Welding tool for U-shaped rib of steel beam

Abstract

The utility model discloses a steel beam U-shaped rib welding tool, and relates to the field of welding tools, the steel beam U-shaped rib welding tool comprises a bearing seat, a U-shaped rib body is arranged above the bearing seat, the bearing seat and the U-shaped rib body are provided with two sets of lifting assemblies used for driving the U-shaped rib body to move up and down, and each lifting assembly comprises a lifting seat. The lifting base is composed of two symmetrical sub-bases, one side of each sub-base is rotationally connected with a rotating plate, and a plurality of pull rods are fixedly installed on one side of one sub-base. By arranging the branch seats, the pull rods and the knobs, when U-shaped rib bodies with different widths need to be welded, the knobs are loosened in advance, the two branch seats are pulled leftwards and rightwards respectively, and the pull rods slide in the sliding grooves, so that the distance between the branch seats is increased, relative displacement is not generated between the branch seats after the distance between the branch seats is adjusted and the knobs are tightened again, and the U-shaped rib bodies with different widths are welded. And the U-shaped rib bodies with different widths can be adapted by adjusting the distance between the sub-seats.

Description

Technical Field

[0001] The utility model relates to the technical field of welding tooling, in particular to a welding tooling for a steel beam U-shaped rib. Background Art

[0002] U-shaped ribs are key stiffening components in steel box girder bridges and are widely used in the deck structure of long-span bridges, such as cable-stayed and suspension bridges. As modern bridges evolve towards lightweight and long-span construction, traditional flat stiffeners are being replaced by U-shaped ribs due to their insufficient stiffness. U-shaped ribs are formed by cold bending or hot rolling and welded to the underside of the bridge deck in a "U" shape. They effectively increase local stiffness, distribute vehicle loads, and reduce residual welding stress. Their advantages include light weight, excellent fatigue resistance, and convenient construction.

[0003] After searching, the Chinese utility model patent for steel bridge U-shaped rib welding tooling with authorization announcement number CN220560812U includes a supporting base and a steel bridge U-shaped rib body. The front and rear ends of the bottom of the inner cavity of the supporting base are vertically fixed with hydraulic rods, and the front and rear ends of the bottom of the supporting base are fixedly installed with hydraulic cylinders connected to the lower ends of the corresponding hydraulic rods. By providing the hydraulic rods and hydraulic cylinders, the lifting seat on the top is controlled to rise and fall, thereby lifting the U-shaped rib body and fitting it with the bottom of the steel bridge deck. The inclination of the U-shaped rib body can be adjusted according to actual conditions. The operation can be completed by one person, saving a lot of manpower operation, which is conducive to the promotion of the utility model.

[0004] However, in the design of steel bridges, the width of the U-shaped ribs will be adjusted according to the structural force requirements, construction conditions and economy. In the mid-span part of the bridge, due to its large bending moment, wider U-shaped ribs will be used to enhance the bending stiffness; the U-shaped ribs will also be widened under lanes where trucks pass frequently; and thicker bridge decks will also be equipped with wider U-shaped ribs to disperse stress. It can be seen that the lifting seat of the above patent cannot meet the needs of adapting to U-shaped ribs of different widths. In view of this, the present application proposes a steel beam U-shaped rib welding tool based on the above technical problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a steel beam U-shaped rib welding tool.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A steel beam U-shaped rib welding tool comprises a supporting seat, a U-shaped rib body is arranged above the supporting seat, and two sets of lifting components for driving the U-shaped rib body to move up and down are provided on the supporting seat and the U-shaped rib body, and the lifting components include a lifting seat;

[0008] The lifting seat is composed of two symmetrical sub-seats, one side of which is rotatably connected to a rotating plate, one side of which is fixedly installed with several pull rods, and the other sub-seat is provided with a sliding groove matching the pull rod, and the pull rod is slidably installed inside the sliding groove, and a knob is rotatably installed on the lower surface of the other sub-seat, one end of the knob is passed through the sliding groove and movably abuts against the lower surface of the pull rod, a bottom plate is provided under the supporting seat, and an adaptive component is provided between the bottom plate and the supporting seat.

[0009] Furthermore, the lifting assembly also includes two hydraulic cylinders fixedly mounted on the supporting seat, and a push plate is fixedly mounted on the output end of the hydraulic cylinder, and the push plate is arranged on the lower surface of the supporting seat.

