Laser cladding nozzle

Abstract

The utility model is suitable for the technical field of laser cladding nozzles, and provides a laser cladding nozzle. A nozzle; the nozzle is movably mounted at the bottom of the spray head; the laser transmitting tube is fixedly mounted in the spray head; the laser transmitter is movably mounted at the top end of the laser transmitting tube; and the circulating cooling structure is arranged on the spray head, the nozzle and the laser transmitting tube and is used for circularly cooling the laser transmitting tube and the nozzle. Compared with the prior art, the beneficial effects of the utility model are that: when in use, the nozzle, the laser emission tube and the nozzle are provided with the circulating cooling structure, so that the nozzle and the bottom of the laser emission tube are cooled in a circulating manner, and the situation that the nozzle and the bottom of the laser emission tube are damaged due to long-time heating is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser cladding nozzles, in particular to a laser cladding nozzle. Background Art

[0002] Laser cladding, also known as laser cladding or laser cladding, is a new surface modification technology. It forms a metallurgically bonded cladding layer on the surface of the base material by adding cladding material to the surface of the base material and using a high-energy-density laser beam to melt it together with a thin layer on the surface of the base material.

[0003] During laser cladding, the laser emitted from the nozzle is used as the only heat source, and the heated substrate and metal powder that fall from the side are then clad. The laser emitted from the nozzle will generate a huge amount of heat. If used for a long time, it will cause melting and deformation at the outlet at the bottom of the nozzle, and then the laser will irradiate the material that has not fallen off, causing it to melt, and eventually causing the nozzle to become blocked.

[0004] Therefore, how to provide a laser cladding nozzle is a problem that technical personnel in this field need to solve urgently. Utility Model Content

[0005] The utility model aims to provide a laser cladding nozzle, aiming to solve the problems mentioned in the background technology.

[0006] The utility model is implemented as follows: a laser cladding nozzle comprises:

[0007] Sprinklers;

[0008] A nozzle, wherein the nozzle is movably mounted at the bottom of the nozzle;

[0009] A laser emitting tube, wherein the laser emitting tube is fixedly installed inside the nozzle;

[0010] A laser transmitter, wherein the laser transmitter is movably mounted on the top of the laser transmitting tube;

[0011] A circulating cooling structure is arranged on the nozzle, the nozzle and the laser emitting tube to cyclically cool the laser emitting tube and the nozzle.

[0012] Preferably, a circumferential array of bumps is provided on the surface of the nozzle, a spiral groove is provided at the bottom of the nozzle, a spiral ring plate is fixedly installed on the top of the nozzle, and the spiral ring plate is threadedly installed inside the spiral groove.

[0013] Preferably, the circulating cooling structure includes a first transition pipe, a second transition pipe and a drain pipe, a second bolt cooling pipe is opened inside the lower end of the nozzle, a first bolt cooling pipe is opened inside the lower end of the laser emitting tube, the first transition pipe is fixedly installed at the upper end of the left side of the nozzle, the right end of the first transition pipe is movably connected to the top of the left side of the first bolt cooling pipe, the second transition pipe is fixedly installed at the inner end of the right side of the second bolt cooling pipe, and is movably connected to the bottom of the right side of the first bolt cooling pipe, a water pump is fixedly installed at the left end of the nozzle, the drain pipe is fixedly installed at the bottom of the water pump, and is movably connected to the left side of the first transition pipe, a temporary storage ring plate is fixedly installed at the edge of the bottom of the nozzle, a water outlet is opened between the temporary storage ring plate and the second bolt cooling pipe, a return pipe is movably connected to the right side of the temporary storage ring plate, a circulating cooling pipe is movably sleeved on the surface of the nozzle, the top of the right end of the circulating cooling pipe is fixedly connected to the top of the return pipe, and the bottom of the left end of the circulating cooling pipe is fixedly connected to the water pump.

[0014] Preferably, a sealing ring is provided at a connection point between the first transition pipe and the first bolt cooling pipe and at a connection point between the second transition pipe and the first bolt cooling pipe.

[0015] Preferably, the diameter of the return pipe is smaller than the diameter of the circulating cooling pipe, and the diameter of the circulating cooling pipe is larger than the diameter of the drain pipe.

[0016] Preferably, openings are provided in the middle of the laser emitting tube and the bottom of the nozzle, and the positions of the openings on the upper and lower sides are arranged correspondingly.

[0017] Preferably, the diameters of the first bolt cooling pipe and the second bolt cooling pipe are the same, and the diameter of the second bolt cooling pipe is smaller than the diameter of the return pipe.

