A multi-directional pipe fitting and matching device and method

Abstract

The present invention relates to the mechanical field, and particularly relates to a multi-directional pipe fitting device and method. Among them, the device includes: a first bracket; a first pipe clamping device connected to the first bracket; a second bracket; a second pipe clamping device connected to the second bracket; and a first connecting member connecting the first bracket and the second bracket, and the first connecting member is configured to adjust a first distance between the first bracket and the second bracket. Through the pipe multi-directional fitting device and method of the present invention, good butt-joint of pipelines can be achieved, the quality of pipe fitting can be improved, and the operator can also be kept away from the pipeline welding point to ensure the safety of the operator. In addition, the device of the present invention has a simple structure, is easy to operate, and has strong versatility.

Description

Technical Field

[0001] The present invention relates to the field of machinery, and particularly to a multi-directional pipe fitting device and method. Background Art

[0002] With the diversified development of the social economy, mechanical equipment is closely related to various industries, and the system pipeline is an indispensable and important part. When designing the system pipeline, it is arranged according to the pipeline route and the equipment placement position. After the pipeline design is completed, production and installation are carried out. However, in some special positions, due to the influence of equipment spacing, pipeline bending, etc., it is impossible to design a formed pipeline in advance. Even if a formed pipeline is designed in advance, due to reasons such as equipment errors and pipeline bending errors, the pipeline cannot be installed and connected. Therefore, on-site pipe fitting is required, that is, the pipeline is cut into multiple sections on-site, and according to the actual equipment interface position, the pipeline sections are reasonably placed one by one and spot-welded on-site to complete the reasonable layout of the pipeline. Then, the pipeline is removed for subsequent complete welding to achieve the purpose of a complete pipeline. This process is abbreviated as pipeline "fitting". When fitting the pipeline, the operator holds two pipeline sections by hand, visually checks the butt joint and then spot-welds, and then continues to fit the next pipeline section. However, during "fitting", due to holding by hand and visual inspection, and the sparks and high temperature generated during spot-welding, it seriously affects the butt joint of the pipeline, and at the same time, it is easy to cause misalignment of the interfaces of the two pipeline sections and deviation of the butt joint, greatly reducing the quality of pipeline fitting, resulting in multiple reworks and repetitive work, and due to the sparks and high temperature generated during spot-welding, there is a great safety hazard to the operator. Summary of the Invention

[0003] This application summarizes aspects of the embodiments and should not be used to limit the claims. Other embodiments can be envisioned based on the technology described herein, which will be apparent to those skilled in the art after studying the following drawings and specific embodiments, and these embodiments are intended to be included within the scope of this application.

[0004] Aiming at the problems in the prior art during "fitting", such as being held by hand and visually inspected, the sparks and high temperature generated during spot-welding, misalignment of the interfaces of the two pipeline sections, deviation of the butt joint of the two pipeline sections, decline in the quality of pipeline fitting, high rework rate, and great safety hazard to the operator, the present invention conducts pipeline "fitting" through a reasonable device and an effective method, enabling good butt joint of the pipeline, no misalignment of the interfaces, smooth butt joint of the pipeline axes, improving the quality of pipeline fitting, keeping the operator away from the pipeline welding point, ensuring the safety of the operator, and thus solving the above problems existing in the prior art.

[0005] Specifically, according to one aspect of the present invention, a pipeline multi-directional grinding and fitting device is provided, which includes: a first bracket; a first pipeline clamping device connected to the first bracket; a second bracket; a second pipeline clamping device connected to the second bracket; and a first connecting member connecting the first bracket and the second bracket, the first connecting member being configured to adjust a first distance between the first bracket and the second bracket.

[0006] In an embodiment of the present invention, the first bracket includes a first main body and a guiding portion provided on the first main body, wherein the first main body includes a first arm and a second arm arranged oppositely; the first pipeline clamping device includes a pair of first electromagnets and second electromagnets, and the first electromagnet and the second electromagnet are respectively rotatably connected to the first arm and the second arm.

[0007] In an embodiment of the present invention, the second bracket includes a second main body and a steering portion provided on the second main body, wherein the second main body includes a third arm and a fourth arm arranged oppositely; the second pipeline clamping device includes a pair of third electromagnets and fourth electromagnets, and the third electromagnet and the fourth electromagnet are respectively rotatably connected to the third arm and the fourth arm.

