Steel structure butt welding adjustment device and method

Abstract

The present invention belongs to the technical field of butt welding of steel structures, and specifically relates to a butt welding adjustment device and method for steel structures, comprising a workbench, wherein two support frames are fixedly connected to the upper surface of the workbench, a positioning frame is fixedly connected between the two support frames, two connecting plates are fixedly connected to one side of the positioning frame, and a limiting assembly is arranged on one side of each of the support frames, wherein the limiting assembly comprises a screw rod rotatably connected to the inside of the support frame; a connecting rod threadedly connected to the circumferential surface of the screw rod, and a limiting ring is fixedly connected to the end of the connecting rod away from the support frame. By arranging structures such as the limiting ring, the problem that the two steel pipes may be offset during welding due to the unstable fixation of the rectangular plate to the two steel pipes is solved, thereby causing the two steel pipes to be misaligned, resulting in the two steel pipes after welding not being on the same central axis, thereby producing welded steel pipes of unqualified quality.

Description

Technical Field

[0001] The invention belongs to the technical field of steel structure butt welding, in particular to a steel structure butt welding adjustment device and method. Background Art

[0002] Steel structure welding equipment includes manual arc welding, gas shielded welding, etc. When welding steel structure pipelines, although the manual arc welding operation method is easy to operate, the two steel structure welding seams cannot be welded evenly and accurately along the annular surface. The welds are corrugated and not beautiful. In addition, when the ends of the two steel structure pipes are limited, the adjacent ends are not on the same axis due to their own weight. Therefore, a docking correction device is required for correction before welding.

[0003] A patent with publication number CN113245761B discloses a steel structure butt welding adjustment device, including a frame. When adjusting the height of two steel structures, the threaded rod is threadedly connected to the frame, and the head end of the threaded rod is rotatably connected to the mounting plate, and the threaded rod and the sliding rod together constitute a vertical adjustment structure of the mounting plate. When placing the steel structure, the threaded rod is rotatably connected to the mounting seat, and the head end and tail end of the threaded rod are respectively threadedly connected to two placing arms; the thread directions of the head end and the tail end of the threaded rod are opposite, and the threaded rod constitutes a synchronous reverse adjustment structure of the two placing arms, thereby realizing rapid adjustment of the two placing arms.

[0004] There are still some problems in the actual application of the above scheme. In the process of butt-welding two steel pipes using the above steel structure butt welding adjustment device, the above rectangular mounting plate is used for extrusion and limiting. However, since the steel pipe is cylindrical, the rectangular mounting plate applies extrusion force to the steel pipe for limiting, so that the fixation of the two steel pipes is not stable, which may cause the two steel pipes to shift during the welding process, so that the two steel pipes are not aligned, resulting in the two steel pipes after welding not being on the same central axis, thereby producing unqualified welded steel pipes.

[0005] To this end, the present invention provides a steel structure butt welding adjustment device and method. Summary of the invention

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

[0007] The technical solution adopted by the present invention to solve its technical problem is: a steel structure butt welding adjustment device described in the present invention comprises a workbench, two support frames are fixedly connected to the upper surface of the workbench, a positioning frame is fixedly connected between the two support frames, two connecting plates are fixedly connected to one side of the positioning frame, and connecting columns are fixedly connected to the sides of the two connecting plates close to each other, and the two connecting columns are slidably connected to the same first gear ring, an annular groove is provided at the position of the first gear ring corresponding to the connecting column, a plurality of welding nozzles are fixedly connected to the inside of the first gear ring, and two connecting plates are also arranged directly below the workbench corresponding to the first gear ring, a first motor is fixedly connected to the upper surface of the workbench, a second gear is fixedly connected to the output end of the first motor, and the second gear is meshed with the first gear ring;

[0008] A plurality of fixing seats fixedly connected to the upper surface of the workbench;

[0009] A limit assembly is provided on one side of each support frame, and the limit assembly includes a screw rod rotatably connected to the inside of the support frame;

[0010] A motor is fixedly connected to the bottom of one of the screw rods, a first gear is fixedly connected to the top of each screw rod, and a first strip of steel is transmission-connected between the two first gears;

[0011] A connecting rod is threadedly connected to the circumferential surface of the screw rod, and the end of the connecting rod away from the supporting frame is fixedly connected to a limiting ring.

[0012] Preferably, two guide rails are fixedly connected to the upper surface of the workbench, a guide block is slidably connected to the surface of each guide rail, and a rotating plate is rotatably connected to the upper surface of the guide block.

