CN111996528A - Laser cladding head based on double-vibrating-mirror system - Google Patents
Laser cladding head based on double-vibrating-mirror system Download PDFInfo
- Publication number
- CN111996528A CN111996528A CN202011014926.8A CN202011014926A CN111996528A CN 111996528 A CN111996528 A CN 111996528A CN 202011014926 A CN202011014926 A CN 202011014926A CN 111996528 A CN111996528 A CN 111996528A
- Authority
- CN
- China
- Prior art keywords
- mirror
- laser
- cladding
- channel
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Abstract
The invention discloses a laser cladding head based on a double-vibrating-mirror system, which comprises a light guide cylinder and a cladding end head arranged at the far end of the light guide cylinder, wherein a laser projection channel is arranged on the cladding end head, a first vibrating mirror, a second vibrating mirror, a focusing mirror and a protective mirror are sequentially arranged in the laser projection channel from back to front along the projection direction of a laser beam, the rotating central line of the first vibrating mirror is vertical to the rotating central line of the second vibrating mirror, and the rotating central line of the first vibrating mirror is vertical to the projection direction of the laser beam in the light guide cylinder. The first vibrating mirror and the second vibrating mirror are driven to scan in the x-axis direction and the y-axis direction respectively to form rectangular light spots, the light spots are under the action of the focusing mirror, light beams irradiated to the surface of a material are more uniform, and meanwhile, the laser cladding efficiency is greatly improved. The laser cladding head has the advantages that the number of lenses in the laser cladding head is small, the structure is simple, each lens can be well protected in the machining process, and the service life is long.
Description
Technical Field
The invention relates to the field of laser cladding, in particular to a laser cladding head based on a double-vibrating-mirror system.
Background
Laser cladding is a method of adding a cladding material to the surface of a base material and fusing the cladding material with a thin layer on the surface of the base material by using a laser beam having a high energy density, thereby forming a filler cladding layer on the surface of the base layer. As a new surface modification technology, laser cladding has many advantages such as compact structure, good bonding between a coating and a substrate, and many suitable cladding materials, and thus has a wide application in recent years, for example, in surface repair processing of the peripheral wall of an inner hole in equipment.
The existing laser cladding optical head has two main aspects on the principle of laser beam processing: 1. the laser is changed into rectangular light spots through the action of lenses such as a collimating lens, a focusing lens, an integrating mirror and the like, the mode for optimizing the quality of the light spots is simple in structure, but the lenses are easily damaged due to the problem of working environment; 2. through the mode of coaxial powder feeding in the light, blow off the powder from the powder feeding passageway on the direct action facula, powder transport and cladding go on in step, and this kind of mode can improve cladding layer quality, improves the powder utilization ratio, but its structure is complicated, and optical head equipment cost is big.
Disclosure of Invention
It is an object of the present invention to provide a laser cladding head based on a dual galvanometer system to overcome one or more of the drawbacks of prior art laser cladding heads.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a laser cladding head based on two mirror systems that shake, the laser cladding head is in including a light pipe, setting the cladding end of light pipe distal end, and set up cladding end just has the powder feeding nozzle who send the powder passageway, it throws the passageway to melt the laser that has on the end, first mirror, the second that shakes, focusing mirror and protective glass have set gradually forward from the back along the projection direction of laser beam in the laser projection passageway, it is used for the drive to melt to be equipped with on the end first motor that shakes the mirror is rotatory, is used for the drive the second motor that the mirror is rotatory is shaken to the second, wherein, the rotation center line that first shakes with the rotation center line mutually perpendicular of second mirror that shakes, just the rotation center line that first shakes with the projection direction mutually perpendicular of laser beam in the light pipe.
Preferably, the laser projection channel has a first channel and a second channel which are communicated with each other, the extending direction of the first channel is perpendicular to the extending direction of the second channel, and the second galvanometer is arranged at the joint of the first channel and the second channel.
Furthermore, the extending direction of the first channel, the extending direction of the second channel and the projecting direction of the laser beam in the light guide cylinder are mutually vertical.
Further, the cladding end is arranged at the far end of the light guide cylinder and positioned on one side of the light guide cylinder.
Further, the first motor is installed at the top of the cladding end head, and the second motor is installed on one side of the cladding end head.