[0008] In an embodiment of the present invention, the first electromagnet and the second electromagnet are respectively rotatably connected to the first arm and the second arm through a first connecting plate and a second connecting plate, and the third electromagnet and the fourth electromagnet are respectively rotatably connected to the third arm and the fourth arm through a third connecting plate and a fourth connecting plate.

[0009] In an embodiment of the present invention, an insulating layer is provided on the surface of each of the first electromagnet, the second electromagnet, the third electromagnet, and the fourth electromagnet that contacts the pipeline.

[0010] In an embodiment of the present invention, the pipeline multi-directional grinding and fitting device further includes a guiding block and a steering block. Among them, the guiding block has a first threaded hole and a first guiding hole respectively provided at both ends thereof and a second guiding hole provided between the first threaded hole and the first guiding hole, the steering block has a second threaded hole provided thereon, the second guiding hole is correspondingly arranged with the second threaded hole, and the guiding block is connected to the steering block through a second connecting member to adjust a second distance between the guiding block and the second bracket.

[0011] In an embodiment of the present invention, the second connecting member includes a longitudinal adjustment bolt, and the longitudinal adjustment bolt can extend through the second guiding hole and engage with the second threaded hole of the steering block so as to adjust the second distance.

[0012] In an embodiment of the present invention, the first connecting member includes an axial adjustment bolt; the guiding portion includes a third guiding hole and a guiding rod, and the guiding rod is configured to extend through the first guiding hole; the third guiding hole corresponds to the first threaded hole, and the axial adjustment bolt can extend through the third guiding hole and engage with the first threaded hole to adjust the first distance.

[0013] In an embodiment of the present invention, the steering portion is rotatably connected to the steering block through a third connecting member, and the second bracket is configured to rotate about the third connecting member to adjust the angle of the second bracket.

[0014] According to another aspect of the present invention, there is provided a method for multi-directional pipe fitting using the aforementioned multi-directional pipe fitting device for pipes, which includes the following steps: power on the multi-directional pipe fitting device for pipes; clamp a first pipe using a first pipe clamping device and clamp a second pipe using a second pipe clamping device; adjust the first connecting member and the second connecting member so that the interfaces of the first pipe and the second pipe are docked; adjust the third connecting member so that a predetermined angle is presented between the first pipe and the second pipe; weld the first pipe and the second pipe; and remove the multi-directional pipe fitting device for pipes from the first pipe and the second pipe.

[0015] Through the multi-directional pipe fitting device and method of the present invention, good docking of pipelines can be achieved, the quality of pipe fitting can be improved, and the operator can also be kept away from the pipeline welding point to ensure the safety of the operator. In addition, the device of the present invention has a simple structure, is easy to operate, and has strong versatility.

[0016] After studying the following description, claims and drawings, those skilled in the art will understand and realize these and other aspects, objects and features of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more fully understand the embodiments of the present application, reference should be made to the more detailed description in the drawings and the embodiments described by way of example below, wherein:

[0018] Figure 1 is a schematic diagram of a multi-directional pipe fitting device for pipes according to an embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of some components of a multi-directional pipe fitting device for pipes according to an embodiment of the present invention;

[0020] Figure 3 is an exploded schematic diagram of some components of a multi-directional pipe fitting device for pipes according to an embodiment of the present invention;

[0021] Figure 4Schematic diagram of some components of a pipeline multi-directional grinding and fitting device according to an embodiment of the present invention;

[0022] Figure 5 Exploded schematic diagram of some components of a pipeline multi-directional grinding and fitting device according to an embodiment of the present invention;

[0023] Figure 6 Schematic diagram of a pipeline multi-directional grinding and fitting device according to an embodiment of the present invention and a pipeline clamped by the device; and

[0024] Figure 7 Flowchart of a pipeline multi-directional grinding and fitting method according to an embodiment of the present invention. Detailed implementation manners

[0025] Embodiments of the present disclosure are described below. However, it should be understood that the disclosed embodiments are merely examples, and other embodiments may take various alternative forms. The drawings are not necessarily drawn to scale; certain features may be exaggerated or minimized to show details of particular components. Thus, the specific structural and functional details disclosed herein should not be construed as limiting, but merely as a representative basis for teaching those skilled in the art to use the present application in various ways. As those skilled in the art will understand, the various features shown and described with reference to any one of the drawings may be combined with the features shown in one or more other drawings to produce embodiments not explicitly shown or described. Combinations of the shown features provide representative embodiments for typical applications. However, various combinations and modifications of the features consistent with the teachings of the present disclosure may be desirable for certain specific applications or implementations.

