CN113061888A - Assembled three-layer airflow traveling protection laser cladding working head - Google Patents
Assembled three-layer airflow traveling protection laser cladding working head Download PDFInfo
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- CN113061888A CN113061888A CN202110394067.8A CN202110394067A CN113061888A CN 113061888 A CN113061888 A CN 113061888A CN 202110394067 A CN202110394067 A CN 202110394067A CN 113061888 A CN113061888 A CN 113061888A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
Abstract
The invention provides an assembled three-layer airflow traveling protection laser cladding working head, which comprises: the lens barrel comprises a light-transmitting piece, a powder feeding piece, an inner layer protective gas cover, a middle layer protective gas cover, an outer layer protective gas cover and a lens barrel connecting piece, wherein the inner layer protective gas cover, the middle layer protective gas cover and the outer layer protective gas cover are coaxially embedded and arranged outside the side wall of the powder feeding piece; the powder feeding piece is sleeved outside the side wall of the light-transmitting piece; the lens cone connecting piece is provided with a first circulating cooling water flow channel for radiating heat of the light-transmitting piece; the powder feeding piece is provided with a powder inlet communicated with the powder outlet and a second circulating cooling water flow channel, and the second circulating cooling water flow channel flows through the side wall of the light-transmitting piece and is used for dissipating heat of the powder feeding piece and the light-transmitting piece; the lens cone connecting piece and the light passing piece are correspondingly provided with a lens cone protective air passage for blowing air into the light passing piece to prevent powder from entering the inside of the lens cone. The laser cladding working head can effectively protect the high-temperature area of the cladding layer in the laser cladding forming process of the nonferrous metal, reduce the contact of the cladding layer and oxygen and improve the surface quality of the cladding layer.
Description
Technical Field
The invention relates to the field of laser processing, in particular to laser cladding.
Background
In the process of laser cladding forming of nonferrous metals, the nonferrous metals can be combined with a matrix to obtain a better metallurgical effect only when the cladding condition needs to be changed into a molten state, and the high temperature is required in the cladding process, but the high-temperature oxidation behavior of the cladding layer on the surface of the cladding layer is inevitable when the laser cladding is carried out in an atmospheric environment. In the laser cladding forming process, when cladding layers are stacked, the oxide layer on the surface of each cladding layer can influence the laser cladding forming quality, for example, when the oxide layer on the surface of the cladding layer is combined with the next cladding layer, cracks can appear at the joint of the cladding layer and the oxide layer due to continuous accumulation of cladding temperature, so that the bonding strength of a formed part is reduced. With the continuous progress of laser cladding forming, the temperature of the cladding layer is accumulated continuously, so that the surface oxidation behavior of the cladding layer is increased continuously, a loose and porous oxide layer is formed on the surface of the cladding layer, oxygen elements in the air are promoted to enter the cladding layer continuously, the content of the oxygen elements in the cladding layer is caused to be too high, and the performance of the cladding layer is reduced.
In the laser cladding process, the oxide metal is mainly tightly combined with an oxygen-enriched layer without scale shedding, which shows that the oxide metal has strong adhesion and is difficult to remove in a mechanical mode in the actual production process. Cracks are found in both the oxide skin and the oxygen-rich layer, and the cracks can be expanded from the unseeded oxide skin to the oxygen-rich layer and can also appear in the oxygen-rich layer independently. The brittle oxygen-rich layer formed during the heating process is tightly bonded with the metal substrate, and surface cracks may occur on the processed material during the subsequent hot working process, which seriously affects the surface quality and reduces the yield of the material.
At present, the traditional laser cladding process is mainly protected by placing the laser cladding process in an inert gas environment, so that oxygen in the air can be isolated to avoid the oxidation behavior of a cladding layer in the cladding process, but a closed cavity is designed and inert gas is introduced, so that the design cost of the closed cavity is high, and the design difficulty is high; the use amount of the inert gas is larger by introducing the inert gas to isolate air.
