Ship pipeline welding centering device

Abstract

The utility model discloses a ship pipeline welding centering device, and belongs to the technical field of welding auxiliary equipment. Comprising a clamping cylinder, a clamping plate, a pressing block and a centering column. The clamping cylinder is arranged on the outer side of the fixing pipe, the clamping plate is arranged on the side face of the clamping cylinder in a sliding mode, and the clamping plate is fixedly clamped to the fixing pipe connected to the ship equipment; a welding pipe to be welded with the fixed pipe sleeves the centering column, the welding pipe is in butt joint with the fixed pipe, and the centering column is inserted into the fixed pipe; a pressing block capable of enabling the welding pipe and the fixing pipe to be in butt joint and pressed is fixedly connected with the clamping cylinder, and the pressing block is fixedly connected with the centering column. Accurate centering of the welded pipe and the fixed pipe is rapidly achieved through the centering column, meanwhile, the welded pipe and the fixed pipe can be kept in an integrated state after centering, the centering accuracy is not affected by ship shaking, and no connection trace is left on the fixed pipe and the welded pipe after welding is finished.

Description

Technical Field

[0001] This utility model provides a welding alignment device for ship pipelines, belonging to the technical field of welding auxiliary equipment. Background Technology

[0002] In modern shipbuilding and maintenance, shipboard equipment and piping are crucial components. Therefore, the installation quality of shipboard piping directly affects the normal operation and safety of the vessel. Shipboard piping frequently requires maintenance operations such as welding to extend pipelines and ensure their proper functioning and use under specific circumstances. Before welding, it is often necessary to align the pipe to be welded with the fixed pipe.

[0003] For routine pipe welding, after aligning the welded pipe with the fixed pipe, stability can be ensured simply by keeping both pipes relatively stationary relative to the ground. However, ships, when in motion, are subject to various complex factors that cause continuous turbulence and rolling. This dynamic environment makes the already challenging pipe welding alignment work even more difficult. Because the welded and fixed pipes are separate and not integrated before welding, even after alignment, the pipes to be welded will shift in position and change angle due to the ship's rolling, making it difficult to maintain precise alignment using traditional methods. Therefore, a shipboard pipe welding alignment device is needed to address these issues. Utility Model Content

[0004] The technical problem this invention aims to solve is that the poor stability of ships can easily affect the accuracy of pipe alignment during pipe welding, thereby affecting the quality of pipe welding.

[0005] To solve the above problems, the proposed technical solution is as follows: a ship pipeline welding alignment device, comprising a clamping cylinder, a clamping plate, a pressing block, and an alignment column; the clamping cylinder is disposed outside the fixed pipe, the clamping plate is slidably disposed on the side of the clamping cylinder, and the clamping plate is fixedly clamped to the fixed pipe connected to the ship equipment; the clamping cylinder is provided with a clamping assembly capable of controlling the sliding of the clamping plate; the welding pipe to be welded to the fixed pipe is sleeved on the alignment column, the welding pipe and the fixed pipe are connected to each other, and the alignment column is inserted into the fixed pipe; the pressing block capable of pressing the welding pipe and the fixed pipe together is fixedly connected to the clamping cylinder, and the pressing block is fixedly connected to the alignment column.

[0006] As an improvement, the inner diameter of the center column corresponds to that of the fixed pipe and the welded pipe.

[0007] As an improvement, a connecting rod is fixedly connected to the clamping cylinder, and the connecting rod is fixedly connected to the clamping block.

[0008] As an improvement, the clamping assembly includes a bidirectional screw and a slider. The bidirectional screw is rotatably disposed inside the clamping cylinder. There are two sliders, and the two sliders are threadedly connected to corresponding positions of the bidirectional screw. A guide groove is provided on the clamping cylinder, and a guide rod fixedly connected to the slider is disposed in the guide groove. There are two clamping plates, and the clamping plates are fixedly connected to the guide rods.

