A kind of nuclear power plant welding workpiece fast assembly device

Abstract

The utility model discloses a kind of nuclear power plant welding workpiece quick group and device, including the adjusting assembly being respectively installed on two workpieces, and at least the connecting piece of two adjusting assemblies being installed together, adjusting assembly includes fixed sleeve pre-welded on workpiece, and adjusting piece detachably installed on fixed sleeve, adjusting piece and connecting piece mutually cooperate and adjust the misalignment gap between two workpieces, adjusting piece and connecting piece can be detached after completing welding between two workpieces, and fixed sleeve is cut off from workpiece. Further reduce the welding point of point fixed block, it is also convenient to clean weld after workpiece welding is completed, make appearance more regular and pass through nondestructive testing, improve the efficiency of on-site construction, reduce labor intensity. It is convenient to adjust in the process of workpiece group, can be suitable for more use environment, adjusting piece and connecting piece can also be reused, reduce material waste in construction process, save construction cost.

Description

Technical Field

[0001] This utility model relates to the field of workpiece assembly and welding technology, and in particular to a rapid assembly device for welding workpieces in nuclear power plants. Background Technology

[0002] The assembly process before welding workpieces in the nuclear reactor building of a nuclear power plant is an important factor affecting the welding quality. During the welding assembly process, temporary fixing measures are needed to control parameters such as weld gap and misalignment to ensure the welding quality of the weld.

[0003] Currently, when assembling and welding multiple workpieces together at nuclear power plant sites, temporary spot welding blocks are typically used and then removed after the overall assembly and welding are completed. The spot welding and removal of these temporary blocks, along with subsequent non-destructive testing, consumes considerable time, impacting on-site construction efficiency. Furthermore, if gaps or misalignments are encountered during workpiece assembly, other adjustments are necessary, which is time-consuming, labor-intensive, and results in material waste, increasing construction costs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a rapid assembly device for welding workpieces in nuclear power plants.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a rapid assembly device for welding workpieces in nuclear power plants is constructed, including adjustment components respectively installed on two workpieces, and a connector for installing at least two sets of the adjustment components together; the adjustment components include a fixing sleeve pre-welded on the workpiece, and an adjustment component detachably installed on the fixing sleeve, the adjustment component and the connector cooperate with each other to adjust the misalignment gap between the two workpieces; after the welding between the two workpieces is completed, the adjustment component and the connector can be detached, and the fixing sleeve can be cut off from the workpiece.

[0006] Furthermore, the fixing sleeve is provided with a cutting ring groove.

[0007] Furthermore, the adjusting component includes: a threaded post, a first adjusting nut, and a second adjusting nut. The threaded post is connected to the fixed sleeve via a threaded pair. The first adjusting nut and the second adjusting nut are both mounted on the threaded post via a threaded pair. The connecting component is clamped and fixed between the first adjusting nut and the second adjusting nut.

[0008] Furthermore, the threaded post is provided with a notch for locking the wrench.

[0009] Furthermore, the connector is a connecting plate, and the connecting plate is provided with an opening groove that allows the threaded post to pass through; the opening groove is U-shaped or polygonal.

[0010] Furthermore, the adjustment assembly also includes a protective sleeve fitted onto the fixed sleeve.

[0011] Furthermore, it also includes an adjustment assembly disposed between the connecting plate and the workpiece, the adjustment assembly including a tensioning block that tensions between the connecting plate and the workpiece.

[0012] Furthermore, the tensioning block is provided with an inclined surface and a flat surface, the flat surface being in contact with the workpiece and the inclined surface being in contact with the connecting plate.

[0013] Furthermore, the debugging assembly also includes: a pad and a first adjusting bolt. The pad is slidably connected to the connecting plate, and the first adjusting bolt is installed on the connecting plate via a threaded pair. The end of the first adjusting bolt is rotatably connected to the pad, and rotating the first adjusting bolt controls the pad to move closer to or away from the connecting plate.

[0014] Furthermore, the side of the pad closest to the workpiece is configured as an insertion ramp that slopes towards the center on both sides.

