CN207563914U - A kind of fast tunable laser optical path device - Google Patents
A kind of fast tunable laser optical path device Download PDFInfo
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- CN207563914U CN207563914U CN201721332174.3U CN201721332174U CN207563914U CN 207563914 U CN207563914 U CN 207563914U CN 201721332174 U CN201721332174 U CN 201721332174U CN 207563914 U CN207563914 U CN 207563914U
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Abstract
A kind of fast tunable laser optical path device, the device are mainly made of marble rack, beam Propagation path structure, light source, scanning galvanometer, field lens, and light source forms certain laser beam by being obtained after laser works；Beam Propagation path structure is divided into fixed optical path component and movement light path part, and fixed optical path component mainly by main optical path seat and light path sealing shroud, by screw connection, is fixed in marble rack；Movement light path part is mainly made of servo-actuated light path seat and lifting module.The device light source is fixed, and changes beam transmission direction by speculum, adjusts easy to operate during the focal length of laser and simple in structure, and light path facilitates adjusting and so that occupation area of equipment is greatly decreased.
Description
Technical field
The utility model is related to laser equipment technical field, specifically, being to be related to a kind of fast tunable laser optical path dress
It puts.
Background technology
Laser beam is generated from laser, is transmitted according to certain path and is reached our required positions, also
It is to say that the route that laser beam is passed through is referred to as laser optical path by we.
1. common light path：Laser generator and beam expanding lens 34, galvanometer, field lens（Focus lamp）In the state that is relatively fixed, laser
Beam changes laser beam spot sizes and launch angle by beam expanding lens 34, and laser beam is made to become collimated light beam injection, is scanned through
Galvanometer, by the reflection of X scan mirrors and Y scan eyeglass, by field lens（Focus lamp）Being acted on after focusing needs the product of work
On.Because of field lens（Focus lamp）The difference of focal length causes height and position of the field lens from product to differ, need at this time adjust laser with
Focus lamp to product ideal operation distance, so as to work.
2. flight light path：In order to stablize output, we can fix laser generator under normal circumstances, comparatively laser
Transmission direction be also fixed, but for demand, we are artificial takes certain modes as needed to change the biography of laser
Defeated direction makes laser transmission become a dynamic transmission.The measure being usually taken is speculum, optical fiber etc..Light source is motionless, instead
Mirror movement, focus lamp movement are penetrated, but exports optical port and always keeps stable power output, is exactly flight light path.
The shortcomings that above-mentioned laser optical path, is：When focusing, if laser and then moves, because of laser generator volume and
Weight is big, causes moving structure heavy, is unfavorable for the adjusting of focal length；The light channel structure of laser is linearly arranged, and required space is big,
The device space is caused using insufficient, occupied ground, and flight light path optical path adjusting is sufficiently complex.
Utility model content
In order to solve drawbacks described above of the existing technology, the utility model provides a kind of fast tunable laser optical path dress
It puts.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals：
A kind of fast tunable laser optical path device, the device mainly by marble rack 11, beam Propagation path structure 12,
Light source 13, scanning galvanometer 15, field lens 16 form, and beam Propagation path structure 12, light source 13, scanning galvanometer 15, field lens 16 are pacified
Loaded in marble rack 11, light source 11 mainly by being obtained after laser works, forms certain laser beam；Beam Propagation
Path structure 12 divides for fixed optical path component and moves light path part, and fixed optical path component is mainly close by main optical path seat 21 and light path
Big envelope 22,23 forms, and the two is fixed in marble rack 11, by screw connection wherein the first mirror assembly 33 passes through
Screw, disk spring and sealing ring are fixed on the dipped beam source of main optical path seat 21, and beam expanding lens 34 is installed on beam expanding lens mounting base 35
On, the second mirror assembly 30 is fixed on the distance light source of main optical path seat 21, and 90 ° of reflection seats 31 are fixed by screw and pin
In on main optical path seat 21, securing third mirror assembly 24 on described 90 ° of reflection seats 31, third mirror assembly 24 will be
The laser beam transmitted on horizontal plane is reflexed on vertical plane and is transmitted；Light path part is moved mainly by servo-actuated light path seat 26 and lifting mould
14 composition of group, servo-actuated light path seat 26 are fixed on by screw and pin on lifting module 14, and the is secured in servo-actuated light path seat 26
Four mirror assemblies 32, mirror assembly are receiving the 4th mirror assembly 32 so that laser beam reflects on original route
Continue straightline propagation after 90 °, laser beam is acted on by galvanometer 15 and field lens 16 on working face.
Further, the beam expanding lens mounting base 35 is screwed on main optical path seat 21, beam expanding lens mounting base 35
Bottom is equipped with machine-processed rice screw, the angle of fine-tuning beam expanding lens mounting base 35.
Further, it moves and is connected between light path part and fixed optical path component by organ shield 25.
The utility model compared with prior art, has the advantages that：
1. light source is fixed, beam transmission direction is changed by speculum, is adjusted easy to operate during the focal length of laser.
