A welding auxiliary tool for a steel box girder

Abstract

This utility model relates to the field of tooling technology and discloses a welding auxiliary tooling for steel box girders. It includes a base plate, with two sets of positioning columns fixedly connected to the upper surface of the base plate. Adjusting blocks are detachably installed on the outer walls of the positioning columns. The lower surfaces of the adjusting blocks are rotatably connected to the upper surface of the base plate. A locking block is slidably connected to the inner wall of the positioning column. A spring is fixedly connected to the outer wall of the locking block. The lower outer wall of the locking block engages with the inner wall of the adjusting block and with the inner wall of the locking groove. A limiting plate is fixedly connected to the upper surface of the base plate. In this utility model, by installing the adjusting block onto the outer wall of the positioning column and adjusting its angle, the spring pushes the locking block to engage the adjusting block. The adjustable block and locking block allow for quick clamping and docking of steel box girder materials at different angles, assisting welding while improving welding strength and sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, and in particular to a welding auxiliary tooling for steel box girders. Background Technology

[0002] Steel box girders, also known as steel plate box girders, are a common structural form for long-span bridges. They have advantages such as light weight, high load-bearing capacity, good wind resistance and stability, and fast construction speed. They can fully utilize the tensile, compressive and shear strength of steel, while also having high torsional stiffness.

[0003] A steel box girder is not a single component, but is welded together from dozens to hundreds of parts, such as a top plate, bottom plate, web plate, diaphragms, and stiffening ribs. The relative positions of each part directly determine the stress performance of the bridge. Auxiliary tooling is used to "fix" each part in the design position to ensure that the geometric dimensions before and after welding meet the requirements of the drawings.

[0004] In related technologies, steel box girder materials are usually joined using tooling with a fixed angle. This can lead to deviations in the welding angle, resulting in defects such as incomplete penetration, lack of fusion, and undercut in the weld. This reduces the strength and sealing of the weld and affects the overall structural strength of the steel box girder. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a welding auxiliary fixture for steel box girders, aiming to solve the problem in related technologies where using fixtures with fixed angles to connect steel box girder materials can lead to deviations in the welding angle, while also reducing the strength and sealing of the weld.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A welding auxiliary fixture for steel box girders includes a base plate. Two sets of positioning columns are fixedly connected to the upper surface of the base plate. Adjusting blocks are detachably installed on the outer walls of the positioning columns. The lower surfaces of the adjusting blocks are rotatably connected to the upper surface of the base plate. A locking block is slidably connected to the inner wall of the positioning columns. A spring is fixedly connected to the outer wall of the locking block. The lower outer wall of the locking block engages with the inner wall of the adjusting block. The upper outer wall of the locking block is slidably connected to the upper surface of the adjusting block. Multiple sets of slots are formed on the inner wall of the adjusting block. The lower outer wall of the locking block engages with the inner wall of the slot. A limit plate is fixedly connected to the upper surface of the base plate.

[0007] The above technical solution involves installing the adjusting block onto the outer wall of the positioning column. When the spring pushes the locking block, it locks the adjusting block, achieving the effect of quickly fixing the adjusting block. The inner wall of the adjusting block has multiple sets of slots, so that when the adjusting block is at a suitable angle, the locking block will always lock the adjusting block, which can quickly control the angle of the adjusting block and facilitate the welding of the steel box girder material at different angles. Rotating the bolt will push the clamping block to slide, and the clamping block will fit with the adjusting block, achieving the effect of quickly fixing the steel box girder material.

[0008] Preferably, the inner wall of the limiting plate is provided with a threaded groove, the inner wall of the limiting plate is provided with a bolt, the outer wall of the bolt is threadedly connected to the inner wall of the threaded groove, one end of the outer wall of the bolt is rotatably connected to a clamping block, the lower surface of the clamping block is slidably connected to the upper surface of the base plate, and the outer wall of the clamping block is slidably connected to the outer wall of the adjusting block.

[0009] Preferably, the inner wall of the limiting plate has two sets of through holes, and a positioning block is slidably connected to the inner wall of the limiting plate, and the outer wall of the positioning block is slidably connected to the inner wall of the through hole.

