A welding device for steel structure processing

Abstract

The application discloses a welding device for steel structure processing and particularly relates to the field of steel structure welding, and comprises a supporting seat, a steel material arranged on the top of the supporting seat, a welding gun arranged on the top of the supporting seat, and a clamping mechanism and a supporting mechanism arranged on one side of the supporting seat and the welding gun. The clamping mechanism and the supporting mechanism are arranged, the structure is formed by two ring frames, the rubber rollers on the two ring frames control the movement of the welding gun on the outer wall of the steel material, in the using process, the fixed rod is unlocked by the push rod at the bottom of the welding gun to drive the rubber rollers to move linearly on the outer wall of the steel material, the welding gun can be kept stable in the horizontal direction on the steel material, the stability of linear welding is improved, the locking mechanism is arranged, the welding gun can be circularly rotated by the circular ring formed by the two ring frames, and annular welding operation is facilitated.

Description

Technical Field

[0001] This invention relates to the field of steel structure welding technology, and more specifically, to a welding apparatus for steel structure processing. Background Technology

[0002] Steel structures are widely used in industrial plants, large stadiums, and super high-rise buildings due to their advantages such as high strength, light weight, and fast construction speed. Welding, as the most critical connection process in steel structure manufacturing and installation, directly affects the safety, cost, and schedule of the entire project.

[0003] However, traditional steel structure processing and welding involves manually holding the welding gun. Existing technology lacks structures that can stably perform horizontal welding on steel structures, that is, there is a lack of equipment that can stably support the welding path of the steel structure to ensure the stability of the welding. Moreover, manual holding of the welding gun for a long time consumes a lot of human physical strength and it is difficult to maintain a stable state for a long time, which affects the effect of steel structure processing and welding. Meanwhile, existing technologies lack structures that can provide circumferential welding methods. In other words, when facing the need to perform circumferential welding on steel structures, there is a lack of structures that can maintain stable welding. The traditional manual method of holding the welding gun is difficult to maintain stability, which affects the effect of circumferential welding in steel structure processing.

[0004] To address the aforementioned technical shortcomings, a solution is provided. Summary of the Invention

[0005] The present invention provides a welding apparatus for steel structure processing, in order to solve the technical problems mentioned in the background art, namely, the lack of a structure capable of smoothly performing horizontal welding of steel structures and the lack of a structure capable of providing a circumferential welding method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding device for steel structure processing, comprising a support base, a steel material disposed on the top of the support base, a welding torch disposed on the top of the support base, a clamping mechanism and a supporting mechanism disposed on one side of the support base and the welding torch, the clamping mechanism and the supporting mechanism being able to clamp the two sides of the steel material, and being able to slide freely on both sides of the steel material after being unlocked by pressing, so as to facilitate adjustment of the welding position; the top of the welding torch being provided with a locking mechanism, the locking mechanism being able to unlock the state of the welding torch and being able to freely adjust the position requiring circumferential welding through the arc-shaped structure.

[0007] In a preferred embodiment, the clamping mechanism includes a plurality of sliding support rods slidably mounted on the inner wall of the support base. A belt support plate is fixedly mounted on one side of the plurality of sliding support rods. The belt support plate is horizontally arranged. Ring frames are rotatably mounted on both sides of the bottom of the belt support plate. Two ring frames are symmetrically arranged and penetrate the top of both sides of the belt support plate. A groove is formed on the top outer wall of the two ring frames. The welding torch is slidably mounted on the inner wall of the groove. A first locking block is fixedly mounted on the top outer wall of one of the ring frames. A second locking block is provided on the other side of the first locking block. The second locking block is fixedly mounted on the top outer wall of the other ring frame. The first locking block and the second locking block are staggered. Insertion rods are inserted into the inner walls of the first locking block and the second locking block. The insertion rods are slidably mounted on the outer wall of the second locking block.

[0008] In a preferred embodiment, a first magnetic plate is fixedly installed on the middle outer wall of the two ring frames, and a second magnetic plate is provided on one side of the first magnetic plate. The first magnetic plate and the second magnetic plate are arranged parallel to each other and are arranged in a repulsive manner. A push cylinder is fixedly installed on the outer wall of the second magnetic plate. The push cylinder is arranged in a horizontal state, and a sleeve is slidably installed on the outer wall of the push cylinder. The sleeve is fixedly installed on the outer wall of the ring frame.

