Bidirectional welding device and process for welding steel box girder for viaduct

Abstract

The invention relates to a bidirectional welding device and process for welding a steel box girder for a viaduct, and relates to the technical field of welding device.The device comprises a base, a welding frame is slidably connected to the base, the welding frame comprises two sliding columns, the base comprises two supporting tables, the two sliding columns slide on the two supporting tables respectively, and the two supporting tables are arranged on the two sliding columns. A connecting table is arranged between the two sliding columns and arranged at the ends, away from the supporting table, of the two sliding columns, and the lower end of the connecting table is slidably connected with a welding assembly used for welding the steel beam box. The assembled steel box girder is placed on one side of the base, then the welding frame is controlled to slide in the direction close to the steel box girder so that the welding assembly can be moved to the to-be-welded position of the steel box girder, and then the welding assembly can be controlled to weld the steel box girder.

Description

Technical Field

[0001] The present invention relates to the technical field of welding devices, and in particular to a two-way welding device and process for welding steel box girders for viaducts. Background Art

[0002] The steel box girder mainly includes a top plate, a bottom plate, webs, diaphragms, etc. Before the top plate is spliced, it needs to be welded to the rib plate, and then the steel box girder can be spliced. After the splicing of the steel box girder is completed, the joints of the spliced steel box girder need to be welded one by one to ensure the integrity and stability of the steel box girder.

[0003] A number of grooves adapted to the rib plates are equidistantly arranged on the diaphragm. After splicing, the top plate abuts against the diaphragm, and the rib plate abuts against the side wall of the groove.

[0004] When welding the top plate and the diaphragm, since the length of a single welding is short and the side wall of the rib plate is usually inclined, it is difficult to use a machine for welding, and usually manual welding is carried out. However, manual welding requires testing the skill level of the welder, and the labor intensity of manual work is relatively high. Summary of the Invention

[0005] In order to solve the above problems, the present application provides a two-way welding device and process for welding steel box girders for viaducts.

[0006] In a first aspect, the present application provides a two-way welding device for welding steel box girders for viaducts, adopting the following technical solutions: A two-way welding device for welding steel box girders for viaducts includes a base, on which a welding frame is slidably connected. The welding frame includes two sliding columns, the base includes two support platforms, the two sliding columns slide on the two support platforms respectively, a connecting platform is arranged between the two sliding columns, the connecting platform is arranged at one end of the two sliding columns away from the support platforms, and a welding assembly for welding the steel box girder is slidably connected to the lower end of the connecting platform.

[0007] By adopting the above technical solutions, the assembled steel box girder is placed on one side of the base, and then the welding frame is manipulated to slide towards the direction close to the steel box girder, so that the welding assembly is moved to the position to be welded on the steel box girder, and then the welding assembly can be manipulated to weld the steel box girder, with high convenience and low labor intensity of manual work.

[0008] Optionally, each of the two sliding columns includes an inner column and an outer column, the inner columns and the outer columns correspond one by one, the outer column is located outside the corresponding inner column, the inner column is slidably connected to the inside of the corresponding outer column, an adjusting cylinder is vertically arranged in each of the two outer columns, and the piston rods of the adjusting cylinders are fixedly connected to the corresponding inner columns.

[0009] By adopting the above technical solution, if the height of the steel box girder to be welded is relatively high, by operating the piston rod of the adjusting cylinder to extend, the inner column is driven to move away from the outer column, the sliding column is extended, and then the welding assembly is driven to move in the height direction, thereby improving the applicability of the welding assembly, enabling the welding of steel box girders with different heights, with high convenience and low labor intensity for workers.

[0010] Optionally, the welding assembly includes a welding box. A left inclined rod is slidably connected inside the welding box, and a welding torch is provided at the end of the left inclined rod. A lower horizontal rod is also slidably connected inside the welding box, and a welding torch is also provided at the end of the lower horizontal rod.

[0011] By adopting the above technical solution, the welding torch is abutted against the welding position of the steel box girder, and then by operating the left inclined rod and the lower horizontal rod to slide simultaneously, the steel box girder is welded, and the welding efficiency is relatively high.

