CN107984080A - A kind of light channel structure for laser engraving machine - Google Patents
A kind of light channel structure for laser engraving machine Download PDFInfo
- Publication number
- CN107984080A CN107984080A CN201810016727.7A CN201810016727A CN107984080A CN 107984080 A CN107984080 A CN 107984080A CN 201810016727 A CN201810016727 A CN 201810016727A CN 107984080 A CN107984080 A CN 107984080A
- Authority
- CN
- China
- Prior art keywords
- notch turntable
- diaphragm
- light
- radial direction
- circumferencial direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
-
- 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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
Abstract
A kind of light channel structure for laser engraving machine of the invention belongs to laser-engraving technique field；The light channel structure sets gradually object lens, pin hole, diaphragm and ellipsoidal mirror along the light direction of propagation；Objective focus positions and ellipsoidal mirror the over focus position overlaps, and overlapping position sets pin hole；Collimated light beam reflexes to perifocus position in pin hole position formation point light source, then by ellipsoidal mirror, is converged to a hot spot along optical axis direction illumination objective；Diaphragm can move between pin hole and ellipsoidal mirror along optical axis direction, and the openings of sizes of diaphragm can adjust；The present invention is used for the light channel structure of laser engraving machine, and aberration can not only be eliminated from principle, improves the quality of laser beam, and with accurate control laser beam energy, change the effect of laser beam convergent angle.
Description
The application is application for a patent for invention《A kind of laser engraving machine light channel structure》Divisional application.
The original bill applying date：2017-01-11.
Original bill application number：2017100209222.
Original bill denomination of invention：A kind of laser engraving machine light channel structure.
Technical field
A kind of light channel structure for laser engraving machine of the invention belongs to laser-engraving technique field.
Background technology
Laser engraving has a wide range of applications in fields such as woodcut, stone inscription, seals.The laser engraving of high quality is, it is necessary to tight
Lattice control the quality of laser beam, eliminate the interference of aberration to the full extent；Meanwhile also accurately to control the energy of laser beam, meeting
The parameters such as poly- angle.
The content of the invention
For in laser engraving field, the technical need of laser beam quality and Parameter adjustable, the invention discloses one kind
For the light channel structure of laser engraving machine, aberration can not only be eliminated from principle, improves the quality of laser beam, and with essence
Really control laser beam can, change laser beam convergent angle effect.
The object of the present invention is achieved like this：
A kind of light channel structure for laser engraving machine, object lens, pin hole, diaphragm and ellipsoid are set gradually along the light direction of propagation
Speculum；Objective focus positions and ellipsoidal mirror the over focus position overlaps, and overlapping position sets pin hole；Collimated light beam edge
Optical axis direction illumination objective, point light source is formed in pin hole position, then reflexes to perifocus position by ellipsoidal mirror, is assembled
Into a hot spot；Diaphragm can move between pin hole and ellipsoidal mirror along optical axis direction, and the openings of sizes of diaphragm can be adjusted
It is whole.
The above-mentioned light channel structure for laser engraving machine, the openings of sizes of diaphragm can adjust, by being realized with lower structure：
The diaphragm by be coaxially disposed the window transparent plate of not pivoting, the radial direction notch turntable of pivoting and around
The circumferencial direction notch turntable composition that axis rotates；
The window transparent plate is enclosed in the first radius of radial direction and the second radius in the first ring and the second ring of circumferencial direction
Into region iuuminting, other regions are light tight；Folded central angle is between first radius and the second radiusα,αCan be by 360
Degree is divided exactly；
The radial direction notch turntable is divided into 360/ in circumferencial directionαA region, in each area, in circumferencial direction
The first ring and the second ring, it is light tight in the region iuuminting that two radiuses of radial direction surround, other regions；Two radiuses
Between folded central angle 360/αArranged in a region into arithmetic progression, maximum is no more thanα；
The circumferencial direction notch turntable is divided into 360/ in circumferencial directionαA region, in each area, in circumferencial direction
The first ring and the second ring among two rings, in the region iuuminting that the first radius of radial direction and the second radius surround,
Other regions are light tight；The distance between two rings are 360/αArranged in a region into arithmetic progression, maximum is no more than the first ring
The distance between second ring.
