Cladding nozzle and cladding device

Abstract

The application discloses a cladding nozzle and a cladding device, and relates to the field of laser cladding, and aims at solving the problem of inconvenient adjustment of the powder focus length of the cladding nozzle. The cladding nozzle comprises the following parts: a laser channel arranged in a main body; a rotating sleeve rotationally connected with the main body around an axis; a moving sleeve threadedly connected with the rotating sleeve, the moving sleeve being axially movably connected with the main body, and the moving sleeve being axially moved relative to the main body by rotating the rotating sleeve; a plurality of powder feeding pipes being spacedly arranged around the main body, and the axes of the powder feeding pipes all intersect with a same point on an extension line of the axis of the laser channel, and one end of the powder feeding pipe being rotationally and supportingly connected with one end of the main body; two ends of each connecting piece being rotationally connected with the other end of the powder feeding pipe and the moving sleeve respectively, and the connecting piece being used for driving the powder feeding pipe to rotate around the one end of the main body. By rotating the rotating sleeve, the moving sleeve is axially moved, the connecting piece is pulled to move, the connecting piece drives the powder feeding pipe to rotate around the one end of the main body by an angle, the powder feeding angle of the powder feeding pipe is adjusted by rotating the powder feeding pipe, and the powder focus length is adjusted conveniently.

Description

Technical Field

[0001] This invention relates to the field of laser cladding, and more specifically to a cladding nozzle and a cladding device. Background Technology

[0002] Laser cladding refers to a process in which a selected coating material is placed on the surface of a substrate using different feeding methods. This material is then irradiated with a laser, causing both the coating material and a thin layer on the substrate surface to melt simultaneously and solidify rapidly. This results in a surface coating with extremely low dilution and a metallurgical bond with the substrate, significantly improving the wear resistance, corrosion resistance, heat resistance, oxidation resistance, and electrical properties of the substrate surface. This achieves surface modification or repair, satisfying specific performance requirements for the material surface while conserving significant amounts of valuable elements. Because the workpieces being repaired vary in shape and depth, a coaxial multi-point powder feeding method is often used for cladding. This method requires changing and installing nozzles with different powder coke lengths, and each nozzle change necessitates recalibrating parameters, making the adjustment of the powder coke length of the cladding nozzle inconvenient. Summary of the Invention

[0003] The purpose of this invention is to provide a cladding nozzle and a cladding device for conveniently adjusting the coke powder length of the cladding nozzle.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] In a first aspect, the present invention provides a cladding nozzle, comprising:

[0006] The main body has an internal laser channel for the laser to pass through.

[0007] A rotating sleeve, which rotates around the axis of the rotating sleeve and is connected to the main body;

[0008] The movable sleeve is threadedly connected to the rotating sleeve. The movable sleeve is axially movable with the main body. The rotation of the rotating sleeve drives the movable sleeve to move axially relative to the main body.

[0009] Multiple powder feeding tubes are distributed at intervals around the outer wall of the main body. The axes of the outlets of the multiple powder feeding tubes all intersect at the same point on the extension line of the axis of the laser channel. The end of the powder feeding tube near the outlet is rotatably supported and connected to one end of the main body.

[0010] Multiple connectors are provided, with one end of each connector rotatably connected to the end of a powder feeding pipe away from the outlet, and the other end of each connector rotatably connected to a movable sleeve. The connectors are used to drive the powder feeding pipe to rotate around the end closer to the outlet.

[0011] Optionally, in the above-mentioned cladding nozzle, the main body includes: a first main body and a second main body, the second main body being coaxially connected to the first main body, and the first main body and the second main body being connected by fasteners;

[0012] Alternatively, the first and second main bodies can be welded together;

[0013] Alternatively, the first and second main bodies can be a single structure.

[0014] Optionally, in the above-mentioned cladding nozzle, the inner wall of the second body is provided with a cooling chamber, the cooling chamber is provided with a water inlet connector and a water outlet connector, and the cooling chamber is used to inject coolant.