[0012] Optionally, the welding assembly further includes an upper horizontal rod and a right inclined rod. Both the upper horizontal rod and the right inclined rod are slidably connected to the welding box, and welding torches are also provided at the ends of the upper horizontal rod and the right inclined rod. A plurality of welding torches all extend to the outside of the welding box.

[0013] By adopting the above technical solution, the welding torch is abutted against the welding position of the steel box girder, and then by operating the upper horizontal rod and the right inclined rod to slide simultaneously, the steel box girder is welded, and the welding efficiency is relatively high.

[0014] Optionally, a first gear is rotatably connected inside the welding box. A first rack is arranged on the side of the left inclined rod close to the first gear, and the first rack meshes with the first gear. A second gear is rotatably connected inside the welding box, and the first gear is coaxially and fixedly connected to the second gear. A second rack is arranged on the side of the lower horizontal rod close to the second gear, and the second rack meshes with the second gear.

[0015] By adopting the above technical solution, by operating the rotation of the first gear and the second gear, the left inclined rod and the lower horizontal rod are driven to move, with a simple structure and convenient driving.

[0016] Optionally, a third gear is rotatably connected inside the welding box. A third rack is arranged on the side of the upper horizontal rod close to the third gear, and the third rack meshes with the third gear. A fourth gear is also rotatably connected inside the welding box. A fourth rack is arranged on the side of the right inclined rod close to the fourth gear, and the fourth gear meshes with the fourth rack. The third gear and the fourth gear are coaxially and fixedly connected.

[0017] By adopting the above technical solution, by operating the rotation of the third gear and the fourth gear, the upper horizontal rod and the right inclined rod are driven to slide, with a simple structure and convenient driving.

[0018] Optionally, two synchronous pulleys are provided on one side of the welding box away from the welding torch. One of the synchronous pulleys is fixedly connected coaxially with Gear One, and the other synchronous pulley is fixedly connected coaxially with Gear Three. A synchronous belt is sleeved outside the two synchronous pulleys.

[0019] By adopting the above technical solution, by operating one of the synchronous pulleys to rotate, through the transmission of the synchronous belt, the other synchronous pulley is driven to rotate, and then Gear One, Gear Two, Gear Three and Gear Four are driven to rotate simultaneously, and then the left inclined rod, the lower horizontal rod, the upper horizontal rod and the right inclined rod are driven to slide simultaneously, and then a plurality of welding torches are driven to move simultaneously to weld the to-be-welded part of the steel box girder. The welding efficiency is relatively high, the convenience is relatively high, and the labor intensity of the workers is relatively low.

[0020] Optionally, a chute is opened at the lower end of the connecting platform. A first screw rod is rotatably connected to the side wall of the chute. The first screw rod is arranged along the length direction of the chute. The welding box is threadedly connected with the first screw rod.

[0021] By adopting the above technical solution, by operating the rotation of the first screw rod, the welding box is driven to slide along the length direction of the connecting platform, and then the positions of the welding box and the welding torch are adjusted to weld different positions of the steel box girder. The structure is simple and the driving is convenient.

[0022] Optionally, a concave cavity is opened at the upper end of one of the support platforms. One of the sliding columns extends into the concave cavity. A second threaded rod is rotatably connected to the side wall of the concave cavity. The second threaded rod is arranged along the length direction of the concave cavity. One of the sliding columns is threadedly connected with the second threaded rod.

[0023] By adopting the above technical solution, by operating the rotation of the second threaded rod, the welding frame can be driven to slide along the length direction of the support platform, and then the welding assembly can be driven to move towards or away from the steel box girder. The structure is simple and the driving is convenient.

[0024] In a second aspect, the present application provides a two-way welding process for welding a steel box girder for a viaduct, adopting the following technical solution: A two-way welding process for welding a steel box girder for a viaduct, comprising the following steps: S1: After the steel box girders are spliced, place them on one side of the welding device; S2: Slide the welding frame towards the steel box girder; S3: Operate one of the synchronous pulleys to rotate, drive the other synchronous pulley to rotate, drive Gear One, Gear Two, Gear Three and Gear Four to rotate, drive Rack One, Rack Two, Rack Three and Rack Four to slide, drive a plurality of welding torches to move, and weld the top plate, one of the rib plates and the side wall of the groove; S4: Operate the welding box to slide to the next to-be-welded position; S5: Repeat step S3 until the welding of the top plate and the diaphragm is completed.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The prominent innovation of the present application is that by rotating one of the synchronous pulleys, through the transmission of the synchronous belt, the other synchronous pulley is driven to rotate, and then the first gear, the second gear, the third gear, and the fourth gear are driven to rotate simultaneously, and then the left inclined rod, the lower horizontal rod, the upper horizontal rod, and the right inclined rod are driven to slide simultaneously, and then a plurality of welding torches are driven to move simultaneously to weld the parts to be welded of the steel box girder. The welding efficiency of the rib plate is relatively high, the convenience is relatively high, and the labor intensity of workers is relatively low. Description of the Drawings

