Auxiliary butt joint device for pipeline welding

Abstract

The auxiliary butt joint device for pipeline welding comprises a left connecting frame and a right connecting frame, the left connecting frame and the right connecting frame are fixed in a horizontal state, and a left butt joint assembly and a right butt joint assembly which enable two pipelines to be in butt joint are arranged on the opposite sides of the left connecting frame and the right connecting frame respectively. The left butt joint assembly and the right butt joint assembly each comprise a bottom frame body, an extrusion alignment assembly, a pressing driving assembly and a supporting adjusting assembly. The extrusion alignment assembly can push the two pipelines to synchronously move in the opposite directions, so that the problems of misalignment, non-uniform gaps and the like in the butt joint process of the two pipelines are avoided, the welding effect and the welding strength of the pipelines are improved, and manual butt joint by workers is not needed; the supporting and adjusting assembly enables the center lines of the two pipelines to completely coincide, workers do not need to adjust the positions of the pipelines in the working process, the labor intensity and the engineering cost are reduced, the working progress is accelerated, and the pipeline welding efficiency is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline welding, and in particular to an auxiliary butt joint device for pipeline welding. Background Art

[0002] In pipeline installation projects, pipeline welding is a key link, and precise docking of pipelines is the basis for ensuring welding quality. The traditional method of pipeline docking mainly relies on manual operation. Workers use simple tools such as crowbars and ropes to align and fix the pipelines based on their experience. This method is difficult to ensure that the center lines of the two pipelines are completely overlapped, and it is easy to have problems such as misalignment and uneven gaps, resulting in insufficient weld strength, which in turn causes safety hazards. In addition, the traditional method of pipeline docking requires workers to repeatedly adjust the position of the pipeline, which has the problems of high labor intensity and slow work progress, resulting in increased project costs and even delays in the entire project schedule.

[0003] Chinese invention patent CN110091102A (publication date: August 6, 2019) discloses an auxiliary docking device for chemical pipeline welding. The invention does not require manual lifting of chemical pipelines for docking, has low labor intensity, can be easily moved, and can be easily centered, saving time and effort, and is easy to produce and maintain, with low production and maintenance costs.

[0004] Chinese utility model patent CN220838755U (publication date: April 26, 2024) discloses an auxiliary docking platform for pipeline welding. The utility model moves downward through a fixed block, fixes the pipeline body under the action of a first anti-slip pad, fixes the base, and then starts the motor to drive the second threaded rod to rotate. Under the action of the threaded connection, the pipeline body on the movable side moves toward the immovable side, so that the pipeline bodies of two adjacent blocks can be docked, and pipelines of different apertures can be docked with each other, so as to facilitate welding by the staff and avoid the situation where the welding port is not well docked, resulting in low firmness and compressive resistance.

[0005] Although the above patents have solved the problem of high labor intensity in welding work to a certain extent, they have not solved the problems of misalignment and uneven gaps, which lead to insufficient weld strength and potential safety hazards. In view of the above problems existing in current pipeline welding work, the present invention provides an auxiliary butt joint device for pipeline welding. Summary of the invention

[0006] The purpose of the present invention is to overcome the problems of misalignment, uneven gaps, high labor intensity, insufficient weld strength and high engineering costs that are prone to occur in existing pipeline welding work, and to provide an auxiliary docking device for pipeline welding. This method can not only avoid the problems of misalignment, uneven gaps, etc., but also significantly improve the welding effect and welding strength of the pipeline. During the welding process, there is no need for workers to adjust the position of the pipeline, thereby improving the efficiency of pipeline welding.

[0007] An auxiliary butt joint device for pipeline welding, comprising a left connecting assembly, a left connecting frame, a right connecting frame, and a right connecting assembly, wherein the left connecting frame and the right connecting frame are fixed in a horizontal state, and the left butt joint assembly and the right butt joint assembly are respectively arranged on opposite sides of the left connecting frame and the right connecting frame, and are used for butt jointing two pipelines;

[0008] The left docking assembly and the right docking assembly each include a chassis body, an extrusion alignment assembly, a pressing drive assembly and a support adjustment assembly;

[0009] The base frame body is fixedly connected to the opposite sides of the left connecting frame and the right connecting frame. The support adjustment assembly is arranged on the top of the base frame body so that the pipeline can be supported. The heights of the support adjustment assemblies are equal. The extrusion alignment assembly is arranged on the side of the base frame body away from the left connecting frame and the right connecting frame so that the extrusion alignment assembly can push the pipeline on the support adjustment assembly to move. The clamping drive assembly is arranged on the other two sides of the base frame body so that the clamping drive assembly can squeeze the moved pipeline and drive the pipeline to rotate.

[0010] Furthermore, the support adjustment assembly includes two groups of adjusting hydraulic cylinders, two supporting seats, two supporting shafts and two supporting rollers; the adjusting hydraulic cylinders are installed on the top of the base frame through the cylinder base, and the two groups of adjusting hydraulic cylinders are respectively located on both sides of the base frame; one end of the telescopic part of the adjusting hydraulic cylinder is fixedly connected to the support seat, and the two supporting seats are rotatably connected to the two supporting shafts through a number of bearing seats, and the outer sides of the two supporting shafts are fixedly connected to two symmetrically distributed supporting rollers, and the outer sides of the supporting rollers are provided with a number of mounting grooves 2, and steel balls are rollingly connected in the mounting grooves 2, and arc grooves for avoiding the steel pipes are provided on the tops of the two support seats.

[0011] Furthermore, a plurality of slots are formed on the top of the base frame, and a plurality of protrusions corresponding to the slots are integrally formed on the bottom of the support seat, and the protrusions are plugged into the slots.