[0015] Optionally, in the above-mentioned cladding nozzle, the inner wall of the rotating sleeve is provided with an annular groove, and the outer wall of the first body is provided with an annular flange. The annular flange is engaged with the annular groove, and the rotating sleeve rotates relative to the first body around the axis of the rotating sleeve through the cooperation between the annular groove and the annular flange.

[0016] Optionally, in the above-mentioned cladding nozzle, the main body further includes a cover, the cover is disposed on the first main body, the rotating sleeve is rotatably connected to the first main body about the axis of the rotating sleeve, the cover is disposed on the outer wall of the rotating sleeve, and the side wall of the cover is provided with an operating hole, the operating hole is used to move the rotating sleeve to rotate relative to the first main body about the axis of the rotating sleeve inside the cover.

[0017] Optionally, in the above-mentioned cladding nozzle, the end of the second body away from the first body is a conical structure, and the top of the conical structure is provided with a through hole for the laser to pass through.

[0018] Optionally, in the above-mentioned cladding nozzle, the inner wall of the movable sleeve is provided with a guide groove, the guide groove is parallel to the axial direction of the movable sleeve, and the cladding nozzle also includes a positioning component, one end of which is fixedly connected to the first main body, and the other end of which is slidably engaged with the guide groove, the positioning component being used to slide along the guide groove.

[0019] Optionally, in the above-mentioned cladding nozzle, the outer wall of the rotating sleeve is provided with anti-slip texture.

[0020] Optionally, in the above-mentioned cladding nozzle, the angle between the axis of the powder feeding pipe outlet and the axis of the laser channel is 30° to 35°.

[0021] Secondly, the present invention also provides a cladding device, comprising: a robotic arm, a laser generator, a laser head, a powder feeding pipe, a powder feeding mechanism, and a cladding nozzle, characterized in that the cladding nozzle is any of the cladding nozzles described above, the cladding nozzle, the laser generator, and the powder feeding mechanism are all disposed on the robotic arm, the laser generator is connected to the laser head, the laser head is connected to the main body, and the inlet of the powder feeding pipe is connected to the powder feeding mechanism.

[0022] Compared with existing technologies, when using the above technical solution, the operator moves the rotating sleeve to rotate around the main body. The rotation of the rotating sleeve drives the moving sleeve to move axially. At the same time, the moving sleeve pulls the connecting piece, which drives the powder feeding tube to rotate around one end of the main body. The powder feeding angle of the powder feeding tube is adjusted by the rotation of the rotating sleeve. At this time, powder is fed into the powder feeding tube. The powder sprayed out along the axial direction of the outlet end of the powder feeding tube, and the powder sprayed from multiple powder feeding tubes converges at the same point on the extension line of the laser channel axis, forming a powder spot. The powder spot and the powder feeding tube outlet end are along the axial direction of the laser channel. The vertical distance is the powder coke. When the powder feeding angle is large, the powder coke length is shorter, and the powder spot formed at the same point on the extension line of the laser channel axis is smaller. When the powder feeding angle is small, the powder coke length is longer, and the powder spot formed at the same point on the extension line of the laser channel axis is larger. The powder feeding angle of multiple powder feeding tubes can be adjusted synchronously by rotating the rotating sleeve. Compared with the existing method of replacing and disassembling nozzles with different powder coke lengths to adjust the powder coke length, this application only needs to rotate the rotating sleeve to adjust the powder coke length, without the need for disassembly and replacement, which is convenient for adjustment operation. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of a cladding nozzle in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the disassembly structure of a cladding nozzle according to an embodiment of the present invention;

[0026] Figure 3 This is a cross-sectional view of a cladding nozzle according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the second body of a cladding nozzle in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of a rotating sleeve of a cladding nozzle according to an embodiment of the present invention.

