CN215404525U - Annular laser cladding nozzle - Google Patents
Annular laser cladding nozzle Download PDFInfo
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- CN215404525U CN215404525U CN202121876743.7U CN202121876743U CN215404525U CN 215404525 U CN215404525 U CN 215404525U CN 202121876743 U CN202121876743 U CN 202121876743U CN 215404525 U CN215404525 U CN 215404525U
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Abstract
The utility model discloses an annular laser cladding nozzle, which comprises an inner core and an outer sleeve sleeved outside the inner core, wherein the center of the inner core is provided with a laser channel and an opening for laser ejection; a mixing chamber is arranged between the inner core and the outer sleeve, and a second conveying channel for outputting metal powder is arranged between the mixing chamber and the opening; the mixing chamber is communicated with first conveying channels for inputting metal powder, and the number of the first conveying channels is more than 1; the inner core is also provided with a groove facing the mixing chamber. The number of first transfer channels is preferably 2. The surface equidistance range of inner core has a plurality of recesses, when powder gas mixture gets into the compounding room, because the recess exists, leads to the powder constantly to strike the recess to form the cyclone, make the powder in the compounding room, make a round trip constantly to strike, thereby realize evenly sending the powder. In order to improve the mixing and powder feeding effect, the preferable scheme of the mixing chamber and the second conveying channel is a rotary structure which takes the central axis of the laser channel as the center; the grooves are arranged on the inner core in an annular array.
Description
Technical Field
The utility model belongs to the field of laser cladding, and particularly relates to an annular laser cladding nozzle.
Background
The laser cladding technology is a new surface modification technology, and the processing process is a technological method that external materials are added into a molten pool formed by a substrate after laser irradiation in a synchronous or material presetting mode, and the external materials and the molten pool are rapidly solidified together to form a coating layer.
In the application of laser processing technology, a laser nozzle is one of the most critical devices, and the uniformity of powder emitted from the nozzle largely determines the processing quality of the device. However, the existing laser cladding nozzle has the defects of complex processing procedure, complex operation, uneven powder feeding and the like.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the annular laser cladding nozzle which is reasonable in structural layout, simple to operate and uniform in powder feeding aiming at the current situation of the prior art.
The technical scheme adopted by the utility model for solving the technical problems is as follows: an annular laser cladding nozzle comprises an inner core and an outer sleeve sleeved outside the inner core, wherein the center of the inner core is provided with a laser channel and an opening for laser ejection; a mixing chamber is arranged between the inner core and the outer sleeve, and a second conveying channel for outputting metal powder is arranged between the mixing chamber and the opening; the mixing chamber is communicated with first conveying channels for inputting metal powder, and the number of the first conveying channels is more than 1; the inner core is also provided with a groove facing the mixing chamber.
In order to optimize the technical scheme, the adopted measures further comprise:
the mixing chamber and the second conveying channel are respectively of a rotary structure taking a central axis of the laser channel as a center; the grooves are arranged on the inner core in an annular array.
The first conveying channel is positioned on the outer sleeve and is positioned opposite to the groove.
The inner core is provided with a slope surface facing the first conveying channel, and the second conveying channel is arranged at the end of the slope surface.
An arc recess is also arranged between the groove and the slope surface.
The incident angle of the first conveying channel is inclined towards the arc concave direction.
The shape of the second conveying channel on the section of the central axis of the inner core is a tapered shape, and the tapered direction is from the mixing chamber to the opening; the groove is long-strip-shaped, and the end part of the groove faces the direction of the slope surface.
The jacket is provided with an annular cooling liquid flow passage, and is also provided with a liquid injection port and a liquid discharge port.
The inner core is provided with a ring protrusion which is pressed against the tail end of the outer sleeve; the cooling liquid flow channel is positioned between the first conveying channel and the annular protrusion, the tail end of the jacket is provided with a processing groove in an open mode, and the processing groove is communicated with the cooling liquid flow channel and positioned between the cooling liquid flow channel and the annular protrusion; the processing tank is plugged with a first sealing element.