[0013] Preferably, the cross-section of each of the fixing seats is arc-shaped, and a plurality of steel balls are rotatably provided on the arc-shaped inner wall of each of the fixing seats to assist in the docking of two steel pipes.

[0014] Preferably, a fixing frame is fixedly connected to the upper surface of the support frame, and both ends of the fixing frame are fixedly connected to fixing boxes;

[0015] A limiting groove is provided on the upper surface of the support frame, a rack plate is clamped in the limiting groove, and the bottom end of the rack plate is fixedly connected to the connecting rod;

[0016] The lower surfaces of the two fixed boxes are fixedly connected with sliding frames, and the two sliding frames are rotatably connected with the same rotating shaft, and the rotating gears arranged on the rotating shaft are rotatably engaged with the rack plate, and the circumferential surface of the rotating shaft is fixedly connected with a partition plate;

[0017] and a fixed frame slidably connected to the lower side of each sliding frame, and each fixed frame is fixedly connected to the limiting ring.

[0018] Preferably, positioning plates are fixedly connected to both sides of the sliding frame, and the fixed frame is provided with positioning grooves at positions corresponding to each positioning plate.

[0019] Preferably, a fixing hole is formed on the circumferential surface of each welding nozzle, and the fixing hole is used to spray out the shielding gas.

[0020] Preferably, a third gear is fixedly connected to the output end of the first motor, the third gear is meshed with a second gear ring, the second gear ring is limited by one of the positioning frames, and a plurality of grinding blocks are elastically provided inside the second gear ring.

[0021] Preferably, a plurality of telescopic columns are fixedly connected to the inner wall of the second gear ring, and a compression spring is sleeved on the circumferential surface of each telescopic column, one end of the compression spring is fixedly connected to the second gear ring, and a screw is threadedly connected to one end of the telescopic column away from the second gear ring, and a grinding block is fixedly connected to one end of the screw, and a plurality of collection frames are slidably arranged on the workbench corresponding to the first gear ring and the second gear ring directly below.

[0022] A steel structure butt welding adjustment method, characterized in that the specific steps include:

[0023] Step 1: Preparation before welding: First, clean the oil, paint, water and rust on the surface of the steel pipe, then cut the end faces of the two welded steel pipes into planes, and then butt them together so that the opposite sides of the two steel pipes are butted together;

[0024] Step 2: Start welding: Apply flux on the end face of the steel pipe and the tube plate, and then butt them together. The butt angles of the two steel pipes should be the same. When welding, protect the weld and welding area to prevent air changes during welding from affecting the weld quality. At the same time, the welding should be carried out smoothly and evenly to prevent cracks and pores.

[0025] Preferably: starting welding according to the description in step 2 is specifically as follows: first, the two steel pipes are placed on the fixed seats on both sides of the first gear ring respectively, and then the guide blocks on the guide rails are started to move. While the guide blocks are moving, the rotating plate above them is controlled by the control system to rotate, and the two steel pipes are rotated toward the direction of the first gear ring at the same time. When the two steel pipes are butt-jointed, the screw rod in one of the support frames is started to rotate, and the screw rod will drive the connecting rod on its circumferential surface, and then the connecting rod will drive the limit ring to move downward. During the downward movement of the limit ring, the rack plate fixed to the upper surface of the connecting rod will be driven, and then the rack plate will drive the rotating gear meshing with it, and then the rotating gear will drive the partition on the same rotating shaft with it to rotate, and the partition is just driven by the rotation to rotate one circle, and at the same time, the limit ring abuts against the steel pipe, and during the rotation of the partition, the anti-slip powder in the fixed box will fall, and then flow out from the spray hole on the inner wall of the limit ring, thereby increasing the friction between the limit ring and the steel pipe, so that the butt welding effect of the steel pipe is better.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. The steel structure butt welding adjustment device and method described in the present invention starts the screw in the support frame. After the screw rotates, it will drive the connecting rod on the circumferential surface of the screw, and then the connecting rod will drive the limit ring to move downward to fix the steel pipe. When the screw rotates, it will drive the first gear at the top to rotate. The rotation of the first gear will drive the first strip steel to transmit, and at this time it will drive the first gear on the other side of the support frame to rotate. By fixing a motor at the bottom of the screw of one of the support frames, the two limit rings are driven to fix the two steel pipes, thereby achieving a convenient and quick effect.

