CN219727214U - Multi-parameter monitoring laser head - Google Patents
Multi-parameter monitoring laser head Download PDFInfo
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- CN219727214U CN219727214U CN202320136995.9U CN202320136995U CN219727214U CN 219727214 U CN219727214 U CN 219727214U CN 202320136995 U CN202320136995 U CN 202320136995U CN 219727214 U CN219727214 U CN 219727214U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 70
- 230000003287 optical effect Effects 0.000 claims abstract description 42
- 239000000843 powder Substances 0.000 claims abstract description 35
- 238000005452 bending Methods 0.000 claims abstract description 11
- 238000012806 monitoring device Methods 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000000654 additive Substances 0.000 abstract description 7
- 230000000996 additive effect Effects 0.000 abstract description 7
- 238000005253 cladding Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 230000008021 deposition Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004372 laser cladding Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005542 laser surface treatment Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The utility model discloses a multi-parameter monitoring laser head which comprises a laser head body, wherein the laser head body is sequentially provided with a beam expander module, a collimating lens module, a focusing lens module and a powder feeding nozzle from top to bottom, the laser head body further comprises a parameter monitoring component, the parameter monitoring component comprises a beam splitter module, a turning arm and optical monitoring equipment, a beam splitter which is obliquely arranged is arranged in the beam splitter module, the beam splitter module is provided with a main light channel and a beam splitting channel, the light outlet side of the beam splitting channel is connected with the turning arm, a reflecting mirror which is obliquely arranged is arranged at the bending position of the turning arm, the light outlet side of the turning arm is connected with the light inlet side of the optical monitoring equipment, and the beam splitter module is arranged between the focusing lens module and the powder feeding nozzle. The utility model can monitor and record parameters in the cladding process in real time and improve the processing efficiency of laser fused deposition additive manufacturing.
Description
Technical Field
The utility model relates to a multi-parameter monitoring laser head, and belongs to the field of machine manufacturing.
Background
The current laser additive manufacturing technology is a novel manufacturing technology which directly manufactures a digital model into a solid part by using laser as an energy source and adopting a material layer-by-layer accumulation method based on a layered manufacturing principle. Laser cladding is a surface modification technology, is a typical representation of laser surface treatment, and is a process method for forming a molten pool and rapidly solidifying to form a coating layer after high-energy laser irradiation by adding cladding materials on the surface of a substrate. The laser cladding technology is widely applied to surface modification and additive manufacturing of parts with high precision, high strength and complex shapes. However, the conventional cladding laser head in the prior art cannot record parameters in the cladding process in real time, the requirements of parameters such as higher precision, speed and the like are difficult to be met for some workpieces with high cladding layer performance, the conventional cladding laser head cannot be applied when more monitoring requirements are needed to be carried out simultaneously, the repair treatment of the follow-up defects in the additive manufacturing process is not facilitated, and the laser processing efficiency is low.
Disclosure of Invention
The utility model aims to provide a multi-parameter monitoring laser head which can monitor and record parameters in the cladding process in real time and improve the processing efficiency of laser melting deposition additive manufacturing.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the utility model provides a multi-parameter monitoring laser head, includes the laser head body, laser head body from the top down is equipped with beam expander module, collimating mirror module, focusing mirror module and send the powder nozzle in proper order, the laser head body still includes parameter monitoring subassembly, parameter monitoring subassembly includes spectroscope module, turning arm and optical monitoring equipment, be equipped with the spectroscope that is the slope setting in the spectroscope module, spectroscope module has main optical channel and beam split channel, beam split channel light-emitting side is connected with the turning arm, the department of bending of turning arm is equipped with the speculum that is the slope setting, the light-emitting side of turning arm with optical monitoring equipment's income light side is connected, spectroscope module locates focusing mirror module with send between the powder nozzle.
Preferably, a protective lens module is arranged between the spectroscope module and the powder feeding nozzle, and a protective lens is arranged in the protective lens module.
Preferably, the number of the parameter monitoring components is a plurality, the spectroscope modules in the parameter monitoring components are sequentially connected, and the light emitting side of the main light channel of the spectroscope module above is connected with the light entering side of the main light channel of the spectroscope module below.
Preferably, the optical monitoring devices in the parameter monitoring assembly are different.
Preferably, the optical monitoring device is a colorimetric pyrometer, a spectrometer or an industrial camera.
Preferably, a nozzle height adjusting structure is arranged between the protective mirror module and the powder feeding nozzle.
Preferably, the nozzle height adjusting structure comprises a hollow sleeve, the hollow sleeve is coaxially sleeved above the powder feeding nozzle, the hollow sleeve is connected with the powder feeding nozzle in a sliding fit manner, and the hollow sleeve is provided with a limit screw and a fastening screw.