[0026] In addition, in this document, relational terms such as first and second are used only to distinguish one entity or action from another entity or action, and do not necessarily require or imply any actual such relationship or order between these entities or actions. The terms "comprising", "including" or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, but also elements not expressly listed or inherent to such process, method, article or device.

[0027] One or more embodiments of the present application will be described below with reference to the drawings. The flowchart illustrates the process executed by the system according to the present application. It can be understood that the execution of the flowchart does not need to be in sequence, one or more steps may be omitted, one or more execution steps may be added, and one or more steps may be executed in sequence or in the reverse order, and even in some embodiments, one or more steps may be executed simultaneously.

[0028] According to one aspect of the present invention, a pipeline multi-directional grinding and fitting device 100 is provided, as Figures 1-5As shown, it includes: a first bracket 2; a first pipe clamping device 50 connected to the first bracket 2; a second bracket 7; a second pipe clamping device 51 connected to the second bracket 7; and a first connecting member 52 connecting the first bracket 2 and the second bracket 7, the first connecting member 52 being configured to adjust a first distance, for example, an axial distance, between the first bracket 2 and the second bracket 7.

[0029] The first bracket 2 includes a first body 53 and a guiding portion 54 provided on the first body 53, and the guiding portion 54 can extend upward from the first body 53. The first body 53 may include a first arm 55 and a second arm 56 which are oppositely arranged. In one embodiment, the guiding portion 54 may be provided at a substantially middle position of the first body 53, and the first arm 55 and the second arm 56 may be symmetrically arranged at both ends of the first body 53. In other embodiments, the guiding portion 54 may be arranged closer to the first arm 55 or closer to the second arm 56. The guiding portion 54 may include two extending portions extending from the first body 53, and a guiding hole 57 and a guiding rod 58 are respectively provided on the two extending portions. The guiding hole 57 may be a through hole, and the axial direction of the through hole is parallel to the axial direction of the guiding rod 58.

[0030] The first pipe clamping device 50 includes a pair of first electromagnets 8 and second electromagnets 8', and the first electromagnets 8 and the second electromagnets 8' may be sucker electromagnets, and they can be respectively connected to a power line 60 so as to generate electromagnetic force to adsorb a pipe when powered on. The first electromagnets 8 and the second electromagnets 8' can be rotatably connected to the first arm 55 and the second arm 56 respectively, so as to be able to adjust the relative setting positions of the first electromagnets 8 and the second electromagnets 8' to better clamp the pipe. In such Figure 2 and 3In the illustrated embodiment, the first electromagnet 8 is connected to the first arm 55 through the connecting plate 5. The connecting plate 5 can be rotatably connected to the first electromagnet 8 and the first arm 55 respectively through, for example, a pivot shaft 4. Correspondingly, the first arm 55 and the second arm 56 are each provided with a through hole for accommodating the pivot shaft 4. Retaining rings 3 can also be provided at both ends of the pivot shaft 4 to prevent the pivot shaft 4 from moving axially. The second electromagnet 8' can be rotatably connected to the second arm 56 through the connecting plate 5' in the same manner. In this way, when clamping a pipeline, the first electromagnet 8 and the second electromagnet 8' can be adjusted according to the diameter of the pipeline. Therefore, the pipeline clamping device described in the present invention has good versatility and is suitable for clamping pipelines of various different diameters. The surfaces of the first electromagnet 8 and the second electromagnet 8' that contact the pipeline can be set to be arc-shaped so as to conform to the shape of the pipeline. In addition, an insulating layer 59 can also be provided on this surface of the first electromagnet 8 and the second electromagnet 8' to isolate the electrode current during spot welding. In another embodiment, the connecting plate can be omitted, and the first electromagnet 8 and the second electromagnet 8' can be directly connected to the first arm 55 and the second arm 56 through the pivot shaft.

