Nuclear power station pipeline welding tool

Abstract

The utility model discloses a nuclear power station pipeline welding tool, which relates to the technical field of welding tools, and comprises a base, a guide rail is arranged at the top of the base, a sleeve is arranged on the guide rail, support frames are arranged at opening positions on two sides outside the sleeve, telescopic sleeves are arranged on the support frames, and a movable frame is arranged at one end of each telescopic sleeve. A telescopic rod is arranged on the movable frame, a clamping plate is arranged at one end of the telescopic rod, turnover plates are arranged at the two ends of the clamping plate, the two ends of the movable frame make contact with the turnover plates, a side plate is arranged on the supporting frame, and a threaded hole is formed in the end, close to the screw, of the telescopic sleeve. The two movable frames get close to each other and extrude the turnover plate to rotate, the pipeline body is fixed in an auxiliary mode through the turnover plate, the stability of the pipeline during welding is guaranteed, the multiple pipe clamps for fixing branch pipes are arranged on the cross beam, the positions of the pipe clamps and the clamping plates are adjustable, and the pipelines at different positions can be conveniently supported.

Description

Technical Field

[0001] The utility model relates to the technical field of welding tooling, in particular to a welding tooling for nuclear power plant pipelines. Background Technique

[0002] Nuclear power plant pipelines are crucial components in nuclear power plants, used to transport key substances such as nuclear fuel, coolant, and control media to ensure the normal operation of nuclear power plants. Therefore, the welding of nuclear power plant pipelines is a key link in the construction of nuclear power plants, and its quality is directly related to the safe operation of nuclear power plants.

[0003] When docking multiple groups of pipelines, multiple branch pipes need to be welded to the main pipeline. Existing welding equipment does not have corresponding welding tooling, and it is impossible to support and position the welded pipelines, resulting in extremely difficult pipeline welding. The pipelines are prone to movement during welding, affecting welding quality and efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a welding tooling for nuclear power plant pipelines to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A welding tooling for nuclear power plant pipelines includes a base, and further includes:

[0007] A clamping plate. There are guide rails arranged on the top of the base. There are sleeves arranged on the guide rails. Support frames are arranged at the opening positions on both sides of the outside of the sleeves. Telescopic sleeves are arranged on the support frames. One end of the telescopic sleeve is provided with a movable frame. Telescopic rods are arranged on the movable frame. One end of the telescopic rod is provided with a clamping plate. Flipping plates are arranged at both ends of the clamping plate. Both ends of the movable frame are in contact with the flipping plates. Side plates are arranged on the support frames. Screws are arranged on the side plates. A threaded hole is opened at one end of the telescopic sleeve close to the screw. One end of the screw penetrates into the threaded hole and is in threaded cooperation with it;

[0008] A pipe clamp. A fixing frame is arranged outside the base. A cross beam is arranged on the fixing frame. A slider is arranged on the cross beam. A fixed clamp is arranged on the slider. A movable clamp is rotatably arranged at one end of the fixed clamp. The fixed clamp and the movable clamp form a pipe clamp for fixing pipelines. A locking bolt is arranged between the fixed clamp and the movable clamp;

[0009] A fixing mechanism, which is connected to the support frame and fixes the pipeline between the clamping plates by driving the two support frames to approach each other.

[0010] Based on the above technical solutions, the utility model further provides the following optional technical solutions:

[0011] In an alternative solution: The fixing mechanism includes a connecting plate, a chuck and a bolt. A chuck is rotatably arranged at the top of the sleeve. A connecting plate is arranged on the chuck. A connecting column is arranged inside the support frame. One end of the connecting plate is rotatably connected to the connecting column. A fixing block is arranged on the sleeve. A bolt is slidably arranged on the fixing block. A fixing groove matched with the bolt is formed on the chuck.

[0012] In an alternative solution: A return spring is sleeved outside the bolt. One end of the return spring is connected to the fixing block.

[0013] In an alternative solution: A limiting block is arranged at the bottom of the sleeve. The two limiting blocks are slidably arranged on both sides outside the base. A fixing bolt is arranged on the limiting block.

[0014] In an alternative solution: Supporting feet are arranged below the base. Threaded rods are arranged on both the supporting feet and the base. A rotating frame is arranged between the two threaded rods.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The nuclear power plant pipeline welding tooling can support and fix the pipeline and the branch pipe. The fixing mechanism drives the two support frames to approach each other. The support frames drive the clamping plates to approach each other and squeeze and fix the pipeline. The screw drives the telescopic sleeve and the movable frame to move horizontally. The two movable frames approach each other and squeeze the turning plate to rotate. The pipeline body is assisted and fixed by the turning plate to ensure the stability of the pipeline during welding. A plurality of pipe clamps for fixing the branch pipes are arranged on the cross beam. The positions of the pipe clamps and the clamping plates are adjustable, which is convenient for supporting pipelines at different positions and effectively improves the welding efficiency of the nuclear power plant pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the nuclear power plant pipeline welding tooling.

