Clamping and fixing device for nuclear power welding

Abstract

The utility model relates to the technical field of nuclear power installation, in particular to a clamping and fixing device for nuclear power welding, which comprises a spot welding locking component and a leveler, and further comprises a first pipe fitting and a second pipe fitting, and the spot welding locking component is arranged between the first pipe fitting and the second pipe fitting; the leveler is mounted on the base; the adjusting mechanism is arranged on the base and comprises a mounting groove and a supporting groove, the mounting groove is formed in the base, by rotating a threaded rod, the threaded rod can conveniently drive a second clamping plate to move, the first clamping plate and the second clamping plate can conveniently clamp and fix a second pipe fitting, and the stability of the second pipe fitting is guaranteed; the threaded shaft, the threaded groove, the supporting groove and the like are matched conveniently, the supporting block, the supporting plate, the second pipe fitting and the like are driven to ascend and descend, the applicability of the whole device is improved, and spot welding fixing and welding can be conveniently conducted on the first pipe fitting and the second pipe fitting through cooperation of a spot welding locking assembly, a leveler and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power installation, in particular to a clamping and fixing device for nuclear power welding. Background Art

[0002] During the prefabrication process of nuclear island pipelines in nuclear power plants, many pipeline welding operations are involved. Pipeline welds are required to be connected in the form of butt welding. To ensure the quality of butt welding and welding, the commonly used method is: a general worker uses a 15*10*5mm iron block to butt the welded weld at the weld position to adjust the angle, and another general worker uses a level to ensure that the pipeline reaches the flatness of the welding under the welded pipeline. Finally, the welder first spot welds the welded pipeline, and then welds the weld after ensuring that the angle and flatness meet the requirements of the drawing. After completion, the grinder uses a grinder to grind off the 15*10*5mm spot fixation block.

[0003] After searching, the utility model patent with Chinese patent publication (announcement) number CN212946320U discloses a nuclear power pipeline assembly device, which is roughly described as comprising: a spot welding locking component, a leveling component, a first pipe fitting and a second pipe fitting; the spot welding locking component comprises: a first steel plate and a second steel plate vertically fixedly connected, when in use, the spot welding locking component and the leveling component fix the pipe fitting to be welded, and use the leveler to level it, that is, the accurate docking of the pipe fitting is completed, and subsequent welding can be directly performed, which is simple to operate, safe and reliable; and it saves manpower and has high efficiency in on-site construction assembly. However, the above device still has certain shortcomings. For example, when the above device limits the second pipe fitting, it uses a card point and a magnet to limit the position, which is not convenient for pipe fittings of different specifications, and the magnet adsorption limit stability is poor, and the above device is not convenient for adjusting the height of the second pipe fitting according to the height of the first pipe fitting. When used on site, the applicability has certain shortcomings. For this reason, we propose a clamping and fixing device for nuclear power welding. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a clamping and fixing device for nuclear power welding to solve the problem that the prior art proposed in the background technology uses card points and magnet limiters, which is not convenient for application to pipes of different specifications, and the stability of the magnet adsorption limiter is poor. In addition, the above device is not convenient for adjusting the height of the second pipe according to the height of the first pipe. When used on site, there are certain deficiencies in applicability.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A clamping and fixing device for nuclear power welding, including a spot welding locking assembly and a leveler, and also including:

[0008] A first pipe fitting and a second pipe fitting, wherein the spot welding locking assembly is arranged between the first pipe fitting and the second pipe fitting;

[0009] A base, on which the leveler is mounted;

[0010] An adjustment mechanism, wherein the adjustment mechanism is arranged on the base, and the adjustment mechanism comprises a mounting groove and a supporting groove, wherein the mounting groove is arranged on the base, wherein the supporting groove is fixedly connected to the base, wherein a supporting block is slidably connected in the supporting groove, wherein a threaded groove is arranged on the supporting block, wherein a threaded shaft is rotatably connected in the supporting groove, wherein the threaded shaft is threadedly connected in the threaded groove, wherein a motor is installed in the mounting groove, wherein the output end of the motor penetrates into the supporting groove and is fixedly connected to the threaded shaft, and wherein a supporting plate is fixedly connected to the supporting block for height adjustment;

[0011] The clamping mechanism is arranged on the support plate, and the clamping mechanism includes a clamping plate 1 and a fixed block. The clamping plate 1 and the fixed block are both fixedly connected to the support plate. A threaded rod is threadedly connected to the fixed block, and a top block is rotatably connected to the threaded rod. The top block is fixedly connected to a clamping plate 2 for limiting and fixing the second pipe fitting.

[0012] Preferably, a spring is sleeved on the threaded rod, and the spring is fixedly connected between the top block and the fixed block.

