CN107096769A - A kind of laser cleaning equipment - Google Patents
A kind of laser cleaning equipment Download PDFInfo
- Publication number
- CN107096769A CN107096769A CN201710419252.1A CN201710419252A CN107096769A CN 107096769 A CN107096769 A CN 107096769A CN 201710419252 A CN201710419252 A CN 201710419252A CN 107096769 A CN107096769 A CN 107096769A
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- Prior art keywords
- laser
- receiving space
- mirror
- speculum
- laser beam
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laser Surgery Devices (AREA)
Abstract
The invention discloses a kind of laser cleaning equipment, it includes：Shell, control device, generating device of laser, light-emitting window, optical path adjustment device；Have one path channels are set along receiving space length direction in the shell；Speculum is set in the input of path channels, optical path adjustment device is arranged on the front portion of receiving space for adjusting the laser optical path of the generating device of laser transmitting and being directed to the focus lamp；The optical path adjustment device includes mirror assembly, rotating mirror and inclined mirror；The mirror assembly receives the laser beam that generating device of laser emits and reflexes to rotating mirror, laser beam is reflexed into inclined mirror so that so that laser beam vertically reflexes to the focus lamp, the technology can realize the volume for reducing cleaning equipment under the adjustment of rotating mirror.
Description
Technical field
The present invention relates to optical touchless impurity cleaning technique field, especially a kind of laser cleaning equipment.
Background technology
Laser cleaning is a kind of untouchable, safety and environmental protection cleaning method, with without grinding, noncontact, without fuel factor
With suitable for cleaning characteristicses such as various materials, it is to avoid conventional clean industry largely uses discharge of the water-soluble washing agent to environment
Pollution problem, while it also avoid largely using inflammable and explosive and poisonous and harmful cleaning agent to the harm of health and generation fire
Risk of calamity safety etc., meets the requirement of green manufacturing.
Laser cleaning equipment existence and stability is poor, service life is short, the unreasonable structure bodily form big, control operation complicated and time consumption
Long the problem of.
Therefore, above-mentioned technical problem needs a kind of new technology to solve.
The content of the invention
The present invention proposes a kind of laser cleaning rifle to overcome the deficiencies in the prior art, it is therefore intended that reduce cleaning device
Size, while solving the problem of control is cumbersome.
In order to solve above-mentioned technical problem, on the one hand basic technical scheme proposed by the present invention is：
A kind of laser cleaning equipment, including：
One shell, with receiving space；
One control device, is placed in the receiving space；
One generating device of laser, is arranged in the receiving space；
One light-emitting window, sets focus lamp at the receiving space front end, the light-emitting window；
One optical path adjustment device, is arranged on the laser that the front portion of receiving space is used to adjust the generating device of laser transmitting
Light path is simultaneously directed to the focus lamp；
The optical path adjustment device includes mirror assembly, rotating mirror and inclined mirror；
Wherein, the mirror assembly receives laser beam that generating device of laser emits and reflexes to rotary reflection
Mirror, inclined mirror is reflexed to so that laser beam vertically reflexes to the focusing under the adjustment of rotating mirror by laser beam
Mirror.
Further, have one path channels are set along receiving space length direction in the receiving space；
Speculum is set in the input of path channels, the speculum is used for producing generating device of laser with the light
In the laser reflection of paths at an angle to the path channels, and make it that laser is parallel with path channels；
It is the mirror assembly in the output end of path channels, the mirror assembly is by laser reflection to rotary reflection
Mirror.
Further, the mirror assembly includes：
First speculum, for receiving, reflex reflector reflection laser beam；
Second speculum, for receiving, reflecting the laser beam that the first speculum is reflected back；And
3rd speculum, for receiving the laser beam of the second speculum reflection and reflexing to the rotating mirror.
Further, the rotating mirror connection one can produce the motor of rotary motion, and the motor is arranged on institute
State in receiving space；
Laser beam after rotating mirror adjustment is reflected from inclined mirror to the focus lamp, should be by tilting
The diameter parallel of the laser beam that speculum is reflected and the motor.