Disclosure of Invention
In order to solve the problems, the invention provides an assembled three-layer airflow traveling protection laser cladding working head which can effectively protect a high-temperature area of a cladding layer in the laser cladding forming process of nonferrous metals, so that the contact between the cladding layer in the high-temperature area and oxygen is reduced, the oxidation behavior of the cladding layer is reduced, the surface quality of the cladding layer is improved, and the assembled three-layer airflow traveling protection laser cladding working head is better used and is better formed by laser cladding.
In order to solve the technical problem, the invention provides an assembly type three-layer airflow traveling protection laser cladding working head, which comprises: the lens barrel comprises a light-transmitting piece, a powder feeding piece, an inner layer protective gas cover, a middle layer protective gas cover, an outer layer protective gas cover and a lens barrel connecting piece, wherein the inner layer protective gas cover, the middle layer protective gas cover and the outer layer protective gas cover are coaxially embedded and arranged outside the side wall of the powder feeding piece; the powder feeding piece is sleeved outside the side wall of the light-transmitting piece;
the lens cone connecting piece is provided with a first circulating cooling water flow channel for radiating the light-transmitting piece; the powder feeding piece is provided with a powder inlet communicated with the powder outlet and a second circulating cooling water flow channel, and the second circulating cooling water flow channel flows through the side wall of the light-transmitting piece and is used for dissipating heat of the powder feeding piece and the light-transmitting piece;
the lens cone connecting piece and the light passing piece are correspondingly provided with a lens cone protective air passage for blowing air into the light passing piece so as to prevent powder from entering the inside of the lens cone.
In a preferred embodiment: the side wall of the light-transmitting piece extends outwards along the radial direction to form a first limiting block, and the end surface of the lens cone connecting piece extends inwards along the radial direction to form a first limiting matching block; the limiting block and the limiting matching block are in limiting matching along the direction of inserting the light-transmitting piece into the lens cone connecting piece;
the inner wall of the lens cone connecting piece extends inwards along the radial direction above the first limit matching block to form a second limit matching block; one part of the light-transmitting piece pressing block is inserted into the end face of the light-transmitting piece, the other part of the light-transmitting piece pressing block extends outwards along the radial direction to form a second limiting block, and the second limiting block is in limiting fit with the second limiting matching block in the direction opposite to the direction in which the light-transmitting piece is inserted into the lens barrel connecting piece.
In a preferred embodiment: the side wall of the light-transmitting piece extends outwards along the radial direction to form a circle of boss, and the boss and the powder feeding piece are fixed through four countersunk head bolts; an upper sealing ring and a lower sealing ring are arranged between the light-transmitting piece and the powder feeding piece; and a water cooling cavity of the second circulating cold water cooling channel is formed between the upper sealing ring and the lower sealing ring.
In a preferred embodiment: the powder feeding piece 6 is prepared by adopting SLM metal printing and secondary cutting processing.
In a preferred embodiment: the inner layer protective gas cover is assembled on the powder feeding piece, the middle layer protective gas cover is assembled on the inner layer protective gas cover, and the outer layer protective gas cover is assembled on the middle layer protective gas cover.
In a preferred embodiment: the inward inclination angle of the inner layer protection air channel of the inner layer protection air cover is 23 degrees, and the inner layer protection air channel is used for restraining the cladding layer powder output from the powder feeding piece.
In a preferred embodiment: the middle layer protective air passage of the middle layer protective air cover is vertical to the basal body so as to form a turbulent layer with the thickness of 8mm and the diameter of 52mm between the basal body and the working head.
In a preferred embodiment: an outer layer protective air channel of the outer layer protective air cover forms a 45-degree deflection angle outwards so as to form rotary airflow away from a cladding area, and therefore the temperature gradient of the matrix is reduced.
In a preferred embodiment: the inner layer protection gas hood and the powder feeding piece are positioned by coaxiality and shaft shoulders; the middle layer protective gas cover and the inner layer protective gas cover are positioned through coaxiality and shaft shoulders; the outer layer protective gas cover and the middle layer protective gas cover are positioned coaxially and by shaft shoulders.