[0010] Preferably, the outer wall of the positioning block near the limiting plate is fixedly connected to the outer wall of the clamping block. Multiple sets of rectangular grooves are opened on both the left and right sides of the positioning block. Multiple sets of springs are provided on the inner wall of the limiting plate. An inclined block is fixedly connected to the outer wall of one end of the spring. The outer wall of the inclined block near the spring is slidably connected to the inner wall of the limiting plate. The inclined outer wall of the inclined block away from the spring is slidably connected to the inner wall of the positioning block. The inclined outer wall of the inclined block is engaged with the inner wall of the rectangular groove.

[0011] Preferably, a fixing block is detachably installed on the outer wall of the positioning column, the upper surface of the fixing block is slidably connected to the upper surface of the base plate, two sets of mounting grooves are opened on the inner wall of the clamping block, a connecting block is detachably installed on the inner wall of the clamping block, the outer wall of the connecting block is detachably installed on the inner wall of the mounting groove, and the outer wall of the connecting block is slidably connected to the outer wall of the fixing block.

[0012] Preferably, the outer wall of the connecting block is fixedly connected to the mounting block, and the outer wall of the mounting block is slidably connected to the inner wall of the clamping block.

[0013] Preferably, the inner wall of the clamping block is provided with two sets of positioning holes, the outer wall of the mounting block is slidably connected to the inner wall of the positioning holes, and the outer wall of the mounting block is slidably connected to the inner wall of the limiting plate.

[0014] Preferably, the inner wall of the limiting plate is provided with a positioning groove, the outer wall of the mounting block is slidably connected to the inner wall of the positioning groove, and the outer wall of the clamping block near the limiting plate is slidably connected to a sliding rod, the outer wall of the sliding rod being engaged with the inner wall of the mounting block.

[0015] This utility model has the following beneficial effects: 1. In this utility model, by installing the adjusting block on the outer wall of the positioning column and adjusting the angle of the adjusting block, the spring pushes the locking block to lock the adjusting block, and the rotating bolt pushes the clamping block to slide, so that the clamping block drives the positioning block to slide synchronously. The set adjusting block and clamping block can quickly clamp and connect steel box girder materials at different angles, which can improve the welding strength and sealing effect while assisting welding.

[0016] 2. In this utility model, by installing fixing blocks of different shapes onto the outer wall of the positioning column, and then installing connecting blocks of different shapes onto the inner wall of the clamping block, the connecting blocks drive the mounting blocks to slide synchronously. At this time, the sliding rod is pushed to lock the mounting block. The connecting blocks can be quickly replaced with clamps of different shapes, so that the tooling can achieve the effect of clamping different types and shapes of steel box girder materials. Attached Figure Description

[0017] Figure 1 This is a perspective view of a welding auxiliary tooling for steel box girders proposed in this utility model; Figure 2 This is a partial structural diagram of an adjusting block for a welding auxiliary tooling for steel box girders proposed in this utility model. Figure 3 This is a partial structural diagram of a positioning block for a welding auxiliary tooling for steel box girders proposed in this utility model. Figure 4 This is a partial structural diagram of an inclined block for a welding auxiliary tooling for steel box girders proposed in this utility model. Figure 5 This is a partial structural diagram of a clamping block for a welding auxiliary tooling for steel box girders proposed in this utility model. Figure 6 This is a partial structural diagram of the mounting block for a welding auxiliary tooling for steel box girders proposed in this utility model.

[0018] Legend: 1. Base plate; 2. Positioning post; 3. Adjusting block; 4. Limiting plate; 5. Bolt; 6. Clamping block; 7. Positioning block; 8. Locking block; 9. Spring 1; 10. Spring 2; 11. Inclined block; 12. Fixing block; 13. Connecting block; 14. Mounting block; 15. Slide rod. Detailed Implementation

