Nuclear power steel plate prefabricated part laser underwater cleaning device

Abstract

The utility model provides a laser underwater cleaning device for nuclear power steel plate prefabricated parts. The laser underwater cleaning device comprises a workbench, an X-axis sliding rail, a Y-axis sliding rail, a Z-axis sliding rail assembly, a liquid bin, a cleaning machine, a camera, a laser machining head and a continuous laser. The liquid bin is installed on the workbench, and the workpiece to be machined is located below the liquid level in the liquid bin. A continuous laser is mounted in the workbench; the X-axis sliding rail and the Y-axis sliding rail are installed on a fixing support of the workbench. The Z-axis sliding rail assembly and the camera are installed on the Y-axis sliding rail. The controller determines a cleaning area in the workpiece to be machined through image recognition; the laser machining head is installed on the Z-axis sliding rail assembly, the continuous laser device is connected with the laser machining head, and the laser machining head moves on the X-axis sliding rail and the Y-axis sliding rail through the controller. According to the utility model, the laser underwater cleaning is used for replacing the traditional mechanical polishing cleaning, so that the heavy work of workers is reduced, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of laser cleaning equipment technology, specifically to a laser underwater cleaning device for nuclear power plant steel plate prefabrication components. Background Technology

[0002] Nuclear power plant precast steel plates are one of the most important materials used in key equipment and structures during nuclear power plant construction. They are primarily made of high-strength steel and typically undergo rigorous processing and quality testing to ensure reliability and safety during nuclear power plant operation. The surfaces of nuclear power plant precast steel plates usually require cleaning to ensure a smooth and defect-free finish. Traditionally, this is done through manual mechanical grinding, which is cumbersome and inefficient when processing precast plates of different shapes.

[0003] Laser cleaning, as a non-contact, environmentally friendly surface cleaning method, effectively protects the processed surface and prevents damage to the material surface. Laser cleaning technology has been gradually applied both domestically and internationally in areas such as rust removal from pipelines in the machinery industry and paint removal from metal surfaces. Continuous underwater laser cleaning can avoid repeated oxidation of the cleaned surface and improve cleaning efficiency. Summary of the Invention

[0004] In view of the shortcomings of the surface cleaning technology for nuclear power plant steel plate prefabrication, the purpose of this utility model is to improve the surface cleaning effect and increase the cleaning efficiency of nuclear power plant steel plate prefabrication, and to provide a laser underwater cleaning device for nuclear power plant steel plate prefabrication, which can solve the problems of repeated oxidation and low efficiency.

[0005] This utility model achieves the above-mentioned technical objectives through the following technical means.

[0006] A laser underwater cleaning device for nuclear power plant steel plate prefabricated components includes a worktable, an X-axis slide rail, a Y-axis slide rail, a Z-axis slide rail assembly, a liquid tank, a cleaning machine, a camera, a laser processing head, and a continuous laser.

[0007] The liquid tank is installed on the worktable, and the workpiece to be processed is located below the liquid surface in the liquid tank. A continuous laser is installed in the worktable to generate a laser beam. The X-axis slide rail and Y-axis slide rail are respectively installed on the fixed bracket of the worktable. The Z-axis slide rail assembly and the camera are respectively installed on the Y-axis slide rail. The camera is aimed at the workpiece to be processed to acquire a pre-formed image of the workpiece shape. The controller uses image recognition to determine the cleaning area in the workpiece. The laser processing head is installed on the Z-axis slide rail assembly, and the continuous laser is connected to the laser processing head. The controller moves the laser processing head on the X-axis slide rail and Y-axis slide rail to achieve laser cleaning.

[0008] Furthermore, the outlet of the liquid tank is connected to the cleaning machine, and the outlet of the cleaning machine is connected to the inlet of the liquid tank via a pump.

[0009] Furthermore, the laser processing head includes a shaping mirror, a focusing lens, and a protective mirror; the shaping mirror, focusing lens, and protective mirror are located inside the housing of the laser processing head; the laser beam generated by the continuous laser is converted into a rectangular beam by the shaping mirror, and the rectangular beam is emitted from the laser head through the focusing lens and the protective mirror in sequence, irradiating the workpiece to be processed.

[0010] Furthermore, the housing of the laser processing head is provided with a protective gas inlet pipe for introducing protective gas into the housing.

[0011] Furthermore, the Z-axis slide rail assembly includes a slide rail, a locking bracket, and a rotating connector. The laser processing head is mounted on the slide rail via the rotating connector and the locking bracket, and the locking bracket is movably mounted on the Y-axis slide rail.

[0012] Furthermore, a liquid level sensor is installed on the liquid tank to measure the water level; a flow meter is installed at the outlet of the liquid tank to measure the flow rate.

[0013] Furthermore, the cleaning machine includes a filter and a magnetic iron remover. The filter includes at least two filter screens, and a magnetic iron remover is provided between the two filter screens to remove metal particles.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The nuclear power steel plate prefabricated component laser underwater cleaning device of this utility model reduces the heavy manual work and improves the cleaning efficiency by using laser underwater cleaning instead of traditional mechanical grinding and cleaning. Furthermore, by using continuous laser underwater cleaning, repeated oxidation is avoided.

