Quickly clamping and unclamping fixing welding support

Abstract

This utility model relates to the technical field of welding auxiliary equipment and discloses a quick-clamping and fixing welding bracket, including a bracket with a support beam fixedly connected to it. Multiple first wheel frames are fixedly installed on the support beam, and support rollers are movably connected inside the first wheel frames. A vertical beam is fixedly connected to the rear side of the first wheel frames. Two first carrier plates are fixedly connected to the vertical beams, and second carrier plates are fixedly connected to the other two vertical beams. Cylinders are fixedly connected to the first carrier plates. Through the arrangement of multiple sets of first wheel frames, support rollers, cylinders, first U-shaped plates, second wheel frames, first positioning wheels, a base, second U-shaped plates, and third wheel frames and second positioning wheels, rapid positioning of two pipe sections can be achieved. Simultaneously, in conjunction with the second connecting beam and first wedge on one side of the two first U-shaped plates, while the first and second positioning wheels vertically clamp and position the pipes, the two second carrier plates push the clamping rubber to relatively move the two pipe sections.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment technology, and in particular to a quick-clamping and fixing welding bracket. Background Technology

[0002] Pipe welding is a process of connecting two or more sections of pipe into a whole. It is widely used in water supply, gas, petroleum, chemical and other fields. During operation, the welder needs to select the appropriate welding rod or welding wire according to the pipe material and melt and fuse the interface through electric arc, gas welding or other methods.

[0003] When welding two pipe sections, a welding bracket is needed to position the pipes for welding in order to align the welding surfaces. For example, the existing Chinese utility model patent CN207549528U, "Clamp for Pipe Welding," allows the two pipe sections to be placed on a V-groove and secured with fastening components, which facilitates positioning during pipe welding. However, since the V-groove and fastening components fix the pipes, both pipe sections are fixed at a single point, which can easily lead to misalignment or tilting of the pipe ends. In addition, the end face welding of the two pipe sections needs to be performed circumferentially. Therefore, after the fastening components are tightened, static friction occurs between the pipe and the groove, making it impossible to achieve uniform rotation welding of the pipe. This results in inconsistent weld widths, and unstable rotation causes sudden changes in the arc length, resulting in messy weld ripples and potential defects such as porosity and slag inclusions. Utility Model Content

[0004] The purpose of this invention is to provide a quick-release and fixed welding bracket, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A quick-release fixed welding bracket includes a bracket with a support beam fixedly connected to it. Multiple first wheel frames are fixedly mounted on the support beam. Support wheels are movably connected within each first wheel frame. A vertical beam is fixedly connected to the rear side of each first wheel frame. Two of the vertical beams have first carrier plates fixedly connected to them, and two other vertical beams have second carrier plates fixedly connected to them. A cylinder is fixedly connected to each first carrier plate and connected to an external air pump via an air pipe. A first U-shaped plate is fixedly connected to the output end of each cylinder. A second wheel frame is movably connected within the first U-shaped plate, and a first positioning wheel is rotatably connected within each second wheel frame. A base is fixedly connected to the second carrier plate. A second U-shaped plate is interposed between the second carrier plate and the base. A third wheel frame is movably connected within the second U-shaped plate located below the second carrier plate, and a second positioning wheel is rotatably connected within the third wheel frame. Slides are also fixedly connected to both sides of the support beam near the corresponding first wheel frames. A third carrier plate is fixedly connected to each slide, and a clamping rubber is movably connected to one side of each third carrier plate.

[0007] As a further preferred embodiment of this utility model, a main controller is fixedly connected to one side of the bracket, and the main controller is electrically connected to an external air pump via a cable.

[0008] As a further preferred embodiment of this utility model, a first sliding groove is provided on both sides of the first U-shaped plate, and the sliders on both sides of the second wheel frame are respectively slidably connected in the corresponding first sliding groove. A first compression spring is also fixedly connected between the first U-shaped plate and the second wheel frame.

[0009] As a further preferred embodiment of this utility model, a partition is fixedly connected inside the second U-shaped plate. Second sliding grooves are provided on both sides of the second U-shaped plate located below the partition. The sliders on both sides of the third wheel frame are slidably connected within the corresponding second sliding grooves. A second compression spring is fixedly connected between the partition and the third wheel frame. A reinforcing shaft is fixedly connected between the partition and the top of the second U-shaped plate. The reinforcing shaft also passes through the shaft hole at the center of the second carrier plate and the base. By placing the pipe between multiple sets of support rollers, the pipe can be longitudinally clamped and positioned by the vertically displaced first and second positioning rollers. Simultaneously, it ensures the welding and rotation of the contact surfaces of the two pipe sections.

