Auxiliary device for pipeline assembly welding

Abstract

The utility model relates to an auxiliary device, belongs to the technical field of pipeline assembly welding, and particularly relates to an auxiliary device for pipeline assembly welding, which comprises a bottom frame, a fixing frame is fixed on the upper side of the bottom frame, a fixing frame is arranged on the inner side of the fixing frame, and a first threaded rod is rotatably connected to the inner side of the fixing frame through threads in a penetrating manner; the two second threaded rods are rotated respectively to drive the multiple sliding blocks to move relatively, then the multiple supporting rollers move synchronously, pipelines of different sizes can be supported, the rotating disc is held to rotate, the first threaded rod fixed to the rotating disc is driven to rotate, and the first threaded rod rotates and moves through threads. Finally, the fixed frame and the movable wheel at the lower end are driven to move downwards, the tilted welding end of the pipeline is pushed to be horizontal, and operation is easy; the problems that in the prior art, pipelines of different sizes cannot be supported, and it cannot be guaranteed that two pipelines are welded on the same axis are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline group welding, in particular to an auxiliary device for pipeline group welding. Background Art

[0002] With the continuous development of modern welding technology, the construction, expansion and renovation of infrastructure such as municipal pipelines and long-distance pipelines, the increase of large pipelines such as the West-East Gas Transmission and the Sichuan-East Gas Transmission, and the continuous development of trenchless construction technology, domestic welding construction technology has developed rapidly. The process of pipeline assembly welding mainly includes pipeline assembly operations and pipeline welding operations.

[0003] The prior art does not have a structure for supporting and quickly assembling pipes of different sizes when in use, so that when supporting pipes, the prior art can mostly only support pipes of a single size. At the same time, it occupies a large space during the pipe assembly process and can only assemble pipes of a single size. If pipes of different sizes are assembled, the accuracy will be reduced, resulting in the pipes being unable to maintain the same straight line after welding, which is inconvenient to use. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes an auxiliary device for welding of pipeline assemblies, which drives multiple sliders to move relative to each other by rotating two second threaded rods respectively, and then multiple supporting rollers move synchronously, so as to support pipelines of different sizes. By holding the turntable and rotating it, the first threaded rod fixed thereto is driven to rotate. The first threaded rod rotates and moves through the thread, and finally drives the fixed frame and movable wheel at its lower end to move downward, so as to push the raised welding end of the pipeline to make it horizontal, and the operation is simple.

[0005] The technical solution to achieve the purpose of the utility model is: an auxiliary device for welding of pipe groups, including a base frame, a fixed frame is fixed on the upper side of the base frame, a fixed frame is arranged on the inner side of the fixed frame, and a first threaded rod is rotatably connected to the inner side of the fixed frame through a thread, the lower side of the first threaded rod is rotatably connected to the fixed frame, and movable wheels are movably arranged at the four corners of the lower side of the fixed frame, and also includes: a supporting mechanism, which is arranged on the inner side of the base frame; the supporting mechanism includes two second threaded rods symmetrically rotatably connected to the inner side of the base frame, and the outer sides of the two second threaded rods are symmetrically rotatably connected to two sliders through threads, and the upper sides of multiple sliders are movably arranged with supporting rollers.

[0006] In some embodiments, the inner sides of the plurality of sliding blocks are each provided with a thread groove matched with the two second threaded rods.

[0007] In some embodiments, a turntable is fixed to the upper end of the first threaded rod.

[0008] In some embodiments, a reinforcement plate is fixed to the inner side of the base frame.

[0009] In some embodiments, two slide bars are symmetrically penetrated and slidably connected to the inner sides of two slide blocks at the same end, and both ends of the slide bars are fixed to the inner side of the base frame.

[0010] In some embodiments, opposite threads are disposed on the outer sides of the two second threaded rods.

[0011] Compared with the prior art, the present invention has the following significant advantages:

[0012] The utility model drives multiple slide blocks to move relatively by rotating two second threaded rods respectively, and then multiple supporting rollers move synchronously, so that pipes of different sizes can be supported. By holding the turntable and rotating it, the first threaded rod fixed thereto is driven to rotate, and the first threaded rod rotates and moves through the thread, and finally drives the fixed frame and the movable wheel at the lower end thereof to move downward, so as to push the raised welding end of the pipe to make it level, and the operation is simple.

[0013] The invention solves the existing problems that pipes of different sizes cannot be supported and two pipes cannot be welded on the same axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the overall top view structure provided by the utility model in one embodiment;

[0016] Figure 2 It is a schematic diagram of the overall bottom-up structure provided by the utility model in one embodiment;

[0017] Figure 3 It is a schematic diagram of the structure of a fixing frame provided in one embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the support mechanism structure provided in one embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 1. Base frame; 101. Fixed frame; 102. Reinforcement plate; 2. Fixed frame; 201. Movable wheel; 202. First threaded rod; 203. Turntable; 3. Support mechanism; 301. Sliding rod; 302. Sliding block; 303. Support roller; 304. Threaded groove; 305. Second threaded rod. DETAILED DESCRIPTION

[0021] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides an auxiliary device for pipe assembly welding through improvement. The technical solution of the utility model is:

