Laser cladding protection device

Abstract

The utility model is suitable for the technical field of laser cladding, and provides a laser cladding protection device. A nozzle; the protection structure is arranged on the surface of the nozzle; the protective structure comprises protective cover protruding blocks and an inner baffle, the protective cover is attached to the surface of the nozzle in a circumferential array mode, the protruding blocks are installed at the top of the outer side of the protective cover in a circumferential array mode, and a containing groove is formed in the protective cover. Compared with the prior art, the spray nozzle has the beneficial effects that when the spray nozzle is used, the protective structure is arranged on the spray nozzle, so that powder which is just sprayed out of the outlet and scattered all around is shielded and stored by the protective structure, the high-temperature powder is prevented from falling onto a working table to influence later cleaning, and the powder is prevented from being splashed onto nearby human bodies to cause damage to the human bodies. And meanwhile, the protective diameter of the protective structure can be adjusted according to the size of the nozzle, so that the protective structure is suitable for various nozzles with different diameters.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser cladding, and in particular relates to a laser cladding protection device. Background Art

[0002] Laser cladding technology is a process that uses laser to melt specific powder and clad the material on the surface of the workpiece. It is mainly divided into preset laser cladding and synchronous laser cladding.

[0003] In the laser cladding nozzle with patent number CN212505067U, a laser cladding nozzle is involved, including a nozzle body, a vertically penetrating laser channel is arranged in the center of the nozzle body, and a powder spray sleeve is detachably matched on the outer side of the nozzle body; an annular flange is arranged in the inner cavity of the powder spray sleeve, the upper part of the nozzle body is a boss structure, and the lower part is a nozzle structure, the boss structure is supported on the annular flange, the nozzle structure passes through the annular flange and forms a conical head at the lower end; a powder outlet channel is formed between the inner wall of the powder spray sleeve at the lower end of the annular flange and the inner wall of the nozzle structure, the top of the powder outlet channel is an annular gas-powder mixing chamber, and the bottom is a conical annular powder channel; the powder spray sleeve is provided with a powder spray interface connected to the gas-powder mixing chamber; a sealing ring is arranged between the top surface of the annular flange and the bottom surface of the boss structure. The laser cladding nozzle provided by the utility model has an annular gas-powder mixing chamber arranged in the powder outlet channel, so as to improve the mixing uniformity of the powder and reduce blockage;

[0004] Although the above-mentioned method can reduce blockage, since there is no protective structure, the powder will be melted by the high-temperature laser soon after being ejected. However, since the powder lacks restraint after being ejected, the powder that has not been completely melted at the lower edge will scatter around due to the influence of air resistance below, and then splash onto the workbench, making it difficult to clean up later. Moreover, when there are people nearby, the high-temperature semi-melted powder may splash onto the people nearby, causing burns, etc., posing a safety risk. Utility Model Content

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

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

[0007] nozzle;

[0008] A protective structure, wherein the protective structure is arranged on the surface of the nozzle;

[0009] The protective structure includes a protective cover protrusion and an inner baffle plate. The protective cover is arranged in a circular array on the surface of the nozzle. The protrusion circular array is installed on the top of the outer side of the protective cover. The interior of the protective cover is provided with a storage groove. The inner baffle plate is movably inserted in the interior of an adjacent storage groove. A first spring is arranged between adjacent inner baffle plates.

[0010] Preferably, a supporting structure is also provided at the bottom of the protective structure, and is movably attached to the surface of the nozzle. The supporting structure includes a first positioning plate, a second positioning plate and a second spring. The first positioning plate is installed in a circular array at the bottom of the top of the protective cover. The bottom of the first positioning plate is movably hinged with a hinge plate. The second positioning plate is movably hinged to the bottom of the hinge plate and is attached to the surface of the nozzle. The second spring is fixedly installed on the inner side of the bottom of the first positioning plate and is fixedly connected to the upper end of the outer side of the second positioning plate.