[0009] In a preferred embodiment, a belt frame is fixedly installed on the other side of the pusher, the belt frame is set in a horizontal state, and a rubber roller is rotatably installed on one side of the belt frame, the outer wall of the rubber roller being in contact with the outer wall of the steel.

[0010] In a preferred embodiment, the belt support mechanism includes a plurality of insertion holes formed on the outer wall of the rubber roller, the plurality of insertion holes being arranged in a ring at equal intervals, a fixed rod being provided on one side of the plurality of insertion holes, the fixed rod being slidably mounted on the outer wall of the belt frame, a first toothed plate being fixedly mounted on one side of the fixed rod, a gear being meshed on the top of the first toothed plate, the gear being rotatably mounted on the inner wall of the belt frame, a second toothed plate being meshed on the other side of the gear, the second toothed plate being staggered with the first toothed plate, and the second toothed plate penetrating the top of the belt frame.

[0011] In a preferred embodiment, a lifting plate is fixedly installed on the top of the second toothed plate. The lifting plate is slidably installed on the bottom inner wall of the ring frame. The top of the lifting plate is arc-shaped. The lifting plate and the ring frame are parallel to each other. The bottom of the lifting plate extends out of the bottom of the ring frame. There are two lifting plates, which are symmetrically arranged. The outer walls of the two lifting plates are in contact with each other. One of the lifting plates has an insert on its opposite side. The insert extends into the inner wall of the other lifting plate. A plurality of top support springs are fixedly installed on the top of the lifting plate. The plurality of top support springs are fixedly installed on the inner wall of the ring frame.

[0012] In a preferred embodiment, the outer wall of the lifting plate is provided with a pull rod, the pull rod is L-shaped and perpendicular to the bottom of the lifting plate. There are two pull rods, which are symmetrically arranged. A fixing plate is slidably installed on one side of both pull rods. The fixing plate is vertically arranged and fixedly installed on the bottom of the welding torch. A connecting rod is rotatably installed on the outer wall of the two pull rods. The connecting rod is horizontally arranged. A connecting strip is hinged to the outer wall of the connecting rod. The connecting strip is inclined upward. A lever is hinged to the top of the connecting strip. The lever is rotatably installed on the outer wall of the fixing plate and is horizontally arranged.

[0013] In a preferred embodiment, the locking mechanism includes a rotary shaft rotatably mounted on the top of the welding torch, the rotary shaft being vertically positioned, a threaded rod fixedly mounted at the bottom of the rotary shaft, the threaded rod being threadedly connected to the inner wall of the welding torch, and a squeezing block rotatably mounted at the bottom of the threaded rod, the bottom sides of the squeezing block being inclined.

[0014] In a preferred embodiment, the extrusion block has two clamping plates on both sides, and the two clamping plates are slidably installed on the bottom of the welding gun. The two clamping plates are arranged symmetrically to each other, and the outer walls of the two clamping plates are in contact with the bottom outer wall of the extrusion block. A tension spring is fixedly installed on the outer walls of the two clamping plates. Clamping posts are fixedly installed on the outer walls of the two clamping plates respectively. The clamping posts are perpendicular to the clamping plates. The inner wall of the groove on the top outer wall of the ring frame has multiple retaining holes. The multiple retaining holes are arranged in a ring at equal intervals, and the multiple retaining holes are configured to cooperate with the clamping posts.

[0015] The technical effects and advantages of this invention are as follows: 1. This invention, by setting up a clamping mechanism and a supporting mechanism, uses a structure composed of two ring frames, with rubber rollers on the two ring frames controlling the movement of the welding torch on the outer wall of the steel. During use, the lever at the bottom of the welding torch drives the fixed rod to unlock the rubber rollers, facilitating the linear movement of the rubber rollers on the outer wall of the steel. This enables the welding torch to maintain horizontal stability on the steel, improving the stability of linear welding.