[0031] The second bracket 7 includes a second main body 61 and a turning portion 62 provided on the second main body 61. The turning portion 62 extends upward from the second main body 61 and, as Figure 4 and 5 shown, includes two extending arms. Through holes are also provided on each of these two extending arms. The second main body 61 includes a third arm 63 and a fourth arm 64 arranged oppositely. The third arm 63 and the fourth arm 64 can be symmetrically arranged with the turning portion 62 as the center, or can be asymmetrically arranged.

[0032] Similar to the first pipeline clamping device 50, the second pipeline clamping device 51 includes a pair of third electromagnets 8'' and fourth electromagnets 8'''. The third electromagnets 8'' and the fourth electromagnets 8''' can be rotatably connected to the third arm 63 and the fourth arm 64 directly through a pivot shaft, or can be rotatably connected to the third arm 63 and the fourth arm 64 through the connecting plates 5'' and 5'''. In addition, the third electromagnets 8'' and the fourth electromagnets 8''' can have the same structure as the first electromagnet 8 and the second electromagnet 8', and an insulating layer 59' is also provided on the surface where they contact the pipeline.

[0033] The pipeline multi-directional grinding and fitting device 100 can also include a guide block 13 and a turning block 9. Among them, the guide block 13 has threaded holes 65 and guide holes 66 respectively provided at both ends thereof and a guide hole 67 provided between the threaded hole 65 and the guide hole 66. The turning block 9 has a threaded hole 68 provided thereon. The guide hole 67 is correspondingly arranged with the threaded hole 68. The guide block 13 is connected to the turning block 9 through a second connecting member 69 to adjust the second distance, for example, the longitudinal distance, between the guide block 13 and the second bracket 7.

[0034] The second connecting member 69 may include a longitudinal adjustment bolt 15 which is capable of extending through the guide hole 67 and engaging with the threaded hole 68 of the steering block 9 so as to adjust the second distance. The second connecting member 69 may further include a retaining ring 3 and a thrust bearing 14. The longitudinal adjustment bolt 15 connects it to the thrust bearing 14 and the guide block 13 through the retaining ring 3', and is screwed into the threaded hole 68 of the steering block 9. Thus, by turning the longitudinal adjustment bolt 15, the distance between the guide block 13 and the steering block 9 can be adjusted. In addition, the steering block 9 is also capable of rotating about the longitudinal adjustment bolt 15 to meet the requirements of pipeline fitting.

[0035] The first connecting member 52 may include an axial adjustment bolt 1 and a retaining ring 3. The guide rod 5 is configured to extend through the guide hole 66. A slot (not shown in the figure) may be provided on the axial adjustment bolt 1. After passing through the guide hole 57, it is clamped on the first bracket 2 by the retaining ring 3. The guide hole 57 may correspond to the threaded hole 65, and the axial adjustment bolt 1 is capable of extending through the guide hole 57 and engaging with the threaded hole 65. By turning the axial adjustment bolt 1, the axial distance between the first bracket 2 and the second bracket 7 can be adjusted.

[0036] The steering portion 62 may be rotatably connected to the steering block 9 through a third connecting member 70, and the second bracket 7 is configured to rotate about the third connecting member 70 so as to adjust the angle of the second bracket 7. Threaded holes 71 and 72 may be further provided at both ends of the steering block 9. The fastening bolt 6 may be connected to the threaded hole 71. In addition, a retaining ring may be provided between the threaded hole 71 and the fastening bolt 6. The threaded hole 72 may engage with the stud 11, and the stud 11 is connected to the second bracket 7 through the nut 10 and the washer 12. After loosening the fastening bolt 6 and the nut 10, the second bracket 7 is capable of rotating about the fastening bolt 6 and the stud 11. When it is rotated to the required angle during use, the fastening bolt 6 and the nut 10 are tightened to fasten the second bracket 7 to the steering block 9.