[0029] Figure label:

[0030] 1-Main body; 11-First main body; 111-Shell; 112-Annular flange; 113-Guide groove; 12-Second main body; 121-Cooling cavity; 122-Water inlet connector; 123-Water outlet connector; 13-Laser channel; 14-Fastener;

[0031] 2-Rotating sleeve; 201-Annular groove; 202-Anti-slip texture; 3-Moving sleeve; 4-Powder feeding pipe; 5-Connector;

[0032] 6-Positioning components. Detailed Implementation

[0033] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0035] 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0036] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] like Figures 1-5 As shown in the figure, an embodiment of the present invention provides a cladding nozzle, comprising: a main body 1, a rotating sleeve 2, a moving sleeve 3, multiple powder feeding pipes 4, and multiple connecting parts 5.

[0039] The main body 1 has a laser channel 13 inside, which is used to pass laser light. The rotating sleeve 2 is rotatably connected to the main body 1 around its axis. The movable sleeve 3 is threadedly connected to the rotating sleeve 2 and is axially movable with the main body 1. The rotation of the rotating sleeve 2 drives the movable sleeve 3 to move axially relative to the main body 1. Multiple powder feeding pipes 4 are distributed at intervals around the outer wall of the main body 1. The axes of the outlets of the multiple powder feeding pipes 4 intersect at the same point on the extension line of the axis of the laser channel 13. The end of the powder feeding pipe 4 near the outlet is rotatably supported and connected to one end of the main body 1. One end of each connector 5 is rotatably connected to the end of a powder feeding pipe 4 away from the outlet. The other end of the connector 5 is rotatably connected to the movable sleeve 3. The connector 5 is used to drive the powder feeding pipe 4 to rotate around the end near the outlet.

[0040] In specific implementation, such as Figure 1 As shown, the operator moves the rotating sleeve 2, causing it to rotate around the main body 1. This rotation drives the moving sleeve 3 to move axially, simultaneously pulling the connecting piece 5. The connecting piece 5 drives the powder feeding tube 4 to rotate around one end of the main body 1. The rotation of the rotating sleeve 2 adjusts the powder feeding angle of the powder feeding tube 4, allowing powder to be fed into the tube. Powder is ejected along the axial direction of the outlet end of the powder feeding tube 4. Powder ejected from multiple powder feeding tubes 4 converges at the same point on the extension line of the laser channel 13 axis, forming a powder spot. The perpendicular distance between the powder spot and the outlet end of the powder feeding tube 4 along the axial direction of the laser channel 13 is the powder coke. When the powder feeding angle is large, i.e., the axis of the outlet of the powder feeding tube 4 is perpendicular to the laser... The larger the angle between the axes of channel 13, the shorter the powder coke length, and the smaller the powder spot formed at the same point on the extension line of the laser channel 13 axis. When the powder feeding angle is small, that is, the smaller the angle between the axis of the powder feeding tube 4 outlet and the axis of the laser channel 13, the longer the powder coke length, and the larger the powder spot formed at the same point on the extension line of the laser channel 13 axis. The powder feeding angle of multiple powder feeding tubes 4 can be synchronously adjusted by rotating the rotating sleeve 2. Compared with the existing method of replacing and disassembling nozzles with different powder coke lengths to adjust the powder coke length, this application only needs to rotate the rotating sleeve 2 to adjust the powder coke length, without the need for disassembly and replacement, which is convenient for adjustment operation.

[0041] like Figure 2 and Figure 4 As shown, specifically in this embodiment, the main body 1 includes: a first main body 11 and a second main body 12, the second main body 12 being coaxially connected to the first main body 11, and the first main body 11 and the second main body 12 being connected by fasteners 14. The first main body 11 and the second main body 12 can be fixedly connected as a whole by means of threaded connection, riveting, etc., to ensure the structural stability of the cladding device during operation.

[0042] As one possible approach, the first body 11 and the second body 12 are welded together, which ensures the structural stability of the cladding nozzle during operation and facilitates installation.

[0043] As another possible approach, the first main body 11 and the second main body 12 are integrated into a single structure, which makes it more convenient to manufacture the component structures and reduces the number of installation steps.

