Pipeline assembling device

Abstract

The invention provides a pipeline assembly device which comprises a welding platform, clamping jaws used for clamping pipelines are symmetrically arranged on the left side and the right side of the welding platform, meanwhile, at least two pairs of clamping jaws are arranged in the front-back direction, and the two pairs of clamping jaws clamp two pipelines to be in butt joint respectively. And then the butt joint position of the pipeline is welded through a welding arm on the welding platform. The rollers are arranged on the inner surfaces of the clamping jaws, the multiple rollers are distributed in the circumferential direction of the clamping jaws at intervals, sliding friction between the pipeline and the clamping jaws is converted into rolling friction through the rollers, and the moving resistance of the pipeline is reduced. The clamping jaw is composed of the upper jaw body, the lower jaw body and related parts, the inner diameter size can be accurately adjusted according to pipelines with different pipe diameters through stretching and retracting of the first extending part and the second extending part, and the pipelines with different specifications are stably clamped. And meanwhile, welding of various complex interfaces can be achieved in cooperation with an electric guide rail and rolling wheels, the welding requirements of different shapes and positions are met, and the universality and flexibility of the device are improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline welding, in particular to a pipeline assembly device. Background Art

[0002] In many fields such as industrial production, chemical industry, and energy, the assembly of complex piping systems is a common and important task. In the field of ships, the cabin space is small, the equipment is numerous, and the pipes connecting different functional areas are cross-regional, with many specifications and complex spatial layout structures, which makes the workload of pipe assembly large. The traditional pipe assembly method often relies on manual operation, using simple clamps or tools to fix the pipes, and then performing connection operations such as welding, that is, adjusting the misalignment of the assembly by setting adjustment blocks and feeler gauges, and then spot welding the outer surface of the pipe with a horse plate, which is inefficient. Due to the processing ovality of the pipeline itself and the dimensional error, the quality stability of the assembly process is poor. The assembly process has very high requirements and dependence on the workers' skills, and the assembly time is very long. At the same time, after the welding is completed, the horse plate needs to be disassembled and assembled, and the horse plate needs to be repaired when the assembly is performed again next time.

[0003] The rapid assembly device for complex pipelines in the prior art lacks effective auxiliary movement and adjustment devices during the pipeline assembly process, resulting in large pipeline movement resistance and difficulty in position adjustment, making it difficult to meet high-precision assembly requirements, thereby affecting the welding quality and the performance of the entire pipeline system. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a pipeline assembly device, which includes a welding platform, and the left and right sides of the welding platform are symmetrically provided with clamps for clamping pipelines, and at least two pairs of clamps are provided along the front-to-back direction, and the two pairs of clamps respectively clamp two pipelines to be connected;

[0005] The clamp is arc-shaped, and a roller is provided on the inner surface of the clamp facing the center of the circle, and a plurality of the rollers are arranged along the circumference of the clamp. At least one rolling wheel protruding from the welding platform surface is provided below the clamp, and the axis of the rolling wheel is parallel to the axis of the pipeline, and the rolling wheel contacts the outer wall of the pipeline to drive the pipeline to rotate.

[0006] Optionally, a mounting beam is fixed under the table top of the welding platform, and the rolling wheel is installed on the mounting beam through a vertically arranged elastic telescopic frame. The rolling wheel can move up and down under the action of the elastic telescopic frame and the upper edge of the rolling wheel protrudes from the table top of the welding platform.

[0007] Optionally, the rollers are mounted on the clamping jaws via a mounting frame, and the rollers are arranged at equal distances.

[0008] Optionally, the roller is made of heat-insulating material.

[0009] Optionally, the clamp includes an upper jaw and a lower jaw that are hinged, the upper jaw is provided with a rotating shaft, the lower jaw is provided with a rotating sleeve, the rotating sleeve is wrapped around the outer side of the rotating shaft, and the torsion spring is installed between the rotating shaft and the rotating sleeve, thereby providing elastic force for the upper jaw and the lower jaw to approach each other.