[0010] Furthermore, a rotating rod is fixedly installed near the bottom end of the rotating plate, and connecting blocks are provided on both sides of the sub-seat. One end of the rotating rod passes through the connecting block and is rotatably connected thereto. Threaded grooves are provided at both ends of the rotating rod, and one side of the connecting block is threadedly connected to a threaded rod matching the threaded groove. The threaded rod is fixedly connected to the rotating rod through the threaded groove, and a handwheel is fixedly installed on the other end of the threaded rod.

[0011] Furthermore, the adaptive component includes a first rotating seat fixedly mounted on the lower surface of the supporting seat, a second rotating seat fixedly mounted on the upper surface of the base plate, the first rotating seat and the second rotating seat are rotatably connected, two symmetrical first connecting seats are fixedly mounted on the lower surface of the supporting seat, two symmetrical second connecting seats are fixedly mounted on the upper surface of the base plate, a sleeve is rotatably mounted on the second connecting seat, a lifting rod is rotatably mounted on the first connecting seat, the lifting rod is slidably mounted inside the sleeve, and a thick spring is fixedly mounted between the lifting rod and the sleeve.

[0012] Furthermore, a guide rod is fixedly installed on one side of the rotating plate, an oblique guide groove is provided on the supporting seat, and the guide rod is slidably installed inside the guide groove.

[0013] Furthermore, the left and right sides of the pull rod are fixedly installed with limit blocks, a limit slot is provided inside the sub-seat, the limit block is slidably installed inside the limit slot, the limit slot is connected to the slide slot and its length is smaller than the slide slot.

[0014] Furthermore, the connecting body composed of the lifting seat and the rotating plate and the supporting seat are both U-shaped structures.

[0015] Furthermore, a protrusion is provided on the outside of the knob.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model is provided with sub-seats, pull rods and knobs. When it is necessary to weld U-shaped rib bodies of different widths, the knobs are loosened in advance, and the two sub-seats are pulled to the left and right respectively. The pull rods slide in the slide grooves, thereby increasing the distance between the sub-seats. After adjusting the spacing between the sub-seats, the knobs are tightened again. No relative displacement occurs between the sub-seats. The spacing between the sub-seats is adjusted to adapt to U-shaped rib bodies of different widths.

[0018] 2. The utility model is provided with a rotating plate, a threaded rod, and a handwheel. After the wider U-shaped rib body is installed, the original rotating plate will be difficult to fit on the inclined surface of the U-shaped rib body. At this time, it is only necessary to rotate the rotating plate until one side of the rotating plate fits with the inclined surface of the U-shaped rib body, and then rotate the handwheel. The handwheel drives the threaded rod to rotate. Since the threaded rod is threadedly connected to the connecting block, the threaded rod can move back and forth along the connecting block when it rotates. As the threaded rod moves, one end of the threaded rod is screwed into the thread groove of the rotating rod, and the angle of the rotating rod is fixed. The rotating plate thereby supports the U-shaped rib body.

[0019] 3. The utility model sets an adaptive component. When the hydraulic cylinder lifts the U-shaped rib body, the bottom surface of the steel bridge conducts the extrusion force in the reverse direction to the U-shaped rib body, the lifting seat and the supporting seat as a whole. Finally, the overall angle of the U-shaped rib body, the lifting seat and the supporting seat can be fine-tuned according to the inclination angle of the bottom surface of the steel bridge, ensuring that the U-shaped rib body fits tightly with the bottom surface of the steel bridge, thereby improving the welding quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a steel beam U-shaped rib welding tool proposed in the utility model;

[0021] Figure 2 This is a side view schematic diagram of a steel beam U-shaped rib welding tool proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the separation of the U-shaped rib welding fixture for a steel beam proposed in the present invention;

[0023] Figure 4 This is a schematic cross-sectional view of a sleeve for welding a U-shaped rib of a steel beam proposed in the present invention;

[0024] Figure 5 This is a schematic diagram of a rotating plate of a steel beam U-shaped rib welding fixture proposed in the present invention;

[0025] Figure 6 A schematic cross-sectional view of a U-shaped rib welding fixture for a steel beam proposed in the present invention;

[0026] Figure 7 This is a schematic diagram of a support seat for a steel beam U-shaped rib welding tooling proposed in the present invention.