[0026] Figure 1 is the overall structural schematic diagram of a two-way welding device for welding the steel box girder of a viaduct.

[0027] Figure 2 is the sectional schematic diagram highlighting the adjusting cylinder.

[0028] Figure 3 is Figure 2 the enlarged schematic diagram of part A in

[0029] Figure 4 is the schematic diagram highlighting the second threaded rod.

[0030] Figure 5 is Figure 1 the enlarged schematic diagram of part B in

[0031] Description of the Reference Numerals: 100, top plate; 200, rib plate; 300, diaphragm; 400, groove; 1, base; 11, support platform; 111, concave cavity; 112, second threaded rod; 12, second motor; 2, welding frame; 21, sliding column; 211, inner column; 212, outer column; 213, adjusting cylinder; 22, connecting platform; 221, chute; 222, first screw; 223, first motor; 3, welding assembly; 31, welding box; 311, first gear; 312, second gear; 313, third gear; 314, fourth gear; 315, synchronous pulley; 316, synchronous belt; 317, driving motor; 32, left inclined rod; 321, first rack; 33, lower horizontal rod; 331, second rack; 34, upper horizontal rod; 341, third rack; 35, right inclined rod; 351, fourth rack; 36, welding torch. Detailed Embodiment

[0032] The following further describes the present application in detail with reference to all the drawings.

[0033] The embodiment of the present application discloses a two-way welding device for welding the steel box girder of a viaduct.

[0034] Referring to Figure 1 and Figure 2 ,a two-way welding device for welding steel box girders of viaducts, comprising a base 1, on which a welding frame 2 is slidably connected. The welding frame 2 includes two sliding columns 21, and the base 1 includes two support platforms 11. The two sliding columns 21 slide on the two support platforms 11 respectively. A connecting platform 22 is arranged between the two sliding columns 21. The connecting platform 22 is arranged at one end of the two sliding columns 21 away from the support platforms 11. A welding assembly 3 for welding the steel box girder is slidably connected to the lower end of the connecting platform 22. Place the assembled steel box girder on one side of the base 1, then manipulate the welding frame 2 to slide towards the steel box girder, move the welding assembly 3 to the position where the steel box girder is to be welded, and then the welding assembly 3 can be manipulated to weld the steel box girder, with high convenience and low labor intensity of workers.

[0035] Referring to Figure 1 and Figure 2 ,both of the two sliding columns 21 include an inner column 211 and an outer column 212, which correspond to each other. The outer column 212 is located outside the corresponding inner column 211, and the inner column 211 is slidably connected to the inside of the corresponding outer column 212. An adjusting cylinder 213 is vertically arranged in each of the two outer columns 212, and the piston rods of the adjusting cylinders 213 are fixedly connected to the corresponding inner columns 211. If the height of the steel box girder to be welded is relatively high, by manipulating the piston rods of the two adjusting cylinders 213 to extend, the inner column 211 is driven to move away from the outer column 212. At this time, the sliding column 21 extends, and then the welding assembly 3 is driven to move in the height direction, thereby improving the applicability of the welding assembly 3, enabling the welding of steel box girders with different heights, with high convenience and low labor intensity of workers.

[0036] Referring to Figure 2 and Figure 3 ,the welding assembly 3 includes a welding box 31. The connecting platform 22 is located at the upper end of the two sliding columns 21. A chute 221 is opened at the lower end of the connecting platform 22. A first screw 222 is rotatably connected to the side wall of the chute 221. The first screw 222 is arranged along the length direction of the chute 221. The welding box 31 is threadedly connected to the first screw 222. A driving motor 317 is arranged at one end of the connecting platform 22 in the length direction. The output shaft of the driving motor 317 extends into the chute 221 and is fixedly connected to the first screw 222 coaxially. By manipulating the rotation of the motor 223, the first screw 222 is driven to rotate, and then the welding box 31 is driven to move, moving the welding box 31 to the position where the steel box girder is to be welded. The structure is simple and the driving is convenient.

