Butt gap positioning device for welding pipe orifice of power station boiler pipeline

Abstract

A power station boiler pipeline orifice welding alignment gap positioning device comprises a vertical frame, a first sliding block, a transverse frame and a clamping and fixing mechanism, a first sliding groove is formed in the side wall of the vertical frame, the first sliding block is inserted into the first sliding groove and slides along the first sliding groove, the transverse frame is fixedly connected with the side wall of the first sliding block, and the clamping and fixing mechanism is arranged on the transverse frame. According to the power station boiler pipeline pipe opening welding alignment gap positioning device, the first sliding groove is formed in the side wall of the vertical frame, the transverse frame slides along the first sliding groove through the first sliding block, the distance between the two clamping and fixing mechanisms is adjusted, and then the alignment gap between the two pipe openings is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning tooling, and more specifically, to a positioning device for the gap between the welding ends of power station boiler pipelines. Background Art

[0002] During the installation and construction of thermal power plant equipment and chemical plant equipment, there are a large number of small-diameter pipes for conveying steam or water, which need to be completed by on-site butt welding. There are high requirements for the accuracy of the butt welding of these pipes. It is necessary to ensure that the misalignment of the two pipes does not exceed the requirements of the construction standards after the butt welding, so as to meet the requirements of the construction specifications and ensure the quality of the project.

[0003] Patent publication number CN212330230U discloses a clamping and positioning fixture for butt welding of small-diameter soda and water pipes. A lead screw nut is fixedly connected to the upper end of a C-shaped handle, a V-shaped seat and a lower jaw angle steel are fixedly disposed at the lower end of the C-shaped handle, a lead screw is threaded into the lead screw nut, a lifting block is disposed directly below the lead screw, a push-pull ball head is movably disposed in a cubic countersunk hole, a locking plate is fixedly disposed on the upper top surface of the cubic countersunk hole, an upper jaw angle steel is disposed on the lower bottom surface of the lifting block, and between the upper and lower jaw angle steels, a butt-welded left and right pipe ends are clamped. This patent is simple to use and provides precise butt-welding positioning, but it does not provide for adjusting the butt-welding gap between the two pipe ends. Utility Model Content

[0004] The utility model aims to overcome the problem that the butt gap between two pipe openings cannot be adjusted and provides a butt gap positioning device for the welding butt gap of pipe openings of power station boiler pipelines.

[0005] A device for positioning the gap between the welded ends of a power station boiler pipeline comprises a vertical frame, a first slider, a horizontal frame and a clamping mechanism. The vertical frame sidewall is provided with a first slide groove, the first slider is inserted into the first slide groove and slides along the first slide groove, the horizontal frame is fixedly connected to the sidewall of the first slider, and the clamping mechanism is arranged on the horizontal frame.

[0006] Furthermore, a bidirectional screw rod is inserted into the first sliding groove, the bidirectional screw rod is rotatably connected to the vertical frame, and the first sliding block is sleeved on the bidirectional screw rod and slides along the first sliding groove through the bidirectional screw rod.

[0007] Furthermore, a groove is opened inside the top of the vertical frame, the top of the bidirectional screw rod passes through the groove and is fixedly provided with a first bevel gear, a first rotary handle is inserted into the side wall of the top of the vertical frame, the first rotary handle passes through the groove and is rotatably connected to the side wall of the vertical frame, the part of the first rotary handle inserted into the groove is fixedly provided with a second bevel gear, the first bevel gear and the second bevel gear are engaged with each other, and a first limiting assembly is provided between the first rotary handle and the vertical frame.

[0008] Furthermore, the first limiting assembly includes a first limiting screw and a first limiting nut. A first limiting groove is opened on the top side wall of the vertical frame. One end of the first limiting screw is inserted into the first limiting groove and slides along the first limiting groove. The other end of the first limiting screw passes through the first limiting groove and the first handle in sequence. The first limiting nut is sleeved on the part of the first limiting screw passing through the first handle and is threadedly connected to the first limiting screw. The first limiting nut is in contact with the side wall of the first handle.

[0009] Furthermore, the clamping mechanism includes a first clamping jaw, a second slider and a second clamping jaw. The first clamping jaw is fixedly arranged on the side wall of the horizontal frame. The side wall of the horizontal frame is provided with a second sliding groove. The second slider is inserted into the second sliding groove and slides along the second sliding groove. The second clamping jaw is fixedly connected to the side wall of the second slider.

