H-shaped steel z-shaped welding structure based on deformation reduction

Abstract

The utility model discloses a kind of H-shaped steel Z-type welding structures based on deformation reduction, including first H-shaped steel, second H-shaped steel and two clamps, the two clamps are respectively detachably installed in the interface end of first H-shaped steel and second H-shaped steel, and the length direction of H-shaped steel is adjustably connected between the two clamps by multiple adjusting rods, the clamp includes two clamping parts, two clamping parts are symmetrically inserted in the left and right sides of H-shaped steel, and the width direction of H-shaped steel is adjustably connected between two clamping parts by connecting rod, the spacing of clamping part is adjusted by rotating connecting rod during installation, until two clamping parts are closely attached to H-shaped steel, the structure can assist various specifications H-shaped steel to be rigidly constrained when Z-type welding connection is carried out, prevent H-shaped steel from appearing deformation trend.

Description

Technical Field

[0001] This utility model relates to the field of H-beam steel component welding technology, and in particular to a Z-shaped welding structure for H-beam steel based on reduced deformation. Background Technology

[0002] H-beams are profiles with a cross-sectional shape resembling the letter "H". Due to their high bending resistance in all directions, simple construction, cost-effectiveness, and lightweight structure, they are widely used in buildings, bridges, equipment chassis, and other structures requiring high strength and stability. When a single H-beam is insufficient in length and needs to be extended, or when it needs to be connected to other important components, welding is required. Z-joint welding is typically used, as this method achieves equal strength connections, ensures smooth force flow, and avoids stress concentration. However, current Z-joint welding methods can still cause twisting and lateral bending. Therefore, clamping mechanisms are needed during welding to provide constraint on the H-beam and prevent these problems.

[0003] Chinese Patent Publication No. CN201889611U discloses an H-beam steel assembly jig, which includes an L-shaped main fixing clip. A threaded sleeve is welded to the middle of the short side of the main fixing clip, and a locking rod is installed inside the threaded sleeve. A movable fixing clip perpendicular to the main fixing clip is fitted onto the long side end of the main fixing clip. The movable fixing clip has threaded holes in its middle and lower parts, and a locking rod is installed inside each of the threaded holes. Two sliding clips are provided between the short side of the main fixing clip and the movable fixing clip, and are perpendicularly fitted onto the long side of the main fixing clip. The lower parts of the two sliding clips each have threaded holes, and a locking rod is installed inside each of the threaded holes. This utility model uses the main fixing card as a reference. The movable fixing card and sliding card, which can move on the main fixing card, are used to fix the flange plate on both sides of the H-beam. Then, the flange plate and web plate are pressed together with the locking top rod. After ensuring the overall size and vertical accuracy of the H-beam, multiple sets of this jig are selected to work simultaneously during the assembly and spot welding to strictly prevent the flange plate from tilting due to heat and ensure the quality of the H-beam.

[0004] However, it also has drawbacks: while this structure applies a certain restraint to the flanges of the H-beam, primarily preventing them from tilting due to heat, it lacks restraint on the web, potentially causing the H-beam to twist during welding. Furthermore, the Z-shaped welding process concentrates heat, leading to a large temperature difference between the welded area and other parts, preventing the formation of a stable temperature gradient and making it prone to deformation due to thermal stress. Therefore, it is necessary to design a method that can apply restraint to the H-beam from multiple directions during Z-shaped welding to prevent deformation, while simultaneously reducing the temperature gradient and avoiding the effects of thermal stress. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a Z-shaped welding structure for H-beams based on deformation reduction. This structure can provide rigid constraints to the H-beams from multiple directions when the H-beams are connected by Z-shaped welding, and can reduce the temperature gradient on the H-beams through the internal heat-conducting liquid, avoid thermal stress concentration, and prevent the H-beams from deforming from multiple aspects.

[0006] Therefore, this utility model is achieved by the following technical solution: a Z-shaped welded structure for H-beams based on reduced deformation, comprising a first H-beam, a second H-beam, and two clamps. The two clamps are detachably installed at the interface ends of the first H-beam and the second H-beam, respectively. The two clamps are adjustablely connected along the length of the H-beam via multiple adjusting rods. Each clamp includes two clamping parts, which are symmetrically inserted into the left and right sides of the H-beam. The two clamping parts are adjustablely connected along the width of the H-beam via a connecting rod. During installation, the connecting rod is rotated to adjust the spacing between the clamping parts until the two clamping parts are tightly attached to the H-beam.