[0013] Furthermore, a slide groove is provided on the support plate, a slider is slidably connected in the slide groove, and the slider is fixedly connected to the second clamping plate.

[0014] Furthermore, a plurality of telescopic rods are fixedly connected between the base and the support plate.

[0015] Furthermore, anti-slip pads are fixedly connected to the first clamping plate and the second clamping plate.

[0016] Based on the above solution, a baffle is arranged in the installation groove.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a clamping and fixing device for nuclear power welding, which has the following beneficial effects:

[0019] The clamping and fixing device for nuclear power welding can drive the second clamp plate to move by rotating the threaded rod, so that the first clamp plate and the second clamp plate can clamp and fix the second pipe fitting, thereby ensuring the stability of the second pipe fitting. The threaded shaft can be driven to rotate by a motor, so that the threaded shaft, threaded groove, support groove, etc. can cooperate to drive the support block, support plate, second pipe fitting, etc. to rise and fall, thereby improving the applicability of the overall device. The first pipe fitting and the second pipe fitting can be spot-welded, fixed, and welded by cooperating with the spot welding locking assembly leveler, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of a three-dimensional structure of a partial cross-section of the utility model;

[0022] Figure 3 For this utility model Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0023] Figure 4 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0024] In the figure: 1. spot welding locking assembly; 2. leveler; 3. first pipe fitting; 4. second pipe fitting; 5. base; 6. support groove; 7. support block; 8. threaded shaft; 9. motor; 10. support plate; 11. clamping plate one; 12. fixing block; 13. threaded rod; 14. top block; 15. clamping plate two; 16. spring; 17. slider; 18. telescopic rod; 19. anti-slip pad; 20. baffle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example

[0027] See also Figure 1-Figure 4 , a clamping and fixing device for nuclear power welding, comprising a spot welding locking assembly 1 and a leveler 2, and also comprising:

[0028] A first pipe fitting 3 and a second pipe fitting 4, and a spot welding locking assembly 1 is arranged between the first pipe fitting 3 and the second pipe fitting 4;

[0029] A base 5, on which the leveler 2 is mounted;

[0030] exist Figure 1 , Figure 2 and Figure 4 In the embodiment, the adjusting mechanism is arranged on the base 5, and the adjusting mechanism includes a mounting groove and a supporting groove 6. The mounting groove is arranged on the base 5, and the supporting groove 6 is fixedly connected to the base 5. A supporting block 7 is slidably connected in the supporting groove 6, and a threaded groove is arranged on the supporting block 7. A threaded shaft 8 is rotatably connected in the supporting groove 6, and the threaded shaft 8 is threadedly connected in the threaded groove. A motor 9 is installed in the mounting groove, and the output end of the motor 9 penetrates into the supporting groove 6 and is fixedly connected to the threaded shaft 8. A supporting plate 10 is fixedly connected to the supporting block 7. The motor 9, the threaded shaft 8, the supporting block 7, etc. are used for height adjustment, thereby improving the applicability.

[0031] exist Figure 1-Figure 3 In the figure, a clamping mechanism is arranged on a support plate 10, and the clamping mechanism includes a clamping plate 11 and a fixing block 12, both of which are fixedly connected to the support plate 10, a threaded rod 13 is threadedly connected to the fixing block 12, a top block 14 is rotatably connected to the threaded rod 13, a clamping plate 2 15 is fixedly connected to the top block 14, and is used to limit and fix the second pipe fitting 4, the clamping plate 11, the clamping plate 2 15, the threaded rod 13, etc. are used to clamp and limit the second pipe fitting 4, thereby ensuring the stability of the second pipe fitting 4.

[0032] exist Figure 1-Figure 3 In the figure, a spring 16 is sleeved on the threaded rod 13, and the spring 16 is fixedly connected between the top block 14 and the fixed block 12, and is used to make the second clamping plate 15 press against the second pipe 4, thereby preventing the threaded rod 13 from rotating without human power.

[0033] exist Figure 1-Figure 3 In the figure, a slide groove is provided on the support plate 10, a slider 17 is slidably connected in the slide groove, and the slider 17 is fixedly connected to the second clamping plate 15 to improve the stability of the second clamping plate 15.

[0034] exist Figure 1 and Figure 2 In the figure, a plurality of telescopic rods 18 are fixedly connected between the base 5 and the support plate 10 for telescoping, thereby ensuring the stability of the support plate 10.

[0035] exist Figure 1-Figure 3 In the embodiment, anti-skid pads 19 are fixedly connected to the first clamping plate 11 and the second clamping plate 15 to increase friction.