[0037] Referring to Figure 4, a concave cavity 111 is provided at the upper end of one of the support platforms 11. One of the sliding columns 21 extends into the interior of the concave cavity 111. A second threaded rod 112 is rotatably connected to the side wall of the concave cavity 111. The second threaded rod 112 is arranged along the length direction of the concave cavity 111. One of the sliding columns 21 is threadedly connected to the second threaded rod 112. One end of the support platform 11 in the length direction is provided with a second motor 12. The output shaft of the second motor 12 extends into the interior of the concave cavity 111 and is coaxially and fixedly connected to the second threaded rod 112. By operating the rotation of the output shaft of the second motor 12, the second threaded rod 112 is driven to rotate, and then the welding frame 2 is driven to move in the direction close to the steel box girder. The structure is simple and the driving is convenient.

[0038] Refer to Figure 3 , a left inclined rod 32 is slidably connected in the welding box 31. A welding torch 36 is provided at the end of the left inclined rod 32. A lower horizontal rod 33 is also slidably connected in the welding box 31. A welding torch 36 is also provided at the end of the lower horizontal rod 33. The welding assembly 3 further includes an upper horizontal rod 34 and a right inclined rod 35. Both the upper horizontal rod 34 and the right inclined rod 35 are slidably connected to the welding box 31. Welding torches 36 are also provided at the ends of the upper horizontal rod 34 and the right inclined rod 35. A plurality of welding torches 36 all extend to the outside of the welding box 31.

[0039] Refer to Figure 3 , a first gear 311 is rotatably connected in the welding box 31. A first rack 321 is arranged on the side of the left inclined rod 32 close to the first gear 311. The first rack 321 meshes with the first gear 311. A second gear 312 is rotatably connected in the welding box 31. The first gear 311 is coaxially and fixedly connected to the second gear 312. A second rack 331 is arranged on the side of the lower horizontal rod 33 close to the second gear 312. The second rack 331 meshes with the second gear 312. A third gear 313 is rotatably connected in the welding box 31. A third rack 341 is arranged on the side of the upper horizontal rod 34 close to the third gear 313. The third rack 341 meshes with the third gear 313. A fourth gear 314 is also rotatably connected in the welding box 31. A fourth rack 351 is arranged on the side of the right inclined rod 35 close to the fourth gear 314. The fourth gear 314 meshes with the fourth rack 351. The third gear 313 and the fourth gear 314 are coaxially and fixedly connected.

[0040] Refer to Figure 3 and Figure 5, on one side of the welding box 31 away from the welding torch 36, there are two synchronous pulleys 315. One of the synchronous pulleys 315 is coaxially and fixedly connected to the first gear 311, and the other synchronous pulley 315 is coaxially and fixedly connected to the third gear 313. A synchronous belt 316 is sleeved outside the two synchronous pulleys 315. On one side of the welding box 31 away from the welding torch 36, there is a driving motor 317. The output shaft of the driving motor 317 is coaxially and fixedly connected to one of the synchronous pulleys 315. By operating the rotation of the output shaft of the driving motor 317, one of the synchronous pulleys 315 is driven to rotate. Through the transmission of the synchronous belt 316, the other synchronous pulley 315 is driven to rotate, and then the first gear 311, the second gear 312, the third gear 313, and the fourth gear 314 are driven to rotate simultaneously. Then the left inclined rod 32, the lower horizontal rod 33, the upper horizontal rod 34, and the right inclined rod 35 are driven to slide simultaneously. Then a number of welding torches 36 are driven to move simultaneously to weld the parts to be welded of the steel box girder. The welding efficiency is relatively high, the convenience is relatively high, and the labor intensity of workers is relatively low.