[0012] As a further solution of the present invention, each group of adjusting hydraulic cylinders has two adjusting hydraulic cylinders, and the two adjusting hydraulic cylinders are respectively located on both sides of the support seat.

[0013] Further, the extrusion alignment assembly includes a mounting frame, and the mounting frame is fixedly connected to a side of the base frame body away from the left connecting frame and the right connecting frame;

[0014] Both sides of the top of the mounting frame are fixedly connected with transverse guide rails, and the outer sides of the transverse guide rails are slidably connected with slide platforms;

[0015] The top of the slide is fixedly connected with an extrusion frame, the top of the extrusion frame is fixedly connected with a mounting sleeve, and an extrusion shaft is slidably connected in the mounting sleeve;

[0016] One end of the extrusion shaft is fixedly connected to an extrusion disk, and one side of the extrusion disk is provided with a plurality of mounting grooves equidistantly distributed in an annular shape, and an extrusion roller is rotatably connected in each of the mounting grooves; the other end of the extrusion shaft is fixedly connected to a mounting plate; a tension spring is sleeved on the outer side of the extrusion shaft, and the two ends of the tension spring are respectively fixed to the mounting plate and the mounting sleeve, and a limit component for limiting the movement of the extrusion shaft is provided in the mounting sleeve.

[0017] Furthermore, the mounting frame is provided with a power component for driving the extrusion frame to move through the slide, which includes an extrusion motor, and the extrusion motor is fixed to the side of the mounting frame away from the bottom frame body through a motor base; the top of the mounting frame is located at the center of the two transverse guide rails and is rotatably connected to a threaded rod through a bearing seat, and the output shaft of the extrusion motor is fixed to the threaded rod through a coupling, and the bottom of the extrusion frame is fixedly connected to a threaded sleeve, and the threaded rod passes through the threaded sleeve and is threadedly connected to the threaded sleeve.

[0018] Furthermore, the limit assembly includes a positioning groove, which is opened at the top of the mounting sleeve and is connected to the inside of the mounting sleeve. A positioning pin is slidably connected in the positioning groove, and a socket that is plugged into the positioning pin is opened at the top of the extrusion shaft directly below the positioning groove.

[0019] Furthermore, the clamping drive assembly includes two side frames, and the two side frames are respectively fixedly connected to the middle positions of the two sides of the bottom frame;

[0020] The top of the side frame body is fixedly connected to a guide frame, and a slide seat is slidably connected to the guide frame through a key slot; a clamping hydraulic cylinder is fixed to the top of the side frame body through a cylinder base, and one end of the telescopic part of the clamping hydraulic cylinder extends into the guide frame and is fixed to the slide seat, and a mounting opening is opened on the top of the slide seat, and a support rod is rotatably connected to the mounting opening through a pin shaft;

[0021] The inner walls of both sides of the bottom frame body are fixedly connected to mounting seats aligned with the clamping hydraulic cylinder, and the mounting seats are rotatably connected to a rotating frame via a pin shaft, and the support rod is rotatably connected to the rotating frame via a pin shaft; the top of the rotating frame is fixedly connected to the mounting frame body, and a rotating pressure shaft is rotatably connected to the mounting frame body via a bearing, and two symmetrically distributed rotating pressure rollers are fixedly connected to the outer side of the rotating pressure shaft, and a synchronous pulley 1 is keyed to the position at the center of the rotating pressure shaft, and a driving motor is fixed to one side of the mounting frame body through a motor base, and one end of the driving motor output shaft is keyed to a synchronous pulley 2, and the synchronous pulley 1 and the synchronous pulley 2 are connected by a belt transmission.

[0022] Furthermore, a rubber sleeve is fixedly connected to the outer side of the rotating pressure roller, and the rubber sleeve is equal to the length of the rotating pressure roller.

[0023] Compared with the prior art, the advantages and effects of this application are as follows:

[0024] 1. The present invention places two pipes with the same specifications on the supporting and adjusting assemblies on the left docking assembly and the right docking assembly respectively through the setting of the supporting and adjusting assemblies. Since the supporting and adjusting assemblies on the left docking assembly and the right docking assembly have the same structure and work synchronously, placing the pipes on the supporting and adjusting assemblies on the left docking assembly and the right docking assembly can make the center lines of the two pipes completely overlap, and then the two pipes can be pushed to move toward each other synchronously through the extrusion alignment assembly so that the two pipes can be docked, which can avoid problems such as misalignment and uneven gaps during the docking process, improve the welding effect and welding strength of the pipes, and do not require manual docking by the staff; and since the center lines of the two pipes completely overlap, the staff does not need to adjust the position of the pipes, which reduces labor intensity, saves engineering costs, speeds up work progress, and improves the efficiency of pipe welding.

[0025] 2. The present invention arranges a tension spring and a limit assembly. When the extrusion disk on the extrusion alignment assembly contacts the pipe and the pipe is extruded, the extrusion disk will first push the extrusion shaft to move, and the extrusion shaft will stretch the tension spring. Then, after the extrusion shaft stops moving through the limit assembly, it pushes the pipe to move, so that the extrusion disk and the pipe are in flexible contact, avoiding collision between the extrusion disk and the pipe and damaging the pipe.

[0026] 3. When the compression drive assembly of the present invention drives the pipeline to rotate, the pipeline will drive the extrusion roller to rotate in the installation groove 1 through friction, thereby avoiding wear caused by friction between the pipeline and the extrusion disk when rotating, and improving the use effect of the docking device.

[0027] 4. The compression drive assembly of the present invention can press and compress the butted pipes and drive the pipes to rotate, thereby making it easier for workers to weld the two pipes along the butt joint of the two pipes, thereby improving the convenience of using the butt joint device.