[0007] Furthermore, each clamping part includes an upper clamping module, a lower clamping module, and a side clamping plate. The side clamping plate is installed between the upper clamping module and the lower clamping module, connecting the upper clamping module and the lower clamping module as a whole.

[0008] Furthermore, both the upper clamping module and the lower clamping module are composed of an upper clamping plate and a lower clamping plate, with the two clamping plates respectively disposed on both sides of the flange plate. A telescopic clamping assembly is provided between the upper clamping plate and the lower clamping plate. The telescopic clamping assembly includes a telescopic rod and a return spring. The two ends of the telescopic rod are respectively installed on the upper clamping plate and the lower clamping plate. The return spring is arranged around the telescopic rod. The flange plate of the H-beam is clamped between the two clamping plates, and the telescopic clamping assembly makes the flange plate in a clamped state.

[0009] Furthermore, both ends of the side clamping plate are adjustablely connected to their corresponding lower clamping plates via adjusting blocks. The lower clamping plate is provided with an adjusting screw, the end of which passes through the clamping plate and is fixedly connected to the adjusting block.

[0010] Furthermore, the side clamping plate is composed of two sleeved square plates, the outer ends of the two square plates are respectively connected to corresponding adjusting blocks, and the inner ends of the two square plates are movably sleeved together.

[0011] Furthermore, the upper clamping module, lower clamping module, adjusting block, and side clamping plate are all equipped with heat conduction channels. The upper clamping module and lower clamping module are connected to the heat conduction channels inside the adjusting block through multiple telescopic water-permeable pipes. The ends of the side clamping plate connected to the adjusting block are equipped with multiple water-permeable holes. The heat conduction channels of the side clamping plate are connected to the heat conduction channels inside the adjusting blocks at both ends through the water-permeable holes. The heat conduction liquid enters from the injection hole at the upper end of the upper clamping module, passes through the upper clamping module, the upper adjusting block, the side clamping plate, the lower adjusting block, and the lower clamping module in sequence, and is discharged from the drain hole at the bottom of the lower clamping module.

[0012] Furthermore, the weld joint between the first H-beam and the second H-beam is Z-shaped.

[0013] The beneficial effects of adopting the above technical solution are as follows:

[0014] 1. This Z-shaped welding structure for H-beams based on reduced deformation is equipped with a clamp. The clamp consists of multiple clamping parts, which can provide rigid constraint force to the welding part of the H-beam from all directions. During welding, it can prevent deformation in all directions. The connection structure between the clamping parts can assist in the butt joint positioning of two H-beams. Moreover, the modular design of the clamping parts allows the clamp to be applied to various types of H-beams. The structural connection method is simple, highly applicable, and can be quickly assembled and disassembled, making Z-shaped welding of H-beams more convenient and faster.

[0015] 2. The Z-shaped welding structure of H-beams based on deformation reduction can inject heat-conducting liquid into the fixture, so that when the H-beams are clamped, the heat at the weld joint of the H-beams can be conducted away, reducing the temperature gradient during the welding of the steel section, making the temperature distribution more uniform, and avoiding deformation caused by thermal stress concentration. Attached Figure Description

[0016] The present invention includes the following figures:

[0017] Figure 1 This is a schematic diagram of the side structure of an H-beam Z-shaped welded structure before welding, based on deformation reduction.

[0018] Figure 2 A schematic diagram of the side structure during welding of a Z-shaped welded structure for H-beams based on reduced deformation;

[0019] Figure 3 A front structural diagram of a Z-shaped welded structure for H-beams based on reduced deformation;

[0020] Figure 4 for Figure 3 A cross-sectional view of the clamping module.

[0021] Reference numerals: 1. Upper clamping module; 2. Lower clamping module; 3. First H-beam; 4. Second H-beam; 5. Upper flange plate; 6. Lower flange plate; 7. Telescopic rod; 8. Return spring; 9. Side clamping plate; 10. Web plate; 11. Adjusting rod; 12. Telescopic permeable pipe; 13. Slot; 14. Adjusting screw; 15. Injection hole; 16. Drain hole; 17. Connecting rod; 18. Adjusting block; 19. Lower clamping plate; 20. Upper clamping plate; 21. Permeable hole. Detailed Implementation

[0022] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0023] Reference Figure 1-4 As shown, a Z-shaped welded structure for H-beams based on reduced deformation includes a first H-beam 3, a second H-beam 4, and two clamps. The two clamps are detachably mounted on the interface ends of the first H-beam 3 and the second H-beam 4, respectively. The two clamps are adjustablely connected along the length of the H-beams via multiple adjusting rods 11. The adjusting rods 11 have threads in opposite directions at both ends. When the adjusting rods 11 are placed between the two clamps and rotated, the clamps tighten towards the center along the thread direction, thus controlling the distance between the two clamps. The Z-shaped interface welding method strengthens the structural connection of the H-beams. However, due to its asymmetry, it is prone to deformation. During welding, a clamping module provides rigid constraint to the welding position of the H-beams, thereby reducing deformation and improving the connection quality. The adjusting rods 11 connect and fix the clamps on the first H-beam 3 and the second H-beam 4, and also adjust the clamp spacing and assist in the welding positioning of the H-beams.

