Welding tool applied to CRDM filtering assembly

Abstract

The welding tool applied to the CRDM filtering assembly comprises a clamping assembly and a pressing assembly, the pressing assembly comprises a pressing disc, a supporting piece and a driving piece, on the basis, in the using process, the CRDM filtering assembly which is not welded can be arranged on the clamping assembly, and therefore the CRDM filtering assembly can be clamped on the clamping assembly; the base of the CRDM filter assembly is clamped through the clamping assembly, then the pressing disc is driven by the driving piece to move, the pressing disc is arranged on the pressing ring of the CRDM filter assembly in a pressing mode, fixing of the pressing ring is completed, under the condition, the pressing ring and the base can be welded, and preparation of the CRDM filter assembly is completed. According to the welding tool applied to the CRDM filtering assembly, the pressing ring is pressed and fixed through the pressing disc, an operation space is reserved for welding, meanwhile, the pressing disc is used in cooperation with the clamping assembly, the probability that the base and the pressing ring deform can be reduced, and the welding quality is guaranteed.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of nuclear power technology, and in particular to a welding tool for a CRDM filter assembly. Background Art

[0002] The CRDM filter assembly of a pressurized water reactor nuclear power plant is a filtering tool installed in the control rod drive mechanism and pipelines, mainly used to filter impurities in the pipelines to ensure the safety of the CRDM. The CRDM filter assembly consists of a base, a pressing ring, and multiple layers of filter meshes. The schematic diagram is as Figure 1 shown. To ensure the accuracy of the positioning ring of the filter assembly and the pressing degree after welding with the base, it is particularly important to control the deformation during the welding of the pressing ring and the base. In traditional technologies, most rely on manual experience for welding, and the welding quality cannot be guaranteed. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] In view of this, the embodiments of the present application propose a welding tool for a CRDM filter assembly, including:

[0005] A clamping assembly, on which the CRDM filter assembly is arranged, and the clamping assembly is used to clamp the CRDM filter assembly;

[0006] A pressing assembly, the pressing assembly includes a pressing disc, a support member, and a driving member. The support member is connected to the clamping assembly, the driving member is arranged on the support member, and the output end of the driving member is connected to the pressing disc, and is used to drive the pressing disc to press on the pressing ring of the CRDM filter assembly.

[0007] In a feasible implementation manner, the clamping assembly includes:

[0008] A clamping chassis, on which a sliding groove is formed;

[0009] A clamping part, which is slidably connected to the clamping chassis through the sliding groove, and the clamping part is used to abut against the base of the CRDM filter assembly.

[0010] In a feasible implementation manner, there are multiple groups of the clamping assemblies, and the sizes of the clamping chassis and the clamping parts between multiple groups of the clamping assemblies are different.

[0011] In a feasible implementation manner, each clamping assembly includes multiple clamping parts, and the sizes of multiple clamping parts in each clamping assembly are the same.

[0012] In a feasible implementation manner, the clamping assembly further includes:

[0013] A support and positioning base, which is arranged on the clamping chassis;

[0014] Wherein, the CRDM filter component is used to be arranged on the support and positioning base, and the support is connected to the support and positioning base.

[0015] In a feasible implementation manner, the support is in a gate shape, and the support is connected to the support and positioning base by bolts.

[0016] In a feasible implementation manner, positioning protrusions are formed on the support and positioning base, and the base of the CRDM filter component is positioned and arranged on the support and positioning base through the positioning protrusions.

[0017] In a feasible implementation manner, the driving member includes:

[0018] A guiding threaded sleeve, which is connected to the support;

[0019] A screw rod, which passes through the guiding threaded sleeve and the pressing disc;

[0020] A torque wrench, which is used to be connected to the screw rod.

[0021] In a feasible implementation manner, assembly holes are formed at the end of the pressing disc, and the driving member is connected to the assembly holes.

[0022] In a feasible implementation manner, an avoidance portion is formed on the pressing disc to avoid the handle of the CRDM filter component.