Further, the inclined mirror tilts a ° setting.
Further, the control device includes control panel and starter；
Wherein, the output end connection generating device of laser and motor of the control panel, an input of the control panel
Connect the starter.
Further, the shell has：
One top, with the first receiving space；
One bottom, with the second receiving space；
The upper and lower part is connected, and forms T-type structure；
Side sets grip part and handle portion respectively before and after the bottom；
The top, bottom, grip part and handle portion formation gun type of gas burner.
Further, the optical path adjustment device and path channels are located in first receiving space on the top；
The generating device of laser is located in the second receiving space of the bottom；
Wherein, second receiving space is communicated with path channels, and in second receiving space and path channels corner
Place sets the speculum.
Further, the starter is arranged at handle portion, and the starter includes being arranged on handle portion inner chamber
Trigger and partial denudation being used on the outside of handle portion for being electrically connected with the control panel triggers the triggering
The trigger that device is connected.
Further, the control panel connects a display, and the display is arranged on the outside on top.
The beneficial effects of the invention are as follows：
Technical scheme, including to the optical path adjustment device that laser pipeline is adjusted, the light path adjustment dress
Put including mirror assembly, rotating mirror and inclined mirror；The mirror assembly receives generating device of laser and launched
The laser beam that comes simultaneously reflexes to rotating mirror, laser beam reflexed into inclined mirror under the adjustment of rotating mirror so that
Obtain laser beam and vertically reflex to the focus lamp.Laser is reflexed into light path by path channels by speculum by this technology to adjust
Engagement positions are simultaneously projected, than traditional laser cleaning equipment, and the actuating unit of use tails off, and volume diminishes.
Brief description of the drawings
Fig. 1 is a kind of sectional view of laser cleaning equipment of the invention；
Fig. 2 is Fig. 1 partial schematic diagram；
Fig. 3 is one of structural representation of optical path adjustment device；
Fig. 4 is the two of the structural representation of optical path adjustment device；
Fig. 5 is light path stroke schematic diagram；
Fig. 6 is shell structure schematic diagram.
Embodiment
Below with reference to accompanying drawing 1 to 6, the present invention is described further, but the protection of the present invention should not be limited with this
Scope.
Reference picture 1 and accompanying drawing 2, a kind of laser cleaning equipment, including：
One shell 1, with receiving space 11；One control device 2, is placed in the receiving space 11；One laser occurs
Device 3, is arranged in the receiving space 11；One light-emitting window 4, is set at the front end of receiving space 11, the light-emitting window 4
Focus lamp 7；One optical path adjustment device 5, being arranged on the front portion of receiving space 11 is used to adjust what the generating device of laser 3 was launched
Laser optical path is simultaneously directed to the focus lamp 7；The optical path adjustment device 5 includes mirror assembly 51, the and of rotating mirror 52
Inclined mirror 53；
Wherein, the mirror assembly 51 receives laser beam that generating device of laser 3 emits and to reflex to rotation anti-
Mirror 52 is penetrated, laser beam is reflexed into inclined mirror 53 with so that laser beam is vertically reflexed under the adjustment of rotating mirror 52
The focus lamp 7.
It should be appreciated that in the present embodiment, the structure of rotating mirror 52, inclined mirror 53 and the formation of focus lamp 7, energy
Enough realize projects laser beam perpendicular to focus lamp 7.The stroke for having lacked light path drops in the technology, reduces light path adjustment shape structure,
Thus reduce the volume of whole laser cleaning equipment.
In addition, having the path channels 12 set along the length direction of receiving space 11 in the receiving space 11；
The input of path channels 12 sets speculum 6, and the speculum 6 leads to for produce generating device of laser 3 with the light path
In the laser reflection of road 12 at an angle to the path channels 12, and make it that laser is parallel with path channels 12；In light path
The output end of passage 12 is the optical path adjustment device 5, and the optical path adjustment device 5 is by the focus lamp 7 of laser reflection to light-emitting window 4
Place.