[0036] exist Figure 2 and Figure 4 In the installation groove, a baffle 20 is arranged in the installation groove to protect the motor 9.

[0037] It should be further explained that the motor 9 in this embodiment is a conventional device purchased on the market and known to those skilled in the art. The model can be selected or customized according to actual needs. In this patent, we only use it and do not improve its structure and function. For technicians in this field, its setting method, installation method and electrical connection method only need to be debugged according to the requirements of its instruction manual, and will not be described in detail here. The motor 9 is provided with a control switch matched with it. The installation position of the control switch is selected according to actual use requirements to facilitate the operator to operate and control.

[0038] In summary, the working principle and working process of the clamping and fixing device for nuclear power welding are as follows: when in use, first place the clamping and fixing device for nuclear power welding at the desired location, and connect the motor 9 to the forward and reverse circuit according to the corresponding instructions, then place the second pipe 4 on the support plate 10, rotate the threaded rod 13, and move the threaded rod 13 on the fixed block 12. The threaded rod 13 will drive the top block 14 and the second clamping plate 15 to move, so that the clamping plate 11 and the second clamping plate 15 can clamp and fix the second pipe 4, thereby ensuring the stability of the second pipe 4. Then, if the first pipe fitting 3 and the second pipe fitting 4 are at different heights, the motor 9 can be started, and the motor 9 will drive the threaded shaft 8 to rotate. Because the support groove 6 and the support block 7 slide up and down and the threaded shaft 8 is threadedly connected to the threaded groove, the rotation of the threaded shaft 8 will drive the support block 7 to rise and fall, and the support block 7 will drive the support plate 10, the second pipe fitting 4, etc. to rise, so as to drive the second pipe fitting 4 to be flush with the first pipe fitting 3. In this way, people can operate the spot welding locking assembly 1 and the leveler 2 to level, dock, spot weld and weld the first pipe fitting 3 and the second pipe fitting 4.

[0039] The spot welding locking assembly 1 and the leveler 2 involved in this scheme are authorized technologies disclosed in the utility model patent with Chinese patent publication (announcement) number CN212946320U. Their internal structure and working principle are well known to those skilled in the art and are not the innovation of this patent. The innovation focus of this patent lies in the limiting fixation and height adjustment of the second pipe fitting 4. Therefore, this patent will not elaborate on its internal structure and working principle.

[0040] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A clamping and fixing device for nuclear power welding, comprising a spot welding locking assembly (1) and a leveler (2), characterized in that: Also includes: A first pipe fitting (3) and a second pipe fitting (4), wherein the spot welding locking assembly (1) is arranged between the first pipe fitting (3) and the second pipe fitting (4); A base (5), the leveler (2) being mounted on the base (5); An adjustment mechanism, the adjustment mechanism is arranged on a base (5), the adjustment mechanism comprises a mounting groove and a support groove (6), the mounting groove is provided on the base (5), the support groove (6) is fixedly connected to the base (5), a support block (7) is slidably connected in the support groove (6), a threaded groove is provided on the support block (7), a threaded shaft (8) is rotatably connected in the support groove (6), the threaded shaft (8) is threadedly connected in the threaded groove, a motor (9) is installed in the mounting groove, an output end of the motor (9) penetrates into the support groove (6) and is fixedly connected to the threaded shaft (8), and a support plate (10) is fixedly connected to the support block (7); A clamping mechanism, the clamping mechanism is arranged on a support plate (10), the clamping mechanism comprises a clamping plate (11) and a fixing block (12), the clamping plate (11) and the fixing block (12) are both fixedly connected to the support plate (10), a threaded rod (13) is threadedly connected to the fixing block (12), a top block (14) is rotatably connected to the threaded rod (13), and the top block (14) is fixedly connected to a clamping plate (15).

2. The clamping and fixing device for nuclear power welding according to claim 1 is characterized in that: The threaded rod (13) is sleeved with a spring (16), and the spring (16) is fixedly connected between the top block (14) and the fixed block (12).

3. The clamping and fixing device for nuclear power welding according to claim 2 is characterized in that: The support plate (10) is provided with a slide groove, a slider (17) is slidably connected in the slide groove, and the slider (17) is fixedly connected to the second clamping plate (15).

4. The clamping and fixing device for nuclear power welding according to claim 3 is characterized in that: A plurality of telescopic rods (18) are fixedly connected between the base (5) and the support plate (10).

5. The clamping and fixing device for nuclear power welding according to claim 4 is characterized in that: Anti-slip pads (19) are fixedly connected to the first clamping plate (11) and the second clamping plate (15).

6. The clamping and fixing device for nuclear power welding according to claim 5 is characterized in that: A baffle (20) is arranged in the installation groove.

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