Welding device for boiler pipeline
By designing a welding device for boiler pipes, a rotating ring and telescopic device are used to achieve stable rotation of the welding machine, solving the problem of inconvenient positioning in the welding of large boiler pipes and improving welding accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-24
AI Technical Summary
Large boiler pipes are difficult to move and position quickly during welding, and are prone to deviations, affecting welding accuracy and efficiency.
A welding device for boiler pipes was designed, including a frame, an alignment device, and a rolling device. By utilizing a rotating ring, a driving device, a telescopic device, and a guiding device, the welding machine can achieve stable rotation and rapid alignment of the pipes, thus avoiding the need for pipe rotation and positioning.
It improves welding accuracy and efficiency, adapts to pipes of different sizes, ensures pipe axis alignment, simplifies the operation process, and enhances work adaptability and stability.
Smart Images
Figure CN224026831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of boiler production equipment technology, and in particular to a welding device for boiler pipes. Background Technology
[0002] When manufacturing or installing boiler pipes, multiple sets of boiler pipes need to be welded together using welding equipment to ensure the length of the boiler pipes. However, some pipes used in large boilers have large diameters, and it is inconvenient to move the pipes to be connected during the welding process. It is difficult to quickly position and weld the pipe welding parts, and once moved, deviations are very easy to occur, requiring repositioning, which is very inconvenient. Utility Model Content
[0003] Therefore, in view of the above problems, this utility model proposes a welding device for boiler pipes.
[0004] To achieve the above objectives, the present invention provides a welding device for boiler pipes, including a frame, an alignment device mounted on the frame for quickly positioning and aligning the pipes, and a welding machine mounted on the frame via a rolling device that can rotate around the welding part of the pipe.
[0005] A further improvement is that the rolling device includes: a rotating ring rotatably mounted on the frame via a stabilizing device, a driving device disposed between the rotating ring and the frame, and a welding machine being raised and lowered on the rotating ring via a telescopic device.
[0006] A further improvement is that the stabilizing device includes: a bearing housing mounted on the frame, a rotating tube fixedly connected to the inner ring of the bearing housing, and the other end of the rotating tube being connected to the rotating ring.
[0007] A further improvement is that the driving device includes: a fixed sprocket fixedly mounted on the rotating tube, a rotating component mounted on the frame, and a rotating sprocket mounted on the rotating rod of the rotating component, wherein a transmission chain is provided between the rotating sprocket and the fixed sprocket.
[0008] A further improvement is that the telescopic device includes a first telescopic member disposed on the rotating ring, the telescopic rod of the first telescopic member being connected to the welding machine, and a guide device for enhancing stability being disposed between the welding machine and the rotating ring.
[0009] A further improvement is that the guiding device includes: at least one guide seat disposed on the rotating ring, a guide hole opened on the guide seat, and a guide post disposed on the welding machine for cooperating with the guide sleeve.
[0010] A further improvement is that the alignment device includes: at least two mounting brackets symmetrically arranged on the frame, at least two second telescopic members arranged on the mounting brackets, a third telescopic member arranged on the frame and corresponding to the second telescopic members, and arc-shaped blocks respectively arranged on the third telescopic member and the second telescopic member by a sliding positioning device.
[0011] A further improvement is that the sliding positioning device includes: a mounting plate disposed on the second telescopic member and the third telescopic member, at least two slide rails disposed on the mounting plate, and a slider slidably disposed on the slide rails. The slider is provided with an arc-shaped block, and a nut is also fixedly disposed on the slider. The axis of the nut faces the slide rail, and a screw is locked inside the nut for positioning the slider.
[0012] A further improvement is that the arc-shaped block has several anti-slip grooves to prevent the boiler pipes from slipping.
[0013] A further improvement is that the rotating component is a servo motor.
