A rapid alignment method for pipe assembly
By designing the support components and centering adjustment mechanism, automatic centering and spacing adjustment before pipe welding are achieved, solving the problem of manual adjustment required in the existing technology, improving welding efficiency and quality, and supporting single-person operation.
Patent Information
- Application Number
- CN202310454264.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-25
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2043-04-25
AI Technical Summary
In existing technologies, pipe welding requires the assistance of personnel to adjust the gap at the welding ends, which is cumbersome and labor-intensive.
By employing support components and a centering adjustment mechanism, and through the cooperation of screws and screw blocks, the automatic centering and spacing adjustment of the pipeline can be achieved, allowing a single person to complete the welding preparation.
It simplifies the preparation work before pipe welding, reduces manpower consumption, improves welding efficiency and quality, and the device can be easily disassembled and reused.
Smart Images

Figure CN116352362B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pipeline installation technology, specifically a method for rapid alignment during pipeline assembly. Background Technology
[0002] During pipe assembly and welding, it typically requires one welder and two pipe-supporting personnel to work together. First, the pipe ends are cut according to standards. Then, the pipe-supporting personnel align the two pipe ends, maintaining the standard gap between the cuts. The welder then performs spot welding, and the main welding can only proceed after the spot welds are secure. During spot welding, the pipe-supporting personnel must keep the pipes stationary, making the process tedious and labor-intensive.
[0003] A search revealed that utility model patent CN218638976U discloses a large-diameter pipe alignment device. This device uses two sets of limiting components on a circular support frame, with the two sets of limiting components coaxially aligned. Two connecting pipe openings are fixed by the two limiting components respectively. Simultaneously, limiting blocks are set on the limiting rods, ensuring that the circumferentially distributed limiting rods are adjusted to the same position. Therefore, the pipe openings can be corrected and adjusted to ensure they are circular during welding, thus achieving pipe alignment.
[0004] However, when the above-mentioned alignment device is used to align two pipes, after fixing one pipe, it still requires the assistance of auxiliary personnel to adjust the gap between the welded ends of the two pipes, which needs to be improved. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a rapid alignment method for pipe assembly, which solves the problem that when aligning two pipes, after fixing one pipe, it is still necessary to have auxiliary personnel assist in adjusting the gap between the welded ends of the two pipes.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid alignment device for pipe assembly, comprising:
[0007] A support assembly, the support assembly comprising two steel rings connected to each other by a plurality of support plates;
[0008] The centering adjustment mechanism is provided in two sets, which are arranged side by side along the axial direction of the support assembly. The centering adjustment mechanism includes several first screws, the axis of which is arranged radially along the steel ring. Two first screws are threadedly connected to each support plate.
[0009] The spacing adjustment mechanism includes two sets of the two sets of the spacing adjustment mechanism, which are symmetrically arranged around the center of the steel ring. The spacing adjustment mechanism includes a fixed block, which is fixedly connected to one side of the support plate. A second screw is rotatably connected to one side of the support plate. The second screw is threadedly connected to a slider, which is slidably connected to the middle of the support plate. One of the first screws is threadedly connected to the middle of the slider.
[0010] Preferably, the first screw is rotatably connected to a pressure head at one end located inside the steel ring.
[0011] Preferably, the first screw is fixedly connected to a first screw block at one end located outside the steel ring.
[0012] Preferably, a groove is provided on one side of the support plate, and limit grooves are provided on both sides of the slider, and the slider is slidably connected to the inner wall of the groove through the limit grooves.
[0013] Preferably, a guide rod is fixedly connected to one side of the fixing block, and the slider is slidably connected to the outer wall of the guide rod.
[0014] Preferably, a second screw block is fixedly connected to one end of the second screw.
[0015] Preferably, the support component is divided into two semicircular rings, and the two semicircular rings are connected by a connecting component.
[0016] Preferably, the connecting assembly includes a convex plate, and both ends of the semicircular ring are provided with convex plates. The two convex plates at one end are rotatably connected by a shaft pin, and the two convex plates at the other end are fixed together by connecting bolts.
[0017] Another objective of this invention is to provide a method for rapid alignment during pipe assembly, comprising the following steps:
[0018] S1. By fitting the support components onto the outside of the pipe to be connected;
[0019] S2. One pipe is secured by multiple first screws in one set of centering adjustment mechanisms, and then the first screws in another set of centering adjustment mechanisms installed on the spacing adjustment mechanism are secured to the outside of the pipe to achieve initial fixation of the other pipe.
[0020] S3. By rotating the second screw in the spacing adjustment mechanism, the slider moves in coordination with it, thereby driving the second screw in the middle to adjust the spacing between the adjacent second screw, thus realizing the adjustment of the welding end spacing of the two pipes.
[0021] S4. After adjusting to the appropriate position, the remaining first screws are pressed against the outside of the pipe. Then, fine-tuning is performed using multiple first screws to align the two pipes, and then they are welded.
