Large-diameter steel pipe assembling and aligning device
By using a servo motor-driven bidirectional lead screw and gear set device, precise alignment and angle adjustment of large-diameter steel pipes are achieved, solving the problem that manual operation in the existing technology cannot guarantee the alignment of steel pipes, and improving the accuracy and efficiency of pipeline installation.
Patent Information
- Application Number
- CN202520453359.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-16
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-16
AI Technical Summary
The existing method of assembling steel pipes relies on manual operation, which makes it difficult to ensure that the center lines of the two steel pipes are completely aligned, resulting in misalignment or eccentricity, which affects the quality and efficiency of the pipeline.
The device includes a base plate, a fixing mechanism, an adjusting mechanism, a servo motor, and a gear set. The servo motor drives the bidirectional lead screw and gear set to achieve precise alignment and angle adjustment of the steel pipe, ensuring the accuracy and flexibility of pipe connection.
It improves the accuracy and efficiency of steel pipe alignment, reduces the labor intensity of manual adjustment, meets the installation requirements of different angles, and ensures pipeline quality.
Smart Images

Figure CN223917125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe assembly technology, specifically a large-diameter steel pipe assembly and alignment device. Background Technology
[0002] Pipe assembly refers to the process of connecting, fixing, and welding two or more steel pipes according to design requirements during pipeline installation. Pipe assembly is a key step in pipeline construction, directly affecting the quality, sealing, and service life of the pipeline.
[0003] The existing method of assembling steel pipes involves manual welding by workers. Since steel pipe assembly requires ensuring that the center lines of the two steel pipes are completely aligned to avoid misalignment or eccentricity, manual operation cannot guarantee perfect alignment, resulting in large errors, excessive gaps, and affecting the quality of subsequent pipelines. Furthermore, if different angles are required between the two sets of pipes, manual operation is too complicated and inefficient.
[0004] Therefore, those skilled in the art have provided a large-diameter steel pipe assembly and alignment device to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to provide a large-diameter steel pipe assembly and alignment device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A large-diameter steel pipe assembly and alignment device includes a base plate, a fixing mechanism, and an adjustment mechanism. A bidirectional lead screw is rotatably connected inside the base plate. A first servo motor is fixedly connected to one side wall of the base plate. The power output end of the first servo motor passes through the base plate and is fixedly connected to the bidirectional lead screw. A limit rod is fixedly connected to the other end of the upper surface of the base plate. The limit rod and the left and right ends of the bidirectional lead screw are threadedly connected to movable sleeves, and the movable sleeves are threadedly connected to the bidirectional lead screw and slidably connected to the limit rod. A support platform is fixedly connected to the upper end of each of the two sets of adjacent movable sleeves. A fixing mechanism is provided on the upper end of each support platform, and an adjustment mechanism is provided on the upper end of each fixing mechanism.
[0008] As a further embodiment of this utility model: both the left and right ends of the upper surface of the support platform are fixedly connected to fixed seats, and a pipe fixing sleeve is provided between the two sets of fixed seats. The fixed seats are rotatably connected to the pipe fixing sleeve through adjusting rods, and the adjusting rods are fixedly connected to the pipe fixing sleeves. An adjusting mechanism is provided at the upper end of the adjusting rods.
[0009] As a further improvement of this utility model: the left and right side walls of the pipe fixing sleeve are provided with slots, the top of the pipe fixing sleeve is threaded with a threaded rod, and the bottom of the threaded rod is fixedly connected with a pressure plate. The pressure plate is inverted V-shaped and both the left and right ends are located in the slots.
[0010] As a further embodiment of this utility model: a pair of symmetrically arranged brackets are fixedly connected to the upper end of the base plate away from the limiting rod. A rotating rod is rotatably connected to the center of the upper end of the bracket near the first servo motor, and a locking rod is rotatably connected to the center of the upper end of the bracket away from the first servo motor. The locking rod and the rotating rod are slidably engaged.
[0011] As a further embodiment of this utility model: a second servo motor is fixedly connected to the outer wall of the bracket, and the power output end of the second servo motor passes through the bracket and is fixedly connected to the rotating rod. A transmission rod is fixedly connected to the upper end of each adjustment rod. A second gear set and a first gear set are fixedly connected to the connection point of the two sets of transmission rods with the connecting point of the clamp and the rotating rod, respectively.
[0012] As a further embodiment of this utility model: both the first gear set and the second gear set include a first bevel gear and a second bevel gear. The first gear set is fixedly connected to the transmission rod, and the second bevel gear is fixedly connected to the adjacent locking rod and rotating rod respectively. The first bevel gear is perpendicular to the second bevel gear and meshes with it.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] Because of the fixed mechanism, the steel pipe can be precisely fixed in the pipe fixing sleeve through the cooperation of the threaded rod and the clamping plate, ensuring the accuracy of pipe alignment and avoiding misalignment or uneven connection. By starting the first servo motor and using the bidirectional screw to drive the moving sleeve to move synchronously, the pipe spacing can be automatically adjusted, reducing the labor intensity of manual pipe adjustment. Operators do not need to make complicated adjustments manually, improving work comfort and efficiency.