In a preferred embodiment: the lens cone connecting piece is provided with an air inlet, the light-passing piece is provided with an air passage and an air outlet so as to form the lens cone protective air passage, and the lens cone connecting piece and the light-passing piece are respectively in sealing connection at the upper side and the lower side of the lens cone protective air passage through sealing pieces.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the invention provides an assembled three-layer airflow traveling protection laser cladding working head, which can protect a high-temperature area which is easy to oxidize when non-ferrous metal is laser clad, because non-ferrous metal is easy to oxidize with oxygen in the air along with the continuous accumulation of temperature in the laser cladding forming process, so that the quality of the cladding surface is reduced.
2. The invention provides an assembled three-layer airflow traveling protection laser cladding working head, which aims at solving the problems that an SLM metal forming mode is adopted for complex parts and then secondary cutting is carried out, and other rotary parts adopt a metal cutting mode; the light-transmitting element uses red copper parts with higher melting point and heat dissipation performance when different materials are used for different parts.
3. The invention provides an assembled three-layer airflow traveling protection laser cladding working head, wherein a circulating water cooling system is added between a light-transmitting piece and a powder feeding piece, so that the influence on the continuity of powder feeding along with the continuous accumulation of temperature in the laser cladding forming process can be effectively prevented.
4. The invention provides an assembly type three-layer airflow traveling protection laser cladding working head, wherein an assembly scheme is used for a three-layer airflow traveling protection device. The inward inclination angle of the inner layer protective gas cover is 23 degrees, so that powder sent out by the powder feeding part can be effectively restrained; the middle layer protective gas hood is vertical to the matrix, and a turbulent layer with the diameter of 52mm and the thickness of 8mm can be formed between the powder feeding head and the matrix, so that the cladding layer is effectively protected; the outward inclination angle of the outer layer protective gas cover is 45 degrees, so that a swirling airflow can be formed on the surface far away from the substrate to reduce the temperature of the substrate, and the heat dissipation rate is improved.
5. The invention provides an assembled three-layer airflow traveling protection laser cladding working head, which has less gas usage amount and lower processing cost under the environment of filling other closed vacuum chambers or inert gases, has lower requirements on the shape and the size of a workpiece, and also has lower requirements on the environment.
6. The invention provides an assembled three-layer airflow traveling protection laser cladding working head, which has lower cost and wider application range compared with other types of static laser cladding protection.
Drawings
FIG. 1 is a schematic view of an assembled three-layer airflow traveling protection laser cladding working head according to the present invention;
FIG. 2 is a cross-sectional view of the assembled three-layer airflow traveling protection laser cladding working head of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like, are used in a broad sense, and for example, "connected" may be a wall-mounted connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention specifically.
Referring to fig. 1 and fig. 2, the present embodiment provides an assembly type three-layer airflow traveling protection laser cladding working head, including: the device comprises a light-transmitting piece 8, a powder feeding piece 6, an inner layer protective gas cover 2, a middle layer protective gas cover 3, an outer layer protective gas cover 5 and a lens cone connecting piece 14, wherein the inner layer protective gas cover, the middle layer protective gas cover and the outer layer protective gas cover are coaxially embedded and arranged outside the side wall of the powder feeding piece; the powder feeding piece 6 is sleeved outside the side wall of the light-transmitting piece 8;
the lens cone connecting piece 14 is provided with a first circulating cooling water flow channel for radiating heat of the light-transmitting piece 8; the powder feeding part 6 is provided with a powder inlet 18 communicated with the powder outlet and a second circulating cooling water flow channel, and the second circulating cooling water flow channel flows through the side wall of the light-transmitting part 8 and is used for dissipating heat of the powder feeding part 6 and the light-transmitting part 8;
the lens cone connecting piece 14 and the light-passing piece 8 are correspondingly provided with a lens cone protective air passage for blowing air into the light-passing piece so as to prevent powder from entering the inside of the lens cone.
