Steel structure welding forming arrangement fixing clamp

Abstract

The utility model relates to steel structure welding technical field, concretely is a kind of steel structure welding forming arrangement fixing clamp, including support frame, the support frame top is equipped with the middle pressing portion and two side pressing portion of independent control, the side pressing portion is located middle pressing portion both sides respectively, the middle pressing portion is pressed in support frame from middle steel structure;The side pressing portion is pressed in support frame from both sides steel structure;By setting the middle pressing portion and two side pressing portion of independent control, when welding small size steel structure, can only enable middle pressing portion to fix;When welding large size steel structure, then middle pressing portion and the side pressing portion of both sides can be simultaneously enabled, and it is fixed together.This modular pressing mode makes a set of clamp can cover wider working size range, need not to change tooling, significantly improves the versatility and production preparation efficiency of equipment.

Description

Technical Field

[0001] This utility model relates to the field of steel structure welding technology, and in particular to a steel structure welding forming and fixing fixture. Background Technology

[0002] In the welding process of steel structural components (such as H-beams), it is often necessary to precisely position and fix components of different sizes, such as steel sections and plates, to ensure the accuracy and quality of the weld. Current technologies often use general-purpose fixtures or customized tooling to accomplish this task. However, general-purpose fixtures tend to have limited clamping range and pressure application methods, resulting in poor adaptability when dealing with steel structural components of significant dimensional differences. Operators need to frequently change or adjust the fixtures, reducing production efficiency.

[0003] While some fixed fixtures designed specifically for large workpieces can provide stable clamping, they can also present drawbacks when welding small steel structures, such as structural redundancy, inconvenient operation, large space occupation, and high cost. More importantly, whether it is a general-purpose fixture or a large-scale special-purpose fixture, if the pressure cannot be evenly distributed during clamping, the steel structure is prone to deformation or displacement due to local stress concentration during welding, directly affecting the final welding quality and the dimensional accuracy of the component. Utility Model Content

[0004] The main purpose of this utility model is to provide a steel structure welding and forming arrangement fixing fixture to solve the problems raised in related technologies.

[0005] To achieve the above objectives, according to one aspect of this utility model, a steel structure welding and forming arrangement fixing fixture is provided, including a support frame. The top of the support frame is provided with an independently controllable central pressing part and two side pressing parts. The side pressing parts are respectively located on both sides of the central pressing part. The central pressing part presses the steel structure onto the support frame from the middle; the side pressing parts press the steel structure onto the support frame from both sides. When welding a small-sized steel structure, the central pressing part is pressed down to fix the steel structure onto the support frame; when welding a large-sized steel structure, the central pressing part and the side pressing parts are pressed down to fix the steel structure onto the support frame.

[0006] Furthermore, the support frame includes a base plate and a top plate, and both sides of the base plate and the top plate are fixedly connected by support plates.

[0007] Furthermore, a pad is fixedly provided on the upper surface of the base plate, and a plurality of lower protrusions are fixedly provided on the upper surface of the pad, the lower protrusions being of the same size.

[0008] Furthermore, the middle pressing part includes a middle pressing plate and a driving part, and the side pressing part includes a side pressing plate and a driving part, wherein the driving part drives the middle pressing plate and the side pressing plate to move up and down respectively.

[0009] Furthermore, the drive unit includes a hydraulic cylinder and several guide rods, the guide rods slide through the top plate, the hydraulic cylinder is fixedly mounted on the top of the top plate, and the piston rod of the hydraulic cylinder extends downward out of the top plate and is slidably connected to the top plate.

[0010] Furthermore, the bottom surfaces of both ends of the middle pressing plate are fixedly provided with support platforms, and the bottom surfaces of the support platforms are flush with the bottom surfaces of the middle pressing plate; the top surfaces of both ends of the side pressing plate are fixedly provided with pressing platforms, and when the pressing platforms press on the corresponding support platforms, the bottom surfaces of the middle pressing plate and the bottom surfaces of the side pressing plates are flush.

[0011] Furthermore, the lower surfaces of both the middle pressing plate and the side pressing plate are fixedly provided with several upper protruding strips, and the upper protruding strips are of the same size.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up an independently controllable central pressing part and two side pressing parts, when welding small-sized steel structures, only the central pressing part can be used for fixation; when welding large-sized steel structures, both the central pressing part and the two side pressing parts can be used simultaneously for fixation. This modular pressing method allows one set of fixtures to cover a wider range of working sizes without the need to change tooling, significantly improving the versatility of the equipment and the efficiency of production preparation.

