Pipeline alignment tool
By using the pressure plate and base plate moving mechanism of the pipe alignment tool, and by using a retaining ring to fit on the pipe, high-precision coaxial alignment without damage is achieved, which solves the damage and accuracy problems during spot welding alignment and improves the stability and accuracy of welding.
Patent Information
- Application Number
- CN202422757856.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-12
AI Technical Summary
In pipeline construction, spot welding can easily damage the pipes and result in poor alignment accuracy when aligning the bevels of two pipes.
A pipe alignment tool is used, which uses a moving mechanism that connects a pressure plate and a base plate to gradually press the pipe with a retaining ring to achieve coaxial alignment, avoiding deformation damage caused by spot welding. The alignment accuracy is improved by using a retaining ring made of flexible material or an adjustable rope retaining ring.
It achieves high-precision coaxial alignment without damage, avoids pipe damage caused by spot welding, and improves the stability and accuracy after welding.
Smart Images
Figure CN223544505U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pipeline construction technology, specifically to a pipeline alignment tool. Background Technology
[0002] During pipeline construction, it is often necessary to weld two pipes coaxially into one. To ensure the welding effect, a bevel is usually made at the end of the two pipes that are close to each other. During welding, the bevels of the two pipes are made coaxially and aligned before welding to ensure the quality of the bevel assembly. Due to manufacturing deviations, the pipes may be bent, causing the two pipes to be non-coaxial and the bevels to not fit completely, resulting in local misalignment. Therefore, it is necessary to correct the bevels.
[0003] The traditional method involves spot welding on a single pipe, causing localized deformation so that the bevels of two pipes can fit together perfectly coaxially. However, this method is prone to damaging the pipe and has poor alignment accuracy. Utility Model Content
[0004] In view of this, this application provides a pipe alignment tool to solve the problem that when aligning the bevels of two pipes by spot welding, it is easy to damage the pipes and the alignment accuracy is poor.
[0005] This application provides a pipe alignment tool, including:
[0006] Pressure plate, adapted to press against the side walls of the first pipe and the second pipe;
[0007] A substrate is provided with at least two retaining rings. The first retaining ring is adapted to be fitted onto a first pipe, and the second retaining ring is adapted to be fitted onto a second pipe. The substrate is connected to the pressure plate via a moving mechanism. The moving mechanism is adapted to drive the substrate to move away from the pressure plate, so that the inner wall of the first retaining ring abuts against the side of the first pipe away from the pressure plate, and the inner wall of the second retaining ring abuts against the side of the second pipe away from the pressure plate.
[0008] Optionally, the moving mechanism includes:
[0009] A lead screw is rotatably connected to the pressure plate and is axially limited by the lead screw.
[0010] A lead screw and nut are disposed on the base plate, and the lead screw and the lead screw and nut are threadedly engaged.
[0011] Optionally, the moving mechanism further includes:
[0012] A baffle is provided with a rotating hole, and a rotating groove is provided on the pressure plate. The baffle is adapted to cover the rotating groove.
[0013] A stop block is disposed on the side wall of the lead screw, the lead screw passes through the rotating hole, and the stop block is disposed in the rotating groove and adapted to abut against the side of the baffle near the rotating groove.
[0014] Optionally, a pressure groove is provided on the side of the pressure plate away from the substrate, and the groove wall is adapted to abut against the side walls of the first pipe and the second pipe.
[0015] Optionally, the pressure groove is a trapezoidal groove, and the sidewall of the trapezoidal groove is adapted to abut against the sidewalls of the first pipe and the second pipe.
[0016] Optionally, the retaining ring is made of a flexible material.
[0017] Optionally, the substrate is provided with a first through hole and a second through hole, a first end of a rope is connected to the substrate, a second end of the rope passes through the first through hole to form a first retaining ring, and a second end of the rope passes through the second through hole and is connected to the substrate to form a second retaining ring.
[0018] Optionally, it also includes:
[0019] The first snap-fit component has a third through hole on the base plate. The first end of the rope passes through the third through hole and connects to the first snap-fit component. The rope between the third through hole and the first through hole forms the first snap-fit ring.
