Auxiliary tool for welding and grinding subsea pipeline

Abstract

The utility model discloses an auxiliary tool for welding and polishing a subsea pipeline, the auxiliary tool for welding and polishing the subsea pipeline comprises a baffle plate and a magnetic suction cup, the magnetic suction cup is arranged in the baffle plate, and the magnetic suction cup is adsorbed on the outer wall of the subsea pipeline, so that the baffle plate is arranged along the length direction of the subsea pipeline; a groove clamp is arranged on the baffle plate, a spring is arranged between the groove clamp and the baffle plate, the spring is connected with the groove clamp through a clamp, and a fixed clamping bolt is connected onto the groove clamp, so that the groove clamp is propped against a groove for welding a subsea pipeline, and the fixed clamping bolt is propped against a welding seam. According to the auxiliary tool for welding and polishing the subsea pipeline, the position of the tool can be rapidly adjusted through the magnetic suction cup along with the change of a polishing and welding area, so that the welding work of the subsea pipeline is guaranteed; and the requirements of subsea pipelines of different groove types are met by replacing the specifications of the groove clamps, the groove clamps abut against the grooves all the time, the fixing clamping bolts abut against the interiors of weld joints, constructors in a welding area and constructors in a polishing area do not interfere with each other, the working performance is reliable, and site construction is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of marine engineering technology, and in particular relates to an auxiliary tooling for welding and grinding of subsea pipelines. Background Technology

[0002] During subsea pipeline laying, to improve efficiency, two people are typically assigned to weld the same joint symmetrically and simultaneously. However, in actual construction, impurities such as oxide scale and slag on the weld surface after welding, which affect weld quality, need to be removed through grinding.

[0003] The sparks and metal filings from grinding interfered with the work of the welding workers on the other side, making it impossible to guarantee their safety. This caused the welding workers to stop, greatly affecting the laying efficiency and increasing the construction cost.

[0004] Therefore, there is an urgent need to design an auxiliary tooling for welding and grinding subsea pipelines to solve the problem of simultaneously grinding and welding both sides of the subsea pipeline weld mentioned above. Utility Model Content

[0005] To address the technical problem mentioned in the background art where sparks and metal filings from grinding affect the work of welding personnel on the opposite side, causing them to stop, an auxiliary tooling for grinding in subsea pipeline welding is provided to solve the problem of simultaneous grinding and welding on both sides of the subsea pipeline weld.

[0006] To achieve the above objectives, the specific technical solution of the auxiliary tooling for welding and grinding subsea pipelines according to this utility model is as follows:

[0007] An auxiliary tooling for welding and grinding subsea pipelines includes a baffle and a magnetic chuck. The magnetic chuck is installed inside the baffle and is attached to the outer wall of the subsea pipeline so that the baffle is arranged along the length of the subsea pipeline. A bevel clamp is provided on the baffle, and a spring is provided between the bevel clamp and the baffle. The spring is connected to the bevel clamp through the clamp. A fixing bolt is connected to the bevel clamp so that the bevel clamp abuts against the bevel of the subsea pipeline welding, and the fixing bolt abuts against the weld.

[0008] Furthermore, the spring includes a first spring and a second spring, which are spaced apart inside the baffle. One end of both the first spring and the second spring is connected to the baffle, and a clip is connected to the side of both the first spring and the second spring away from the baffle.

[0009] Furthermore, the clip includes a first clip and a second clip, one end of the first clip and the second clip are connected to the first spring and the second spring, and the ends of the first clip and the second clip away from the first spring and the second spring abut against the bevel clip.

[0010] Furthermore, the angle between the first and second clips and the upper horizontal plane of the baffle is 15 degrees.

[0011] Furthermore, the magnetic chuck is embedded inside the baffle, and the magnetic chuck is flush with the bottom of the baffle.

[0012] Furthermore, a handle is attached to the side of the baffle away from the magnetic chuck, allowing the baffle to be moved by the handle.

[0013] Furthermore, a groove is provided at the bottom of the baffle, and a bevel clip is provided in the groove.

[0014] Furthermore, the bevel clamp has a groove in the middle, and the fixing bolt slides vertically along the groove.

[0015] Furthermore, a groove is provided inside the baffle, and one end of the fixing bolt is set in the groove, with the side of the fixing bolt away from the baffle abutting against the weld.

[0016] Furthermore, both the first and second clips are U-shaped clips.

[0017] The auxiliary tooling for welding and grinding subsea pipelines of this invention has the following advantages:

[0018] The magnetic chuck allows for rapid adjustment of the tooling position as the grinding and welding areas change, ensuring smooth subsea pipeline welding. Furthermore, by changing the specifications of the bevel clamps, it meets the needs of subsea pipelines with different bevel types, ensuring the bevel clamps are always engaged at the bevel, and the fixing bolts are engaged within the weld, preventing interference between workers in the welding and grinding areas. This application features a simple structure, convenient manufacturing, reliable performance, and ease of on-site construction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the auxiliary tooling for welding and grinding subsea pipelines according to this utility model.