[0013] 2. The mating structure of the support platform and pressure table between the central and side pressure plates ensures that the bottom surfaces of the central and side pressure plates remain flush in large-size applications, thus applying uniform downward pressure to the entire pressure surface of the workpiece. Simultaneously, the upper and lower protrusions on the lower surface of the pressure plate and the upper surface of the support frame further distribute the pressure evenly. This design avoids deformation and displacement of the steel structure due to excessive localized pressure, ensuring high-quality welding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the synchronous movement of the pressing part of this utility model; Figure 2 This is a schematic diagram of the pressed-down state of the middle pressing part of this utility model. Figure label: 1. Base plate; 2. Top plate; 3. Support plate; 4. Cushion layer; 5. Lower protruding strip; 6. Middle pressing plate; 7. Side pressing plate; 8. Guide rod; 9. Piston rod; 10. Hydraulic cylinder; 11. Upper protruding strip; 12. Support platform; 13. Pressing platform. Detailed Implementation

[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0016] This embodiment provides a steel structure welding and forming arrangement fixing fixture, mainly used for the stable and reliable fixing of H-beams of different sizes during the welding process. For example... Figure 1 As shown, the clamp includes a support frame and a pressing actuator disposed on top of the support frame.

[0017] The support structure forms the main frame of the fixture, consisting of a base plate 1, a top plate 2, and support plates 3 connecting the two. There are two support plates 3, which are vertically fixed to the left and right sides of the base plate 1 and the top plate 2 respectively, firmly connecting the two into a whole and providing sufficient structural strength and stability.

[0018] A padding layer 4 is fixedly laid on the upper surface of the base plate 1. This padding layer 4 is preferably made of a soft and high-temperature resistant material, such as asbestos, high-temperature silicone, or special engineering plastics. Its function is twofold: firstly, to cushion the surface and prevent the hard base plate 1 from directly contacting and damaging the lower surface of the H-beam; and secondly, to increase friction and prevent the H-beam from sliding after fixing. To further enhance the fixing effect and ensure uniform pressure distribution, several downward-protruding strips 5 of the same size are also fixedly installed on the upper surface of the padding layer 4. These downward-protruding strips 5 are also made of a soft, high-temperature resistant material, and when they come into contact with the H-beam, they provide multiple evenly distributed support points.

[0019] The pressing mechanism is divided into three independently controlled parts: a central pressing part located in the middle, and two side pressing parts located on its left and right sides respectively.

[0020] The central pressing part includes a central pressing plate 6 and a driving part that drives its movement. Correspondingly, each side pressing part also includes a side pressing plate 7 and a driving part that drives its independent movement.

[0021] The drive unit employs a combination of hydraulic drive and guidance. Specifically, each drive unit includes a hydraulic cylinder 10 and two guide rods 8. The hydraulic cylinder 10 is fixedly mounted on the top of the top plate 2, with its piston rod 9 vertically passing downward through the top plate 2 and forming a sliding fit with it. The guide rods 8 also slide through the top plate 2. For the intermediate pressing part, the bottom ends of both the guide rods 8 and the piston rod 9 are fixedly connected to the top of the intermediate pressing plate 6. When the hydraulic cylinder 10 operates, causing the piston rod 9 to extend, it drives the intermediate pressing plate 6 to move smoothly downward along the guide rods 8 until the H-beam below is pressed firmly onto the pad 4 of the bottom plate 1. Conversely, when the piston rod 9 shortens, it drives the intermediate pressing plate 6 to move upward, releasing the workpiece.

[0022] The connection and driving principle of the side pressing part is the same. The bottom ends of its guide rod 8 and piston rod 9 are fixedly connected to the top of the side pressing plate 7. The independent lifting and lowering of the side pressing plate 7 is achieved by the extension and retraction of the piston rod 9.

[0023] To ensure uniform pressure when the middle pressing plate 6 and the side pressing plates 7 work together, this embodiment designs a linkage leveling mechanism. For example... Figure 2 As shown, a support platform 12 is fixedly installed on the bottom surface of each end of the middle pressing plate 6, and the bottom surface of the support platform 12 is flush with the bottom surface of the middle pressing plate 6. A pressing platform 13 is fixedly installed on the top surface of each side pressing plate 7 near the end of the middle pressing plate 6.