[0015] The following are the beneficial effects of implementing this utility model: This application utilizes pre-welded fixing sleeves on two workpieces and detachable adjusting components mounted on the fixing sleeves. The adjusting components and connecting components work together to adjust the misalignment gap between the two workpieces. This reduces the number of welding points on the fixed blocks, facilitates cleaning of weld points after welding, results in a neater appearance, and improves the efficiency of on-site construction while reducing labor intensity. The components are easy to adjust during workpiece assembly, making them suitable for a wider range of applications. Furthermore, the connecting and adjusting components can be reused, reducing material waste and saving construction costs. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] In the attached image: Figure 1 This is a schematic diagram of the installation position of the rapid assembly device for welding workpieces in nuclear power plants in some embodiments of this utility model; Figure 2 This is a three-dimensional structural schematic diagram of a rapid assembly device for welding workpieces in nuclear power plants according to some embodiments of this utility model; Figure 3This is a three-dimensional structural diagram of the fixing sleeve and threaded column in some embodiments of this utility model; Figure 4 This is an exploded three-dimensional structural diagram of the adjusting component in some embodiments of this utility model.

[0018] Explanation of markings in the diagram Workpiece 1, Adjustment component 2, Fixing sleeve 21, Adjustment component 22, Threaded column 221, First adjusting nut 222, Second adjusting nut 223, Notch 224, Cut-off ring groove 23, Protective sleeve 24, Connector 3, Connecting plate 31, Opening groove 32, Adjustment component 4, Tensioning block 41, Pad 42, Insertion inclined surface 421, First adjusting bolt 43. Detailed Implementation

[0019] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0020] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0022] Please see Figures 1 to 4 The rapid assembly device for welding workpieces in a nuclear power plant according to the first embodiment of this utility model includes adjusting components 2 respectively installed on two workpieces 1, and connecting members 3 that connect at least two sets of adjusting components 2 together. Each adjusting component 2 includes a fixing sleeve 21 pre-welded to the workpiece 1, and an adjusting member 22 detachably installed on the fixing sleeve 21. The adjusting member 22 and the connecting member 3 cooperate to adjust the misalignment gap between the two workpieces 1. After welding is completed between the two workpieces 1, the adjusting member 22 and the connecting member 3 can be removed, and the fixing sleeve 21 can be cut off from the workpiece 1.

[0023] This application utilizes fixed sleeves 21 pre-welded to two workpieces 1, and adjusting members 22 detachably mounted on the fixed sleeves 21. The adjusting members 22 and the connecting members 3 cooperate to adjust the misalignment gap between the two workpieces 1. Before assembling the two workpieces 1, the operator first welds the fixed sleeves 21 to the workpieces 1, then installs the adjusting members 22 on the fixed sleeves 21, and then installs the connecting members 3 on the adjusting members 22. The connecting members 3 are used to connect multiple adjusting members 22 together. By adjusting the clamping force of each adjusting member 22 on the connecting members 3, and by changing the different tensions of the adjusting members 22 on their respective fixed sleeves 21, the size of the misalignment gap between the two workpieces 1 is changed. After adjusting to a suitable misalignment gap, the two workpieces 1 are welded. After welding is completed, the operator removes the adjusting members 22 and the connecting members 3 from the two workpieces 1, and then cuts the fixed sleeves 21 off their respective workpieces 1. This reduces the number of welding points on the spot-fixing blocks, and facilitates cleaning of the weld points after welding workpiece 1, resulting in a neater appearance that is easier to pass non-destructive testing, thus improving on-site construction efficiency and reducing labor intensity. Adjustments are easier to make during the assembly of workpiece 1, making it suitable for more usage environments. Connector 3 and adjuster 22 can also be reused, reducing material waste and saving construction costs. Compared to manual spot welding, this method is more efficient, less difficult, and easier to control in terms of quality. It eliminates the need for welding filler material, allows for rapid disassembly, and reduces the risk of damage to workpiece 1 during grinding, contributing to improved efficiency and welding quality in the assembly of workpiece 1.

[0024] Please see Figures 1 to 4 In some embodiments, the fixing sleeve 21 is provided with a cutting ring groove 23.

[0025] This application incorporates a cutting groove 23 on the fixed sleeve 21. This groove facilitates the operator's cutting of the fixed sleeve 21, prevents misalignment of the cutting machine during the cutting process, and facilitates subsequent grinding. This ensures that the remaining length of the fixed sleeve 21 on each workpiece 1 better meets the standard, facilitating subsequent non-destructive testing. Furthermore, the cutting groove 23 reduces the wall thickness at the cutting location of the fixed sleeve 21, reducing the operator's workload and improving cutting efficiency, thereby increasing on-site construction efficiency.

[0026] Please see Figures 1 to 4 In some embodiments, the adjusting member 22 includes: a threaded post 221, a first adjusting nut 222 and a second adjusting nut 223. The threaded post 221 is connected to the fixed sleeve 21 by a threaded pair. The first adjusting nut 222 and the second adjusting nut 223 are both installed on the threaded post 221 by a threaded pair. The connecting member 3 is clamped and fixed between the first adjusting nut 222 and the second adjusting nut 223.