[0027] In the figure: 1. Support seat; 2. U-shaped rib body; 3. Lifting seat; 4. Sub-seat; 5. Rotating plate; 6. Pull rod; 7. Slide groove; 8. Knob; 9. Bottom plate; 10. Hydraulic cylinder; 11. Push plate; 12. Rotating rod; 13. Connecting block; 14. Threaded rod; 15. Handwheel; 16. First rotating seat; 17. Second rotating seat; 18. First connecting seat; 19. Second connecting seat; 20. Sleeve; 21. Lifting rod; 22. Thick spring; 23. Guide rod; 24. Guide groove; 25. Limit block; 26. Limit groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Reference Figure 1-3 、 Figure 5 、 Figure 6 A steel beam U-shaped rib welding tool comprises a supporting seat 1, a U-shaped rib body 2 is arranged above the supporting seat 1, and two sets of lifting components for driving the U-shaped rib body 2 to move up and down are provided on the supporting seat 1 and the U-shaped rib body 2, and the lifting components include a lifting seat 3;

[0030] The lifting seat 3 is composed of two symmetrical sub-seats 4, one side of which is rotatably connected to a rotating plate 5, one side of which is fixedly mounted with a plurality of pull rods 6, wherein the interior of the other sub-seat 4 is provided with a slide groove 7 matching the pull rod 6, and the pull rod 6 is slidably mounted inside the slide groove 7, wherein a knob 8 is rotatably mounted on the lower surface of the other sub-seat 4, one end of the knob 8 is passed through the slide groove 7 and movably abuts against the lower surface of the pull rod 6, a bottom plate 9 is provided under the supporting seat 1, and an adaptive component is provided between the bottom plate 9 and the supporting seat 1;

[0031] When it is necessary to weld U-shaped rib bodies 2 of different widths, loosen the knob 8 in advance, pull the two sub-seats 4 to the left and right respectively, and the pull rod 6 slides in the slide groove 7 to increase the distance between the sub-seats 4. After adjusting the spacing between the sub-seats 4, tighten the knob 8 again. No relative displacement will occur between the sub-seats 4, and the spacing between the sub-seats 4 can be adjusted to adapt to U-shaped rib bodies 2 of different widths.

[0032] Reference Figure 2Specifically: the lifting assembly also includes two hydraulic cylinders 10 fixedly mounted on the supporting seat 1, and a push plate 11 is fixedly mounted on the output end of the hydraulic cylinder 10. The push plate 11 is arranged on the lower surface of the supporting seat 1. When the hydraulic cylinder 10 is started, the hydraulic cylinder 10 drives the push plate 11 to move upward. Under the push of the push plate 11, the sub-seat 4 makes the U-shaped rib body 2 fit into the corresponding position of the bottom of the steel bridge deck, which is convenient for welding.

[0033] Reference Figure 3 、 Figure 5 Specifically: a rotating rod 12 is fixedly installed near the bottom end of the rotating plate 5, and connecting blocks 13 are provided on both sides of the sub-base 4. One end of the rotating rod 12 passes through the interior of the connecting block 13 and is rotatably connected thereto. Threaded grooves are provided at both ends of the rotating rod 12, and a threaded rod 14 matching the threaded groove is threadedly connected to one side of the connecting block 13. The threaded rod 14 is fixedly connected to the rotating rod 12 through the threaded groove, and a handwheel 15 is fixedly installed on the other end of the threaded rod 14;

[0034] After the wider U-shaped rib body 2 is installed on the sub-seat 4, it will make it difficult for the original rotating plate 5 to fit on the inclined surface of the U-shaped rib body 2. At this time, it is only necessary to rotate the rotating plate 5 until one side of the rotating plate 5 fits into the inclined surface of the U-shaped rib body 2, and then rotate the handwheel 15. The handwheel 15 drives the threaded rod 14 to rotate. Since the threaded rod 14 is threadedly connected to the connecting block 13, the threaded rod 14 can move back and forth along the connecting block 13 when it rotates. As the threaded rod 14 moves, one end of the threaded rod 14 is screwed into the thread groove of the rotating rod 12, and the angle of the rotating rod 12 is fixed. The rotating plate 5 thereby supports the U-shaped rib body 2.

[0035] Reference Figure 4 Specifically: the adaptive component includes a first rotating seat 16 fixedly mounted on the lower surface of the supporting seat 1, a second rotating seat 17 fixedly mounted on the upper surface of the base plate 9, the first rotating seat 16 and the second rotating seat 17 are rotatably connected, two symmetrical first connecting seats 18 are fixedly mounted on the lower surface of the supporting seat 1, and two symmetrical second connecting seats 19 are fixedly mounted on the upper surface of the base plate 9, a sleeve 20 is rotatably mounted on the second connecting seat 19, a lifting rod 21 is rotatably mounted on the first connecting seat 18, the lifting rod 21 is slidably mounted inside the sleeve 20, and a thick spring 22 is fixedly mounted between the lifting rod 21 and the sleeve 20;