[0028] 5. In the present invention, when the extrusion alignment assembly pushes the steel pipe to move, the steel pipe causes the steel ball to roll in the second installation groove, thereby avoiding wear caused by friction with the support roller when the pipe moves, thereby improving the safety of the pipe movement.

[0029] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0030] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0032] in:

[0033] Figure 1 This is a schematic diagram of the front three-dimensional structure of an auxiliary butt joint device for pipeline welding proposed by the present invention;

[0034] Figure 2 This is a structural schematic diagram of a left docking assembly of an auxiliary docking device for pipeline welding proposed by the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of a support and adjustment component of an auxiliary butt joint device for pipeline welding proposed by the present invention;

[0036] Figure 4 This is a schematic diagram of the structure of a clamping drive assembly of an auxiliary butt joint device for pipeline welding proposed by the present invention;

[0037] Figure 5 This is a schematic diagram of the structure of an extrusion alignment component of an auxiliary butt joint device for pipeline welding proposed by the present invention;

[0038] Figure 6 A partial cross-sectional structural schematic diagram of an extrusion alignment assembly of an auxiliary butt joint device for pipeline welding proposed by the present invention;

[0039] Figure 7 This is a schematic diagram of the structure of an extrusion plate of an auxiliary butt joint device for pipeline welding proposed by the present invention.

[0040] In the figure: 1-left docking assembly; 2-left connecting frame; 3-right connecting frame; 4-right docking assembly; 5-extrusion alignment assembly; 6-pressing drive assembly; 7-support adjustment assembly; 8-base frame; 501-extrusion plate; 502-extrusion shaft; 503-mounting sleeve; 504-extrusion frame; 505-threaded rod; 506-extrusion motor; 507-lateral guide rail; 508-threaded sleeve; 509-slide; 510-mounting plate; 511-tension spring; 512-positioning slot; 513-positioning pin; 514-mounting slot 1; 515-squeezing roller; 601-side frame; 602-pressing hydraulic cylinder; 603, guide frame; 604-slide seat; 605-support rod; 606-rotating frame; 607-mounting frame; 608-rubber sleeve; 609-rotating pressure roller; 610-synchronous pulley one; 611-synchronous pulley two; 612-driving motor; 613-rotating pressure shaft; 701-support shaft; 702-support roller; 703-steel ball; 704-mounting slot two; 705-support seat; 706-slot; 707-adjusting hydraulic cylinder. DETAILED DESCRIPTION

[0041] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0042] It should be understood that the references to "one embodiment" or "this embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "one embodiment" or "this embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0043] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0044] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0045] The term "at least one" in this article is merely a description of the association relationship of associated objects, indicating that there may be three relationships. For example, at least one of A and B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0046] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0047] Example 1

[0048] This embodiment introduces an auxiliary butt joint device for pipe welding. The front side stereoscopic structure diagram is shown in FIG. Figure 1 The device includes a left connecting frame 2 and a right connecting frame 3. The schematic diagram of the left docking assembly is shown in Figure 2 .

[0049] The left connecting frame 2 and the right connecting frame 3 are fixed in a horizontal state, and the left connecting frame 2 and the right connecting frame 3 are respectively provided with a left docking assembly 1 and a right docking assembly 4 for docking two pipelines on opposite sides thereof;

[0050] The left docking assembly 1 and the right docking assembly 4 both include a chassis body 8, an extrusion alignment assembly 5, a compression drive assembly 6 and a support adjustment assembly 7. The chassis body 8 is fixed to the opposite sides of the left connecting frame 2 and the right connecting frame 3 by bolts; the support adjustment assembly 7 is arranged on the top of the chassis body 8 for the purpose of supporting the pipeline, and the heights of the two support adjustment assemblies 7 are equal; the extrusion alignment assembly 5 is arranged on the side of the chassis body 8 away from the left connecting frame 2 and the right connecting frame 3, so that the extrusion alignment assembly 5 pushes the pipeline on the support adjustment assembly 7 to move; the compression drive assembly 6 is arranged on the other two sides of the chassis body 8, so that the compression drive assembly 6 squeezes the pipeline that has been moved and drives the pipeline to rotate.

[0051] The support adjustment assembly 7 includes two groups of adjusting hydraulic cylinders 707, two support seats 705, two support shafts 701 and two support rollers 702; the adjusting hydraulic cylinders 707 are installed on the top of the base frame 8 through the cylinder base, and the two groups of adjusting hydraulic cylinders 707 are respectively located on both sides of the base frame 8; one end of the telescopic part of the adjusting hydraulic cylinder 707 is fixedly connected to the support seat 705, and the two support seats 705 are rotatably connected to the two support shafts 701 through a number of bearing seats, and the outer sides of the two support shafts 701 are fixedly connected to two symmetrically distributed support rollers 702, and the outer sides of the support rollers 702 are provided with a number of mounting grooves 704, and steel balls 703 are rollingly connected in the mounting grooves 704, and arc grooves are provided on the tops of the two support seats 705.

[0052] Preferably, a plurality of slots 706 are formed on the top of the base frame 8 , and a plurality of protrusions corresponding to the slots 706 are integrally formed on the bottom of the support seat 705 , and the protrusions are plugged into the slots 706 .

[0053] Preferably, each group of adjusting hydraulic cylinders 707 has two adjusting hydraulic cylinders 707 , and the two adjusting hydraulic cylinders 707 are respectively located on both sides of the support seat 705 .

