CN206764240U - Pipeline butt welding positioning tool fixture - Google Patents

Abstract

The utility model discloses a pipeline butt welding positioning fixture, which solves the problem of difficult wall thickness and high pressure pipeline butt welding positioning. It includes the butt-welding upper pipe nozzle (1) and the butt-welding lower pipe nozzle (2), and the left half clamp (3) and the right half clamp (4) are arranged on the butt-welding upper pipe nozzle (1), A left wedge-shaped positioning plate (7) and a front wedge-shaped positioning plate (8) are respectively arranged on the outer surface of the left half clamp (3), and a right wedge-shaped positioning plate is respectively arranged on the outer surface of the right half clamp (4) (9) and the rear wedge-shaped positioning plate (10), a positioning nut is fixedly arranged at the lower end of each wedge-shaped positioning plate, by adjusting four positioning adjustment bolts, the gap between the welding joints of the pipes is uniform. The utility model can quickly and evenly adjust the weld seam gap of the pipeline, is easy to operate, and improves the butt welding quality.

Description

Pipe butt welding positioning fixture

technical field

The utility model relates to a positioning tool fixture, in particular to a tool fixture for butt joint positioning of two pipelines when two pipelines are butt welded.

Background technique

In pipeline laying and installation, the accuracy of butt joint positioning of two connected pipelines will directly affect the quality of butt welding of pipeline welds and the efficiency of pipeline butt joint construction. In the field construction, the joint positioning of the two pipes connected by welding is usually adjusted and positioned by manpower with tools such as crowbars, so as to achieve the purpose of coincident centerlines of the two pipes and a uniform butt joint gap. When encountering a high-pressure pipeline with a relatively large wall thickness and a relatively large unit weight per meter, it will be very difficult to adjust and position tools such as manpower with crowbars. Especially when the ellipticity of the nozzle is out of tolerance and the wall thickness of the pipe is large, the ellipticity cannot be corrected by the above method. At this time, the deviation caused by the ellipticity of the nozzle needs to be based on the center line of the pipe, and the butt joint The top, bottom, left, and right sides of the pipe groove are evenly matched, and the traditional butt joint method can no longer meet this requirement.

Contents of the invention

The utility model provides a pipeline butt welding positioning fixture, which solves the technical problem of difficult wall thickness and high pressure pipeline butt welding positioning.

The utility model solves the above technical problems through the following technical solutions:

A pipe butt welding positioning fixture, comprising a butt welding upper pipe nozzle and a butt welding lower pipe nozzle, a left half clamp and a right half clamp are arranged on the butt welding upper pipe nozzle, and the left half clamp A left wedge-shaped positioning plate and a front wedge-shaped positioning plate are respectively arranged on the outer surface, a right wedge-shaped positioning plate and a rear wedge-shaped positioning plate are respectively arranged on the outer surface of the right half clamp, and a left positioning plate is fixedly arranged at the lower end of the left wedge-shaped positioning plate. Nuts are fixedly provided with a front positioning nut at the lower end of the front wedge-shaped positioning plate; The left positioning adjusting bolt is connected, and the front end of the left positioning adjusting bolt is connected to the nozzle of the butt welded lower pipe under the pre-welding seam. The front positioning nut is screwed with the front positioning adjusting bolt, and the front end of the front positioning adjusting bolt is movable The top is connected to the nozzle of the lower butt welding pipe under the pre-welding seam, and the right positioning adjustment bolt is screwed into the right positioning nut. On the mouth, a rear positioning adjustment bolt is screwed in the rear positioning nut, and the front end of the rear positioning adjustment bolt is movable and connected to the butt welding lower pipe nozzle below the pre-welding seam.

The left wedge-shaped positioning plate, the front wedge-shaped positioning plate, the right wedge-shaped positioning plate and the rear wedge-shaped positioning plate are set at equal intervals on the nozzle of the butt-welded pipe; the left half clamp and the right half clamp are respectively connected to the bolts through the left clamp It is connected with the right clamp connecting bolt.