[0022] This invention provides a method for rapid alignment during pipe assembly. It offers the following advantages:
[0023] 1. The present invention, through the setting of the spacing adjustment mechanism, enables the adjustment of the distance between the end faces of two pipes during the alignment adjustment of pipe welding operations. The adjustment operation is relatively convenient and can be carried out by a single person, effectively avoiding the adverse effects of excessively large or small distance between the end faces of the base material on the welding quality.
[0024] 2. The present invention enables convenient assembly of the support components through the set connection components, and the device can be easily disassembled after welding, making it easy to reuse. Attached Figure Description
[0025] Figure 1 This is a perspective view of the present invention;
[0026] Figure 2 This is a schematic diagram of the spacing adjustment mechanism of the present invention;
[0027] Figure 3 This is a schematic diagram of the slider structure of the present invention;
[0028] Figure 4 This is a schematic diagram of the pipeline alignment according to the present invention;
[0029] Figure 5 This is a schematic diagram of Embodiment 2 of the present invention.
[0030] Among them, 10 is the support assembly; 11 is the steel ring; 12 is the support plate; 121 is the slide groove; 20 is the centering adjustment mechanism; 21 is the first screw; 22 is the pressure head; 23 is the first rotating block; 30 is the spacing adjustment mechanism; 31 is the fixing block; 32 is the second screw; 33 is the slider; 331 is the limiting groove; 34 is the guide rod; 35 is the second rotating block; 40 is the connecting assembly; 41 is the protruding plate; and 42 is the connecting bolt. Detailed Implementation
[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0032] Example 1:
[0033] Please see the appendix Figure 1 -Appendix Figure 4 This invention provides a rapid alignment device for pipe assembly, comprising:
[0034] Support assembly 10 includes two steel rings 11 connected to each other by a plurality of support plates 12;
[0035] In this embodiment, the support component 10 serves as the support part of the device, and is installed on the outside of the pipe during pipe assembly.
[0036] The centering adjustment mechanism 20 is provided in two sets. The two sets of centering adjustment mechanisms 20 are arranged side by side along the axial direction of the support assembly 10. The centering adjustment mechanism 20 includes several first screws 21. The axis of the first screws 21 is arranged radially along the steel ring 11. Two first screws 21 are threadedly connected to each support plate 12.
[0037] In this embodiment, the first screws 21 in the centering adjustment mechanism 20 are all threadedly connected to the support plate 12. By rotating the first screws 21 respectively, the first screws 21 are engaged with the threaded holes of the support plate 12, so that the inner end of the steel ring 11 is close to the pipe, thereby achieving the clamping of the middle pipe.
[0038] The spacing adjustment mechanism 30 has two sets, and the two sets of spacing adjustment mechanisms 30 are symmetrically arranged around the center of the steel ring 11. The spacing adjustment mechanism 30 includes a fixing block 31, which is fixedly connected to one side of the support plate 12. A second screw 32 is rotatably connected to one side of the support plate 12. The second screw 32 is threadedly connected to a slider 33, which is slidably connected to the middle of the support plate 12. A first screw 21 is threadedly connected to the middle of the slider 33.
[0039] In this embodiment, the spacing adjustment mechanism 30 enables the following steps during the alignment of two pipes: First, one pipe is secured by one set of alignment adjustment mechanisms 20. Then, the first screw 21 mounted on the spacing adjustment mechanism 30 in the other set of alignment adjustment mechanisms 20 is pressed against the outside of the pipe to achieve initial fixation of the other pipe. Subsequently, the rotation of the second screw 32 in the spacing adjustment mechanism 30 causes the slider 33 to slide, thereby adjusting the distance between the second screw 32 in the middle and the adjacent second screw 32. This adjusts the distance between the two pipes at their closest ends. After adjustment to a suitable distance, the remaining first screws 21 that are not pressed against the outside of the pipe are pressed against the outside of the pipe. Then, fine-tuning is performed using multiple first screws 21 to achieve alignment of the two pipes.
[0040] In one specific embodiment, the first screw 21 is rotatably connected to a pressure head 22 at one end located inside the steel ring 11;
[0041] In this embodiment, the pressure head 22 is set to contact the pipe, and the pressure head 22 is rotatably connected to the first screw 21, so that the outer wall of the pipe will not be worn during the tightening process of the first screw 21.
[0042] In one specific embodiment, the first screw 21 is fixedly connected to the first screw block 23 at the outer end of the steel ring 11;
[0043] In this embodiment, the first screw 21 can be easily rotated by the first rotating block 23.
[0044] In one specific embodiment, a sliding groove 121 is provided on one side of the support plate 12, and a limiting groove 331 is provided on both sides of the slider 33. The slider 33 is slidably connected to the inner wall of the sliding groove 121 through the limiting groove 331.