[0010] Optionally, the inner cavities of the upper jaw and the lower jaw are both sleeved with a first extension portion, the inner cavity of the first extension portion is sleeved with a second extension portion, the first extension portion and the second extension portion can be pulled out along the circumference of the clamp, the inner cavity of the upper jaw and the lower jaw is a sliding cavity, the sliding cavity is connected to one end of the elastic sheet, and the other end of the elastic sheet is connected to the second extension portion.

[0011] Optionally, the first extension part and the second extension part are both provided with limiting protrusions, the upper claw and the lower claw are both provided with limiting plates adapted to the limiting protrusion of the first extension part, and the first extension part is provided with a limiting plate adapted to the limiting protrusion of the second extension part.

[0012] Optionally, telescopic rods are provided on the left and right sides of the welding platform, the lower ends of the telescopic rods are fixed to a movable seat located on the table top, and the upper ends are provided with a transfer seat, which is rotatably connected to the rotating shaft of the clamp.

[0013] Optionally, welding arms are further provided on the left and right sides of the welding platform, and the welding arms include a rotating base located on the table top, a three-section pitch-adjustable support arm, and a welding head installed at the end of the support arm.

[0014] Optionally, electric guide rails extending in the front-rear direction are arranged on the left and right sides of the welding platform tabletop, and the movable seat and the rotating base are arranged on the electric guide rails.

[0015] As described above, the present invention provides a pipeline assembly device, which includes a welding platform, and the left and right sides of the welding platform are symmetrically provided with clamps for clamping pipelines, and at least two pairs of clamps are provided along the front and rear directions. The two pairs of clamps respectively clamp the two pipelines to be connected, and then the joints of the pipelines are welded by the welding arms on the welding platform. The inner surface of the clamp is provided with a roller, and a plurality of rollers are distributed at intervals along the circumference of the clamp. The roller can rotate freely, and the sliding friction between the pipeline and the clamp is converted into rolling friction, which reduces the movement resistance of the pipeline. The operator can adjust the position of the pipeline more quickly and accurately, improve the efficiency and accuracy of complex pipeline assembly, shorten the assembly cycle of large-scale pipeline systems, reduce rework problems caused by position deviation, and improve the progress and quality of the project. The clamp is composed of an upper jaw, a lower jaw and related components, and can accurately adjust the inner diameter size according to pipelines of different diameters through the extension and contraction of the first extension part and the second extension part, and firmly clamp pipelines of different specifications. At the same time, with the forward and backward movement of the electric guide rail and the rotation of the rolling wheel to the pipeline, the welding of various complex interfaces can be realized, meeting the welding requirements of different shapes and positions, and improving the versatility and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the overall structure of a pipeline assembly device.

[0017] Figure 2 The present invention is a schematic diagram of the cross-sectional structure of a pipeline assembly device.

[0018] Figure 3 The present invention is a schematic diagram of the connection between the clamping jaws and the movable seat of a pipeline assembly device.

[0019] Figure 4 The present invention is a schematic diagram of the clamping structure of a pipeline assembly device.

[0020] Figure 5 The present invention is a schematic diagram of the rotating shaft and torsion spring structure of a pipeline assembly device.

[0021] Figure 6 The invention is a schematic diagram of the structure of the extension part of a pipeline assembly device.

[0022] Figure 7 The present invention is a schematic diagram of the cross-sectional structure of a clamping jaw of a pipeline assembly device.

[0023] Figure 8 The present invention is a schematic diagram of the operation of a pipeline assembly device.

[0024] Component number description

[0025] 1. Welding platform; 101. Electric guide rail; 102. Moving seat; 103. Mounting beam; 2. Welding arm; 3. Telescopic rod; 301. Adapter seat; 4. Clamp; 401. Upper claw; 402. Lower claw; 403. First extension part; 404. Second extension part; 405. Sliding cavity; 406. Elastic sheet; 5. Rotating shaft; 501. Rotating hole; 502. Rotating sleeve; 6. Torsion spring; 7. Roller; 701. Mounting frame; 702. Rolling wheel; 703. Elastic telescopic frame; 001. Pipeline; 002. Pipeline; 003. Weld groove. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0027] For example, when describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic view is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional space dimensions of length, width and depth should be included.

