CN220515770U - Laser ranging automatic focusing laser processing head - Google Patents
Laser ranging automatic focusing laser processing head Download PDFInfo
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- CN220515770U CN220515770U CN202321635405.3U CN202321635405U CN220515770U CN 220515770 U CN220515770 U CN 220515770U CN 202321635405 U CN202321635405 U CN 202321635405U CN 220515770 U CN220515770 U CN 220515770U
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- machining head
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- 238000012545 processing Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000003754 machining Methods 0.000 claims description 18
- 238000013519 translation Methods 0.000 claims description 18
- 238000005459 micromachining Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012994 industrial processing Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Laser Beam Processing (AREA)
Abstract
The utility model belongs to the technical field of laser processing, and particularly relates to a laser processing head capable of automatically focusing by laser ranging. The utility model discloses a laser processing head, comprising: the workbench is fixedly connected with the processing end of the precision machine tool; the laser emission device is fixed on the workbench and emits processing laser to process the workpiece; the mobile ranging component is cooperatively arranged on the workbench and transmits inclined ranging laser, and the inclined ranging laser coincides with a processing laser focus; and the camera device is fixedly connected with the workbench and is coaxial with the laser emission device and the mobile ranging component for camera shooting. The laser processing head can realize automatic focusing at the processing positions of the air film holes with different shapes, ensure the stability during processing the air film holes and improve the processing quality of laser micromachining.
Description
Technical Field
The utility model belongs to the technical field of laser processing, and particularly relates to a laser processing head capable of automatically focusing by laser ranging.
Background
Laser drilling is the laser processing technology that has reached practical use at the earliest, and is one of the main application fields of laser processing. With rapid development of modern industry and scientific technology, more and more materials with high hardness and high melting point are used, and due to the characteristics of high energy, high focusing and the like of laser, the laser drilling processing technology is widely applied to a plurality of industrial processing technologies.
Aeroengine performance is largely dependent on the turbine inlet temperature, which is limited by the blade material. The air film cooling technology is one of key technologies for improving the cooling effect of the blade, and the equipment can still safely operate when the working temperature exceeds the melting point of the material by continuously cooling the components. The key of the air film cooling technology is the processing of air film holes, and the air film holes with dense blade surfaces can be processed by adopting a laser drilling technology, so that the processing efficiency is greatly improved.
In the laser drilling process, in order to ensure that the focal length of the laser beam always falls on the surface of a processed area, the traditional focal length adjustment method is to obtain the three-dimensional shape of a workpiece in advance, perform off-line programming and ensure that the processing focal length meets the requirement in the laser head processing process. However, the fluctuation exists on the actual machining surface, and the fluctuation is inconsistent with an ideal model, so that the focus of a laser beam is not on the machining surface in the actual laser micromachining process, the consistency of machining the air film hole is difficult to ensure, and the machining quality is reduced.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a laser processing head for automatic focusing of laser ranging, which can realize automatic focusing at processing positions of different appearances, and has good processing consistency and high processing quality.
In order to achieve the above object, the present utility model provides a laser processing head for automatic focusing of laser ranging, comprising:
the workbench is fixedly connected with the processing end of the precision machine tool;
the laser emission device is fixed on the workbench and emits processing laser to process a workpiece;
the mobile ranging component is cooperatively arranged on the workbench and transmits oblique ranging laser, and the oblique ranging laser coincides with the processing laser focus;
and the camera device is fixedly connected with the workbench, and is coaxial with the laser emission device and the mobile ranging component for camera shooting.
Preferably, the movable ranging component is mounted on the workbench in a matched manner through an inclined bracket, the horizontal plane of the inclined bracket is fixedly connected with the workbench, and the inclined plane of the inclined bracket is in sliding connection with the movable ranging component.
Preferably, the mobile ranging component comprises a two-dimensional translation table and a range finder, wherein the two-dimensional translation table is in sliding connection with the inclined surface of the inclined support, and the range finder is fixed on one side, far away from the inclined support, of the two-dimensional translation table and emits ranging laser.
Preferably, the two-dimensional translation stage, the distance meter and the camera device are all electrically connected with a precision machine tool control system.