Specifically, the side wall of the light-transmitting member 8 extends outwards along the radial direction to form a circle of boss, and the boss and the powder feeding member 6 are fixed through four countersunk bolts; a powder feeding part water-cooling lower O-shaped ring 4 and a powder feeding part water-cooling upper O-shaped ring 7 are arranged between the light-transmitting part 8 and the powder feeding part 6; and a water-cooling cavity 19 of the second circulating cold water cooling flow channel is formed between the powder feeding part water-cooling lower O-shaped ring 4 and the powder feeding water-cooling upper O-shaped ring 7. The second circulating cold water cooling channel also comprises a powder feeding water cooling water outlet 26 and a powder feeding water cooling water inlet 24.
The side wall of the light-transmitting part 8 extends outwards along the radial direction to form a first limiting block, and the end surface of the lens cone connecting part 14 extends inwards along the radial direction to form a first limiting matching block; the limiting block and the limiting matching block are in limiting matching along the direction that the light-transmitting piece 8 is inserted into the lens cone connecting piece 14;
the inner wall of the lens cone connecting piece 14 extends inwards along the radial direction above the first limit matching block to form a second limit matching block; one part of the light-transmitting piece pressing block 13 is inserted into the end face of the light-transmitting piece, the other part of the light-transmitting piece pressing block extends outwards along the radial direction to form a second limiting block, and the second limiting block and the second limiting matching block are in limiting matching in the direction opposite to the direction in which the light-transmitting piece 8 is inserted into the lens barrel connecting piece 14.
The inner layer protective gas hood 5 and the powder feeding piece 6 are positioned by coaxiality and shaft shoulders, and are fixed on the powder feeding piece 6 through four fastening bolts M2 on the side surface of the inner layer protective gas hood 5; the middle layer protective gas cover 3 and the inner layer protective gas cover 4 are positioned through coaxiality and shaft shoulders, and the position of the middle layer protective gas cover 3 is fixed on the outer layer of the middle layer protective gas channel 3 by using four fastening bolts M2; the outer layer protection gas hood 2 and the middle layer protection gas hood 3 are positioned coaxially and through shaft shoulders, and the position of the outer layer protection gas hood 2 is fixed on the side wall of the outer layer protection gas hood 2 through four fastening bolts M2.
The lens cone connecting piece 14 is provided with a lens cone protective gas inlet 23, the light-passing piece 8 is provided with an air passage 15 and an air outlet to form the lens cone protective air passage, and the lens cone connecting piece 14 and the light-passing piece 8 are respectively in sealing connection with each other at the upper side and the lower side of the lens cone protective air passage through a lens cone protective gas lower sealing O-shaped ring 11 and a lens cone protective upper O-shaped ring 12.
The first circulating cold water cooling channel comprises a lens barrel water cooling inlet 10, a lens barrel water cooling outlet 16 and a lens barrel water cooling cavity 17. And a lens barrel water-cooling rectangular sealing ring 9 is further arranged on one side of the first limiting block, which is abutted against the first limiting matching block.
The internal structure of the powder feeding piece 6 is complex, the SLM metal printing mode is adopted in the embodiment, and the surface precision is improved by adopting the secondary cutting processing mode.
The inner layer protective gas cover 5 is assembled on the powder feeding piece 6, the middle layer protective gas cover 3 is assembled on the inner layer protective gas cover 5, and the outer layer protective gas cover 2 is assembled on the middle layer protective gas cover 3.
And, the inward inclination angle of the inner layer protection air channel 20 of the inner layer protection air cover 5 is 23 degrees, so that the cladding layer powder fed from the powder feeding piece 6 can be restrained, and the utilization rate of the cladding layer powder is improved. And an inner layer air flue air inlet 25 is formed in the inner layer protection air hood 5.