2. simple in structure, light path facilitates adjusting and so that occupation area of equipment is greatly decreased.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and forms the part of the application,
The illustrative embodiments and their description of the utility model are not formed for explaining the utility model to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is light path overall structure diagram.
Fig. 2,3 are optic path path structure schematic diagrames.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
The technical solution of the utility model embodiment is clearly and completely described in the attached drawing of type embodiment.Obviously, it is described
Embodiment is the part of the embodiment of the utility model, instead of all the embodiments.Based on described the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained under the premise of without creative work, all belongs to
In the range of the utility model protection.
- 3 are please referred to Fig.1, is a kind of fast tunable laser optical path device of the utility model, the device is mainly by marble
Rack 11, beam Propagation path structure 12, light source 13, scanning galvanometer 15, field lens 16 form, beam Propagation path structure 12, light
Source 13, scanning galvanometer 15, field lens 16 are mounted in marble rack 11, and light source 11 after laser works mainly by obtaining
, form certain laser beam.The light path is mainly used for the big laser of volume and weight, due to the quality weight of laser, no
Conducive to moving and adjusting, then we use the fixed mode of light source.
Beam Propagation path structure 12 divides for fixed optical path component and movement light path part, fixed optical path as shown in Figure 2,3
Component is fixed on mainly by main optical path seat 21 and light path sealing shroud 22,23 by screw connection in marble rack 11.First is anti-
The dipped beam source that mirror assembly 33 is fixed on main optical path seat 21 by screw, disk spring and sealing ring is penetrated, changes laser beam movement
Direction track can finely tune the angle of reflecting optics, so as to adjust the position of laser beam by adjusting the screw of Lens assembly.Expand
Beam mirror 34 is installed in beam expanding lens mounting base 35, and the beam expanding lens mounting base 35 is screwed on main optical path seat 21, is expanded
35 bottom of beam mirror mounting base is equipped with machine-processed rice screw, the angle of fine-tuning beam expanding lens mounting base 35.Second mirror assembly 30 is fixed
In the distance light source of main optical path seat 21, change the movement locus of laser beam again, so as to save the device space.90 ° of reflection seats
31 are fixed on by screw and pin on main optical path seat 21, and third mirror assembly 24 is secured on described 90 ° of reflection seats 31,
The laser beam transmitted in the horizontal plane is reflexed on vertical plane and transmitted by third mirror assembly 24.
Movement light path part is mainly made of servo-actuated light path seat 26 and lifting module 14.Servo-actuated light path seat 26 by screw with
Pin is fixed on lifting module 14, realization is driven to move up and down by the motor for lifting module 14.The servo-actuated light path seat
The 4th mirror assembly 32 is secured on 26, mirror assembly is receiving the 4th mirror assembly 32 so that laser beam is original
Continue straightline propagation after reflecting 90 ° on route, laser beam is acted on by galvanometer 15 and field lens 16 on working face.
It is connected between movement light path part and fixed optical path component by organ shield 25, organ shield 25 plays sealing
The effect of light path.When focusing, lifting module only needs the adjusting of distance above and below the progress of moving movement light path part, so as to complete
Focusing.
Laser optical path is mainly designed according to the transmission characteristic of laser beam, and different light path designs may result in light-emitting window
Optical quality, size and energy difference.
1. the transmission of light path：After laser beam generates at light source, when laser beam passes through the first mirror assembly 33, it is mounted on
Laser beam is all-trans by the eyeglass on 45 ° of inclined-planes, and original transmission route shape reflection in 90 °, subsequent laser beam by beam expanding lens 34,
Beam expanding lens 34 be it is a kind of by concavees lens and convex lens group into the optical system device can change the size and divergence characterization of light beam,
The collimation property of light beam can be improved so that beam diameter is consistent substantially in working range.By adjusting beam expanding lens 34
The bottom machine-processed rice screw of mounting base causes laser beam from beam expanding lens 34 centrally through laser beam is by the second mirror assembly 30
Total reflection is transmitted to third mirror assembly 24.Eyeglass in third mirror assembly 24 is by laser beam by the transmission of horizontal direction
Reflex to the transmission of vertical direction.It being reflected through the 4th mirror assembly 32, laser beam enters scanning galvanometer, so as to reach field lens,
Product operating position is acted on after focusing.
2. the sealing of light path：Light beam projects from laser and reaches operating position by the transmission of gas medium, is being transmitted across
Cheng Zhonghui is influenced by transmission medium, and undesirable transmission medium can influence working effect, we analyze each of transmission environment
Influence of a factor to light beam has used the design of clean sealing in light path is designed.The pollution to eyeglass is reduced, to effect
Remarkable effect is played in raising.When in air of the light beam by carrying dust, mist of oil, steam, light beam has portion of energy that can be absorbed,
Light beam expands angle and will be extended, so as to influence to eventually arrive at the beam quality of operating position.