Preferably, the beam expander module, the collimating lens module, the focusing lens module, the spectroscope module, the protection lens module and the powder feeding nozzle are detachably connected.
Preferably, the spectroscope module, the crank arm and the optical monitoring device are in detachable connection.
Preferably, a C-port connecting ring is arranged in the crank arm, the C-port connecting ring is respectively arranged between the bending part of the crank arm and the spectroscope module and between the bending part of the crank arm and the optical monitoring equipment, and the C-port connecting ring is connected with an optical lens.
Preferably, the optical lens is an optical filter and an energy attenuation sheet.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, through setting the parameter monitoring assembly, parameters in the laser cladding process can be monitored in real time, and the multi-parameter monitoring laser head can work and adjust at the same time, so that the processing efficiency of laser melting deposition additive manufacturing is improved. Meanwhile, a plurality of parameter monitoring components can be adopted to monitor a plurality of different parameters simultaneously, and the parameter monitoring components can be increased or reduced as required, so that the requirements of corresponding monitoring can be flexibly met. Through the structural concatenation design of detachable connection between the module, when partial module damages and can not use, can the direct replacement module of this damage, easy maintenance avoids reaching whole laser head, can realize the saving of cost. The parameter monitoring assembly is also designed in a detachable connection mode, and can be easily realized by singly exchanging the required optical monitoring equipment according to the monitoring requirement of the required parameter. Through the setting of nozzle height adjustment structure, the position of powder feeding nozzle can be adjusted to can adjust the relative position at powder spot center and laser facula center, pinpoint powder spot center.
Drawings
Fig. 1 is a front view of an embodiment of the present utility model.
Fig. 2 is a schematic diagram of the optical path system of the embodiment of fig. 1.
FIG. 3 is a schematic view of one embodiment of a stop screw of the nozzle height adjustment structure of the present utility model.
In the figure: 1. a beam expander module; 2. a collimator mirror module; 3. a focusing mirror module; 4. a spectrometer; 5. a spectroscope module; 6. a colorimetric pyrometer; 7. a crank arm; 8. a protection mirror module; 9. powder feeding nozzle.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
in the description of the present utility model, it should be noted that all directional indicators (such as upper, lower, etc.) are based on the orientation or positional relationship shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 and 2, the utility model discloses a multi-parameter monitoring laser head, which comprises a laser head body, wherein the laser head body is sequentially provided with a beam expander module 1, a collimator lens module 2, a focusing lens module 3 and a powder feeding nozzle 9 from top to bottom, and the laser head body also comprises a parameter monitoring component, and the parameter monitoring component comprises a beam splitter module 5, a crank arm 7 and optical monitoring equipment. The high-energy laser beam is emitted from an optical fiber to the light-entering side of the beam expander module 1, a beam expander is horizontally arranged in the beam expander module 1, a beam expander beam channel is arranged in the beam expander module 1, after the beam expander expands the high-energy laser beam to change the diameter and the divergence angle of the high-energy laser beam, the beam reaches the light-entering side of the collimating mirror module 2 along the beam expander beam channel, a collimating mirror is horizontally arranged in the collimating mirror module 2, a collimating beam channel is arranged in the collimating mirror module 2, after the collimating mirror changes a laser beam path with the divergence angle passing through the beam expander module 1 into a parallel light path, the beam reaches the light-entering side of the focusing mirror module 3 along the collimating beam channel, a focusing mirror is horizontally arranged in the focusing mirror module 3, and after the focusing mirror concentrates the parallel beams passing through the collimating mirror module 2 together to form a small light spot (focus), the beam reaches the light-entering side of the beam splitter module 5 along the focusing channel. The axes of the beam expander, the collimating lens and the focusing lens are coincident, the focus is formed on the working table surface of the parameter monitoring laser head, and the focus can always act on the surface of a workpiece along with the movement of the laser head or the movement of the working table surface, so that basic conditions are provided for monitoring the real-time state in the additive manufacturing process.
The spectroscope module 5 is arranged between the focusing mirror module 3 and the powder feeding nozzle 9. The spectroscope module 5 is internally provided with an obliquely arranged spectroscope, and the spectroscope module 5 is provided with a main light channel and a spectroscope channel. When the focused processing light beams are generated through the focusing mirror module 3 and finally form a focus, the beam splitter enables the processing light beams to generate a split light beam at the same time of not changing the original main path light beam direction, thereby forming a split light path. Therefore, the beam splitter module 5 has two light-emitting channels, the first light-emitting channel is a main light-emitting channel, and the second light-emitting channel is a beam splitter channel. The beam splitter module comprises a beam splitter module, a beam splitting channel, a beam splitter module, a beam splitter and an optical monitoring device, wherein a crank arm 7 is connected to the outer wall of the beam splitter module at the light-emitting side of the beam splitting channel, a reflecting mirror which is obliquely arranged is arranged at the bending position of the crank arm 7, a reflected light beam light-entering channel is arranged between the bending position of the crank arm 7 and the beam splitter module 5, a reflected light beam light-emitting channel is arranged between the bending position of the crank arm 7 and the optical monitoring device, and the light-emitting side of the reflected light beam light-emitting channel of the crank arm 7 is connected with the light-entering side of the optical monitoring device. It is convenient to direct the spectroscopic beam of the spectroscopic passage generated from the spectroscopic module 5 to the optical monitoring apparatus.
