Pipeline welding fixing tool

Abstract

The utility model belongs to the field of industrial engineering projects, and relates to a pipeline welding fixing tool which comprises two L-shaped supports, a connecting rod is arranged between the two L-shaped supports, two limiting steel plates are arranged on the two L-shaped supports, and clamping assemblies are arranged on the two limiting steel plates. According to the utility model, the adjusting process of installing a positioning pin during pipeline rolling opening-to-opening welding is omitted, the labor efficiency is improved, and meanwhile, the bottom channel steel plays a role in fixing when two sections of pipelines are welded, so that the two sections of flues are on the same horizontal line, the alignment tolerance of a welding seam is ensured to a great extent, and the welding quality is improved. Meanwhile, damage to base metal caused by cutting of the positioning pin in the later period is avoided, vertical position welding and overhead position welding are reduced during welding of a butt joint opening, the butt joint opening is basically completely changed into plane welding, the construction difficulty is reduced, and meanwhile the welding quality is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of industrial engineering projects and relates to a pipeline welding fixing tool. Background Art

[0002] After the flue is rolled, the two welded flue sections are assembled. Due to the uneven ground and the fact that the center lines of the flue are not on the same horizontal line, the joints are prone to misalignment. After the two flue sections are joined, they are offset in the horizontal direction, which leads to quality problems in the welding and deviations in the later pipeline installation. For this reason, the construction workers need to use positioning pins to position and adjust the interface before spot welding it. After the positioning spot welding is completed, the positioning pins need to be cut before welding, which reduces labor efficiency and easily damages the parent material after the positioning pins are cut. In addition, when the flue rolled interface is welded on the ground, there are vertical welding, overhead welding and even backflow welding, which makes the quality control of pipeline welding very difficult and has low labor productivity. The existing invention patent with application number CN107695608A, the tooling for titanium tube welding includes a first titanium tube and a second titanium tube; the tooling includes a frame, and universal wheels are provided at the four corners of the bottom surface of the frame, and each universal wheel is equipped with a locking mechanism; a flat slide rail is provided on the top surface of the frame, and a first slide seat and a second slide seat are provided on the slide rail; a vertical first lifting bracket is provided on the first slide seat, and a vertical second lifting bracket is provided on the second slide seat; a first rotating table is provided on the top of the first lifting bracket, and a second rotating table is provided on the top of the second lifting bracket; a first pipe clamp for fixing the first titanium tube is provided on the first rotating table, and a second pipe clamp for fixing the second titanium tube is provided on the second rotating table.

[0003] The prior art has the following technical defects:

[0004] The above technical solution is applicable to titanium tubes with relatively light weight. Pipes that need to be welded in engineering are mostly thick and heavy pipes. The structure of the above technical solution is not applicable to the welding of heavy pipes. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a pipeline welding fixing tool.

[0006] The pipeline welding fixing tool described in the utility model comprises two L-shaped brackets, a connecting rod is arranged between the two L-shaped brackets, two limiting steel plates are arranged on the two L-shaped brackets, and clamping components are arranged on the two limiting steel plates.

[0007] Working process or working principle:

[0008] When in use, the two steel pipes are placed flat between the two limiting steel plates so that the gap between the two steel pipes is located in the middle of the two L-shaped brackets. The two steel pipes are then fixed and clamped by the clamping assembly and then welded. This eliminates the need for installing positioning pins and adjusting the pipes when the pipes are rolled and welded together, thereby improving labor efficiency. At the same time, the limiting steel plate at the bottom plays a fixing role when the two pipe sections are welded together, so that the two flue sections are on the same horizontal line, thereby ensuring the misalignment of the weld to a great extent.

[0009] The clamping assembly includes a support plate arranged on the outside of a limiting steel plate, a driving assembly is provided on the support plate, a pressure plate is connected to the driving assembly, a circular through hole is opened on the pressure plate, a limiting column is provided in the circular through hole, the limiting column is fixedly connected to another limiting steel plate, the pressure plate is moved by the driving assembly, the pressure plate is fitted with the pipeline, and the position of the pipeline is further fixed under the action of the L-shaped bracket and the limiting steel plate.

[0010] The distance between the two limiting steel plates is 2 / 3 times the diameter of the processed pipe.