[0044] like Figure 4 As shown, specifically in this embodiment, the inner wall of the second main body 12 is provided with a cooling chamber 121, which is equipped with a water inlet connector 122 and a water outlet connector 123. The cooling chamber 121 is used to inject coolant. The operator introduces coolant into the cooling chamber 121 through the water inlet connector 122. When the cooling chamber 121 is full of coolant, it flows out through the water outlet connector 123. During the operation of the cladding nozzle, coolant is continuously introduced into the cooling chamber 121, forming a coolant circulation within the cooling chamber 121, increasing the cooling area, and physically cooling the cladding nozzle during laser cladding operations, thereby improving the powder feeding cooling effect of the cladding nozzle.

[0045] like Figure 2 and Figure 5 As shown, specifically in this embodiment, the inner wall of the rotating sleeve 2 is provided with an annular groove 201, and the outer wall of the first body 11 is provided with an annular flange 112. The annular flange 112 is engaged with the annular groove 201, and the rotating sleeve 2 rotates relative to the first body 11 around the axis of the rotating sleeve 2 through the engagement of the annular groove 201 and the annular flange 112. The rotating sleeve 2 is engaged with the annular flange 112 of the first body 11 through the annular groove 201. When the operator moves the rotating sleeve 2, the rotating sleeve 2 rotates around the axis of the first body 11 along the engagement area of ​​the annular groove 201 and the annular flange 112. The engagement area of ​​the annular groove 201 and the annular flange 112 can slide relative to each other, which makes it convenient for the operator to move the rotating sleeve 2 to adjust the powder feeding angle of the powder feeding tube 4. The operation is simple.

[0046] like Figure 1 and Figure 2As shown, specifically, in this embodiment, the main body 1 further includes a cover 111, which is disposed on the first main body 11. The rotating sleeve 2 is rotatably connected to the first main body 11 around the axis of the rotating sleeve 2. The cover 111 covers the outer wall of the rotating sleeve 2, and an operation hole is provided on the side wall of the cover 111. The operation hole is used to move the rotating sleeve 2 to rotate relative to the first main body 11 around the axis of the rotating sleeve 2 within the cover 111. The operator moves the rotating sleeve 2 exposed at the operating hole, causing the rotating sleeve 2 to rotate around the first main body 11 inside the cover 111. The rotation of the rotating sleeve 2 drives the moving sleeve 3 to move along the axis of the rotating sleeve 2. At the same time, the moving sleeve 3 pulls the connecting piece 5 to move. The connecting piece 5 drives the powder feeding pipe 4 to rotate around the end of the second main body 12 away from the first main body 11. The powder feeding angle of the powder feeding pipe 4 is adjusted by rotating the rotating sleeve 2. During laser cladding operations, the high temperature can easily damage the rotating sleeve 2. The structure of the operating hole on the side wall of the cover 111 makes it convenient for the operator to adjust the powder and coke while protecting the rotating sleeve 2 and extending its service life.

[0047] like Figure 2 and Figure 4 As shown, specifically in this embodiment, the end of the second body 12 furthest from the first body 11 is a conical structure, with a through hole at the top for laser transmission. One end of the powder feeding tube 4 is rotatably supported and connected to the end of the second body 12 near the through hole, while the other end of the powder feeding tube 4 is rotatably mounted on the movable sleeve 3. Multiple powder feeding tubes 4 are inclined and spaced apart around the outer wall of the second body 12. The conical structure increases the contact area between the second body 12 and the multiple powder feeding tubes 4, facilitating disassembly and installation.