[0018] Compared with the prior art, the utility model has the following beneficial effects: when in use, by arranging a circulating cooling structure on the nozzle, the laser emitting tube and the nozzle, the nozzle and the bottom of the laser emitting tube are cooled reciprocatingly, thereby preventing them from being heated for a long time and causing melting.

[0019] At the same time, by setting the above-mentioned circulating cooling structure into a movable splicing structure, it is convenient to disassemble, and then under the action of the convex block set on the surface of the nozzle, the nozzle and the nozzle are separated, and the spiral ring plate at the top of the nozzle is rotated out of the spiral groove at the bottom of the nozzle, so that the nozzle is convenient to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 A schematic diagram of the overall appearance structure of a laser cladding nozzle provided in an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the front cross-sectional structure of a laser cladding nozzle provided in an embodiment of the utility model;

[0023] Figure 3 The embodiment of the utility model provides Figure 2 A schematic diagram of the enlarged structure of part A;

[0024] Figure 4 The embodiment of the utility model provides Figure 2 A schematic diagram of the enlarged structure of part B;

[0025] Figure 5 The embodiment of the utility model provides Figure 2 Schematic diagram of the enlarged structure of part C.

[0026] In the figure: 1-nozzle, 2-laser emitting tube, 3-laser emitter, 4-nozzle, 5-bump, 6-spiral groove, 7-spiral ring plate, 8-water pump, 9-drain pipe, 10-first transition pipe, 11-first bolt cooling pipe, 12-second transition pipe, 13-second bolt cooling pipe, 14-temporary storage ring plate, 15-drain port, 16-reflux pipe, 17-circulation cooling pipe, 18-opening. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 FIG. 1 is a schematic diagram of the structure of a laser cladding nozzle provided by an embodiment of the utility model, comprising:

[0030] Nozzle 1;

[0031] Nozzle 4, which is movably mounted at the bottom of the nozzle 1;

[0032] A laser emitting tube 2, which is fixedly installed inside the nozzle 1;

[0033] A laser emitter 3, which is movably mounted on the top of the laser emitting tube 2;

[0034] The circulating cooling structure is arranged on the nozzle 1, the nozzle 4 and the laser emitting tube 2 to circulate cooling for the laser emitting tube 2 and the nozzle 4.

[0035] In the embodiment of the utility model, when in use, the laser emitter 3 is started, so that the laser is emitted from the laser emission tube 2, and then emitted from the nozzle 4 at the bottom of the nozzle 1, and the material blown out from the nozzle 1 by the wind is melted, and at the same time, the circulating cooling structure is started to circulate and cool the laser emission tube 2 and the nozzle 4;

[0036] By arranging a circulating cooling structure on the nozzle 1, the laser emitting tube 2 and the nozzle 4, the nozzle 4 and the bottom of the laser emitting tube 2 are cooled reciprocatingly to avoid prolonged heating and thus preventing them from melting.

[0037] like Figure 1 , Figure 2 and Figure 4 As shown, a circumferential array of bumps 5 is provided on the surface of the nozzle 4 , a spiral groove 6 is provided at the bottom of the nozzle 1 , a spiral ring plate 7 is fixedly installed on the top of the nozzle 4 , and the spiral ring plate 7 is threadedly installed inside the spiral groove 6 .

[0038] In the embodiment of the utility model, when the nozzle 4 needs to be replaced, the nozzle 4 is driven to rotate by the protrusion 5 on its surface, so that the second bolt cooling pipe 13 and the first transition pipe 10 are separated from the first bolt cooling pipe 11, and the spiral ring plate 7 is rotated out of the spiral groove 6 at the bottom of the nozzle 1;