[0020] Explanation of markings in the diagram:

[0021] 1. Baffle; 2. Magnetic suction cup; 3. Bevel clamp; 4. First spring; 5. Second spring; 6. First clip; 7. Second clip; 8. Fixing bolt; 9. Handle. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0024] The following is a reference to the appendix. Figure 1 This invention describes the auxiliary tooling for welding and grinding subsea pipelines.

[0025] like Figure 1 As shown, the auxiliary tooling for welding and grinding subsea pipelines in this utility model includes a baffle 1 and a magnetic chuck 2. The magnetic chuck 2 is set inside the baffle 1 and is attracted to the outer wall of the subsea pipeline so that the baffle is arranged along the length of the subsea pipeline. A bevel clamp 4 is provided on the baffle 1, and a spring is provided between the bevel clamp 4 and the baffle 1. The spring is connected to the bevel clamp 4 through a clamp. A fixing bolt 8 is connected to the bevel clamp 4 so that the bevel clamp 4 abuts against the bevel of the subsea pipeline welding and the fixing bolt 8 abuts against the weld.

[0026] The magnetic chuck 2 allows for quick adjustment of the tooling position as the grinding and welding areas change, ensuring smooth subsea pipeline welding. Furthermore, by changing the specifications of the bevel clamps, the requirements for different bevel types of subsea pipelines can be met, ensuring that the bevel clamp 3 is always engaged at the bevel, and the fixing bolt 8 is engaged within the weld, preventing interference between workers in the welding and grinding areas. This application features a simple structure, convenient manufacturing, reliable performance, and ease of on-site construction.

[0027] Furthermore, such as Figure 1 As shown, the spring includes a first spring 4 and a second spring 5, which are spaced apart inside the baffle 1. One end of each spring is connected to the baffle 1, and a clip is connected to the side of each spring away from the baffle 1. The clip includes a first clip 6 and a second clip 7, one end of which is connected to the first spring 4 and the second spring 5, and the end of each clip away from the first spring 4 and the second spring 5 abuts against the bevel clip 3. The angle between the first clip 6 and the second clip 7 and the upper horizontal plane of the baffle 1 is 15 degrees.

[0028] In this embodiment, preferably, the first spring 4 and the second spring 5 have the same shape and size, one end of the first spring 4 and the second spring 5 are fixedly connected to the baffle 1 respectively, the first spring 4 and the second spring 5 are spaced apart by a certain distance, and the ends of the first spring 4 and the second spring 5 away from the baffle 1 are both fixedly connected with clips.

[0029] The first clip 6 is connected to the end of the first spring 4 away from the baffle 1, and the second clip 7 is connected to the end of the second spring 5 away from the baffle 1. The ends of the first clip 6 and the second clip 7 away from the first spring 4 and the second spring 5 abut against the bevel clip 3.

[0030] Preferably, the bevel clamp 3 is fixed by the first clamp 6 and the second clamp 7 connected to the first spring 4 and the second spring 5, so that the bevel clamp 3 can move up and down and ensure that the bevel clamp 3 always abuts against the bevel of the subsea pipeline, and ensure that the baffle 1 is adsorbed on the outer wall of the subsea pipeline by the magnetic chuck 2. The baffle 1 ensures that the construction personnel welding and grinding on both sides of the subsea pipeline weld do not interfere with each other.

[0031] Furthermore, such as Figure 1 As shown, the magnetic chuck 2 is embedded in the baffle 1, and the bottom of the magnetic chuck 2 is flush with the bottom of the baffle 1; a handle 9 is connected to the side of the baffle 1 away from the magnetic chuck 2, and the baffle 1 can be moved by the handle 9; a groove is provided at the bottom of the baffle 1, and a beveled clip 3 is provided in the groove.

[0032] In this embodiment, the magnetic chuck 2 is embedded in the baffle 1. Preferably, the chuck opening of the magnetic chuck 2 is on the same straight line as the bottom surface of the baffle 1, so that the magnetic chuck 2 is adsorbed on the outer wall of the subsea pipeline. The baffle 1 can stand on the subsea pipeline along the outer wall of the subsea pipeline, so that the welding and grinding workers on both sides of the baffle 1 do not interfere with each other.

[0033] In a preferred embodiment, two magnetic chucks 2 can be provided at the bottom of the baffle 1. The two magnetic chucks 2 are located on both sides of the bevel clamp 3, which can move the baffle 1 along the subsea pipeline at will, preventing the baffle from falling off the outer wall of the subsea pipeline.

[0034] A handle 9 is fixedly connected to the side of the baffle 1 away from the magnetic suction cup 2. Construction personnel can quickly move the baffle 1 through the handle 9 to quickly disassemble or adjust the position of the baffle 1. Preferably, the bottom of the handle 1 has a groove so that the bevel clip 3 can be placed in the groove of the baffle 1.