[0010] Furthermore, the clamping mechanism also includes a threaded rod, which is inserted into the second sliding groove and is rotatably connected to the horizontal frame. The second slider is sleeved on the threaded rod and slides along the second sliding groove through the threaded rod. One end of the threaded rod passes through the side wall of the horizontal frame and is fixed with a second handle for rotating the threaded rod. A second limiting assembly is provided between the second slider and the horizontal frame.

[0011] Furthermore, the second limiting assembly includes a second limiting screw and a second limiting nut, a second limiting groove is opened on the side wall of the horizontal frame, the second limiting groove is connected to the second sliding groove, one end of the second limiting screw is fixedly connected to the side wall of the second slider, the other end of the second limiting screw passes through the second limiting groove and slides along the second limiting groove, the second limiting nut is sleeved on the part of the second limiting screw passing through the second limiting groove and is threadedly connected to the second limiting screw, and the second limiting nut is in contact with the side wall of the horizontal frame.

[0012] Furthermore, a spring is sleeved on the threaded rod, one end of the spring is fixedly connected to the side wall of the second slider, and the other end of the spring is fixedly connected to the inner wall of the second sliding groove.

[0013] Furthermore, a third limiting groove is provided on the side wall of the vertical frame, and a limiting block is fixedly provided on the side wall of the horizontal frame. The limiting block is inserted into the third limiting groove and slides along the third limiting groove.

[0014] Furthermore, a handle for assisting the movement of the device is fixedly provided on the side wall of the vertical frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] ① The utility model provides a device for positioning the gap between the welding ends of the power station boiler pipeline. The side wall of the vertical frame is provided with a first slide groove. The horizontal frame slides along the first slide groove through the first slider to adjust the distance between the two clamping mechanisms, thereby adjusting the gap between the two pipe ends.

[0017] ② The utility model provides a power station boiler pipeline welding butt gap positioning device, in which a second slide groove is opened on the side wall of the horizontal frame, and the second clamping jaw slides along the second slide groove through the second slider, and the distance between the first clamping jaw and the second clamping jaw is adjusted. Pipes of different diameters can be clamped according to actual conditions, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 The utility model is a schematic diagram of the overall structure of a device for positioning gaps between pipe openings of boiler pipes in power stations.

[0020] Figure 2 It is a cross-sectional view of the internal structure of the first chute in the present utility model.

[0021] Figure 3 It is a schematic diagram of the specific structure of the clamping mechanism in the present utility model.

[0022] Figure 4 It is a cross-sectional view of the internal structure of the third limiting groove in the utility model.

[0023] In the figure: 1. vertical frame; 2. first slider; 3. horizontal frame; 4. first slide groove; 5. bidirectional screw rod; 6. groove; 7. first bevel gear; 8. first rotary handle; 9. second bevel gear; 10. first limiting screw; 11. first limiting nut; 12. first limiting groove; 13. first clamping jaw; 14. second slider; 15. second clamping jaw; 16. second slide groove; 17. threaded rod; 18. second limiting screw; 19. second limiting nut; 20. second limiting groove; 21. spring; 22. third limiting groove; 23. limiting block; 24. handle; 25. second rotary handle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1 、 Figure 2As shown, a power station boiler pipeline welding butt gap positioning device includes a vertical frame 1, a first slider 2, a horizontal frame 3 and a clamping mechanism. The side wall of the vertical frame 1 is provided with a first slide groove 4, the first slider 2 is inserted into the first slide groove 4 and slides along the first slide groove 4, the horizontal frame 3 is fixedly connected to the side wall of the first slider 2, and the clamping mechanism is arranged on the horizontal frame 3. Specifically, the side wall of the vertical frame 1 is provided with a first slide groove 4, the first slider 2 is inserted into the first slide groove 4 and interacts along the first slide groove 4, the horizontal frame 3 is welded to the side wall of the first slider 2, and the horizontal frame 3 is provided with a clamping mechanism.

[0026] In the present invention, a first slide groove 4 is provided on the side wall of the vertical frame 1, and the horizontal frame 3 slides along the first slide groove 4 through the first slider 2 to adjust the distance between the two clamping mechanisms and further adjust the gap between the two pipe openings.

