H-shaped steel welding positioning equipment

Abstract

The utility model discloses H-shaped steel welding positioning equipment, and relates to the technical field of steel machining. According to the technical scheme, supporting columns are fixedly connected to the corners of the upper surface of a bottom plate, a top frame is movably connected to the upper portions of the supporting columns, upper positioning wheels are installed on the lower surface of the top frame, angle rods are fixedly connected to the two sides of the top frame, and adjusting assemblies are installed on the upper portions of the side walls of the supporting columns; a center block is fixedly connected to the bottom of the inner side of the bottom plate, sliding plates are connected to the two sides of the center block through linear air cylinders, moving plates are fixedly connected to the top ends of the two sliding plates, side grooves are formed in the two sides of the top of the bottom plate, and the moving plates penetrate through the side grooves and extend to the position above the bottom plate. A two-way cooperative pressure applying control technology is adopted, a dynamic rolling contact interface is constructed on the premise that free axial displacement of H-shaped steel is maintained through orthogonal axial composite pressure loading, it is ensured that the friction coefficient is stable in the moving process, correction is conducted through the three-dimensional space position, and the continuity of the moving welding technology and the stability of machining precision are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of steel profile processing, specifically to an H-beam welding positioning device. Background Technology

[0002] H-beams, as a typical structural profile, have a standard H-shaped cross-section. They consist of parallel upper and lower flanges and vertically connected webs forming a three-dimensional load-bearing system. This cross-sectional shape achieves superior bending and compressive strength through reasonable material distribution. Its section modulus is significantly higher than that of a rectangular section of the same mass, making it a preferred material for load-bearing structures such as industrial plants, bridges, and high-rise buildings.

[0003] There are process control challenges in the continuous welding of long H-beams in industrial production: existing clamping systems require intermittent clamping-releasing cycles to achieve precise alignment. During the switching of clamping states, the H-beam workpiece is prone to instantaneous displacement deviation and mechanical vibration due to the influence of mechanism clearance and hydraulic system response lag. This problem seriously affects the stability of the continuous welding process and the fatigue life of components, and restricts the improvement of the operating efficiency of automated production lines. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an H-beam welding positioning device, which has the following advantages: by applying pressure in both vertical and horizontal directions, it can freely roll and contact the H-beam without hindering its movement, thus avoiding any jerking or positional shift of the H-beam, achieving continuous welding processing, and providing better continuous positioning functionality.

[0005] The above-mentioned objective of this utility model is achieved through the following technical solution:

[0006] An H-beam welding positioning device includes a base plate, with columns fixedly connected to the corners of the upper surface of the base plate, a top frame movably connected above the columns, upper positioning wheels installed on the lower surface of the top frame, corner rods fixedly connected to both sides of the top frame, and adjustment components installed on the upper part of the side walls of the columns.

[0007] A central block is fixedly connected to the bottom inner side of the base plate. Slide plates are connected to both sides of the central block via linear cylinders. Movable plates are fixedly connected to the top of the two slide plates. Side grooves are opened on both sides of the top of the base plate. The movable plates pass through the side grooves and extend to the top of the base plate.

[0008] A positioning rod is fixedly assembled inside the movable plate, and a side positioning wheel is installed on the inner side of the positioning rod. There are four sets of side positioning wheels, all at the same horizontal height.

[0009] In a preferred embodiment, the present invention can be further configured such that: the adjusting component includes a lifting cylinder, the lifting cylinder is connected to the side wall of the support column, the output end of the lifting cylinder is connected to a connecting plate, and the connecting plate is fixedly connected to the corner rod.

[0010] In a preferred embodiment, the present invention can be further configured such that: the upper positioning wheel rolls vertically against the top of the H-beam, and the side positioning wheel rolls horizontally against the side wall of the H-beam.

[0011] In a preferred embodiment, the present invention can be further configured such that: a rotating plate is rotatably connected to the upper part of the central block, and the two sides of the rotating plate are hinged to the moving plate via connecting arms.

