Bundy tube welding equipment

By designing the conveying, centering, and cutting components of the Bondi tube welding device, the welding quality problem caused by the deformation of the Bondi tube during transportation was solved, achieving high-precision and high-quality welding results.

CN224445131UActive Publication Date: 2026-07-03HE BEI HONG REN BANG DI GUAN YE YOU XIAN GONG SI
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HE BEI HONG REN BANG DI GUAN YE YOU XIAN GONG SI
Filing Date
2025-07-25
Publication Date
2026-07-03

Smart Images

  • Figure CN224445131U_ABST
    Figure CN224445131U_ABST
Patent Text Reader

Abstract

This utility model discloses a Bondi tube welding device, including a welding torch, a base, a tube body, and a conveying and centering assembly disposed on both sides of the base to drive the tube body to move and rotate horizontally in opposite directions; an actuator; and a cutting assembly. The tube body is inserted into the cutting assembly, and the actuator drives the cutting assembly to move up and down reciprocally. When moving downwards, it cuts one end of the tube body. The beneficial effects of this utility model are that the cutting assembly can actively cut the tube body, resulting in a neat end face, which facilitates welding with the welding torch and improves welding quality; the conveying and centering assembly can automatically move the tube body to the centering position, directly aligning it with the welding torch, thus improving welding accuracy.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding technology, and more specifically, to a welding device for Bondi pipes. Background Technology

[0002] Bondi tubes often require welding during practical use. Due to their material properties, they are easily deformed by collisions during transportation, especially at both ends. Once deformed, the welding quality will be severely affected. Therefore, in order to solve the above problem, a mechanism was designed to cut off the deformed parts before welding. Utility Model Content

[0003] To address the above deficiencies, this utility model provides a Bondi tube welding device to solve the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The Bondi tube welding apparatus includes a welding torch, a base, a tube body, and also includes...

[0006] The conveying and centering components are located on both sides of the base, and the drive tube body moves and rotates horizontally in opposite directions.

[0007] Actuator;

[0008] The tube body is inserted into the cutting assembly, and the actuator drives the cutting assembly to move up and down reciprocally. When it moves downward, it performs a cutting operation on one end of the tube body.

[0009] Furthermore, the conveying and centering assembly includes a telescopic rod 1 installed on both sides of the base. A first bearing is installed at the telescopic end of the telescopic rod 1. A rotating tube is installed on the inner ring of the first bearing. A miniature hydraulic rod is installed on the inner ring of the rotating tube for clamping the tube body. A drive motor is installed at the telescopic end of the telescopic rod 1. The drive motor is connected to the rotating tube for transmission.

[0010] Furthermore, the cutting assembly includes a groove at the center of the upper surface of the base, a sliding block installed in the groove, an actuator installed between the bottom of the groove and the sliding block, driving the sliding block to move up and down along the groove, and non-through annular grooves on both sides of the sliding block for placing the tube body. The base has through holes on both sides for the tube body to pass through. The through holes, annular grooves and the rotation axis of the rotating tube are on the same straight line. Shearing blades are provided at positions close to each other on the annular grooves and through holes.

[0011] Furthermore, the lower end of the base is provided with an active discharge mechanism, which includes an air jet pipe installed below the base. A conical opening is provided on the lower surface of the sliding block near the center. The air jet pipe is fitted with the conical opening. An air passage is provided inside the sliding block, which connects the conical opening and the annular groove.

[0012] Furthermore, there are two actuators, with the jet pipe located in the middle of the actuators.

[0013] Furthermore, material discharge channels are opened on both sides of the base.

[0014] The beneficial effects of this utility model are: the cutting component can actively cut the pipe body, and the cut end face is in a regular state, which facilitates the welding gun to weld the pipe body and improves the welding quality.