[0011] Preferably, the cross-sectional shape of the protective cover is set to be G-shaped, the inner end of the bottom of the protective cover is provided with a through hole, and the bottom of the nozzle is provided with an outlet, which is arranged corresponding to the through hole.

[0012] Preferably, the diameter of the through hole is greater than the diameter of the outlet, and the height of the top of the through hole is lower than the height of the bottom of the outlet.

[0013] Preferably, the protective cover and the inner baffle are each provided in four pieces, and each piece has the same shape and size, and the protective cover and the inner baffle are staggered and cross-arranged.

[0014] Preferably, the cross-sectional size of the inner baffle plate is the same as that of the receiving groove, and the curvature values ​​of the inner baffle plate and the receiving groove are the same.

[0015] Preferably, the curvature values ​​of the protective cover and the inner baffle are the same as the curvature value of the nozzle.

[0016] Compared with the prior art, the utility model has the following beneficial effects: when in use, by arranging a protective structure on the nozzle, the scattered powder just sprayed out from the outlet is shielded and stored by the protective structure, thereby preventing the high-temperature powder from falling onto the workbench and affecting the subsequent cleaning, and preventing the powder from splashing onto nearby people and causing burns. At the same time, since the protective diameter of the protective structure can be adjusted according to the size of the nozzle, it is suitable for nozzles of various different diameters.

[0017] At the same time, by setting up a supporting structure, the second positioning plate of the supporting structure is in contact with the surface of the nozzle when placed, and then under the action of the above-mentioned protective structure, sufficient friction is generated between the supporting structure and the nozzle, thereby providing sufficient supporting force to the protective structure without causing damage to the nozzle surface, thereby avoiding falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 A schematic diagram of the overall appearance structure of a laser cladding protection device provided in an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the front cross-sectional structure of a laser cladding protection device provided in an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of a top cross-sectional structure of a laser cladding protection device provided in an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of a bottom-up cross-sectional structure of a laser cladding protection device provided in an embodiment of the utility model;

[0023] Figure 5 The embodiment of the utility model provides Figure 2 Schematic diagram of the enlarged structure of part A.

[0024] In the figure: 1-nozzle, 2-protective cover, 3-storage groove, 4-inner baffle, 5-export, 6-through hole, 7-bump, 8-second spring, 9-first spring, 10-first positioning plate, 11-second positioning plate, 12-hinge plate. DETAILED DESCRIPTION

[0025] 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.

[0026] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0027] 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 protection device provided by an embodiment of the utility model, comprising:

[0028] Nozzle 1;

[0029] A protective structure, the protective structure is arranged on the surface of the nozzle 1;

[0030] The protective structure includes a protective cover 2, a protrusion 7 and an inner baffle 4. The protective cover 2 is arranged in a circular array on the surface of the nozzle 1, and the protrusion 7 is installed in a circular array on the top of the outer side of the protective cover 2. A storage groove 3 is opened inside the protective cover 2, and the inner baffle 4 is movably inserted into the inside of the adjacent storage groove 3. A first spring 9 is arranged between adjacent inner baffles 4.

[0031] In the embodiment of the utility model, when in use, the protective cover 2 is pulled open by the protrusion 7, so that the inner baffle 4 in the receiving groove 3 overcomes the elasticity of the first spring 9 and is then sleeved on the nozzle 1, and then the second positioning plate 11 is first contacted with the surface of the nozzle 1, and then the protrusion 7 is loosened, so that under the action of the second spring 8 and the first spring 9, the inner baffle 4 is brought together, and then the protective cover 2 is brought together and placed in contact with the surface of the nozzle 1, so as to block the outlet 5 at the bottom of the nozzle 1;

[0032] By providing a protective structure, the scattered powder just sprayed out from the outlet 5 is blocked and collected by the inner baffle plate 4 and the protective cover 2, so as to prevent the high-temperature powder from falling onto the workbench, making cleaning more difficult, and to prevent the powder from splashing onto nearby people and causing burns.