The outer sleeve is split and comprises a channel part and a conical head part which are sequentially butted from the tail end to the front end, and a concave-convex matching structure and a second sealing element are arranged between the channel part and the conical head part; the external thread of the channel part is provided with an outer ring fixing sleeve in a rotating mode, the conical head part is provided with a first step surface deviating from the channel part, and the outer ring fixing sleeve is provided with a second step surface which is propped against the first step surface in the direction.
Compared with the prior art, the annular laser cladding nozzle comprises an inner core and an outer sleeve sleeved outside the inner core, wherein the center of the inner core is provided with a laser channel and an opening for laser ejection; a mixing chamber is arranged between the inner core and the outer sleeve, and a second conveying channel for outputting metal powder is arranged between the mixing chamber and the opening; the mixing chamber is communicated with first conveying channels for inputting metal powder, and the number of the first conveying channels is more than 1; the inner core is also provided with a groove facing the mixing chamber. The number of first transfer channels is preferably 2. The surface equidistance range of inner core has a plurality of recesses, when powder gas mixture gets into the compounding room, because the recess exists, leads to the powder constantly to strike the recess to form the cyclone, make the powder in the compounding room, make a round trip constantly to strike, thereby realize evenly sending the powder.
In order to improve the mixing and powder feeding effect, the preferable scheme of the mixing chamber and the second conveying channel is a rotary structure which takes the central axis of the laser channel as the center; the grooves are arranged on the inner core in an annular array.
The slope surface can prevent the metal powder in the mixing chamber from accumulating at the joint of the two in the process of entering the second conveying channel.
The incident angle of the first conveying channel is inclined towards the arc-shaped sunken direction, so that the cyclone in the mixing chamber can be pushed to move towards the second conveying channel.
The coolant flow channel can cool the nozzle.
The processing tank can conveniently process the cooling liquid flow channel from the tail end of the jacket.
The split structure of the outer sleeve is convenient for processing the complex inner walls of the mixing chamber and the second conveying channel.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an exploded schematic view of the drawing;
FIG. 3 is a schematic view in full section of FIG. 1 along a central axis;
FIG. 4 is an exploded schematic view of FIG. 3;
FIG. 5 is a front view of FIG. 3;
FIG. 6 is an exploded schematic view of FIG. 5;
fig. 7 is an exploded view of the outer cover of fig. 6.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 7 are schematic structural views of the present invention.
Wherein the reference numerals are: the device comprises an inner core 1, an outer sleeve 2, a laser channel 11, an opening 111, a mixing chamber 3, a second conveying channel 4, a first conveying channel 31, a groove 12, a slope surface 14, an arc recess 13, a cooling liquid flow channel 212, a liquid injection port 211, a liquid discharge port 213, an annular protrusion 15, a processing groove 214, a first sealing element 5, a channel part 21, a conical head part 22, a concave-convex matching structure 61, a second sealing element 62, an outer ring fixing sleeve 23, a first step surface 221 and a second step surface 231.
Fig. 1 to 7 are schematic structural diagrams of the present invention, in which the "tail end" refers to an end in the same direction as the laser source, and the "front end" refers to an end close to the workpiece.
As shown in fig. 1 to 7, the annular laser cladding nozzle of the present invention includes an inner core 1 and an outer sleeve 2 sleeved outside the inner core 1, wherein a laser channel 11 is disposed in the center of the inner core 1, and an opening 111 for laser emission is disposed; a mixing chamber 3 is arranged between the inner core 1 and the outer sleeve 2, and a second conveying channel 4 for outputting metal powder is arranged between the mixing chamber 3 and the opening 111; the mixing chamber 3 is communicated with first conveying channels 31 for inputting metal powder, and the number of the first conveying channels 31 is more than 1; the core 1 is further provided with a recess 12 facing the mixing chamber 3, as shown in fig. 2.
In the embodiment, as shown in fig. 3 and 5, the mixing chamber 3 and the second conveying passage 4 are respectively a rotary structure with a central axis of the laser passage 11 as a center; as shown in fig. 2, the grooves 12 are provided in an annular array in the inner core 1.