It is used for the light channel structure of laser engraving machine above, in the offside of window transparent plate and circumferencial direction notch turntable and half
The both sides of footpath direction notch turntable, are both provided with annular groove, and equidistantly distributed has ball in annular groove, and the ball is by ball rack
It is fixed；Window transparent plate and circumferencial direction notch turntable are made by magnetic material, and synonyms pole is staggered relatively, utilizes magnetic
Power, window transparent plate, radial direction notch turntable and circumferencial direction notch turntable are adsorbed.
It is used for the light channel structure of laser engraving machine above, window transparent plate is fixedly mounted on sleeve, has on the sleeve
Two identical straight slots being arranged in parallel, the straight slot cover 360-αThe circumference of angle；Radial direction notch turntable and circumference
Direction notch turntable side is both provided with spanner, and the spanner is stretched out from the straight slot being arranged on sleeve, pulls spanner, realizes
The rotation of radial direction notch turntable and circumferencial direction notch turntable.
360/ is equidistantly provided with the straight slotαA sipes, the through hole for being directed toward sipes both sides is provided with the spanner,
Spring is provided with through hole, the both sides of the spring are mounted on cap nut；Spring in its natural state, between two caps away from
From more than straight slot width, under compression, the distance between two caps are less than straight slot width to spring.
Beneficial effect：
Firstth, in the light channel structure that the present invention is used for laser engraving machine, due to being only provided with object lens, pin hole, diaphragm and ellipsoid
Face speculum, in addition, then mixes light source and attenuator and can form complete light path system, element is few, simple in structure；
Secondth, in the light channel structure that the present invention is used for laser engraving machine, due to having abandoned the lens arrangement in conventional light path, and
Using ellipsoidal mirror, solve the Aberration Problem that lens can not possibly overcome from principle, greatly improve the quality of laser beam,
Effectively avoid aberration light beam to carving area outside injury, so as to improve engraving quality；
3rd, since diaphragm can move between pin hole and ellipsoidal mirror along optical axis direction, laser can be changed
The irradiating angle of beam；Simultaneously as the openings of sizes of diaphragm can adjust, therefore the convergent angle of laser beam can be changed；
4th, the light channel structure for being used for laser engraving machine due to the present invention employs ellipsoidal mirror, is reflected using ellipsoid
Mirror bifocus conjugated nature, that is, utilize the property that can also be emitted from the light beam of over focus incidence from over focus, with lens arrangement or
Plane mirror or spherical reflector are compared, and realize wide-angle convergence, can not only be improved the engraving time of thick texture, and
And it can realize special engraving effect.
Brief description of the drawings
Fig. 1 is the light channel structure schematic diagram that the present invention is used for laser engraving machine.
Fig. 2 is the structure diagram of window transparent plate 31.
Fig. 3 is the structure diagram of radial direction notch turntable 32.
Fig. 4 is the structure diagram of circumferencial direction notch turntable 33.
Fig. 5 is the assembling structure schematic diagram of window transparent plate, radial direction notch turntable and circumferencial direction notch turntable.
Fig. 6 is the structure diagram of ball rack.
Fig. 7 is the mounting structure schematic diagram between diaphragm and sleeve.
Fig. 8 is straight slot expansion Local map.
Fig. 9 is structure change schematic diagram when spanner passes through straight slot.
In figure：1 object lens, 2 pin holes, 3 diaphragms, 31 window transparent plates, 32 radial direction notch turntables, 33 circumferencial direction notches
Turntable, 34 balls, 35 ball racks, 36 spanners, 37 springs, 38 caps, 4 ellipsoidal mirrors, 5 sleeves.
Specific embodiment
The specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
Specific embodiment one
The light channel structure for laser engraving machine of the present embodiment, schematic diagram are as shown in Figure 1.This is used for the light path of laser engraving machine
Structure sets gradually object lens 1, pin hole 2, diaphragm 3 and ellipsoidal mirror 4 along the light direction of propagation；1 focal position of object lens
Overlapped with 4 over focus position of ellipsoidal mirror, overlapping position sets pin hole 2；Collimated light beam along optical axis direction illumination objective 1,
2 position of pin hole forms point light source, then reflexes to perifocus position by ellipsoidal mirror 4, is converged to a hot spot；3 energy of diaphragm
Enough to be moved between pin hole 2 and ellipsoidal mirror 4 along optical axis direction, the openings of sizes of diaphragm 3 can adjust.
It should be noted that diaphragm 3 can move between pin hole 2 and ellipsoidal mirror 4 along optical axis direction, this area
Technical staff can realize with reference to eyeglass in zoom lens relative to the structure that shell is axially moveable, and in this application need not
It is discussed in detail.