[0024] The clamp includes two clamping parts, which are symmetrically inserted into the left and right sides of the H-beam. The two clamping parts are adjustablely connected along the width direction of the H-beam via a connecting rod 17. The connecting rod 17 also has threads in opposite directions at both ends, and a nut for easy rotation is fixed in the middle of the connecting rod 17. During installation, turning the nut rotates the connecting rod 17, causing the clamping parts on both sides to tighten inward, thus adjusting the spacing between the clamping parts until the two clamping parts are flush against the H-beam. The modular design of the clamping components allows it to adapt to various sizes of H-beams and apply constraint forces to the H-beam from all directions.

[0025] Each clamping part includes an upper clamping module 1, a lower clamping module 2, and a side clamping plate 9. The side clamping plate 9 is installed between the upper clamping module 1 and the lower clamping module 2, connecting the upper clamping module 1 and the lower clamping module 2 into one unit. This structure allows the clamp to be fitted to the H-beam.

[0026] Both the upper clamping module 1 and the lower clamping module 2 consist of an upper clamping plate 19 and a lower clamping plate 20, respectively. The two clamping plates are respectively positioned on both sides of the flange plate. A telescopic clamping assembly is provided between the upper clamping plate 19 and the lower clamping plate 20. The telescopic clamping assembly includes a telescopic rod 7 and a return spring 8. The two ends of the telescopic rod 7 are respectively mounted on the upper clamping plate 1 and the lower clamping plate 2. The return spring 8 is arranged around the telescopic rod. The flange plate of the H-beam is clamped between the two clamping plates, and the telescopic clamping assembly keeps the flange plate in a clamped state. This return structure allows the clamping part to be installed on the flange plate of the H-beam, and is convenient to operate and easy to remove.

[0027] The two ends of the side clamping plate 9 are adjustablely connected to their corresponding lower clamping plates 19 via adjusting blocks 18. The lower clamping plate 19 is provided with an adjusting screw 14, the end of which passes through the clamping plate and is fixedly connected to the adjusting block 18. The side clamping plate 9 consists of two sleeved square plates, the outer ends of which are respectively connected to the corresponding adjusting blocks 18, and the inner ends of which are movably sleeved together. The adjusting blocks 18 are used to install and fix the side clamping plate 9. The position of the adjusting blocks 18 can be easily adjusted using the adjusting screws 14 and tightened with nuts, causing the side clamping plate 9 to press against the web 10 of the H-beam, thus better applying constraint force to the web 10.

[0028] The upper clamping module 1, lower clamping module 2, adjusting block 18, and side pressure plate 9 are all equipped with heat conduction channels. The upper clamping module 1 and lower clamping module 2 are connected to the heat conduction channels inside the adjusting block 18 through multiple telescopic permeable pipes 12. The end of the side pressure plate 9 connected to the adjusting block 18 is equipped with multiple permeable holes 21. The heat conduction channels of the side pressure plate 9 are connected to the heat conduction channels inside the adjusting blocks 18 at both ends through the permeable holes 21. The heat conduction liquid enters from the injection hole 15 at the upper end of the upper clamping module 1, passes through the upper clamping module 1, the upper adjusting block, the side pressure plate 9, the lower adjusting block, and the lower clamping module 2 in sequence, and is discharged from the drain hole 16 at the bottom of the lower clamping module 2. The clamping module is designed with a hollow structure and is equipped with injection holes 15 and drain holes 16 to allow the heat conduction liquid to fill the clamp. During use, the clamp can also remove heat near the weld, reduce the temperature gradient of the H-beam, and avoid cracking and deformation caused by thermal stress concentration.