[0018] Figure 2 It is a structural schematic diagram of the pipe clamp in the nuclear power plant pipeline welding tooling.

[0019] Figure 3 It is a structural schematic diagram of the clamping plate in the nuclear power plant pipeline welding tooling.

[0020] Figure 4 It is a structural schematic diagram of the movable frame in the nuclear power plant pipeline welding tooling.

[0021] Annotation of reference numerals: 1 - base, 2 - guide rail, 3 - pipe body, 4 - branch pipe, 5 - rotating frame, 6 - threaded rod, 7 - support leg, 8 - sleeve, 801 - fixing block, 802 - limiting block, 9 - support frame, 10 - fixing frame, 11 - cross beam, 12 - slider, 13 - fixing clamp, 14 - movable clamp, 141 - locking bolt, 15 - movable frame, 16 - clamping plate, 17 - turning plate, 18 - telescopic rod, 19 - telescopic sleeve, 191 - limiting plate, 20 - connecting column, 21 - chuck, 211 - fixing groove, 22 - connecting plate, 23 - side plate, 24 - screw rod, 25 - pin, 26 - return spring. Detailed implementation manners

[0022] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments; in the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shapes, thicknesses or heights of the components can be enlarged or reduced. Each embodiment listed in the present utility model is only used to illustrate the present utility model, and is not used to limit the scope of the present utility model. Any obvious modification or change made to the present utility model does not depart from the spirit and scope of the present utility model.

[0023] In one embodiment, as Figures 1-4 shown, a pipe welding tooling for a nuclear power plant includes a base 1, and further includes:

[0024] A clamping plate 16, a guide rail 2 is arranged on the top of the base 1, a plurality of sleeves 8 are slidably arranged inside the guide rail 2, support frames 9 are slidably arranged at the open positions on both sides of the outside of the sleeve 8, a telescopic sleeve 19 is arranged on the support frame 9, and a limiting plate 191 is arranged on the telescopic sleeve 19, so that the telescopic sleeve 19 cannot rotate and can only slide along the support frame 9. One end of the telescopic sleeve 19 is fixedly provided with a movable frame 15, a telescopic rod 18 is arranged on the movable frame 15, a clamping plate 16 is arranged at one end of the telescopic rod 18, and the telescopic rod 18 is composed of two sets of sleeves and an internal spring, realizing the elastic connection between the clamping plate 16 and the movable frame 15. Turning plates 17 are rotatably arranged at both ends of the clamping plate 16, and both the clamping plate 16 and the turning plate 17 are arc-shaped plates. Both ends of the movable frame 15 are in contact with the turning plate 17. A side plate 23 is arranged on the support frame 9, a screw rod 24 is rotatably arranged on the side plate 23, a threaded hole is opened at one end of the telescopic sleeve 19 close to the screw rod 24, one end of the screw rod 24 penetrates into the threaded hole and is in threaded cooperation with it. The screw rod 24 rotates to drive the telescopic sleeve 19 to move, and the telescopic sleeve 19 drives the movable frame 15 to move horizontally;

[0025] Pipe clamp. A fixing frame 10 is arranged outside the base 1. A cross beam 11 is horizontally arranged on the fixing frame 10. A plurality of sliders 12 are slidably arranged on the cross beam 11. A fixing clamp 13 is fixedly arranged on the slider 12. One end of the fixing clamp 13 is rotatably provided with a movable clamp 14. The fixing clamp 13 and the movable clamp 14 form a pipe clamp for fixing a pipe. A locking bolt 141 is arranged between the fixing clamp 13 and the movable clamp 14.

[0026] Fixing mechanism, connected to the support frame 9, and fixes the pipe between the clamping plates 16 by driving the two support frames 9 to approach each other.

[0027] The nuclear power plant pipeline welding tooling drives the two support frames 9 to approach each other through the fixing mechanism. The pipeline body 3 passes through multiple groups of clamping plates 16. The support frame 9 drives the clamping plates 16 to approach each other. The clamping plates 16 squeeze and fix the pipeline body 3. Turn the screw rod 24 on the support frame 9. The screw rod 24 drives the telescopic sleeve 19 and the movable frame 15 to move horizontally. The two movable frames 15 approach each other. The two ends of the movable frame 15 squeeze and rotate the turning plate 17. The turning plate 17 is used to assist in fixing the pipeline body 3 to ensure the stability of the pipeline during welding. As an embodiment, the left - right, up - down positions of the various components shown in the drawings are only an arrangement method, and the specific positions are set according to specific needs.

