CN104551385B - Optical-fiber laser processing head - Google Patents
Optical-fiber laser processing head Download PDFInfo
- Publication number
- CN104551385B CN104551385B CN201510050107.1A CN201510050107A CN104551385B CN 104551385 B CN104551385 B CN 104551385B CN 201510050107 A CN201510050107 A CN 201510050107A CN 104551385 B CN104551385 B CN 104551385B
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- CN
- China
- Prior art keywords
- optical
- laser processing
- processing head
- fiber laser
- fiber
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
Abstract
The present invention is applied to field of laser processing; a kind of optical-fiber laser processing head is provided, including the optical fiber for Laser Transmission, mirror sleeve, the lens barrel between the optical fiber and the mirror sleeve, the protective case being sheathed on the optical fiber and the outer sleeve being sheathed on the protective case；Described protective case one end is connected with the lens barrel, is provided with detachable first sealing device, and fixes the first sealing device by outer sleeve between the other end and the optical fiber.Optical-fiber laser processing head provided in an embodiment of the present invention is by the detachable first sealing device, convenient installation and maintenance is realized not only, can also reliably by the inner sealing of optical-fiber laser processing head, simultaneously by the axial direction conflict between the connected mode and each part of radial direction, prevent the loosening of part after long-term use and change light path, and the connection by radial direction so that the volume of the whole optical-fiber laser processing head reduces, and is applicable in narrow and small processing environment.
Description
Technical field
The invention belongs to field of laser processing, more particularly to a kind of optical-fiber laser processing head.
Background technology
Due to Laser Processing with high-energy, do not contact, applied range, the advantage such as machined surface effect is good laser machines
The processing mode of main flow is had become at present, and optical-fiber laser processing can be coiled with more light path, conveniently moving, processing environment will
Low feature is sought, is increasingly taken seriously, but the laser Machining head general appearance of existing employing optical-fiber laser is thick, sealing
Difference, can not persistently vibrationproof, have many problems when in use, such as profile is too thick, it is impossible to through the pore of clamp tool, be unfavorable for pacify
It is mounted in the position of narrow space；Sealing is poor, is unfavorable for processing head for a long time in the adverse circumstances that greasy dirt is serious or steam is excessive
Lower work；Can not persistently vibrationproof, then be unfavorable for that processing head works long hours in the case where fiercer operating mode is vibrated, for example, have punching
The working site of bed.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of optical-fiber laser processing head, thick to solve existing processing head profile
Greatly, can not be in the problem used in narrow and small environment.
The embodiment of the present invention is achieved in that a kind of optical-fiber laser processing head, including：
For the optical fiber of Laser Transmission, the front end of the optical fiber is provided with armouring；
Mirror sleeve, is provided with the lens set that the laser to fibre optical transmission carries out integrating, focusing in the mirror sleeve；
Lens barrel, one end of the lens barrel are connected with the armouring on the optical fiber；The other end is connected with the mirror sleeve；
The protective case being sheathed on the optical fiber, one end of the protective case are connected with the lens barrel, the other end with it is described
First sealing device is provided between optical fiber；
It is sheathed on outer sleeve on the protective case, one end of the outer sleeve and the protective case and the first sealing dress
Put and offset, the other end is fixedly connected with the lens barrel.
Further, the first sealing device includes sealing ring, the multiple left compact heap for clamping the sealing ring and the right side
Gripping block；Step, the sealing are respectively equipped with the side that the left compact heap and right gripping block are contacted with the sealing ring
Circle is in the space that two steps are formed.
Further, multiple left compact heaps and right gripping block are arranged around the optical fiber respectively.
Further, the left compact heap and right gripping block are made up of elastomeric material.
Further, the internal diameter of one end that the outer sleeve is offseted with the protective case and the first sealing device is little
In the external diameter of the armouring.
Further, carried out by pin between the protective case, the outer sleeve and the lens barrel radially connected.
Further, it is arranged with the outer sleeve for fixing the gum cover of the pin.
Further, the right-hand member of the lens barrel is offseted with the lens set.
Further, elastic spacer ring is provided between the multiple eyeglasses in the lens set.