[0028] For ease of description, spatial relational terms such as "under", "below", "below", "below", "above", "on", etc. may be used herein to describe the relationship of one element or feature shown in the drawings to other elements or features. It will be understood that these spatial relational terms are intended to include other directions of the device in use or operation in addition to the directions depicted in the drawings. In addition, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or there can be one or more intervening layers. As used herein, "between..." means including the end point values.

[0029] In the context of the present application, a structure in which a first feature is described as being "above" a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact.

[0030] It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the present invention in a schematic manner, and therefore the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0031] like Figures 1 to 7 As shown, this embodiment provides a pipeline assembly device, which specifically includes:

[0032] A welding platform 1, wherein jaws 4 are symmetrically arranged on the left and right sides of the welding platform 1 for clamping the pipeline, and at least two pairs of jaws 4 are arranged along the front-to-back direction, and the two pairs of jaws 4 respectively clamp the two pipelines to be butted, and then the butt joints of the pipelines are welded through the welding arm 2.

[0033] The clamping jaw 4 is arc-shaped, and a roller 7 is provided on the inner surface of the clamping jaw 4 facing the center of the circle. A plurality of rollers are distributed at intervals along the circumference of the clamping jaw 4. At least one rolling wheel 702 protruding from the surface of the welding platform 1 is provided below the clamping jaw 4, and the axis of the rolling wheel 702 is parallel to the axis of the pipeline.

[0034] Mounting frames 701 are provided at both ends of the roller 7, and the roller 7 is mounted on the clamping jaw 4 through the mounting frames 701. The roller 7 is made of heat-insulating material. A mounting beam 103 is fixed below the table of the welding platform 1. The rolling wheel 702 is mounted on the mounting beam 103 through a vertically arranged elastic telescopic frame 703. The rolling wheel 702 can move up and down under the action of the elastic telescopic frame 703, and the upper edge of the rolling wheel 702 protrudes from the table of the welding platform 1. The upper end of the elastic telescopic frame 703 is connected to the wheel axle of the rolling wheel 702, and the lower end is connected to the mounting beam 103.

[0035] The rollers 7 are firmly mounted on the inner surface of the clamping jaw 4 through the mounting frame 701 and are distributed at intervals along the inner side of the clamping jaw 4 .

[0036] When the clamping jaws 4 clamp the pipeline, the outer surface of the pipeline will be in close contact with the roller 7, forming a fitting relationship between the surface and the cylindrical surface. This contact mode can ensure that the force between the two is evenly distributed when the pipeline moves or adjusts its position.

[0037] Since the roller 7 is designed to be a freely rotatable structure, when the pipeline is moved or its position is adjusted by an external force in the clamp 4, the friction between the pipeline surface and the roller 7 will cause the roller 7 to roll around its own axis.

[0038] This rolling motion greatly reduces the relative sliding friction between the pipeline and the clamp 4, converting the original sliding friction into rolling friction, so that the movement of the pipeline in the clamp 4 is easier and smoother, and the resistance that needs to be overcome when the pipeline moves is greatly reduced. By reducing the resistance to the movement of the pipeline, the operator can adjust the position of the pipeline more easily, and can adjust the pipeline to the required position more quickly and accurately, further improving the efficiency and accuracy of complex pipeline assembly. In the assembly of large-scale pipeline systems, this improvement in efficiency and accuracy can significantly shorten the assembly cycle, reduce rework caused by position deviation, and improve the progress and quality of the entire project.

[0039] During the welding process, a large amount of heat will be generated at the welding part. If this heat is directly transferred to the clamping jaw 4 and other adjacent parts, it may cause the temperature of the parts to be too high. Excessive temperature will cause the material properties of the clamping jaw 4 and other parts to change, such as reduced strength and poor toughness, which will affect their clamping force and service life. The roller 7 made of heat-insulating material can effectively block the transfer of heat, reduce the impact of heat on the clamping jaw 4 and other parts, prevent parts from being damaged or performance degradation due to overheating, extend the service life of the entire device, and reduce the maintenance cost and replacement frequency of the equipment.