[0028] 2. The steel structure butt welding adjustment device and method described in the present invention allows the anti-skid powder in the fixed box to fall into the sliding frame and the fixed frame during the rotation of the partition, and then the anti-skid powder that falls into the fixed frame will fall into the limit ring and flow out from the spray hole on the inner wall of the limit ring. Then the anti-skid powder will adhere to the surface of the steel pipe, thereby increasing the friction between the limit ring and the steel pipe, making the limit ring more effective in fixing the steel pipe, achieving the effect of improving the welding quality and improving the stability of the butt welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the main body of the present invention;

[0032] Figure 3 It is a partial structural schematic diagram of the main body of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the support frame of the present invention;

[0034] Figure 5 is a front view of the support frame of the present invention;

[0035] Figure 6 It is a schematic diagram of the split structure of the sliding block of the present invention;

[0036] Figure 7 It is a schematic structural diagram of the limiting ring of the present invention;

[0037] Figure 8 is a schematic structural diagram of the first gear ring of the present invention;

[0038] Fig. 9 is a schematic structural diagram of the second gear ring of the present invention;

[0039] Fig.10 It is a schematic diagram of the structure of the grinding block of the present invention;

[0040] Fig.11 It is a structural schematic diagram of the fixing seat of the present invention;

[0041] In the figure: 1. Workbench;

[0042] 2. Guide rail; 21. Guide block; 22. Rotating plate;

[0043] 3. Steel pipe;

[0044] 4. Fixed seat; 41. Steel ball;

[0045] 5. Support frame; 51. Screw rod; 52. First gear; 53. First strip steel; 54. Fixed frame;

[0046] 55, rack plate; 551, limiting groove;

[0047] 56. Fixed box;

[0048] 57, limiting ring; 571, spray hole; 572, connecting rod;

[0049] 58, fixed frame; 59, sliding frame; 510, rotating gear; 511, positioning plate; 512, positioning groove; 513, rotating shaft; 514, partition;

[0050] 6. Collection box;

[0051] 7. First motor; 71. Positioning frame; 72. Connecting plate; 73. Connecting column; 74. Second gear; 75. Third gear; 76. First gear ring; 77. Annular groove; 78. Second gear ring; 79. Welding nozzle; 710. Fixing hole; 711. Grinding block; 712. Screw; 713. Telescopic column; 714. Compression spring. DETAILED DESCRIPTION

[0052] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0053] Embodiment 1

[0054] like Figures 1 to 11As shown, a steel structure butt welding adjustment device and method described in an embodiment of the present invention includes a workbench 1, two support frames 5 are fixedly connected to the upper surface of the workbench 1, a positioning frame 71 is fixedly connected between the two support frames 5, two connecting plates 72 are fixedly connected to one side of the positioning frame 71, and connecting columns 73 are fixedly connected to the sides of the two connecting plates 72 close to each other. The two connecting columns 73 are slidably connected to the same first toothed ring 76, and the first toothed ring 76 is provided with an annular groove 77 at the position corresponding to the connecting column 73. A plurality of welding nozzles 79 are fixedly connected to the interior of the first toothed ring 76. Two connecting plates 72 are also provided directly below the workbench 1 corresponding to the first toothed ring 76. A first motor 7 is fixedly connected to the upper surface of the table 1, and a second gear 74 is fixedly connected to the output end of the first motor 7, and the second gear 74 is meshed with the first gear ring 76; a plurality of fixed seats 4 are fixedly connected to the upper surface of the workbench 1; a limit assembly is arranged on one side of each support frame 5, and the limit assembly includes a screw rod 51 rotatably connected to the inside of the support frame 5; a motor is fixedly connected to the bottom of one of the screw rods 51, and a first gear 52 is fixedly connected to the top of each screw rod 51, and a first strip steel 53 is transmission-connected between the two first gears 52; a connecting rod 572 is threadedly connected to the circumferential surface of the screw rod 51, and a limit ring 57 is fixedly connected to the end of the connecting rod 572 away from the support frame 5.

[0055] Specifically, in the process of butting two steel pipes 3 using the existing steel structure butt welding adjustment device, the above-mentioned rectangular mounting plate is used for extrusion and limiting. However, since the steel pipe 3 is cylindrical, the rectangular mounting plate applies extrusion force to the steel pipe 3 for limiting, so that the fixation of the two steel pipes 3 is not stable, which may cause the two steel pipes 3 to deviate during the welding process, so that the two steel pipes 3 are not aligned, resulting in the two steel pipes 3 after welding not being on the same central axis, thereby producing a welded steel pipe 3 of unqualified quality;