[0010] As a further preferred embodiment of this utility model, a first connecting beam is fixedly connected between adjacent first U-shaped plates and second U-shaped plates, and a first connecting beam is also fixedly connected between two second U-shaped plates. By connecting the first U-shaped plates and second U-shaped plates, as well as the two second U-shaped plates, through the first connecting beams, the two first positioning wheels and second positioning wheels can be driven vertically and vertically with fewer power units, thereby reducing the overall component cost of the equipment.

[0011] As a further preferred embodiment of this utility model, the two first U-shaped plates are respectively fixedly connected to the second connecting beam on the side opposite to the first connecting beam. The bottom side of the second connecting beam is fixedly connected to the first wedge. The two cylinders drive the corresponding first U-shaped plates to move vertically, and can simultaneously drive the first wedge to move vertically through the second connecting beam, thereby providing a power source for the movement of the clamping rubber, so that no additional energy-consuming power equipment is needed.

[0012] As a further preferred embodiment of this utility model, a second wedge is fixedly connected to one side of the third carrier plate, a shaft seat is fixedly connected to the side of the second U-shaped plate opposite to the second wedge, and a rotating shaft is fixedly connected to the center of one side of the clamping rubber. The rotating shaft is inserted into the shaft seat and limited by a snap ring. A third compression spring is also fitted on the rotating shaft located between the shaft seat and the clamping rubber. The conical clamping rubber, together with the rotating shaft and the third compression spring, can achieve force collapse. In turn, when the second connecting beam and the first wedge are used to position and clamp the pipe with the first positioning wheel and the second positioning wheel, the two clamping rubbers can push the two pipe sections relative to each other, so that the welding surfaces of the two pipes at both ends abut against each other.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this invention, by setting up multiple sets of first wheel frames, support rollers, cylinders, first U-shaped plates, second wheel frames, first positioning wheels, bases, second U-shaped plates, and third wheel frames and second positioning wheels, rapid positioning of two pipe sections can be achieved. At the same time, with the second connecting beam and first wedge block on one side of the two first U-shaped plates, the first positioning wheels and second positioning wheels can vertically clamp and position the pipes, while the two second carrier plates push the clamping rubber to push the two pipe sections relative to each other, thereby ensuring that the welding surfaces of the two pipe sections abut against each other. The rotational welding of the two pipe sections is achieved through the support rollers, first positioning wheels, second positioning wheels, clamping rubber, and rotating shaft. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the connection structure between the first carrier plate and the cylinder of this utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure between the second carrier plate and the base of this utility model.

[0018] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0019] In the diagram: 1. Bracket; 2. Support beam; 3. First wheel frame; 4. Support roller; 5. Vertical beam; 6. First carrier plate; 7. Second carrier plate; 8. Cylinder; 9. First U-shaped plate; 10. Second wheel frame; 11. First positioning wheel; 12. Base; 13. Second U-shaped plate; 14. Third wheel frame; 15. Second positioning wheel; 16. Slide table; 17. Third carrier plate; 18. Clamping rubber; 19. Main controller; 20. First slide groove; 21. First compression spring; 22. Partition plate; 23. Reinforcing shaft; 24. Second slide groove; 25. Second compression spring; 26. First connecting beam; 27. Second connecting beam; 28. First wedge; 29. ​​Second wedge; 30. Shaft seat; 31. Rotating shaft; 32. Third compression spring. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1-4 As shown, this utility model provides a quick-release fixed welding bracket, including a bracket 1. A support beam 2 is fixedly connected to the bracket 1. Multiple first wheel frames 3 are fixedly installed on the support beam 2. Support wheels 4 are movably connected inside the first wheel frames 3. Vertical beams 5 are fixedly connected to the rear side of the first wheel frames 3. First carrier plates 6 are fixedly connected to two of the vertical beams 5, and second carrier plates 7 are fixedly connected to the other two vertical beams 5. Cylinders 8 are fixedly connected to the first carrier plates 6. Cylinders 8 are connected to an external air pump through air pipes. A first U-shaped plate 9 is fixedly connected to the output end of the cylinder 8. The first U-shaped plate 9 is movably connected inside the first U-shaped plate 9. A second wheel frame 10 is movably connected, and a first positioning wheel 11 is rotatably connected inside the second wheel frame 10. A base 12 is fixedly connected to the second carrier plate 7. A second U-shaped plate 13 is inserted and connected between the second carrier plate 7 and the base 12. A third wheel frame 14 is movably connected inside the second U-shaped plate 13 located below the second carrier plate 7. A second positioning wheel 15 is rotatably connected inside the third wheel frame 14. A slide table 16 is also fixedly connected to both sides of the support beam 2 near the corresponding positions of the first wheel frame 3. A third carrier plate 17 is fixedly connected to the slide table 16. A clamping rubber 18 is movably connected to one side of the third carrier plate 17.