In the embodiment shown in figures 3 and 5, the first conveying channel 31 is located on the jacket 2 in a position opposite the recess 12.
In the embodiment shown in fig. 3 to 6, the core 1 is provided with a slope 14 facing the first transfer passage 31, and the second transfer passage 4 is provided at the end of the slope 14.
In the embodiment, as shown in fig. 3 to 6, an arc recess 13 is further provided between the groove 12 and the slope surface 14.
In the embodiment, as shown in fig. 3 to 6, the incident angle of the first conveying passage 31 is inclined toward the arc recess 13.
In the embodiment, as shown in fig. 3 and 5, the second conveying passage 4 has a tapered shape in a section of the central axis of the core 1, and the tapered direction is from the mixing chamber 3 to the opening 111; the recess 12 is elongated and has an end facing the ramp surface 14.
In the embodiment, as shown in fig. 3, 5 and 6, the jacket 2 is provided with an annular coolant flow passage 212, and further provided with a liquid inlet 211 and a liquid outlet 213.
In an embodiment, as shown in fig. 1 to 6, the inner core 1 is provided with a ring protrusion 15 which is pressed against the tail end of the outer sleeve 2; as shown in fig. 3 to 6, the cooling liquid channel 212 is located between the first conveying channel 31 and the annular protrusion 15, the opening 111 at the tail end of the jacket 2 is provided with a processing groove 214, and the processing groove 214 is communicated with the cooling liquid channel 212 and is located between the cooling liquid channel 212 and the annular protrusion 15; the processing tank 214 is filled with a first seal 5.
In the embodiment, as shown in fig. 3 to 7, the outer sleeve 2 is a split type, and includes a channel member 21 and a conical head member 22 which are sequentially butted from the tail end to the front end, and a concave-convex matching structure 61 and a second sealing member 62 are arranged between the channel member 21 and the conical head member 22; the external thread of the channel part 21 is screwed with an outer ring fixing sleeve 23, the conical head part 22 is provided with a first step surface 221 departing from the channel part 21, and the outer ring fixing sleeve 23 is provided with a second step surface 231 which is propped against the first step surface 221.
The working principle of the embodiment is as follows:
laser is ejected from the opening 111 through the laser channel 11 to melt the surface of the metal to be processed, meanwhile, metal powder enters the mixing chamber 3 from the first conveying channel 31, a plurality of grooves 12 are arranged on the surface of the inner core 1 at equal intervals, when powder gas is mixed and enters the mixing chamber 3, the grooves 12 are continuously impacted by the powder due to the existence of the grooves 12, cyclone is formed, the powder is continuously impacted back and forth in the mixing chamber 3, and therefore the metal in the mixing chamber 3 forms uniform gas mixture; and then the metal gas mixture in the mixing chamber 3 is conveyed to the opening 111 through the second conveying channel 4 to cover the surface of the melted metal to be processed, so that the laser cladding processing technology is realized.
While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the utility model.
Claims (10)
1. The annular laser cladding nozzle is characterized in that: the laser device comprises an inner core (1) and an outer sleeve (2) sleeved outside the inner core (1), wherein a laser channel (11) is arranged in the center of the inner core (1), and an opening (111) for laser to emit is formed in the center of the inner core; a mixing chamber (3) is arranged between the inner core (1) and the outer sleeve (2), and a second conveying channel (4) for outputting metal powder is arranged between the mixing chamber (3) and the opening (111); the mixing chamber (3) is communicated with first conveying channels (31) for inputting metal powder, and the number of the first conveying channels (31) is more than 1; the inner core (1) is also provided with a groove (12) facing the mixing chamber (3).
2. The annular laser cladding nozzle of claim 1, wherein: the mixing chamber (3) and the second conveying channel (4) are respectively of a rotary structure taking the central axis of the laser channel (11) as the center; the grooves (12) are arranged on the inner core (1) in an annular array.