[0039] The protrusion 5 provided on the surface of the nozzle 4 facilitates the separation of the nozzle 4 from the nozzle head 1, and enables the spiral ring plate 7 on the top of the nozzle 4 to be rotated out of the spiral groove 6 at the bottom of the nozzle head 1, thereby facilitating the replacement of the nozzle 4.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, as a preferred embodiment of the utility model, the circulating cooling structure includes a first transition pipe 10, a second transition pipe 12 and a drain pipe 9, a second bolt cooling pipe 13 is opened inside the lower end of the nozzle 4, a first bolt cooling pipe 11 is opened inside the lower end of the laser emission tube 2, the first transition pipe 10 is fixedly installed at the upper end of the left side of the nozzle 4, the right end of the first transition pipe 10 is movably connected to the top of the left side of the first bolt cooling pipe 11, the second transition pipe 12 is fixedly installed at the inner end of the right side of the second bolt cooling pipe 13, and is connected to the bottom of the right side of the first bolt cooling pipe 11. The left end of the nozzle 1 is fixedly mounted with a water pump 8, the drain pipe 9 is fixedly mounted at the bottom of the water pump 8 and is movably connected to the left side of the first transition pipe 10, a temporary storage ring plate 14 is fixedly mounted on the edge of the bottom of the nozzle 4, a water outlet 15 is provided between the temporary storage ring plate 14 and the second bolt cooling pipe 13, a return pipe 16 is movably connected to the right side of the temporary storage ring plate 14, a circulating cooling pipe 17 is movably sleeved on the surface of the nozzle 1, the top of the right end of the circulating cooling pipe 17 is fixedly connected to the top of the return pipe 16, and the bottom of the left end of the circulating cooling pipe 17 is fixedly connected to the water pump 8.

[0041] In the embodiment of the utility model, when in use, the water pump 8 is started to pump the coolant in the circulating cooling pipe 17 into the drain pipe 9, and then enters the first bolt cooling pipe 11 at the bottom of the laser emission tube 2 through the first transition pipe 10 to cool it, and then the coolant is transmitted to the second bolt cooling pipe 13 inside the nozzle 4 through the second transition pipe 12 to cool the nozzle 4, and then enters the temporary storage ring plate 14 through the water outlet 15, and then enters the return pipe 16 on the right, and then flows back to the top of the circulating cooling pipe 17 for circulating cooling;

[0042] By setting up a circulating cooling structure, the coolant circulates back and forth to cool the nozzle 4 and the bottom of the laser emitting tube 2, thereby preventing the temperature from being too high for a long time and causing melting.

[0043] like Figure 3 As shown, as a preferred embodiment of the utility model, a sealing ring is provided at the connection between the first transition pipe 10 and the first bolt cooling pipe 11 and at the connection between the second transition pipe 12 and the first bolt cooling pipe 11.

[0044] In the embodiment of the utility model, when in use, sealing rings are provided at the connection between the first transition pipe 10 and the first bolt cooling pipe 11 and at the connection between the second transition pipe 12 and the first bolt cooling pipe 11, so as to avoid leakage of coolant when making connections.

[0045] like Figure 1 and Figure 2As shown, as a preferred embodiment of the present utility model, the diameter of the return pipe 16 is smaller than the diameter of the circulating cooling pipe 17 , and the diameter of the circulating cooling pipe 17 is larger than the diameter of the drain pipe 9 .

[0046] In the embodiment of the utility model, when in use, by making the diameter value of the return pipe 16 smaller than the diameter value of the circulating cooling pipe 17, the temperature of the coolant itself can be quickly reduced, and by making the diameter value of the circulating cooling pipe 17 larger than the diameter value of the drain pipe 9, sufficient coolant can be involved in the cooling work, thereby avoiding the occurrence of cavities.

[0047] like Figure 2 As shown, as a preferred embodiment of the utility model, an opening 18 is provided in the middle of the bottom of the laser emitting tube 2 and the nozzle 4, and the positions of the openings 18 on the upper and lower sides are arranged correspondingly.

[0048] In the embodiment of the utility model, when in use, openings 18 are provided in the middle of the laser emitting tube 2 and the bottom of the nozzle 4, and the positions of the openings 18 on the upper and lower sides are arranged correspondingly, so as to facilitate the emission of laser and the melting of the material.

[0049] like Figure 1 and Figure 2 As shown, as a preferred embodiment of the present invention, the diameters of the first bolt cooling pipe 11 and the second bolt cooling pipe 13 are the same, and the diameter of the second bolt cooling pipe 13 is smaller than the diameter of the return pipe 16 .

[0050] In an embodiment of the utility model, when in use, by making the diameters of the first bolt cooling tube 11 and the second bolt cooling tube 13 the same, and the diameter of the second bolt cooling tube 13 smaller than the diameter of the return tube 16, the residence time of the coolant is extended, thereby taking away more heat.