[0020] Optionally, it also includes:
[0021] The second snap-fit component has a fourth through hole on the base plate. The second end of the rope passes through the fourth through hole and connects to the second snap-fit component. The rope between the fourth through hole and the second through hole forms the second snap-fit ring.
[0022] Optionally, the moving mechanism further includes:
[0023] The handle is attached to the lead screw.
[0024] In the embodiments of this application, a first retaining ring is fitted onto the first pipe, and a second retaining ring is fitted onto the second pipe. Then, the bevels of the first and second pipes are pre-aligned. The side of the pressure plate furthest from the substrate is pressed against the sidewalls of the first and second pipes, respectively. Subsequently, a moving device is used to drive the substrate away from the pressure plate. As the substrate moves away from the pressure plate, the two retaining rings gradually press the first and second pipes onto the pressure plate, respectively. Under the clamping action of the retaining rings, the first and second pipes are kept coaxial, thereby maintaining the coaxial alignment of their bevels. Compared to spot welding the first or second pipe to deform it so that the bevels of the first or second pipe can be aligned coaxially, using this pipe alignment tool will not damage the first and second pipes, and the alignment accuracy is better. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this application, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 This is an isometric view of a pipe alignment tool according to an embodiment of this application;
[0027] Figure 2 This is a schematic diagram of the interface of a pipe alignment tool according to an embodiment of this application;
[0028] Figure 3 for Figure 2 A magnified view of part A in the diagram;
[0029] Figure 4 This is a schematic diagram of the base plate structure of a pipe alignment tool according to an embodiment of this application;
[0030] Figure 5 This is a schematic diagram of the lead screw structure of a pipe alignment tool according to an embodiment of this application;
[0031] Figure 6 This is a schematic diagram of the pressure plate structure of a pipe alignment tool according to an embodiment of this application.
[0032] Figure 7 This is a schematic diagram of the baffle structure of a pipe alignment tool according to an embodiment of this application.
[0033] Explanation of reference numerals in the attached figures:
[0034] 1. Pressure plate; 2. Base plate; 3. Clamping ring; 4. First pipe; 5. Second pipe; 6. Lead screw; 7. Lead screw nut; 8. Baffle; 9. Stop block; 10. Rope; 11. Handle; 12. Rotary hole; 13. Rotary groove; 14. First clamping component; 15. Second clamping component; 16. Pressure groove. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0036] The following is combined with Figures 1 to 7 This describes an embodiment of the present application.
[0037] According to embodiments of this application, a pipe alignment tool is provided, such as... Figure 1 and Figure 2 As shown, it includes: a pressure plate 1 and a substrate 2. At least two retaining rings 3 are connected and disposed on the substrate 2. The substrate 2 is connected to the pressure plate 1 through a movable structure, which enables the movable structure to drive the substrate 2 to move away from or towards the pressure plate 1.
[0038] Before welding the first pipe 4 and the second pipe 5, bevels are pre-machined on the welding ends of the first pipe 4 and the second pipe 5. Two retaining rings 3 are arranged parallel to each other. The first retaining ring 3 is fitted onto the first pipe 4, and the second retaining ring 3 is fitted onto the second pipe 5. Then, the bevels of the first pipe 4 and the second pipe 5 are pre-aligned, that is, the bevels of the first pipe 4 and the second pipe 5 are aligned coaxially. The side of the pressure plate 1 away from the base plate 2 is pressed against the sidewalls of the first pipe 4 and the second pipe 5 respectively. Then, the base plate 2 is moved away from the pressure plate 1 using a moving device. As the base plate 2 moves away from the pressure plate 1, the two retaining rings 3 gradually press the first pipe 4 and the second pipe 5 onto the pressure plate 1 respectively. Under the clamping action of the retaining rings 3, the first pipe 4 and the second pipe 5 are kept coaxial, thus maintaining the coaxial alignment of the bevels of the first pipe 4 and the second pipe 5. At this point, the bevels of the first pipe 4 and the second pipe 5 can be welded. This configuration, compared to spot welding the first pipe 4 or the second pipe 5 to deform them so that their bevels can be aligned coaxially, avoids damage to the first pipe 4 and the second pipe 5 when using this pipe alignment tool for alignment, resulting in better alignment accuracy. Furthermore, it can fix the first pipe 4 and the second pipe 5 after alignment, preventing misalignment during welding.