Furthermore, the second motor and the light guide cylinder are positioned on the same side of the cladding end.
Preferably, the outlet of the powder feeding channel is positioned in front of the protective glasses.
Preferably, the cladding end head is further provided with a cooling channel, and the cooling channel is annularly arranged on the cladding end head.
Further, the cooling channel is provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively arranged on different sides of the cladding end head, and the water outlet is higher than the water inlet.
Preferably, the laser cladding head further comprises a collimating lens arranged at the near end of the light guide cylinder and a connector connected with the laser.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the laser cladding head based on the double-vibrating-mirror system, the first vibrating mirror and the second vibrating mirror are respectively arranged in two mutually perpendicular directions, so that the first vibrating mirror and the second vibrating mirror respectively scan in the x-axis direction and the y-axis direction to form rectangular light spots, the light spots are under the action of the focusing mirror, light beams irradiated to the surface of a material are more uniform, and meanwhile, the laser cladding efficiency is greatly improved. The laser cladding head has the advantages that the number of lenses in the laser cladding head is small, the structure is simple, each lens can be well protected in the machining process, and the service life is long.
Drawings
FIG. 1 is a schematic view of the overall structure of a laser cladding head according to the present invention;
FIG. 2 is a schematic sectional view of a laser cladding head according to the present invention;
fig. 3 is a front view of a laser cladding head of the present invention;
FIG. 4 is a longitudinal sectional view of the laser cladding head of FIG. 3;
FIG. 5 is a schematic diagram of an optical path transmission path in a laser projection channel in the laser cladding head of the present invention;
wherein: 1. a light guide tube; 2. cladding the end; 21. a water inlet; 22. a water outlet; 3. a first galvanometer; 4. a second galvanometer; 5. a first motor; 6. a second motor; 7. a focusing mirror; 70. a focusing lens base; 8. protective glasses; 80. A protective lens base; 9. a powder feeding nozzle; 91. a powder feeding port.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1 to 5, a laser cladding head based on a double-vibrating mirror system includes a light guide tube 1, a cladding end 2 disposed at a distal end of the light guide tube 1, a collimating mirror (not shown in the figure) disposed inside a proximal end of the light guide tube 1, a connector 10 for connecting a laser, and a powder feeding nozzle 9 disposed at a distal end of the cladding end 2 and having a powder feeding channel, wherein a laser beam emitted by the laser is collimated by the collimating mirror and then projected forward along the light guide tube 1 to the cladding end 2.
The cladding end 2 is provided with a laser projection channel, a first vibrating mirror 3, a second vibrating mirror 4, a focusing mirror 7 and a protective mirror 8 are sequentially arranged in the laser projection channel from back to front along the projection direction of laser beams, a first motor 5 for driving the first vibrating mirror 3 to rotate and a second motor 6 for driving the second vibrating mirror 3 to rotate are arranged on the cladding end 2, wherein the rotating central line of the first vibrating mirror 3 is perpendicular to the rotating central line of the second vibrating mirror 4, and the rotating central line of the first vibrating mirror 3 is perpendicular to the projection direction of the laser beams in the self-guide cylinder 1.
Specifically, the laser projection channel in the cladding end head 2 is provided with a first channel and a second channel which are communicated with each other, the extending direction of the first channel is perpendicular to the extending direction of the second channel, and the second galvanometer 4 is arranged at the position where the first channel is connected with the second channel. Here, the extending direction of the first channel, the extending direction of the second channel, and the projecting direction of the laser beam in the light guide cylinder 1 are perpendicular to each other. The laser beam is projected to the first channel from the light guide cylinder 1 and then projected to the first vibrating mirror 3, passes through the first vibrating mirror 3 and then is projected to the second vibrating mirror 3 along the first channel, then passes through the second vibrating mirror 4 and then is projected to the second channel, and then sequentially passes through the focusing mirror 7 and the protective mirror 8 and is projected to the surface to be processed.
In this embodiment, the second galvanometer 4 is arranged in the x direction, the first galvanometer 3 is arranged in the y direction, and the first galvanometer 3 and the second galvanometer 4 respectively scan in the x axis direction and the y axis direction to finally form a rectangular light spot, and the light spot is more uniform through the action of the focusing mirror 7 to irradiate light beams on the surface of the material. Compared with a round spot, the rectangular spot has a spot variation range of 20-40mm, so that the laser cladding efficiency is greatly improved.