[0023] like Figure 1-Figure 4 As shown, an auxiliary device for welding of pipe assemblies comprises a base frame 1, a fixing frame 101 is fixed on the upper side of the base frame 1, a fixing frame 2 is arranged on the inner side of the fixing frame 101, and a first threaded rod 202 is rotatably connected to the inner side of the fixing frame 101 through a thread, the lower side of the first threaded rod 202 is rotatably connected to the fixing frame 2, and movable wheels 201 are movably arranged at the four corners of the lower side of the fixing frame 2, and the fixing frame 2 and a plurality of movable wheels 201 connected thereto can be driven to move downward synchronously by rotating the first threaded rod 202, so as to flatten the raised welding end, and further comprises: a support The supporting mechanism 3 is arranged on the inner side of the base frame 1; the supporting mechanism 3 includes two second threaded rods 305 symmetrically connected to the inner side of the base frame 1, and the outer sides of the two second threaded rods 305 are symmetrically connected to two sliders 302 through threads, and the upper sides of the multiple sliders 302 are movably provided with supporting rollers 303. When it is necessary to support pipes of different sizes, the two second threaded rods 305 are rotated respectively, and the rotation of the two second threaded rods 305 drives the multiple sliders 302 to move relatively respectively through thread engagement, so as to lift the pipe upward for support.

[0024] like Figure 4 As shown, in one embodiment, the inner sides of the plurality of sliders 302 are each provided with a thread groove 304 matched with the two second threaded rods 305 , thereby ensuring the movement of the plurality of sliders 302 when the two second threaded rods 305 are rotated.

[0025] like Figure 3 As shown, in one embodiment, a rotating disk 203 is fixed to the upper end of the first threaded rod 202 to facilitate the first threaded rod 202 to be rotated by hand.

[0026] like Figure 1 As shown, in one embodiment, a reinforcing plate 102 is fixed to the inner side of the base frame 1 , and the structural strength of the base frame 1 can be enhanced by the reinforcing plate 102 .

[0027] like Figure 4As shown, in one embodiment, in order to ensure the horizontal relative movement of multiple sliders 302, the inner sides of the two sliders 302 located at the same end are symmetrically penetrated and slidably connected with two sliding rods 301, and both ends of the multiple sliding rods 301 are fixed to the inner side of the base frame 1 to play a guiding role.

[0028] like Figure 4 As shown, in one embodiment, opposite threads are provided on the outer sides of the two second threaded rods 305 , thereby ensuring the feasibility of relative movement of the plurality of sliders 302 .

[0029] The specific working method is as follows: when in use, when it is necessary to support pipes of different sizes, first rotate the two second threaded rods 305 counterclockwise, so that the two second threaded rods 305 drive the multiple sliders 302 to move relatively outward through the thread grooves 304 until they move to the inner edge of the bottom frame 1. At this time, place the pipe between two adjacent support rollers 303, and then rotate the two second threaded rods 305 clockwise. The two second threaded rods 305 rotate to drive the two adjacent sliders 302 to move inward respectively. At the same time, the multiple support rollers 303 move and slide on the surface of the pipe, and gradually lift the pipe upward for support until the welding end of the pipe reaches the required height. When two pipes need to be welded, the pipes are placed on the supporting mechanism 3 and adjusted so that the welding ends of the two pipes are at the same height. Since the welding ends of the two pipes are finely adjusted in height by the supporting mechanism 3, the welding ends of the pipes have a certain inclination angle. At this time, the turntable 203 is rotated clockwise to drive the first threaded rod 202 fixed thereto to rotate synchronously, and through the downward movement of the thread, the first threaded rod 202 moves the fixed frame 2 and the multiple movable wheels 201 downward synchronously to contact the pipes. At this time, the turntable 203 continues to be rotated so that the fixed frame 2 and the multiple movable wheels 201 continue to descend and push the raised welding ends of the two pipes until the raised welding ends are gradually flattened.

[0030] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. An auxiliary device for pipe assembly welding, comprising a base frame (1), a fixing frame (101) being fixed on the upper side of the base frame (1), a fixing frame (2) being arranged on the inner side of the fixing frame (101), a first threaded rod (202) being rotatably connected to the inner side of the fixing frame (101) through a thread, the lower side of the first threaded rod (202) being rotatably connected to the fixing frame (2), and movable wheels (201) being movably arranged on the four corners of the lower side of the fixing frame (2), characterized in that: Also includes: A supporting mechanism (3), wherein the supporting mechanism (3) is arranged on the inner side of the base frame (1); The support mechanism (3) comprises two second threaded rods (305) symmetrically rotatably connected to the inner side of the base frame (1); the outer sides of the two second threaded rods (305) are symmetrically rotatably connected to two sliders (302) via threads; and support rollers (303) are movably provided on the upper sides of the plurality of sliders (302).

2. The auxiliary device for pipe assembly welding according to claim 1, characterized in that: The inner sides of the plurality of sliding blocks (302) are each provided with a thread groove (304) adapted to the two second threaded rods (305).

3. The auxiliary device for pipe assembly welding according to claim 1, characterized in that: A rotating disk (203) is fixed to the upper end of the first threaded rod (202).

4. The auxiliary device for pipe assembly welding according to claim 1, characterized in that: A reinforcing plate (102) is fixed on the inner side of the base frame (1).

5. The auxiliary device for pipe assembly welding according to claim 1, characterized in that: Two sliding bars (301) are symmetrically penetrated and slidably connected to the inner sides of the two sliding blocks (302) located at the same end, and both ends of the plurality of sliding bars (301) are fixed to the inner side of the base frame (1).

6. The auxiliary device for pipe assembly welding according to claim 1, characterized in that: The outer sides of the two second threaded rods (305) are both provided with opposite threads.

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