[0016] 2. The locking mechanism is also provided, which allows the welding torch to rotate in a circular motion through the two ring frames, making it convenient for circular welding operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a front view of the present invention.

[0019] Figure 3 This is a partial vertical sectional view of the clamping mechanism in this invention.

[0020] Figure 4 For the present invention Figure 3 Enlarged view of the structure of part A.

[0021] Figure 5 This is a partial sectional view of the top of the clamping mechanism in this invention.

[0022] Figure 6 This is a vertical sectional view of the support mechanism in this invention.

[0023] Figure 7 This is a cross-sectional view of the locking mechanism in this invention.

[0024] The attached diagram is labeled as follows: 1. Support base; 2. Steel; 3. Welding torch; 4. Clamping mechanism; 41. Sliding support rod; 42. With support plate; 43. Ring frame; 44. First locking block; 45. Second locking block; 46. Insert rod; 47. First magnetic plate; 48. Second magnetic plate; 49. Push cylinder; 410. Sleeve; 411. Belt frame; 412. Rubber roller; 5. Belt support mechanism; 51. Insertion hole; 52. Fixed rod; 53. First toothed plate; 54. Gear; 55. Second toothed plate; 56. Lifting plate; 57. Top support spring; 58. Pull rod; 59. Fixing plate; 510. Same as belt rod; 511. Same as pull bar; 512. Turning rod; 6. Locking mechanism; 61. Turning shaft; 62. Threaded rod; 63. Extrusion block; 64. Clamping plate; 65. Tension limiting spring; 66. Clamping post; 67. Fixing hole. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0026] Existing technologies lack structures capable of smoothly performing horizontal welding on steel structures; that is, they lack equipment that can stably support the welding path to ensure welding stability. Furthermore, prolonged manual holding of the welding torch is physically demanding and difficult to maintain a stable state, thus affecting the welding results. To address this problem, the following technical solution is proposed: Refer to the instruction manual appendix Figures 1-7 A welding device for steel structure processing, such as Figure 1 and Figure 2As shown, the device includes a support base 1, a steel material 2 on the top of the support base 1, a welding torch 3 on the top of the support base 1, a clamping mechanism 4 and a supporting mechanism 5 on one side of the support base 1 and the welding torch 3. The clamping mechanism 4 and the supporting mechanism 5 can clamp the two sides of the steel material 2, and can be unlocked by pressing and can slide freely on both sides of the steel material 2 to facilitate adjustment of the welding position. The top of the welding torch 3 is equipped with a locking mechanism 6, which can unlock the state of the welding torch 3 and can be freely adjusted to the position required for ring welding through the arc-shaped structure.

[0027] like Figure 3 , Figure 4 and Figure 5 As shown, the clamping mechanism 4 includes multiple sliding support rods 41 slidably installed on the inner wall of the support base 1. A support plate 42 is fixedly installed on one side of the multiple sliding support rods 41. The support plate 42 is set in a horizontal state. Ring frames 43 are rotatably installed on both sides of the bottom of the support plate 42. The two ring frames 43 are symmetrically arranged and pass through the top of both sides of the support plate 42. A groove is opened on the top outer wall of the two ring frames 43. The welding torch 3 is slidably installed on the inner wall of the groove. A first locking block 44 is fixedly installed on the top outer wall of one of the ring frames 43. A second locking block 45 is provided on the other side of the first locking block 44. The second locking block 45 is fixedly installed on the top outer wall of the other ring frame 43. The first locking block 44 and the second locking block 45 are staggered. An insert rod 46 is inserted into the inner wall of the first locking block 44 and the second locking block 45. The insert rod 46 is slidably installed on the outer wall of the second locking block 45. By bringing the tops of the two ring frames 43 close together and fastening them together, and by driving the first locking block 44 and the second locking block 45 to be inserted into each other through the two ring frames 43 respectively, the first locking block 44 and the second locking block 45 are fixed by passing through the insertion rod 46.