[0015] Because it is equipped with an adjustment mechanism, the two sets of pipes can be precisely connected at different angles through the cooperation of the rotating rod, the locking rod and the gear set, so as to meet the installation requirements of different pipes. The gear set realizes synchronous and opposite rotation, ensuring that the two sets of transmission rods rotate at the same time, thereby ensuring the synchronous movement of the pipe fixing sleeve during the angle adjustment process, flexibly adjusting the angle and position between the two sets of pipes, and avoiding installation errors caused by asynchrony. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a large-diameter steel pipe assembly alignment device.
[0017] Figure 2This is a schematic diagram of the pipe fixing sleeve in a large-diameter steel pipe assembly alignment device.
[0018] Figure 3 This is a top view schematic diagram of an alignment device for large-diameter steel pipes.
[0019] Figure 4 This is an enlarged structural diagram of point A in a large-diameter steel pipe assembly alignment device.
[0020] In the diagram: 1. Base plate; 2. First servo motor; 3. Two-way lead screw; 4. Moving sleeve; 5. Support platform; 6. Fixed seat; 7. Adjusting rod; 8. Pipe fixing sleeve; 9. Threaded rod; 10. Pressure plate; 11. Empty slot; 12. Transmission rod; 13. First gear set; 14. Rotating rod; 15. Bracket; 16. Second servo motor; 17. Clamping rod; 18. Second gear set. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0022] Reference Figure 1-4 This embodiment provides a large-diameter steel pipe assembly and alignment device, including a base plate 1, a first servo motor 2, a bidirectional lead screw 3, a movable sleeve 4, a support platform 5, a fixed seat 6, an adjusting rod 7, a pipe fixing sleeve 8, a threaded rod 9, a clamping plate 10, a slot 11, a transmission rod 12, a first gear set 13, a rotating rod 14, a bracket 15, a second servo motor 16, a clamping rod 17, and a second gear set 18. The bidirectional lead screw 3 is rotatably connected inside the base plate 1. The first servo motor 2 is fixedly connected to one side wall of the base plate 1. The power output end of the first servo motor 2 passes through the base plate 1 and is fixedly connected to the bidirectional lead screw 3. A limit rod is fixedly connected to the other end of the upper surface of the base plate 1. The limit rod and the left and right ends of the bidirectional lead screw 3 are threadedly connected to the movable sleeve 4, and the movable sleeve 4 is threadedly connected to the bidirectional lead screw 3 and slidably connected to the limit rod. The upper ends of two adjacent movable sleeves 4 are fixedly connected to the support platform 5. The upper end of the support platform 5 is provided with a fixing mechanism, and the upper end of the fixing mechanism is provided with an adjusting mechanism. Example
[0023] Reference Figure 1 , 23. This embodiment is based on the previous embodiment, but differs from the previous embodiment in that the upper end face of the support platform 5 is fixedly connected to the left and right ends of the support platform 5, and a pipe fixing sleeve 8 is provided between the two sets of fixing seats 6. The fixing seats 6 are rotatably connected to the pipe fixing sleeve 8 through the adjusting rod 7. The adjusting rod 7 is fixedly connected to the pipe fixing sleeve 8. The upper end of the adjusting rod 7 is provided with an adjusting mechanism. The left and right end side walls of the pipe fixing sleeve 8 are provided with slots 11. The top end of the pipe fixing sleeve 8 is threadedly connected to the threaded rod 9. The bottom end of the threaded rod 9 is fixedly connected to the pressing plate 10. The pressing plate 10 is inverted V-shaped and both the left and right ends are located in the slots 11.
[0024] The steel pipes are placed uniformly inside the pipe fixing sleeve 8, and the upper threaded rod 9 is rotated to drive the bottom clamping plate 10 to press down continuously through the threaded connection with the pipe fixing sleeve 8 until it fits against the steel pipe. Then the first servo motor 2 is started, and the first servo motor 2 drives the bidirectional lead screw 3 to rotate, so that the bidirectional lead screw 3 drives the moving sleeves 4 with threaded connections at both ends to move synchronously to the center position, thereby driving the upper end to achieve pipe alignment and adjust the distance between the two sets of pipes. Example
[0025] Reference Figure 1 , 3 4. This embodiment is based on the previous embodiment, but differs in that a pair of symmetrically arranged brackets 15 are fixedly connected to the upper end of the base plate 1 away from the limiting rod. A rotating rod 14 is rotatably connected to the center of the upper end of the bracket 15 near the first servo motor 2, and a locking rod 17 is rotatably connected to the center of the upper end of the bracket 15 away from the first servo motor 2. The locking rod 17 and the rotating rod 14 are slidably engaged. A second servo motor 16 is fixedly connected to the outer wall of the bracket 15, and the power output end of the second servo motor 16 is... After passing through the bracket 15, it is fixedly connected to the rotating rod 14. The upper end of the adjusting rod 7 is fixedly connected to the transmission rod 12. The two sets of transmission rods 12 are respectively fixedly connected to the connection between the clamp rod 17 and the rotating rod 14 with the second gear set 18 and the first gear set 13. The first gear set 13 and the second gear set 18 each include a first bevel gear and a second bevel gear. The first gear set 13 is fixedly connected to the transmission rod 12. The second bevel gear is fixedly connected to the adjacent clamp rod 17 and the rotating rod 14. The first bevel gear is perpendicular to the second bevel gear and meshes with it.