[0048] like Figure 4As shown, specifically in this embodiment, the inner wall of the movable sleeve 3 is provided with a guide groove 113. The guide groove 113 is parallel to the axial direction of the movable sleeve 3. The cladding nozzle also includes a positioning component 6. One end of the positioning component 6 is fixedly connected to the first body 11, and the other end of the positioning component 6 is slidably engaged with the guide groove 113. The positioning component 6 is used to slide along the guide groove 113. When the operator moves the rotating sleeve 2 to rotate around the axis of the first body 11, the rotation of the rotating sleeve 2 drives the movable sleeve 3 to move. Since the movable sleeve 3 is provided with the positioning component 6, and the first body 11 is provided with a positioning hole, one end of the positioning component 6 passes through the positioning hole and is fixedly connected to the first body 11. The positioning component 6 is limited by the guide groove 113 and can only move along the axial direction of the first body 11. While the movable sleeve 3 moves, it pulls the connecting piece 5 to move. The connecting piece 5 drives the powder feeding pipe 4 to rotate around the end of the second body 12 away from the first body 11 by an angle, thereby completing the adjustment of the powder coke length and ensuring the structural stability when the cladding nozzle is adjusted. For example, the number of positioning components 6 can be 1, 2, 4, etc. There is no specific limit to the number of positioning components 6. The more positioning components 6 there are, the more stable the structure between the moving sleeve 3 and the first body 11 will be when the adjustment action is performed, reducing the relative misalignment between the moving sleeve 3 and the first body 11 in the radial direction, and ensuring the accuracy of the adjustment of the rotation angle of the powder feeding pipe 4.

[0049] like Figure 5 As shown, specifically in this embodiment, the outer wall of the rotating sleeve 2 is provided with anti-slip texture 202 to increase the friction between the hand and the rotating sleeve 2 when the rotating sleeve 2 is turned, making it easier to operate.

[0050] like Figure 1 , Figure 3 and Figure 4 As shown, specifically in this embodiment, the connector 5 can be a connecting piece or a connecting rod. There is no specific limitation on the connector 5. Both the connecting piece and the connecting rod provide good support and tension, ensuring the smoothness of the powder feeding tube 4 when the operator rotates the rotating sleeve 2. The length of the connector 5 can be 13mm, 14mm, 15mm, etc. There is no specific limitation on the length of the connector 5. The larger the length of the connector 5, the greater the range of variation in the angle between the axis of the powder feeding tube 4 outlet and the axis of the laser channel 13, which can increase the range of adjustment of the powder coke in the cladding nozzle.

[0051] Specifically, in this embodiment, the angle between the axis of the powder feeding tube 4 outlet and the axis of the laser channel 13 is 30° to 35°. When the rotating sleeve 2 is turned, the powder feeding tube 4 can rotate 5° around one end of the main body 1. For example, the angle between the axis of the powder feeding tube 4 outlet and the axis of the laser channel 13 can be 30°, 32°, 33°, 35°, etc. The angle between the axis of the powder feeding tube 4 outlet and the axis of the laser channel 13 is not specifically limited here. When the angle between the axis of the powder feeding tube 4 outlet and the axis of the laser channel 13 is 30° to 35°, the adjustable range of powder coke is 7mm to 11mm, and the variation range of powder spot size is 2mm to 5mm. When the required powder coke length for the cladding nozzle is relatively long, i.e., the powder feeding angle is relatively small in the working state, the angle between the axis of the powder feeding tube 4 outlet and the axis of the laser channel 13 is gradually reduced by rotating the sleeve 2. The powder spot formed by the cladding nozzle at the same point on the extension line of the laser channel 13 axis gradually increases. When the required powder coke length for the cladding nozzle is relatively short, i.e., the powder feeding angle is relatively large in the working state, the angle between the axis of the powder feeding tube 4 outlet and the axis of the laser channel 13 is gradually increased by rotating the sleeve 2 in the opposite direction. The powder spot formed by the cladding nozzle at the same point on the extension line of the laser channel 13 axis gradually decreases. By repeatedly rotating the sleeve 2 to adjust the powder feeding angle of the powder feeding tube 4 until the powder coke length and powder spot size meet the requirements, the rotation of the sleeve 2 is stopped, and the powder coke adjustment of the cladding nozzle is completed. This is easy to operate.

[0052] Meanwhile, the present invention provides a cladding device, comprising: a robotic arm, a laser generator, a laser head, a powder feeding pipe 4, a powder feeding mechanism, and a cladding nozzle, characterized in that the cladding nozzle is any of the cladding nozzles described above, the cladding nozzle, the laser generator, and the powder feeding mechanism are all disposed on the robotic arm, the laser generator is connected to the laser head, the laser head is connected to the main body 1, and the inlet of the powder feeding pipe 4 is connected to the powder feeding mechanism.