[0035] Furthermore, such as Figure 1 As shown, the bevel clamp 3 has a groove in the middle, and the fixing bolt 8 slides vertically along the groove; the baffle 1 has a sliding groove inside, one end of the fixing bolt 8 is set in the sliding groove, and the side of the fixing bolt 8 away from the baffle 1 abuts against the weld; the first clamp 6 and the second clamp 7 are both U-shaped clamps.

[0036] In this embodiment, a groove matching the diameter of the fixing bolt 8 is provided in the middle position of the bevel clamp 3. The fixing bolt 8 slides vertically along the groove. Preferably, the end of the fixing bolt 8 is a conical structure. Since the weld between the subsea pipes is U-shaped, the conical structure can ensure that the fixing bolt 8 always abuts against the weld, so as to ensure that the tooling separates the construction personnel from the welding area and the grinding area.

[0037] A groove is made inside the baffle 1 so that the fixing bolt 8 can slide along the groove inside the baffle 1. Preferably, the first clip 6 and the second clip 7 that abut against the bevel clip 3 are both U-shaped clips so that the bevel clip 3 always abuts against the bevel.

[0038] The working principle of the auxiliary tooling for welding and grinding subsea pipelines in this utility model is as follows:

[0039] Construction workers use handle 9 to place baffle 1 on the subsea pipeline that needs to be ground or welded, adjust the position between baffle 1 and pipeline, fix the position with magnetic chuck 2, move the bevel clamp 3 up and down to cover the bevel gap, and fix the bevel clamp 3 with first spring 4 and second spring 5. The baffle 1 can be quickly disassembled and its position adjusted by using handle 9 and moving magnetic chuck 2.

[0040] Based on auxiliary tooling for subsea pipeline welding and grinding, this utility model utilizes a magnetic chuck 2 to quickly adjust the tooling position as the grinding and welding areas change, ensuring the smooth operation of the subsea pipeline welding process. Furthermore, by changing the specifications of the bevel clamp 3, it meets the needs of subsea pipelines with different bevel types, ensuring that the bevel clamp 3 always abuts against the bevel, and the fixing bolt 8 abuts against the weld seam, preventing interference between the welding and grinding personnel. This application features a simple structure, convenient manufacturing, reliable performance, and ease of on-site construction.

[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An auxiliary tooling for welding and grinding subsea pipelines, characterized in that, It includes a baffle and a magnetic chuck. The magnetic chuck is set inside the baffle and is attached to the outer wall of the subsea pipeline so that the baffle is arranged along the length of the subsea pipeline. The baffle is equipped with a bevel clamp, and a spring is set between the bevel clamp and the baffle. The spring is connected to the bevel clamp through the clamp. A fixing bolt is connected to the bevel clamp so that the bevel clamp abuts against the bevel of the subsea pipeline welding, and the fixing bolt abuts against the weld.

2. The auxiliary tooling for welding and grinding subsea pipelines according to claim 1, characterized in that, The spring includes a first spring and a second spring, which are spaced apart inside the baffle. One end of both the first spring and the second spring is connected to the baffle, and a clip is connected to the side of both the first spring and the second spring away from the baffle.

3. The auxiliary tooling for welding and grinding subsea pipelines according to claim 2, characterized in that, The clip includes a first clip and a second clip. One end of the first clip and the second clip are connected to the first spring and the second spring, and the ends of the first clip and the second clip away from the first spring and the second spring abut against the bevel clip.

4. The auxiliary tooling for welding and grinding subsea pipelines according to claim 3, characterized in that, The first and second clips are both at a 15-degree angle to the upper horizontal plane of the baffle.

5. The auxiliary tooling for welding and grinding subsea pipelines according to claim 1, characterized in that, The magnetic chuck is embedded in the baffle, and the magnetic chuck is flush with the bottom of the baffle.

6. The auxiliary tooling for welding and grinding subsea pipelines according to claim 5, characterized in that, A handle is attached to the side of the baffle away from the magnetic chuck, and the baffle can be moved by using the handle.

7. The auxiliary tooling for welding and grinding subsea pipelines according to claim 5, characterized in that, The bottom of the baffle has a groove, and a bevel clip is installed in the groove.

8. The auxiliary tooling for welding and grinding subsea pipelines according to claim 7, characterized in that, The bevel clamp has a groove in the middle, and the fixing bolt slides vertically along the groove.

9. The auxiliary tooling for welding and grinding subsea pipelines according to claim 7, characterized in that, The baffle has a groove inside, and one end of the fixing bolt is set in the groove. The side of the fixing bolt away from the baffle abuts against the weld.

10. The auxiliary tooling for welding and grinding subsea pipelines according to claim 4, characterized in that, Both the first and second clips are U-shaped clips.

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