[0027] In this application, the threaded post 221 is connected to the fixed sleeve 21 via a threaded pair. The first adjusting nut 222 and the second adjusting nut 223 are both installed on the threaded post 221 via the threaded pair. The connecting piece 3 is clamped and fixed between the first adjusting nut 222 and the second adjusting nut 223. After welding the fixed sleeve 21 to the workpiece 1, the operator first tightens the threaded post 221 into the fixed sleeve 21 via the threaded pair, then screws the second adjusting nut 223 onto the threaded post 221, then sleeves and installs the connecting piece 3 onto the threaded post 221, and finally screws the first adjusting nut 222 onto the threaded post 221, so that the first adjusting nut 222 and the second adjusting nut 223 cooperate to clamp and fix the connecting piece 3 in the middle. When adjusting the misalignment gap between two workpieces 1, the first adjusting nut 222 and the second adjusting nut 223 at the top, or the first adjusting nut 222 and the second adjusting nut 223 at the bottom, can be rotated. By using the tension between the first adjusting nut 222 and the second adjusting nut 223 and the connecting piece 3, the two workpieces 1 can be pulled or pushed, thereby changing the misalignment gap between the two workpieces 1. After adjusting to a suitable misalignment gap, the operator welds the two workpieces 1 together to fix them together. After welding, the adjusting piece 22 and the connecting piece 3 are removed. Then, the fixing sleeve 21 is cut and ground according to the cut-out ring groove 23. The entire adjustment process is simple and convenient to operate, applicable to more usage environments, expands the scope of application, facilitates subsequent non-destructive testing, and improves construction efficiency.

[0028] Please see Figures 1 to 4 In some embodiments, the threaded post 221 is provided with a notch 224 for locking the wrench.

[0029] This application provides a notch 224 on the threaded post 221 to hold the wrench. Through the notch 224, the operator can use the wrench to rotate the threaded post 221, so that the threaded post 221 can be more firmly connected with the fixed sleeve 21, the first adjusting nut 222 and the second adjusting nut 223. This allows the misalignment gap between the two workpieces 1 to be adjusted to a suitable position more quickly and conveniently, making the operation more time-saving and labor-saving.

[0030] Please see Figures 1 to 4 In some embodiments, the connector 3 is a connecting plate 31, and the connecting plate 31 is provided with an opening groove 32 that allows the threaded post 221 to pass through. The opening groove 32 is U-shaped or polygonal.

[0031] This application uses a connector 3 as a connecting plate 31, and the connecting plate 31 is provided with an opening slot 32 that allows the threaded post 221 to pass through. Using the connector 3 as the connecting plate 31 allows the connecting plate 31 to fit more tightly with the first adjusting nut 222 and the second adjusting nut 223, which facilitates the adjustment of the misalignment gap between the two workpieces 1 and makes the operation more time-saving and labor-saving. The opening slot 32 on the connecting plate 31 makes it easy for the connecting plate 31 to be clamped between the upper and lower sets of the first adjusting nuts 222 and the second adjusting nuts 223. When the two fixing sleeves 21 are welded to the two workpieces 1 respectively, the operation difficulty can be reduced. The connecting plate 31 can be clamped between the two sets of threaded posts 221 whether the distance between the two fixing sleeves 21 is close or far, making the operation simpler and more convenient. The connecting plate 31 can also be installed at an angle between the two sets of threaded posts 221, thus making it suitable for more usage environments.

[0032] This application uses a U-shaped or polygonal opening groove 32, which facilitates the installation of the connecting plate 31 onto the threaded post 221, thereby saving time and effort and improving construction efficiency.

[0033] Please see Figures 1 to 4 In some embodiments, the adjustment component 2 further includes a protective sleeve 24 fitted onto the fixed sleeve 21.

[0034] This application utilizes a protective sleeve 24 fitted onto a fixed sleeve 21. When welding two workpieces 1, the protective sleeve 24 acts as an isolation layer, reducing the adhesion of welding slag to the fixed sleeve 21. This allows operators to cut the fixed sleeve 21 more easily later, improving construction efficiency and resulting in a cleaner appearance, facilitating subsequent inspection.

[0035] The protective sleeve 24 can also be fitted onto the threaded post 221, the first adjusting nut 222, and the second adjusting nut 223. This prevents welding slag from contacting the threaded post 221, the first adjusting nut 222, or the second adjusting nut 223 when welding the two workpieces 1. This allows the operator to remove the adjusting component 22 from the fixed sleeve 21 more easily after welding, reducing damage to the fixed sleeve 21 and the adjusting component 22, extending their service life, and reducing construction costs.