In the present embodiment, path channels 12 be arranged in parallel with the direction of vertical light-emitting window 4, and in the defeated of path channels 12
Enter end and one speculum 6 is set, the laser reflection that generating device of laser 3 is sent is to path channels 12, and by path channels 12
Export to optical path adjustment device 5.This technology ensure that the use of laser cleaning equipment, and it is sharp to reduce tradition to a certain extent
The volume of light cleaning device.
In a particular application, the generating device of laser 3 and path channels 12 are located at an angle, the light path adjustment
Device 5 is located at the top of the output end of path channels 12.Optical path adjustment device 5, path channels 12 and generating device of laser 3 are according to upper
In under orientation set, the design cause laser cleaning equipment formation one new arrangement, be conducive to laser cleaning equipment
Use, and reduce volume to a certain extent.Specifically, the speculum 6 and the input angle at 45 ° of path channels 12 are set
Put, and the minute surface of the speculum 6 is downward.Meanwhile, the laser that generating device of laser 3 is projected is vertically arranged with path channels 12,
And the laser projected and the speculum 6 setting at 45 °.
Critically important, in certain embodiments, the optical path adjustment device 5 is the adjustable optical path adjustment device of light path.
I.e. the optical path adjustment device 5 can change the light path output of laser.I.e. in the present embodiment, it is real by the rotating mirror 52
Laser beam vertical focusing mirror 7, which is projected, now to be adjusted so as to light path.
Referring to Fig. 3 to Fig. 5, two figure shows the structural representation of optical path adjustment device 5.The optical path adjustment device 5
Including mirror assembly 51, rotating mirror 52, inclined mirror 53, motor 55 and pedestal 54.
Explanation is needed, the mirror assembly 51 includes the first speculum 511, and for receiving, reflex reflector 6 reflects
Laser beam；Second speculum 512, for receiving, reflecting the laser beam that the first speculum 511 is reflected back；And the 3rd is anti-
Mirror 513 is penetrated, for receiving the laser beam of the second speculum 512 reflection and reflexing to the rotating mirror 52.Wherein, the institute
The output end that the first speculum 511 is located at the path channels 12 is stated, the laser beam for receiving the reflection of speculum 6.In this reality
Apply in example, the adjustment of light path is realized using three speculums, naturally it is also possible to select the speculum of varying number as needed.
In the present embodiment, the rotating mirror 52 can produce the motor 55 of rotary motion by one.The motor 55
It is arranged in the receiving space 11, the motor 55 is connected with the control device 2, and motor 55 is realized by control device 2
Rotation, with this realize rotating mirror 52 angle rotate control, in the present embodiment, wherein the rotating mirror 52 is set
Positive and negative rotation is 10 °
Inclined mirror 53 is arranged on the pedestal 54 in receiving space 11, the first speculum 511, the second speculum 512
All it is arranged on pedestal 54 with the 3rd speculum 513, wherein motor 55 is also disposed on pedestal 54.Wherein, described light
Paths 12 are arranged on pedestal 54.45 ° of 53 preferred angled of inclined mirror, is also not limited to 45 °, can use it certainly
His angle is set, as long as ensure that rotating mirror 52 and the inclined mirror 53 by the vertical directive focus lamp 7 of laser beam i.e.
Can.
Further, in certain embodiments, the laser that generating device of laser 3 is sent is vertical with the path channels 12,
Therefore, the speculum 6 is set in the described input corner of path channels 12 with 45 ° of angle, with this by laser reflection
To path channels 12, and cause the laser and the level of path channels 12；The motor 55 is parallel with the path channels 12 to be set
Put.The embodiment, the overall volume of cleaning equipment can be reduced as far as possible in the technical program.
Light path reflects stroke:
Laser beam is sent by generating device of laser 3, laser beam is reflexed to path channels by directive speculum 6 by speculum 6
In 12, and the first speculum 511 is exposed to, laser beam is reflexed to the second speculum 512, the second reflection by the first speculum 511
Laser beam is reflexed to the 3rd speculum 513 by mirror 512, and laser beam is reflexed to rotating mirror 52 by the 3rd speculum 513, in electricity
In the presence of machine 55, the angle of rotating mirror 52 is adjusted so that laser beam is reflected onto inclined mirror 53, and ensures by inclining
Plane where the laser beam vertical focusing mirror 7 that oblique reflection mirror 53 reflects is projected.