[0028] like Figure 3 and Figure 4 As shown, a first magnetic plate 47 is fixedly installed on the outer wall of the middle part of the two ring frames 43. A second magnetic plate 48 is provided on one side of the first magnetic plate 47. The first magnetic plate 47 and the second magnetic plate 48 are arranged parallel to each other and are arranged in a repulsive manner. A push cylinder 49 is fixedly installed on the outer wall of the second magnetic plate 48. The push cylinder 49 is arranged in a horizontal state. A sleeve 410 is slidably installed on the outer wall of the push cylinder 49. The sleeve 410 is fixedly installed on the outer wall of the ring frame 43. After the two ring frames 43 form a ring, the two ring frames 43 drive the sleeve 410 and the pusher 49 to be in opposition.

[0029] like Figure 3 and Figure 4As shown, a bracket 411 is fixedly installed on the other side of the push cylinder 49. The bracket 411 is set in a horizontal state. A rubber roller 412 is rotatably installed on one side of the bracket 411. The outer wall of the rubber roller 412 is in contact with the outer wall of the steel 2. The pusher 49 drives the belt frame 411 and the rubber roller 412 to adhere to the outer wall of the steel 2. At this time, the outer wall of the steel 2 squeezes the rubber roller 412, causing the pusher 49 to move in the opposite direction. The second magnetic plate 48 on one side of the pusher 49 is opposite to the first magnetic plate 47 on the outer wall of the middle part of the ring frame 43. Due to the repulsive pressure of the first magnetic plate 47 and the second magnetic plate 48, the pusher 49 is squeezed in the opposite direction, thereby squeezing the rubber roller 412 to adhere tightly to the outer wall of the steel 2 and maintain stability.

[0030] like Figure 4 and Figure 6 As shown, the belt support mechanism 5 includes multiple insertion holes 51 opened on the outer wall of the rubber roller 412. The multiple insertion holes 51 are arranged in a ring at equal intervals. A fixed rod 52 is provided on one side of the multiple insertion holes 51. The fixed rod 52 is slidably installed on the outer wall of the belt frame 411. A first toothed plate 53 is fixedly installed on one side of the fixed rod 52. A gear 54 is meshed on the top of the first toothed plate 53. The gear 54 is rotatably installed on the inner wall of the belt frame 411. A second toothed plate 55 is meshed on the other side of the gear 54. The second toothed plate 55 and the first toothed plate 53 are arranged in an alternating manner. The second toothed plate 55 penetrates the top of the belt frame 411. The fixed rod 52 extends out of the outer wall of the bracket 411 and inserts into the insertion hole 51 on the outer wall of the rubber roller 412, so that the rubber roller 412 remains fixed. When the second toothed plate 55 moves upward, it can drive the first toothed plate 53 to move backward through the gear 54. That is, the first toothed plate 53 drives the fixed rod 52 to disengage from the rubber roller 412, so that the rubber roller 412 can rotate.

[0031] like Figure 6 As shown, a lifting plate 56 is fixedly installed on the top of the second toothed plate 55. The lifting plate 56 is slidably installed on the bottom inner wall of the ring frame 43. The top of the lifting plate 56 is arc-shaped. The lifting plate 56 and the ring frame 43 are parallel to each other. The bottom of the lifting plate 56 extends out of the bottom of the ring frame 43. There are two lifting plates 56. The two lifting plates 56 are symmetrically arranged. The outer walls of the two lifting plates 56 are in contact with each other. One of the lifting plates 56 has an insert on the opposite side. The insert extends into the inner wall of the other lifting plate 56. When the two ring frames 43 drive the two lifting plates 56 to approach each other, the two lifting plates 56 are connected to each other through the insert and form a fixed whole. Multiple top support springs 57 are fixedly installed on the top of the lifting plate 56. The multiple top support springs 57 are fixedly installed on the inner wall of the ring frame 43. When the two lifting plates 56 are pressed upward at any position, the lifting plates 56 squeeze multiple top support springs 57 and drive the second toothed plate 55 to move upward synchronously.