[0053] During operation, the laser generator transmits the generated laser to the laser head and through the laser channel 13 of the cladding nozzle. At the same time, the powder feeding mechanism feeds metal powder into the powder feeding pipe 4 and ejects it from the outlet end of the powder feeding pipe 4. After ejection, multiple powder feeding pipes 4 converge at the same point on the extended axis of the laser channel 13 to form a powder spot. When the operator performs the cladding process on workpieces of different shapes, it is necessary to change the powder coke of different lengths in the cladding nozzle. At this time, it is only necessary to adjust the cladding nozzle to achieve free adjustment of the powder coke length required by different processes, which improves the efficiency of laser cladding and the stability of the process, and ensures the quality of laser cladding.

[0054] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0055] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cladding nozzle, characterized in that, include: The main body has an internal laser channel for passing laser light; the main body includes a first main body and a second main body; the second main body is coaxially connected to the first main body; the first main body and the second main body are connected by fasteners, or the first main body and the second main body are welded together, or the first main body and the second main body are an integral structure. A rotating sleeve is rotatably connected to the main body about its axis; the inner wall of the rotating sleeve is provided with an annular groove, and the outer wall of the first main body is provided with an annular flange. The annular flange engages with the annular groove, and the rotating sleeve rotates relative to the first main body about its axis through the engagement of the annular groove and the annular flange. A movable sleeve is threadedly connected to the rotating sleeve. The movable sleeve is axially movable with the main body. The rotation of the rotating sleeve drives the movable sleeve to move axially relative to the main body. The inner wall of the movable sleeve is provided with a guide groove. The guide groove is parallel to the axial direction of the movable sleeve. The cladding nozzle also includes a positioning component. One end of the positioning component is fixedly connected to the first main body, and the other end of the positioning component is slidably engaged with the guide groove. The positioning component is used to slide along the guide groove. Multiple powder feeding tubes are distributed at intervals around the outer wall of the main body. The axes of the outlets of the multiple powder feeding tubes all intersect at the same point on the extension line of the axis of the laser channel. The end of the powder feeding tube near the outlet is rotatably supported and connected to one end of the main body. Multiple connectors are provided, one end of which is rotatably connected to the end of the powder feeding pipe away from the outlet, and the other end of which is rotatably connected to the movable sleeve. The connectors are used to drive the powder feeding pipe to rotate around the end closer to the outlet.

2. The cladding nozzle according to claim 1, characterized in that, The inner wall of the second main body is provided with a cooling cavity, which is provided with a water inlet connector and a water outlet connector, and is used to inject coolant.

3. The cladding nozzle according to claim 1, characterized in that, The main body also includes a cover, which is disposed on the first main body. The rotating sleeve is rotatably connected to the first main body about the axis of the rotating sleeve. The cover is disposed on the outer wall of the rotating sleeve, and the side wall of the cover is provided with an operation hole. The operation hole is used to move the rotating sleeve to rotate relative to the first main body about the axis of the rotating sleeve inside the cover.

4. The cladding nozzle according to claim 1, characterized in that, The end of the second body away from the first body is a conical structure, and the top of the conical structure is provided with a through hole for the laser to pass through.

5. The cladding nozzle according to claim 1, characterized in that, The outer wall of the rotating sleeve is provided with anti-slip texture.

6. The cladding nozzle according to claim 1, characterized in that, The angle between the axis of the powder feeding tube outlet and the axis of the laser channel is 30°~35°.

7. A cladding apparatus, comprising: A robotic arm, a laser generator, a laser head, a powder feeding pipe, a powder feeding mechanism, and a cladding nozzle, characterized in that the cladding nozzle is a cladding nozzle as described in any one of claims 1-6, the cladding nozzle, the laser generator, and the powder feeding mechanism are all disposed on the robotic arm, the laser generator is connected to the laser head, the laser head is connected to the main body, and the inlet of the powder feeding pipe is connected to the powder feeding mechanism.

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