Further, the optical-fiber laser processing head also includes the protection eyeglass that the light path along the lens set is arranged.
The embodiment of the present invention provides a kind of optical-fiber laser processing head by the detachable first sealing device, not only
Realize convenient installation and maintenance, moreover it is possible to reliable by the inner sealing of optical-fiber laser processing head, while the company by radial direction
The axial direction for connecing mode and each part is directly inconsistent, prevents the loosening of part after long-term use so that light path changes, with
And the connection by radial direction so that the volume of the whole optical-fiber laser processing head reduces, and is applicable to narrow and small processing environment
In.
Description of the drawings
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to embodiment or description of the prior art
Needed for accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can be with according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is optical-fiber laser processing head sectional view provided in an embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
As shown in figure 1, the embodiment of the present invention provides a kind of optical-fiber laser processing head 10, including the optical fiber for Laser Transmission
11st, mirror sleeve 12, the lens barrel 13 between the optical fiber 11 and the mirror sleeve 12, the protective case 14 that is sheathed on the optical fiber with
And the outer sleeve 15 being sheathed on the protective case 14.
Wherein, being provided with the mirror sleeve 12 carries out the lens set 121 integrated, focus on to the laser 111 of the transmitting of optical fiber 11；Institute
The front end for stating optical fiber is provided with armouring 112；One end of the lens barrel 13 is connected with the armouring 112 on the optical fiber, the other end and institute
State mirror sleeve 12 to connect；The protective case 14 is sheathed on the optical fiber 11, its one end is connected with the lens barrel 13, the other end and institute
State first sealing device is provided between optical fiber 11；The one end for the outer sleeve 15 being sheathed on the protective case and the protection
Set 14 and the first sealing device offset, and the other end is fixedly connected with the lens barrel 13；The protective case 14, mirror sleeve 12 with
The junction of the lens barrel 13 is respectively equipped with the second sealing device (figure is not marked)；The optical axis of the laser 111 that the optical fiber 11 sends
With the center superposition of the mirror sleeve 12, lens barrel 13 and lens set 121.
In the present embodiment, due to the presence of first and second sealing device so that the optical-fiber laser processing head is internally formed
The space of sealing, it is therefore prevented that the entrance of steam or greasy dirt etc., protects fiber end face and lens set.
As the front end of the optical fiber 11 is provided with armouring 112 so that the point diameter of optical fiber is big, rear end diameter is little, is
Optical fiber firm fixation can be needed also to be fixed a rear end part for optical fiber, then the length of the protective case 14 should
More than the length of the armouring 112；Simultaneously in order to prevent steam or greasy dirt etc. from entering, the purpose of protection fiber end face is reached, needed
Optical fiber front end is caused in sealing state, but the point diameter of optical fiber is big, rear end diameter is little, if solid in optical fiber rear end
It is fixed, it is impossible to the optical fiber of armouring 112 will be provided with through the through hole bigger with optical fiber rear end diameter so as to by optical fiber forward end seal.At this
In embodiment, the protective case 14 is sheathed on the diameter with diameter greater than the armouring 11 of the part on the optical fiber, and described
One sealing device be arranged on the protective case 14 away from the armouring 112 one end and the optical fiber between.
Specifically, the protective case 14 is opening shape structure away from one end of the armouring 11, at the opening shape structure
Step 141 is provided with, what the first sealing device was circular is arranged between the step 141 and the optical fiber 11.
Install or the later stage maintenance optical-fiber laser processing head 10 in order to convenient, the first sealing device is can
Dismountable is arranged between the optical fiber and the protective case 14.
The first sealing device includes sealing ring 161, the multiple left compact heap 162 for clamping the sealing ring 161 and many
Individual right gripping block 163；Set on the side that the left compact heap 162 and right gripping block 163 are contacted with the sealing ring 161 respectively
There is step (figure is not marked), what the step that the sealing ring 161 is located on the left compact heap 162 and right gripping block 163 was formed
In space.
Further, multiple left compact heaps 162 and right gripping block 163 are arranged around the optical fiber 11 respectively.