[0032] like Figure 4 and Figure 6 As shown, the outer wall of the lifting plate 56 is provided with a pull rod 58, which is L-shaped and perpendicular to the bottom of the lifting plate 56. There are two pull rods 58, which are symmetrically arranged. A fixing plate 59 is slidably installed on one side of the two pull rods 58. The fixing plate 59 is slidably installed on the bottom of the welding gun 3. The outer wall of the two pull rods 58 is rotatably installed with a belt rod 510, which is horizontal. The outer wall of the belt rod 510 is hinged with a pull bar 511, which is inclined upward. The top of the pull bar 511 is hinged with a lever 512, which is rotatably installed on the outer wall of the fixing plate 59 and is horizontal. By pulling up lever 512, lever 512 deflects upward, which in turn drives the pull bar 511 to move the belt rod 510 upward in sync. The belt rod 510 then pulls the pull rod 58 upward to press the lifting plate 56 upward.

[0033] In specific implementation, the tops of the two ring frames 43 are brought close together and fastened, and the two ring frames 43 respectively drive the first locking block 44 and the second locking block 45 to be inserted into each other. The first locking block 44 and the second locking block 45 are passed through by the insertion rod 46, thereby fixing the two ring frames 43. The rubber rollers 412 on the two ring frames 43 are in contact with the outer wall of the steel 2. At this time, the outer wall of the steel 2 squeezes the rubber rollers 412, causing the push cylinder 49 to move in the opposite direction. The second magnetic plate 48 on one side of the push cylinder 49 is opposite to the first magnetic plate 47 on the outer wall of the middle part of the ring frame 43. Due to the repulsive pressure of the first magnetic plate 47 and the second magnetic plate 48, the push cylinder 49 is squeezed in the opposite direction, thereby squeezing the rubber rollers 412 to fit tightly against the outer wall of the steel 2 and maintain stability. Furthermore, because the fixed rod 52 extends out of the outer wall of the bracket 411 and inserts into the insertion hole 51 on the outer wall of the rubber roller 412, the rubber roller 412 remains fixed. At this time, the welding torch 3 can only be fixed on the outer wall of the structure composed of two ring frames 43. When straight welding is required, by pulling up the lever 512, the lever 512 deflects upward, and the lever 512 drives the pull bar 511 to move the belt rod 510 upward synchronously. The belt rod 510 pulls the pull rod 58 upward to compress the lifting plate 56 upward. When the two lifting plates 56 are pressed upward at any position, the lifting plate 56 compresses multiple top support springs 57 and drives the second toothed plate 55 to move upward synchronously. When the second toothed plate 55 moves upward, it can drive the first toothed plate 53 to move backward through the gear 54. That is, the first toothed plate 53 drives the fixed rod 52 to disengage from the rubber roller 412, so that the rubber roller 412 can rotate. The unlocked rubber roller 412 can make the two ring frames 43 move in a straight line on the outer wall of the steel 2, that is, move horizontally through the support plate 42 under the limit of multiple sliding support rods 41, thereby providing stable support for the welding route of the steel structure and ensuring the stability of the welding. Example 2

[0034] Existing technologies lack structures capable of providing circumferential welding methods. Specifically, when circumferential welding of steel structures is required, there is a lack of structures that can maintain stable welding. Traditional manual welding torch handling is difficult to maintain stability, affecting the effectiveness of circumferential welding in steel structure processing. To solve this problem, the following technical solution is proposed: like Figure 2 and Figure 7 As shown, the locking mechanism 6 includes a rotating shaft 61 rotatably mounted on the top of the welding torch 3. The rotating shaft 61 is set in a vertical state. A threaded rod 62 is fixedly mounted on the bottom of the rotating shaft 61. The threaded rod 62 is threadedly connected to the inner wall of the welding torch 3. A squeezing block 63 is rotatably mounted on the bottom of the threaded rod 62. The bottom sides of the squeezing block 63 are set in an inclined state. Rotating the dial shaft 61 can drive the threaded rod 62 to rotate and move upward synchronously, and the threaded rod 62 will drive the extrusion block 63 to move upward synchronously.