[0024] When welding large H-beams, the central pressing section and the two side pressing sections need to be pressed down simultaneously. During the descent, the pressure plate 13 on the side pressing plate 7 first contacts the support plate 12 on the central pressing plate 6. As the hydraulic cylinder 10 continues to act, the pressure plate 13 presses firmly onto the support plate 12. At this point, the bottom surface of the side pressing plate 7 is exactly on the same horizontal plane as the bottom surface of the central pressing plate 6. This structure ensures that in the large-size clamping mode, the three pressing plates can apply uniform downward pressure to the upper surface of the H-beam as a whole plane, effectively avoiding the problem of uneven force caused by different heights.

[0025] To further improve the uniformity of pressing and the anti-slip effect, several upper protruding strips 11 of the same size are fixedly installed on the lower surface of both the middle pressing plate 6 and the side pressing plates 7. These upper protruding strips 11 correspond to the lower protruding strips 5 on the base plate 1, and they are also made of soft, high-temperature resistant material. When the pressing plates are pressed down, the upper protruding strips 11 and lower protruding strips 5 fix the H-beam from both above and below, which not only disperses the pressure but also greatly increases the friction, ensuring the stability of the workpiece during the welding process.

[0026] The workflow of this embodiment is as follows: First, select the clamping mode according to the size of the H-beam to be welded. For small workpieces, only the hydraulic cylinder 10 of the middle pressing part is activated, so that the middle pressing plate 6 is pressed down alone to complete the fixation. For large workpieces, the hydraulic cylinders 10 of the middle pressing part and the two side pressing parts are activated simultaneously, so that the three pressing plates are pressed down together, and the bottom surface is automatically aligned by the cooperation of the support platform 12 and the pressure table 13 to achieve uniform overall clamping. After the fixation is completed, the welding operation can be carried out. After the welding is completed and the workpiece has cooled down, control the hydraulic cylinder 10 to lift all the pressing plates, and the formed H-beam can be taken out.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. 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 utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A steel structure welded and formed arrangement and fixing clamp, comprising a support frame, characterized in that, The support frame has an independently controllable central pressing part and two side pressing parts at its top. The side pressing parts are located on both sides of the central pressing part. The central pressing part presses the steel structure onto the support frame from the middle, while the side pressing parts press the steel structure onto the support frame from both sides. When welding small-sized steel structures, the central pressing part is pressed down to fix the steel structure onto the support frame. When welding large-sized steel structures, the central pressing part and the side pressing parts are pressed down to fix the steel structure onto the support frame.

2. The steel structure welding and forming arrangement fixing clamp according to claim 1, characterized in that, The support frame includes a base plate (1) and a top plate (2), and both sides of the base plate (1) and the top plate (2) are fixedly connected by support plates (3).

3. The steel structure welding and forming arrangement fixing clamp according to claim 2, characterized in that, A pad (4) is fixedly provided on the upper surface of the base plate (1), and a plurality of lower protrusions (5) are fixedly provided on the upper surface of the pad (4), the lower protrusions (5) being of the same size.

4. The steel structure welding and forming arrangement fixing clamp according to claim 2, characterized in that, The middle pressing part includes a middle pressing plate (6) and a driving part, and the side pressing part includes a side pressing plate (7) and a driving part. The driving part drives the middle pressing plate (6) and the side pressing plate (7) to move up and down respectively.

5. The steel structure welding and forming arrangement fixing clamp according to claim 4, characterized in that, The drive unit includes a hydraulic cylinder (10) and several guide rods (8). The guide rods (8) slide through the top plate (2). The hydraulic cylinder (10) is fixedly mounted on the top of the top plate (2). The piston rod (9) of the hydraulic cylinder (10) extends downward out of the top plate (2) and is slidably connected to the top plate (2).

6. The steel structure welding forming and fixing clamp according to claim 4, characterized in that, The bottom surfaces of both ends of the middle pressing plate (6) are fixedly provided with a support platform (12), and the bottom surface of the support platform (12) is flush with the bottom surface of the middle pressing plate (6); the top surfaces of both ends of the side pressing plate (7) are fixedly provided with a pressing platform (13), and when the pressing platform (13) presses on the corresponding support platform (12), the bottom surface of the middle pressing plate (6) is flush with the bottom surface of the side pressing plate (7).

7. The steel structure welding forming and fixing clamp according to claim 4, characterized in that, The lower surfaces of the middle pressing plate (6) and the side pressing plate (7) are each provided with a number of upper protrusions (11), and the upper protrusions (11) are of the same size.

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