[0045] In this embodiment, the sliding groove 121, the slider 33, and the limiting groove 331 are configured to guide the sliding direction of the slider 33.
[0046] Furthermore, in another embodiment, a guide rod 34 is fixedly connected to one side of the fixing block 31, and the slider 33 is slidably connected to the outer wall of the guide rod 34;
[0047] In this embodiment, the guide element may also be a guide rod 34.
[0048] In one specific embodiment, a second screw block 35 is fixedly connected to one end of the second screw 32;
[0049] In this embodiment, the second screw 32 can be easily rotated by the second rotating block 35.
[0050] Example 2:
[0051] This embodiment is basically the same as the above embodiment, except that:
[0052] Reference Figure 5 The support component 10 is divided into two semicircular rings, and the two semicircular rings are connected by the connecting component 40.
[0053] Specifically, the connecting component 40 includes a convex plate 41. Both ends of the semicircular ring are provided with convex plates 41. The two convex plates 41 at one end are rotatably connected by a shaft pin, and the two convex plates 41 at the other end are fixed together by connecting bolts 42.
[0054] In this embodiment, when performing pipe alignment, the connecting bolt 42 can be removed to open the two semicircular rings through the shaft pin. Then, the pipe connection is placed between the two semicircular rings, and the connecting bolt 42 is screwed in to assemble the support component 10. The device can be easily disassembled after welding and reused.
[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A method for rapid alignment during pipe assembly, characterized in that, This is achieved using a rapid alignment device for pipe assembly, including the following steps: S1. By fitting the support component (10) onto the outside of the pipe to be connected; S2. One pipe is secured by multiple first screws (21) in one set of centering adjustment mechanism (20), and then the first screw (21) in another set of centering adjustment mechanism (20) installed on the spacing adjustment mechanism (30) is secured to the outside of the pipe to achieve the initial fixation of the other pipe. S3. By rotating the second screw (32) in the spacing adjustment mechanism (30), the slider (33) is made to cooperate with it and slide, thereby driving the second screw (32) in the middle to adjust the spacing between the second screw (32) and the adjacent second screw (32), thereby realizing the adjustment of the welding end spacing of the two pipes. S4. After adjusting to the appropriate position, the remaining untightened first screws (21) are pressed against the outside of the pipe, and then fine-tuned by multiple first screws (21) to achieve the alignment of the two pipes, and then welded on them. The rapid alignment device for pipeline assembly includes: A support assembly (10) comprising two steel rings (11) connected to each other by a plurality of support plates (12); The centering adjustment mechanism (20) is provided in two sets, and the two sets of centering adjustment mechanisms (20) are arranged side by side along the axial direction of the support assembly (10). The centering adjustment mechanism (20) includes a plurality of first screws (21), the axis of the first screws (21) is arranged radially along the steel ring (11), and two first screws (21) are threadedly connected to each support plate (12). The spacing adjustment mechanism (30) is provided in two sets, and the two sets of spacing adjustment mechanisms (30) are symmetrically arranged along the center of the steel ring (11). The spacing adjustment mechanism (30) includes a fixing block (31), which is fixedly connected to one side of the support plate (12). A second screw (32) is rotatably connected to one side of the support plate (12). The second screw (32) is threadedly connected to a slider (33). The slider (33) is slidably connected to the middle part of the support plate (12). A first screw (21) is threadedly connected to the middle part of the slider (33).
2. The rapid alignment method for pipe assembly according to claim 1, characterized in that, The first screw (21) is rotatably connected to a pressure head (22) at one end inside the steel ring (11).
3. The rapid alignment method for pipe assembly according to claim 1, characterized in that, The first screw (21) is fixedly connected to the first screw block (23) at one end outside the steel ring (11).
4. The rapid alignment method for pipe assembly according to claim 1, characterized in that, The support plate (12) has a slide groove (121) on one side, and the slider (33) has a limit groove (331) on both sides. The slider (33) is slidably connected to the inner wall of the slide groove (121) through the limit groove (331).
5. The rapid alignment method for pipe assembly according to claim 1, characterized in that, A guide rod (34) is fixedly connected to one side of the fixed block (31), and the slider (33) is slidably connected to the outer wall of the guide rod (34).
6. The rapid alignment method for pipe assembly according to claim 1, characterized in that, The second screw (32) is fixedly connected to a second screw block (35) at one end.
7. The rapid alignment method for pipe assembly according to claim 1, characterized in that, The support component (10) is divided into two semicircular rings, and the two semicircular rings are connected by a connecting component (40).
8. A rapid alignment method for pipe assembly according to claim 7, characterized in that, The connecting assembly (40) includes a convex plate (41). Both ends of the semi-circular ring are provided with convex plates (41). The two convex plates (41) at one end are rotatably connected by a shaft pin, and the two convex plates (41) at the other end are fixed together by a connecting bolt (42).
Citation Information
Patent Citations
Rapid centering device for pipeline assembly
CN219986714U