As a result of rotating mirror 52, focus lamp 7 and inclined mirror 53 in this technology, it is ensured that light path it is vertical
Set, its is simple in construction, and small volume, realizes the Miniaturization Design of whole laser cleaning equipment.
In certain embodiments, the control device 2 includes control panel 21 and starter 22；Wherein, the control
The output end connection generating device of laser 3 and motor 55 of panel 21, the input connection of the control panel 21 is described to start dress
Put 22.The present embodiment, the effect of starter 22 is that by controlling the Laser emission of generating device of laser 3, that is, works as startup
During described starter 22, the starter 22 will export an electric signal to control panel 21, and control panel 21 is according to electricity
Signal controls the generating device of laser 3 to send laser.In addition, control panel 21 controls the rotation of the motor 55, to control
The reflection angle of rotating mirror 54.
Reference picture 1 and Fig. 6, the shell 1 have：Top 13, it has the first receiving space 111；And bottom 14, its
With the second receiving space 112；The top 13 is connected with bottom 14, and forms T-type structure；The side point before and after the bottom 14
She Zhi not grip part 15 and handle portion 16；The top 13, bottom 14, grip part 15 and the formation gun type of gas burner of handle portion 16.The knot
Structure compact conformation, on the one hand conveniently takes, is on the other hand filled with the optical path adjustment device 5, path channels 12 and laser
The position setting for putting 3 matches, and can greatly reduce the appearance and size of equipment.
It should be appreciated that in the present embodiment, the receiving space 112 of the first receiving space 111 and second forms institute
State receiving space 11.The receiving space 112 of first receiving space 111 and second is into T-type structure.
In specific application, the optical path adjustment device 5 and path channels 12 are located at the first of the top 13 and housed
In space 111；The generating device of laser 3 is located in the second receiving space 112 of the bottom 14；Path channels 12 are located at institute
State the bottom of the first receiving space 111, and connected with the second described receiving space 112, and second receiving space 112 with
The corner of path channels 12 sets the speculum 6.
First receiving space 111 is connected with the light-emitting window 4, and an eyeglass is set at light-emitting window 4, sharp for allowing
Light is projected.Optical path adjustment device 5 is located at the front portion of the first receiving space 111, and close with the light-emitting window 4, in first receipts
The end for holding space 111 is control panel 21.
It should be noted that in the present embodiment, described bottom 14 is located at the centre position on the top 13, in bottom 14
Front and rear sides are grip part 15 and handle portion 16 respectively.So cause grip part 15 and handle portion 16 be all located at top 13 just under
Side, can't protrude the both sides on top 13, it is ensured that the structure of whole equipment is more compact.
When concrete application, have between the grip part 15 and bottom 14 and between handle portion 16 and bottom 14
Space, provides the position for placing hand when convenient use.It is worth noting that, the profile of the handle portion 16 and gun handle
It is similar.
In certain embodiments, starter 22 is arranged on the position of handle portion 16, and real using trigger triggering mode
The now running of the starter 22.
Specifically, starter 22 is arranged at handle portion 16.The starter 22 includes being arranged on the inner chamber of handle portion 16
The trigger 221 and partial denudation that are used to be electrically connected with the control panel 21 the outside of handle portion 16 be used for trigger
The trigger 222 that the trigger 221 is connected.The trigger 222 is contacted with the starting switch of described trigger 221, works as pressing
The starting switch of the trigger 221 can be touched during trigger 222, control is realized with this.Certainly, trigger 221 herein and pull
Machine 222 is more common device, in the present embodiment without repeating.But, can using which in laser cleaning equipment
Crawl triggering and continuous trigger are realized, greatly facilitates and uses.In order to preferably be protected to handle portion 16, in the handle portion
Handle 17 is protected in 16 be internally provided with.