[0035] like Figure 7 As shown, the extrusion block 63 has two clamping plates 64 on both sides. The two clamping plates 64 are slidably installed on the bottom of the welding gun 3. The two clamping plates 64 are symmetrically arranged. The outer walls of the two clamping plates 64 are in contact with the bottom outer wall of the extrusion block 63. The outer walls of the two clamping plates 64 are fixedly installed with a tension spring 65. The outer walls on both sides of the two clamping plates 64 are respectively fixedly installed with clamping posts 66. The clamping posts 66 are perpendicular to the clamping plates 64. The inner wall of the sliding groove on the top outer wall of the ring frame 43 is provided with multiple fixing holes 67. The multiple fixing holes 67 are arranged in a ring and equidistant. The multiple fixing holes 67 are mutually matched with the clamping posts 66. The extrusion block 63 can squeeze the clamping plates 64 on both sides, causing the clamping post 66 to be inserted into the fixing hole 67 opened in the sliding groove on the top outer wall of the ring frame 43, thereby ensuring the stable position of the welding torch 3.

[0036] In specific implementation, rotating the turntable shaft 61 can drive the threaded rod 62 to rotate and move upward synchronously. The threaded rod 62 then drives the extrusion block 63 to move upward synchronously. The extrusion block 63 moves upward and disengages from the two side clamping plates 64. The two side clamping plates 64 move closer to each other under the pull of the tension spring 65. The two clamping plates 64 then drive the clamping post 66 to disengage from the fixing hole 67, thereby unlocking the welding torch 3. The welding torch 3 can then perform circular rotation on the circular track formed by the two ring frames 43, which facilitates the ring welding operation. Furthermore, when the welding torch 3 rotates in a circular motion on the circular track formed by the two ring frames 43, the bottom of the welding torch 3 can still operate the lever 512 to unlock the rubber roller 412 of the lifting plate 56, thereby ensuring that the welding torch 3 can rotate in a circular motion while also maintaining horizontal movement, thus increasing the welding range.

[0037] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for steel structure processing, comprising a support base (1), wherein a steel material (2) is disposed on the top of the support base (1), and a welding torch (3) is disposed on the top of the support base (1), characterized in that, The support base (1) and the welding torch (3) are provided with a clamping mechanism (4) and a supporting mechanism (5) on one side. The clamping mechanism (4) and the supporting mechanism (5) can clamp the two sides of the steel (2) and can slide freely on both sides of the steel (2) after being unlocked by pressing, so as to adjust the welding position. The top of the welding torch (3) is provided with a locking mechanism (6). The locking mechanism (6) can unlock the state of the welding torch (3) and can freely adjust the position that needs to be welded in a ring through the arc-shaped structure.

2. The welding device for steel structure processing according to claim 1, characterized in that: The clamping mechanism (4) includes multiple sliding support rods (41) slidably installed on the inner wall of the support base (1). A belt support plate (42) is fixedly installed on one side of each of the multiple sliding support rods (41). The belt support plate (42) is horizontally arranged. Ring frames (43) are rotatably installed on both sides of the bottom of the belt support plate (42). The two ring frames (43) are symmetrically arranged and penetrate the top of both sides of the belt support plate (42). The top outer wall of the two ring frames (43) is provided with a sliding groove. The welding torch (3) slides... The first locking block (44) is fixedly installed on the top outer wall of one of the ring frames (43), and a second locking block (45) is provided on the other side of the first locking block (44). The second locking block (45) is fixedly installed on the top outer wall of the other ring frame (43). The first locking block (44) and the second locking block (45) are arranged alternately. A plug rod (46) is inserted into the inner wall of the first locking block (44) and the second locking block (45). The plug rod (46) is slidably installed on the outer wall of the second locking block (45).

3. The welding device for steel structure processing according to claim 2, characterized in that: A first magnetic plate (47) is fixedly installed on the outer wall of the middle part of the two ring frames (43). A second magnetic plate (48) is provided on one side of the first magnetic plate (47). The first magnetic plate (47) and the second magnetic plate (48) are arranged parallel to each other. The first magnetic plate (47) and the second magnetic plate (48) are arranged in a repulsive manner. A push cylinder (49) is fixedly installed on the outer wall of the second magnetic plate (48). The push cylinder (49) is arranged in a horizontal state. A sleeve (410) is slidably installed on the outer wall of the push cylinder (49). The sleeve (410) is fixedly installed on the outer wall of the ring frame (43).