[0023] Compared with the prior art, the present utility model at least includes the following beneficial effects:

[0024] The welding tooling for the CRDM filter component provided by the embodiment of the present application includes a clamping component and a pressing component. The pressing component includes a pressing disc, a support and a driving member. Based on this, in the using process, the uncompleted welded CRDM filter component can be arranged on the clamping component, the base of the CRDM filter component is clamped by the clamping component, and then the driving member drives the pressing disc to move, so that the pressing disc presses on the pressing ring of the CRDM filter component to complete the fixation of the pressing ring. In this case, the pressing ring and the base can be welded to complete the preparation of the CRDM filter component. Through the welding tooling for the CRDM filter component provided by the embodiment of the present application, the pressing disc presses and fixes the pressing ring, leaving an operating space for welding. At the same time, when combined with the clamping component, the probability of deformation of the base and the pressing ring can be reduced, ensuring the welding quality. Description of the Drawings

[0025] Upon reading the following detailed description of the preferred embodiments, various other advantages and benefits will become apparent to those of ordinary skill in the art. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0026] Figure 1 is a schematic structural diagram of a CRDM filter component;

[0027] Figure 2 is a schematic structural diagram of a welding tooling applied to a CRDM filter component according to an embodiment provided by the present application;

[0028] Figure 3 is a schematic structural diagram of a pressing plate of a welding tooling applied to a CRDM filter component according to an embodiment provided by the present application.

[0029] Among them, Figures 2 to 3 the corresponding relationship between the reference numerals in the drawings and the component names is:

[0030] 110 clamping assembly, 120 pressing assembly;

[0031] 111 clamping chassis, 112 clamping part, 113 support positioning base;

[0032] 121 pressing plate, 122 support member, 123 driving member;

[0033] 1211 avoidance part, 1231 guiding threaded sleeve, 1232 screw rod, 1233 torque wrench. Detailed Embodiments

[0034] In order to better understand the above technical solutions, the technical solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific features in the embodiments of the present application and the embodiments are detailed descriptions of the technical solutions of the embodiments of the present application, rather than limitations on the technical solutions of the present application. Without conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0035] As Figure 2 and Figure 3As shown in the figure, an embodiment of the present application provides a welding tool for a CRDM filter component, including: a clamping component 110, the CRDM filter component is configured to be disposed on the clamping component 110, and the clamping component 110 is used to clamp the CRDM filter component; a pressing component 120, the pressing component 120 includes a pressing plate 121, a support member 122, and a driving member 123. The support member 122 is connected to the clamping component 110, the driving member 123 is disposed on the support member 122, and the output end of the driving member 123 is connected to the pressing plate 121 for driving the pressing plate 121 to press on the pressing ring of the CRDM filter component.

[0036] The welding tool for the CRDM filter component provided by the embodiment of the present application includes a clamping component 110 and a pressing component 120. The pressing component 120 includes a pressing plate 121, a support member 122, and a driving member 123. Based on this, during use, the uncompleted welded CRDM filter component can be disposed on the clamping component 110, the base of the CRDM filter component is clamped by the clamping component 110, and then the driving member drives the pressing plate 121 to move, so that the pressing plate 121 presses on the pressing ring of the CRDM filter component, completing the fixation of the pressing ring. In this case, the pressing ring and the base can be welded to complete the preparation of the CRDM filter component. Through the welding tool for the CRDM filter component provided by the embodiment of the present application, the pressing plate 121 presses and fixes the pressing ring, leaving an operating space for welding. At the same time, when used in combination with the clamping component 110, it can reduce the probability of deformation of the base and the pressing ring, ensuring the welding quality.

[0037] As Figure 2 and Figure 3 As shown in the figure, in a feasible embodiment, the clamping component 110 includes: a clamping chassis 111, on which a chute is formed; a clamping part 112, the clamping part 112 is slidably connected to the clamping chassis 111 through the chute, and the clamping part 112 is used to abut against the base of the CRDM filter component.

[0038] In this technical solution, the structural composition of the clamping component 110 is further provided. The clamping component 110 may include a clamping chassis 111 and a clamping part 112. By driving the clamping part 112 to move in the chute, the clamping part 112 can abut against the base of the CRDM filter component. Based on this, the CRDM filter component can be fixed, preventing the CRDM filter component from shifting or rotating when the pressing plate 121 fixes the pressing ring, ensuring the welding quality.

[0039] As Figure 2 and Figure 3As shown, in a feasible implementation, there are multiple sets of clamping assemblies 110, and the sizes of the clamping chassis 111 and the clamping parts 112 between the multiple sets of clamping assemblies 110 are different.