[0041] Refer to Figure 1 and Figure 3 , wherein, the left inclined rod 32 welds the rib plate 200 and the inclined side wall on the left side of the groove 400, the right inclined rod 35 welds the rib plate 200 and the inclined side wall on the right side of the groove 400, the lower horizontal rod 33 welds the bottom wall of the groove 400 and the rib plate 200, and the upper horizontal rod 34 welds the junction of the diaphragm plate 300 and the top plate 100. The welding efficiency is relatively high.

[0042] Refer to Figure 1 and Figure 4 , after the welding of the steel box girder is completed, operate the welding frame 2 to move away from the steel box girder. Then, by adjusting the position of the welding box 31, a number of welding torches 36 are adjusted to the next position to be welded, and then the steel box girder can be welded continuously. The welding efficiency is high and the manpower consumed is less.

[0043] The working principle of a two-way welding device for welding steel box girders of viaducts in an embodiment of the present application is as follows: By operating the output shaft of the first motor 223 to rotate, driving the first screw 222 to rotate, and then driving the welding box 31 to move to the position where the steel box girder needs to be welded; operating the output shaft of the second motor 12 to rotate to drive the second screw to rotate, and then driving the welding frame 2 to move towards the steel box girder; pressing a plurality of welding torches 36 against the position where the steel box girder needs to be welded, and then operating the driving motor 317 to rotate, driving the two synchronous pulleys 315 to rotate, and then driving the first gear 311, the second gear 312, the third gear 313, and the fourth gear 314 to rotate. When the first gear 311 rotates, it drives the first rack 321 to move. When the second gear 312 rotates, it drives the second rack 331 to move. When the third gear 313 rotates, it drives the third rack 341 to move. When the fourth gear 314 rotates, it drives the fourth rack 351 to move, thereby driving the four welding torches 36 to move and welding the steel box girder; the left inclined rod 32 welds the rib plate 200 and the inclined side wall on the left side of the groove 400, the right inclined rod 35 welds the rib plate 200 and the inclined side wall on the right side of the groove 400, the lower horizontal rod 33 welds the bottom wall of the groove 400 and the rib plate 200, and the upper horizontal rod 34 welds the junction of the diaphragm plate 300 and the top plate 100, with relatively high welding efficiency; after the welding of the steel box girder is completed, operate the welding frame 2 to move away from the steel box girder, and then adjust the position of the welding box 31 to adjust the plurality of welding torches 36 to the next position to be welded, and then continue to weld the steel box girder. The welding efficiency is high and the labor cost is relatively low.

[0044] An embodiment of the present application also discloses a two-way welding process for welding steel box girders of viaducts.

[0045] A two-way welding process for welding steel box girders of viaducts includes the following steps: S1: Place the spliced steel box girder on one side of the welding device. S2: Slide the welding frame 2 towards the steel box girder. S3: Operate one of the synchronous pulleys 315 to rotate, drive the other synchronous pulley 315 to rotate, drive the first gear 311, the second gear 312, the third gear 313, and the fourth gear 314 to rotate, drive the first rack 321, the second rack 331, the third rack 341, and the fourth rack 351 to slide, drive a plurality of welding torches 36 to move, and weld the top plate 100, one of the rib plates 200, and the side wall of the groove 400. S4: Operate the welding box 31 to slide to the next position to be welded. S5: Repeat step S3 until the welding of the top plate 100 and the diaphragm plate 300 is completed.

[0046] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A bidirectional welding device for welding steel box girders for viaducts, comprising a base (1), characterized in that: The base (1) is slidably connected to a welding frame (2), the welding frame (2) comprises two sliding columns (21), the base (1) comprises two support platforms (11), the two sliding columns (21) slide on the two support platforms (11) respectively, a connecting platform (22) is arranged between the two sliding columns (21), the connecting platform (22) is arranged at one end of the two sliding columns (21) away from the support platforms (11), and the lower end of the connecting platform (22) is slidably connected to a welding assembly (3) for welding a steel beam box.

2. A bidirectional welding device for welding steel box girders for viaducts according to claim 1, characterized in that: The two sliding columns (21) each include an inner column (211) and an outer column (212), the inner column (211) and the outer column (212) correspond one to one, the outer column (212) is located outside the corresponding inner column (211), the inner column (211) is slidably connected to the inside of the corresponding outer column (212), and an adjusting cylinder (213) is vertically arranged in the two outer columns (212), and the piston rod of the adjusting cylinder (213) is fixedly connected to the corresponding inner column (211).