[0036] Please see Figures 1 to 4 In some embodiments, an adjustment component 4 is also included, which is disposed between the connecting plate 31 and the workpiece 1. The adjustment component 4 includes a tensioning block 41 that is tensioned between the connecting plate 31 and the workpiece 1.

[0037] This application utilizes an adjustment assembly 4 disposed between the connecting plate 31 and the workpiece 1. The adjustment assembly 4 includes a tensioning block 41 that is tensioned between the connecting plate 31 and the workpiece 1. After the first adjusting nut 222 and the second adjusting nut 223 are tightened, the operator can insert the tensioning block 41 between the connecting plate 31 and the workpiece 1. Then, by tapping the tensioning block 41, the tensioning block 41 can fill the gap between the connecting plate 31 and the workpiece 1, improving the stability between the two workpieces 1, thereby reducing misalignment and welding deformation between the two workpieces 1 during welding, and improving the yield of the welded product.

[0038] The tensioning block 41 can squeeze the connecting plate 31 and the workpiece 1 to finely adjust the misalignment gap between the two workpieces 1, making the welding between the two workpieces 1 more regular, and further improving the yield and efficiency of on-site construction.

[0039] Please see Figures 1 to 4 In some embodiments, the tensioning block 41 is provided with an inclined surface and a flat surface, the flat surface being in contact with the workpiece 1 and the inclined surface being in contact with the connecting plate 31.

[0040] This application utilizes a tension block 41 with an inclined surface and a flat surface. The flat surface is in contact with the workpiece 1, and the inclined surface is in contact with the connecting plate 31. The contact between the flat surface and the workpiece 1 increases the contact area between the tension block 41 and the workpiece 1, preventing damage to the workpiece 1 during the compression process and thus improving the yield rate of the welded workpiece 1, facilitating non-destructive testing. The contact between the inclined surface and the connecting plate 31 allows for adjustment of the distance between the connecting plate 31 and the workpiece 1 by tapping the tension block 41, enabling fine-tuning of the misalignment gap between the two workpieces 1. This design is suitable for a wider range of applications, is simple and convenient to manufacture, and saves on production costs.

[0041] Please see Figures 1 to 4In some embodiments, the debugging component 4 further includes a pad 42 and a first adjusting bolt 43. The pad 42 is slidably connected to the connecting plate 31, and the first adjusting bolt 43 is installed on the connecting plate 31 through a threaded pair. The end of the first adjusting bolt 43 is rotatably connected to the pad 42. Rotating the first adjusting bolt 43 controls the pad 42 to move closer to or away from the connecting plate 31.

[0042] This application uses a pad 42 slidably connected to a connecting plate 31. A first adjusting bolt 43 is installed on the connecting plate 31 via a threaded joint. The end of the first adjusting bolt 43 is rotatably connected to the pad 42. Rotating the first adjusting bolt 43 controls the pad 42 to move closer to or away from the connecting plate 31. By rotating the first adjusting bolt 43, the pad 42 is driven closer to or away from the connecting plate 31. When the pad 42 moves away from the connecting plate 31 and extends between the two workpieces 1, the height between the two workpieces 1 is adjusted, thereby adjusting the weld size between the two workpieces 1. This makes it suitable for more usage environments, provides more diverse adjustment options, expands the scope of application, reduces the labor intensity of operators during welding, and improves the efficiency of on-site construction.

[0043] Please see Figures 1 to 4 In some embodiments, the side of the pad 42 closest to the workpiece 1 is configured as an insertion ramp 421 that slopes towards the center on both sides.

[0044] This application uses a shim plate 42 with an insertion ramp 421 inclined towards the center on both sides near the workpiece 1. Rotating the first adjusting bolt 43 brings the two workpieces 1 into contact with the insertion ramp 421. Rotating the first adjusting bolt 43 forward brings the shim plate 42 closer to the workpiece 1, increasing the distance the two workpieces 1 move on the insertion ramp 421 and thus the height gap between them. Similarly, rotating the first adjusting bolt 43 in the opposite direction moves the shim plate 42 further away from the workpiece 1, decreasing the distance the two workpieces 1 move on the insertion ramp 421 and thus the height gap between them. This expands the application range and makes it suitable for more environments. The insertion ramp 421 allows for easier placement of the shim plate 42 between the two workpieces 1, saving time and effort and improving on-site construction efficiency.