Further, the left compact heap 162 and right gripping block 163 are respectively 2, and the left compact heap 162 and the right side
The symmetrical setting of gripping block 163, the left compact heap 162 and right gripping block 163 are in semicircle shape respectively.
Further, in order to better seal, the left compact heap 162 and right gripping block 163 are elastomeric material
Support, such as polyurethane.
As the first sealing device is removable setting, in order to be fixed, also set outside the protective case
Outer sleeve 15 is equipped with, the interior pathway of the left end of the outer sleeve 15 is slightly larger than the external diameter of the optical fiber rear end, and is less than the armour
112 external diameter is filled, so when the optical-fiber laser processing head is installed, the outer sleeve 15 is sheathed on institute by needs in advance
State on optical fiber 11, then the armouring 112 could be installed.
Further, the first sealing device protrudes from the left side of the protective case 14, the outer sleeve 15 and institute
The left compact heap 162 for stating first sealing device offsets, so as to first sealing device described in axial restraint.In the present embodiment
In, the outer sleeve 15 can be made with elastomeric material, to increase to the first sealing device in axial pressure.
In the present embodiment, conduct is entered by pin 17 between the protective case 14 and the outer sleeve 15 and the lens barrel 13
To connection, the optical-fiber laser laser head 10 is prevented after a protracted use, the loosening that axial direction occurs.
Carry out also by pin 17 between the mirror sleeve 12 and the lens barrel 13 it is radially connected, prevent the optical-fiber laser swash
10 after a protracted use, there is the loosening of axial direction in shaven head so that lens set 121 loosens, affect the integration of laser with
Focus on.
Further, in order to prevent the pin 17 from loosening in radial direction, it is arranged with for fixing on the outer sleeve 15
State the gum cover 18 of pin 17.
In order to ensure stablizing for lens set 121, third sealing device (figure between the lens set and the lens barrel 13, is provided with
Do not show), as the lens barrel 13 is directly offseted by the third sealing device with the lens set 12, preferably can ensure
The lens set is stablized axial direction.
In the present embodiment, elastic spacer ring 122 is provided between the multiple eyeglasses in the lens set 121, prevents multiple eyeglasses
Will not damage because of hard contact when compressing.Specifically, the elastic spacer ring 122 is the trim ring with thread.
Further, the optical-fiber laser processing head 10 also includes that the protection eyeglass arranged along laser propagation direction (is schemed not
Mark), to prevent during Laser Processing, residue damages lens set 121.
Specifically, the protection eyeglass is arranged on the right-hand member of the mirror sleeve, and will by the 4th sealing device (figure is not marked)
The lens set is sealed in the mirror sleeve 12, as the protection eyeglass is the right-hand member that is directly fitted in the mirror sleeve, this reality
Apply in example, the optical-fiber laser processing head 10 also includes the protective glass bar (figure is not marked) of the fixation protection eyeglass, the guarantor
Goggle bar is sheathed in the mirror sleeve 12 with described, and its left end is radially connected by pin 17 with the lens barrel 13.
Wherein in one embodiment, the external diameter of the armouring is 13mm, and the external diameter of the lens set is 12mm, due to institute
State outside armouring between all of part on only protective case and outer sleeve, and axial direction by the way of radially connected, this
The external diameter of the optical-fiber laser processing head 10 of bright embodiment can be 20mm, and whole optical-fiber laser processing head 10 is very very thin,
Can install in the position of many narrow spaces.
The optical-fiber laser processing head 10 of the embodiment of the present invention by the detachable first sealing device, not only
Realize convenient installation and maintenance, moreover it is possible to reliable by the inner sealing of optical-fiber laser processing head 10, while by radial direction
The axial direction of connected mode and each part is directly inconsistent, prevents the loosening of part after long-term use so that light path changes,
And the connection by radial direction so that the volume of the whole optical-fiber laser processing head 10 reduces, and is applicable to narrow and small processing
In environment.
Above content is with reference to specific preferred implementation further description made for the present invention, it is impossible to assert
The present invention be embodied as be confined to these explanations.For general technical staff of the technical field of the invention,
Some equivalent substitutes or obvious modification are made on the premise of without departing from present inventive concept, and performance or purposes are identical, all should
It is considered as belonging to the scope of patent protection that the present invention is determined by the claims submitted to.