[0039] It is worth noting that after welding is completed, the substrate 2 can be moved closer to the pressure plate 1 using a moving device to loosen the retaining ring 3. To maintain a better welding effect, you can wait for a period of time after welding before loosening the retaining ring 3.
[0040] In one embodiment, such as Figure 2 As shown, the moving mechanism includes a lead screw 6 and a lead screw nut 7. The first end of the lead screw 6 is rotatably connected to the pressure plate 1 and is axially limited by the pressure plate 1, allowing the lead screw 6 to rotate relative to the pressure plate 1, while the pressure plate 1 axially limits the lead screw 6, preventing it from moving axially relative to the pressure plate 1. A through hole is provided on the base plate 2, and the lead screw nut 7 is fixedly connected to the base plate 2, coaxial with the through hole. The second end of the lead screw 6 passes through the through hole and then through the lead screw nut 7, creating a threaded engagement between the lead screw 6 and the lead screw nut 7. Rotating the lead screw 6 causes the base plate 2 to move closer to or closer to the pressure plate 1 due to the transmission principle of the lead screw 6.
[0041] After pre-aligning the bevels of the first pipe 4 and the second pipe 5, rotating the screw 6 causes the base plate 2 to move away from the pressure plate 1. As the base plate 2 moves away from the pressure plate 1, the two retaining rings 3 gradually press the first pipe 4 and the second pipe 5 onto the pressure plate 1 respectively. Under the clamping action of the retaining rings 3, the first pipe 4 and the second pipe 5 are kept coaxial, thereby keeping the bevels of the first pipe 4 and the second pipe 5 coaxially aligned. At this point, the bevels of the first pipe 4 and the second pipe 5 can be welded, making the operation more convenient.
[0042] Furthermore, regarding the axial limiting fit between the pressure plate 1 and the lead screw 6, as follows: Figures 2 to 7 As shown, the moving mechanism also includes a baffle 8 and a stop block 9. The baffle 8 has a rotating hole 12, and the pressure plate 1 has a rotating groove 13. The stop block 9 is located on the side wall of the first end of the lead screw 6. The baffle 8 can be two separate semicircles, each with a semicircular hole. Combining the two parts forms the baffle 8, where the two semicircular holes form the rotating hole 12. The stop block 9 is placed in the rotating groove 13, and the two semicircles are then fixed to the pressure plate 1, so that the two semicircles combine to form the baffle 8, sealing the rotating groove 13. The semicircular holes on the two semicircles tighten the lead screw 6 from both sides, thus forming the rotating hole 12, and the lead screw 6 is rotatably connected in the rotating hole 12. With this configuration, the lead screw 6 can rotate in the rotating hole 12 relative to the pressure plate 1, while the baffle 8 restricts the stop block 9 from leaving the rotating groove 13, thus restricting the axial movement of the lead screw 6 relative to the pressure plate 1, thereby achieving an axial limiting fit between the pressure plate 1 and the lead screw 6.
[0043] The baffle 8 can be fixedly connected to the pressure plate 1 using fixing bolts.
[0044] In one embodiment, such as Figure 6As shown, a pressure groove 16 is formed on the side of the pressure plate 1 away from the substrate 2. When the substrate 2 is moved away from the pressure plate 1 using a moving device, as the substrate 2 moves away from the pressure plate 1, the two retaining rings 3 gradually press the first pipe 4 and the second pipe 5 onto the pressure plate 1 respectively. At this time, the groove wall of the pressure groove 16 abuts against the side walls of the first pipe 4 and the second pipe 5, so that the side walls of the first pipe 4 and the second pipe 5 are locked in the pressure groove 16. Under the limiting effect of the pressure groove 16, the alignment accuracy and stability of the first pipe 4 and the second pipe 5 are better.