[0029] After adopting the above technical solution, clamps are installed on H-beams that require Z-shaped welding connections. The clamping modules are fixed to the upper and lower flanges of the H-beams via the telescopic clamping assemblies of the upper and lower clamping modules. This telescopic reset installation method is convenient and can be installed on flanges of different thicknesses. Based on the flange width, the first and second clamping parts on both sides of the H-beams are connected by connecting rods 17 to form a single unit, applying constraint forces to the flanges in multiple directions to prevent deformation. Rotating the adjusting rod adjusts the position of the adjusting blocks 18 of the upper and lower clamping modules, allowing the side clamping plates 9 to fit tightly against the web 10 of the H-beams. This clamping module can quickly form a constraint network matching the workpiece, providing multi-directional rigid constraints to the H-beams and preventing deformation in any direction. Before welding the first H-beam 3 and the second H-beam 4, the clamping modules on the first H-beam 3 and the second H-beam 4 can be aligned and connected using the adjusting rod 11, and the spacing between the clamping modules can be adjusted. This helps to position the steel sections and avoids deviations in the welding position, which could affect the connection quality. The modular clamping structure design makes installation more convenient and faster, and also has better applicability, enabling rapid application in the welding of H-beams of different models and specifications.

[0030] The clamping module is hollow inside and has a heat-conducting channel for storing heat-conducting liquid. The components can be connected by multiple telescopic water-permeable pipes 12 and water-permeable holes 21. The upper and lower clamping modules are provided with injection holes 15 and drainage holes 16. Heat-conducting liquid can be injected into the module through the injection holes 15 to fill the inside of the clamp. During the welding of H-beams, it can assist in cooling and remove welding heat, reduce the thermoplastic deformation zone and temperature gradient of the workpiece, avoid the concentration of thermal stress and overheating deformation, and improve welding efficiency and quality.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A Z-shaped welded structure for H-beams based on reduced deformation, characterized in that: The device includes a first H-beam, a second H-beam, and two clamps. The two clamps are detachably installed at the interface ends of the first and second H-beams, respectively. The two clamps are adjustablely connected along the length of the H-beams via multiple adjusting rods. Each clamp includes two clamping parts, which are symmetrically inserted into the left and right sides of the H-beams. The two clamping parts are adjustablely connected along the width of the H-beams via a connecting rod. During installation, the connecting rod is rotated to adjust the spacing between the clamping parts until the two clamping parts are tightly attached to the H-beams.

2. The Z-shaped welded structure of H-beams based on reduced deformation according to claim 1, characterized in that: Each clamping unit includes an upper clamping module, a lower clamping module, and a side clamping plate. The side clamping plate is installed between the upper clamping module and the lower clamping module, connecting the upper clamping module and the lower clamping module as a whole.

3. The Z-shaped welded structure of H-beams based on reduced deformation according to claim 2, characterized in that: Both the upper clamping module and the lower clamping module are composed of an upper clamping plate and a lower clamping plate, respectively. The two clamping plates are respectively disposed on both sides of the flange plate. A telescopic clamping assembly is provided between the upper clamping plate and the lower clamping plate. The telescopic clamping assembly includes a telescopic rod and a return spring. The two ends of the telescopic rod are respectively installed on the upper clamping plate and the lower clamping plate. The return spring is arranged around the telescopic rod. The flange plate of the H-beam is clamped between the two clamping plates. The telescopic clamping assembly makes the flange plate in a clamped state.

4. The Z-shaped welded structure of H-beams based on reduced deformation according to claim 3, characterized in that: Both ends of the side clamping plate are adjustablely connected to their corresponding lower clamping plates via adjusting blocks. The lower clamping plate is provided with an adjusting screw, the end of which passes through the clamping plate and is fixedly connected to the adjusting block.

5. A Z-shaped welded structure for H-beams based on reduced deformation according to claim 1, 2, 3, or 4, characterized in that: The side clamping plate consists of two sleeved square plates, the outer ends of which are respectively connected to corresponding adjusting blocks, and the inner ends of the two square plates are movably sleeved together.

6. A Z-shaped welded structure for H-beams based on reduced deformation according to claim 5, characterized in that: The upper clamping module, lower clamping module, adjusting block, and side clamping plate are all equipped with heat conduction channels. The upper clamping module and lower clamping module are connected to the heat conduction channels inside the adjusting block through multiple telescopic water-permeable pipes. The end of the side clamping plate connected to the adjusting block is equipped with multiple water-permeable holes. The heat conduction channels of the side clamping plate are connected to the heat conduction channels inside the adjusting blocks at both ends through the water-permeable holes. The heat conduction liquid enters from the injection hole at the upper end of the upper clamping module, passes through the upper clamping module, the upper adjusting block, the side clamping plate, the lower adjusting block, and the lower clamping module in sequence, and is discharged from the drain hole at the bottom of the lower clamping module.

7. A Z-shaped welded structure for H-beams based on reduced deformation according to claim 6, characterized in that: The weld joint between the first H-beam and the second H-beam is Z-shaped.

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