When the beam enters the reflected beam light entering channel along the light emitting side of the beam splitting channel and passes through the bending part of the crank arm 7, the reflecting mirror reflects the beam to the light emitting channel of the reflected beam and then enters the light entering side of the optical monitoring device, the optical monitoring device can obtain the wanted parameter acting on the surface of the workpiece, and the optical monitoring device can be a colorimetric pyrometer 6, a spectrometer 4 or other optical monitoring devices such as an industrial camera and the like so as to facilitate real-time monitoring. C mouth go-between is equipped with in the turning arm 7, C mouth go-between is located respectively between the bending department of turning arm and spectroscope module 5 and between the bending department of turning arm and the optical monitoring equipment, C mouth go-between is connected with the optical lens. The optical lens is an optical filter and an energy attenuation sheet, and absorbs redundant scattered light and attenuates the energy of high-power laser.
The number of the parameter monitoring components can be one or a plurality, when the number of the parameter monitoring components is a plurality, the spectroscope modules 5 in the parameter monitoring components are sequentially connected, the light inlet side of the main light channel of the spectroscope module 5 at the uppermost part is connected with the light outlet side of the focusing mirror module 3,
the light emitting side of the main light channel of the upper beam splitter module 5 is connected with the light entering side of the main light channel of the lower beam splitter module 5. The optical monitoring equipment in the parameter monitoring assembly is equipment of different types, data of different parameters can be monitored simultaneously, the number of the parameter monitoring assemblies can be increased or decreased to realize the increase or decrease of the monitoring parameters, and the requirement of more parameter monitoring is met. The light-emitting side of the main light channel of the spectroscope module 5 at the lowest part is connected with a protection mirror module 8, and a protection mirror is arranged in the protection mirror module 8, so that the beam expanding mirror module 1, the collimating mirror module 2, the focusing mirror module 3 and the spectroscope module 5 are conveniently isolated and protected from being polluted and damaged in the multi-parameter monitoring laser head operation. And the main light beam in the main light channel after being split by the beam splitter at the upper part enters the beam splitter at the lower part to continue to split so as to form a new main light beam and a split light beam, wherein the split light beam is used for parameter monitoring, and the main light beam continues to walk downwards until the light outlet side of the main light channel passing through the beam splitter module 5 at the lowest part reaches the light inlet side of the protective mirror module 8.
The beam expander module 1, the collimator module 2, the focusing lens module 3, the spectroscope module 5, the protection lens module 8 and the powder feeding nozzle 9 are detachably connected (such as bolted connection) between adjacent parts. Partial modules can be directly replaced after being damaged, so that the maintenance is convenient and the cost is saved. The beam splitter module 5, the lever arm 7 and the optical monitoring device are also detachably connected (such as a bolt connection). Besides convenient maintenance, the monitoring requirement of the required parameters can be met easily by singly exchanging the required optical monitoring equipment.
As shown in fig. 3, a nozzle height adjusting structure is disposed between the protective mirror module 8 and the powder feeding nozzle 9. The nozzle height adjusting structure comprises a hollow sleeve, the hollow sleeve is coaxially sleeved above the powder feeding nozzle, the hollow sleeve is connected with the powder feeding nozzle in a sliding fit manner, and a limit screw and a fastening screw are arranged on the hollow sleeve. The nozzle height adjusting structure is provided with a hollow sleeve which circumferentially surrounds the powder feeding nozzle 9, the hollow sleeve can slide, the powder feeding nozzle 9 can move relative to the hollow sleeve, and the powder feeding nozzle 9 can be adjusted to be downwardly stretched or upwardly retracted to a certain position through a limit screw arranged on the hollow sleeve. Thereby realizing the adjustment of the relative positions of the powder spot center and the laser spot center by adjusting the height of the powder feeding nozzle 9. When the current position is adjusted to the proper position, the adjusted current position can be fastened by the fastening screw. The preferable fastening screw is a plurality of, and a plurality of fastening screw is along the circumference evenly distributed of cavity sleeve pipe, is convenient for increase fastening effect.