[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Example 1: Reference Figure 1 and Figure 2 This utility model provides an embodiment of a welding auxiliary fixture for steel box girders, comprising a base plate 1, two sets of positioning columns 2 fixedly connected to the upper surface of the base plate 1, an adjusting block 3 detachably installed on the outer wall of the positioning columns 2, the lower surface of the adjusting block 3 rotatably connected to the upper surface of the base plate 1, a locking block 8 slidably connected to the inner wall of the positioning columns 2, a spring 9 fixedly connected to the outer wall of the locking block 8, the lower outer wall of the locking block 8 engaging with the inner wall of the adjusting block 3, and the upper outer wall of the locking block 8 slidably connected to the adjusting block 3. The upper surface of the segment 3 and the inner wall of the adjusting block 3 are provided with multiple sets of slots. The lower outer wall of the locking block 8 is locked into the inner wall of the slot. The upper surface of the base plate 1 is fixedly connected to the limiting plate 4. The inner wall of the limiting plate 4 is provided with a threaded groove. The inner wall of the limiting plate 4 is provided with a bolt 5. The outer wall of the bolt 5 is threadedly connected to the inner wall of the threaded groove. One end of the outer wall of the bolt 5 is rotatably connected to the clamping block 6. The lower surface of the clamping block 6 is slidably connected to the upper surface of the base plate 1, and the outer wall of the clamping block 6 is slidably connected to the outer wall of the adjusting block 3. Specifically, by installing the adjusting block 3 onto the outer wall of the positioning column 2, the spring 9 pushes the locking block 8 to slide. The lower outer wall of the locking block 8 will lock the groove of the adjusting block 3, while the upper outer wall of the locking block 8 will abut against the upper surface of the adjusting block 3, achieving the effect of quickly fixing the adjusting block 3. By opening multiple sets of grooves on the inner wall of the adjusting block 3, after rotating the adjusting block 3 on the outer wall of the positioning column 2 to a suitable angle, the spring 9 will push the locking block 8 to keep the adjusting block 3 locked, which can quickly control the angle of the adjusting block 3, thereby assisting the material of the steel box girder to move at different angles. The welding effect is achieved by rotating bolt 5 within the threaded groove of the limiting plate 4, while bolt 5 rotates within the inner wall of clamping block 6, and clamping block 6 slides on the upper surface of the base plate 1. This allows for stable advancement of clamping block 6 when bolt 5 is rotated. By installing steel box girders of different materials onto the base plate 1 and fitting them against adjusting block 3, once the steel box girder material is installed in the appropriate position, rotating bolt 5 causes clamping block 6 to slide and cooperate with adjusting block 3 to hold the steel box girder material. This assists in the docking of steel box girder materials at different positions, achieving a convenient welding effect.

[0021] Example 2: Reference Figure 1 , Figure 3 and Figure 4The inner wall of the limiting plate 4 has two sets of through holes. The inner wall of the limiting plate 4 is slidably connected to the positioning block 7. The outer wall of the positioning block 7 is slidably connected to the inner wall of the through hole. The outer wall of the positioning block 7 near the limiting plate 4 is fixedly connected to the outer wall of the clamping block 6. Multiple sets of rectangular grooves are opened on both the left and right sides of the positioning block 7. Multiple sets of springs 10 are provided on the inner wall of the limiting plate 4. An inclined block 11 is fixedly connected to the outer wall of one end of the spring 10. The outer wall of the inclined block 11 near the spring 10 is slidably connected to the inner wall of the limiting plate 4. The inclined outer wall of the inclined block 11 away from the spring 10 is slidably connected to the inner wall of the positioning block 7. The inclined outer wall of the inclined block 11 is engaged with the inner wall of the rectangular groove. Specifically, when the clamping block 6 slides, it will cause the positioning block 7 to slide in the through hole of the limiting plate 4, which can prevent the clamping block 6 from shifting. When the positioning block 7 slides, the spring 10 installed on the inner wall of the limiting plate 4 will push the tilting block 11 to lock the rectangular groove of the positioning block 7, which can quickly fix the position of the positioning block 7. The tilting block 11 installed on the inner wall of the limiting plate 4 always locks the rectangular groove of the positioning block 7, and the joint between the tilting block 11 and the positioning block 7 is an inclined surface, so that the tilting block 11 can lock the positioning block 7 step by step, thus achieving the effect of quickly fixing the clamping block 6.