[0011] The driving assembly includes a first protective shell and a second protective shell arranged on one side of the supporting plate, the first protective shell and the second protective shell are respectively provided with a first screw rod and a second screw rod, the bottoms of the first screw rod and the second screw rod are respectively connected with a first pulley and a second pulley, a transmission belt is wound around the first pulley and the second pulley, a motor is provided on one side of the first protective shell, and a slide groove is provided on one side of the first protective shell, the two ends of the pressing plate extend to the inside of the first protective shell and the second protective shell respectively and are connected to the first screw rod and the second screw rod, the first screw rod is driven to rotate by the motor, and the first pulley rotates accordingly, and the first pulley drives the second pulley to rotate through the transmission belt, thereby driving the second screw rod to rotate, and then driving the pressing plate to move, so as to realize the lifting and lowering of the pressing plate.

[0012] The limiting steel plate is slidably connected to the L-shaped bracket, and a locking and fixing component is provided on the limiting steel plate. By adjusting the distance between the two limiting steel plates, pipe welding of various specifications can be applied. The moving structure can be a slide rail, a slide groove and other structures, and the locking and fixing component can be a limiting pin, a locking bolt and the like.

[0013] The L-shaped bracket adopts C120mm channel steel, the connecting rod adopts L120mm angle iron, and the limiting steel plate adopts C120mm channel steel. The channel steel has good stability and deformation resistance, can maintain the stability of the structure when subjected to force, and is not prone to deformation or instability. The angle iron has high strength and stability, can withstand large loads and stresses, and ensure the stability and safety of the structure.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model eliminates the need for adjusting the positioning pins during the butt welding of the rolled ends of the pipes, thereby improving labor efficiency. At the same time, the bottom channel steel plays a fixing role during the butt welding of the two pipe sections, so that the two flue sections are on the same horizontal line, which greatly guarantees the misalignment of the welds and protects the damage to the parent material caused by cutting of the positioning pins in the later stage. The butt welding reduces vertical welding and overhead welding, and basically all becomes plane welding, which reduces the construction difficulty and greatly improves the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0017] Figure 2 It is a structural schematic diagram of a driving component in one embodiment of the utility model.

[0018] Figure 3 This utility model Figure 2 A in the enlarged view,

[0019] Figure 4 It is a schematic diagram of the working state of one embodiment of the utility model.

[0020] In the figure: 1. L-shaped bracket; 2. connecting rod; 3. limiting steel plate; 4. supporting plate; 5. first protective shell; 6. first screw rod; 7. first pulley; 8. second protective shell; 9. second screw rod; 10. second pulley; 11. motor; 12. slide groove; 13. pressure plate; 14. limiting column; 15. transmission belt. DETAILED DESCRIPTION

[0021] Example 1

[0022] like Figure 1 to Figure 4As shown, the pipeline welding fixing tool described in the utility model comprises two L-shaped brackets 1, a connecting rod 2 is arranged between the two L-shaped brackets 1, two limiting steel plates 3 are arranged on the two L-shaped brackets 1, and clamping components are arranged on the two limiting steel plates 3; the clamping component comprises a supporting plate 4 arranged on the outside of the limiting steel plates 3, a driving component is arranged on the supporting plate 4, a pressing plate 13 is connected to the driving component, a circular through hole is opened on the pressing plate 13, a limiting column 14 is arranged in the circular through hole, and the limiting column 14 is fixedly connected to the other limiting steel plate 3, and the pressing plate 13 is driven by the driving component to move, so that the pressing plate 13 is fitted with the pipeline, and the L The bracket 1 cooperates with the limiting steel plate 3 to further fix the position of the pipeline; the spacing between the two limiting steel plates 3 is 2 / 3 times the diameter of the processed pipeline; the driving assembly includes a first protective shell 5 and a second protective shell 8 arranged on one side of the support plate 4, and the first protective shell 5 and the second protective shell 8 are respectively provided with a first screw rod 6 and a second screw rod 9, and the bottoms of the first screw rod 6 and the second screw rod 9 are respectively connected to a first pulley 7 and a second pulley 10, and a transmission belt 15 is wound around the first pulley 7 and the second pulley 10, and a motor 11 is provided on one side of the first protective shell 5, and the first protective shell 5 and one side of the second protective shell 8 are provided with a slide groove 12, and the two ends of the pressure plate 13 extend to the inside of the first protective shell 5 and the second protective shell 8 respectively and are connected to the first screw rod 6 and the second screw rod 9. The first screw rod 6 is driven to rotate by the motor 11, and the first pulley 7 rotates accordingly. The first pulley 7 drives the second pulley 10 to rotate through the transmission belt 15, thereby driving the second screw rod 9 to rotate, and then driving the pressure plate 13 to move, so as to realize the lifting and lowering of the pressure plate 13; the limit steel plate 3 is slidably connected to the L-shaped bracket 1, and a locking and fixing component is provided on the limit steel plate 3. By adjusting the two limit The distance between the positioning steel plates 3 can be suitable for welding of pipelines of various specifications. The movable structure can be a slide rail, a slide groove 12 and other structures. The locking and fixing components can be limit pins, locking bolts and the like. The L-shaped bracket 1 adopts C120mm channel steel, the connecting rod 2 adopts L120mm angle iron, and the limiting steel plate 3 adopts C120mm channel steel. The channel steel has good stability and deformation resistance. It can maintain the stability of the structure when subjected to force and is not prone to deformation or instability. The angle iron has high strength and stability and can withstand large loads and stresses to ensure the stability and safety of the structure.