[0033] like Figure 2 and Figure 5 As shown, as a preferred embodiment of the utility model, a supporting structure is also provided at the bottom of the protective structure, and is movably attached to the surface of the nozzle 1, the supporting structure includes a first positioning plate 10, a second positioning plate 11 and a second spring 8, the first positioning plate 10 is installed in a circular array at the bottom of the top of the protective cover 2, the bottom of the first positioning plate 10 is movably hinged with a hinge plate 12, the second positioning plate 11 is movably hinged at the bottom of the hinge plate 12, and is arranged in contact with the surface of the nozzle 1, the second spring 8 is fixedly installed on the inner side of the bottom of the first positioning plate 10, and is fixedly connected to the upper end of the outer side of the second positioning plate 11.

[0034] In the embodiment of the utility model, when the protective cover 2 is closed, the hinge plate 12 hinged on the first positioning plate 10 at the bottom thereof will apply pressure to the second positioning plate 11, and at the same time, under the action of the second spring 8 and the first spring 9, the second positioning plate 11 and the top of the protective cover 2 are more closely attached to the surface of the nozzle 1, thereby reducing the possibility of falling off;

[0035] By providing the protective cover 2, as the amount of powder stored therein increases, a greater pressure is applied to the second positioning plate 11 through the hinge plate 12, thereby further improving the stability thereof.

[0036] like Figure 2As shown, as a preferred embodiment of the utility model, the cross-sectional shape of the protective cover 2 is set to be G-shaped, a through hole 6 is set at the inner end of the bottom of the protective cover 2, and an outlet 5 is opened at the bottom of the nozzle 1 and is arranged corresponding to the through hole 6.

[0037] In the embodiment of the utility model, when in use, the cross-sectional shape of the protective cover 2 is set to a G shape, thereby facilitating the collection of powder, and a through hole 6 is provided at the inner end of the bottom of the protective cover 2, and an outlet 5 is opened at the bottom of the nozzle 1 and arranged corresponding to the through hole 6, thereby facilitating the storage and dropping of powder.

[0038] like Figure 2 As shown, as a preferred embodiment of the present invention, the diameter of the through hole 6 is greater than the diameter of the outlet 5 , and the height of the top of the through hole 6 is lower than the height of the bottom of the outlet 5 .

[0039] In the embodiment of the utility model, when in use, the diameter of the through hole 6 is made larger than the diameter of the outlet 5, so as to facilitate the falling of the powder, and the height of the top of the through hole 6 is made lower than the height of the bottom of the outlet 5, so as to collect the scattered powder separately, and then reduce the difficulty of cleaning later.

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, as a preferred embodiment of the present utility model, the protective cover 2 and the inner baffle plate 4 are both provided in four pieces, and each piece has the same shape and size, and the protective cover 2 and the inner baffle plate 4 are staggered and cross-arranged.

[0041] In the embodiment of the utility model, when in use, by setting the protective cover 2 and the inner baffle plate 4 into four pieces, each of which has the same shape and size, and staggered and cross-arranged the protective cover 2 and the inner baffle plate 4, effective protection can still be provided during expansion to avoid the occurrence of larger leaks.

[0042] like Figure 2 , Figure 3 and Figure 4 As shown, as a preferred embodiment of the present utility model, the cross-sectional size of the inner baffle plate 4 is the same as the cross-sectional size of the receiving groove 3, and the curvature value of the inner baffle plate 4 and the receiving groove 3 is the same.

[0043] In the embodiment of the utility model, when in use, the inner baffle plate 4 is made to have the same cross-sectional size as the storage groove 3 and the same curvature value as the storage groove 3, thereby facilitating the movement of the inner baffle plate 4 in the storage groove 3.

[0044] like Figure 2 , Figure 3 and Figure 4As shown, as a preferred embodiment of the present utility model, the curvature values ​​of the protective cover 2 and the inner baffle 4 are the same as the curvature value of the nozzle 1.

[0045] In the embodiment of the utility model, when in use, the curvature values ​​of the protective cover 2 and the inner baffle 4 are made the same as the curvature value of the nozzle 1, so as to facilitate surface contact therewith, thereby reducing the downward gravity.