[0037] According to the present invention, by axially adjusting the bolt 1, the guide rod 58 and the guide block 13, the first bracket 2 and the second bracket 7 are combined to form a pipe multi-directional grinding and fitting device 100. Four suction cup electromagnets are connected to a power source through power lines. An insulating layer is arranged on the electromagnet to isolate the electrode current during spot welding. The guide block 13 is provided with a threaded hole 65 and a guide hole 66. During installation, the guide rod 58 on the first bracket 2 is inserted into the guide hole 66, and the axial adjustment bolt 1 is screwed into the threaded hole 65 on the guide block 13. By screwing the axial adjustment bolt 1, the axial distance between the first bracket 2 and the second bracket 7 of the pipe multi-directional grinding and fitting device 100 is adjusted; by screwing the longitudinal adjustment bolt 15, the distance between the guide block 13 and the steering block 9 is adjusted, so as to realize the adjustment of the longitudinal distance between the first bracket 2 and the second bracket 7 (except external parts such as the guide block 13 and the thrust bearing 14) of the pipe multi-directional grinding and fitting device 100. At the same time, the steering block 9 can rotate around the longitudinal adjustment bolt 15 to meet the requirements of pipe grinding and fitting; after loosening the fastening bolt 6 and the nut 10, the second bracket 7 can rotate around the fastening bolt 6 and the stud 11 to realize the adjustment of the angle between the second bracket 7 and related components and the first bracket 2.

[0038] In an embodiment of the present invention, the above-mentioned axial adjustment bolt 1, the first bracket 2, the retaining ring 3, the pivot shaft 4, the connecting plates 5 and 5', the first electromagnet 8 and the second electromagnet 8' can form the upper part of the pipe multi-directional grinding and fitting device 100. The retaining ring 3', the connecting plates 5'' and 5''', and the related pivot shafts, fastening bolts 6, the second bracket 7, the third electromagnet 8'' and the fourth electromagnet 8''', the steering block 9, the nut 10, the stud 11, the washer 12, the guide block 13, the thrust bearing 14, and the longitudinal adjustment bolt 15 form the lower part of the pipe multi-directional grinding and fitting device 100.

[0039] According to another aspect of the present invention, there is provided a pipe multi-directional grinding and fitting method 200 using the pipe multi-directional grinding and fitting device described in the present invention. As Figure 7 shown, the method includes the following steps:

[0040] S201. Energize the pipe multi-directional grinding and fitting device;

[0041] S202. Clamp the first pipe with the first pipe clamping device and clamp the second pipe with the second pipe clamping device;

[0042] S203. Adjust the first connecting piece and the second connecting piece so that the interfaces of the first pipe and the second pipe are butted;

[0043] S204. Adjust the third connecting piece so that a predetermined angle is presented between the first pipe and the second pipe;

[0044] S205. Weld the first pipe and the second pipe; and

[0045] S206. Remove the pipeline multi-directional fitting device from the first pipeline and the second pipeline.

[0046] During pipeline fitting, the sucker electromagnet is energized to adsorb the upper part on a section of the pipeline to be fitted, and adsorb another section of the pipeline to be fitted through the sucker electromagnet. According to the pipeline routing requirements, adjust the axial distance between the two sections of pipelines by the axial adjustment bolt 1, adjust the longitudinal distance by the longitudinal adjustment bolt 15, and adjust the angle by the steering block 9. After adjustment, spot-weld the two sections of pipelines. Fit other sections of pipelines in the same way. After completion, remove the pipeline multi-directional fitting device and re-weld the pipelines to complete the final fitting. When the device is adjusted, it can ensure that the butt joints of each section of pipes are smooth, without misalignment of the axes, and can also achieve multi-directional adjustment.

[0047] The technical solution of the present invention will be further described below through an embodiment of a certain system pipeline fitting.

[0048] Reference Figure 6 , the pipeline multi-directional fitting device is energized, and the upper part of the pipeline multi-directional fitting device is adsorbed on the pipe 16 and the lower part is adsorbed on the pipe 17 through the sucker electromagnet ( Figure 6 only the first electromagnet 8 is shown in the figure). Turn the axial adjustment bolt 1 and turn the longitudinal adjustment bolt 15 to adjust the distance between the two sections of pipes so that the interfaces of the two sections of pipes are closely butted. Loosen the fastening bolt 6 and the nut 10, rotate the second bracket 7, and after reaching the appropriate angle, tighten the fastening bolt 6 and the nut 10 to fix the angle. Spot-weld the two sections of pipes. After completion, remove the pipeline multi-directional fitting device and re-weld the pipelines to complete the final fitting.

[0049] Since there are many pipe series diameters and various pipeline routings, however, pipeline systems with different diameters and different pipeline routings can also use the technical solution of the present invention.