[0040] The elastic telescopic frame 703 has a certain elastic deformation ability, which enables the rolling wheel 702 to float up and down within a certain range. When pipes of different diameters and shapes are placed on the welding platform 1, the rolling wheel 702 will automatically adjust its height according to the weight and shape of the pipe. In addition, the number of rolling wheels 702 is not limited to one, and can be two symmetrical left and right, or multiple pairs along the front and back direction.

[0041] Specifically, when the pipeline is heavy or irregular in shape, resulting in high local pressure, the elastic telescopic frame 703 will be compressed and deformed under the pressure, causing the rolling wheel 702 to drop until it is in close contact with the pipeline surface and provides effective support force; conversely, when the pipeline is light or has a more regular shape, the elastic restoring force of the elastic telescopic frame 703 will cause the rolling wheel 702 to rise to a suitable height, always maintaining good contact with the pipeline surface.

[0042] When the pipeline needs to be moved, the rolling wheel 702 will roll with the movement of the pipeline surface. The friction between the rolling wheel 702 and the pipeline surface is small, and the pipeline can be driven to rotate while providing support, so that the pipeline can freely adjust the angle on the welding platform 1, which facilitates the welding operation of the welding arm. The floating design of the rolling wheel 702 enables it to adapt to pipelines of different diameters and shapes. No matter how the specifications of the pipeline change, it can ensure good contact and support with the pipeline surface. This feature greatly facilitates the movement and adjustment of the pipeline. The operator does not need to frequently adjust the support device or worry about the support problem of the pipeline. He can focus more on the assembly of the pipeline, further improving the convenience and efficiency of complex pipeline assembly, and reducing labor intensity and difficulty of operation.

[0043] Furthermore, the clamping jaw 4 includes a hinged upper jaw 401 and a lower jaw 402, the upper jaw 401 and the lower jaw 402 are rotationally connected, a torsion spring 6 is arranged between the upper jaw 401 and the lower jaw 402, a rotating shaft 5 is arranged on the upper jaw 401, a rotating sleeve 502 is arranged on the lower jaw 402, the rotating sleeve 502 is wrapped around the outer side of the rotating shaft 5, and the torsion spring 6 is installed between the rotating shaft 5 and the rotating sleeve 502, thereby providing elastic force for the upper jaw 401 and the lower jaw 402 to approach each other.

[0044] The clamping jaw 4 is composed of an arc-shaped upper jaw 401 and a lower jaw 402, which are rotatably connected by a rotating shaft 5 and a rotating sleeve 502. This connection mode enables the upper jaw 401 and the lower jaw 402 to be relatively flexible in opening and closing. A torsion spring 6 is installed between the rotating shaft 5 and the rotating sleeve 502. The torsion spring 6 has a certain elastic potential energy in a natural state, and generates an elastic force that makes the upper jaw 401 and the lower jaw 402 approach each other, so that the clamping jaw 4 has a tendency to automatically clamp.

[0045] Furthermore, the inner cavities of the upper jaw 401 and the lower jaw 402 are both sleeved with the first extension part 403, and the inner cavities of the first extension part 403 are sleeved with the second extension part 404. The first extension part 403 and the second extension part 404 can be pulled out along the circumference of the clamping jaw 4. The inner cavities of the upper jaw 401 and the lower jaw 402 are sliding cavities 405, and the sliding cavity 405 is connected to one end of the elastic sheet 406, and the other end of the elastic sheet 406 is connected to the second extension part 404. The inner surfaces of the arc-shaped upper jaw 401, the lower jaw 402, the first extension part 403 and the second extension part 404 facing the center of the circle are all fixed with rollers 7 to achieve clamping of the pipeline. When the first extension part 403 and the second extension part 404 are both extended outward, the upper jaw 401 and the lower jaw 402 form a complete semicircle to completely cover the pipeline. The roller 7 fixed to the first extension portion 403 and the second extension portion 404 is located at the end away from the rotating shaft 5 to avoid affecting the extension and retraction.