[0022] Example 3: Reference Figure 5 and Figure 6 The outer wall of the positioning column 2 is detachably equipped with a fixing block 12. The upper surface of the fixing block 12 is slidably connected to the upper surface of the base plate 1. The inner wall of the clamping block 6 is provided with two sets of mounting grooves. The inner wall of the clamping block 6 is detachably equipped with a connecting block 13. The outer wall of the connecting block 13 is detachably installed on the inner wall of the mounting groove. The outer wall of the connecting block 13 is slidably connected to the outer wall of the fixing block 12. The outer wall of the connecting block 13 is fixedly connected with an mounting block 14. The outer wall of the mounting block 14 is slidably connected to the inner wall of the clamping block 6. The inner wall of the clamping block 6 is provided with two sets of positioning holes. The outer wall of the mounting block 14 is slidably connected to the inner wall of the positioning holes. The outer wall of the mounting block 14 is slidably connected to the inner wall of the limiting plate 4. The inner wall of the limiting plate 4 is provided with a positioning groove. The outer wall of the mounting block 14 is slidably connected to the inner wall of the positioning groove. The outer wall of the clamping block 6 near the limiting plate 4 is slidably connected with a sliding rod 15. The outer wall of the sliding rod 15 is engaged with the inner wall of the mounting block 14. Specifically, after removing the adjusting block 3 from the outer wall of the positioning column 2, different shaped fixing blocks 12 are installed on the outer wall of the positioning column 2, and the fixing blocks 12 are quickly locked by the locking block 8. This allows for quick and easy replacement of different tooling, achieving the effect of conveniently fixing and welding different types of steel box girder materials. By opening two sets of installation slots on the inner wall of the clamping block 6, different shaped connecting blocks 13 are installed on the inner wall of the clamping block 6. The connecting blocks 13 slide on the outer wall of the fixing block 12 or the adjusting block 3, achieving the effect of quickly replacing different shaped tooling for fixing. By installing the connecting blocks 13 of different shapes into the installation slots, and cooperating with the fixing blocks 12 of different shapes or the adjusting blocks 3 of different angles, the effect of quickly fixing the steel box girder material can be achieved. When the connecting block 13 is installed into the installation slot of the clamping block 6, the connecting block 13 will drive the installation block 14 to slide on the inner wall of the clamping block 6 and the limiting plate 4, achieving the effect of quick positioning and installation. After the connecting block 13 is installed, the sliding rod 15 is pushed to lock the installation block 14, achieving the effect of quickly fixing the connecting block 13.

[0023] Working principle: When this fixture is needed, the limiting plate 4 is installed on the upper surface of the base plate 1, and the bolt 5 is passed through the limiting plate 4 and connected to the clamping block 6, achieving the effect of quick connection of the clamping block 6. By rotating the bolt 5, the clamping block 6 is pushed to slide, which simultaneously causes the positioning block 7 to slide on the inner wall of the limiting plate 4, allowing the clamping block 6 to be pushed and pulled stably while preventing displacement. When the positioning block 7 slides, the spring 10 installed on the inner wall of the limiting plate 4 will drive the tilting block 11 to lock the positioning block 7. As the positioning block 7 slides, the tilting block 11 will lock the positioning block 7 step by step, allowing the clamping block 6 to achieve a self-locking effect. By installing the adjusting block 3 or the fixing block 12 on the outer wall of the positioning column 2, the spring 9 pushes the locking block to lock the positioning block 6. Block 8 engages with adjusting block 3, enabling quick fixation of adjusting block 3 and fixing block 12. When adjusting block 3 is used, it rotates to the position on the outer wall of positioning column 2. The inner wall of adjusting block 3 has multiple sets of slots, allowing spring 9 to push locking block 8 to fix adjusting block 3 after adjusting block 3 is adjusted to a suitable angle, thus achieving quick adjustment of the angle of adjusting block 3. By installing connecting block 13 onto the inner wall of clamping block 6, mounting block 14 passes through clamping block 6. At this time, pushing slide rod 15 engages mounting block 14, enabling quick installation and removal of connecting block 13. Through the cooperation of connecting block 13 with fixing block 12 or adjusting block 3, different types of steel box girder materials can be quickly fixed, achieving convenient welding.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding auxiliary fixture for steel box girders, comprising a base plate (1), characterized in that: Two sets of positioning posts (2) are fixedly connected to the upper surface of the base plate (1). An adjusting block (3) is detachably installed on the outer wall of the positioning post (2). The lower surface of the adjusting block (3) is rotatably connected to the upper surface of the base plate (1). A locking block (8) is slidably connected to the inner wall of the positioning post (2). A spring (9) is fixedly connected to the outer wall of the locking block (8). The lower outer wall of the locking block (8) is engaged with the inner wall of the adjusting block (3). The upper outer wall of the locking block (8) is slidably connected to the upper surface of the adjusting block (3). Multiple sets of slots are opened on the inner wall of the adjusting block (3). The lower outer wall of the locking block (8) is engaged with the inner wall of the slot. A limit plate (4) is fixedly connected to the upper surface of the base plate (1).