[0040] In this technical solution, there can be multiple sets of clamping assemblies 110. By having different sizes of the clamping chassis 111 and the clamping parts 112 between the multiple sets of clamping assemblies 110, the welding tooling can be made applicable to CRDM filter components of different specifications, and the applicable range can be improved.

[0041] As Figure 2 and Figure 3 shown, in a feasible implementation, each clamping assembly 110 includes multiple clamping parts 112, and the sizes of the multiple clamping parts 112 in each clamping assembly 110 are the same.

[0042] In this technical solution, each clamping assembly 110 includes multiple clamping parts 112. By fixing the base of the CRDM filter component with the multiple clamping parts 112, the clamping effect of the CRDM filter component can be better, and the probability of deformation can be further reduced.

[0043] As Figure 2 and Figure 3 shown, in a feasible implementation, the clamping assembly 110 further includes: a support and positioning base 113, and the support and positioning base 113 is arranged on the clamping chassis 111; wherein, the CRDM filter component is used to be arranged on the support and positioning base 113, and the support member 122 is connected to the support and positioning base 113.

[0044] In this technical solution, the structural composition of the clamping assembly 110 is further provided. The clamping assembly 110 can further include a support and positioning base 113. By arranging the support and positioning base 113, the CRDM filter component can be better supported, the shape of the CRDM filter component can be better adapted, and the fixation of the CRDM filter component can be made more stable.

[0045] As Figure 2 and Figure 3 shown, in a feasible implementation, the support member 122 is in a door shape, and the support member 122 is connected to the support and positioning base 113 by bolts.

[0046] In this technical solution, the style of the support member 122 is further provided. The support member 122 is in a door shape, and the support member 122 is connected to the support and positioning base 113 by bolts. The support member 122 can provide an installation position for the driving member 123 and a force application point for the driving member 123, facilitating the application of force to the pressing disc 121 by the driving member 123.

[0047] As Figure 2 and Figure 3As shown, in a feasible implementation, a positioning protrusion is formed on the support positioning base 113, and the base of the CRDM filter assembly is positioned on the support positioning base 113 through the positioning protrusion.

[0048] In this technical solution, a positioning protrusion is formed on the support positioning base 113. Such a setting can make the support positioning base 113 more adaptable to the shape of the base, can use the structure of the base to position the base, and can make the clamping of the CRDM filter assembly more reliable.

[0049] As Figure 2 and Figure 3 As shown, in a feasible implementation, the driving member 123 includes: a guiding threaded sleeve 1231, the guiding threaded sleeve 1231 is connected to the support member 122; a screw 1232, the screw 1232 passes through the guiding threaded sleeve 1231 to press the pressing plate 121; a torque wrench 1233, the torque wrench 1233 is used to connect to the screw 1232.

[0050] In this technical solution, the structural composition of the driving member 123 is further provided. The driving member 123 may include a guiding threaded sleeve 1231, a torque wrench 1233, and a screw 1232. By driving the screw 1232 to rotate through the torque wrench 1233, and then connecting the screw 1232 to the pressing plate 121, the pressing plate 121 can be driven to lift and lower. By approaching the CRDM filter assembly with the pressing plate 121, the pressing ring can be pressed by the pressing plate 121.

[0051] It can be understood that by setting the torque wrench 1233, a fixed value of torque can be output, which can further reduce the probability of deformation during the welding process of the CRDM filter assembly.

[0052] As Figure 2 and Figure 3 As shown, in a feasible implementation, an assembly hole is formed at the end of the pressing plate 121, and the driving member 123 is connected to the assembly hole. Such a setting facilitates the connection between the driving member 123 and the pressing plate 121, and also facilitates the connection between the screw 1232 and the assembly hole.

[0053] In a feasible implementation, an avoidance portion 1211 is formed on the pressing plate 121 to avoid the handle of the CRDM filter assembly. Such a setting. On the one hand, it can increase the pressing effect of the pressing plate 121; on the other hand, it can make the pressing plate 121 fit more closely with the pressing ring, reducing the probability of deformation of the CRDM filter assembly.

[0054] Embodiment

[0055] As Figure 2 and Figure 3As shown in the figure, the welding tooling applied to the CRDM filter component includes: a clamping chassis 111, a clamping part 112, a support positioning base 113, bolts, a portal-shaped support beam, a pressing disk 121, a guiding threaded sleeve 1231, a connecting screw rod 1232, and a torque wrench 1233.