[0056] Therefore, the present invention can better limit the steel pipe 3 by setting structures such as limit rings 57. First, when butt-welding the steel pipe 3, the two steel pipes 3 are respectively placed on the fixing seats 4 on both sides of the first gear ring 76, and then the ends of the two steel pipes 3 are aligned so that the ends of the two steel pipes 3 are aligned with the welding nozzles 79 in the first gear ring 76. Then, the screw rod 51 in the support frame 5 is started. After the screw rod 51 rotates, it will drive the connecting rod 572 on the circumferential surface of the screw rod 51, and then the connecting rod 572 will drive the limit ring 57 to move downward to fix the steel pipe 3. When the screw rod 51 rotates, it will drive the first gear 52 at the top to rotate. The rotation of the first gear 52 will drive the first strip steel 53 to transmit, and at this time, it will drive the first gear 52 on the other side of the support frame 5 to rotate. By rotating one of the supports A motor is fixedly connected to the bottom of the screw rod 51 of the frame 5, and then drives the two limit rings 57 to fix and limit the two steel pipes 3, achieving a convenient and fast effect. When the limit rings 57 fix and limit the two steel pipes 3, the first motor 7 is started again at this time, and the first motor 7 will drive the second gear 74 at its output end to rotate, and the rotation of the second gear 74 can drive the first gear ring 76 to rotate. The first gear ring 76 is limited by the connecting plate 72 and the connecting column 73, and the connecting column 73 can slide in the annular groove 77 of the first gear ring 76, so that the first gear ring 76 can rotate stably. After the first gear ring 76 rotates stably, the welding nozzle 79 is started to weld the butt joints of the two steel pipes 3. After the welding is completed, it is left to cool for a certain period of time, and then the steel pipes 3 are taken out to ensure that the butt joints can be more stable, thereby achieving the effect of rapid positioning welding of the two steel pipes 3.

[0057] The invention solves the problem that the two steel pipes 3 may be offset during welding due to the unstable fixation of the rectangular plate on the two steel pipes 3, so that the two steel pipes 3 are not aligned, resulting in the two steel pipes 3 after welding not being on the same central axis, thereby producing welded steel pipes 3 of unqualified quality.

[0058] like Figures 1 to 3 As shown, in this embodiment, two guide rails 2 are fixedly connected to the upper surface of the workbench 1, and a guide block 21 is slidably connected to the surface of each guide rail 2, and a rotating plate 22 is rotatably connected to the upper surface of the guide block 21.

[0059] Specifically, after placing the two steel pipes 3 on the fixed seat 4, the guide rail 2 is started to drive the guide block 21 on its track to slide. During the sliding of the guide block 21, the system controls the rotating plate 22 on the upper surface of the guide block 21 to rotate, and then the guide block 21 will drive the rotated rotating plate 22 to abut against the steel pipe 3, thereby pushing the steel pipe 3 into the first gear ring 76, and then the system is set to automatically position and align, thereby achieving a faster and more efficient alignment effect.

[0060] like Fig.11 As shown, in this embodiment, the cross section of each fixing seat 4 is arc-shaped, and a plurality of steel balls 41 are rotatably provided on the arc-shaped inner wall of each fixing seat 4 to assist the docking of two steel pipes 3 .

[0061] Specifically, a plurality of steel balls 41 are rotatably arranged on the inner arc surface of each fixed seat 4. When the rotating plate 22 pushes the steel pipe 3 for alignment, in order to make the steel pipe 3 slide more stably, the steel balls 41 are arranged so that the fixed seat 4 can support the steel pipe 3 and the steel balls 41 can also assist the sliding of the steel pipe 3, thereby improving the welding speed of the steel pipe 3.

[0062] like Figures 4 to 7 As shown, the upper surface of the support frame 5 of this embodiment is fixedly connected with a fixed frame 54, and both ends of the fixed frame 54 are fixedly connected with a fixed box 56; a limiting groove 551 is opened on the upper surface of the support frame 5, and a rack plate 55 is clamped in the limiting groove 551, and the bottom end of the rack plate 55 is fixedly connected to the connecting rod 572; the lower surfaces of the two fixed boxes 56 are fixedly connected with a sliding frame 59, and the two sliding frames 59 are rotatably connected to the same rotating shaft 513, and the rotating gear 510 rotatably set on the rotating shaft 513, and the rotating gear 510 is meshed with the rack plate 55, and a partition plate 514 is fixedly connected to the circumferential surface of the rotating shaft 513; and a fixed frame 58 is slidably connected to the bottom of each sliding frame 59, and each fixed frame 58 is fixedly connected to the limiting ring 57.