[0012] In a preferred embodiment, the present invention can be further configured such that: the connecting arms are provided in two sets, and the two sets of connecting arms form a centrally symmetrical structure about the central block.

[0013] In a preferred embodiment, the present invention can be further configured such that: two sets of positioning rods are provided, and adjusting bolts are fixedly connected between the positioning rods and the moving plate, with the two sets of positioning rods symmetrically distributed about the vertical center line of the H-beam.

[0014] In a preferred embodiment, the present invention can be further configured such that: a slider is machined on the inner side of the bottom end of each corner bar, a reserved groove is opened on the outer wall of the support column, and the slider is embedded in the reserved groove and can move within the reserved groove.

[0015] In a preferred embodiment, the present invention can be further configured such that: a welding gun is fixedly connected to one end of the support column, and two sets of welding guns are provided, with the welding guns located in front of the side positioning wheel and pointing to the welding point of the H-beam respectively.

[0016] In a preferred embodiment, the present invention can be further configured such that multiple sets of parallel drive shafts are installed at the top center of the base plate.

[0017] In summary, this utility model has at least one of the following beneficial technical effects:

[0018] 1. This technical solution adopts bidirectional collaborative pressure control technology. By applying composite pressure in orthogonal axial directions (vertical and horizontal), a dynamic rolling contact interface is constructed while maintaining the free axial displacement of the H-beam. This ensures the stability of the friction coefficient during movement and utilizes three-dimensional spatial position for correction, thereby ensuring the continuity of the moving welding process and the stability of the processing accuracy.

[0019] 2. By constraining the displacement of H-beams in all directions, the jamming phenomenon during component movement is effectively eliminated and the center of gravity shift is controlled while ensuring the stable operation of the positioning structure. This enables the steel structure to bear load evenly, thereby ensuring the structural integrity and process reliability of the welded joints.

[0020] 3. Adjust the horizontal position of the positioning rod by adjusting the bolts, so that the side positioning wheel can be adjusted to fit more sizes and types of H-beams, thereby improving the applicability of the device. Attached Figure Description

[0021] Figure 1 This is a frontal cross-sectional view of the present invention.

[0022] Figure 2 This is a top view schematic diagram of the side positioning wheel structure of this utility model;

[0023] Figure 3 This is a top view of a partial structural diagram of the drive shaft of this utility model;

[0024] Figure 4 This is a front view schematic diagram of the slider structure of this utility model.

[0025] Reference numerals: 1. Top frame; 2. Upper positioning wheel; 3. Connecting plate; 4. Lifting cylinder; 5. Angle rod; 6. Welding torch; 7. Support column; 8. Positioning rod; 9. Moving plate; 10. Adjusting bolt; 11. Side positioning wheel; 12. Side groove; 13. Base plate; 14. Slide plate; 15. Connecting arm; 16. Linear cylinder; 17. Center block; 18. Rotating plate; 19. Drive shaft; 20. Slider. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-4 As shown, this is an H-beam welding positioning device disclosed in this technical solution, including a base plate 13, with support columns 7 fixedly connected to the corners of the upper surface of the base plate 13, a top frame 1 movably connected above the support columns 7, an upper positioning wheel 2 installed on the lower surface of the top frame 1, corner rods 5 fixedly connected to both sides of the top frame 1, and adjustment components installed on the upper part of the side wall of the support columns 7.

[0028] A central block 17 is fixedly connected to the bottom inner side of the base plate 13. Both sides of the central block 17 are connected to a sliding plate 14 via a linear cylinder 16. A movable plate 9 is fixedly connected to the top of each of the two sliding plates 14. Side grooves 12 are provided on both sides of the top of the base plate 13. The movable plate 9 passes through the side grooves 12 and extends to the top of the base plate 13.