[0045] In a further embodiment, such as Figure 6 As shown, the pressure groove 16 is a trapezoidal groove. When the base plate 2 is moved away from the pressure plate 1 using the moving device, as the base plate 2 moves away from the pressure plate 1, the two retaining rings 3 gradually press the first pipe 4 and the second pipe 5 onto the pressure plate 1 respectively. At this time, the sidewalls of the trapezoidal groove abut against the sidewalls of the first pipe 4 and the second pipe 5, that is, the two sidewalls of the trapezoidal groove abut against the sidewalls of the first pipe 4 and the second pipe 5 respectively. This causes the first pipe 4 and the second pipe 5 to form an inward tightening trend, resulting in better alignment accuracy and stability of the first pipe 4 and the second pipe 5.
[0046] It is worth noting that the pressure groove 16 can also be a V-shaped groove, which can also make the first pipe 4 and the second pipe 5 tend to tighten inward, making the alignment of the first pipe 4 and the second pipe 5 more accurate and stable.
[0047] In some embodiments, the retaining rings 3 are made of flexible material. When the substrate 2 is moved away from the pressure plate 1 using a moving device, as the substrate 2 moves away from the pressure plate 1, the two retaining rings 3 gradually press the first pipe 4 and the second pipe 5 onto the pressure plate 1 respectively. At this time, because the retaining rings 3 are made of flexible material, the first retaining ring 3 can deform to fit more closely with the first pipe 4, and the second retaining ring 3 can deform to fit more closely with the second pipe 5, thereby improving the inward tightening effect on the first pipe 4 and the second pipe 5, resulting in better accuracy and stability of the alignment of the first pipe 4 and the second pipe 5.
[0048] In a further embodiment, such as Figures 1 to 4 As shown, a first through hole and a second through hole are provided on the substrate 2. The first end of the rope 10 is connected to the substrate 2, and the second end of the rope 10 is passed through the first through hole. At this point, the rope 10 between the location where the substrate 2 connects to the first end of the rope 10 and the location of the first through hole forms a first retaining loop 3. The second end of the rope 10 passes through the first through hole and then through the second through hole, finally connecting to the substrate 2. At this point, the rope 10 between the location where the substrate 2 connects to the second end of the rope 10 and the location of the second through hole forms a second retaining loop 3. The line connecting the location where the substrate 2 connects to the second end of the rope 10 and the location where the substrate 2 connects to the first end of the rope 10 is parallel to the line connecting the first through hole and the second through hole.
[0049] With this configuration, since the rope 10 forming the first retaining ring 3 and the rope 10 forming the second retaining ring 3 are the same rope 10, as the base plate 2 moves away from the pressure plate 1 and the two retaining rings 3 gradually tighten, the circumference of the two retaining rings 3 can be dynamically adjusted, so that the tightening force of the first retaining ring 3 on the first pipe 4 and the tightening force of the second retaining ring 3 on the second pipe 5 are the same, resulting in better accuracy and stability of the alignment of the first pipe 4 and the second pipe 5.
[0050] In a further embodiment, such as Figure 1 and Figure 4 As shown, the pipe alignment tool also includes a first locking member 14. A third through hole is provided on the base plate 2. After the first end of the rope 10 is passed through the third through hole, the first locking member 14 is connected to the first end of the rope 10. At this time, the first locking member 14 cannot pass through the third through hole, thus connecting the first end of the rope 10 to the base plate 2. At this time, the rope 10 between the third through hole and the first through hole forms a first retaining ring 3. When it is necessary to disassemble the rope 10, the first locking member 14 can be removed from the first end of the rope 10. At this time, the first end of the rope 10 can be pulled out from the third through hole to complete the disassembly of the rope 10, which facilitates the disassembly of the rope 10.
[0051] In another, further embodiment, such as Figure 1 and Figure 4 As shown, the pipe alignment tool also includes a second locking member 15. A fourth through hole is provided on the base plate 2. After the second end of the rope 10 is passed through the fourth through hole, the second locking member 15 is connected to the second end of the rope 10. At this time, the second locking member 15 cannot pass through the fourth through hole, thus connecting the second end of the rope 10 to the base plate 2. At this time, the rope 10 between the fourth through hole and the second through hole forms a second retaining ring 3. When it is necessary to disassemble the rope 10, the second locking member 15 can be removed from the second end of the rope 10. At this time, the second end of the rope 10 can be pulled out from the fourth through hole to complete the disassembly of the rope 10, which is convenient for disassembling the rope 10.