[0014] The advantages and beneficial effects of this utility model are as follows:
[0015] With a simple structure and convenient use, the welding machine is installed through the rolling device. During welding, there is no need to rotate the boiler pipes. Instead, the welding machine is moved, which avoids the problem of needing to reposition the boiler pipes after rotation. This improves work efficiency and accuracy. In addition, the alignment device can ensure that the axis of boiler pipes of different sizes is always aligned with the axis of the rolling device, making it highly adaptable to use. Attached Figure Description
[0016] Figure 1 This is a top view schematic diagram of a welding device for boiler pipes according to the present invention;
[0017] Figure 2 This is a schematic diagram of an alignment device for a welding apparatus for boiler pipes according to the present invention;
[0018] Figure 3 This is a schematic diagram of a rolling device and a welding machine for a boiler pipe welding apparatus according to the present invention;
[0019] Figure 4 This is an enlarged schematic diagram of part A of a welding device for boiler pipes according to this utility model;
[0020] In the diagram: 1. Frame; 2. Welding machine; 3. Rotating ring; 4. Bearing seat; 5. Rotating tube; 6. Fixed sprocket; 7. Rotating component; 8. Rotating sprocket; 9. Transmission chain; 10. First telescopic component; 11. Guide seat; 12. Guide column; 13. Mounting bracket; 14. Second telescopic component; 15. Arc block; 16. Mounting plate; 17. Slide rail; 18. Slider; 19. Nut; 20. Screw; 21. Third telescopic component. Detailed Implementation
[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0022] like Figures 1-4 As shown, a welding device for boiler pipes includes a frame 1, an alignment device mounted on the frame 1 for quickly positioning and aligning the pipe, and a welding machine 2 that can rotate around the welding part of the pipe is mounted on the frame 1 via a rolling device.
[0023] To facilitate control of the welding machine 2 rotating along the weld seam of the welding pipe, the rolling device includes: a rotating ring 3 rotatably mounted on the frame 1 via a stabilizing device, and a driving device disposed between the rotating ring 3 and the frame 1. The welding machine 2 is mounted on the rotating ring 3 via a telescopic device.
[0024] To improve rotational stability, the stabilizing device includes: a bearing seat 4 mounted on the frame 1, and a rotating tube 5 fixedly connected to the inner ring of the bearing seat 4, with the other end of the rotating tube 5 connected to the rotating ring 3.
[0025] To facilitate control of the rotation speed and thus improve the welding effect, the drive device includes: a fixed sprocket 6 fixedly mounted on the rotating tube 5, a rotating component 7 mounted on the frame 1, and a rotating sprocket 8 mounted on the rotating rod of the rotating component 7. A transmission chain 9 is provided between the rotating sprocket 8 and the fixed sprocket 6. The rotating component 7 is a servo motor.
[0026] To accommodate boiler pipes of various sizes, the telescopic device includes: a first telescopic member 10 disposed on the rotating ring 3, the telescopic rod of the first telescopic member 10 being connected to the welding machine 2, and a guide device for enhancing stability being disposed between the welding machine 2 and the rotating ring 3.
[0027] To improve the stability of the welding machine 2, the guiding device includes: at least one guide seat 11 disposed on the rotating ring 3, a guide hole (not shown in the figure) opened on the guide seat 11, and a guide post 12 disposed on the welding machine 2 for cooperating with the guide sleeve.
[0028] In order to cooperate with the rolling device so that the axis of the boiler pipe and the axis of the rotating ring 3 are located at the same position after the boiler pipe is aligned, the alignment device includes: at least two mounting brackets 13 symmetrically arranged on the frame 1, at least two second telescopic members 14 arranged on the mounting brackets 13, a third telescopic member 21 arranged on the frame 1 and corresponding to the second telescopic members 14, and arc-shaped blocks 15 respectively arranged on the third telescopic member 21 and the second telescopic member 14 by a sliding positioning device;
[0029] The axis of the rotating ring 3 corresponds to the midpoint between the third telescopic member 21 and the second telescopic member 14;
[0030] The third telescopic component 21 and the second telescopic component 14 can quickly center and position the boiler pipes immediately after startup, while ensuring that the axis of the rotating ring 3 corresponds to the axis of the boiler pipes of various sizes, thus improving the adaptability of use.