2. The welding auxiliary fixture for steel box girders according to claim 1, characterized in that: The inner wall of the limiting plate (4) is provided with a threaded groove, and the inner wall of the limiting plate (4) is provided with a bolt (5). The outer wall of the bolt (5) is threadedly connected to the inner wall of the threaded groove. One end of the bolt (5) is rotatably connected to a clamping block (6). The lower surface of the clamping block (6) is slidably connected to the upper surface of the base plate (1), and the outer wall of the clamping block (6) is slidably connected to the outer wall of the adjusting block (3).

3. The welding auxiliary fixture for steel box girders according to claim 2, characterized in that: The inner wall of the limiting plate (4) has two sets of through holes, and the inner wall of the limiting plate (4) is slidably connected to a positioning block (7), and the outer wall of the positioning block (7) is slidably connected to the inner wall of the through hole.

4. The welding auxiliary fixture for steel box girders according to claim 3, characterized in that: The positioning block (7) is fixedly connected to the outer wall of the clamping block (6) on the side of the limiting plate (4). Multiple rectangular grooves are opened on both the left and right sides of the positioning block (7). Multiple springs (10) are provided on the inner wall of the limiting plate (4). An inclined block (11) is fixedly connected to the outer wall of one end of the spring (10). The inclined block (11) is slidably connected to the inner wall of the limiting plate (4) on the side of the inclined block (11) close to the spring (10). The inclined outer wall of the inclined block (11) away from the spring (10) is slidably connected to the inner wall of the positioning block (7). The inclined outer wall of the inclined block (11) is engaged with the inner wall of the rectangular groove.

5. The welding auxiliary fixture for steel box girders according to claim 2, characterized in that: The outer wall of the positioning column (2) is detachably fitted with a fixing block (12). The upper surface of the fixing block (12) is slidably connected to the upper surface of the base plate (1). The inner wall of the clamping block (6) is provided with two sets of mounting grooves. The inner wall of the clamping block (6) is detachably fitted with a connecting block (13). The outer wall of the connecting block (13) is detachably installed on the inner wall of the mounting groove. The outer wall of the connecting block (13) is slidably connected to the outer wall of the fixing block (12).

6. The welding auxiliary fixture for steel box girders according to claim 5, characterized in that: The outer wall of the connecting block (13) is fixedly connected to the mounting block (14), and the outer wall of the mounting block (14) is slidably connected to the inner wall of the clamping block (6).

7. The welding auxiliary tooling for steel box girders according to claim 6, characterized in that: The inner wall of the clamping block (6) is provided with two sets of positioning holes. The outer wall of the mounting block (14) is slidably connected to the inner wall of the positioning holes, and the outer wall of the mounting block (14) is slidably connected to the inner wall of the limiting plate (4).

8. The welding auxiliary fixture for steel box girders according to claim 7, characterized in that: The inner wall of the limiting plate (4) is provided with a positioning groove, and the outer wall of the mounting block (14) is slidably connected to the inner wall of the positioning groove. The outer wall of the clamping block (6) near the limiting plate (4) is slidably connected to a slide rod (15), and the outer wall of the slide rod (15) is engaged with the inner wall of the mounting block (14).

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