Preferably, the laser emission device is any one of a laser generator, a cold laser emitter and a laser generation body, and emits processing laser to process the workpiece.
Preferably, the image pickup device is any one of an industrial camera, an electronic camera and an electric vacuum camera, and is fixed on the workbench and picks up an image coaxially with the laser emission device and the mobile ranging component.
Preferably, the distance meter is any one of a laser distance meter and an infrared distance meter, and emits distance measuring laser.
Compared with the prior art, the utility model has the following advantages and technical effects:
the laser processing head can realize automatic focusing at the processing positions of the air film holes with different shapes, adjust the distance between the laser head and the processing surface in real time, adjust the processing focal length, ensure the stability when processing the air film holes and effectively improve the processing quality when in laser micro-processing.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application. In the drawings:
fig. 1 is a schematic view of a laser processing head according to the present utility model.
Fig. 2 is a flow chart of the operation of the laser processing head of the present utility model.
Wherein, 1-the camera device; 2-a workbench; 3-tilting a bracket; 4-a two-dimensional translation stage; 5-distance measuring device; 6-laser emitting device.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-2, the present utility model provides a laser processing head for laser ranging auto-focusing, comprising:
the workbench 2 is fixedly connected with the processing end of the precision machine tool;
it can be understood that the machining end of the precision machine tool and the workbench 2 are fixed with each other, and the workbench 2 is driven to move by the machining end of the precision machine tool, so that the machining position is changed.
The laser emitting device 6 is fixed on the workbench 2 and emits processing laser to process a workpiece;
the mobile ranging component is cooperatively arranged on the workbench 2 and transmits inclined ranging laser, and the inclined ranging laser coincides with the processing laser focus;
the camera device 1 is fixedly connected with the workbench 2 and is coaxial with the laser emitting device 6 and the mobile ranging component for shooting.
It will be appreciated that the table 2 is mounted on a precision machine tool and can be accurately positioned by the movement of the precision machine tool.
It can be understood that the image pickup device 1 performs coaxial image pickup on the laser emission device 6 and the mobile ranging component through the set optical path, and detects the focus coincidence position of the ranging laser and the processing laser in real time.
In particular, the optical path may be set in advance by a coated beam splitter or beam splitting prism.
Further optimizing scheme, remove range finding subassembly through 3 cooperation of slope support install in on the workstation 2, the horizontal plane of slope support 3 with workstation 2 fixed connection, the inclined plane of slope support 3 with remove range finding subassembly sliding connection, through the inclined plane that is equipped with in the affiliated slope support 3 for remove range finding subassembly with there is the contained angle between the laser emitter 6, at this moment, remove range finding subassembly transmission range finding laser with there is the contained angle equally between the processing laser of laser emitter 6 transmission, through control remove range finding subassembly and slide in the inclined plane of slope support 3 for range finding laser's focus coincides with the focus of processing laser, accomplishes focusing.
Further optimizing scheme, remove range unit includes two-dimensional translation platform 4 and range finder 5, two-dimensional translation platform 4 with inclined plane sliding connection of inclined support 3, range finder 5 is fixed in two-dimensional translation platform 4 is kept away from inclined support 3 one side to the range finding laser is launched.
It can be understood that by sliding the two-dimensional translation stage 4, the focal position of the ranging laser is changed, and the ranging laser is focused with the focal point of the processing laser.
In a further optimized scheme, the two-dimensional translation stage 4, the distance meter 5 and the camera device 1 are all electrically connected with a precision machine tool control system.
It can be understood that the movements of the two-dimensional translation stage 4 and the workbench 2 are controlled by a precision machine tool control system, and meanwhile, the camera device 1, the two-dimensional translation stage 4 and the range finder 5 all feed back signals to the control system in real time, and the control system adjusts the height of the laser head in real time according to the feedback data.
In a further optimized scheme, the laser emission device 6 is any one of a laser generator, a cold laser emitter and a laser generation body, and emits processing laser to process a workpiece.
In a further optimized scheme, the image pickup device 1 is any one of an industrial camera, an electronic camera and an electric vacuum camera, is fixed on the workbench 2 and is coaxial with the laser emitting device 6 and the mobile ranging component for image pickup.