[0031] To facilitate fine-tuning of the distance between the two boiler pipe sections, the sliding positioning device includes: a mounting plate 16 disposed on the second telescopic member 14 and the third telescopic member 21; at least two slide rails 17 disposed on the mounting plate 16; and a slider 18 slidably disposed on the slide rails 17. The slider 18 is provided with an arc-shaped block 15, and a nut 19 is also fixedly disposed on the slider 18. The axis of the nut 19 faces the slide rail 17, and a screw 20 is locked inside the nut 19 for positioning the slider 18.
[0032] To improve the stability of the boiler pipe after positioning, the arc-shaped block 15 is provided with several anti-slip grooves (not shown in the figure) to prevent the boiler pipe from slipping.
[0033] The first telescopic component 10, the second telescopic component 14, and the third telescopic component 21 are telescopic motors, telescopic cylinders, or telescopic hydraulic cylinders.
[0034] Working principle: When in use, place the two sections of boiler pipe on the arc block 15 of the third telescopic component 21. At this time, the third telescopic component 21 and the second telescopic component 14 can be activated simultaneously to center the boiler pipe. Then push the boiler pipe to connect the two sections of pipe. Then lock the slider 18 with screw 20 to start welding. When welding, activate the first telescopic component 10 to bring the welding machine 2 close to the weld seam. Then activate the welding machine 2 and the rotating component 7 to control the welding machine 2 to weld along the weld seam.
[0035] 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 above are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A welding apparatus for boiler pipes, comprising a frame and an alignment device mounted on the frame for quickly positioning and aligning the pipes, characterized in that: A welding machine that can rotate around the welding part of the pipe is mounted on the frame via a rolling device; The rolling device includes: a rotating ring rotatably mounted on a frame via a stabilizing device, a driving device disposed between the rotating ring and the frame, and a welding machine mounted on the rotating ring via a telescopic device.
2. The welding device for boiler pipes according to claim 1, characterized in that: The stabilizing device includes: a bearing housing mounted on the frame, a rotating tube fixedly connected to the inner ring of the bearing housing, and the other end of the rotating tube being connected to the rotating ring.
3. The welding device for boiler pipes according to claim 1, characterized in that: The driving device includes: a fixed sprocket fixedly mounted on the rotating tube, a rotating component mounted on the frame, and a rotating sprocket mounted on the rotating rod of the rotating component. A transmission chain is provided between the rotating sprocket and the fixed sprocket.
4. The welding apparatus for boiler pipes according to claim 1, characterized in that: The telescopic device includes: a first telescopic member disposed on the rotating ring, the telescopic rod of the first telescopic member being connected to the welding machine, and a guide device for enhancing stability being disposed between the welding machine and the rotating ring.
5. A welding apparatus for boiler pipes according to claim 4, characterized in that: The guiding device includes: at least one guide seat disposed on the rotating ring, a guide hole opened on the guide seat, and a guide post disposed on the welding machine for cooperating with the guide sleeve.
6. The welding apparatus for boiler pipes according to claim 1, characterized in that: The alignment device includes: at least two mounting brackets symmetrically arranged on the frame, at least two second telescopic members arranged on the mounting brackets, a third telescopic member arranged on the frame and corresponding to the second telescopic members, and arc-shaped blocks respectively arranged on the third telescopic member and the second telescopic member by a sliding positioning device.
7. A welding apparatus for boiler pipes according to claim 6, characterized in that: The sliding positioning device includes: a mounting plate disposed on the second telescopic member and the third telescopic member, at least two slide rails disposed on the mounting plate, and a slider slidably disposed on the slide rails. The slider is provided with an arc-shaped block, and a nut is also fixedly disposed on the slider. The axis of the nut faces the slide rail, and a screw is locked inside the nut for positioning the slider.
8. A welding apparatus for boiler pipes according to claim 6, characterized in that: The arc-shaped block has several anti-slip grooves to prevent the boiler pipes from slipping.
9. A welding apparatus for boiler pipes according to claim 3, characterized in that: The rotating component is a servo motor.