[0016] 2. The laser underwater cleaning device for nuclear power steel plate prefabricated parts described in this utility model places the prefabricated parts into a liquid tank, captures shape images with a camera, transmits them to a control terminal, and uses image recognition technology to determine the cleaning area, thereby realizing automatic positioning and processing of the cleaning area. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are some embodiments of this utility model. For those skilled in the art, it is obvious that other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the laser underwater cleaning device for nuclear power steel plate prefabrication components described in this utility model.

[0019] Figure 2This is a structural diagram of the laser processing head described in this utility model.

[0020] Figure 3 This is a structural diagram of the liquid tank described in this utility model.

[0021] Figure 4 This is a structural diagram of the Z-axis slide rail assembly described in this utility model.

[0022] Figure 5 This is a schematic diagram of the nuclear power steel plate prefabrication component described in this utility model.

[0023] In the picture:

[0024] 1-Water chiller; 2-X-axis slide rail; 3-Y-axis slide rail; 4-Laser processing head; 41-Shaping mirror; 42-Focusing lens; 43-Protective mirror; 44-Protective air inlet pipe; 5-Z-axis slide rail assembly; 51-Slide rail; 52-Locking bracket; 53-Rotation connector; 6-Camera; 7-Fixed bracket; 8-Washing machine; 9-Liquid tank; 91-Water level scale line; 92-Liquid level sensor; 93-Flow meter; 94-Inlet; 95-Outlet; 10-Workbench; 11-Control platform; 12-Controller. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] like Figure 1 As shown, the underwater laser cleaning device for nuclear power steel plate prefabrication of this utility model includes a worktable 10, an X-axis slide rail 2, a Y-axis slide rail 3, a Z-axis slide rail assembly 5, a liquid tank 9, a cleaning machine 8, a camera 6, a laser processing head 4, a continuous laser and a controller 12.

[0029] The liquid tank 9 is installed on the worktable 10, and the workpiece to be processed is located below the liquid surface in the liquid tank 9. A continuous laser is installed in the worktable 10 to generate a laser beam. The X-axis slide rail 2 and the Y-axis slide rail 3 are installed perpendicularly on the fixed bracket 7, wherein the X-axis slide rail 2 is located below the Y-axis slide rail 3 and fixed on the fixed bracket 7, and the two ends of the Y-axis slide rail 3 are connected to the X-axis slide rail 2. A servo motor is installed inside the Y-axis slide rail 3 to drive the Y-axis slide rail 3 to move in a plane on the X-axis slide rail 2. The Z-axis slide rail assembly 5 and the camera 6 are respectively installed on the Y-axis slide rail 3. The Z-axis slide rail assembly 5 is installed vertically on the Y-axis slide rail 3 and is perpendicular to the liquid tank 9. The camera 6 is aimed at the workpiece to be processed to obtain a pre-formed image of the shape of the workpiece. The controller 12 uses image recognition to determine the cleaning area in the workpiece to be processed. The laser processing head 4 is installed on the Z-axis slide rail assembly 5, and the continuous laser is connected to the laser processing head 4. The controller moves the laser processing head 4 on the X-axis slide rail 2 and the Y-axis slide rail 3 to achieve laser cleaning.

[0030] like Figure 2 As shown, the laser processing head 4 includes a shaping mirror 41, a focusing lens 42, and a protective mirror 43. The shaping mirror 41, focusing lens 42, and protective mirror 43 are located inside the housing of the laser processing head 4. The laser beam generated by the continuous laser is converted into a rectangular beam by the shaping mirror 41. The rectangular beam then passes sequentially through the focusing lens 42 and the protective mirror 43 before exiting the laser head and irradiating the workpiece to be processed. A protective gas inlet pipe 44 is provided on the housing of the laser processing head 4 for introducing protective gas into the housing.

[0031] The Z-axis slide rail assembly 5 is used to adjust the laser focal length and the processing angle of the laser processing head 4, such as... Figure 3As shown, the Z-axis slide rail assembly 5 includes a slide rail 51, a locking bracket 52, and a rotating connector 53. The laser processing head 4 is mounted on the slide rail 51 via the rotating connector 53 and the locking bracket 52. The locking bracket 52 is movably mounted on the Y-axis slide rail 3. The laser processing head 4 moves vertically on the slide rail 51, changing its position and height. The processing angle of the laser processing head 4 is adjusted by rotating the connector 53.

[0032] In the Figure 5 When processing the workpiece shown, place it in the liquid tank 9; as... Figure 4 As shown, the liquid tank 9 includes a water level scale 91, a liquid level sensor 92, a flow meter 93, an inlet 94, and an outlet 95. The outlet 95 of the liquid tank 9 is connected to a cleaning machine 8, and the outlet of the cleaning machine 8 is connected to the inlet 94 of the liquid tank 9 via a pump, achieving water recycling. The liquid level sensor 92 detects whether the liquid level meets the requirement. If the height requirement is not met, a signal is fed back to the controller 12 to increase or decrease the liquid level in the tank. The liquid level sensor 92 is installed on the liquid tank 9 to measure the water level. The flow meter 93 is installed at the outlet of the liquid tank 9 to measure the flow rate. The controller 12 can adjust the pump speed according to the flow rate measured by the flow meter 93.