[0022] like Figure 1 As shown, a main controller 19 is fixedly connected to one side of the bracket 1. The main controller 19 is electrically connected to an external air pump via a cable.

[0023] like Figures 1-4As shown, the first U-shaped plate 9 has first grooves 20 on both sides. The sliders on both sides of the second wheel frame 10 are slidably connected to the corresponding first grooves 20. A first compression spring 21 is fixedly connected between the first U-shaped plate 9 and the second wheel frame 10. A partition 22 is fixedly connected inside the second U-shaped plate 13. The second U-shaped plate 13 located below the partition 22 has second grooves 24 on both sides. The sliders on both sides of the third wheel frame 14 are slidably connected to the corresponding second grooves 24. A second compression spring 25 is fixedly connected between the partition 22 and the third wheel frame 14. A spring is fixedly connected between the partition 22 and the top of the second U-shaped plate 13. The reinforcing shaft 23 also passes through the shaft hole at the center of the second carrier plate 7 and the base 12, placing the pipe between multiple sets of support rollers 4. The pipe can be longitudinally clamped and positioned by the vertically displaced first positioning roller 11 and second positioning roller 15. Simultaneously, it ensures the welding and rotation of the contact surfaces of the two pipe sections. A first connecting beam 26 is fixedly connected between adjacent first U-shaped plates 9 and second U-shaped plates 13, and also between two second U-shaped plates 13. By connecting the first U-shaped plates 9 and second U-shaped plates 13, as well as the two second U-shaped plates 13, through the first connecting beams 26, less power can be used. The unit synchronously drives the two first positioning wheels 11 and the second positioning wheel 15 to move vertically, reducing the overall component cost of the equipment. Two first U-shaped plates 9 are fixedly connected to a second connecting beam 27 on opposite sides of the first connecting beam 26. A first wedge 28 is fixedly connected to one side of the bottom of the second connecting beam 27. Two cylinders 8 drive the corresponding first U-shaped plates 9 to move vertically, which can synchronously drive the first wedge 28 to move vertically via the second connecting beam 27, thus providing a power source for the movement of the clamping rubber 18. Therefore, no additional energy-consuming power equipment is needed. A second wedge 29 is fixedly connected to one side of the third carrier plate 17, and the second U-shaped plates 13 are opposite sides of the first connecting beam 26. A bearing seat 30 is fixedly connected to one side of the second wedge 29, and a rotating shaft 31 is fixedly connected to the center of one side of the clamping rubber 18. The rotating shaft 31 is inserted into the bearing seat 30 and limited by a snap ring. A third compression spring 32 is also fitted on the rotating shaft 31 located between the bearing seat 30 and the clamping rubber 18. The conical clamping rubber 18, together with the rotating shaft 31 and the third compression spring 32, can achieve force collapse. In turn, when the second connecting beam 27 and the first wedge 28 position and clamp the pipe with the first positioning wheel 11 and the second positioning wheel 15, the two clamping rubbers 18 can push the two pipe sections relative to each other, so that the welding surfaces of the two pipes at both ends abut against each other.