The middle layer protective air channel 21 of the middle layer protective air hood 3 is vertical to the basal body, so that a turbulent layer with the thickness of 8mm and the diameter of 52mm can be formed between the basal body and the working head, and the high-temperature region of the cladding layer is effectively protected. The middle layer protective gas hood 3 is provided with a middle layer air flue air inlet 27.
The outer protection air channel 22 of the outer protection gas hood 2 forms a 45-degree deflection angle outwards, so that swirling air flow can be formed in a region far away from a cladding region, and the temperature gradient of a matrix is reduced. And an outer layer air flue air inlet 1 is formed in the outer layer protective air hood 2.
The inside of three-layer air flue adopts the equipment mode, and the air flue that gaseous flow flows through all is smooth curve, reduction air current that can be better to the striking of air flue lateral wall to obtain more stable air current.
The assembling method of the assembled three-layer airflow traveling protection laser cladding working head comprises the following steps:
1) the outer layer protective gas cover 2 is fixedly arranged on the middle layer protective gas cover 3 through a through hole on the side wall by using a fastening bolt;
2) the middle layer protective gas cover 3 is fixedly arranged on the inner layer protective gas cover 5 through a through hole on the side wall by using a fastening bolt;
3) the inner layer protective gas hood 5 is fixedly arranged on the powder feeding piece 6 through a through hole on the side wall by using a fastening bolt;
4) the powder feeding pieces 6 and the light-transmitting pieces 8 are assembled and installed through four countersunk head bolts;
5) the light-transmitting member 8 is mounted on the lens barrel connecting member 14 using the light-transmitting member pressing block 13;
6) the lens cone protective gas system consists of a lens cone protective gas inlet 23, a lens cone protective gas passage 15, a lens cone protective gas upper sealing ring 12 and a lens cone protective gas lower sealing ring 11 and is used for preventing powder from entering the inside of the lens cone to influence laser focusing;
7) the lens cone water-cooling circulating system consists of a lens cone water-cooling water inlet 10, a lens cone water-cooling cavity 17, a lens cone water-cooling water outlet 16 and a lens cone water-cooling rectangular sealing ring 9, and aims to prevent the influence of over-high laser temperature on laser focusing caused by the transmission of the over-high laser temperature to a lens cone assembly.
8) The powder feeding part water cooling circulation system consists of a powder feeding water cooling water inlet 24, a powder feeding water cooling cavity 19, a powder feeding water cooling water outlet 26, a powder feeding water cooling upper sealing O-shaped ring 7 and a powder feeding water cooling lower sealing O-shaped ring 4, and is used for preventing the influence of temperature accumulation on powder feeding in the laser processing process.
The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.
Claims (10)
1. The utility model provides an assembled three-layer air current retinue protection laser cladding working head which characterized in that includes: the lens barrel comprises a light-transmitting piece, a powder feeding piece, an inner layer protective gas cover, a middle layer protective gas cover, an outer layer protective gas cover and a lens barrel connecting piece, wherein the inner layer protective gas cover, the middle layer protective gas cover and the outer layer protective gas cover are coaxially embedded and arranged outside the side wall of the powder feeding piece; the powder feeding piece is sleeved outside the side wall of the light-transmitting piece;
the lens cone connecting piece is provided with a first circulating cooling water flow channel for radiating the light-transmitting piece; the powder feeding piece is provided with a powder inlet communicated with the powder outlet and a second circulating cooling water flow channel, and the second circulating cooling water flow channel flows through the side wall of the light-transmitting piece and is used for dissipating heat of the powder feeding piece and the light-transmitting piece;
the lens cone connecting piece and the light passing piece are correspondingly provided with a lens cone protective air passage for blowing air into the light passing piece so as to prevent powder from entering the inside of the lens cone.