In this embodiment, referring to fig. 1 to 4, the cladding tip 2 is disposed at the distal end of the light guide tube 1 and located at one side of the light guide tube 1, the first motor 5 is installed at the top of the cladding tip 2, and the second motor 6 is installed at one side of the cladding tip 2 and located at the same side of the cladding tip 2 as the light guide tube 1.
In the cladding end head 2, a focusing lens 7 is sequentially arranged on the cladding end head 2 through a focusing lens seat 70 and a protective lens 8 through a protective lens seat 80, a powder feeding nozzle 9 is arranged at the tail end of the cladding end head 2, a powder feeding port 91 communicated with a powder feeding channel is arranged on the powder feeding nozzle, and an outlet of the powder feeding channel is positioned in front of the protective lens 8, so that the powder is prevented from entering the cladding end head 2 to cause the damage of the focusing lens 7 and a vibrating lens. The powder feeding nozzle 9 is additionally provided with a protective gas channel, so that the splashed powder can be blown away by the introduced protective gas, and the effect of avoiding the protective glasses 8 is achieved. The powder feeding channel and the laser beam penetrating out of the cladding end head 2 are projected to the same position of the surface to be processed together, so that the powder can be timely clad on the surface to be processed when reaching the surface to be processed.
Referring to fig. 1, a cooling channel (not shown in the figure) is further formed on the cladding tip 2, the cooling channel is annularly arranged on the cladding tip 2, the cooling channel is provided with a water inlet 21 and a water outlet 22, the water inlet 21 and the water outlet 22 are respectively arranged on different sides of the cladding tip 2, the water inlet 21 and the water outlet 22 are located at different positions in the height extending direction of the cladding tip 2, and the water outlet 22 is specifically higher than the water inlet 21. Therefore, the cooling function can be performed on the parts with larger heat productivity in the laser cladding head, such as the peripheries of the first motor 5 and the second motor 6, and the peripheries of the focusing mirror 7 and the protective mirror 8, and damage to each lens and the motor caused by temperature is avoided.
To sum up, according to the laser cladding head based on the double-vibrating-mirror system, the first vibrating mirror 3 and the second vibrating mirror 4 are respectively arranged in two mutually perpendicular directions, so that the first vibrating mirror 3 and the second vibrating mirror 4 respectively scan in the x-axis direction and the y-axis direction to form rectangular light spots, the light spots are under the action of the focusing mirror 7, light beams irradiated on the surface of a material are more uniform, and meanwhile, the laser cladding efficiency is greatly improved. The laser cladding head has the advantages that the number of lenses in the laser cladding head is small, the structure is simple, each lens can be well protected in the machining process, and the service life is long.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a laser cladding head based on two mirror systems that shake which characterized in that: the laser cladding head includes a light guide cylinder, sets up the cladding end of light guide cylinder distal end, and set up cladding end and have the powder feeding nozzle who send the powder passageway, it throws the passageway to have laser on the end to clad, along the projection direction of laser beam in the laser throws the passageway and has set gradually first mirror, second mirror, focusing mirror and protective glass of shaking from the back forward, it is used for the drive to clad to be equipped with on the end first motor that shakes the mirror rotation, be used for the drive the second motor that the mirror is rotatory is shaken to the second, wherein, the rotation center line of first mirror that shakes with the rotation center line mutually perpendicular of second mirror that shakes, just the rotation center line of first mirror that shakes with the projection direction mutually perpendicular of laser beam in the light guide cylinder.
2. The laser cladding head based on the dual-galvanometer system of claim 1, characterized in that: the laser projection channel is provided with a first channel and a second channel which are communicated with each other, the extending direction of the first channel is perpendicular to the extending direction of the second channel, and the second galvanometer is arranged at the joint of the first channel and the second channel.
3. The dual-mirror system based laser cladding head of claim 2, wherein: the extending direction of the first channel, the extending direction of the second channel and the projecting direction of the laser beams in the light guide cylinder are mutually vertical.