[0056] Among them, the clamping part 112 is connected to the clamping chassis 111 through a chute. The support positioning base 113 is clamped by the clamping part 112 under the electric driving force. The support positioning base 113 is connected to the support member 122 through two bolts. The pressing disk 121 is connected in cooperation with the screw rod 1232. The guiding threaded sleeve 1231 is welded to the support member 122. The connecting screw rod 1232 is threadedly connected to the guiding threaded sleeve 1231.

[0057] Among them, the clamping chassis 111 and the clamping part 112 are standard products, which can clamp circular block bases with different diameters.

[0058] Among them, the upper surface of the support positioning base 113 is provided with three circumferentially uniformly distributed positioning posts for positioning the workpiece base.

[0059] Among them, the support member 122 provides positioning support for the guiding threaded sleeve 1231.

[0060] Among them, the pressing disk 121 has a special-shaped structure, which can avoid the handle position of the pressing ring and realize the pressing of the pressing ring.

[0061] Among them, the guiding threaded sleeve 1231 provides guidance for the connecting screw rod 1232, and the force received by the pressing disk 121 is in a stable vertically downward direction.

[0062] Among them, the torque wrench 1233 acts on the connecting screw rod 1232 through the guiding threaded sleeve 1231 to realize precise control of the torque.

[0063] The following describes the implementation process of a welding tooling applied to the CRDM filter component.

[0064] 1) Before use, first check whether each mechanism is firmly connected.

[0065] 2) Place the clamping chassis 111 on a workbench at an appropriate height to make the clamping chassis 111 in a stable state.

[0066] 3) Place the support positioning base 113 in the middle of the clamping chassis 111, adjust the circumferential position, avoid the threaded holes from the clamping part 112, and clamp it through the clamping part 112.

[0067] 4) Install the support member 122 on the support positioning base 113 and fasten it with bolts.

[0068] 5) At this time, the pressing disc 121 has been installed on the connecting screw 1232 and fixed by the guiding threaded sleeve 1231.

[0069] 6) Install the base with a filter screen on the support positioning base 113. When installing, the three through holes of the base cooperate with the three cylindrical protrusions on the support base 3.

[0070] 7) Install a pressing ring on the filter screen and make the pressing ring in the centered position.

[0071] 8) Use an electric tightening tool to drive the connecting screw 1232 to drive the pressing disc 121 to quickly descend to near the pressing ring.

[0072] 9) Fit the notch on the pressing disc 121 with the handle of the pressing ring, set the torque of the torque wrench 1233, and continue to rotate the connecting screw 1232 through the sleeve to drive the pressing ring to rotate circumferentially. After the pressing disc 121 completely fixes the pressing ring, continue to tighten until the set torque value is reached.

[0073] 10) In this state, the welding of the pressing ring and the base can be achieved by a manual welding torch.

[0074] 11) After welding is completed, loosen the connecting screw 1232, drive the pressing disc 121 to move upward, and take out the CRDM filter assembly.

[0075] Compared with the prior art, this tooling is used to solve the problems of welding positioning and deformation control of the pressing ring and the base of the filter assembly. This embodiment has the following advantages:

[0076] The welding tooling for the CRDM filter assembly provided in this embodiment can realize the quick clamping and positioning of the tooling base; through structural design, the interference between the welding torch and the pressing tooling during the welding of the pressing ring and the base is avoided; through calculation, the control of the pressing force can be realized by controlling the pressing torque, avoiding the potential safety hazards and the large floor space occupation that may be caused by the hydraulic pressing tooling.

[0077] The welding tooling for the CRDM filter assembly provided in this embodiment has a simple structure, a compact overall structure, stable operation, and can provide sufficient pressing force to restrain welding deformation.

[0078] In the welding process of the welding tooling for the CRDM filter assembly provided in this embodiment, there is interference between the welding torch and the pressing tooling, as well as the need for safe and quick pressing. This tooling has the functions of quick clamping, providing accurate pressing force, restraining welding deformation, and avoiding interference with the welding torch. This tooling has a simple and lightweight structure, simple operation without interference, and can meet the requirements for controlling the welding deformation of the CRDM filter assembly.