[0027] A bidirectional screw rod 5 is inserted inside the first slide groove 4, and the bidirectional screw rod 5 is rotatably connected to the vertical frame 1. The first slider 2 is sleeved on the bidirectional screw rod 5 and slides along the first slide groove 4 through the bidirectional screw rod 5. Specifically, a bidirectional screw rod 5 is inserted inside the first slide groove 4, and the bidirectional screw rod 5 is rotatably connected to the vertical frame 1. A through hole is opened on the first slider 2, and the first slider 2 is sleeved on the bidirectional screw rod 5 through the through hole and slides along the first slide groove 4 through the bidirectional screw rod 5.

[0028] A groove 6 is provided inside the top of the vertical frame 1, and the top of the two-way screw rod 5 passes through the groove 6 and is fixedly provided with a first bevel gear 7. A first rotary handle 8 is inserted into the side wall of the top of the vertical frame 1, and the first rotary handle 8 passes through the groove 6 and is rotatably connected to the side wall of the vertical frame 1. The part of the first rotary handle 8 inserted into the groove 6 is fixedly provided with a second bevel gear 9, and the first bevel gear 7 and the second bevel gear 9 are meshed with each other. A first limiting assembly is provided between the first rotary handle 8 and the vertical frame 1. Specifically, a groove 6 is provided inside the top of the vertical frame 1, and the top of the two-way screw rod 5 passes through the groove 6 and is welded with the first bevel gear 7. A first rotary handle 8 is inserted into the top of the side wall of the vertical frame 1, and the first rotary handle 8 passes through the groove 6 and is rotatably connected to the side wall of the vertical frame 1. The part of the first rotary handle 8 inserted into the groove 6 is welded with the second bevel gear 9, and the first bevel gear 7 and the second bevel gear 9 are meshed with each other. A first limiting assembly is provided between the first rotary handle 8 and the vertical frame 1.

[0029] The first limiting assembly includes a first limiting screw 10 and a first limiting nut 11. A first limiting groove 12 is opened on the top side wall of the vertical frame 1. One end of the first limiting screw 10 is inserted into the first limiting groove 12 and slides along the first limiting groove 12. The other end of the first limiting screw 10 passes through the first limiting groove 12 and the first rotary handle 8 in sequence. The first limiting nut 11 is sleeved on the part of the first limiting screw 10 that passes through the first rotary handle 8 and is threadedly connected to the first limiting screw 10. The first limiting nut 11 is connected to the first limiting screw 10. The side walls of the handle 8 are in contact, specifically, a first limiting groove 12 is opened at the top of the vertical frame 1, one end of the first limiting screw 10 is inserted into the inside of the first limiting groove 12 and slides along the first limiting groove 12, and the other end of the first limiting screw 10 passes through the first limiting groove 12 and the first handle 8 in sequence, and the first limiting nut 11 is sleeved on the part of the first limiting screw 10 passing through the first handle 8 and is threadedly connected to the first limiting screw 10, and the first limiting nut 11 is in contact with the side wall of the first handle 8.

[0030] like Figure 3 As shown, the clamping mechanism includes a first clamping jaw 13, a second slider 14 and a second clamping jaw 15. The first clamping jaw 13 is fixedly arranged on the side wall of the transverse frame 3, and a second slide groove 16 is provided on the side wall of the transverse frame 3. The second slider 14 is inserted into the second slide groove 16 and slides along the second slide groove 16. The second clamping jaw 15 is fixedly connected to the side wall of the second slider 14. Specifically, the first clamping jaw 13 is welded to one end of the side wall of the transverse frame 3, and a second slide groove 16 is provided at the other end of the side wall of the transverse frame 3. The second slider 14 is inserted into the second slide groove 16 and slides along the second slide groove 16, and the second clamping jaw 15 is welded to the side wall of the second slider 14.

[0031] In the present utility model, a second slide groove 16 is provided on the side wall of the transverse frame 3, and the second clamping jaw 15 slides along the second slide groove 16 through the second slider 14. The distance between the first clamping jaw 13 and the second clamping jaw 15 is adjusted, and pipes of different calibers can be clamped according to actual conditions, thereby improving the applicability of the device.

[0032] The clamping mechanism also includes a threaded rod 17, which is inserted into the second slide groove 16 and is rotatably connected to the cross frame 3. The second slider 14 is sleeved on the threaded rod 17 and slides along the second slide groove 16 through the threaded rod 17. One end of the threaded rod 17 passes through the side wall of the cross frame 3 and is fixedly provided with a second handle 25 for rotating the threaded rod 17. A second limit assembly is provided between the second slider 14 and the cross frame 3. Specifically, the threaded rod 17 is inserted into the second slide groove 16 and is rotatably connected to the cross frame 3. A through hole is opened on the second slider 14. The second slider 14 is sleeved on the threaded rod 17 and slides along the second slide groove 16 through the threaded rod 17. One end of the threaded rod 17 passes through the side wall of the cross frame 3 and is welded with a second handle 25 for rotating the threaded rod 17. A second limit assembly is provided between the second slider 14 and the cross frame 3.