[0023] Working process or working principle:

[0024] When in use, the two steel pipes are placed flat between the two limiting steel plates 3 so that the gap between the two steel pipes is located between the two L-shaped brackets 1, and then the first screw rod 6 is driven to rotate by the motor 11, and the first pulley 7 rotates accordingly. The first pulley 7 drives the second pulley 10 to rotate through the transmission belt 15, thereby driving the second screw rod 9 to rotate, and then driving the pressure plate 13 to move, so as to realize the lifting and lowering of the pressure plate 13, thereby fixing and clamping the two steel pipes, and then welding them, eliminating the process of installing the positioning pin adjustment when welding the pipe rolled mouth to mouth, improving labor efficiency, and at the same time, the limiting steel plate 3 at the bottom plays a fixing role when the two sections of the pipe are welded at the interface, so that the two sections of the flue are on the same horizontal line, which greatly guarantees the misalignment of the weld.

[0025] The utility model eliminates the need for adjusting the positioning pins during the butt welding of the rolled ends of the pipes, thereby improving labor efficiency. At the same time, the bottom channel steel plays a fixing role during the butt welding of the two pipe sections, so that the two flue sections are on the same horizontal line, which greatly guarantees the misalignment of the welds and protects the damage to the parent material caused by cutting of the positioning pins in the later stage. The butt welding reduces vertical welding and overhead welding, and basically all becomes plane welding, which reduces the construction difficulty and greatly improves the welding quality.

[0026] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A pipeline welding fixture, characterized in that: It comprises two L-shaped brackets (1), a connecting rod (2) is provided between the two L-shaped brackets (1), two limiting steel plates (3) are provided on the two L-shaped brackets (1), and clamping components are provided on the two limiting steel plates (3); The clamping assembly comprises a support plate (4) arranged outside the limiting steel plate (3), a driving assembly is arranged on the support plate (4), a pressing plate (13) is connected to the driving assembly, a circular through hole is opened on the pressing plate (13), and a limiting column (14) is arranged in the circular through hole; The limiting steel plate (3) is slidably connected to the L-shaped bracket (1), and a locking and fixing component is provided on the limiting steel plate (3).

2. The pipeline welding fixture according to claim 1 is characterized in that: The distance between the two limiting steel plates (3) is 2 / 3 times the diameter of the processed pipe.

3. The pipeline welding fixture according to claim 2 is characterized in that: The driving assembly comprises a first protective shell (5) and a second protective shell (8) arranged on one side of the support plate (4); a first screw rod (6) and a second screw rod (9) are respectively arranged in the first protective shell (5) and the second protective shell (8); the bottoms of the first screw rod (6) and the second screw rod (9) are respectively connected with a first belt pulley (7) and a second belt pulley (10); a transmission belt (15) is wound around the first belt pulley (7) and the second belt pulley (10); a motor (11) is arranged on one side of the first protective shell (5); a slide groove (12) is provided on one side of the first protective shell (5) and the second protective shell (8); two ends of the pressing plate (13) extend into the first protective shell (5) and the second protective shell (8) and are connected with the first screw rod (6) and the second screw rod (9).

4. The pipeline welding fixture according to claim 3 is characterized in that: The L-shaped bracket (1) is made of C120mm channel steel, the connecting rod (2) is made of L120mm angle iron, and the limiting steel plate (3) is made of C120mm channel steel.

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