[0036] As for the bottom surface of the steel bridge with a certain inclination angle, when the hydraulic cylinder 10 lifts the U-shaped rib body 2, the bottom surface of the steel bridge reversely transmits the extrusion force to the U-shaped rib body 2, the lifting seat 3, and the supporting seat 1 as a whole, so that the overall angle of the U-shaped rib body 2, the lifting seat 3, and the supporting seat 1 can be fine-tuned according to the inclination angle of the bottom surface of the steel bridge, ensuring that the U-shaped rib body 2 fits tightly against the bottom surface of the steel bridge, improving the welding quality and efficiency. When the angle is fine-tuned, rotation occurs between the first rotating seat 16 and the second rotating seat 17, and the lifting rod 21 on one side rotates synchronously and moves upward in the sleeve 20, and the thick spring 22 connected thereto is extended. At the same time, the lifting rod 21 on the other side rotates synchronously and moves downward in the sleeve 20, and the thick spring 22 connected thereto is compressed.

[0037] Reference Figure 2 、 Figure 7 Specifically: a guide rod 23 is fixedly installed on one side of the rotating plate 5, and an oblique guide groove 24 is provided on the supporting seat 1. The guide rod 23 is slidably installed inside the guide groove 24. When the U-shaped rib body 2 moves up and down, the guide rod 23 slides in the guide groove 24 to ensure the stability of the U-shaped rib body 2 during the welding process.

[0038] Reference Figure 5-6 Specifically: the left and right sides of the pull rod 6 are fixedly installed with limit blocks 25, and a limit groove 26 is provided inside the sub-seat 4. The limit block 25 is slidably installed inside the limit groove 26. The limit groove 26 is connected with the slide groove 7 and its length is shorter than the slide groove 7. When the pull rod 6 moves, the limit block 25 can prevent the pull rod 6 from moving beyond the range of the slide groove 7, thereby ensuring the stability and safety of the welding tooling structure.

[0039] Reference Figure 2 Specifically, the connecting body composed of the lifting seat 3 and the rotating plate 5 and the supporting seat 1 are both U-shaped structures.

[0040] Reference Figure 3 Specifically: a protrusion is provided on the outside of the knob 8.

[0041] Working principle: When welding U-shaped rib bodies 2 of different widths, loosen the knob 8 in advance, pull the two sub-seats 4 to the left and right respectively, and the pull rod 6 slides in the slide groove 7, thereby increasing the distance between the sub-seats 4. After adjusting the spacing between the sub-seats 4, tighten the knob 8 again. No relative displacement occurs between the sub-seats 4. The spacing between the sub-seats 4 is adjusted to adapt to U-shaped rib bodies 2 of different widths. When the pull rod 6 moves, the limit block 25 can prevent the pull rod 6 from moving beyond the range of the slide groove 7, thereby ensuring the stability and safety of the welding tooling structure;

[0042] After the sub-seat 4 is installed with the wider U-shaped rib body 2, it will make it difficult for the original rotating plate 5 to fit on the inclined surface of the U-shaped rib body 2. At this time, it is only necessary to rotate the rotating plate 5 until one side of the rotating plate 5 fits on the inclined surface of the U-shaped rib body 2, and then rotate the handwheel 15. The handwheel 15 drives the threaded rod 14 to rotate. Since the threaded rod 14 is threadedly connected to the connecting block 13, the threaded rod 14 can move back and forth along the connecting block 13 when it rotates. As the threaded rod 14 moves, one end of the threaded rod 14 is screwed into the thread groove of the rotating rod 12, and the angle of the rotating rod 12 is fixed. The rotating plate 5 thus supports the U-shaped rib body 2;

[0043] The hydraulic cylinder 10 is activated, and the hydraulic cylinder 10 drives the push plate 11 to move upward. Under the push of the push plate 11, the sub-seat 4 makes the U-shaped rib body 2 fit into the corresponding position of the bottom of the steel bridge deck, which facilitates welding. When the U-shaped rib body 2 moves up and down, the guide rod 23 slides in the guide groove 24, ensuring the stability of the U-shaped rib body 2 during the welding process;

