the handle on the upper side of the second pulley 37 to drive the second pulley 37 to rotate. The specific installation method and shape can be adjusted according to actual production needs, so this solution will not elaborate on them in detail.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An arc welding device for processing prefabricated steel frames, comprising two H-shaped steel frames (1), characterized in that: Two H-shaped steel frames (1) are fixedly connected to each other at one end. A positioning component (3) is slidably installed on the front side of the inner surface and the rear side of the outer surface of the H-shaped steel frame (2). A transmission component (4) is slidably installed on the lower side of the outer surface of the positioning component (3). A limit component (5) is fixedly installed on the left side and the right side of the outer surface of the positioning component (3). A welding component (6) is slidably installed on the outer surface of both limit components (5).

2. The arc welding device for prefabricated steel frame processing according to claim 1, characterized in that: The positioning component (3) includes two clamping plates (31). A trapezoidal groove (32) is provided in the middle of the two clamping plates (31) that are close to each other. Two symmetrically distributed top plates (33) are slidably connected to the left and right sides of the two clamping plates (31) that are close to each other. The inner surfaces of the two top plates (33) on the same side are threaded together with a bidirectional threaded rod (34). The outer surfaces of the four bidirectional threaded rods (34) are fixedly connected with a pulley (35). The middle of the two clamping plates (31) that are far apart from each other is fixedly connected with a fixed platform (36). The middle of the upper part of the two fixed platforms (36) that are far apart from each other is rotatably connected with a pulley (37). The inner surfaces of the two pulleys (37) are fixedly connected with a transmission rod (38). The lower end of the transmission rod (38) on the same side passes through the upper end of the fixed platform (36) on the same side and extends to the lower side. The lower side of the outer surface of the two transmission rods (38) is fixedly connected with a pulley (39).

3. The arc welding device for prefabricated steel frame processing according to claim 2, characterized in that: Limiting rings (311) are fixedly connected to the upper side of the middle part of the outer surface and the lower side of the middle part of the outer surface of the four bidirectional threaded rods (34). The outer surface of the limiting rings (311) on the same side is slidably connected to concave rings (312). The outer surface of the concave rings (312) on the same side and the end of the clamping plate (31) on the same side that are close to each other are fixedly connected to mounting blocks (313).

4. The arc welding device for prefabricated steel frame processing according to claim 2, characterized in that: The outer surfaces of the two pulleys on the same side (35) and the pulley on the same side (37) are connected by belt drive.

5. The arc welding device for prefabricated steel frame processing according to claim 2, characterized in that: The transmission assembly (4) includes an H-shaped plate (41), the lower ends of the two clamping plates (31) are slidably connected to the upper end of the H-shaped plate (41), the lower left and lower right ends of the two clamping plates (31) are fixedly connected to sliders (42), the two sliders (42) on the left and the two sliders (42) on the right are slidably connected to the left and right ends of the H-shaped plate (41) respectively, the inner surfaces of the two sliders (42) on the same side are threadedly connected to a double-threaded rod (43), the rear side of the outer surface of the two double-threaded rods (43) are fixedly connected to a knob (44), and the inner surface of the H-shaped plate (41) is slidably installed with a transmission assembly (45).

6. The arc welding device for prefabricated steel frame processing according to claim 5, characterized in that: The transmission component (45) includes a bidirectional threaded rod three (451). A limiting groove one (452) is opened in the middle of the upper end of the H-shaped plate (41). The left and right ends of the bidirectional threaded rod three (451) are slidably connected to the left side wall and the right side wall of the inner surface of the limiting groove one (452), respectively. Threaded blocks (453) are threadedly connected to the left and right sides of the outer surface of the bidirectional threaded rod three (451). The two threaded blocks (453) are slidably connected to the inner surface of the bidirectional threaded rod three (451). A limiting groove two (454) is opened in the middle of the bottom wall of the limiting groove one (452) and penetrates the lower end of the H-shaped plate (41). A limiting groove three (455) is opened on the front left side and the front right side of the upper end of the H-shaped plate (41). A rectangular groove (456) is opened on the bottom wall of the two limiting groove three (455). The left side wall of the inner surface of the two rectangular grooves (456) is... Both the middle part and the middle part of the right side wall of the inner surface are rotatably connected to an extension rod (457). The ends of the two extension rods (457) that are close to each other pass through the rectangular groove (456) on the same side and are fixedly connected to the bidirectional threaded rod (451). The outer surfaces of the two extension rods (457) that are close to each other are fixedly connected to a gear (458). The upper part of the left side wall and the upper part of the right side wall of the inner surface of the two rectangular grooves (456) are slidably connected to a rack (459). The racks (459) on the same side mesh with the gears (458) on the same side. The front part of the upper end of the two racks (459) is fixedly connected to the lower end of the clamping plate (31) on the front side through a connecting block. The lower end of the two threaded blocks (453) is fixedly connected to a rectangular block (450). The two rectangular blocks (450) are slidably connected to the inner surface of the limiting groove (454).

7. The arc welding device for prefabricated steel frame processing according to claim 6, characterized in that: Rotating block one (461) is rotatably connected to the side of the two rectangular blocks (450) that are close to each other at the bottom. Pulley four (462) is fixedly connected to the outer surface of the two rotating blocks one (461). Rotating block two (463) is rotatably connected to the side of the two rectangular blocks (450) that are far from each other at the bottom. Tensioning wheel (464) is fixedly connected to the outer surface of the two rotating blocks two (463). The outer surfaces of the two pulley four (462) and the outer surfaces of the two pulley three (39) are connected together by belt drive.

8. The arc welding device for prefabricated steel frame processing according to claim 2, characterized in that: The limiting component (5) includes two connecting plates (51). An L-shaped rod (52) is fixedly connected to the upper left side of each of the two connecting plates (51). An L-shaped rod (53) is fixedly connected to the upper middle of each of the two connecting plates (51). A reinforcing rod (54) is fixedly connected to the end of the L-shaped rod (52) and the L-shaped rod (53) on the same side that are close to each other. A partition plate (50) is fixedly connected to the end of the vertical part of the two L-shaped rods (53) that are close to each other. A shaped plate (55) is fixedly connected to the end of the horizontal part of the two L-shaped rods (52) that are close to each other. A placement plate (56) is fixedly connected to the upper right side of each of the two shaped plates (55). A placement groove (57) is opened in the middle of the left end of each of the two placement plates (56). A placement groove (58) is opened in the middle of the end of the two shaped plates (55) that are close to each other.

9. The arc welding device for prefabricated steel frame processing according to claim 8, characterized in that: C-shaped grooves (551) are provided on the outer side of the two irregular plates (55) at their far ends. Placement grooves (541) are provided on the side of the left end of the two partitions (50) that are close to each other. Fixing rods (552) are fixedly connected to the inclined surfaces of the two irregular plates (55) and the upper ends of the reinforcing rods (54) on the same side. The upper parts of the left and right ends of the two clamps (31) are fixedly connected to the ends of the connecting plates (51) on the same side that are close to each other.

10. An arc welding device for prefabricated steel frame processing according to claim 9, characterized in that: The welding assembly (6) includes a guide block (61), which is slidably connected to the inner surface of the C-shaped groove (551). A rotating plate (62) is rotatably connected to the rear end of the guide block (61). An arc welding gun (63) is fixedly connected to the upper end of the rotating plate (62), and a handle (64) is fixedly connected to the rear end of the arc welding gun (63).

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