[0015] By setting the centering component, the pipe body can be automatically moved to the centering position and directly aligned with the welding torch, thus improving welding accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the Bondi tube welding device described in this utility model;

[0017] Figure 2 This is a schematic diagram of the conveyor alignment components;

[0018] Figure 3 This is a schematic diagram of the cross-section of the rotating tube;

[0019] Figure 4 This is a top view of the slider;

[0020] Figure 5 This is an enlarged schematic diagram of the slider;

[0021] In the diagram, 1. Welding torch; 2. Base; 3. Pipe body; 4. Conveying and centering assembly; 5. Actuator; 6. Cutting assembly; 14. Telescopic rod one; 42. First bearing; 43. Rotating tube; 44. Miniature hydraulic rod; 45. Drive motor; 61. Slide groove; 62. Sliding block; 64. Annular groove; 65. Through hole; 66. Shearing blade; 21. Air jet pipe; 22. Conical nozzle; 23. Ventilation pipe; 24. Discharge channel. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] This application provides a Bondi tube welding apparatus; please refer to [reference needed]. Figures 1-5 Includes welding torch 1, base 2, pipe body 3, and also includes,

[0024] The conveying centering component 4 is located on both sides of the base 2, and the drive tube body 3 moves and rotates horizontally in opposite directions.

[0025] Actuator 5;

[0026] Cutting component 6, tube body 3 is inserted into cutting component 6, actuator 5 drives cutting component 6 to move up and down reciprocally, and when moving downward, it performs a cutting operation on one end of tube body 3.

[0027] In practical applications, the pipe body 3 to be welded is passed through the conveying and centering assembly 4 and moved into the cutting assembly 6. First, the cutting assembly 6 is controlled to cut the pipe body 3. Then, the conveying and centering assembly 4 is controlled to work. The conveying and centering assembly 4 clamps the pipe body 3 and drives the pipe body 3 to move in opposite directions until the two pipe bodies 3 are directly below the welding gun 1. The welding gun 1 is then controlled to move to the position of the pipe body 3. Then, the conveying and centering assembly 4 is controlled to drive the pipe body 3 to rotate in order to cooperate with the welding gun 1 for welding.

[0028] After welding is completed, control the conveying and centering assembly 4 to release the pipe body 3 and pull the pipe body 3 out of the conveying and centering assembly 4.

[0029] Reference Figure 1 , Figure 2 and Figure 3 The conveying and centering assembly 4 includes telescopic rods 41 installed on both sides of the base 2. A first bearing 42 is installed at the telescopic end of the telescopic rod 41. A rotating tube 43 is installed on the inner ring of the first bearing 42. A miniature hydraulic rod 44 is installed on the inner ring of the rotating tube 43 for clamping the tube body 3. A drive motor 45 is installed at the telescopic end of the telescopic rod 41. The drive motor 45 is connected to the rotating tube 43 for transmission.

[0030] In practical applications, after the cutting component 6 completes the cutting, the empty space originally occupied by the cutting component 6 will be freed up. At this time, the micro hydraulic rod 44 is extended and the telescopic rod 41 is shortened, driving the tube bodies 3 to approach each other at the same speed until they touch each other, achieving the purpose of centering and facilitating welding by the welding torch 1. At the same time, the drive motor 45 is rotated, which indirectly drives the tube body 3 to rotate, in order to cooperate with the welding torch 1 to move down for welding. After welding is completed, the welding torch 1 is reset, and the welded tube body 3 is manually pulled out from the conveying centering component 4.

[0031] Reference Figure 1 , Figure 4 and Figure 5 The cutting assembly 6 includes a groove 61 at the center of the upper surface of the base 2. A sliding block 62 is installed in the groove 61. An actuator 5 is installed between the bottom of the groove 61 and the sliding block 62, driving the sliding block 62 to move up and down along the groove 61. The sliding block 62 has non-through annular grooves 64 on both sides for placing the tube body 3. The base 2 has through holes 65 on both sides for the tube body 3 to pass through. The rotation axis of the through hole 65, the annular groove 64 and the rotating tube 43 are on the same straight line. Shearing blades 66 are provided at close positions on the annular groove 64 and the through hole 65.

