A bellows welding device

By designing a bellows welding device with a support frame, a fixed ring, a rotating ring, and a clamping assembly, the problem of complex bellows welding operations was solved, resulting in a simplified welding process and reduced costs.

CN224347258UActive Publication Date: 2026-06-12LUAN 168 AEROSPACE PRECISION COMPONENTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LUAN 168 AEROSPACE PRECISION COMPONENTS CO LTD
Filing Date
2025-04-23
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing corrugated pipe welding process is difficult, and it is inconvenient for workers to operate the welding gun around the joint, which makes welding difficult.

Method used

A corrugated pipe welding device was designed, including a support frame, a fixed ring, a rotating ring, a drive assembly, and a clamping assembly. It utilizes structures such as an electric telescopic rod and a rotating rod to achieve automatic docking and welding of corrugated pipes and pipelines, simplifying the operation process.

Benefits of technology

It enables simple welding of corrugated pipes and pipelines, reducing operational difficulty and welding costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a corrugated pipe welding set relates to welding equipment technical field, and its technical key points include: support frame, the fixed ring is fixedly installed on the support frame, and the welding torch is installed on the fixed ring, the rotary ring is rotatably installed on the inner surface of fixed ring, the drive assembly is fixedly installed on the outer surface of fixed ring, can make rotary ring rotate, the center column is fixedly connected with the support frame at one end, the abutting assembly is provided with a plurality of, all set up on the center column, and this abutting assembly includes the mounting ring, the rotating rod, the torsional spring, the movable ring and electric telescopic handle, wherein, the mounting ring is fixedly installed on the outer surface of center column, the rotating rod is provided with a plurality, and a plurality of rotating rods are distributed on the circumference direction of mounting ring equally, and one end of each rotating rod is rotatably connected with the mounting ring, the torsional spring is fixedly installed between rotating rod and mounting ring, the movable ring is covered in the outside of center column, and the welding process is simple and convenient.
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Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically a corrugated pipe welding device. Background Technology

[0002] A corrugated pipe is a type of pipe with a regular wavy shape. Commonly used corrugated pipes are made of materials such as carbon steel, stainless steel, steel lined with plastic, or aluminum. Corrugated pipes are mainly used in situations where there are irregular bends or expansion joints, making it inconvenient to install pipes with fixed elbows. They are suitable for connecting pipes to pipes or pipes to equipment.

[0003] The simple and low-cost welding method uses clamps to connect and fix the corrugated pipe to other pipes. Then, the workers manually weld along the joint of the two pipes. Since the joint is usually circular, the workers need to walk around the joint to complete the welding operation. However, the welding gun has a certain length, and it is troublesome for the workers to hold the welding gun and walk around the corrugated pipe, which makes the welding difficult. Therefore, in order to solve the above technical problems, this utility model provides a corrugated pipe welding device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a corrugated pipe welding device, which features a simple and convenient welding process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrugated pipe welding device, comprising:

[0006] Support frame;

[0007] A fixing ring is fixedly installed on the support frame, and the welding torch is installed on the fixing ring;

[0008] A rotating ring is rotatably mounted on the inner surface of a fixed ring;

[0009] The drive assembly is fixedly mounted on the outer surface of the fixed ring, enabling the rotating ring to rotate;

[0010] The central column is fixedly connected at one end to the support frame;

[0011] Multiple clamping components are provided, all of which are mounted on the central column. Each clamping component includes a mounting ring, a rotating rod, a torsion spring, a movable ring, and an electric telescopic rod.

[0012] The mounting ring is fixedly installed on the outer surface of the central column. Multiple rotating rods are provided and are evenly distributed on the circumference of the mounting ring. One end of each rotating rod is rotatably connected to the mounting ring. The torsion spring is fixedly installed between the rotating rod and the mounting ring. The movable ring is sleeved on the outside of the central column. The fixed end of the electric telescopic rod is fixedly connected to the central column, and the movable end of the electric telescopic rod is fixedly connected to the movable ring.

[0013] Preferably, a rubber head is fixedly installed on the other end of each of the rotating rods.

[0014] Preferably, a limiting ring is provided at one end near the central column, and a threaded rod is rotatably installed on one side of the limiting ring. One end of the threaded rod passes through the interior of the support frame and is threadedly connected to the support frame. A sliding rod is slidably installed on the support frame, and one end of the sliding rod is fixedly connected to the limiting ring.

[0015] Preferably, an mounting sleeve is fixedly installed on the rotating ring, a threaded sleeve is fixedly installed on the mounting sleeve, and a tightening bolt is threadedly installed on the threaded sleeve.