1) laser beam with external environment is detached by sealing shroud 1,2 between main optical path seat 21 and laser and separated, avoided
Environmental contaminants enter in transmission channel.
2) external environment and laser beam are separated by organ shield between 90 ° of light path seats and servo-actuated light path seat 26.Wherein
Most of producer all uses stretchable protective cover to protect cavity as the light path of moving component, and diameter usually requires to be more than light
Three times of beam diameter, to avoid the transmission of light beam is interfered with.
It is the comparison of variety classes protective cover performance below
①：Shaped cover holds susceptible to gravitational forces and sagging, the also influence of very easy vibration during exercise, so as to
It can interfere with laser beam.②：The size of telescope type shield light admission port can be limited by its length, and this type institute
The lubricating oil used has the transmission of light beam after lubricating oil evaporation and seriously affects possibly into its inside.③：Organ-shaped shield
Performance be better than two kinds of shield, inside need skeletal support, and PVC skeletons are needed with leading every several foldings
Connection to part.The mode that we employ organ-shaped is protected, and maintains the cleaning of beam Propagation environment well.
3. the focus adjustment of light path：Because laser beam needs to act on product workspace after field lens focuses in laser equipment
Domain, so as to which height of the field lens from product need to be moved to obtain suitable operating distance.Then light path is divided into fixed optical path component
With movement light path part, field lens is relatively fixed with movement light path part, when laser beam is changed by horizontal direction transmission to Vertical Square
To during transmission, movement light path part moves up and down under the drive of lifting module, will not change the transmission direction of laser beam, so as to
Reach the adjusting of focal length.
It should be understood that although with reference to its illustrative embodiment, the utility model has been carried out it is particularly shown and
Description, it should be understood by those skilled in the art that without departing substantially from by the utility model as defined in the claims
Spirit and scope under conditions of, the variation of various forms and details can be carried out wherein, various embodiments can be carried out
Arbitrary combination.
Claims (3)
1. a kind of fast tunable laser optical path device, it is characterised in that：The device is mainly by marble rack, beam Propagation path
Structure, light source, scanning galvanometer, field lens composition, beam Propagation path structure, light source, scanning galvanometer, field lens are mounted on marble
In rack, light source forms certain laser beam by being obtained after laser works；Beam Propagation path structure is divided into fixed optical path
Component and movement light path part, fixed optical path component are mainly made of main optical path seat and light path sealing shroud, and the two is connected by screw
It connects, is fixed in marble rack, wherein the first mirror assembly is fixed on main optical path by screw, disk spring and sealing ring
The dipped beam source of seat, beam expanding lens are installed in beam expanding lens mounting base, and the second mirror assembly is fixed on the distance light source of main optical path seat
End, 90 ° of reflection seats are fixed on by screw and pin on main optical path seat, and third speculum is secured on described 90 ° of reflection seats
The laser beam transmitted in the horizontal plane is reflexed on vertical plane and transmitted by component, third mirror assembly；Move light path part master
It to be made of servo-actuated light path seat and lifting module, servo-actuated light path seat is fixed on by screw and pin on lifting module, is servo-actuated light
The 4th mirror assembly is secured on the seat of road, mirror assembly causes laser beam on original road in the 4th mirror assembly of receiving
Continue straightline propagation after reflecting 90 ° on line, laser beam is acted on by galvanometer and field lens on working face.
2. a kind of fast tunable laser optical path device according to claim 1, it is characterised in that：The beam expanding lens mounting base
It is screwed on main optical path seat, beam expanding lens mounting base bottom is equipped with machine-processed rice screw, the angle of fine-tuning beam expanding lens mounting base
Degree.
3. a kind of fast tunable laser optical path device according to claim 2, it is characterised in that：It moves light path part and consolidates
Determine to connect by organ shield between light path part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332174.3U CN207563914U (en) | 2017-10-16 | 2017-10-16 | A kind of fast tunable laser optical path device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332174.3U CN207563914U (en) | 2017-10-16 | 2017-10-16 | A kind of fast tunable laser optical path device |
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| CN207563914U true CN207563914U (en) | 2018-07-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389422A (en) * | 2019-07-31 | 2019-10-29 | 厦门五星珑科技有限公司 | A kind of selective laser melting optical path focusing adjustment and its adjusting method |
| CN111670374A (en) * | 2019-01-09 | 2020-09-15 | 深圳市大疆创新科技有限公司 | Distance measuring device |
-
2017
- 2017-10-16 CN CN201721332174.3U patent/CN207563914U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111670374A (en) * | 2019-01-09 | 2020-09-15 | 深圳市大疆创新科技有限公司 | Distance measuring device |
| CN110389422A (en) * | 2019-07-31 | 2019-10-29 | 厦门五星珑科技有限公司 | A kind of selective laser melting optical path focusing adjustment and its adjusting method |
| CN110389422B (en) * | 2019-07-31 | 2023-12-29 | 厦门五星珑科技有限公司 | Selective laser melting light path focusing adjusting device and adjusting method thereof |
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