3. The annular laser cladding nozzle of claim 2, wherein: the first conveying channel (31) is positioned on the outer sleeve (2) and is opposite to the groove (12).
4. The annular laser cladding nozzle of claim 3, wherein: the inner core (1) is provided with a slope surface (14) facing the first conveying channel (31), and the second conveying channel (4) is arranged at the end of the slope surface (14).
5. The annular laser cladding nozzle of claim 4, wherein: an arc recess (13) is also arranged between the groove (12) and the slope surface (14).
6. The annular laser cladding nozzle of claim 5, wherein: the incident angle of the first conveying channel (31) is inclined towards the direction of the arc recess (13).
7. The annular laser cladding nozzle of claim 6, wherein: the second conveying channel (4) is in a tapered shape on the section of the central axis of the inner core (1), and the tapered direction is from the mixing chamber (3) to the opening (111); the groove (12) is in a long strip shape.
8. The annular laser cladding nozzle of any one of claims 1 to 7, wherein: the jacket (2) is provided with an annular cooling liquid flow channel (212), and is also provided with a liquid injection port (211) and a liquid discharge port (213).
9. The annular laser cladding nozzle of claim 8, wherein: the inner core (1) is provided with a ring protrusion (15) which is pressed against the tail end of the outer sleeve (2); the cooling liquid flow channel (212) is positioned between the first conveying channel (31) and the annular protrusion (15), a processing groove (214) is arranged at the opening (111) at the tail end of the outer sleeve (2), and the processing groove (214) is communicated with the cooling liquid flow channel (212) and positioned between the cooling liquid flow channel (212) and the annular protrusion (15); the processing groove (214) is internally plugged with a first sealing element (5).
10. The annular laser cladding nozzle of claim 9, wherein: the jacket (2) is split and comprises a channel component (21) and a conical head component (22) which are sequentially butted from the tail end to the front end, and a concave-convex matching structure (61) and a second sealing element (62) are arranged between the channel component (21) and the conical head component (22); the external thread of the channel part (21) is screwed with an outer ring fixing sleeve (23), the cone head part (22) is provided with a first step surface (221) deviating from the channel part (21), and the outer ring fixing sleeve (23) is provided with a second step surface (231) which is propped against the first step surface (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121876743.7U CN215404525U (en) | 2021-08-12 | 2021-08-12 | Annular laser cladding nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121876743.7U CN215404525U (en) | 2021-08-12 | 2021-08-12 | Annular laser cladding nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN215404525U true CN215404525U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121876743.7U Active CN215404525U (en) | 2021-08-12 | 2021-08-12 | Annular laser cladding nozzle |
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| CN (1) | CN215404525U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481507A (en) * | 2021-08-12 | 2021-10-08 | 宁波图盛激光科技有限公司 | Annular laser cladding nozzle |
| CN115323371A (en) * | 2022-08-26 | 2022-11-11 | 山东拓普液压气动有限公司 | Underwater local dry laser cladding nozzle |
-
2021
- 2021-08-12 CN CN202121876743.7U patent/CN215404525U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481507A (en) * | 2021-08-12 | 2021-10-08 | 宁波图盛激光科技有限公司 | Annular laser cladding nozzle |
| CN115323371A (en) * | 2022-08-26 | 2022-11-11 | 山东拓普液压气动有限公司 | Underwater local dry laser cladding nozzle |
| CN115323371B (en) * | 2022-08-26 | 2024-03-12 | 山东拓普液压气动有限公司 | Underwater local dry method laser cladding nozzle |
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| GR01 | Patent grant | ||
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Address after: Floor 1, Building 4, No. 102, West Section of Hongtang South Road, Jiangbei District, Ningbo City, Zhejiang Province, 315000 Patentee after: Ningbo Haitian Laser Technology Co.,Ltd. Address before: Room b333, building 7, 199 Changxing Road, Jiangbei District, Ningbo City, Zhejiang Province, 315000 Patentee before: Ningbo Tusheng Laser Technology Co.,Ltd. |