Working principle:
the beam is expanded by the beam expander module, then a parallel laser beam path is formed by the collimator module, then a concentrated processing beam is formed by the focusing module and a focus is formed at the workpiece part, the processed beam passes through the parameter monitoring component, the beam splitter module forms a beam splitting beam into a main beam, and the beam splitting beam passes through the reflector to the monitoring equipment. When multiple different parameters need to be monitored simultaneously, the monitoring can be realized by adding a parameter monitoring component. The whole adopts the structural splicing design of detachable connection between the modules, when part of the modules are damaged and can not be used, the damaged modules can be directly replaced, and the parameter monitoring assembly is formed by adopting the design of detachable connection. The monitoring requirement of the required parameters can be easily realized by singly exchanging the required optical monitoring equipment. A nozzle height adjusting structure is arranged between the powder feeding nozzle and the protective mirror module. Through nozzle height adjustment structure, the position of adjustable powder feed nozzle to can adjust the relative position at powder spot center and laser facula center, can pinpoint powder spot center, can more accurate the control of going on required parameter, enable the monitoring effect better.
Finally, it should be noted that: the present utility model is not limited to the preferred embodiments, but can be modified or substituted for some of the technical features described in the above embodiments by those skilled in the art, although the present utility model has been described in detail with reference to the above embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a many parameters control laser head, includes the laser head body, laser head body from the top down is equipped with beam expander module (1), collimating mirror module (2), focusing mirror module (3) and send powder nozzle (9) in proper order, its characterized in that the laser head body still includes parameter monitoring subassembly, parameter monitoring subassembly includes spectroscope module (5), turning arm (7) and optical supervisory equipment, be equipped with the spectroscope that is the slope setting in spectroscope module (5), spectroscope module (5) have main optical channel and beam split channel, beam split channel goes out the optical side and is connected with turning arm (7), the department of bending of turning arm (7) is equipped with the speculum that is the slope setting, the light-emitting side of turning arm (7) with optical supervisory equipment's income optical side is connected, spectroscope module (5) are located focusing mirror module (3) with send between powder nozzle (9).
2. The multi-parameter monitoring laser head according to claim 1, characterized in that a protective mirror module (8) is arranged between the spectroscope module (5) and the powder feeding nozzle (9), and a protective mirror is arranged in the protective mirror module (8).
3. The multi-parameter monitoring laser head according to claim 1, wherein the number of the parameter monitoring components is a plurality, the spectroscope modules (5) in the plurality of parameter monitoring components are sequentially connected, and the light outgoing side of the main light channel of the spectroscope module (5) above is connected with the light incoming side of the main light channel of the spectroscope module (5) below.
4. A multi-parameter monitoring laser head according to claim 3, characterized in that said optical monitoring devices in said parameter monitoring assembly are different.
5. Multi-parameter monitoring laser head according to claim 4, characterized in that the optical monitoring device is a colorimetric pyrometer (6), a spectrometer (4) or an industrial camera.
6. Multi-parameter monitoring laser head according to claim 2, characterized in that a nozzle height adjustment structure is provided between the protection mirror module (8) and the powder feeding nozzle (9).
7. The multi-parameter monitoring laser head according to claim 6, wherein the nozzle height adjusting structure comprises a hollow sleeve, the hollow sleeve is coaxially sleeved above the powder feeding nozzle, the hollow sleeve is connected with the powder feeding nozzle in a sliding fit manner, and a limit screw and a fastening screw are arranged on the hollow sleeve.
8. The multi-parameter monitoring laser head according to claim 2, characterized in that the beam expander module (1), the collimator module (2), the focusing mirror module (3), the beam splitter module (5), the protection mirror module (8) and the powder feeding nozzle (9) are detachably connected between adjacent.
9. The multi-parameter monitoring laser head according to claim 8, characterized in that the beam splitter module (5), the crank arm (7) and the optical monitoring device are detachably connected adjacent to each other.
10. The multi-parameter monitoring laser head according to claim 1, characterized in that an optical lens is arranged in the crank arm (7), and the optical lens is an optical filter or an energy attenuation sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320136995.9U CN219727214U (en) | 2023-02-07 | 2023-02-07 | Multi-parameter monitoring laser head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320136995.9U CN219727214U (en) | 2023-02-07 | 2023-02-07 | Multi-parameter monitoring laser head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219727214U true CN219727214U (en) | 2023-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320136995.9U Active CN219727214U (en) | 2023-02-07 | 2023-02-07 | Multi-parameter monitoring laser head |
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| Country | Link |
|---|---|
| CN (1) | CN219727214U (en) |
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2023
- 2023-02-07 CN CN202320136995.9U patent/CN219727214U/en active Active
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