[0063] Specifically, when the connecting rod 572 drives the limiting ring 57 to move downward, it drives the rack plate 55 fixed to the upper surface of the connecting rod 572, and then the movement of the rack plate 55 drives the rotating gear 510 meshing with it to rotate. Since the rotating gear 510 is rotatably arranged between the two sliding frames 59, and the two sliding frames 59 are fixed to the upper surface of the support frame 5 through the fixing frame 54, when the rack plate 55 drives the rotating gear 510 to rotate, the partition plate 514 on the same rotating shaft 513 as the rotating gear 510 can rotate one circle. After the partition plate 514 rotates one circle, The limiting ring 57 just abuts against the steel pipe 3, and the rack plate 55 cannot continue to move downward, and cannot continue to drive the rotating gear 510 to rotate. However, the partition plate 514 causes the anti-slip powder in the fixed box 56 to fall into the sliding frame 59 and the fixed frame 58 during the rotation process, and then the anti-slip powder that falls into the fixed frame 58 will fall into the limiting ring 57 and flow out from the spray hole 571 on the inner wall of the limiting ring 57. Then the anti-slip powder will adhere to the surface of the steel pipe 3, thereby increasing the friction between the limiting ring 57 and the steel pipe 3, making the limiting ring 57 more effective in fixing the steel pipe 3, thereby achieving the effect of improving the welding quality and improving the stability of the butt welding.

[0064] like Figure 6As shown, in this embodiment, positioning plates 511 are fixedly connected to both sides of the sliding frame 59 , and positioning grooves 512 are formed in the fixed frame 58 corresponding to the positions of each positioning plate 511 .

[0065] Specifically, since the fixed frame 58 and the limiting ring 57 are fixedly connected, the fixed frame 58 will be driven to move downward when the limiting ring 57 moves downward. A positioning groove 512 is opened on the inner wall of the fixed frame 58, and a positioning plate 511 is fixedly connected to both sides of the sliding frame 59, so that the fixed frame 58 can slide along the positioning plate 511 during the downward sliding process, thereby achieving a more stable effect.

[0066] like Figure 4 As shown, in this embodiment, a fixing hole 710 is formed on the circumferential surface of each welding nozzle 79, and the fixing hole 710 is used to spray out the protective gas.

[0067] Specifically, when using the welding nozzle 79, a plurality of fixing holes 710 are opened on the circumferential surface of each welding nozzle 79, and protective gas can be sprayed out from these fixing holes 710 during the welding process, thereby improving the stability of welding, achieving better welding effects, and improving the quality of welding.

[0068] Embodiment 2

[0069] like Figures 2 to 11 As shown, compared with Example 1, another implementation of the present invention is: the output end of the first motor 7 is fixedly connected to the third gear 75, the third gear 75 is meshed with the second gear ring 78, the second gear ring 78 is limited by one of the positioning frames 71, and the second gear ring 78 is elastically provided with a plurality of grinding blocks 711 inside.

[0070] Specifically, after the welding of the two steel pipes 3 is completed and cooled for a certain period of time, the welded steel pipe 3 is driven to move to the second gear ring 78 by starting one section of the guide rail 2, so that the welded weld is aligned with the second gear ring 78, and then the first motor 7 is started again, and the first motor 7 will drive the third gear 75 to rotate. At this time, the first gear ring 76 will also be driven to rotate, but the welding nozzle 79 is not started, so the surface of the steel pipe 3 will not be damaged. Then, after the second gear ring 78 rotates, several grinding blocks 711 set on its inner wall will grind the welding part of the welded steel pipe 3, thereby solving the cumbersome step of separately grinding the welded steel pipe 3. Through the grinding of the grinding block 711, the welding point of the welding part is ground to make the weld more beautiful.

[0071] like Figures 2 to 11As shown, in this embodiment, a plurality of telescopic columns 713 are fixedly connected to the inner wall of the second gear ring 78, and a compression spring 714 is sleeved on the circumferential surface of each telescopic column 713, one end of the compression spring 714 is fixedly connected to the second gear ring 78, and one end of the telescopic column 713 away from the second gear ring 78 is threadedly connected to a screw rod 712, and one end of the screw rod 712 is fixedly connected to a grinding block 711, and a plurality of collection frames 6 are slidably arranged directly below the workbench 1 corresponding to the first gear ring 76 and the second gear ring 78.

[0072] Specifically, after the grinding block 711 has been used for a certain period of time, the grinding block 711 will become smaller due to wear. At this time, the grinding block 711 needs to be replaced. Therefore, the grinding block 711 is rotated to drive the screw 712 fixed on one side thereof, and then the screw 712 will be disengaged from the telescopic column 713, so that the grinding block 711 can be removed, thereby achieving a more convenient replacement effect. At the same time, a collection frame 6 is slidably provided on the lower surface of the first gear ring 76 and the second gear ring 78 to collect welding slag and metal debris produced by grinding, thereby keeping the workbench 1 clean.