In certain embodiments, the control panel 21 connects a display 8, and the display 8 is arranged on the outer of top 13
Side.It can be used in entering the operating instructions by the display 8, realize the control to the laser cleaning equipment.
Detailed, the generating device of laser 3 is arranged in the second receiving space 112 of bottom 14.The laser is filled
The laser head position for putting 3 is provided with laser head case 31, and the path the week side of boss of the laser sent in laser head is provided with laser set
Cylinder 32.Certainly, in the present embodiment, the laser generator commonly used in laser cleaning technique can be used to carry out.
The laser cleaning equipment is carried for convenience, is provided with the upper end both sides of the shell 1 for being lanyard rope etc.
To be convenient for carrying.
In a word, control panel 21, display 8, optical path adjustment device 5 are arranged on the top of whole equipment, and bottom 14 is placed
The generating device of laser 3, is grip part 15 and handle portion 16 respectively in the front and rear sides of bottom 14, and the He of the top 13
Bottom 14 forms gun type of gas burner, convenient use into T-type structure, the total.Using trigger triggering mode, continuous touch can be achieved
Hair or crawl triggering employ rotating mirror 52, focus lamp 7 and inclined mirror 53, are made by the adjustment of rotating mirror 52
Inclined mirror 53 reflex to inclined mirror 53 laser beam can perpendicular to focus lamp 7 outwards launch.The technology can
Realize the volume for reducing cleaning equipment.Stability is good when in use for laser cleaning equipment, long lifespan, good appearance, compact conformation
Small in volume, control operation is simple, takes short.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in embodiment disclosed and described above, to the present invention's
Some modifications and changes should also be as falling into the scope of the claims of the present invention.Although in addition, being used in this specification
Some specific terms, but these terms are merely for convenience of description, do not constitute any limitation to the present invention.
Claims (10)
1. a kind of laser cleaning equipment, including：
One shell (1), with receiving space (11)；
One control device (2), is placed in the receiving space (11)；
One generating device of laser (3), is arranged in the receiving space (11)；
One light-emitting window (4), positioned at the receiving space (11) front end, light-emitting window (4) place sets focus lamp (7)；
One optical path adjustment device (5), being arranged on the front portion of receiving space (11) is used to adjust the generating device of laser (3) transmitting
Laser optical path and be directed to the focus lamp (7)；It is characterized in that：
The optical path adjustment device (5) includes mirror assembly (51), rotating mirror (52) and inclined mirror (53)；
Wherein, the mirror assembly (51) receives laser beam that generating device of laser (3) emits and to reflex to rotation anti-
Mirror (52) is penetrated, reflexes to inclined mirror (53) to cause laser beam vertical by laser beam under the adjustment of rotating mirror (52)
Reflex to the focus lamp (7).
2. a kind of laser cleaning equipment as claimed in claim 1, it is characterised in that：
Have one path channels (12) are set along receiving space (11) length direction in the receiving space (11)；
Speculum (6) is set in the input of path channels (12), the speculum (6) is used to produce generating device of laser (3)
With in the path channels (12) laser reflection at an angle to the path channels (12), and causing laser and light path
Passage (12) is parallel；
It is the mirror assembly (51) in the output end of path channels (12), the mirror assembly (51) extremely revolves laser reflection
Turn speculum (52).
3. a kind of laser cleaning equipment as claimed in claim 2, it is characterised in that the mirror assembly (51) includes：
First speculum (511), for receiving, reflex reflector (6) reflection laser beam；
Second speculum (512), for receiving, reflecting the laser beam that the first speculum (511) is reflected back；And
3rd speculum (513), for receiving the laser beam of the second speculum (512) reflection and reflexing to the rotating mirror
(52)。
4. a kind of laser cleaner as claimed in claim 3, it is characterised in that：
Rotating mirror (54) connection one can produce the motor (55) of rotary motion, and the motor (55) is arranged on described
In receiving space (11)；
Laser beam after the rotating mirror (52) adjustment is reflected from inclined mirror (52) to the focus lamp (7),
The diameter parallel of the laser beam and the motor (55) that should be reflected by inclined mirror (52).