[0054] Preferably, the extrusion alignment assembly 5 includes a mounting frame, and the mounting frame is fixedly connected to a side of the chassis body 8 away from the left connecting frame 2 and the right connecting frame 3;

[0055] Both sides of the top of the mounting frame are fixedly connected with transverse guide rails 507, and the outer sides of the transverse guide rails 507 are slidably connected with slides 509;

[0056] The top of the slide 509 is fixedly connected with an extrusion frame 504, the top of the extrusion frame 504 is fixedly connected with a mounting sleeve 503, and the mounting sleeve 503 is slidably connected with an extrusion shaft 502;

[0057] One end of the extrusion shaft 502 is fixedly connected to an extrusion disk 501, and one side of the extrusion disk 501 is provided with a plurality of annular mounting grooves 514 equidistantly distributed, and each of the mounting grooves 514 is rotatably connected with an extrusion roller 515; the other end of the extrusion shaft 502 is fixedly connected to a mounting plate 510; a tension spring 511 is sleeved on the outer side of the extrusion shaft 502, and both ends of the tension spring 511 are respectively fixed to the mounting plate 510 and the mounting sleeve 503, and a limit assembly is provided in the mounting sleeve 503.

[0058] Preferably, a power assembly is provided in the mounting frame, which includes an extrusion motor 506, and the extrusion motor 506 is fixed to the side of the mounting frame away from the base frame body 8 through a motor base; the top of the mounting frame is located at the center of the two transverse guide rails 507 and is rotatably connected to a threaded rod 505 through a bearing seat, and the output shaft of the extrusion motor 506 is fixed to the threaded rod 505 through a coupling, and the bottom of the extrusion frame body 504 is fixedly connected to a threaded sleeve 508, and the threaded rod 505 passes through the threaded sleeve 508 and is threadedly connected to the threaded sleeve 508.

[0059] Preferably, the limiting assembly includes a positioning groove 512, the positioning groove 512 is opened at the top of the mounting sleeve 503, and the positioning groove 512 is connected to the inside of the mounting sleeve 503, a positioning pin 513 is slidably connected in the positioning groove 512, and a socket connected to the positioning pin 513 is opened at the top of the extrusion shaft 502, which is located directly below the positioning groove 512.

[0060] Preferably, the pressing drive assembly 6 includes two side frame bodies 601, and the two side frame bodies 601 are respectively fixedly connected to the middle positions of the two sides of the bottom frame body 8;

[0061] The top of the side frame body 601 is fixedly connected with a guide frame 603, and a slide 604 is slidably connected in the guide frame 603 through a keyway; a clamping hydraulic cylinder 602 is fixed to the top of the side frame body 601 through a cylinder base, and one end of the telescopic part of the clamping hydraulic cylinder 602 extends into the guide frame 603 and is fixed to the slide 604. A mounting opening is opened on the top of the slide 604, and a support rod 605 is rotatably connected in the mounting opening through a pin shaft;

[0062] The inner walls on both sides of the base frame 8 are fixedly connected with mounting seats aligned with the clamping hydraulic cylinder 602, and a rotating frame 606 is rotatably connected to the mounting seat through a pin shaft, and the support rod 605 is rotatably connected to the rotating frame 606 through a pin shaft; the top of the rotating frame 606 is fixedly connected with a mounting frame body 607, and a rotating pressure shaft 613 is rotatably connected to the mounting frame body 607 through a bearing, and two symmetrically distributed rotating pressure rollers 609 are fixedly connected to the outer side of the rotating pressure shaft 613, and a synchronous pulley 1 610 is keyed to the position at the center of the rotating pressure shaft 613, and a driving motor 612 is fixed to one side of the mounting frame body 607 through a motor base, and one end of the output shaft of the driving motor 612 is keyed to a synchronous pulley 2 611, and the synchronous pulley 1 610 and the synchronous pulley 2 611 are connected by a belt drive.

[0063] Preferably, a rubber sleeve 608 is fixedly connected to the outer side of the rotating pressure roller 609 , and the rubber sleeve 608 is equal to the length of the rotating pressure roller 609 .

[0064] In this embodiment, two pipes are placed on the support and adjustment components 7 in the left docking component 1 and the right docking component 4 respectively.

[0065] The working principle of the auxiliary butt joint device for pipeline welding introduced in this embodiment is as follows:

[0066] When in use, first place one pipe between the two support shafts 701 on the left docking assembly 1, and use the support rollers 702 to support the pipe; then place another pipe between the two support shafts 701 on the right docking assembly 4, and use the support rollers 702 to support the pipe. Since the highest points of the support rollers 702 on the left docking assembly 1 and the right docking assembly 4 are flush, when the two pipes are supported and placed by the support rollers 702 on the left docking assembly 1 and the right docking assembly 4, the center lines of the two pipes will completely overlap.

[0067] Then, the extrusion motor 506 in the left docking assembly 1 and the right docking assembly 4 is started to rotate synchronously, and the extrusion motor 506 drives the threaded rod 505 to rotate. The threaded rod 505, through the threaded engagement with the threaded sleeve 508, drives the extrusion frame 504 to move horizontally along the transverse guide rail 507 through the slide 509 through the threaded sleeve 508, and the extrusion frame 504 drives the installation sleeve 503 to move, and the installation sleeve 503 drives the installation plate 510 to move through the tension spring 511, and the installation plate 510 drives the extrusion shaft 502 to move, and the extrusion shaft 502 drives the extrusion plate 501 to move. When the extrusion plate 501 moves to the extrusion roller 515 and contacts the pipeline, the installation sleeve 503 moves outside the extrusion shaft 502 under the force of the pipeline, and the installation sleeve 503 stretches the tension spring 511. When the installation sleeve 503 moves to the positioning pin 513 to stop the installation sleeve 503, the installation sleeve 503 cannot move on the extrusion shaft 502. At this time, the extrusion disc 501 pushes the pipe to move and pass through the arc groove of the support seat 705. Since the movement speed of the extrusion discs 501 in the left docking assembly 1 and the right docking assembly 4 is equal, the two pipes will move towards each other and dock the two pipes, thereby avoiding problems such as misalignment and uneven gaps between the two pipes during docking. At the same time, the staff does not need to dock manually or adjust the position of the pipes.