[0028] In one embodiment, as Figures 1-3 shown, the fixing mechanism includes a connecting plate 22, a chuck 21 and a pin 25. The chuck 21 is rotatably arranged at the top of the sleeve 8. The connecting plate 22 is rotatably arranged on the chuck 21. A connecting column 20 is arranged inside the support frame 9. One end of the connecting plate 22 is rotatably connected to the connecting column 20. The chuck 21 rotates and pulls the support frame 9 through the connecting plate 22, so that the two support frames 9 approach each other. A fixing block 801 is arranged on the sleeve 8. The pin 25 is slidably arranged on the fixing block 801. A fixing groove 211 matching with the pin 25 is arranged on the chuck 21. The pin 25 penetrates into the fixing groove 211 and fixes the chuck 21.

[0029] In one embodiment, as Figure 3 shown, a return spring 26 is sleeved outside the pin 25. One end of the return spring 26 is connected to the fixing block 801. The return spring 26 pulls the pin 25, so that the pin 25 closely adheres to the inside of the chuck 21.

[0030] In one embodiment, as Figure 3 shown, a limit block 802 is arranged at the bottom of the sleeve 8. The two limit blocks 802 are slidably arranged on both sides outside the base 1. A fixing bolt is arranged on the limit block 802, which can fix the sleeve 8.

[0031] In one embodiment, as Figure 1 shown, legs 7 are provided below the base 1. Threaded rods 6 are provided on both the legs 7 and the base 1. A rotating frame 5 is provided between the two threaded rods 6. The rotating frame 5 rotates to adjust the support height of the base 1.

[0032] In the above embodiment of the present utility model, a nuclear power plant pipeline welding tooling is provided. The welding tooling is moved below the pipeline body 3 to be welded. The rotating frame 5 below the base 1 is turned to adjust the use height of the base 1 and the clamping plate 16. The chuck 21 above the sleeve 8 is toggled. The chuck 21 drives the two support frames 9 to approach each other through the connecting plate 22. The support frames 9 drive the clamping plates 16 to approach each other and squeeze and fix the pipeline body 3. The screw 24 on the support frame 9 is turned. The screw 24 drives the telescopic sleeve 19 and the movable frame 15 to move horizontally. The two ends of the movable frame 15 squeeze the turning plate 17 to rotate, and the turning plate 17 is used to assist in fixing the pipeline body 3; the slider 12 moves along the cross beam 11, and the branch pipe 4 to be welded is fixed by a pipe clamp, so that the bottoms of a plurality of branch pipes 4 are in contact with the pipeline body 3, facilitating subsequent welding operations.

[0033] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A pipe welding tooling for nuclear power plants, including a base, characterized in that, Further included are: A clamping plate. A guide rail is arranged on the top of the base. A sleeve is arranged on the guide rail. Support frames are arranged at the opening positions on both sides of the outside of the sleeve. Telescopic sleeves are arranged on the support frames. A movable frame is arranged at one end of the telescopic sleeve. A telescopic rod is arranged on the movable frame. A clamping plate is arranged at one end of the telescopic rod. Flipping plates are arranged at both ends of the clamping plate. Both ends of the movable frame are in contact with the flipping plates. A side plate is arranged on the support frame. A screw rod is arranged on the side plate. A threaded hole is opened at one end of the telescopic sleeve close to the screw rod. One end of the screw rod penetrates into the threaded hole and is in threaded cooperation with it. A pipe clamp. A fixing frame is arranged outside the base. A cross beam is arranged on the fixing frame. A slider is arranged on the cross beam. A fixed clamp is arranged on the slider. A movable clamp is rotatably arranged at one end of the fixed clamp. The fixed clamp and the movable clamp form a pipe clamp for fixing a pipe. A locking bolt is arranged between the fixed clamp and the movable clamp. A fixing mechanism, which is connected to the support frame and fixes the pipe between the clamping plates by driving the two support frames to approach each other.

2. The nuclear power plant pipeline welding tooling according to claim 1, wherein, The fixing mechanism includes a connecting plate, a chuck and a plug pin. A chuck is rotatably arranged on the top of the sleeve. A connecting plate is arranged on the chuck. A connecting column is arranged inside the support frame. One end of the connecting plate is rotatably connected to the connecting column. A fixing block is arranged on the sleeve. A plug pin is slidably arranged on the fixing block. A fixing groove matched with the plug pin is opened on the chuck.

3. The nuclear power plant pipeline welding tooling according to claim 2, characterized in that, A return spring is sleeved outside the plug pin. One end of the return spring is connected to the fixing block.

4. The nuclear power plant pipeline welding tooling according to claim 1, wherein, Limit blocks are arranged at the bottom of the sleeve. The two limit blocks are slidably arranged on both sides outside the base. Fixing bolts are arranged on the limit blocks.

5. The nuclear power plant pipeline welding tooling according to claim 1, characterized in that, Support feet are arranged below the base. Threaded rods are arranged on both the support feet and the base. A rotating frame is arranged between the two threaded rods.

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