[0046] The first extension part 403 and the second extension part 404 are both provided with limiting protrusions, the upper claw 401 and the lower claw 402 are provided with limiting plates adapted to the limiting protrusion of the first extension part 403, and the first extension part 403 is provided with a limiting plate adapted to the limiting protrusion of the second extension part 404, so as to provide sliding guidance and avoid slipping.

[0047] When the inner diameter of the clamping jaw 4 needs to be adjusted to adapt to pipelines of different diameters, external force acts on the first extension portion 403 and the second extension portion 404 to slide between the upper jaw 401 and the lower jaw 402. At this time, the elastic sheet 406 will be deformed due to the sliding of the second extension portion 404, thereby generating elastic force to support the second extension portion 404.

[0048] At the same time, the limiting protrusions on the first extension part 403 and the second extension part 404 cooperate with the limiting plates on the upper claw 401 and the lower claw 402 to limit the sliding range of the first extension part 403 and the second extension part 404, ensuring that the clamping jaw 4 can remain stable after being adjusted to a suitable inner diameter, thereby realizing precise adjustment of the inner diameter size of the clamping jaw 4 according to pipelines of different diameters, so that it can firmly clamp pipelines of different specifications.

[0049] This unique adjustable design can flexibly change the inner diameter size according to actual needs, so as to adapt to complex pipelines of various diameters. Whether it is a large-scale pipeline system in industrial production or a small pipeline connection in a laboratory or other place, the clamp 4 can play an effective role, greatly improving the versatility and flexibility of the entire device, so that it can meet the needs of complex pipeline assembly in different scenarios.

[0050] When the pipeline is placed in the clamping jaws 4, the elastic force provided by the torsion spring 6 can quickly enable the clamping jaws 4 to clamp the pipeline without the need for cumbersome manual clamping operations, thereby greatly reducing manual operation time and improving the overall efficiency of assembly.

[0051] Since the clamping jaws 4 can firmly clamp pipelines of different specifications, the relative positions of the pipelines during the assembly process are accurately fixed. This is crucial for subsequent welding work, and can ensure the accuracy and consistency of the welding parts, avoid welding defects caused by pipeline position deviation, such as uneven welds, insufficient welding strength, etc., thereby effectively improving the welding quality and ensuring the reliability and stability of the entire pipeline system.

[0052] The automatic clamping function also improves the safety of operation to a certain extent. Compared with the manual clamping method, it avoids the potential safety hazards such as pipeline slipping and operator pinching caused by improper manual operation or uneven clamping force, and provides a safer and more reliable operating environment for the assembly of complex pipelines. By improving the versatility and assembly efficiency of the device, the increase in production costs caused by frequent replacement of different specifications of clamps 4 or low assembly efficiency is reduced. On the one hand, there is no need to equip each pipe diameter with a special clamp 4, which reduces the equipment procurement cost; on the other hand, the improved assembly efficiency can complete more pipeline assembly tasks per unit time, increase production output, and thus improve the economic benefits of the enterprise.

[0053] Furthermore, welding arms 2 are provided on the left and right sides of the welding platform 1. The welding arms 2 include a rotating base located on the table, a three-section pitch-adjustable support arm, and a welding head installed at the end of the support arm.

[0054] The welding arm 2 includes a rotating base, a three-section pitch-adjustable support arm, and a welding head installed at the end of the support arm. The rotating base allows the welding arm 2 to rotate in the horizontal direction to adjust the welding position; the three-section pitch-adjustable support arm can flexibly adjust the height and angle of the welding head in the vertical direction, so that the welding head can accurately align with the welding part of the pipeline to meet the welding requirements of different shapes and positions.

[0055] This multi-degree-of-freedom adjustment function enables the welding arm 2 to accurately reach the welding position in a complex spatial environment without the need for frequent manual adjustment of the position of pipelines or welding equipment, thereby greatly improving the efficiency and quality of welding.