[0073] A steel structure butt welding adjustment method, characterized in that the specific steps include:

[0074] Step 1: Preparation before welding: First, clean the oil, paint, water and rust on the surface of the steel pipe 3, then cut all the end faces of the two welded steel pipes 3 into planes, and then butt them together so that the opposite sides of the two steel pipes 3 are butt together;

[0075] Step 2: Start welding: Apply flux on the end face of the steel pipe 3 and the tube plate, and then butt them together. The butt angles of the two steel pipes 3 should be the same. During welding, protect the weld and welding area to prevent air changes during welding from affecting the weld quality. At the same time, the welding should be carried out smoothly and evenly to prevent cracks and pores.

[0076] The specific steps of starting welding as described in step 2 are as follows: first, the two steel pipes 3 are placed on the fixing seats 4 on both sides of the first gear ring 76 respectively, and then the guide block 21 on the guide rail 2 is started to move. While the guide block 21 is moving, the rotating plate 22 above it is controlled by the control system to rotate, and the two steel pipes 3 are rotated toward the direction of the first gear ring 76 at the same time. After the two steel pipes 3 are butt-jointed, the screw rod 51 in one of the support frames 5 is started to rotate, and the screw rod 51 will drive the connecting rod 572 on its circumferential surface, and then the connecting rod 572 will drive the limit ring 57 to move downward, and the limit ring 57 During the downward movement, the rack plate 55 fixed on the upper surface of the connecting rod 572 will be driven, and then the rack plate 55 will drive the rotating gear 510 meshing with it, and then the rotating gear 510 will drive the partition 514 on the same rotating shaft 513 to rotate. The partition 514 is driven by the rotation and rotates one circle. At the same time, the limit ring 57 abuts against the steel pipe 3. During the rotation of the partition 514, the anti-slip powder in the fixed box 56 will fall down and flow out from the spray hole 571 on the inner wall of the limit ring 57, thereby increasing the friction between the limit ring 57 and the steel pipe 3, so that the butt welding effect of the steel pipe 3 is better.

[0077] Working principle: First, when the steel pipe 3 is butt-welded, the two steel pipes 3 are placed on the fixing seats 4 on both sides of the first gear ring 76 respectively. After the two steel pipes 3 are placed on the fixing seats 4, the guide rail 2 is started to drive the guide block 21 on the track to slide. During the sliding process of the guide block 21, the rotating plate 22 on the upper surface of the guide block 21 is controlled by the system to rotate, and then the guide block 21 will drive the rotating plate 22 to abut against the steel pipe 3, so as to push the steel pipe 3 into the first gear ring 76, and then the system is set to automatically position and align, so as to achieve a faster and more efficient alignment effect;

[0078] After aligning the ends of the two steel pipes 3 to the welding nozzle 79 in the first gear ring 76, the screw rod 51 in the support frame 5 is started. After the screw rod 51 rotates, it will drive the connecting rod 572 on the circumferential surface of the screw rod 51, and then the connecting rod 572 will drive the limiting ring 57 to move downward to fix the steel pipe 3. When the screw rod 51 rotates, it will drive the first gear 52 at the top to rotate. The rotation of the first gear 52 will drive the first strip steel 53 to transmit, and at this time, it will drive the first gear 52 on the other side of the support frame 5 to rotate. By fixing a motor at the bottom of the screw rod 51 of one of the support frames 5, the two limiting rings 57 are driven to fix the two steel pipes 3, thereby achieving a square. The effect of convenience and speed is that after the limiting ring 57 has fixedly limited the two steel pipes 3, the first motor 7 is started again at this time, and the first motor 7 will drive the second gear 74 at its output end to rotate, and the rotation of the second gear 74 can drive the first gear ring 76 to rotate, and the first gear ring 76 is limited by the connecting plate 72 and the connecting column 73, and the connecting column 73 can slide in the annular groove 77 of the first gear ring 76, so that the first gear ring 76 can rotate stably. After the first gear ring 76 rotates stably, the welding nozzle 79 is started to weld the butt joints of the two steel pipes 3. After the welding is completed, it is left to cool for a certain period of time, and then the steel pipe 3 is taken out to ensure that the butt joint can be more stable, thereby achieving the effect of rapid positioning welding of the two steel pipes 3;