Claims (10)
1. a kind of optical-fiber laser processing head, it is characterised in that include：For the optical fiber of Laser Transmission, the front end of the optical fiber sets
There is armouring；Mirror sleeve, is provided with the lens set that the laser to fibre optical transmission carries out integrating, focusing in the mirror sleeve；Lens barrel, the lens barrel
One end be connected with the armouring on the optical fiber；The other end is connected with the mirror sleeve；The protective case being sheathed on the optical fiber, institute
The one end for stating protective case is connected with the lens barrel, is provided with first sealing device between the other end and the optical fiber；It is sheathed on described
Outer sleeve on protective case, one end of the outer sleeve are offseted with the first sealing device, and the other end is solid with the lens barrel
It is fixed to connect.
2. optical-fiber laser processing head as claimed in claim 1, it is characterised in that the first sealing device include sealing ring,
Clamp the multiple left compact heap and right gripping block of the sealing ring；The left compact heap and right gripping block are connected with the sealing ring
Step is respectively equipped with tactile side, the sealing ring is in the space that two steps are formed.
3. optical-fiber laser processing head as claimed in claim 2, it is characterised in that multiple left compact heaps and right gripping block difference ring
Arrange around the optical fiber.
4. optical-fiber laser processing head as claimed in claim 2, it is characterised in that the left compact heap and right gripping block are elasticity
Material is made.
5. optical-fiber laser processing head as claimed in claim 1, it is characterised in that the outer sleeve and the first sealing device
External diameter of the internal diameter of the one end for offseting less than the armouring.
6. optical-fiber laser processing head as claimed in claim 1, it is characterised in that the protective case, the outer sleeve and institute
State carried out by pin between lens barrel it is radially connected.
7. optical-fiber laser processing head as claimed in claim 6, it is characterised in that be arranged with for fixing on the outer sleeve
State the gum cover of pin.
8. optical-fiber laser processing head as claimed in claim 1, it is characterised in that the right-hand member of the lens barrel and the lens set phase
Support.
9. optical-fiber laser processing head as claimed in claim 1, it is characterised in that set between the multiple eyeglasses in the lens set
Flexible spacer ring.
10. optical-fiber laser processing head as claimed in claim 1, it is characterised in that the optical-fiber laser processing head also includes edge
The protection eyeglass that the light path of the lens set is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050107.1A CN104551385B (en) | 2015-01-30 | 2015-01-30 | Optical-fiber laser processing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050107.1A CN104551385B (en) | 2015-01-30 | 2015-01-30 | Optical-fiber laser processing head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104551385A CN104551385A (en) | 2015-04-29 |
| CN104551385B true CN104551385B (en) | 2017-03-29 |
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ID=53069024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510050107.1A Active CN104551385B (en) | 2015-01-30 | 2015-01-30 | Optical-fiber laser processing head |
Country Status (1)
| Country | Link |
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| CN (1) | CN104551385B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620747B (en) * | 2018-05-08 | 2020-09-18 | 中国人民解放军国防科技大学 | Laser cutting head suitable for operation in narrow space |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2637829A1 (en) * | 1988-10-14 | 1990-04-20 | Framatome Sa | METHOD FOR REMOTE WELDING OF A SLEEVE IN A TUBE, PARTICULARLY IN A NUCLEAR POWER PLANT STEAM GENERATOR |
| JPH10328869A (en) * | 1997-05-29 | 1998-12-15 | Ishikawajima Harima Heavy Ind Co Ltd | Laser beam machining head |
| JPH10328877A (en) * | 1997-05-29 | 1998-12-15 | Ishikawajima Harima Heavy Ind Co Ltd | Laser beam machining head |
| US6210864B1 (en) * | 1998-10-06 | 2001-04-03 | Presstek, Inc. | Method and apparatus for laser imaging with multi-mode devices and optical diffusers |
| JP2012187591A (en) * | 2011-03-09 | 2012-10-04 | Hitachi Zosen Corp | Laser processing head |
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2015
- 2015-01-30 CN CN201510050107.1A patent/CN104551385B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104551385A (en) | 2015-04-29 |
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