[0026] The second servo motor 16 is started, which drives the rotating rod 14 to rotate. The rotating rod 14 drives the locking rod 17 to rotate synchronously. The rotating rod 14 and the locking rod 17 drive the two sets of transmission rods 12 to rotate synchronously through the first gear set 13 and the second gear set 18 at the upper end. According to the rotation reversal characteristics of the bevel gear, the two sets of transmission rods 12 rotate in opposite directions, which drives the pipe fixing sleeve 8 to move synchronously and adjust the angle, so that the two sets of pipes can be connected at different positions and angles.
[0027] It should be added that when the bidirectional lead screw 3 drives the moving sleeve 4 to move, the locking rod 17 and the rotating rod 14 will retract according to the continuous movement of the support platform 5. Furthermore, the outer wall of the locking rod 17 is provided with multiple sets of locking blocks, and the locking blocks and the locking rod 17 are slidably engaged with the rotating rod 14, so that the synchronous rotation will not be affected during rotation.
[0028] It should be added that the first gear set 13 and the second gear set 18 are both existing common pairs of meshing bevel gears. Thus, when the second servo motor 16 is started, the two sets of bevel gears will rotate synchronously to achieve the angle adjustment of the pipe fixing sleeve 8.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A large-diameter steel pipe set alignment device, comprising a base plate (1), a fixing mechanism and an adjusting mechanism, characterized in that, The bottom plate (1) is rotatably connected with a bidirectional screw rod (3), one end of the bottom plate (1) is fixedly connected with a first servo motor (2), the power output end of the first servo motor (2) penetrates through the bottom plate (1) and is fixedly connected with the bidirectional screw rod (3), the other end of the upper end surface of the bottom plate (1) is fixedly connected with a limiting rod, the limiting rod is threadedly connected with moving sleeves (4) at the left and right ends of the bidirectional screw rod (3), the moving sleeves (4) are threadedly connected with the bidirectional screw rod (3) and are slidably connected with the limiting rod, the upper ends of two groups of adjacent moving sleeves (4) are fixedly connected with support tables (5), the upper ends of the support tables (5) are provided with fixing mechanisms, and the upper ends of the fixing mechanisms are provided with adjusting mechanisms.
2. The device according to claim 1, wherein The fixing mechanism comprises a pipeline fixing sleeve (8), the left and right ends of the upper end surface of the support table (5) are fixedly connected with fixed seats (6), the pipeline fixing sleeves (8) are arranged between the two groups of fixed seats (6), and the fixed seats (6) are rotatably connected with the pipeline fixing sleeves (8) through adjusting rods (7). The adjusting rods (7) are fixedly connected with the pipeline fixing sleeves (8), and the upper ends of the adjusting rods (7) are provided with adjusting mechanisms.
3. The device according to claim 2, wherein, The left and right end side walls of the pipeline fixing sleeve (8) are provided with air slots (11), the top ends of the pipeline fixing sleeves (8) are threadedly connected with threaded rods (9), the bottom ends of the threaded rods (9) are fixedly connected with pressing plates (10), the pressing plates (10) are inverted V-shaped and located in the air slots (11).
4. The device according to claim 2, wherein, The adjusting mechanism comprises a first gear set (13) and a second gear set (18), the upper end surface of the bottom plate (1) away from the limiting rod is fixedly connected with a pair of symmetrically arranged supports (15), the upper end of the support (15) close to the first servo motor (2) is rotatably connected with a rotating rod (14) at the central position, the upper end of the support (15) away from the first servo motor (2) is rotatably connected with a clamping rod (17) at the central position, and the clamping rod (17) and the rotating rod (14) are slidably connected.
5. A device for aligning pairs of large diameter steel pipes according to claim 4, characterized in that, The outer wall of the support (15) is fixedly connected with a second servo motor (16), and the power output end of the second servo motor (16) penetrates through the support (15) and is fixedly connected with the rotating rod (14).
6. A device for aligning pairs of large diameter steel pipes according to claim 5, characterized in that, The upper ends of the adjusting rods (7) are fixedly connected with transmission rods (12), and the second gear sets (18) and the first gear sets (13) are fixedly connected with the connecting positions of the clamping rods (17) and the rotating rods (14) of the two groups of transmission rods (12).
7. A device for aligning pairs of large diameter steel pipes according to claim 6, characterized in that, The first gear set (13) and the second gear set (18) each comprise a first bevel gear and a second bevel gear, the first gear set (13) is fixedly connected with the transmission rod (12), the second bevel gears are fixedly connected with the adjacent clamping rods (17) and the rotating rods (14), and the first bevel gears are vertically arranged and engaged with the second bevel gears.