[0079] When the connecting rod 572 drives the limiting ring 57 to move downward, it drives the rack plate 55 fixed to the upper surface of the connecting rod 572, and then the movement of the rack plate 55 drives the rotating gear 510 meshing with it to rotate. Since the rotating gear 510 is rotatably arranged between the two sliding frames 59, and the two sliding frames 59 are fixed to the upper surface of the support frame 5 through the fixing frame 54, when the rack plate 55 drives the rotating gear 510 to rotate, it can be the partition plate 514 on the same rotating shaft 513 as the rotating gear 510, and the partition plate 514 will rotate one circle. After the partition plate 514 rotates one circle, the limiting ring 57 is rotated. The ring 57 just abuts against the steel pipe 3, and the rack plate 55 cannot continue to move downward, and cannot continue to drive the rotating gear 510 to rotate. However, during the rotation process, the partition plate 514 causes the anti-skid powder in the fixed box 56 to fall into the sliding frame 59 and the fixed frame 58, and then the anti-skid powder that falls into the fixed frame 58 will fall into the limiting ring 57 and flow out from the spray hole 571 on the inner wall of the limiting ring 57. Then the anti-skid powder will adhere to the surface of the steel pipe 3, thereby increasing the friction between the limiting ring 57 and the steel pipe 3, making the limiting ring 57 more effective in fixing the steel pipe 3, achieving the effect of improving the welding quality and improving the stability of the butt welding;

[0080] After the welding of the two steel pipes 3 is completed and cooled for a certain period of time, the welded steel pipe 3 is driven to move to the second gear ring 78 by starting one section of the guide rail 2, so that the welded weld is aligned with the second gear ring 78, and then the first motor 7 is started again, and the first motor 7 will drive the third gear 75 to rotate. At this time, the first gear ring 76 will also be driven to rotate, but the welding nozzle 79 is not started, so the surface of the steel pipe 3 will not be damaged. Then, after the second gear ring 78 rotates, several grinding blocks 711 set on its inner wall will grind the welding part of the welded steel pipe 3, which solves the cumbersome step of separately grinding the welded steel pipe 3. Through the grinding of the grinding block 711, the welding point of the welding part is ground, making the weld more beautiful.

[0081] After the grinding block 711 has been used for a certain period of time, the grinding block 711 will become smaller due to wear. At this time, the grinding block 711 needs to be replaced. Therefore, the grinding block 711 is rotated to drive the screw 712 fixed on one side thereof, and then the screw 712 will be disengaged from the telescopic column 713, so that the grinding block 711 can be removed and replaced more conveniently. At the same time, a collection frame 6 is slidably provided on the lower surface of the first gear ring 76 and the second gear ring 78 to collect welding slag and metal debris produced by grinding, thereby keeping the workbench 1 clean.

[0082] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A steel structure butt welding adjustment device, characterized in that: The invention comprises a workbench (1), wherein two support frames (5) are fixedly connected to the upper surface of the workbench (1), a positioning frame (71) is fixedly connected between the two support frames (5), two connecting plates (72) are fixedly connected to one side of the positioning frame (71), and connecting columns (73) are fixedly connected to the sides of the two connecting plates (72) close to each other, and the two connecting columns (73) are slidably connected to the same first gear ring (76), and an annular groove (77) is provided at the position of the first gear ring (76) corresponding to the connecting column (73), and a plurality of welding nozzles (79) are fixedly connected to the inside of the first gear ring (76), and two connecting plates (72) are also arranged directly below the workbench (1) corresponding to the first gear ring (76), and a first motor (7) is fixedly connected to the upper surface of the workbench (1), and a second gear (74) is fixedly connected to the output end of the first motor (7), and the second gear (74) is meshed with the first gear ring (76); A plurality of fixing seats (4) fixedly connected to the upper surface of the workbench (1); A limiting assembly is provided on one side of each support frame (5), wherein the limiting assembly comprises a screw rod (51) rotatably connected to the inside of the support frame (5); A motor is fixedly connected to the bottom of one of the screw rods (51), a first gear (52) is fixedly connected to the top of each screw rod (51), and a first steel strip (53) is transmission-connected between the two first gears (52); A connecting rod (572) threadedly connected to the circumferential surface of the screw rod (51), wherein the end of the connecting rod (572) away from the support frame (5) is fixedly connected to a limiting ring (57); A fixing frame (54) is fixedly connected to the upper surface of the support frame (5), and both ends of the fixing frame (54) are fixedly connected to fixing boxes (56); A limiting groove (551) is provided on the upper surface of the support frame (5), a rack plate (55) is clamped in the limiting groove (551), and the bottom end of the rack plate (55) is fixedly connected to the connecting rod (572); The lower surfaces of the two fixed boxes (56) are fixedly connected with sliding frames (59), and the two sliding frames (59) are rotatably connected with the same rotating shaft (513), and the rotating gear (510) arranged on the rotating shaft (513) is rotated, and the rotating gear (510) is meshed with the rack plate (55), and a partition plate (514) is fixedly connected to the circumferential surface of the rotating shaft (513); during the rotation of the partition plate (514), the anti-skid powder in the fixed box (56) will fall down, and then flow out from the spray hole (571) on the inner wall of the limiting ring (57); and a fixed frame (58) slidably connected to the bottom of each sliding frame (59), and each fixed frame (58) is fixedly connected to the limiting ring (57); Positioning plates (511) are fixedly connected to both sides of the sliding frame (59), and a positioning groove (512) is provided in the fixed frame (58) at a position corresponding to each positioning plate (511).