[0033] The second limiting assembly includes a second limiting screw 18 and a second limiting nut 19. A second limiting groove 20 is opened on the side wall of the transverse frame 3. The second limiting groove 20 is communicated with the second slide groove 16. One end of the second limiting screw 18 is fixedly connected to the side wall of the second slider 14. The other end of the second limiting screw 18 passes through the second limiting groove 20 and slides along the second limiting groove 20. The second limiting nut 19 is sleeved on the part of the second limiting screw 18 that passes through the second limiting groove 20 and is threadedly connected to the second limiting screw 18. The second limiting nut 19 is in contact with The side walls of the transverse frame 3 are in contact, specifically, a second limiting groove 20 is opened on the side wall of the transverse frame 3, the second limiting groove 20 is connected to the second slide groove 16, one end of the second limiting screw 18 is welded to the side wall of the second slider 14, the other end of the second limiting screw 18 passes through the second limiting groove 20 and slides along the second limiting groove 20, the second limiting nut 19 is sleeved on the part of the second limiting screw 18 passing through the second limiting groove 20 and is threadedly connected to the second limiting screw 18, and the second limiting nut 19 is in contact with the side wall of the transverse frame 3.

[0034] A spring 21 is sleeved on the threaded rod 17, one end of the spring 21 is fixedly connected to the side wall of the second slider 14, and the other end of the spring 21 is fixedly connected to the inner wall of the second slide groove 16. Specifically, a spring 21 is sleeved on the threaded rod 17, one end of the spring 21 is welded to the side wall of the second slider 14, and the other end of the spring 21 is welded to the inner wall of the second slide groove 16.

[0035] like Figure 4 As shown, a third limiting groove 22 is provided on the side wall of the vertical frame 1, and a limiting block 23 is fixedly provided on the side wall of the horizontal frame 3. The limiting block 23 is inserted into the third limiting groove 22 and slides along the third limiting groove 22. Specifically, the third limiting groove 22 is provided on the side wall of the vertical frame 1, and the limiting block 23 is welded on the side wall of the horizontal frame 3. The limiting block 23 is inserted into the third limiting groove 22 and slides along the third limiting groove 22.

[0036] A handle 24 for assisting the moving device is fixedly provided on the side wall of the vertical frame 1 . Specifically, the handle 24 for assisting the moving device is welded on the side wall of the vertical frame 1 .

[0037] The working principle of the power station boiler pipe welding butt gap positioning device in this embodiment is:

[0038] When the second screw rod 17 is rotated, the first screw rod 17 and the second screw rod 17 are rotated, and the second slider 14 is rotated and slides along the second slide groove 16. The second clamping jaw 15 is moved with the second slider 14 until the first clamping jaw 13 and the second clamping jaw 15 are in contact with the side wall of the pipe. The second limiting nut 19 is tightened to fix the position of the second clamping jaw 15. The first screw rod 8 is rotated, the second bevel gear 9 is rotated with the first screw rod 8, the first bevel gear 7 is rotated with the second bevel gear 9, the bidirectional screw rod 5 is rotated with the second bevel gear 9, the first slider 2 is rotated with the bidirectional screw rod 5 and slides along the first slide groove 4, the cross frame 3 is moved with the first slider 2, the first clamping jaw 13 and the second clamping jaw 15 are moved with the cross frame 3, and the pipe is moved to an appropriate matching gap with the first clamping jaw 13 and the second clamping jaw 15. The first limiting nut 11 is tightened to fix the matching gap between the two pipe openings.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for positioning the gap between the welding ends of power station boiler pipes, characterized by: The utility model comprises a vertical frame (1), a first sliding block (2), a horizontal frame (3) and a clamping mechanism, wherein a first sliding groove (4) is provided on a side wall of the vertical frame (1), the first sliding block (2) is inserted into the inside of the first sliding groove (4) and slides along the first sliding groove (4), the horizontal frame (3) is fixedly connected to the side wall of the first sliding block (2), and the clamping mechanism is arranged on the horizontal frame (3).