[0016] Preferably, the drive assembly includes a motor, a gear, and a gear ring. The motor is fixedly mounted on the outer surface of the fixed ring, the gear ring is fixedly mounted on the outer surface of the rotating ring, and the gear is fixedly mounted on the output end of the motor. The gear and the gear ring are in a meshing state.

[0017] Beneficial effects

[0018] Compared with the prior art, the present invention provides a corrugated pipe welding device, which has the following advantages:

[0019] A fixed ring is fixedly installed on the support frame, and a rotating ring is rotatably installed on the inner surface of the fixed ring. A central column is fixedly installed on the support frame, and multiple clamping components are provided on the central column. The clamping components include a mounting ring, a rotating rod, a torsion spring, a movable ring, and an electric telescopic rod. The mounting ring is fixedly installed on the outer surface of the central column, one end of the rotating rod is rotatably connected to the mounting ring, the torsion spring is fixedly installed between the rotating rod and the mounting ring, the fixed end of the electric telescopic rod is fixedly connected to the central column, and the movable end of the electric telescopic rod is fixedly connected to the movable ring. The welding process is simple and convenient, and the welding device has a simple structure and low cost.

[0020] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a structural schematic diagram of one side of the fixed ring, rotating ring, and driving assembly in this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the fixed ring, rotating ring, and the other side of the drive assembly in this utility model;

[0025] Figure 4 In this utility model Figure 3 Enlarged view of part A in the image;

[0026] Figure 5 This is a schematic diagram of the central column and the clamping assembly in this utility model.

[0027] In the diagram: 1. Base plate; 2. First support plate; 3. Second support plate; 4. Central column; 5. Fixed ring; 6. Rotating ring; 7. Motor; 8. Gear; 9. Gear ring; 10. Welding torch; 11. Mounting sleeve; 12. Tightening bolt; 13. Threaded sleeve; 14. Mounting ring; 15. Rotating rod; 16. Torsion spring; 17. Movable ring; 18. Electric telescopic rod; 19. Rubber head; 20. Limiting ring; 21. Sliding rod; 22. Threaded rod. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1 to 5 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0029] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Please combine Figures 1 to 5 As shown, this utility model provides a corrugated pipe welding device. The welding device includes a support frame composed of a base plate 1, a first support plate 2 and a second support plate 3. The bottom ends of the first support plate 2 and the second support plate 3 are fixedly installed on the base plate 1. A fixing ring 5 is fixedly installed on the top end of the first support plate 2. The welding gun 10 is installed on the fixing ring 5. A rotating ring 6 is rotatably installed on the inner surface of the fixing ring 5. A driving component is installed on the outer surface of the fixing ring 5.

[0032] The drive assembly includes a motor 7, a gear 8, and a gear ring 9. The motor 7 is fixedly mounted on the outer surface of the fixed ring 5, the gear ring 9 is fixedly mounted on the outer surface of the rotating ring 6, and the gear 8 is fixedly mounted on the output end of the motor 7. The gear 8 and the gear ring 9 are in a meshing state.

[0033] A central column 4 is provided on the inner side of the rotating ring 6. One end of the central column 4 is fixedly connected to the second support plate 3. Multiple abutting components are provided on the central column 4. The abutting components include a mounting ring 14, a rotating rod 15, a torsion spring 16, a movable ring 17, and an electric telescopic rod 18.

[0034] The mounting ring 14 is fixedly mounted on the outer surface of the central column 4. Multiple rotating rods 15 are provided and are evenly distributed on the circumference of the mounting ring 14. One end of each rotating rod 15 is rotatably connected to the mounting ring 14. A torsion spring 16 is fixedly mounted between the rotating rod 15 and the mounting ring 14. A movable ring 17 is sleeved on the outside of the central column 4. The fixed end of the electric telescopic rod 18 is fixedly connected to the central column 4, and the movable end of the electric telescopic rod 18 is fixedly connected to the movable ring 17.

[0035] During welding, a pipe is first passed through the other end of the central column 4 and positioned outside the clamping assembly. Then, the movable end of the electric telescopic rod 18 in the clamping assembly extends outward, causing multiple rotating rods 15 to rotate outward. The other ends of the multiple rotating rods 15 contact the inner surface of the pipe, clamping and fixing the pipe.

[0036] Then the bellows is also passed through the other end of the central column 4 until one end of the bellows contacts and abuts against one end of the pipe. Then the movable end of the electric telescopic rod 18 located inside the bellows extends out, causing multiple rotating rods 15 to rotate. The other ends of the multiple rotating rods 15 abut and fix the bellows.