[0024] It should be noted that this utility model is a quick-release and fixed welding bracket. Before welding, the two pipe sections are placed on multiple rollers 4 on the support beam 2 to support the pipes and facilitate their rotation. Then, the main controller 19, in conjunction with an external air pump, starts the cylinder 8. The output end of the cylinder 8 drives the first U-shaped plate 9 to move downward. Thus, the first U-shaped plate 9, through the first connecting beam 26, simultaneously drives the second U-shaped plate 13 to move downward. During the downward movement, the first positioning wheel 11 below the first U-shaped plate 9 and the second positioning wheel 15 below the second U-shaped plate 13 will abut against the pipe, clamping the pipe from above and below with the rollers 4. At the same time, the first U-shaped plate 9 and the second U-shaped plate 13 move downward. The first step causes the second connecting beam 27 on one side to move down, and the first wedge 28 at the bottom of the second connecting beam 27 pushes the second wedge 29 to one side. This causes the two third carrier plates 17 to move their corresponding clamping rubbers 18 toward the pipe through the internal rotating shaft 31. Thus, the two clamping rubbers 18 push the two pipe sections relative to each other. Depending on the pipe length, after the clamping rubbers 18 touch one end of the pipe, they will push the rotating shaft 31 to one side and compress the third compression spring 32. During welding, the pipe can be manually rotated and rotated at a uniform speed under the rotational support of the support roller 4, the first positioning wheel 11, and the second positioning wheel 15, ensuring a uniform weld.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-release fixed welding bracket, characterized in that: Includes a bracket (1), on which a support beam (2) is fixedly connected, and on which a plurality of first wheel frames (3) are fixedly installed, with a support wheel (4) movably connected inside the first wheel frame (3), and a vertical beam (5) fixedly connected to the rear side of the first wheel frame (3), wherein two of the vertical beams (5) are fixedly connected to a first carrier plate (6), and the other two of the vertical beams (5) are fixedly connected to a second carrier plate (7), and a cylinder (8) is fixedly connected to the first carrier plate (6), the cylinder (8) being connected to an external air pump through an air pipe, and a first U-shaped plate (9) fixedly connected to the output end of the cylinder (8), and a second wheel frame (10) movably connected inside the first U-shaped plate (9). The second wheel frame (10) is rotatably connected to the first positioning wheel (11), the second carrier plate (7) is fixedly connected to the base (12), the second carrier plate (7) and the base (12) are interlaced with the second U-shaped plate (13), the second U-shaped plate (13) located below the second carrier plate (7) is movably connected to the third wheel frame (14), the third wheel frame (14) is rotatably connected to the second positioning wheel (15), the two sides of the support beam (2) are also fixedly connected to the corresponding positions of the first wheel frame (3), the third carrier plate (17) is fixedly connected to the slide (16), and the clamping rubber (18) is movably connected to one side of the third carrier plate (17).

2. The quick-clamping and unloading fixed welding bracket according to claim 1, characterized in that: A main controller (19) is fixedly connected to one side of the bracket (1), and the main controller (19) is electrically connected to an external air pump via a cable.

3. The quick-clamping and unloading fixed welding bracket according to claim 1, characterized in that: The first U-shaped plate (9) has a first groove (20) on both sides. The sliders on both sides of the second wheel frame (10) are slidably connected in the corresponding first groove (20). A first compression spring (21) is also fixedly connected between the first U-shaped plate (9) and the second wheel frame (10).

4. The quick-release fixed welding bracket according to claim 1, characterized in that: A partition (22) is fixedly connected inside the second U-shaped plate (13). A second sliding groove (24) is provided on both sides of the second U-shaped plate (13) located below the partition (22). The sliders on both sides of the third wheel frame (14) are slidably connected in the corresponding second sliding groove (24). A second compression spring (25) is fixedly connected between the partition (22) and the third wheel frame (14). A reinforcing shaft (23) is fixedly connected between the partition (22) and the top of the second U-shaped plate (13). The reinforcing shaft (23) also passes through the shaft hole at the center of the second carrier plate (7) and the base (12).

5. The quick-release fixed welding bracket according to claim 1, characterized in that: A first connecting beam (26) is fixedly connected between adjacent first U-shaped plates (9) and second U-shaped plates (13), and a first connecting beam (26) is also fixedly connected between two second U-shaped plates (13).

6. The quick-clamping and unloading fixed welding bracket according to claim 1, characterized in that: The two first U-shaped plates (9) are respectively fixedly connected to the second connecting beam (27) on the side opposite to the first connecting beam (26), and the bottom side of the second connecting beam (27) is fixedly connected to the first wedge (28).

7. A quick-release fixed welding bracket according to claim 6, characterized in that: The third carrier plate (17) is fixedly connected to a second wedge (29) on one side. The second U-shaped plate (13) is fixedly connected to a bearing seat (30) on the side opposite to the second wedge (29). A rotating shaft (31) is fixedly connected to the center of one side of the clamping rubber (18). The rotating shaft (31) is inserted into the bearing seat (30) and limited by a snap ring. The rotating shaft (31) located between the bearing seat (30) and the clamping rubber (18) is also fitted with a third compression spring (32).

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