[0052] The line connecting the fourth and third perforations is parallel to the line connecting the first and second perforations. Rope 10 can be a stainless steel wire rope with a diameter of 5 mm to 8 mm, and its length can be adjusted as needed. The first clamping piece 14 and the second clamping piece 15 can be wire rope locks. The wire rope locks are standard parts and will not be described further.
[0053] In some embodiments, such as Figure 1 and Figure 2As shown, the moving mechanism also includes a handle 11. The handle 11 is connected to the end of the lead screw 6 away from the pressure plate 1, making it convenient for the operator to hold the handle 11 and rotate the lead screw 6. The handle 11 can be made of round steel. For the connection between the handle 11 and the lead screw 6, a dovetail can be provided on the handle 11 for mating with the end of the lead screw 6 away from the pressure plate 1.
[0054] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by this application.
Claims
1. A pipe alignment tool, characterized in that, include: Pressure plate (1) is adapted to press against the side walls of the first pipe (4) and the second pipe (5); The substrate (2) is provided with at least two retaining rings (3). The first retaining ring (3) is adapted to be fitted onto the first pipe (4), and the second retaining ring (3) is adapted to be fitted onto the second pipe (5). The substrate (2) is connected to the pressure plate (1) through a moving mechanism. The moving mechanism is adapted to drive the substrate (2) to move away from the pressure plate (1) so that the inner wall of the first retaining ring (3) abuts against the side of the first pipe (4) away from the pressure plate (1), and the inner wall of the second retaining ring (3) abuts against the side of the second pipe (5) away from the pressure plate (1).
2. The pipe alignment tool according to claim 1, characterized in that, The moving mechanism includes: The lead screw (6) is rotatably connected to the pressure plate (1) and is axially limited in fit with the lead screw (6); A lead screw nut (7) is disposed on the base plate (2), and the lead screw (6) is threadedly engaged with the lead screw nut (7).
3. The pipe alignment tool according to claim 2, characterized in that, The mobile mechanism also includes: The baffle (8) is provided with a rotating hole (12), and the pressure plate (1) is provided with a rotating groove (13). The baffle (8) is adapted to cover the rotating groove (13). A stop (9) is provided on the side wall of the lead screw (6), which passes through the rotating hole (12). The stop (9) is provided in the rotating groove (13) and is adapted to abut against the side of the baffle (8) near the rotating groove (13).
4. The pipe alignment tool according to claim 1, characterized in that, The pressure plate (1) is provided with a pressure groove (16) on the side away from the base plate (2), and the groove wall of the pressure groove (16) is adapted to abut against the side wall of the first pipe (4) and the second pipe (5).
5. The pipe alignment tool according to claim 4, characterized in that, The pressure groove (16) is a trapezoidal groove, and the sidewall of the trapezoidal groove is adapted to abut against the sidewall of the first pipe (4) and the second pipe (5).
6. The pipe alignment tool according to claim 1, characterized in that, The retaining ring (3) is made of flexible material.
7. The pipe alignment tool according to claim 6, characterized in that, The base plate (2) is provided with a first through hole and a second through hole. The first end of the rope (10) is connected to the base plate (2). The second end of the rope (10) passes through the first through hole to form the first retaining ring (3). The second end of the rope (10) passes through the second through hole and is connected to the base plate (2) to form the second retaining ring (3).
8. The pipe alignment tool according to claim 7, characterized in that, Also includes: The first snap-fit member (14) has a third through hole on the base plate (2). The first end of the rope (10) passes through the third through hole and is connected to the first snap-fit member (14). The rope (10) between the third through hole and the first through hole forms the first snap-fit ring (3).
9. The pipe alignment tool according to claim 7, characterized in that, Also includes: The second snap fastener (15) is provided with a fourth through hole on the base plate (2). The second end of the rope (10) passes through the fourth through hole and is connected to the second snap fastener (15). The rope (10) between the fourth through hole and the second through hole forms the second snap ring (3).
10. The pipe alignment tool according to claim 2, characterized in that, The mobile mechanism also includes: The handle (11) is connected to the lead screw (6).