[0029] The movable plate 9 is fixedly equipped with a positioning rod 8, and a side positioning wheel 11 is installed on the inner side of the positioning rod 8. There are four sets of side positioning wheels 11, and they are at the same horizontal height.

[0030] By applying composite pressure in orthogonal axial directions (vertical and horizontal), a dynamic rolling contact interface is constructed while maintaining the free axial displacement of the H-beam, ensuring the stability of the friction coefficient during movement. The three-dimensional spatial position is used for correction, ensuring the continuity of the moving welding process and the stability of the processing accuracy.

[0031] Furthermore, the adjustment assembly includes a lifting cylinder 4, which is connected to the side wall of the support column 7. The output end of the lifting cylinder 4 is connected to a connecting plate 3, which is fixedly connected to the angle rod 5. The inner side of the bottom end of the angle rod 5 is machined with a slider 20. A reserved groove is opened on the outer wall of the support column 7, and the slider 20 is embedded in the reserved groove and can move within the reserved groove.

[0032] By applying pressure in both vertical and horizontal directions, it ensures free rolling contact with the H-beam without hindering its movement, preventing the H-beam from shifting during welding and achieving a cycle of positioning, welding, moving, and positioning welding.

[0033] Furthermore, the upper positioning wheel 2 rolls vertically against the top of the H-beam, and the side positioning wheel 11 rolls horizontally against the side wall of the H-beam.

[0034] While not hindering the movement of the H-beam, it rolls freely in contact with the H-beam, avoiding any jerking or positional shift of the H-beam, thus enabling continuous welding processing and providing better continuous positioning capabilities.

[0035] Furthermore, a rotating plate 18 is rotatably connected to the upper part of the central block 17, and the two sides of the rotating plate 18 are hinged to the movable plate 9 via connecting arms 15. Two sets of connecting arms 15 are provided, and the two sets of connecting arms 15 form a centrally symmetrical structure about the central block 17.

[0036] When the side positioning wheels 11 move relative to each other, the rotating plate 18 rotates, and the two sets of connecting arms 15 pull the moving plate 9 and keep it parallel, so that the four sets of side positioning wheels 11 always maintain the same horizontal height during the movement, and stabilize the pressure point of the H-beam.

[0037] Furthermore, there are two sets of positioning rods 8, and adjusting bolts 10 are fixedly connected between the positioning rods 8 and the moving plate 9. The two sets of positioning rods 8 are symmetrically distributed about the vertical center line of the H-beam.

[0038] By adjusting the horizontal position of the positioning rod 8 by adjusting the bolt 10, the installation position of the side positioning wheel 11 can be adjusted to accommodate more sizes and types of H-beams, thereby improving the applicability of the device.

[0039] When the upper positioning wheel 2 descends, the slider at the corner rod 5 is embedded in the reserved groove on the inner wall of the support column 7 to rise and fall, ensuring the stability of the upper positioning wheel 2. By restricting movement at various points, smooth positioning is maintained while preventing movement from causing obstruction or tilting of the positioning center of gravity, ensuring that the H-beam is stably stressed.

[0040] Furthermore, a welding torch 6 is fixedly connected to one end of the support column 7. Two sets of welding torches 6 are provided, located in front of the side positioning wheel 11 and pointing to the welding point of the H-beam. Multiple sets of parallel drive shafts 19 are installed at the top center of the base plate 13 for moving and welding the H-beam.

[0041] The implementation principle of this embodiment is as follows: according to the size of the H-beam, adjust the position of the adjusting bolt 10 and the dry to achieve the effect of adjusting the installation position of the four sets of side positioning wheels 11;

[0042] The linear cylinder 16 moves, and the two sets of sliding plates 14 move relative to each other outside the center block 17, driving the moving plate 9 to move relative to each other in the side groove 12. The two sets of positioning rods 8 drive the side positioning wheels 11 to move relative to each other and abut against the H-beam. The two lifting cylinders 4 drive the corner rods 5 to descend, so that the upper positioning wheel 2 at the bottom of the top frame 1 descends to the top of the H-beam. By applying pressure in both vertical and horizontal directions, it is ensured that the H-beam is in free rolling contact with the H-beam without hindering its movement, thus preventing the H-beam from shifting during the welding process.