[0045] When assembling two workpieces 1, the operator first welds two fixing sleeves 21 to the two workpieces 1 respectively. Then, the threaded post 221 is installed into the fixing sleeve 21 through the threaded pair. Next, the second adjusting nut 223 is screwed onto the threaded post 221. Then, the connecting plate 31 is installed onto the threaded post 221, and the first adjusting nut 222 is screwed onto the threaded post 221, so that the first adjusting nut 222 and the second adjusting nut 223 pre-clamp the connecting plate 31. Then, the operator can adjust the height gap between the two workpieces 1 by rotating the first adjusting bolt 43, so that the shim 42 extends between the two workpieces 1. After adjusting to a suitable misalignment gap, the first adjusting nut 222 and the second adjusting nut 223 are tightened to clamp the connecting plate 31. Then, the tensioning block 41 is tightened between the workpiece 1 and the connecting plate 31 to fine-tune the misalignment gap between the two workpieces 1, thereby improving the firmness between the two workpieces 1. This improves the efficiency of on-site construction and reduces labor intensity. The assembly process of workpiece 1 is easy to adjust, making it suitable for a wider range of applications. Furthermore, the connector 3 and the adjusting component 22 can be reused, reducing material waste during construction and saving on construction costs.

[0046] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A rapid assembly device for welding workpieces in nuclear power plants, characterized in that, It includes adjustment components (2) respectively installed on two workpieces (1), and connectors (3) that install at least two sets of adjustment components (2) together; The adjustment assembly (2) includes a fixed sleeve (21) pre-welded to the workpiece (1) and an adjustment member (22) detachably mounted on the fixed sleeve (21). The adjustment member (22) and the connector (3) cooperate to adjust the misalignment gap between the two workpieces (1). After the welding between the two workpieces (1) is completed, the adjustment member (22) and the connector (3) can be detached, and the fixed sleeve (21) can be cut off from the workpiece (1).

2. The rapid assembly device for welding workpieces in nuclear power plants according to claim 1, characterized in that, The fixing sleeve (21) is provided with a cutting ring groove (23).

3. The rapid assembly device for welding workpieces in nuclear power plants according to claim 1, characterized in that, The adjusting component (22) includes: a threaded post (221), a first adjusting nut (222), and a second adjusting nut (223). The threaded post (221) is connected to the fixed sleeve (21) through a threaded pair. The first adjusting nut (222) and the second adjusting nut (223) are both installed on the threaded post (221) through a threaded pair. The connecting component (3) is clamped and fixed between the first adjusting nut (222) and the second adjusting nut (223).

4. The rapid assembly device for welding workpieces in nuclear power plants according to claim 3, characterized in that, The threaded post (221) is provided with a notch (224) for locking the wrench.

5. The rapid assembly device for welding workpieces in nuclear power plants according to claim 3, characterized in that, The connector (3) is a connecting plate (31), and the connecting plate (31) is provided with an opening groove (32) that allows the threaded post (221) to pass through; the opening groove (32) is U-shaped or polygonal.

6. The rapid assembly device for welding workpieces in nuclear power plants according to claim 1, characterized in that, The adjustment assembly (2) also includes a protective sleeve (24) fitted onto the fixed sleeve (21).

7. The rapid assembly device for welding workpieces in nuclear power plants according to claim 5, characterized in that, It also includes an adjustment assembly (4) disposed between the connecting plate (31) and the workpiece (1), the adjustment assembly (4) including a tensioning block (41) tensioning between the connecting plate (31) and the workpiece (1).

8. The rapid assembly device for welding workpieces in nuclear power plants according to claim 7, characterized in that, The tensioning block (41) is provided with an inclined surface and a flat surface. The flat surface is in contact with the workpiece (1), and the inclined surface is in contact with the connecting plate (31).

9. The rapid assembly device for welding workpieces in nuclear power plants according to claim 7, characterized in that, The debugging assembly (4) further includes: a pad (42) and a first adjusting bolt (43). The pad (42) is slidably connected to the connecting plate (31). The first adjusting bolt (43) is installed on the connecting plate (31) by a threaded pair. The end of the first adjusting bolt (43) is rotatably connected to the pad (42). Rotating the first adjusting bolt (43) controls the pad (42) to move closer to or further away from the connecting plate (31).

10. The rapid assembly device for welding workpieces in a nuclear power plant according to claim 9, characterized in that, The pad (42) is configured with an insertion ramp (421) that is inclined towards the center on both sides on the side near the workpiece (1).

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