Specific embodiment two
The light channel structure for laser engraving machine of the present embodiment, on the basis of specific embodiment one, further limits diaphragm 3
Openings of sizes can adjust, by being realized with lower structure：
The diaphragm 3 is by the window transparent plate 31 of the not pivoting that is coaxially disposed, the radial direction notch turntable of pivoting
32 and the circumferencial direction notch turntable 33 of pivoting form；
The window transparent plate 31 circumferencial direction the first ring and the second ring, in the first radius and the second radius of radial direction
The region iuuminting surrounded, other regions are light tight；Folded central angle is α between first radius and the second radius, and α can be by
360 degree divide exactly；Window transparent plate 31 is as shown in Figure 2；
The radial direction notch turntable 32 is divided into 360/ α region in circumferencial direction, in each area, in circumference side
To the first ring and the second ring, it is light tight in the region iuuminting that two radiuses of radial direction surround, other regions；Two and half
Folded central angle arranges in 360/ α region into arithmetic progression between footpath, and maximum is no more than α；Radial direction notch turntable 32
As shown in Figure 3；It should be noted that in the present invention, arranged into arithmetic progression, refer to numeral arranged according to size order after into
Arithmetic progression, but can not arrange in sequence；
The circumferencial direction notch turntable 33 is divided into 360/ α region in circumferencial direction, in each area, in circumference side
To the first ring and the second ring among two rings, in the region that the first radius of radial direction and the second radius surround thoroughly
Light, other regions are light tight；The distance between two rings arrange in 360/ α region into arithmetic progression, and maximum is no more than the
The distance between one ring and the second ring；Circumferencial direction notch turntable 33 is as shown in Figure 4.
In the present embodiment, by direction of the rotating radius notch turntable 32 and circumferencial direction notch turntable 33, make window saturating
31 transmission region of CD and 33 transmission region permutation and combination of radial direction notch turntable 32 and circumferencial direction notch turntable, change light
The openings of sizes of door screen, so as to change the convergent angle of laser beam.
Specific embodiment three
The light channel structure for laser engraving machine of the present embodiment, on the basis of specific embodiment one or specific embodiment two,
Further limit the assembling knot of window transparent plate 31, radial direction notch turntable 32 and circumferencial direction notch turntable 33 in diaphragm 3
Structure, as shown in Figure 5.
In the both sides of the offside and radial direction notch turntable 32 of window transparent plate 31 and circumferencial direction notch turntable 33,
Annular groove is provided with, equidistantly distributed has ball 34 in annular groove, and the ball 34 is fixed by ball rack 35；Window transparent plate 31
It is made with circumferencial direction notch turntable 33 by magnetic material, synonyms pole is staggered relatively, using magnetic force, by window transparent plate
31st, radial direction notch turntable 32 and circumferencial direction notch turntable 33 adsorb.
In the present embodiment, the structure diagram of ball rack 35 is as shown in fig. 6, ball 34 is put into the hole of ball rack 35,
In the direction of vertical optical axis, the position of ball 34 is limited by ball rack 35；It should be noted that ball rack 35 is needed by transparent material
Material is made, it is ensured that printing opacity.
Specific embodiment four
The light channel structure for laser engraving machine of the present embodiment, in specific embodiment one, specific embodiment two or specific implementation
On the basis of example three, the mounting structure between diaphragm 3 and sleeve 5 is further limited, as shown in Figure 7.
Window transparent plate 31 is fixedly mounted on sleeve 5, have on the sleeve 5 two it is identical be arranged in parallel it is logical
Groove, the circumference of the straight slot covering 360- α angles；Radial direction notch turntable 32 and 33 side of circumferencial direction notch turntable are all provided with
Spanner 36 is equipped with, the spanner 36 is stretched out from the straight slot being arranged on sleeve 5, is pulled spanner 36, is realized radial direction notch
The rotation of turntable 32 and circumferencial direction notch turntable 33.
Mounting structure between the present embodiment diaphragm 3 and sleeve 5, can realize radial direction notch turntable 32 and circumference side
The technical purpose being pivoted to notch turntable 33.
Specific embodiment five
The light channel structure for laser engraving machine of the present embodiment, on the basis of specific embodiment four, further limits spanner
Matching relationship between 36 and straight slot.