4. The dual-mirror system based laser cladding head of claim 2, wherein: the cladding end is arranged at the far end of the light guide cylinder and positioned on one side of the light guide cylinder.
5. The dual-mirror system based laser cladding head of claim 2, wherein: the first motor is installed at the top of the cladding end head, and the second motor is installed on one side of the cladding end head.
6. The laser cladding head based on the dual-galvanometer system of claim 5, characterized in that: the second motor and the light guide cylinder are positioned on the same side of the cladding end.
7. The laser cladding head based on the dual-galvanometer system of claim 1, characterized in that: the outlet of the powder feeding channel is positioned in front of the protective glasses.
8. The laser cladding head based on the dual-galvanometer system of claim 1, characterized in that: the cladding end head is also provided with a cooling channel which is annularly arranged on the cladding end head.
9. The laser cladding head based on the dual-galvanometer system of claim 8, characterized in that: the cooling channel is provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively arranged on different sides of the cladding end head, and the water outlet is higher than the water inlet.
10. The laser cladding head based on the dual-galvanometer system of claim 1, characterized in that: the laser cladding head further comprises a collimating lens arranged at the near end of the light guide cylinder and a connector connected with a laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011014926.8A CN111996528A (en) | 2020-09-24 | 2020-09-24 | Laser cladding head based on double-vibrating-mirror system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011014926.8A CN111996528A (en) | 2020-09-24 | 2020-09-24 | Laser cladding head based on double-vibrating-mirror system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111996528A true CN111996528A (en) | 2020-11-27 |
Family
ID=73474824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011014926.8A Pending CN111996528A (en) | 2020-09-24 | 2020-09-24 | Laser cladding head based on double-vibrating-mirror system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111996528A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115780826A (en) * | 2023-01-19 | 2023-03-14 | 杭州爱新凯科技有限公司 | Laser melting 3D printing method and printing head |
-
2020
- 2020-09-24 CN CN202011014926.8A patent/CN111996528A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115780826A (en) * | 2023-01-19 | 2023-03-14 | 杭州爱新凯科技有限公司 | Laser melting 3D printing method and printing head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210197318A1 (en) | Optical path/beam splitting unit and coaxial-wire-feed cladding head thereof | |
| US11772193B2 (en) | Annular hollow offset-focus laser cladding device | |
| CN104289811A (en) | Multi-beam center wire feeding laser processing head and processing method thereof | |
| CN109989060B (en) | Coaxial powder feeding high-speed laser spraying device | |
| CN111872559B (en) | Laser welding device and working method thereof | |
| CN1397403A (en) | Laser beam process method and appts. thereof | |
| CN214768946U (en) | Three-beam wire powder mixed laser cladding system | |
| CN210683947U (en) | Variable facula's galvanometer scanning formula laser cladding processing head device | |
| CN107584211B (en) | High-power laser welding system based on high-speed scanning galvanometer and welding method thereof | |
| CN210683941U (en) | High-speed laser cladding head | |
| CN110684974A (en) | Variable facula's galvanometer scanning formula laser cladding processing head device | |
| CN111996528A (en) | Laser cladding head based on double-vibrating-mirror system | |
| CN211445900U (en) | Laser cladding head for inner wall of cylinder | |
| CN112226762A (en) | Outer wall cleaning and cladding combined machining equipment for cylindrical hydraulic oil cylinder | |
| CN213652649U (en) | High-speed laser cladding head | |
| CN212270238U (en) | Laser cladding head based on double-vibrating-mirror system | |
| CN113102781A (en) | Three-beam wire powder mixed laser cladding system | |
| CN112317955A (en) | High-speed laser cladding device for inner wall of pipe fitting | |
| CN112251747A (en) | Cleaning and cladding combined machining equipment for inner wall of cylindrical hydraulic oil cylinder | |
| CN112226763A (en) | High-speed laser cladding device for outer surface of bar | |
| CN215238570U (en) | Composite laser cladding head and cladding device | |
| CN212420087U (en) | Optical head device for universal deburring | |
| CN114012248B (en) | Optical path system of laser cutting head | |
| CN115815806A (en) | Laser welding device | |
| CN205614211U (en) | A wire drive feed unit in laser light for laser cladding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |