Nuclear power plant pipeline welding device
By introducing Z-axis and X-axis adjustment mechanisms into the pipeline welding device of nuclear power plants, and using a servo motor to drive a ball screw to adjust the position of the welding mechanism, the problem of fixed welding torch position was solved, enabling efficient welding of pipes of different diameters and improving the applicability and efficiency of the device.
Patent Information
- Application Number
- CN202520316881.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The welding torch position of existing nuclear power plant pipe welding machines is fixed, which cannot adapt to the welding requirements of pipes with different diameters, resulting in low efficiency.
A welding device for nuclear power plant pipelines was designed, comprising a Z-axis adjustment mechanism and an X-axis adjustment mechanism. The position adjustment of the welding mechanism is achieved by a servo motor driving a ball screw. Combined with a welding torch and a molten pool camera, it can adapt to welding requirements at different positions.
It improves the applicability and efficiency of nuclear power plant pipeline welding equipment, can adapt to pipeline welding of different diameters, and has a compact structure suitable for narrow environments.
Smart Images
Figure CN223789790U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nuclear power technology, and in particular to a welding device for pipelines in nuclear power plants. Background Technology
[0002] Nuclear power plants have numerous pipelines. When pipeline welding is required, it is usually done manually. However, manual welding is inefficient. There are also welding machines available, but the welding torch position of these machines is usually fixed. Since the welding requirements for pipelines of different diameters may differ, these welding machines are only suitable for pipelines of a certain size. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a welding device for pipelines in nuclear power plants.
[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a nuclear power plant pipeline welding device, including a Z-axis adjustment mechanism, an X-axis adjustment mechanism, a connecting plate and a welding mechanism;
[0005] The Z-axis adjustment mechanism includes a first housing, a first drive motor, a first lead screw, a first lead screw nut seat, and a sliding plate. The first drive motor and the first lead screw are installed inside the first housing, and the axial direction of the first lead screw is parallel to the Z-axis. The first lead screw nut seat is installed on the first lead screw. The first end of the first drive motor and the first end of the first lead screw both protrude from the same side of the first housing. The first end of the first drive motor is provided with a first drive gear, and the first end of the first lead screw is provided with a first driven gear. The first drive gear and the first driven gear mesh with each other. The sliding plate is connected to the first lead screw nut seat.
[0006] The X-axis adjustment mechanism includes a second housing, a second drive motor, a second lead screw, and a second lead screw nut seat. The second housing is connected to the slide plate. The second drive motor and the second lead screw are installed inside the second housing. The axial direction of the second lead screw is parallel to the X-axis. The second lead screw nut seat is installed on the second lead screw. The first end of the second drive motor and the first end of the second lead screw both protrude from the same side of the second housing. The first end of the second drive motor is provided with a second drive gear, and the first end of the second lead screw is provided with a second driven gear. The second drive gear and the second driven gear mesh with each other. The connecting plate is connected to the second lead screw nut seat.
[0007] The welding mechanism includes a welding torch and a molten pool camera mounted on the connecting plate.
[0008] In some embodiments, the first housing is further provided with a first limiting groove, the first limiting groove extends along the Z direction, and a portion of the structure of the first lead screw nut seat is located within the first limiting groove.
[0009] In some embodiments, the first housing is provided with two slide rails on both sides of the first limiting groove, and the slide rails extend along the Z direction;
[0010] The slide plate is equipped with a slider that can be movably mounted on the slide rail.
[0011] In some embodiments, the second housing is further provided with a second limiting groove, the second limiting groove extends along the X direction, and a portion of the structure of the second lead screw nut seat is located within the second limiting groove.
[0012] In some embodiments, the X-axis adjustment mechanism further includes a connecting gear, which is mounted on the second housing and meshes with the second drive gear and the second driven gear, respectively.
[0013] In some embodiments, the X-axis adjustment mechanism further includes a protective shell connected to the second housing for covering the outer periphery of the second drive gear and the second driven gear.
[0014] In some embodiments, both the first drive motor and the second drive motor are servo motors.
[0015] In some embodiments, both the first lead screw and the second lead screw are ball screws.
[0016] In some embodiments, the number of molten pool cameras is two, and the two molten pool cameras are spaced apart on both sides of the welding torch.
[0017] In some embodiments, the connecting plate is detachably connected to the second lead screw nut seat.
[0018] The present invention has the following advantages: the welding mechanism of the nuclear power plant pipeline welding device can be adjusted in the Z and X directions, thereby adjusting the position of the welding torch of the welding mechanism to perform welding operations at different positions of the nuclear power plant pipeline, which can improve the practicality of the nuclear power plant pipeline welding device. Attached Figure Description
[0019] 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 considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of a nuclear power plant pipe welding machine in some embodiments of this utility model;
[0021] Figure 2 This is one of the structural schematic diagrams of the Z-axis adjustment mechanism and the X-axis adjustment mechanism in some embodiments of this utility model;
[0022] Figure 3 This is the second schematic diagram of the Z-axis adjustment mechanism and the X-axis adjustment mechanism in some embodiments of this utility model;
[0023] Figure 4 This is the third of the structural schematic diagrams of the Z-axis adjustment mechanism and the X-axis adjustment mechanism in some embodiments of this utility model;
[0024] Figure 5 This is a partial exploded view of the Z-axis adjustment mechanism and the X-axis adjustment mechanism in some embodiments of this utility model;
[0025] Figure 6 This is a partial structural schematic diagram of the Z-axis adjustment mechanism and the X-axis adjustment mechanism in some embodiments of this utility model;
[0026] Figure 7 This is a schematic diagram of the welding mechanism in some embodiments of this utility model. Detailed Implementation
[0027] 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.
[0028] 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 "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 "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.
[0029] 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.
[0030] See Figure 1 This utility model discloses a nuclear power plant pipe welding machine, which may include a nuclear power plant pipe welding device. The machine may also include a moving mechanism 50 and a mounting rail 60, which can be installed on the outer periphery of the nuclear power plant pipe 100. The nuclear power plant pipe welding device is connected to the moving mechanism 50, which drives the welding device to move on the mounting rail 60 to perform welding operations. The moving mechanism 50 and the mounting rail 60 may be based on existing technology and are not limited herein.
[0031] like Figures 2 to 7 As shown, in some embodiments, the nuclear power plant pipeline welding apparatus may include a Z-axis adjustment mechanism 10, an X-axis adjustment mechanism 20, a connecting plate 30, and a welding mechanism 40.
[0032] The Z-axis adjustment mechanism 10 includes a first housing 11, a first drive motor 12, a first lead screw 13, a first lead screw nut seat 14, and a slide plate 15. The first housing 11 may be a cylindrical structure, and the aforementioned moving mechanism 50 may be installed inside the first housing 11. The first drive motor 12 and the first lead screw 13 are installed inside the first housing 11. The axial direction of the first lead screw 13 is parallel to the Z-direction. The first lead screw nut seat 14 is installed on the first lead screw 13. The first end of the first drive motor 12 and the first end of the first lead screw 13 both protrude from the same side of the first housing 11. The first end of the first drive motor 12 is provided with a first drive gear 16, and the first end of the first lead screw 13 is provided with a first driven gear 17. The first drive gear 16 and the first driven gear 17 mesh with each other. The sliding plate 15 is connected to the first lead screw nut seat 14. The first drive motor 12 drives the first drive gear 16 to rotate, and the first drive gear 16 drives the first driven gear 17 to rotate, thereby causing the first lead screw nut seat 14 to move along the axial direction of the first lead screw 13, and then driving the sliding plate 15 to move along the Z-direction. Figure 1 Taking direction as an example, it can be the axial direction of the nuclear power plant pipeline 100.