Wherein, 360/ α sipes is equidistantly provided with straight slot, straight slot expansion Local map is as shown in Figure 8；
The through hole for being directed toward sipes both sides is provided with the spanner 36, spring 37, the both sides of the spring 37 are provided with through hole
It is mounted on cap nut 38；In its natural state, the distance between two caps 38 are more than straight slot width to spring 37, and spring 37 is being pressed
Under contracting state, the distance between two caps 38 are less than straight slot width.
Structure change when spanner 36 is by straight slot is as shown in figure 9, it should be noted that between spring 37 and cap nut 38
Mounting means, those skilled in the art can realize, it is not necessary to introduce in further detail.
Such structure design, when can make spanner 36 by sipes, under the elastic force effect of spring 37, two caps 38 block
In sipes, the positioning of 33 circumferencial direction of pair radius direction notch turntable 32 and circumferencial direction notch turntable is realized, and then make window
Mouth transparent plate 31, radial direction notch turntable 32 and circumferencial direction notch turntable 33 are in fixed position permutation and combination.
Claims (1)
1. a kind of light channel structure for laser engraving machine, it is characterised in that set gradually object lens along the light direction of propagation（1）、
Pin hole（2）, diaphragm（3）And ellipsoidal mirror（4）；The object lens（1）Focal position and ellipsoidal mirror（4）Over focus position
Coincidence is put, overlapping position sets pin hole（2）；Collimated light beam is along optical axis direction illumination objective（1）, in pin hole（2）Position forms point light
Source, then by ellipsoidal mirror（4）Perifocus position is reflexed to, is converged to a hot spot；Diaphragm（3）Can be in pin hole（2）With
Ellipsoidal mirror（4）Between moved along optical axis direction, diaphragm（3）Openings of sizes can adjust；
Diaphragm（3）Openings of sizes can adjust, by being realized with lower structure：
The diaphragm（3）Window transparent plate by the not pivoting being coaxially disposed（31）, pivoting radial direction notch
Turntable（32）With the circumferencial direction notch turntable of pivoting（33）Composition；
The window transparent plate（31）In the first ring and the second ring of circumferencial direction, in the first radius of radial direction and the second half
The region iuuminting that footpath surrounds, other regions are light tight；Folded central angle is α between first radius and the second radius, and α can be by
360 degree divide exactly；
The radial direction notch turntable（32）360/ α region is divided into circumferencial direction, in each area, in circumference
First ring and the second ring in direction, it is light tight in the region iuuminting that two radiuses of radial direction surround, other regions；Two
Folded central angle arranges in 360/ α region into arithmetic progression between radius, and maximum is no more than α；
The circumferencial direction notch turntable（33）360/ α region is divided into circumferencial direction, in each area, in circumference
Two rings among first ring and the second ring in direction, in the region that the first radius of radial direction and the second radius surround thoroughly
Light, other regions are light tight；The distance between two rings arrange in 360/ α region into arithmetic progression, and maximum is no more than the
The distance between one ring and the second ring；
In window transparent plate（31）With circumferencial direction notch turntable（33）Offside and radial direction notch turntable（32）Both sides,
Annular groove is both provided with, equidistantly distributed has ball in annular groove（34）, the ball（34）By ball rack（35）It is fixed；Window
Transparent plate（31）With circumferencial direction notch turntable（33）It is made by magnetic material, synonyms pole is staggered relatively, using magnetic force,
By window transparent plate（31）, radial direction notch turntable（32）With circumferencial direction notch turntable（33）Absorption；
Window transparent plate（31）It is fixedly mounted on sleeve（5）On, the sleeve（5）On have two it is identical be arranged in parallel it is logical
Groove, the circumference of the straight slot covering 360- α angles；Radial direction notch turntable（32）With circumferencial direction notch turntable（33）Side
It is both provided with spanner（36）, the spanner（36）From being arranged on sleeve（5）On straight slot in stretch out, pull spanner（36）, realize