According to a further optimization scheme, the distance meter 5 is any one of a laser distance meter and an infrared distance meter, and emits distance measuring laser.
The working principle of the utility model is as follows:
as shown in fig. 2, before starting processing, focusing the laser beam emitted by the laser emitting device 6, calibrating the laser beam focus in the field of view by the camera device 1, and fine-tuning the two-dimensional translation stage 4 to enable the ranging laser focus of the range finder 5 to coincide with the processing laser focus, wherein the range finder 5 reads the data and inputs the data into the control system to complete the calibration of focal length height; the precision machine tool then controls the workbench 2 to position the laser emitting device 6 to the processing position, the system detects the reading of the distance meter 5, compares the reading with the focal length height calibration value, automatically corrects the processing height of the laser head, and performs laser processing.
In addition, the automatic correction method is as follows: before machining, finely adjusting the two-dimensional translation table 4 to enable the ranging laser to be focused with the machining laser, and determining a focal length height calibration value by reading of the range finder 5; when the machining is started, the laser emitting device 6 is positioned to a machining position, the distance meter 5 reads the distance and compares the distance meter with the focal length height calibration value, when the reading is smaller than the focal length height calibration value, the precision machine tool controls the workbench 2 to ascend, the workbench 2 stops moving until the reading is equal to the focal length height calibration value, and the correction is completed and the laser machining is performed; similarly, when the reading is greater than the focal length height calibration value, the workbench 2 descends, and the automatic correction process is completed.
The foregoing is merely a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a laser rangefinder auto focus's laser processing head which characterized in that: comprising the following steps:
the workbench (2) is fixedly connected with the processing end of the precision machine tool;
the laser emission device (6) is fixed on the workbench (2) and emits processing laser to process a workpiece;
the mobile ranging component is cooperatively arranged on the workbench (2) and transmits inclined ranging laser, and the inclined ranging laser coincides with the processing laser focus;
the camera device (1) is fixedly connected with the workbench (2), and is coaxial with the laser emission device (6) and the mobile ranging component for camera shooting.
2. A laser machining head for laser ranging auto-focusing according to claim 1, characterized in that: the movable distance measuring assembly is mounted on the workbench (2) in a matched mode through an inclined support (3), the horizontal plane of the inclined support (3) is fixedly connected with the workbench (2), and the inclined plane of the inclined support (3) is in sliding connection with the movable distance measuring assembly.
3. A laser machining head for laser ranging autofocus as claimed in claim 2, wherein: the mobile ranging component comprises a two-dimensional translation table (4) and a range finder (5), wherein the two-dimensional translation table (4) is in sliding connection with the inclined surface of the inclined support (3), and the range finder (5) is fixed on one side, away from the inclined support (3), of the two-dimensional translation table (4) and emits ranging laser.
4. A laser machining head for laser ranging autofocus as claimed in claim 3, wherein: the two-dimensional translation table (4), the distance meter (5) and the camera device (1) are electrically connected with a precision machine tool control system.
5. A laser machining head for laser ranging auto-focusing according to claim 1, characterized in that: the laser emission device (6) is a laser generator and emits processing laser to process the workpiece.
6. A laser machining head for laser ranging auto-focusing according to claim 1, characterized in that: the camera device (1) is an industrial camera, is fixed on the workbench (2) and is coaxial with the laser emitting device (6) and the mobile ranging component for shooting.
7. A laser machining head for laser ranging autofocus as claimed in claim 3, wherein: the distance measuring device (5) is a laser distance measuring device and emits distance measuring laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321635405.3U CN220515770U (en) | 2023-06-26 | 2023-06-26 | Laser ranging automatic focusing laser processing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321635405.3U CN220515770U (en) | 2023-06-26 | 2023-06-26 | Laser ranging automatic focusing laser processing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220515770U true CN220515770U (en) | 2024-02-23 |
Family
ID=89927667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321635405.3U Active CN220515770U (en) | 2023-06-26 | 2023-06-26 | Laser ranging automatic focusing laser processing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220515770U (en) |
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2023
- 2023-06-26 CN CN202321635405.3U patent/CN220515770U/en active Active
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