[0037] Finally, the drive component drives the rotating ring 6 to rotate, and the welding torch 10 welds the corrugated pipe to the pipeline. The welding torch 10 only needs to rotate around the corrugated pipe once. The welding process is simple and convenient, and the welding device has a simple structure and low cost.

[0038] A rubber head 19 is fixedly installed on the other end of each rotating rod 15. By using multiple rubber heads 19 to contact the inner surface of the bellows, not only can the effect of tight fixing be improved, but damage to the bellows can also be avoided.

[0039] To ensure that the welding point between the corrugated pipe and the pipeline is located at the end of the welding torch 10, a limiting ring 20 is provided at one end near the central column 4. A threaded rod 22 is rotatably installed on one side of the limiting ring 20. One end of the threaded rod 22 passes through the interior of the second support plate 3 and is threadedly connected to the second support plate 3. A sliding rod 21 is slidably installed on the second support plate 3. One end of the sliding rod 21 is fixedly connected to the limiting ring 20.

[0040] For pipes of different lengths, the position of the limiting ring 20 can be adjusted by the threaded rod 22. When fixing the pipe, the end of the pipe is brought into contact with the limiting ring 20, and the limiting ring 20 is used to limit the pipe. Then, after the corrugated pipe comes into contact with the pipe, the welding point can be easily and quickly located at the end of the welding gun 10.

[0041] An mounting sleeve 11 is fixedly installed on the rotating ring 6, and a threaded sleeve 13 is fixedly installed on the mounting sleeve 11. A tightening bolt 12 is threadedly installed on the threaded sleeve 13. The welding torch 10 is detachably installed on the rotating ring 6. For bellows of different diameters, the length of the welding torch 10 extending into the inner side of the rotating ring 6 can be changed so that the end of the welding torch 10 can maintain a suitable distance from the bellows, ensuring the normal progress of the welding process.

[0042] It should be noted that after the clamping assembly clamps and fixes the corrugated pipes or pipes of different sizes, the center line of the corrugated pipe or pipe is on the same straight line as the center line of the rotating ring 6. This can effectively ensure that the end of the welding torch 10 moves to every point of the rotating ring 6 and is at the same distance from the welding point.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A bellows welding device, characterized in that, include: Support frame; A fixing ring (5) is fixedly installed on the support frame, and a welding torch (10) is installed on the fixing ring (5); The rotating ring (6) is rotatably mounted on the inner surface of the fixed ring (5); The drive assembly is fixedly mounted on the outer surface of the fixed ring (5) and enables the rotating ring (6) to rotate; The central column (4) is fixedly connected at one end to the support frame; Multiple clamping components are provided, all of which are set on the central column (4). The clamping components include a mounting ring (14), a rotating rod (15), a torsion spring (16), a movable ring (17), and an electric telescopic rod (18). The mounting ring (14) is fixedly mounted on the outer surface of the central column (4). Multiple rotating rods (15) are provided, and the multiple rotating rods (15) are evenly distributed in the circumferential direction of the mounting ring (14). One end of each rotating rod (15) is rotatably connected to the mounting ring (14). The torsion spring (16) is fixedly mounted between the rotating rod (15) and the mounting ring (14). The movable ring (17) is sleeved on the outside of the central column (4). The fixed end of the electric telescopic rod (18) is fixedly connected to the central column (4), and the movable end of the electric telescopic rod (18) is fixedly connected to the movable ring (17).

2. The corrugated pipe welding device according to claim 1, characterized in that: A rubber head (19) is fixedly installed on the other end of each of the aforementioned rotating rods (15).

3. The corrugated pipe welding device according to claim 1, characterized in that: A limiting ring (20) is provided at one end near the central column (4). A threaded rod (22) is rotatably installed on one side of the limiting ring (20). One end of the threaded rod (22) passes through the interior of the support frame and is threadedly connected to the support frame. A slide rod (21) is slidably installed on the support frame. One end of the slide rod (21) is fixedly connected to the limiting ring (20).

4. The corrugated pipe welding device according to claim 1, characterized in that: An mounting sleeve (11) is fixedly installed on the rotating ring (6), and a threaded sleeve (13) is fixedly installed on the mounting sleeve (11). A tightening bolt (12) is threadedly installed on the threaded sleeve (13).

5. The corrugated pipe welding device according to claim 1, characterized in that: The drive assembly includes a motor (7), a gear (8), and a gear ring (9). The motor (7) is fixedly mounted on the outer surface of the fixed ring (5), the gear ring (9) is fixedly mounted on the outer surface of the rotating ring (6), and the gear (8) is fixedly mounted on the output end of the motor (7). The gear (8) and the gear ring (9) are in a meshing state.