Radial direction notch turntable（32）With circumferencial direction notch turntable（33）Rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810016727.7A CN107984080B (en) | 2017-01-11 | 2017-01-11 | A kind of light channel structure for laser engraving machine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710020922.2A CN106695114B (en) | 2017-01-11 | 2017-01-11 | A kind of laser engraving machine light channel structure |
| CN201810016727.7A CN107984080B (en) | 2017-01-11 | 2017-01-11 | A kind of light channel structure for laser engraving machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710020922.2A Division CN106695114B (en) | 2017-01-11 | 2017-01-11 | A kind of laser engraving machine light channel structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107984080A true CN107984080A (en) | 2018-05-04 |
| CN107984080B CN107984080B (en) | 2019-05-03 |
Family
ID=58907488
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710020922.2A Expired - Fee Related CN106695114B (en) | 2017-01-11 | 2017-01-11 | A kind of laser engraving machine light channel structure |
| CN201810016727.7A Expired - Fee Related CN107984080B (en) | 2017-01-11 | 2017-01-11 | A kind of light channel structure for laser engraving machine |
| CN201810016728.1A Expired - Fee Related CN107984081B (en) | 2017-01-11 | 2017-01-11 | Laser engraving machine light channel structure |
| CN201810016729.6A Expired - Fee Related CN108080784B (en) | 2017-01-11 | 2017-01-11 | A kind of light channel structure towards laser engraving machine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710020922.2A Expired - Fee Related CN106695114B (en) | 2017-01-11 | 2017-01-11 | A kind of laser engraving machine light channel structure |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810016728.1A Expired - Fee Related CN107984081B (en) | 2017-01-11 | 2017-01-11 | Laser engraving machine light channel structure |
| CN201810016729.6A Expired - Fee Related CN108080784B (en) | 2017-01-11 | 2017-01-11 | A kind of light channel structure towards laser engraving machine |
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| Country | Link |
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| CN (4) | CN106695114B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112453692B (en) * | 2020-12-01 | 2022-03-29 | 强一半导体（苏州）有限公司 | MEMS probe laser etching method |
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| DE4345010A1 (en) * | 1993-12-30 | 1995-07-06 | Ni Skij Masinostroitel Nyj I | Appts. for light beam welding and soldering |
| JPH11195580A (en) * | 1997-12-25 | 1999-07-21 | Ball Semiconductor Inc | Apparatus and method for exposing semiconductors |
| JP2002258212A (en) * | 2001-03-02 | 2002-09-11 | Ricoh Co Ltd | Lighting system for projector |
| ES2381254T3 (en) * | 2002-12-05 | 2012-05-24 | Hamamatsu Photonics K.K. | Laser processing devices |
| CN101323053A (en) * | 2008-07-16 | 2008-12-17 | 上海大学 | Femtosecond laser microsphere perforating method and apparatus |
| IT1394891B1 (en) * | 2008-07-25 | 2012-07-20 | Matteo Baistrocchi | SCRIBING LASER PLANT FOR THE SURFACE TREATMENT OF MAGNETIC SIDES WITH ELLIPTICAL SECTION SPOT |
| CN204228121U (en) * | 2014-10-09 | 2015-03-25 | 无锡中科光电技术有限公司 | A kind of ellipsoidal mirror surface shape detection apparatus |
| CN104570363B (en) * | 2015-02-03 | 2018-06-01 | 大族激光科技产业集团股份有限公司 | A kind of Gaussian laser beam shaping methods and device and precise laser micropore processing device |
| CN205539738U (en) * | 2016-03-31 | 2016-08-31 | 长春博信光电子有限公司 | Beam enlarging lens |
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2017
- 2017-01-11 CN CN201710020922.2A patent/CN106695114B/en not_active Expired - Fee Related
- 2017-01-11 CN CN201810016727.7A patent/CN107984080B/en not_active Expired - Fee Related
- 2017-01-11 CN CN201810016728.1A patent/CN107984081B/en not_active Expired - Fee Related
- 2017-01-11 CN CN201810016729.6A patent/CN108080784B/en not_active Expired - Fee Related
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| EP0347213A2 (en) * | 1988-06-17 | 1989-12-20 | Hewlett-Packard Company | A grating-tuned laser |
| CN1907631A (en) * | 2004-08-06 | 2007-02-07 | 通快机床两合公司 | Laser processing head |
| US20060028834A1 (en) * | 2004-08-09 | 2006-02-09 | Miller Jack V | Hybrid fiber optic framing projector |
| CN103631017A (en) * | 2013-11-15 | 2014-03-12 | 广州市浩洋电子有限公司 | Optical system of LED (light emitting diode) variable focal imaging lamp |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108080784A (en) | 2018-05-29 |
| CN107984081B (en) | 2019-05-03 |
| CN107984080B (en) | 2019-05-03 |
| CN106695114A (en) | 2017-05-24 |
| CN106695114B (en) | 2018-05-25 |
| CN107984081A (en) | 2018-05-04 |
| CN108080784B (en) | 2019-05-28 |
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