[0033] The X-axis adjustment mechanism 20 includes a second housing 21, a second drive motor 22, a second lead screw 23, and a second lead screw nut seat 24. The second housing 21 can be a cylindrical structure and is connected to the slide plate 15. For example, the second housing 21 and the slide plate 15 can be an integral structure. The second drive motor 22 and the second lead screw 23 are installed inside the second housing 21, and the axial direction of the second lead screw 23 is parallel to the X-axis. The second lead screw nut seat 24 is installed on the second lead screw 23. The first end of the second drive motor 22 and the first end of the second lead screw 23 both protrude from the same side of the second housing 21. The first end of the second drive motor 22 is provided with a second drive gear 25, and the first end of the second lead screw 23 is provided with a second driven gear 26. The second drive gear 25 and the second driven gear 26 mesh with each other. The connecting plate 30 is connected to the second lead screw nut seat 24, and the connecting plate 30 and the second lead screw nut seat 24 are detachably connected, for example, by bolts or screws.
[0034] The second drive motor 22 drives the second drive gear 25 to rotate, which in turn drives the second driven gear 26 to rotate. This causes the second lead screw nut seat 24 to move axially along the second lead screw 23, which in turn moves the connecting plate 30 along the X-direction. Figure 1 For example, the direction can be the radial direction of the nuclear power plant pipeline 100.
[0035] The welding mechanism 40 includes a welding torch 41 mounted on a connecting plate 30 and a molten pool camera 42, such as Figure 7As shown, in some embodiments, there are two molten pool cameras 42, which are spaced apart on both sides of the welding torch 41.
[0036] In this application, since the welding mechanism 40 is mounted on the connecting plate 30, when the connecting plate 30 moves in the Z and X directions, the welding mechanism 40 moves accordingly, allowing adjustment of the position of the welding torch 41 to perform welding operations at different locations on the nuclear power plant pipeline 100, thus improving the practicality of the nuclear power plant pipeline welding device. Furthermore, the nuclear power plant pipeline welding device has a relatively compact structure, making it suitable for confined working environments.
[0037] like Figure 5 As shown, in some embodiments, the first housing 11 is further provided with a first limiting groove 11a, which extends along the Z direction. A portion of the structure of the first lead screw nut seat 14 is located in the first limiting groove 11a, which can guide and limit the first lead screw nut seat 14.
[0038] like Figure 4 and Figure 5 As shown, in some embodiments, the first housing 11 has two slide rails 18 on each side of the first limiting groove 11a. The slide rails 18 extend along the Z direction. One slide rail 18 may be installed on the top surface of the first housing 11, and the other slide rail 18 may be installed on the side surface of the first housing 11. The slide plate 15 has a slider 19 movably mounted on the slide rail 18. The slider 19 may be detachably connected to the slide plate 15, or the slider 19 may be fixedly connected to the slide plate 15. No specific limitation is made here.
[0039] like Figure 3 As shown, in some embodiments, the second housing 21 is further provided with a second limiting groove 21a, which extends along the X direction, and a portion of the structure of the second lead screw nut seat 24 is located within the second limiting groove 21a. The second limiting groove 21a can guide and limit the second lead screw nut seat 24.
[0040] like Figure 5 and Figure 6 As shown, in some embodiments, the X-axis adjustment mechanism 20 further includes a connecting gear 27, which is mounted on the second housing 21 and meshes with the second drive gear 25 and the second driven gear 26 respectively. Of course, the connecting gear 27 may not be provided.
[0041] like Figure 5As shown, the X-axis adjustment mechanism 20 also includes a protective shell 28 connected to the second housing 21 for covering the outer periphery of the second drive gear 25 and the second driven gear 26, so as to protect the second drive gear 25 and the second driven gear 26 and prevent impurities from entering the teeth of the second drive gear 25 and the second driven gear 26 during welding operations and causing jamming.
[0042] In some embodiments, both the first drive motor 12 and the second drive motor 22 are servo motors. Servo motors have high adjustment accuracy and forward and reverse rotation functions.
[0043] In some embodiments, both the first lead screw 13 and the second lead screw 23 are ball screws.