[0009] As an improvement, the clamping plate is an arc-shaped plate corresponding to the diameter of the fixed tube, and the inner wall of the clamping plate is provided with an anti-slip pad.

[0010] The beneficial effects of this utility model are:

[0011] The welded pipe is fitted onto the centering post, which is inserted into the fixed pipe. By setting the centering post and positioning it simultaneously within both the fixed and welded pipes, precise alignment of the two pipes can be achieved quickly. Furthermore, clamping blocks increase the tightness of the connection. Simultaneously, a clamping plate is fixedly held onto the fixed pipe. The welded pipe remains integrated with the fixed pipe via the clamping blocks, clamping sleeve, and clamping plate. Even when the ship rolls, the fixed pipe remains relatively stationary with respect to the welded pipe, ensuring accurate alignment. Moreover, no connection marks are left on either the fixed or welded pipes after welding. Attached Figure Description

[0012] Figure 1 This is a perspective view of a ship pipeline welding alignment device according to the present invention.

[0013] Figure 2 This is a perspective view of a ship pipeline welding alignment device according to this utility model.

[0014] Figure 3 This is a partial cross-sectional view of a ship pipeline welding alignment device according to the present invention.

[0015] Figure 4 This is a cross-sectional view of the clamping cylinder of a ship pipeline welding alignment device according to the present invention.

[0016] Figure 5 This is an exploded view of the connection of a ship pipeline welding alignment device according to the present invention.

[0017] 1. Fixed tube; 2. Clamping cylinder; 3. Clamping plate; 4. Connecting rod; 5. Pressing block; 6. Welded tube; 7. Centering column; 8. Guide groove; 9. Guide rod; 10. Slider; 11. Bidirectional screw. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] according to Figure 1-5As shown: This utility model provides a ship pipeline welding alignment device, including a clamping cylinder 2, a clamping plate 3, a pressing block 5, and an alignment column 7; the clamping cylinder 2 is disposed on the outside of the fixed pipe 1, the clamping plate 3 is slidably disposed on the side of the clamping cylinder 2, and the clamping plate 3 is fixedly clamped on the fixed pipe 1 connected to the ship equipment; the clamping cylinder 2 is provided with a clamping assembly that can control the sliding of the clamping plate 3;

[0020] like Figure 4 As shown, the clamping assembly includes a bidirectional screw 11 and two sliders 10. The bidirectional screw 11 is rotatably mounted inside the clamping cylinder 2. Two sliders 10 are provided, and the two sliders 10 are threadedly connected to corresponding positions on the bidirectional screw 11. A guide groove 8 is provided on the clamping cylinder 2, and a guide rod 9 fixedly connected to the slider 10 is provided in the guide groove 8. Two clamping plates 3 are provided, and the clamping plates 3 are fixedly connected to the guide rods 9. The guide groove 8 and the guide rods 9 can restrict the rotation of the sliders 10, thereby converting the rotation of the bidirectional screw 11 into the movement of the sliders 10, and driving the two clamping plates 3 to slide through the guide rods 9.

[0021] like Figure 3 As shown, the welding pipe 6, which is to be welded to the fixed pipe 1, is fitted onto the centering column 7. The welding pipe 6 and the fixed pipe 1 are connected to each other, and the centering column 7 is inserted into the fixed pipe 1. The centering column 7 corresponds to the inner diameter of the fixed pipe 1 and the welding pipe 6, and the fixed pipe 1 and the welding pipe 6 can be conveniently, quickly and accurately aligned through the centering column 7.

[0022] like Figure 1 , 2 As shown, a connecting rod 4 is fixedly connected to the clamping cylinder 2, and the connecting rod 4 is fixedly connected to the clamping block 5. The clamping block 5 is fixedly connected to the centering column 7. The clamping block 5, which enables the welded pipe 6 to be butt-pressed and pressed against the fixed pipe 1, is fixedly connected to the clamping cylinder 2, which can ensure the integrated connection of the welded pipe 6 and the fixed pipe 1 during butt-pressing.