[0033] The cleaning machine 8 includes a filter and a magnetic iron remover. The filter comprises at least two stages of filter screens, with a magnetic iron remover positioned between the two stages to remove metal particles. In this embodiment, the first-stage filter screen is located in a first filtration unit, and the second-stage filter screen is located in a second filtration unit. A magnetic iron remover is positioned between the first and second filtration units to adsorb metal particles smaller than the first-stage filter screen, preventing clogging of the second filtration unit. The first-stage filter screen has a mesh size of 100-200 mesh, and the second-stage filter screen has a mesh size of 400-500 mesh.

[0034] A controller 12 is installed at one end of the worktable 10. The controller 12 is used to input commands, which are transmitted to the control system inside the worktable 10 to control the processing work performed by the entire processing device. After placing the workpiece to be processed in the liquid tank, adjust the rotating connector 53 to make the laser processing head 4 perpendicular to the workpiece. Figure 5 The surface is processed with an input power of 1500W, a processing speed of 2m / min, a focal length of 25cm, and a processing interval of 1cm. Camera 6 captures images of the workpiece to be processed in the liquid tank 9. Figure 5 The controller 12 recognizes and processes the image, locates the processing boundary, controls the movement of the X-axis slide rail 2 and Y-axis slide rail 3 to position the laser processing head 4 at the processing starting point, and moves the Z-axis slide rail assembly 5 to adjust the laser focal length.

[0035] The nuclear power steel plate prefabrication laser underwater cleaning device of this utility model reduces the heavy manual work and improves cleaning efficiency by using laser underwater cleaning instead of traditional mechanical grinding and cleaning. Furthermore, by using continuous laser underwater cleaning, repeated oxidation is avoided.

[0036] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0037] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. All equivalent embodiments or modifications made without departing from the spirit of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A nuclear power steel plate preform laser underwater cleaning device, characterized in that, It comprises a workbench (10), an X-axis slide rail (2), a Y-axis slide rail (3), a Z-axis slide rail assembly (5), a liquid tank (9), a cleaning machine (8), a camera (6), a laser processing head (4) and a continuous laser; The liquid tank (9) is installed on the workbench (10), and the workpiece to be processed is located below the liquid level in the liquid tank (9); the continuous laser is installed in the workbench (10) to generate a laser beam; the X-axis slide rail (2) and the Y-axis slide rail (3) are respectively installed on the fixed support of the workbench (10), the Z-axis slide rail assembly (5) and the camera (6) are respectively installed on the Y-axis slide rail (3), the camera (6) is aligned with the workpiece to be processed to obtain a picture of the shape of the workpiece; the controller determines the cleaning area in the workpiece to be processed by image recognition; the laser processing head (4) is installed on the Z-axis slide rail assembly (5), the continuous laser is connected with the laser processing head (4), and the controller moves the laser processing head (4) on the X-axis slide rail (2) and the Y-axis slide rail (3) to realize laser cleaning.

2. The laser underwater cleaning device for a nuclear power steel plate preform according to claim 1, characterized in that, The water outlet of the liquid tank (9) is connected with the cleaning machine (8), and the outlet of the cleaning machine (8) is communicated with the water inlet of the liquid tank (9) through a pump.

3. The laser underwater cleaning device for a nuclear power steel plate preform according to claim 1, characterized in that, The laser processing head (4) comprises a shaping mirror (41), a focusing lens (42) and a protective mirror (43); the shaping mirror (41), the focusing lens (42) and the protective mirror (43) are located in the shell of the laser processing head (4); the laser beam generated by the continuous laser passes through the shaping mirror (41) to change the laser beam into a rectangular beam, and the rectangular beam is sequentially irradiated on the workpiece to be processed through the focusing lens (42) and the protective mirror (43) from the laser head.

4. The laser underwater cleaning device for a nuclear power steel plate preform according to claim 3, characterized in that, The shell of the laser processing head (4) is provided with a protective gas inlet pipe (44) for inputting protective gas into the shell.

5. The laser underwater cleaning device for nuclear power steel plate preform according to claim 1, characterized in that, The Z-axis slide rail assembly (5) comprises a slide rail (51), a locking support (52) and a rotating connector (53), the laser processing head (4) is installed on the slide rail (51) through the rotating connector (53) and the locking support (52), and the locking support (52) is movably installed on the Y-axis slide rail (3).

6. The laser underwater cleaning device for a nuclear power steel plate preform according to claim 1, characterized in that, A liquid level sensor (92) is installed on the liquid tank (9) to measure the water level; a flowmeter (93) is installed at the outlet of the liquid tank (9) to measure the flow rate.

7. The laser underwater cleaning device for nuclear power steel plate preform according to claim 2, characterized in that, The cleaning machine (8) comprises a filter and a magnetic iron remover, the filter comprises at least two levels of filter screens, and a magnetic iron remover is arranged between the two levels of filter screens to remove metal particles.

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