2. The device for positioning the gap between the pipe ends of a power station boiler pipe according to claim 1, characterized in that: A bidirectional screw rod (5) is inserted into the first slide groove (4), and the bidirectional screw rod (5) is rotatably connected to the vertical frame (1). The first sliding block (2) is sleeved on the bidirectional screw rod (5) and slides along the first slide groove (4) through the bidirectional screw rod (5).

3. The device for positioning the gap between the pipe openings of a power station boiler according to claim 2, characterized in that: A groove (6) is provided inside the top of the vertical frame (1); the top of the bidirectional screw rod (5) passes through the groove (6) and is fixedly provided with a first bevel gear (7); a first rotary handle (8) is inserted into the side wall of the top of the vertical frame (1); the first rotary handle (8) passes through the groove (6) and is rotatably connected to the side wall of the vertical frame (1); a second bevel gear (9) is fixedly provided on the portion of the first rotary handle (8) that penetrates into the groove (6); the first bevel gear (7) and the second bevel gear (9) are engaged with each other; a first limiting component is provided between the first rotary handle (8) and the vertical frame (1).

4. The device for positioning the gap between the welding ends of a power station boiler pipe according to claim 3, characterized in that: The first limiting assembly includes a first limiting screw (10) and a first limiting nut (11); a first limiting groove (12) is provided on the top side wall of the vertical frame (1); one end of the first limiting screw (10) is inserted into the first limiting groove (12) and slides along the first limiting groove (12); the other end of the first limiting screw (10) passes through the first limiting groove (12) and the first rotary handle (8) in sequence; the first limiting nut (11) is sleeved on the portion of the first limiting screw (10) passing through the first rotary handle (8) and is threadedly connected to the first limiting screw (10); the first limiting nut (11) contacts the side wall of the first rotary handle (8).

5. The device for positioning the gap between the pipe ends of power station boiler pipes according to claim 1, characterized in that: The clamping mechanism comprises a first clamping jaw (13), a second slider (14) and a second clamping jaw (15), wherein the first clamping jaw (13) is fixedly arranged on the side wall of the transverse frame (3), the side wall of the transverse frame (3) is provided with a second sliding groove (16), the second slider (14) is inserted into the second sliding groove (16) and slides along the second sliding groove (16), and the second clamping jaw (15) is fixedly connected to the side wall of the second slider (14).

6. The device for positioning the gap between the welding ends of power station boiler pipes according to claim 5, characterized in that: The clamping mechanism further includes a threaded rod (17), the threaded rod (17) is inserted into the second sliding groove (16) and is rotatably connected to the transverse frame (3), the second slider (14) is sleeved on the threaded rod (17) and slides along the second sliding groove (16) through the threaded rod (17), one end of the threaded rod (17) passes through the side wall of the transverse frame (3) and is fixedly provided with a second rotary handle (25) for rotating the threaded rod (17), and a second limiting component is provided between the second slider (14) and the transverse frame (3).

7. The device for positioning gap between welding ends of power station boiler pipes according to claim 6, characterized in that: The second limiting assembly includes a second limiting screw (18) and a second limiting nut (19); a second limiting groove (20) is provided on the side wall of the transverse frame (3); the second limiting groove (20) is communicated with the second sliding groove (16); one end of the second limiting screw (18) is fixedly connected to the side wall of the second sliding block (14); the other end of the second limiting screw (18) passes through the second limiting groove (20) and slides along the second limiting groove (20); the second limiting nut (19) is sleeved on the portion of the second limiting screw (18) passing through the second limiting groove (20) and is threadedly connected to the second limiting screw (18); the second limiting nut (19) contacts the side wall of the transverse frame (3).

8. The device for positioning gap between welding ends of power station boiler pipes according to claim 6, characterized in that: A spring (21) is sleeved on the threaded rod (17), one end of the spring (21) is fixedly connected to the side wall of the second slider (14), and the other end of the spring (21) is fixedly connected to the inner wall of the second sliding groove (16).

9. The device for positioning gap between welding ends of power station boiler pipes according to claim 1, characterized in that: The side wall of the vertical frame (1) is provided with a third limiting groove (22), and the side wall of the horizontal frame (3) is fixedly provided with a limiting block (23), and the limiting block (23) is inserted into the third limiting groove (22) and slides along the third limiting groove (22).

10. The device for positioning gap between welding ends of power station boiler pipes according to claim 1, characterized in that: A handle (24) for assisting the movement of the device is fixedly provided on the side wall of the vertical frame (1).

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