2. A steel structure butt welding adjustment device according to claim 1, characterized in that: Two guide rails (2) are fixedly connected to the upper surface of the workbench (1), and a guide block (21) is slidably connected to the surface of each guide rail (2), and a rotating plate (22) is rotatably connected to the upper surface of the guide block (21).

3. A steel structure butt welding adjustment device according to claim 1, characterized in that: The cross section of each fixing seat (4) is arc-shaped, and a plurality of steel balls (41) are rotatably arranged on the arc-shaped inner wall of each fixing seat (4) to assist in the docking of two steel pipes (3).

4. A steel structure butt welding adjustment device according to claim 1, characterized in that: A fixing hole (710) is provided on the circumferential surface of each welding nozzle (79), and the fixing hole (710) is used to spray out protective gas.

5. The steel structure butt welding adjustment device according to claim 1, characterized in that: The output end of the first motor (7) is fixedly connected with a third gear (75), the third gear (75) is meshed with a second gear ring (78), the second gear ring (78) is limited by one of the positioning frames (71), and a plurality of grinding blocks (711) are elastically arranged inside the second gear ring (78).

6. A steel structure butt welding adjustment device according to claim 5, characterized in that: A plurality of telescopic columns (713) are fixedly connected to the inner wall of the second gear ring (78), and a compression spring (714) is sleeved on the circumferential surface of each telescopic column (713). One end of the compression spring (714) is fixedly connected to the second gear ring (78). One end of the telescopic column (713) away from the second gear ring (78) is threadedly connected to a screw rod (712), and one end of the screw rod (712) is fixedly connected to a grinding block (711). A plurality of collection frames (6) are slidably arranged directly below the workbench (1) corresponding to the first gear ring (76) and the second gear ring (78).

7. A method for adjusting butt welding of steel structure, applied to a butt welding adjustment device of steel structure according to claim 2, characterized in that: The specific steps include: Step 1: Preparation before welding: First, clean the oil, paint, water and rust on the surface of the steel pipe (3), then cut the end faces of the two welded steel pipes (3) into flat surfaces, and then butt them together so that the opposite sides of the two steel pipes (3) are butt-jointed; Step 2: Start welding: Apply flux on the end face of the steel pipe (3) and the tube sheet, and then butt the two steel pipes (3). The butt angles of the two steel pipes (3) should be the same. During welding, the weld and the welding area should be protected to prevent air changes during the welding process from affecting the weld quality. At the same time, the welding should be carried out smoothly and evenly to prevent cracks and pores. The welding process in step 2 is specifically as follows: first, the two steel pipes (3) are placed on the fixed seats (4) on both sides of the first gear ring (76), and then the guide block (21) on the guide rail (2) is started to move. While the guide block (21) is moving, the rotating plate (22) above it is controlled by the control system to rotate, so that the two steel pipes (3) are moved toward the first gear ring (76) at the same time. After the two steel pipes (3) are butt-jointed, the screw rod (51) in one of the support frames (5) is started to rotate, and the screw rod (51) drives the connecting rod (572) on its circumferential surface, and then the connecting rod (572) drives the limit ring (57) to move downward. During the downward movement of the limit ring (57), the rack plate (55) fixed to the upper surface of the connecting rod (572) is driven, and then the rack plate (55) drives the rotating gear (510) meshing therewith, and then the rotating gear (510) drives the partition plate (514) on the same rotating shaft (513) to rotate, and the partition plate (514) is driven to rotate one circle, and at the same time, the limit ring (57) contacts the steel pipe (3). During the rotation of the partition plate (514), the anti-skid powder in the fixed box (56) falls down and flows out from the spray hole (571) on the inner wall of the limit ring (57), thereby increasing the friction between the limit ring (57) and the steel pipe (3).

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