[0046] The above embodiment of the utility model provides a laser cladding protection device. When in use, the protective cover 2 is pulled open by the protrusion 7, so that the inner baffle 4 in the storage groove 3 overcomes the elasticity of the first spring 9 and is exposed, and then it is sleeved on the nozzle 1, and then the second positioning plate 11 is first contacted with the surface of the nozzle 1, and then the protrusion 7 is loosened, so that under the action of the second spring 8 and the first spring 9, the inner baffle 4 is brought together, and then the protective cover 2 is driven to be brought together and set close to the surface of the nozzle 1, so as to block the outlet 5 at the bottom of the nozzle 1, so that the powder just sprayed out from the outlet 5 is blocked and stored by the inner baffle 4 and the protective cover 2, so as to prevent the high-temperature powder from falling onto the workbench, which makes cleaning more difficult, and prevents the powder from splashing onto nearby people, causing burns.

[0047] Normal powder is melted onto the surface of the workpiece through the through hole 6 in the middle of the protective cover 2;

[0048] When the protective cover 2 is closed, the hinged plate 12 hinged on the first positioning plate 10 at the bottom will apply pressure to the second positioning plate 11. At the same time, under the action of the second spring 8 and the first spring 9, the second positioning plate 11 and the top of the protective cover 2 are more closely attached to the surface of the nozzle 1, reducing the possibility of falling. As the amount of stored powder increases, greater pressure will be applied to the second positioning plate 11 through the hinged plate 12, further improving its stability.

[0049] 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 protection device, characterized in that: include; Nozzle (1); A protective structure, the protective structure being arranged on the surface of the nozzle (1); The protective structure comprises a protective cover (2), a protrusion (7) and an inner baffle (4); the protective cover (2) is arranged in a circular array on the surface of the nozzle (1); the protrusion (7) is installed in a circular array on the top of the outer side of the protective cover (2); a receiving groove (3) is provided inside the protective cover (2); the inner baffle (4) is movably inserted into the inside of an adjacent receiving groove (3); and a first spring (9) is provided between adjacent inner baffles (4).

2. A laser cladding protection device according to claim 1, characterized in that: A supporting structure is also provided at the bottom of the protective structure and is movably attached to the surface of the nozzle (1). The supporting structure includes a first positioning plate (10), a second positioning plate (11) and a second spring (8). The first positioning plate (10) is installed in a circular array at the bottom of the top of the protective cover (2). The bottom of the first positioning plate (10) is movably hinged with a hinge plate (12). The second positioning plate (11) is movably hinged at the bottom of the hinge plate (12) and is attached to the surface of the nozzle (1). The second spring (8) is fixedly installed on the inner side of the bottom of the first positioning plate (10) and is fixedly connected to the upper end of the outer side of the second positioning plate (11).

3. The laser cladding protection device according to claim 1, characterized in that: The cross-sectional shape of the protective cover (2) is set to be G-shaped, the inner end of the bottom of the protective cover (2) is provided with a through hole (6), and the bottom of the nozzle (1) is provided with an outlet (5) which is arranged corresponding to the through hole (6).

4. A laser cladding protection device according to claim 3, characterized in that: The diameter of the through hole (6) is greater than the diameter of the outlet (5), and the height of the top of the through hole (6) is lower than the height of the bottom of the outlet (5).

5. The laser cladding protection device according to claim 1, characterized in that: The protective cover (2) and the inner baffle plate (4) are each provided in four pieces, and each piece has the same shape and size. The protective cover (2) and the inner baffle plate (4) are provided in a staggered and cross-arranged manner.

6. The laser cladding protection device according to claim 1, characterized in that: The cross-sectional size of the inner baffle plate (4) is the same as the cross-sectional size of the storage groove (3), and the curvature value of the inner baffle plate (4) and the storage groove (3) is the same.

7. The laser cladding protection device according to claim 1, characterized in that: The curvature values ​​of the protective cover (2) and the inner baffle (4) are the same as the curvature value of the nozzle (1).

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