3. A bidirectional welding device for welding steel box girders for viaducts according to claim 1, characterized in that: The welding assembly (3) comprises a welding box (31), a left oblique rod (32) is slidably connected inside the welding box (31), a welding gun (36) is arranged at the end of the left oblique rod (32), and a lower horizontal rod (33) is also slidably connected inside the welding box (31), and a welding gun (36) is also arranged at the end of the lower horizontal rod (33).

4. A bidirectional welding device for welding steel box girders for viaducts according to claim 3, characterized in that: The welding assembly (3) further comprises an upper horizontal rod (34) and a right oblique rod (35), both of which are slidably connected to the welding box (31), and welding guns (36) are also provided at the ends of the upper horizontal rod (34) and the right oblique rod (35), and a plurality of welding guns (36) extend to the outside of the welding box (31).

5. A bidirectional welding device for welding steel box girders for viaducts according to claim 4, characterized in that: The welding box (31) is rotatably connected with a gear 1 (311), a rack 1 (321) is arranged on a side of the left oblique rod (32) close to the gear 1 (311), and the rack 1 (321) and the gear 1 (311) are meshed with each other, a gear 2 (312) is rotatably connected with the welding box (31), the gear 1 (311) and the gear 2 (312) are coaxially fixedly connected, and a rack 2 (331) is arranged on a side of the lower horizontal rod (33) close to the gear 2 (312), and the rack 2 (331) and the gear 2 (312) are meshed with each other.

6. A bidirectional welding device for welding steel box girders for viaducts according to claim 5, characterized in that: A gear three (313) is rotatably connected in the welding box (31), a rack three (341) is arranged on the side of the upper horizontal rod (34) close to the gear three (313), and the rack three (341) and the gear three (313) are meshed with each other. A gear four (314) is also rotatably connected in the welding box (31), a rack four (351) is arranged on the side of the right oblique rod (35) close to the gear four (314), and the gear four (314) and the rack four (351) are meshed with each other, and the gear three (313) and the gear four (314) are coaxially fixedly connected.

7. A bidirectional welding device for welding steel box girders for viaducts according to claim 6, characterized in that: Two synchronous wheels (315) are arranged on a side of the welding box (31) away from the welding gun (36), wherein one synchronous wheel (315) is coaxially fixedly connected to gear one (311), and the other synchronous wheel (315) is coaxially fixedly connected to gear three (313), and the exteriors of the two synchronous wheels (315) are covered with synchronous belts (316).

8. The bidirectional welding device for welding steel box girders for viaducts according to claim 1, characterized in that: A slide groove (221) is provided at the lower end of the connecting platform (22), a screw rod (222) is rotatably connected to the side wall of the slide groove (221), the screw rod (222) is arranged along the length direction of the slide groove (221), and the welding box (31) is threadedly connected to the screw rod (222).

9. A bidirectional welding device for welding steel box girders for viaducts according to claim 3, characterized in that: A concave cavity (111) is formed at the upper end of one of the support platforms (11), one of the sliding columns (21) extends into the interior of the concave cavity (111), a second threaded rod (112) is rotatably connected to the side wall of the concave cavity (111), the second threaded rod (112) is arranged along the length direction of the concave cavity (111), and one of the sliding columns (21) is threadedly connected to the second threaded rod (112).

10. A bidirectional welding process for welding steel box girders for viaducts, characterized in that: The bidirectional welding device for welding steel box girders for viaducts according to claim 7 is used to weld the steel box girders, comprising the following steps: S1: After the steel beam box is assembled, place it on one side of the welding device; S2: Slide the welding frame (2) towards the direction close to the steel beam box; S3: operating one of the synchronous wheels (315) to rotate, driving the other synchronous wheel (315) to rotate, driving gear 1 (311), gear 2 (312), gear 3 (313) and gear 4 (314) to rotate, driving rack 1 (321), rack 2 (331), rack 3 (341) and rack 4 (351) to slide, driving a plurality of welding guns (36) to move, and welding the top plate (100), one of the rib plates (200) and the side wall of the groove (400); S4: operating the welding box (31) to slide to the next position to be welded; S5: Repeat step S3 until the welding of the top plate (100) and the diaphragm (300) is completed.

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