[0056] At the same time, the adjustable welding arm 2 can adapt to the welding of complex pipelines with different diameters, different shapes and different assembly methods, thereby enhancing the versatility and applicability of the device.

[0057] Furthermore, telescopic rods 3 are provided on the left and right sides of the welding platform 1, the lower end of the telescopic rod 3 is fixed to the movable seat 102 located on the table top, and an adapter seat 301 is provided on the upper end. The adapter seat 301 is rotatably connected to the rotating shaft 5, and rotating holes 501 are opened at both ends of the rotating shaft 5, and the rotating holes 501 are sleeved on the outer side of the adapter seat 301.

[0058] One end of the telescopic rod 3 is connected to the rotating shaft 5 on the clamping jaw 4 through the adapter seat 301, and the other end is installed on the moving seat 102. The moving seat 102 on the electric guide rail 101 can drive the telescopic rod 3 and the clamping jaw 4 to move along the guide rail direction, thereby adjusting the position of the clamping jaw 4 to meet the needs of complex pipeline groups with different lengths and layouts.

[0059] At the same time, the telescopic rod 3 itself can be extended and retracted to further adjust the distance between the clamping jaws 4 and the welding platform 1, ensuring that the pipeline is assembled and welded at the appropriate position. Through the synergistic effect of the electric guide rail 101 and the telescopic rod 3, the two-dimensional position adjustment of the clamping jaws 4 in the plane and the precise control of the distance between the clamping jaws 4 and the welding platform 1 are achieved. This enables the device to flexibly cope with various complex pipeline layouts and assembly requirements, improves the adaptability and automation of the device, reduces manual intervention, and improves assembly efficiency and welding quality.

[0060] Furthermore, electric guide rails 101 extending in the front-to-back direction are arranged on the left and right sides of the welding platform 1, and the movable seat 102 is arranged on the electric guide rail 101. The other end of the telescopic rod 3 is installed on the movable seat 102, and the rotating base of the welding arm 2 is also installed on the electric guide rail 101.

[0061] The electric guide rail 101 serves as a moving track for the moving base 102 , and is driven by a motor so that the moving base 102 can move smoothly in its setting direction.

[0062] The rotating base of the welding arm 2 and the moving base 102 equipped with the telescopic rod 3 are both installed on the electric guide rail 101, thereby realizing the forward and backward movement of the welding arm 2 and the clamping jaw 4 in the horizontal direction, ensuring that the relative position of the welding head and the pipeline welding part always remains accurate, facilitating continuous welding operations.

[0063] The electric guide rail 101 provides precise and stable guidance and power for the movement of the welding arm 2 and the clamping jaw 4, ensuring their position accuracy and synchronization during the movement. This not only improves the efficiency and quality of welding, but also reduces the position deviation and unstable factors that may be caused by manual movement, making the entire complex pipeline assembly and welding process more efficient, reliable and automated.

[0064] like Figure 8 As shown, it is a working schematic diagram of the pipeline assembly device, two pairs of clamps 4 respectively clamp two pipelines to be butted, namely pipeline 001 and pipeline 002, and a weld groove 003 is formed at the butt joint of pipeline 001 and pipeline 002, and the butt joint of the pipeline is welded by the welding arm 2. The welding arm 2 can move in the front and rear directions along the electric guide rail 101, and can also move in multiple directions through the support arm, and cooperate with the rolling wheel 702 to rotate the pipeline, so as to realize the welding of various complex interfaces and ensure the welding quality.