5. a kind of laser cleaner as described in one of Claims 1-4, it is characterised in that:
The inclined mirror (53) tilts 45 ° of settings.
6. a kind of laser cleaner as claimed in claim 5, it is characterised in that：
The control device (2) includes control panel (21) and starter (22)；
Wherein, the output end connection generating device of laser (3) and motor (55) of the control panel (21), the control panel (21)
An input connect the starter (22).
7. a kind of laser cleaner as claimed in claim 6, it is characterised in that the shell (1) has：
One top (13), with the first receiving space (111)；
One bottom (14), with the second receiving space (112)；
The top (13) is connected with bottom (14), and forms T-type structure；
Side sets grip part (15) and handle portion (16) respectively before and after the bottom (14)；
The top (13), bottom (14), grip part (15) and handle portion (16) formation gun type of gas burner.
8. a kind of laser cleaner as claimed in claim 7, it is characterised in that:
The optical path adjustment device (5) and path channels (12) are located in first receiving space (111) of the top (13)；
The generating device of laser (3) is located in second receiving space (112) of the bottom (14)；
Wherein, second receiving space (112) communicates with path channels (12), and in second receiving space (112) and light
Paths (12) corner sets the speculum (6).
9. a kind of laser cleaner as claimed in claim 7, it is characterised in that：
The starter (22) is arranged on handle portion (16) place, and the starter (22) includes being arranged on handle portion (16) inner chamber
The use on the outside of handle portion (16) of trigger (221) and partial denudation for being used to be electrically connected with the control panel (21)
In the trigger (222) for triggering trigger (221) connection.
10. a kind of laser cleaner as claimed in claim 7, it is characterised in that：
The control panel (21) connects a display (8), and the display (8) is arranged on the outside of top (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710419252.1A CN107096769A (en) | 2017-06-06 | 2017-06-06 | A kind of laser cleaning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710419252.1A CN107096769A (en) | 2017-06-06 | 2017-06-06 | A kind of laser cleaning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107096769A true CN107096769A (en) | 2017-08-29 |
Family
ID=59660161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710419252.1A Pending CN107096769A (en) | 2017-06-06 | 2017-06-06 | A kind of laser cleaning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107096769A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109078936A (en) * | 2018-08-08 | 2018-12-25 | 武汉武钢华工激光大型装备有限公司 | A kind of self-rotary laser cleaning head and laser cleaner |
| WO2019090980A1 (en) * | 2017-11-07 | 2019-05-16 | 英诺激光科技股份有限公司 | Handheld laser cleaning instrument |
| CN110125535A (en) * | 2018-02-07 | 2019-08-16 | 上海中船电气有限公司 | Laser girth welding machine |
| CN112246782A (en) * | 2020-08-19 | 2021-01-22 | 厦门理工学院 | Laser cleaning head |
| WO2022088245A1 (en) * | 2020-10-30 | 2022-05-05 | 厦门理工学院 | Multidirectional laser cleaner |
-
2017
- 2017-06-06 CN CN201710419252.1A patent/CN107096769A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019090980A1 (en) * | 2017-11-07 | 2019-05-16 | 英诺激光科技股份有限公司 | Handheld laser cleaning instrument |
| CN110125535A (en) * | 2018-02-07 | 2019-08-16 | 上海中船电气有限公司 | Laser girth welding machine |
| CN109078936A (en) * | 2018-08-08 | 2018-12-25 | 武汉武钢华工激光大型装备有限公司 | A kind of self-rotary laser cleaning head and laser cleaner |
| CN109078936B (en) * | 2018-08-08 | 2024-03-26 | 武汉武钢华工激光大型装备有限公司 | Self-rotating laser cleaning head and laser cleaning device |
| CN112246782A (en) * | 2020-08-19 | 2021-01-22 | 厦门理工学院 | Laser cleaning head |
| WO2022088245A1 (en) * | 2020-10-30 | 2022-05-05 | 厦门理工学院 | Multidirectional laser cleaner |
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Application publication date: 20170829 |