[0079] The purpose of this embodiment is to design a welding tool for assembling a filter component of a CRDM that is pressed by a torque wrench 1233 to address the problems that are likely to occur during the assembly and welding process of the CRDM filter component, such as interference between manual welding operations and tooling, and the inability to precisely control the pressing force. This tool has functions such as accurately positioning the pressing ring, providing an accurate pressing force to restrain welding deformation, and providing a necessary space for manual welding operations, ensuring that the first-time welding forming of the CRDM filter component meets the requirements. The precise control of the pressing force can be achieved through the torque wrench 1233, and the operation space is left for manual welding by disk pressing, thereby controlling the welding deformation of the filter component.

[0080] In summary, the welding tool provided in the present utility model for the CRDM filter component is a special tool for controlling the welding deformation between the filter component base and the pressing ring. This tool is used to solve the interference between the welding torch and the pressing tooling during the assembly and welding process of the CRDM filter component, as well as the need for safe and rapid pressing. This tool uses a pressing disk 121 to press the pressing ring, leaving sufficient welding space for the manual welding torch. Through the torque wrench 1233 and the guiding threaded sleeve 1231, a determined torque value is converted into a determined pressure value to press the filter net. The clamping chassis 111 and the clamping part 112 can achieve the rapid clamping of circular support positioning bases 113 of different sizes and can also be used for clamping filter components of other sizes. Through practical applications, the results prove that this tool has a simple and lightweight structure, simple operation without interference, and can meet the requirements for controlling the welding deformation of the CRDM filter component.

[0081] In the present utility model, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; the term "a plurality" refers to two or more, unless otherwise clearly defined. Terms such as "installation", "connection", "connection", and "fixation" should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0082] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", and "rear" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be construed as a limitation of the present utility model.

[0083] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0084] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A welding tool for a CRDM filter assembly, characterized in that: include: A clamping assembly, on which the CRDM filter assembly is arranged, and the clamping assembly is used to clamp the CRDM filter assembly; A clamping assembly, the clamping assembly includes a clamping plate, a support member and a driving member, the support member is connected to the clamping assembly, the driving member is arranged on the support member, and the output end of the driving member is connected to the clamping plate for driving the clamping plate to be pressed onto the clamping ring of the CRDM filter assembly.

2. The welding tooling for CRDM filter assembly according to claim 1 is characterized in that: The clamping assembly comprises: A clamping chassis, wherein a slide groove is formed on the clamping chassis; A clamping portion, wherein the clamping portion is slidably connected to the clamping chassis through the sliding groove, and the clamping portion is used to abut against the base of the CRDM filter assembly.

3. The welding tooling for CRDM filter assembly according to claim 2 is characterized in that: The clamping components are divided into multiple groups, and the sizes of the clamping chassis and the sizes of the clamping parts among the multiple groups of clamping components are different.

4. The welding tooling for CRDM filter assembly according to claim 2 is characterized in that: Each of the clamping assemblies includes a plurality of clamping parts, and the sizes of the plurality of clamping parts in each of the clamping assemblies are the same.

5. The welding tooling for CRDM filter assembly according to claim 2 is characterized in that: The clamping assembly also includes: A supporting and positioning base, wherein the supporting and positioning base is arranged on the clamping chassis; Wherein, the CRDM filter assembly is used to be arranged on the supporting and positioning base, and the supporting member is connected to the supporting and positioning base.

6. The welding tool for CRDM filter assembly according to claim 5, characterized in that: The support member is door-shaped and is connected to the support positioning base via bolts.

7. The welding tool for CRDM filter assembly according to claim 5, characterized in that: A positioning protrusion is formed on the support and positioning base, and the base of the CRDM filter assembly is positioned on the support and positioning base through the positioning protrusion.

8. The welding tooling for CRDM filter assembly according to claim 1, characterized in that: The driving member comprises: a guide thread sleeve connected to the support member; A screw rod, the screw rod passing through the guide thread sleeve and the clamping plate; A torque wrench is used to be connected to the screw rod.

9. The welding tool for CRDM filter assembly according to claim 1, characterized in that: An assembly hole is formed at the end of the pressing plate, and the driving member is connected to the assembly hole.

10. The welding tool for CRDM filter assembly according to claim 1, characterized in that: The compression plate is formed with an escape portion to escape the handle of the CRDM filter assembly.

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