[0051] The above embodiment of the utility model provides a laser cladding nozzle. When in use, the laser emitter 3 is started so that the laser is emitted from the laser emission tube 2 and then emitted from the nozzle 4 at the bottom of the nozzle 1, and the material blown out from the nozzle 1 by the wind is melted;

[0052] When melting, the water pump 8 is started to pump the coolant in the circulating cooling pipe 17 into the drain pipe 9, and then enters the first bolt cooling pipe 11 at the bottom of the laser emitting tube 2 through the first transition pipe 10 to cool it. Then the coolant is transmitted to the second bolt cooling pipe 13 inside the nozzle 4 through the second transition pipe 12 to cool the nozzle 4. Then, it enters the temporary storage ring plate 14 through the water outlet 15, and then enters the return pipe 16 on the right, and then flows back to the top of the circulating cooling pipe 17 for circulating cooling, so that the coolant circulates back and forth to cool the nozzle 4 and the bottom of the laser emitting tube 2, thereby preventing the temperature from being too high for a long time and causing melting.

[0053] When the nozzle 4 needs to be replaced, the drain pipe 9 is separated from the first transition pipe 10, and then the return pipe 16 is separated from the temporary storage ring plate 14. The nozzle 4 is then driven to rotate by the protrusion 5 on its surface, and then the second bolt cooling pipe 13 and the first transition pipe 10 are separated from the first bolt cooling pipe 11, and the spiral ring plate 7 is rotated out of the spiral groove 6 at the bottom of the nozzle 1, so as to facilitate the replacement of the nozzle 4.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser cladding nozzle, characterized in that: include; Nozzle (1); A nozzle (4), wherein the nozzle (4) is movably mounted at the bottom of the nozzle (1); A laser emitting tube (2), wherein the laser emitting tube (2) is fixedly installed inside the nozzle (1); A laser emitter (3), wherein the laser emitter (3) is movably mounted on the top of the laser emitting tube (2); A circulating cooling structure is provided on the nozzle (1), the nozzle (4) and the laser emitting tube (2) to cyclically cool the laser emitting tube (2) and the nozzle (4).

2. A laser cladding nozzle according to claim 1, characterized in that: The surface of the nozzle (4) is provided with bumps (5) in a circular array, the bottom of the nozzle (1) is provided with a spiral groove (6), the top of the nozzle (4) is fixedly provided with a spiral ring plate (7), and the spiral ring plate (7) is threadedly installed inside the spiral groove (6).

3. The laser cladding nozzle according to claim 1, characterized in that: The circulating cooling structure comprises a first transition pipe (10), a second transition pipe (12) and a drain pipe (9); a second bolt cooling pipe (13) is provided inside the lower end of the nozzle (4); a first bolt cooling pipe (11) is provided inside the lower end of the laser emitting tube (2); the first transition pipe (10) is fixedly mounted on the upper end of the left side of the nozzle (4); the right end of the first transition pipe (10) is movably connected to the top of the left side of the first bolt cooling pipe (11); the second transition pipe (12) is fixedly mounted on the inner end of the right side of the second bolt cooling pipe (13) and is movably connected to the bottom of the right side of the first bolt cooling pipe (11); the left end of the nozzle (1) A water pump (8) is fixedly installed at the end, the drain pipe (9) is fixedly installed at the bottom of the water pump (8) and is movably connected to the left side of the first transition pipe (10), a temporary storage ring plate (14) is fixedly installed at the edge of the bottom of the nozzle (4), a water outlet (15) is provided between the temporary storage ring plate (14) and the second bolt cooling pipe (13), a return pipe (16) is movably connected to the right side of the temporary storage ring plate (14), a circulating cooling pipe (17) is movably sleeved on the surface of the nozzle (1), the top of the right end of the circulating cooling pipe (17) is fixedly connected to the top of the return pipe (16), and the bottom of the left end of the circulating cooling pipe (17) is fixedly connected to the water pump (8).

4. A laser cladding nozzle according to claim 3, characterized in that: A sealing ring is provided at the connection between the first transition pipe (10) and the first bolt cooling pipe (11) and at the connection between the second transition pipe (12) and the first bolt cooling pipe (11).

5. The laser cladding nozzle according to claim 3, characterized in that: The diameter of the return pipe (16) is smaller than the diameter of the circulating cooling pipe (17), and the diameter of the circulating cooling pipe (17) is larger than the diameter of the drain pipe (9).

6. The laser cladding nozzle according to claim 1, characterized in that: An opening (18) is provided in the middle of the bottom of the laser emitting tube (2) and the nozzle (4), and the positions of the openings (18) on the upper and lower sides are arranged correspondingly.

7. The laser cladding nozzle according to claim 3, characterized in that: The diameters of the first bolt cooling pipe (11) and the second bolt cooling pipe (13) are the same, and the diameter of the second bolt cooling pipe (13) is smaller than the diameter of the return pipe (16).

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