[0023] The clamping plate 3 is an arc-shaped plate corresponding to the diameter of the fixed tube 1, and the inner wall of the clamping plate 3 is provided with an anti-slip pad, which can increase the stability of the clamping plate 3 in fixing the fixed tube 1.

[0024] The principle of this utility model

[0025] like Figure 5 The diagram shows the state of the ship's piping before welding. Fixed pipe 1 is fixedly connected to the equipment on the ship. Before welding, the welding pipe 6 needs to be aligned with the fixed pipe 1. First, the welding pipe 6 is fitted onto the centering post 7, so that one end of the welding pipe 6 contacts the clamping block 5, while the centering post 7 protrudes from the other end of the welding pipe 6. Then, the welding pipe 6 is joined to the fixed pipe 1, and a portion of the centering post 7 is inserted into the fixed pipe 1, as shown... Figure 3As shown, the central column 7 enables rapid and precise alignment of the welded pipe 6 and the fixed pipe 1, and the clamping block 5 increases the tightness of their connection. Figure 4 As shown, turning the double-ended screw 11 causes the two clamping plates 3 to move closer together under the action of the slider 10, until the clamping plates 3 are fixedly clamped onto the fixed pipe 1. At this point, the welded pipe 6 and the fixed pipe 1 are integrated and relatively stationary. Even if the ship is unstable, the alignment accuracy of the two will not be affected. After the normal welding of the welded pipe 6 and the fixed pipe 1 is completed, the double-ended screw 11 is reversed to release the clamping plates 3 from the fixed pipe 1. Then, the entire alignment device can be directly slid out from the fixed pipe 1 and the welded pipe 6 without leaving any connection marks on the fixed pipe 1 and the welded pipe 6.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A welding alignment device for ship pipelines, characterized in that: The system includes a clamping cylinder (2), a clamping plate (3), a clamping block (5), and a centering column (7). The clamping cylinder (2) is located outside the fixed pipe (1), and the clamping plate (3) is slidably located on the side of the clamping cylinder (2) and is fixedly clamped on the fixed pipe (1) connected to the ship equipment. The clamping cylinder (2) is provided with a clamping assembly that can control the sliding of the clamping plate (3). The welding pipe (6) to be welded to the fixed pipe (1) is sleeved on the centering column (7), the welding pipe (6) and the fixed pipe (1) are connected to each other, and the centering column (7) is inserted into the fixed pipe (1). The clamping block (5) that can make the welding pipe (6) and the fixed pipe (1) be connected and pressed together is fixedly connected to the clamping cylinder (2) and the clamping block (5) is fixedly connected to the centering column (7).

2. The ship pipeline welding alignment device according to claim 1, characterized in that: The inner diameter of the centering column (7) corresponds to that of the fixed pipe (1) and the welded pipe (6).

3. The ship pipeline welding alignment device according to claim 1, characterized in that: A connecting rod (4) is fixedly connected to the clamping cylinder (2), and the connecting rod (4) is fixedly connected to the clamping block (5).

4. The ship pipeline welding alignment device according to claim 1, characterized in that: The clamping assembly includes a bidirectional screw (11) and a slider (10). The bidirectional screw (11) is rotatably disposed inside the clamping cylinder (2). There are two sliders (10), and the two sliders (10) are threadedly connected to the corresponding positions of the bidirectional screw (11). The clamping cylinder (2) is provided with a guide groove (8), and a guide rod (9) fixedly connected to the slider (10) is disposed in the guide groove (8). There are two clamping plates (3), and the clamping plates (3) are fixedly connected to the guide rod (9).

5. A ship pipeline welding alignment device according to claim 1, characterized in that: The clamping plate (3) is an arc-shaped plate corresponding to the diameter of the fixed tube (1), and the inner wall of the clamping plate (3) is provided with an anti-slip pad.

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