4. The welding device for steel structure processing according to claim 3, characterized in that: A belt frame (411) is fixedly installed on the other side of the pusher (49). The belt frame (411) is set in a horizontal state. A rubber roller (412) is rotatably installed on one side of the belt frame (411). The outer wall of the rubber roller (412) is in contact with the outer wall of the steel (2).

5. The welding device for steel structure processing according to claim 4, characterized in that: The belt support mechanism (5) includes multiple insertion holes (51) on the outer wall of the rubber roller (412). The multiple insertion holes (51) are arranged in a ring at equal intervals. A fixed rod (52) is provided on one side of the multiple insertion holes (51). The fixed rod (52) is slidably installed on the outer wall of the belt frame (411). A first toothed plate (53) is fixedly installed on one side of the fixed rod (52). A gear (54) is meshed on the top of the first toothed plate (53). The gear (54) is rotatably installed on the inner wall of the belt frame (411). A second toothed plate (55) is meshed on the other side of the gear (54). The second toothed plate (55) and the first toothed plate (53) are arranged in an alternating manner. The second toothed plate (55) penetrates the top of the belt frame (411).

6. The welding device for steel structure processing according to claim 5, characterized in that: A lifting plate (56) is fixedly installed on the top of the second toothed plate (55). The lifting plate (56) is slidably installed on the bottom inner wall of the ring frame (43). The top of the lifting plate (56) is arc-shaped. The lifting plate (56) and the ring frame (43) are parallel to each other. The bottom of the lifting plate (56) extends out of the bottom of the ring frame (43). There are two lifting plates (56). The two lifting plates (56) are symmetrically arranged. The outer walls of the two lifting plates (56) are in contact with each other. One of the lifting plates (56) has an insert on the opposite side. The insert extends into the inner wall of the other lifting plate (56). A plurality of top support springs (57) are fixedly installed on the top of the lifting plate (56). The plurality of top support springs (57) are fixedly installed on the inner wall of the ring frame (43).

7. The welding device for steel structure processing according to claim 6, characterized in that: The outer wall of the lifting plate (56) is provided with a pull rod (58). The pull rod (58) is L-shaped and perpendicular to the bottom of the lifting plate (56). There are two pull rods (58), which are symmetrically arranged. A fixing plate (59) is slidably installed on one side of both pull rods (58). The fixing plate (59) is slidably installed and is vertically arranged. The fixing plate (59) is fixedly installed. At the bottom of the welding torch (3), the outer walls of the two pull rods (58) are rotatably mounted with a pull rod (510). The pull rod (510) is set in a horizontal state. The outer wall of the pull rod (510) is hinged with a pull bar (511). The pull bar (511) is set at an upward angle. The top of the pull bar (511) is hinged with a lever (512). The lever (512) is rotatably mounted on the outer wall of the fixing plate (59). The lever (512) is set in a horizontal state.

8. The welding device for steel structure processing according to claim 2, characterized in that: The locking mechanism (6) includes a rotating shaft (61) rotatably mounted on the top of the welding torch (3). The rotating shaft (61) is set in a vertical state. A threaded rod (62) is fixedly mounted on the bottom of the rotating shaft (61). The threaded rod (62) is threadedly connected to the inner wall of the welding torch (3). A squeezing block (63) is rotatably mounted on the bottom of the threaded rod (62). The bottom sides of the squeezing block (63) are set in an inclined state.

9. A welding device for steel structure processing according to claim 8, characterized in that: The extrusion block (63) has two clamping plates (64) on both sides. The two clamping plates (64) are slidably installed on the bottom of the welding gun (3). The two clamping plates (64) are symmetrically arranged. The outer walls of the two clamping plates (64) are in contact with the bottom outer wall of the extrusion block (63). The outer walls of the two clamping plates (64) are fixedly installed with a tension spring (65). The outer walls on both sides of the two clamping plates (64) are respectively fixedly installed with clamping posts (66). The clamping posts (66) are perpendicular to the clamping plates (64). The inner wall of the sliding groove on the top outer wall of the ring frame (43) is provided with multiple fixing holes (67). The multiple fixing holes (67) are arranged in a ring at equal intervals. The multiple fixing holes (67) are mutually coordinated with the clamping posts (66).

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