[0068] After the two pipes are butt-jointed, the pressing hydraulic cylinders 602 on the left butt-jointing assembly 1 and the right butt-jointing assembly 4 are started to contract synchronously, and the pressing hydraulic cylinders 602 drive the slide 604 to move in the guide frame 603. During the movement, the slide 604 pushes the rotating frame 606 to rotate toward the pipe through the support rod 605, and the support rod 605 rotates between the slide 604 and the rotating frame 606. During the rotation, the rotating frame 606 drives the mounting frame 607 to move, and the mounting frame 607 drives the rotating pressing shaft 613 to move, and the rotating pressing shaft 613 drives the rotating pressing roller 609 to move, so that the rotating pressing roller 609 squeezes the pipe, thereby preventing the pipe from moving and improving the stability of pipe welding. At the same time, the drive motor 612 in the left docking component 1 and the right docking component 4 can be started to rotate synchronously, the drive motor 612 will drive the synchronous pulley 2 611 to rotate, the synchronous pulley 2 611 will drive the synchronous pulley 1 610 to rotate through the belt, the synchronous pulley 1 610 will drive the rotating pressure shaft 613 to rotate, the rotating pressure shaft 613 will drive the rotating pressure roller 609 to rotate, the rotating pressure roller 609 will drive the pipeline to rotate through friction, so that the two docked pipelines rotate synchronously, which is convenient for the staff to weld the two pipelines along the docking point of the two pipelines, thereby improving the convenience of using the docking device.

[0069] The technical effect achieved by this embodiment is: since the heights of the support adjustment components 7 in the left docking component 1 and the right docking component 4 are equal, the center lines of the two pipes completely overlap; then the two pipes are pushed to move synchronously toward each other by the extrusion alignment component 5, so that the two pipes are docked, thereby avoiding problems such as misalignment and uneven gaps between the two pipes during the docking process, improving the welding effect and welding strength of the pipes, and the process does not require manual docking by the staff. In addition, since the center lines of the two pipes completely overlap, the staff does not need to adjust the position of the pipes, which reduces labor intensity, saves engineering costs, speeds up work progress, and improves the efficiency of pipe welding.

[0070] Example 2

[0071] Based on Example 1, this example introduces a support adjustment component 7 of an auxiliary butt joint device for pipeline welding. Figure 3 .

[0072] The support adjustment assembly 7 includes two groups of adjustment hydraulic cylinders 707 , both of which are installed on the top of the bottom frame 8 through cylinder bases, and the two groups of adjustment hydraulic cylinders 707 are respectively located on both sides of the bottom frame 8 .

[0073] One end of the telescopic part of the two sets of adjusting hydraulic cylinders 707 is fixed with a support seat 705 by bolts, and two support shafts 701 are rotatably connected between the two support seats 705 through multiple bearing seats, and two symmetrically distributed support rollers 702 are fixed by bolts on the outer sides of the two support shafts 701. When placing the pipeline, the pipeline is placed between the two support shafts 701, so that the support rollers 702 on the two support shafts 701 support the pipeline, thereby placing the pipeline.

[0074] In this embodiment, arc grooves for avoiding the steel pipes are formed on the tops of the two support seats 705, and a plurality of slots 706 are formed on the top of the base frame 8 directly below the support seats 705. A plurality of protrusions corresponding to the slots 706 are integrally formed on the bottom of the support seats 705, and the protrusions are plugged into the slots 706.

[0075] Preferably, the number of the two groups of adjusting hydraulic cylinders 707 is two, and the two adjusting hydraulic cylinders 707 are respectively located on both sides of the support seat 705. The hydraulic power of the adjusting hydraulic cylinders 707 in the left docking assembly 1 and the right docking assembly 4 is equal, so that the support seat 705 moves synchronously.

[0076] In this embodiment, when the height of the pipeline needs to be changed, the adjustment hydraulic cylinder 707 in the left docking assembly 1 and the right docking assembly 4 is started to extend synchronously, and the adjustment hydraulic cylinder 707 pushes the multiple support seats 705 to move upward synchronously, and the support seats 705 will drive the support shaft 701 to move, and the support shaft 701 will drive the support roller 702 to move, so that the support roller 702 lifts the pipeline and moves it upward to change the height of the pipeline. Since the adjustment hydraulic cylinder 707 in the left docking assembly 1 and the right docking assembly 4 is extended synchronously, the pipelines in the left docking assembly 1 and the right docking assembly 4 can be moved upward synchronously, thereby ensuring that the centers of the two pipelines always overlap, and the staff does not need to readjust after changing the height of the pipeline.

[0077] In the technical solution of this embodiment, in order to solve the technical problem of wear of the pipeline during rotation and movement, a plurality of mounting grooves 704 are opened on the outer side of the support roller 702, and steel balls 703 are rollingly connected in the plurality of mounting grooves 704. When the pipeline moves on the support roller 702, the steel balls 703 will roll in the mounting grooves 704, thereby avoiding wear caused by friction with the support roller 702 when the pipeline moves, thereby improving the safety of the pipeline movement.

[0078] The technical effect achieved by this embodiment is: through the setting of steel balls, when the extrusion alignment component pushes the steel pipe to move, the steel pipe will cause the steel balls to roll in the second installation groove, thereby avoiding friction and wear between the pipeline and the support roller when the pipeline moves, thereby improving the safety of pipeline movement.