[0065] In summary, the present invention provides a pipeline assembly device, which includes a welding platform, and the left and right sides of the welding platform are symmetrically provided with clamps for clamping pipelines, and at least two pairs of clamps are provided along the front and rear directions. The two pairs of clamps respectively clamp the two pipelines to be connected, and then the joints of the pipelines are welded by the welding arms on the welding platform. The inner surface of the clamp is provided with a roller, and a plurality of rollers are distributed at intervals along the circumference of the clamp. The roller can rotate freely, and the sliding friction between the pipeline and the clamp is converted into rolling friction, which reduces the movement resistance of the pipeline. The operator can adjust the position of the pipeline more quickly and accurately, improve the efficiency and accuracy of complex pipeline assembly, shorten the assembly cycle of large-scale pipeline systems, reduce rework caused by position deviation and other problems, and improve the progress and quality of the project. The clamp is composed of an upper jaw, a lower jaw and related components, and can accurately adjust the inner diameter size according to pipelines of different diameters through the extension and contraction of the first extension part and the second extension part, and firmly clamp pipelines of different specifications. At the same time, with the forward and backward movement of the electric guide rail and the rotation of the rolling wheel to the pipeline, the welding of various complex interfaces can be realized, meeting the welding requirements of different shapes and positions, and improving the versatility and flexibility of the device.

[0066] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A pipeline assembly device, characterized in that: The pipeline assembly device comprises a welding platform, and the left and right sides of the welding platform are symmetrically provided with clamps for clamping the pipelines, and at least two pairs of clamps are provided along the front-back direction, and the two pairs of clamps respectively clamp the two pipelines to be connected; The clamp is arc-shaped, and a roller is provided on the inner surface of the clamp facing the center of the circle, and a plurality of the rollers are arranged along the circumference of the clamp. At least one rolling wheel protruding from the welding platform surface is provided below the clamp, and the axis of the rolling wheel is parallel to the axis of the pipeline, and the rolling wheel contacts the outer wall of the pipeline to drive the pipeline to rotate.

2. The pipeline assembly device according to claim 1, characterized in that: A mounting beam is fixed below the tabletop of the welding platform, and the rolling wheel is mounted on the mounting beam via a vertically arranged elastic telescopic frame. The rolling wheel can move up and down under the action of the elastic telescopic frame and the upper edge of the rolling wheel protrudes from the tabletop of the welding platform.

3. The pipeline assembly device according to claim 1, characterized in that: The rollers are mounted on the clamping jaws via a mounting frame, and the rollers are arranged at equal distances.

4. The pipeline assembly device according to claim 1, characterized in that: The drum is made of heat-insulating material.

5. The pipeline assembly device according to claim 1, characterized in that: The clamping jaw includes an upper jaw and a lower jaw which are hinged. The upper jaw is provided with a rotating shaft, and the lower jaw is provided with a rotating sleeve. The rotating sleeve is wrapped around the outer side of the rotating shaft. The torsion spring is installed between the rotating shaft and the rotating sleeve, thereby providing elastic force for the upper jaw and the lower jaw to approach each other.

6. The pipeline assembly device according to claim 5, characterized in that: The inner cavities of the upper jaw and the lower jaw are both sleeved with the first extension part, the inner cavity of the first extension part is sleeved with the second extension part, the first extension part and the second extension part can be pulled out along the circumference of the clamping jaw, the inner cavity of the upper jaw and the lower jaw is a sliding cavity, the sliding cavity is connected to one end of the elastic sheet, and the other end of the elastic sheet is connected to the second extension part.

7. The pipeline assembly device according to claim 6, characterized in that: The first extension part and the second extension part are both provided with limiting protrusions, the upper claw and the lower claw are both provided with limiting plates adapted to the limiting protrusion of the first extension part, and the first extension part is provided with a limiting plate adapted to the limiting protrusion of the second extension part.

8. The pipeline assembly device according to claim 5, characterized in that: Telescopic rods are arranged on the left and right sides of the welding platform, the lower ends of the telescopic rods are fixed to a movable seat located on the table top, and the upper ends of the telescopic rods are arranged with a transfer seat, which is rotatably connected to the rotating shaft of the clamping jaws.

9. The pipeline assembly device according to claim 8, characterized in that: Welding arms are also arranged on the left and right sides of the welding platform. The welding arms include a rotating base located on the table top, a three-section pitch-adjustable support arm, and a welding head installed at the end of the support arm.

10. The pipeline assembly device according to claim 9, characterized in that: The left and right sides of the welding platform table are provided with electric guide rails extending in the front-back direction, and the moving seat and the rotating base are provided on the electric guide rails.

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