[0032] In practical applications, the initial position of the sliding block 62 is as follows: Figure 1 At the position shown, the tube body 3 is manually inserted into the annular groove 64. Then, the actuator 5 is shortened, causing the sliding block 62 to slide downward. The sliding block 62 slides stably through the action of the groove 61. When the sliding block 62 moves, there is relative movement between the annular groove 64 and the through hole 65. The shearing force generated between them cuts the tube body 3. The sliding block 62 drives the cut section of the tube body 3 to the position of the discharge port 24.

[0033] Reference Figure 1 , Figure 4 and Figure 5 The lower end of the base 2 is provided with an active discharge mechanism, which includes an air jet pipe 21 installed below the base 2. A conical opening 22 is provided on the lower surface of the sliding block 62 near the center. The air jet pipe 21 is fitted with the conical opening 22. An air passage 23 is provided inside the sliding block 62, which connects the conical opening 22 and the annular groove 64.

[0034] In practical applications, when the sliding block 62 moves to the bottom, the jet pipe 21 connects with the conical opening 22, and they are sealed. Then, the external air compressor is controlled to work, so that high-pressure gas is input into the ventilation pipe 23 through the jet pipe 21 and discharged from one side of the annular groove 64 to blow down the pipe body 3, thus achieving the purpose of active material feeding.

[0035] Reference Figure 1 , Figure 4 and Figure 5 There are two actuators 5, with the jet pipe 21 located in the middle of actuator 5.

[0036] In practical applications, two actuators 5 are used to make the movement of the sliding block 62 more stable.

[0037] Reference Figure 1 The base 2 has discharge channels 24 on both sides.

[0038] In practical applications, the blown-down tube body 3 is discharged from the discharge channel 24.

Claims

1. A Bondi tube welding device, comprising a welding torch (1), a base (2), and a tube body (3), characterized in that, It also includes, The conveying centering component (4) is located on both sides of the base (2) to drive the tube body (3) to move and rotate horizontally in opposite directions; Actuator (5); Cutting assembly (6), tube body (3) is inserted into cutting assembly (6), actuator (5) drives cutting assembly (6) to move up and down reciprocally, and when moving down, it performs a cutting operation on one end of tube body (3).

2. The bonding tube welding apparatus of claim 1, wherein The conveying centering assembly (4) includes a telescopic rod (41) installed on both sides of the base (2). A first bearing (42) is installed at the telescopic end of the telescopic rod (41). A rotating tube (43) is installed on the inner ring of the first bearing (42). A miniature hydraulic rod (44) is installed on the inner ring of the rotating tube (43) for clamping the tube body (3). A drive motor (45) is installed at the telescopic end of the telescopic rod (41). The drive motor (45) is connected to the rotating tube (43) in a transmission connection.

3. The bonding tube welding apparatus of claim 2, wherein The cutting assembly (6) includes a groove (61) at the center of the upper surface of the base (2), a sliding block (62) is installed in the groove (61), and an actuator (5) is installed between the bottom of the groove (61) and the sliding block (62) to drive the sliding block (62) to move up and down along the groove (61). The sliding block (62) has non-penetrating annular grooves (64) on both sides for placing the tube body (3). The base (2) has through holes (65) on both sides for the tube body (3) to pass through. The rotation axis of the through hole (65), the annular groove (64) and the rotating tube (43) are on the same straight line. The annular groove (64) and the through hole (65) are provided with shearing blades (66) at close proximity to each other.

4. The bonding tube welding apparatus of claim 3, wherein The lower end of the base (2) is provided with an active discharge mechanism, which includes an air jet pipe (21) installed below the base (2). A conical opening (22) is provided on the lower surface of the sliding block (62) near the center. The air jet pipe (21) is fitted with the conical opening (22). A ventilation pipe (23) is provided inside the sliding block (62). The ventilation pipe (23) connects the conical opening (22) and the annular groove (64).

5. The bonding tube welding apparatus of claim 4, wherein There are two actuators (5), with the jet pipe (21) located in the middle of the actuators (5).

6. The bonding tool welding apparatus of any one of claims 1-4, wherein, Material discharge channels (24) are opened on both sides of the base (2).