[0079] Example 3

[0080] Based on the above embodiment, this embodiment introduces an extrusion alignment assembly 5 of an auxiliary butt joint device for pipe welding. Figure 5 , see the partial section view Figure 6 .

[0081] The extrusion alignment assembly 5 includes a mounting frame, which is fixed to a side of the chassis body 8 away from the left connecting frame 2 and the right connecting frame 3 by bolts.

[0082] Transverse guide rails 507 are fixed to both sides of the top of the mounting frame by bolts, and two slides 509 are slidably connected to the outer sides of the two transverse guide rails 507. The tops of the multiple slides 509 are fixed to the extrusion frame body 504 by bolts.

[0083] The mounting frame is provided with a power assembly for driving the extrusion frame 504 to move via the slide 509;

[0084] The top of the extrusion frame 504 is welded with a mounting sleeve 503, and an extrusion shaft 502 is slidably connected inside the mounting sleeve 503. An extrusion plate 501 is fixed to one end of the extrusion shaft 502 by bolts. The structural diagram of the extrusion plate 501 is shown in FIG. Figure 7 A plurality of mounting grooves 514 equidistantly distributed in an annular shape are provided on one side of the extrusion disk 501, and extrusion rollers 515 are rotatably connected in the plurality of mounting grooves 514; a mounting plate 510 is welded to the other end of the extrusion shaft 502; a tension spring 511 is sleeved on the outer side of the extrusion shaft 502 at a position outside the mounting sleeve 503, and the two ends of the tension spring 511 are respectively fixed to the mounting plate 510 and the mounting sleeve 503, and a limit assembly for limiting the movement of the extrusion shaft 502 is provided in the mounting sleeve 503;

[0085] The power assembly includes an extrusion motor 506, which is fixed to one side of the mounting frame through a motor base. The top of the mounting frame is located at the center of two transverse guide rails 507 and is rotatably connected to a threaded rod 505 through a bearing seat. The output shaft of the extrusion motor 506 is fixed to the threaded rod 505 through a coupling. The bottom of the extrusion frame body 504 is fixed to a threaded sleeve 508 by bolts, and the threaded rod 505 passes through the threaded sleeve 508 and is threadedly connected to the threaded sleeve 508.

[0086] The limiting assembly includes a positioning groove 512 , which is provided at the top of the installation sleeve 503 and communicated with the interior of the installation sleeve 503 . A positioning pin 513 is slidably connected in the positioning groove 512 .

[0087] A socket is provided at the top of the extrusion shaft 502, which is located directly below the positioning groove 512, and the positioning pin 513 is plugged into the socket. When it is necessary to push the two pipes to move for docking, the extrusion motors 506 in the left docking assembly 1 and the right docking assembly 4 are started to rotate synchronously, and the extrusion motors 506 drive the threaded rod 505 to rotate, and the threaded rod 505 is engaged with the threaded sleeve 508, and the threaded sleeve 508 drives the extrusion frame 504 to move horizontally along the transverse guide rail 507 through the slide 509, and the extrusion frame 504 drives the installation sleeve 503 to move, and the installation sleeve 503 drives the installation plate 510 to move through the tension spring 511, and the installation plate 510 drives the extrusion shaft 502 to move, and the extrusion shaft 502 drives the extrusion disk 501 to move. When the extrusion plate 501 moves to the extrusion roller 515 and contacts the pipeline, the installation sleeve 503 will move outside the extrusion shaft 502 under the force of the pipeline, and the installation sleeve 503 will stretch the tension spring 511; when the installation sleeve 503 moves to the positioning pin 513 to resist and limit the installation sleeve 503, the installation sleeve 503 cannot move on the extrusion shaft 502. At this time, the extrusion plate 501 pushes the pipeline to move and pass through the arc groove of the support seat 705, thereby achieving flexible contact between the extrusion plate 501 and the pipeline, avoiding collision between the extrusion plate 501 and the pipeline and damaging the pipeline. Since the movement speeds of the extrusion plates 501 in the left docking assembly 1 and the right docking assembly 4 are equal, the two pipelines will move toward each other synchronously and dock the two pipelines.

[0088] In this embodiment, when the pipe is rotating, since the pipe is in contact with the squeezing roller 515 on the squeezing disk 501, the pipe will drive the squeezing roller 515 to rotate in the installation groove 514 through friction, thereby avoiding friction and wear between the pipe and the squeezing disk 501 when the pipe rotates, thereby improving the use effect of the docking device; at the same time, when the height of the pipe changes and does not coincide with the center line of the squeezing disk 501, the pipe will always be in contact with the squeezing roller 515, so under the action of the squeezing roller 515, the pipe can still be prevented from being worn during the rotation process, which is convenient for adapting to pipes of different heights for use.

[0089] The technical effect achieved by this embodiment is: through the setting of the tension spring and the limit assembly, when the extrusion disk on the extrusion alignment assembly contacts the pipeline to extrude the pipeline, the extrusion disk will first push the extrusion shaft to move, and the extrusion shaft will stretch the tension spring, and then the extrusion shaft will stop moving through the limit assembly, and the extrusion disk will push the pipeline to move, so that the extrusion disk and the pipeline are in flexible contact, avoiding collision between the extrusion disk and the pipeline and damaging the pipeline. In addition, through the setting of the extrusion roller in this embodiment, when the compression drive assembly drives the pipeline to rotate, the pipeline will drive the extrusion roller to rotate in the installation groove 1 through friction, thereby avoiding friction and wear between the pipeline and the extrusion disk when the pipeline rotates, and improving the use effect of the docking device.