2. The fabricated three-layer airflow traveling protection laser cladding working head of claim 1, characterized in that: the side wall of the light-transmitting piece extends outwards along the radial direction to form a first limiting block, and the end surface of the lens cone connecting piece extends inwards along the radial direction to form a first limiting matching block; the limiting block and the limiting matching block are in limiting matching along the direction of inserting the light-transmitting piece into the lens cone connecting piece;
the inner wall of the lens cone connecting piece extends inwards along the radial direction above the first limit matching block to form a second limit matching block; one part of the light-transmitting piece pressing block is inserted into the end face of the light-transmitting piece, the other part of the light-transmitting piece pressing block extends outwards along the radial direction to form a second limiting block, and the second limiting block is in limiting fit with the second limiting matching block in the direction opposite to the direction in which the light-transmitting piece is inserted into the lens barrel connecting piece.
3. The fabricated three-layer airflow traveling protection laser cladding working head of claim 1, characterized in that: the side wall of the light-transmitting piece extends outwards along the radial direction to form a circle of boss, and the boss and the powder feeding piece are fixed through four countersunk head bolts; an upper sealing ring and a lower sealing ring are arranged between the light-transmitting piece and the powder feeding piece; and a water cooling cavity of the second circulating cold water cooling channel is formed between the upper sealing ring and the lower sealing ring.
4. The fabricated three-layer airflow traveling protection laser cladding working head of claim 1, characterized in that: the powder feeding piece 6 is prepared by adopting SLM metal printing and secondary cutting processing.
5. The fabricated three-layer airflow traveling protection laser cladding working head of claim 1, characterized in that: the inner layer protective gas cover is assembled on the powder feeding piece, the middle layer protective gas cover is assembled on the inner layer protective gas cover, and the outer layer protective gas cover is assembled on the middle layer protective gas cover.
6. The fabricated three-layer airflow traveling protection laser cladding working head of claim 1, characterized in that: the inward inclination angle of the inner layer protection air channel of the inner layer protection air cover is 23 degrees, and the inner layer protection air channel is used for restraining the cladding layer powder output from the powder feeding piece.
7. The fabricated three-layer airflow traveling protection laser cladding working head of claim 1, characterized in that: the middle layer protective air passage of the middle layer protective air cover is vertical to the basal body so as to form a turbulent layer with the thickness of 8mm and the diameter of 52mm between the basal body and the working head.
8. The fabricated three-layer airflow traveling protection laser cladding working head of claim 1, characterized in that: an outer layer protective air channel of the outer layer protective air cover forms a 45-degree deflection angle outwards so as to form rotary airflow away from a cladding area, and therefore the temperature gradient of the matrix is reduced.
9. The fabricated three-layer airflow traveling protection laser cladding working head of claim 1, characterized in that: the inner layer protection gas hood and the powder feeding piece are positioned by coaxiality and shaft shoulders; the middle layer protective gas cover and the inner layer protective gas cover are positioned through coaxiality and shaft shoulders; the outer layer protective gas cover and the middle layer protective gas cover are positioned coaxially and by shaft shoulders.
10. The fabricated three-layer airflow traveling protection laser cladding working head of claim 1, characterized in that: the lens cone connecting piece is provided with an air inlet, the light-passing piece is provided with an air passage and an air outlet so as to form the lens cone protective air passage, and the lens cone connecting piece and the light-passing piece are respectively in sealing connection at the upper side and the lower side of the lens cone protective air passage through sealing pieces.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110394067.8A CN113061888A (en) | 2021-04-13 | 2021-04-13 | Assembled three-layer airflow traveling protection laser cladding working head |
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| CN202110394067.8A CN113061888A (en) | 2021-04-13 | 2021-04-13 | Assembled three-layer airflow traveling protection laser cladding working head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114318326A (en) * | 2021-10-22 | 2022-04-12 | 苏州工业职业技术学院 | Laser cladding device with gas protection, system and method thereof |
-
2021
- 2021-04-13 CN CN202110394067.8A patent/CN113061888A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114318326A (en) * | 2021-10-22 | 2022-04-12 | 苏州工业职业技术学院 | Laser cladding device with gas protection, system and method thereof |
| CN114318326B (en) * | 2021-10-22 | 2023-10-27 | 苏州工业职业技术学院 | Laser cladding device, system and method with gas protection |
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