The utility model designs a simple and practical pipe butt joint clip. By adjusting the adjusting positioning bolts in four directions, the gap between the pipe welding joints can be quickly and evenly adjusted. The operation is simple and the butt welding quality is improved.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation of the utility model hoop;

Fig. 3 is a structural schematic diagram of the wedge-shaped positioning plate of the present invention.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail:

A pipe butt welding positioning fixture, comprising a butt welding upper pipe nozzle 1 and a butt welding lower pipe nozzle 2, a left half clamp 3 and a right half clamp 4 are arranged on the butt welding upper pipe nozzle 1, A left wedge-shaped positioning plate 7 and a front wedge-shaped positioning plate 8 are respectively provided on the outer surface of the left half clamp 3, and a right wedge-shaped positioning plate 9 and a rear wedge-shaped positioning plate 10 are respectively provided on the outer surface of the right half clamp 4. The lower end of the left wedge-shaped positioning plate 7 is fixedly provided with a left positioning nut 11, the lower end of the front wedge-shaped positioning plate 8 is fixedly provided with a front positioning nut 13, and the lower end of the right wedge-shaped positioning plate 9 is fixedly provided with a right positioning nut 15. The lower end of the wedge-shaped positioning plate 10 is fixedly provided with a rear positioning nut 17, and a left positioning adjusting bolt 12 is screwed in the left positioning nut 11. On the pipe nozzle 2, a front positioning adjustment bolt 14 is screwed in the front positioning nut 13, and the front end movable top of the front positioning adjustment bolt 14 is connected on the pipe nozzle 2 under the butt welding below the pre-welding seam 19, on the right A right positioning adjustment bolt 16 is screwed in the positioning nut 15, and the front end movable top of the right positioning adjustment bolt 16 is connected on the pipe nozzle 2 under the butt welding below the pre-welding seam 19, and the rear positioning nut 17 is screwed with a rear Positioning adjustment bolt 18, the front end movable top of back positioning adjustment bolt 18 is connected on the pipe nozzle 2 under the butt welding below the pre-welding weld seam 19.

The left wedge-shaped positioning plate 7, the front wedge-shaped positioning plate 8, the right wedge-shaped positioning plate 9 and the rear wedge-shaped positioning plate 10 are arranged at equal intervals on the butt-welded pipe nozzle 1; the left half clamp 3 and the right half clamp 4 They are connected together by the left clamp connecting bolt 6 and the right clamp connecting bolt 5 respectively.

In the alignment of the two pipes, the left half clamp 3 and the right half clamp 4 are connected together by the left clamp connecting bolt 6 and the right clamp connecting bolt 5 respectively, and fixed on one end of the corresponding pipe section. By adjusting the four positioning and adjusting bolts, the gap between the welding joints of the pipeline is even, and then spot welding the well-aligned welding joints together. The connecting bolts of the left half clamp 3 and the right half clamp 4, remove the left half clamp 3 and the right half clamp 4.

Claims (2)

1. A pipe butt welding positioning fixture, including the butt welding upper pipe nozzle (1) and the butt welding lower pipe nozzle (2), and the left half clamp is arranged on the butt welding upper pipe nozzle (1) (3) and the right half clamp (4), characterized in that a left wedge-shaped positioning plate (7) and a front wedge-shaped positioning plate (8) are respectively provided on the outer surface of the left half clamp (3). A right wedge-shaped positioning plate (9) and a rear wedge-shaped positioning plate (10) are respectively arranged on the outer surface of the clamp (4), and a left positioning nut (11) is fixedly arranged on the lower end of the left wedge-shaped positioning plate (7). The lower end of the wedge-shaped positioning plate (8) is fixedly provided with a front positioning nut (13), the lower end of the right wedge-shaped positioning plate (9) is fixedly provided with a right positioning nut (15), and the lower end of the rear wedge-shaped positioning plate (10) is fixedly arranged Back positioning nut (17) is arranged, left positioning adjusting bolt (12) is screwed in the left positioning nut (11), and the front end movable top of left positioning adjusting bolt (12) is connected to the opposite side below the pre-welding seam (19). On the nozzle (2) of the welded lower pipe, a front positioning adjustment bolt (14) is screwed in the front positioning nut (13), and the front end of the front positioning adjustment bolt (14) is connected to the bottom of the pre-welding seam (19) On the nozzle (2) of the lower butt welded pipe, a right positioning adjusting bolt (16) is screwed in the right positioning nut (15), and the front end of the right positioning adjusting bolt (16) is connected to the pre-welded seam (19 ) below the butt welding pipe nozzle (2), the rear positioning adjustment bolt (18) is screwed in the rear positioning nut (17), and the front end of the rear positioning adjustment bolt (18) is connected to the pre-welded weld (19) on the butt welded lower pipe nozzle (2). 2. A pipe butt welding positioning fixture according to claim 1, characterized in that the left wedge-shaped positioning plate (7), the front wedge-shaped positioning plate (8), the right wedge-shaped positioning plate (9) and the rear wedge-shaped positioning plate The plate (10) is set on the nozzle (1) of the butt-welded pipe at equal intervals; the left half clamp (3) and the right half clamp (4) are respectively connected to the bolt (6) and the right half clamp through the left clamp The clamps are connected together by bolts (5).