[0090] Example 4

[0091] Based on the above embodiment, this embodiment introduces a clamping drive assembly 6 of an auxiliary butt joint device for pipeline welding. Figure 4 .

[0092] The clamping drive assembly 6 includes two side frame bodies 601, and the two side frame bodies 601 are respectively fixed to the center positions on both sides of the bottom frame body 8 by bolts.

[0093] The tops of the two side frames 601 are fixed with guide frames 603 by bolts, and the guide frames 603 are slidably connected with slide seats 604 through key slots; the tops of the two side frames 601 are fixed with clamping hydraulic cylinders 602 through cylinder bases, and one end of the telescopic part of the clamping hydraulic cylinder 602 extends into the guide frames 603 and is fixed to the slide seats 604.

[0094] The top of the slide seat 604 is provided with a mounting opening, and a support rod 605 is rotatably connected to the mounting opening via a pin shaft.

[0095] The inner walls on both sides of the bottom frame body 8 are fixed with mounting seats aligned with the clamping hydraulic cylinder 602 by bolts, and a rotating frame 606 is rotatably connected to the mounting seat by a pin shaft, and the support rod 605 is rotatably connected to the rotating frame 606 by a pin shaft.

[0096] A mounting frame body 607 is welded on the top of the rotating frame 606, and a rotating pressing shaft 613 is rotatably connected inside the mounting frame body 607 via a bearing.

[0097] Two symmetrically distributed rotating pressure rollers 609 are fixed to the outer side of the rotating pressure shaft 613 by bolts, and a synchronous pulley 1 610 is keyed to the position at the center of the two rotating pressure rollers 609 on the outer side of the rotating pressure shaft 613 .

[0098] A driving motor 612 is fixed to one side of the mounting frame 607 via a motor base, and one end of the output shaft of the driving motor 612 is key-connected to a synchronous pulley 2 611 .

[0099] The synchronous pulley 1 610 and the synchronous pulley 2 611 are connected via a belt transmission.

[0100] In this embodiment, a rubber sleeve 608 is bonded to the outer side of the rotating pressure roller 609, and the rubber sleeve 608 is equal to the length of the rotating pressure roller 609. The rubber sleeve 608 can increase the friction between the rotating pressure roller 609 and the pipeline, so that the rotating pressure roller 609 can better drive the pipeline to rotate; the power of the clamping hydraulic cylinder 602 in the left docking component 1 and the right docking component 4 is equal, so that the multiple rotating frames 606 rotate synchronously.

[0101] During use, when the two pipes are butt-jointed, the pressing hydraulic cylinders 602 on the left butt-jointing assembly 1 and the right butt-jointing assembly 4 are started to contract synchronously, and the pressing hydraulic cylinders 602 drive the slide 604 to move in the guide frame 603; during the movement of the slide 604, the support rod 605 pushes the rotating frame 606 to rotate toward the pipe, and the support rod 605 rotates between the slide 604 and the rotating frame 606. During the rotation, the rotating frame 606 drives the mounting frame 607 to move, the mounting frame 607 drives the rotating pressing shaft 613 to move, and the rotating pressing shaft 613 drives the rotating pressing roller 609 to move, so that the rotating pressing roller 609 squeezes the pipe, thereby preventing the pipe from moving and improving the stability of pipe welding. At the same time, the drive motor 612 in the left docking component 1 and the right docking component 4 can be started to rotate synchronously, the drive motor 612 will drive the synchronous pulley 2 611 to rotate, the synchronous pulley 2 611 will drive the synchronous pulley 1 610 to rotate through the belt, the synchronous pulley 1 610 will drive the rotating pressure shaft 613 to rotate, the rotating pressure shaft 613 will drive the rotating pressure roller 609 to rotate, the rotating pressure roller 609 will drive the pipeline to rotate through friction, so that the two docked pipelines rotate synchronously, which is convenient for the staff to weld the two pipelines along the docking point of the two pipelines, thereby improving the convenience of using the docking device.

[0102] The technical effect achieved by this embodiment is that the clamping drive assembly can press and tighten the butted pipes, and at the same time drive the pipes to rotate, thereby facilitating the workers to weld the two pipes along the butt joint of the two pipes, thereby improving the convenience of using the butt joint device.

[0103] The above description is only the preferred embodiment of the present invention, which does not limit the protection scope of the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Within the spirit and principle of the present invention, any change, modification, replacement, integration and parameter change of these embodiments by conventional substitution or capable of achieving the same function without departing from the principle and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. An auxiliary butt joint device for pipeline welding, characterized in that: It comprises a left connecting component (1), a left connecting frame (2), a right connecting frame (3), and a right connecting component (4), wherein the left docking component (1) and the right docking component (4) are respectively arranged on opposite sides of the left connecting frame (2) and the right connecting frame (3); The left docking assembly (1) and the right docking assembly (4) both comprise a base frame (8), an extrusion alignment assembly (5), a pressing drive assembly (6) and a support adjustment assembly (7); The base frame (8) is fixedly connected to the opposite sides of the left connecting frame (2) and the right connecting frame (3); the support adjustment assembly (7) is arranged on the top of the base frame (8); the heights of the support adjustment assemblies (7) are equal; the extrusion alignment assembly (5) is arranged on the side of the base frame (8) away from the left connecting frame (2) and the right connecting frame (3); and the clamping drive assembly (6) is arranged on the other two sides of the base frame (8).

