Snakelike coil pipe welding anti-deformation tool

Abstract

The utility model discloses an anti-deformation tool for welding a snakelike coil pipe, which is used for solving the difficulty of welding deformation of an elbow and a straight pipe section, and belongs to the technical field of pressure vessel manufacturing. The device comprises at least one piece of connecting angle steel, through holes are formed in one right-angle face of the connecting angle steel at equal intervals, U-shaped bolts are installed on the outer side of the connecting angle steel at equal intervals, openings of the U-shaped bolts face the inner side of the connecting angle steel, the U-shaped bolts limit displacement of the straight coil pipe, and the U-shaped bolts penetrate through the through holes and then are fixed through nuts.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure vessel manufacturing, and particularly relates to a serpentine coil welding anti-deformation tool. Background Art

[0002] The straight pipe section of the serpentine coil is composed of multiple layers. The serpentine coil has a large diameter and a small bending radius. After the serpentine coil is processed, the position of the welding joint is not fixed. If the welding joint is in the straight pipe section, it is not convenient for maintenance. Moreover, when the coil is cold-bent, the coil elbow is greatly deformed and the stress is concentrated, which shortens the service life of the serpentine coil.

[0003] The serpentine coil can also be processed by welding straight coils and curved coils. However, during welding, both the spacing and parallelism of the straight coils must be ensured. During the welding process, the straight coils and curved coils are welded with large welding deformation, which can easily cause warping and longitudinal displacement. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model aims to provide a serpentine coil welding anti-deformation tooling for solving the difficulty of welding deformation of curved coils and straight coils, improving work efficiency and simplifying manufacture.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] A serpentine coil welding anti-deformation tooling includes at least one connecting angle steel, a right-angle surface of which is provided with through holes with equal spacing, and the outer side of the connecting angle steel is equidistantly installed with U-shaped bolts opening toward the inner side of the connecting angle steel to limit the displacement of the straight coil, and the U-shaped bolts are fixed with nuts after passing through the through holes.

[0007] When using, first place the connecting angle steel flat on the ground, then fix the straight coil pipe on the connecting angle steel at equal distances with U-shaped bolts, and then weld the bent coil pipe on one side of the adjacent straight coil pipe.

[0008] Further preferably, the edge of the other right-angled surface of the connecting angle steel is fixed on the working platform.

[0009] Further preferably, the number of the connecting angle steels is 2, one connecting angle steel is fixed perpendicularly to the straight coil, and the other connecting angle steel is fixed to the straight coil at a certain angle, so that the connecting angle steel can be as close as possible to the position of the welded bent coil, and the connecting angle steel can be as close as possible to the welded joint.

[0010] The utility model has the advantages of scientific tooling design, simple structure, time-saving, labor-saving and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 The utility model is represented by a schematic diagram of the structure.

[0014] Figure 2 Represents the schematic diagram of the connecting angle steel elevation.

[0015] Figure 3 It shows the schematic diagram of the cross section of the connecting angle steel.

[0016] In the figure: 1- bent coil, 2- connecting angle steel, 3- straight coil, 4- U-bolt. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0018] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] The specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0021] like Figure 1As shown, a serpentine coil welding anti-deformation tooling includes two connecting angle steels 2, one connecting angle steel 2 is fixed vertically to the straight coil 3, and the other connecting angle steel 2 is fixed to the straight coil 3 at a certain angle. Figure 2 and 3 As shown, a right angle surface of the connecting angle steel 2 is provided with through holes with equal spacing, such as Figure 1 As shown, U-bolts 4 with openings facing the inside of the connecting angle steel 2 to limit the displacement of the straight coil 3 are equidistantly installed on the outside of the connecting angle steel 2. The U-bolts 4 are fixed with nuts after passing through the through holes, and the edge of the other right-angle surface of the connecting angle steel 2 is fixed on the working platform.

[0022] When applied, such as Figure 1 As shown, first Figure 3 After the connecting angle steel 2 shown is rotated 90° clockwise, the edge of the other right-angle surface of the connecting angle steel 2 is spot welded on the work platform, and then the straight coil pipe 3 is fixed by passing the U-bolt 4 through two adjacent through holes of the connecting angle steel 2 and then fixed with a nut. This method of fixing the straight coil pipe and the connecting angle steel together can ensure that the straight coil pipe 3 relies on a right-angle surface of the connecting angle steel 2 to ensure horizontality, and can also ensure that the spacing between the straight coil pipes 3 is equidistant, and then the bent coil pipe 1 is assembled on one side of the adjacent straight coil pipe 3, and finally the bent coil pipe 1 and the straight coil pipe 3 are welded together.

[0023] The functions of the components of a serpentine coil welding anti-deformation tool are as follows: the through hole on the connecting angle steel 2 is to ensure the spacing of the straight coil pipe 3, the plane of the connecting angle steel 2 is to ensure the horizontality of the straight coil pipe 3, the purpose of the U-bolt 4 and the nut is to prevent the straight coil pipe 3 from generating longitudinal displacement and welding deformation when the bent coil pipe 1 is welded to the straight coil pipe 3, and the purpose of the bent coil pipe 1 is to ensure that the welding joint is not in the straight pipe section.

[0024] The above is only a specific implementation of the utility model, which enables those skilled in the art to understand or implement the utility model. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A serpentine coil welding anti-deformation tool, characterized by: The invention comprises at least one connecting angle steel (2), wherein a right-angle surface of the connecting angle steel (2) is provided with through holes at equal intervals, and U-shaped bolts (4) are equidistantly mounted on the outer side of the connecting angle steel (2) and have openings facing the inner side of the connecting angle steel (2) to limit the displacement of the straight coil tube (3), and the U-shaped bolts (4) are fixed with nuts after passing through the through holes.

2. The serpentine coil welding anti-deformation tool according to claim 1 is characterized in that: The edge of the other right-angled surface of the connecting angle steel (2) is fixed on the working platform.

3. The serpentine coil welding anti-deformation tool according to claim 2 is characterized in that: The number of the connecting angle steels (2) is two, and the two connecting angle steels (2) are fixed on the working platform at an angle.

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