[0043] When the side positioning wheels 11 move relative to each other, the rotating plate 18 rotates, and the two sets of connecting arms 15 pull the moving plate 9 and keep it parallel, so that the four sets of side positioning wheels 11 always maintain the same horizontal height during the movement, and stabilize the pressure point of the H-beam.

[0044] When the upper positioning wheel 2 descends, the slider at the corner rod 5 is embedded in the reserved groove on the inner wall of the support column 7 to rise and fall, ensuring the stability of the upper positioning wheel 2. By restricting movement at various points, smooth positioning is maintained while preventing movement from causing obstruction or tilting of the positioning center of gravity, ensuring that the H-beam is stably stressed.

[0045] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A welding positioning device for H-beams, comprising a base plate (13), characterized in that, The corners of the upper surface of the base plate (13) are all fixedly connected to the support column (7), the top frame (1) is movably connected above the support column (7), the lower surface of the top frame (1) is equipped with the upper positioning wheel (2), the two sides of the top frame (1) are all fixedly connected to the corner rod (5), and the upper part of the side wall of the support column (7) is equipped with the adjustment component. A central block (17) is fixedly connected to the bottom inner side of the base plate (13). Both sides of the central block (17) are connected to sliding plates (14) via linear cylinders (16). The tops of the two sliding plates (14) are fixedly connected to movable plates (9). Side grooves (12) are opened on both sides of the top of the base plate (13). The movable plates (9) pass through the side grooves (12) and extend to the top of the base plate (13). The movable plate (9) is fixedly equipped with a positioning rod (8), and a side positioning wheel (11) is installed on the inner side of the positioning rod (8). There are four sets of side positioning wheels (11) at the same horizontal height.

2. The H-beam welding positioning device according to claim 1, characterized in that, The adjustment assembly includes a lifting cylinder (4), which is connected to the side wall of the support column (7). The output end of the lifting cylinder (4) is connected to a connecting plate (3), which is fixedly connected to the angle rod (5).

3. The H-beam welding positioning device according to claim 1, characterized in that, The upper positioning wheel (2) rolls vertically against the top of the H-beam, and the side positioning wheel (11) rolls horizontally against the side wall of the H-beam.

4. The H-beam welding positioning device according to claim 1, characterized in that, The upper part of the central block (17) is rotatably connected to a rotating plate (18), and the two sides of the rotating plate (18) are hinged to the moving plate (9) through connecting arms (15).

5. The H-beam welding positioning device according to claim 4, characterized in that, The connecting arm (15) is provided in two sets, and the two sets of connecting arms (15) form a centrally symmetrical structure about the central block (17).

6. The H-beam welding positioning device according to claim 1, characterized in that, The positioning rod (8) is provided in two sets. The positioning rod (8) and the moving plate (9) are fixedly connected by adjusting bolts (10). The two sets of positioning rods (8) are symmetrically distributed about the vertical center line of the H-beam.

7. The H-beam welding positioning device according to claim 1, characterized in that, The inner side of the bottom end of each of the angle rods (5) is machined with a slider (20), and the outer wall of the support column (7) is provided with a reserved groove. The slider (20) is embedded in the reserved groove and can move in the reserved groove.

8. The H-beam welding positioning device according to claim 1, characterized in that, One end of the support column (7) is fixedly connected to a welding gun (6). There are two sets of welding guns (6). The welding guns (6) are located in front of the side positioning wheel (11) and point to the welding point of the H-beam respectively.

9. The H-beam welding positioning device according to claim 1, characterized in that, Multiple sets of parallel drive shafts (19) are installed at the top center of the base plate (13).

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