[0044] In some embodiments, the connecting plate 30 is generally an arc-shaped plate, a C-shaped plate, or something similar. Figure 7 The bent plate structure shown.
[0045] 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 nuclear power plant pipe welding apparatus, characterized by, The Z-direction adjusting mechanism (10), the X-direction adjusting mechanism (20), the connecting plate (30) and the welding mechanism (40) are included. The Z-direction adjusting mechanism (10) includes a first housing (11), a first driving motor (12), a first screw rod (13), a first screw rod nut seat (14) and a sliding plate (15), the first driving motor (12) and the first screw rod (13) are installed in the first housing (11), the axial direction of the first screw rod (13) is parallel to the Z-direction, the first screw rod nut seat (14) is installed on the first screw rod (13), the first end of the first driving motor (12) and the first end of the first screw rod (13) protrude from the same side of the first housing (11), the first end of the first driving motor (12) is provided with a first driving gear (16), the first end of the first screw rod (13) is provided with a first driven gear (17), the first driving gear (16) and the first driven gear (17) are meshed with each other, and the sliding plate (15) is connected with the first screw rod nut seat (14). The X-direction adjusting mechanism (20) includes a second housing (21), a second driving motor (22), a second screw rod (23) and a second screw rod nut seat (24), the second housing (21) is connected with the sliding plate (15), the second driving motor (22) and the second screw rod (23) are installed in the second housing (21), the axial direction of the second screw rod (23) is parallel to the X-direction, the second screw rod nut seat (24) is installed on the second screw rod (23), the first end of the second driving motor (22) and the first end of the second screw rod (23) protrude from the same side of the second housing (21), the first end of the second driving motor (22) is provided with a second driving gear (25), the first end of the second screw rod (23) is provided with a second driven gear (26), the second driving gear (25) and the second driven gear (26) are meshed with each other, and the connecting plate (30) is connected with the second screw rod nut seat (24). The welding mechanism (40) includes a welding gun (41) and a molten pool camera (42) installed on the connecting plate (30).
2. The nuclear power plant pipe welding apparatus of claim 1, wherein, The first housing (11) is further provided with a first limiting groove (11a), the first limiting groove (11a) extends along the Z-direction, and part of the structure of the first screw rod nut seat (14) is located in the first limiting groove (11a).
3. The nuclear power plant piping welding apparatus according to claim 2, characterized by, The first housing (11) is located on both sides of the first limiting groove (11a) and is provided with two slide rails (18), and the slide rails (18) extend along the Z-direction. The sliding plate (15) is provided with a sliding block (19) movably installed on the slide rails (18).
4. The nuclear power plant piping welding apparatus according to claim 1, characterized by, The second housing (21) is further provided with a second limiting groove (21a), the second limiting groove (21a) extends along the X-direction, and part of the structure of the second screw rod nut seat (24) is located in the second limiting groove (21a).
5. The nuclear power plant piping welding apparatus according to claim 1, wherein, The X-direction adjusting mechanism (20) further comprises a connecting gear (27) mounted on the second housing (21), and the connecting gear (27) is engaged with the second driving gear (25) and the second driven gear (26) respectively.
6. The nuclear power plant piping welding apparatus according to claim 1, wherein, The X-direction adjusting mechanism (20) further comprises a protective shell (28) connected with the second housing (21) and covering the outer periphery of the second driving gear (25) and the second driven gear (26).
7. The nuclear power plant piping welding apparatus according to claim 1, wherein, The first driving motor (12) and the second driving motor (22) are both servo motors.
8. The nuclear power plant piping welding apparatus according to claim 1, wherein, The first lead screw (13) and the second lead screw (23) are both ball screws.
9. The nuclear power plant piping welding apparatus according to claim 1, wherein, The number of the molten pool cameras (42) is two, and the two molten pool cameras (42) are arranged on the two sides of the welding torch (41) respectively.
10. The nuclear power plant piping welding apparatus according to claim 1, wherein, The connecting plate (30) and the second lead screw nut seat (24) are detachably connected.