[0050] This application document is intended to illustrate how to use the disclosed technology and various embodiments, and is not intended to limit the scope and spirit of what it actually refers to and what is equivalent. Moreover, the above description does not exhaust all possibilities or limit the scope of protection to the exact form disclosed. According to the above teachings, changes and variations are possible. The selected and described embodiments provide the best illustration of the principles of the technology and its practical applications, and enable those skilled in the art to use the disclosed technology for various changes in various conceivable specific applications. Therefore, without substantially departing from the spirit and principles of the technology described herein, all kinds of changes and modifications made to the above embodiments are intended to be included within the scope of this disclosure.

Claims

1. A multi-directional pipe fitting device, characterized in that, Comprising: A first bracket, the first bracket including a first body and a guiding portion provided on the first body; A first pipe clamping device connected to the first bracket; A second bracket, the second bracket including a second body and a turning portion provided on the second body; A second pipe clamping device connected to the second bracket; A first connecting member connecting the first bracket and the second bracket, the first connecting member being configured to adjust a first distance between the first bracket and the second bracket; And A guiding block and a turning block, wherein the guiding block has a first threaded hole and a first guiding hole respectively provided at both ends thereof and a second guiding hole provided between the first threaded hole and the first guiding hole, an axis of the first guiding hole being perpendicular to an axis of the second guiding hole; the turning block has a second threaded hole provided thereon, the second guiding hole being correspondingly provided with the second threaded hole, and the guiding block being connected to the turning block through a second connecting member to adjust a second distance between the guiding block and the second bracket, The guiding portion includes a third guiding hole and a guiding rod, the guiding rod being configured to extend through the first guiding hole; the third guiding hole corresponds to the first threaded hole, and the turning portion is rotatably connected to the turning block through a third connecting member.

2. The multi-directional pipe matching device according to claim 1, characterized in that, Wherein the first body includes a first arm and a second arm disposed opposite to each other; the first pipe clamping device includes a pair of first electromagnets and second electromagnets, the first electromagnet and the second electromagnet being respectively rotatably connected to the first arm and the second arm.

3. The pipe multi-directional grinding and matching device according to claim 2, wherein, Wherein the second body includes a third arm and a fourth arm disposed opposite to each other; the second pipe clamping device includes a pair of third electromagnets and fourth electromagnets, the third electromagnet and the fourth electromagnet being respectively rotatably connected to the third arm and the fourth arm.

4. The pipe multi-directional grinding and matching device according to claim 3, wherein, The first electromagnet is rotatably connected to the first arm through a first connecting plate, the second electromagnet is rotatably connected to the second arm through a second connecting plate, the third electromagnet is rotatably connected to the third arm through a third connecting plate, and the fourth electromagnet is rotatably connected to the fourth arm through a fourth connecting plate.

5. The pipe multi-directional grinding and matching device according to claim 3, characterized in that, An insulating layer is provided on a surface of each of the first electromagnet, the second electromagnet, the third electromagnet and the fourth electromagnet that contacts the pipe.

6. The pipe multi-directional grinding and matching device according to claim 1, wherein, The second connecting member includes a longitudinal adjustment bolt, and the longitudinal adjustment bolt can extend through the second guiding hole and engage with the second threaded hole of the turning block so as to adjust the second distance.

7. The multi-directional pipe fitting device according to claim 1, wherein The first connecting member includes an axial adjustment bolt, and the axial adjustment bolt can extend through the third guiding hole and engage with the first threaded hole so as to adjust the first distance.

8. The multi-directional pipe fitting device according to claim 1, characterized in that The second bracket is configured to rotate about the third connecting member as an axis so as to adjust an angle of the second bracket.

9. A multi-directional pipe fitting method using the pipe multi-directional fitting device described in claim 8, characterized in that, Including the following steps: Power on the pipe multi-directional grinding and fitting device; Clamp a first pipe by using the first pipe clamping device, and clamp a second pipe by using the second pipe clamping device; Adjust the first connecting piece and the second connecting piece so that the interfaces of the first pipeline and the second pipeline are docked; Adjust the third connecting piece so that a predetermined angle is presented between the first pipeline and the second pipeline; Weld the first pipeline and the second pipeline; and Remove the pipeline multi-directional matching device from the first pipeline and the second pipeline.

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