[0044] As for the bottom surface of the steel bridge with a certain inclination angle, when the hydraulic cylinder 10 lifts the U-shaped rib body 2, the bottom surface of the steel bridge reversely transmits the extrusion force to the U-shaped rib body 2, the lifting seat 3, and the supporting seat 1 as a whole, so that the overall angle of the U-shaped rib body 2, the lifting seat 3, and the supporting seat 1 can be fine-tuned according to the inclination angle of the bottom surface of the steel bridge, ensuring that the U-shaped rib body 2 fits tightly against the bottom surface of the steel bridge, improving the welding quality and efficiency. When the angle is fine-tuned, rotation occurs between the first rotating seat 16 and the second rotating seat 17, and the lifting rod 21 on one side rotates synchronously and moves upward in the sleeve 20, and the thick spring 22 connected thereto is extended. At the same time, the lifting rod 21 on the other side rotates synchronously and moves downward in the sleeve 20, and the thick spring 22 connected thereto is compressed.

[0045] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0046] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

Claims

1. A steel beam U-shaped rib welding tool, characterized in that: It comprises a supporting seat (1), a U-shaped rib body (2) is arranged above the supporting seat (1), and the supporting seat (1) and the U-shaped rib body (2) are provided with two sets of lifting components for driving the U-shaped rib body (2) to move up and down, and the lifting components include a lifting seat (3); The lifting seat (3) is composed of two symmetrical sub-seats (4), one side of the sub-seat (4) is rotatably connected to a rotating plate (5), one side of one sub-seat (4) is fixedly installed with a plurality of pull rods (6), the interior of the other sub-seat (4) is provided with a slide groove (7) matching the pull rod (6), the pull rod (6) is slidably installed inside the slide groove (7), the lower surface of the other sub-seat (4) is rotatably installed with a knob (8), one end of the knob (8) is passed through the slide groove (7) and movably abuts against the lower surface of the pull rod (6), a bottom plate (9) is provided below the support seat (1), and an adaptive component is provided between the bottom plate (9) and the support seat (1).

2. A steel beam U-shaped rib welding tool according to claim 1, characterized in that: The lifting assembly further comprises two hydraulic cylinders (10) fixedly mounted on the supporting seat (1), and a push plate (11) is fixedly mounted on the output end of the hydraulic cylinder (10), and the push plate (11) is arranged on the lower surface of the supporting seat (1).

3. The U-shaped rib welding tool for steel beams according to claim 1, characterized in that: A rotating rod (12) is fixedly installed near the bottom of the rotating plate (5), and connecting blocks (13) are provided on both sides of the sub-seat (4). One end of the rotating rod (12) passes through the interior of the connecting block (13) and is rotatably connected thereto. Threaded grooves are provided at both ends of the rotating rod (12), and a threaded rod (14) matching the threaded groove is threadedly connected to one side of the connecting block (13). The threaded rod (14) is fixedly connected to the rotating rod (12) through the threaded groove, and a hand wheel (15) is fixedly installed on the other end of the threaded rod (14).

4. The U-shaped rib welding tool for steel beams according to claim 1, characterized in that: The adaptive component includes a first rotating seat (16) fixedly mounted on the lower surface of the supporting seat (1), a second rotating seat (17) fixedly mounted on the upper surface of the base plate (9), the first rotating seat (16) and the second rotating seat (17) are rotatably connected, two symmetrical first connecting seats (18) are fixedly mounted on the lower surface of the supporting seat (1), two symmetrical second connecting seats (19) are fixedly mounted on the upper surface of the base plate (9), a sleeve (20) is rotatably mounted on the second connecting seat (19), a lifting rod (21) is rotatably mounted on the first connecting seat (18), the lifting rod (21) is slidably mounted inside the sleeve (20), and a thick spring (22) is fixedly mounted between the lifting rod (21) and the sleeve (20).

5. The steel beam U-shaped rib welding tool according to claim 1, characterized in that: A guide rod (23) is fixedly mounted on one side of the rotating plate (5), an oblique guide groove (24) is provided on the supporting seat (1), and the guide rod (23) is slidably mounted inside the guide groove (24).

6. The steel beam U-shaped rib welding tool according to claim 1, characterized in that: The left and right sides of the pull rod (6) are fixedly mounted with the limit blocks (25), a limit slot (26) is provided inside the sub-seat (4), the limit block (25) is slidably mounted inside the limit slot (26), and the limit slot (26) is connected to the slide slot (7) and is shorter than the slide slot (7).

7. The steel beam U-shaped rib welding tool according to claim 1, characterized in that: The connecting body formed by the lifting seat (3) and the rotating plate (5) and the supporting seat (1) are both U-shaped structures.

8. The steel beam U-shaped rib welding tool according to claim 1, characterized in that: The knob (8) is provided with a protrusion on the outside.

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