2. The auxiliary butt joint device for pipeline welding according to claim 1, characterized in that: The support adjustment assembly (7) comprises two groups of adjustment hydraulic cylinders (707), two support seats (705), two support shafts (701) and two support rollers (702); the adjustment hydraulic cylinders (707) are installed on the top of the base frame (8) through the cylinder base, and the two groups of adjustment hydraulic cylinders (707) are respectively located on both sides of the base frame (8); one end of the telescopic part of the adjustment hydraulic cylinder (707) is fixedly connected to the support seat (705), the two support seats (705) are rotatably connected to the two support shafts (701) through a plurality of bearing seats, the outer sides of the two support shafts (701) are fixedly connected to two symmetrically distributed support rollers (702), the outer sides of the support rollers (702) are provided with a plurality of mounting grooves (704), the mounting grooves (704) are rollingly connected with steel balls (703), and the tops of the two support seats (705) are provided with arc grooves.

3. The auxiliary butt joint device for pipeline welding according to claim 2, characterized in that: The top of the base frame (8) is provided with a plurality of slots (706), and the bottom of the support seat (705) is integrally formed with a plurality of protrusions corresponding to the slots (706), and the protrusions are plugged into the slots (706).

4. The auxiliary butt joint device for pipeline welding according to claim 3, characterized in that: Each group of adjusting hydraulic cylinders (707) has two adjusting hydraulic cylinders (707), and the two adjusting hydraulic cylinders (707) are respectively located on both sides of the support seat (705).

5. The auxiliary butt joint device for pipeline welding according to claim 1, characterized in that: The extrusion alignment assembly (5) comprises a mounting frame, and the mounting frame is fixedly connected to a side of the base frame body (8) away from the left connecting frame (2) and the right connecting frame (3); Both sides of the top of the mounting frame are fixedly connected with transverse guide rails (507), and the outer sides of the transverse guide rails (507) are slidably connected with slide platforms (509); The top of the slide (509) is fixedly connected to an extrusion frame (504), the top of the extrusion frame (504) is fixedly connected to a mounting sleeve (503), and an extrusion shaft (502) is slidably connected inside the mounting sleeve (503); One end of the extrusion shaft (502) is fixedly connected to an extrusion disk (501), and one side of the extrusion disk (501) is provided with a plurality of mounting grooves (514) that are equidistantly distributed in an annular shape, and each mounting groove (514) is rotatably connected with an extrusion roller (515); the other end of the extrusion shaft (502) is fixedly connected to a mounting plate (510); a tension spring (511) is sleeved on the outer side of the extrusion shaft (502), and the two ends of the tension spring (511) are respectively fixed to the mounting plate (510) and the mounting sleeve (503), and a limit assembly is provided in the mounting sleeve (503).

6. The auxiliary butt joint device for pipeline welding according to claim 5, characterized in that: The mounting frame is provided with a power assembly, which includes an extrusion motor (506), and the extrusion motor (506) is fixed to a side of the mounting frame away from the base frame body (8) through a motor base; the top of the mounting frame is located at the center of two transverse guide rails (507) and is rotatably connected to a threaded rod (505) through a bearing seat, and the output shaft of the extrusion motor (506) is fixed to the threaded rod (505) through a coupling, and the bottom of the extrusion frame body (504) is fixedly connected to a threaded sleeve (508), and the threaded rod (505) passes through the threaded sleeve (508) and is threadedly connected to the threaded sleeve (508).

7. The auxiliary butt joint device for pipeline welding according to claim 5, characterized in that: The limiting assembly comprises a positioning groove (512), wherein the positioning groove (512) is provided at the top of the mounting sleeve (503), and the positioning groove (512) is communicated with the inside of the mounting sleeve (503), a positioning pin (513) is slidably connected in the positioning groove (512), and a socket for plugging into the positioning pin (513) is provided at the top of the extrusion shaft (502) directly below the positioning groove (512).

8. The auxiliary butt joint device for pipeline welding according to claim 1, characterized in that: The pressing drive assembly (6) comprises two side frame bodies (601), and the two side frame bodies (601) are respectively fixedly connected to the middle positions of the two sides of the bottom frame body (8); The top of the side frame body (601) is fixedly connected to a guide frame (603), and a slide seat (604) is slidably connected to the guide frame (603) via a keyway; a clamping hydraulic cylinder (602) is fixed to the top of the side frame body (601) via a cylinder base, and one end of the telescopic part of the clamping hydraulic cylinder (602) extends into the guide frame (603) and is fixed to the slide seat (604); a mounting opening is provided at the top of the slide seat (604), and a support rod (605) is rotatably connected to the mounting opening via a pin shaft; The inner walls on both sides of the bottom frame body (8) are fixedly connected with mounting seats aligned with the clamping hydraulic cylinder (602), and a rotating frame (606) is rotatably connected to the mounting seat via a pin shaft, and the support rod (605) is rotatably connected to the rotating frame (606) via a pin shaft; the top of the rotating frame (606) is fixedly connected with a mounting frame body (607), and a rotating pressure shaft (613) is rotatably connected to the mounting frame body (607) via a bearing, and the outer side of the rotating pressure shaft (613) is fixedly connected with two symmetrically distributed rotating pressure rollers (609), and a synchronous pulley 1 (610) is keyed at the center of the rotating pressure shaft (613); a driving motor (612) is fixedly connected to one side of the mounting frame body (607) via a motor base, and one end of the output shaft of the driving motor (612) is keyed to a synchronous pulley 2 (611), and the synchronous pulley 1 (610) and the synchronous pulley 2 (611) are connected via a belt transmission.

9. The auxiliary butt joint device for pipeline welding according to claim 8, characterized in that: A rubber sleeve (608) is fixedly connected to the outer side of the rotating pressure roller (609), and the rubber sleeve (608) and the rotating pressure roller (609) are of equal length.

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