CN106735939A - A kind of laser cutting head of adjustable spot size - Google Patents
A kind of laser cutting head of adjustable spot size Download PDFInfo
- Publication number
- CN106735939A CN106735939A CN201710088999.3A CN201710088999A CN106735939A CN 106735939 A CN106735939 A CN 106735939A CN 201710088999 A CN201710088999 A CN 201710088999A CN 106735939 A CN106735939 A CN 106735939A
- Authority
- CN
- China
- Prior art keywords
- expanding system
- transmission mechanism
- lens
- motor transmission
- motor
- 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.)
- Pending
Links
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
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- 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
-
- 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
The invention discloses a kind of laser cutting head of adjustable spot size, including the joints of optical fibre, first motor transmission mechanism and the second motor transmission mechanism, the laser direction sent in the joints of optical fibre is sequentially provided with collimating mirror with optical axis, beam-expanding system microscope group and focus lamp, the beam-expanding system microscope group includes beam-expanding system plus lens, beam-expanding system biconcave lens and beam-expanding system collimation lens, the beam-expanding system plus lens and beam-expanding system collimation lens respectively with the first motor transmission mechanism, second motor transmission mechanism is connected, first motor transmission mechanism, second transmission mechanism drives the beam-expanding system plus lens and beam-expanding system collimation lens to be moved along optical axis direction respectively, so as to change the beam-expanding system plus lens and beam-expanding system collimation lens to the distance of the beam-expanding system biconcave lens.The present invention is applicable the cutting of various sheet materials, improves and uses scope.
Description
Technical field
The present invention relates to laser cutting technique field, especially a kind of laser cutting head of adjustable spot size.
Background technology
At present, laser cutting pipette tips are by converging the process equipment that laser energy is cut to sheet material, tradition cutting
Head is invariable with the focal distance ratio of focus lamp due to collimating mirror, so the spot size of final focal point is also invariable.
But the demand of the sheet material focusing spot size of different-thickness and material is different, the requirement for cutting thin plate is light
Spot is small, depth of focus is short, and requirement during cutting slab is that hot spot is big, depth of focus is long.It is existing to change hot spot by changing collimating mirror distance
The cutting head of size and depth of focus, but hot spot multiplication factor is less than 2.5 times, and when slab is cut, still some are not enough.
The content of the invention
The technical problems to be solved by the invention are the defects for overcoming prior art, there is provided a kind of adjustable spot size
Laser cutting head.
The present invention solves the technical scheme that prior art problem is used：A kind of laser cutting of adjustable spot size
Head, including the joints of optical fibre, the first motor transmission mechanism and the second motor transmission mechanism, in swashing that the joints of optical fibre send
Light direction is sequentially provided with collimating mirror, beam-expanding system microscope group and focus lamp with optical axis, and the beam-expanding system microscope group is including expanding
System plus lens, beam-expanding system biconcave lens and beam-expanding system collimation lens, the beam-expanding system plus lens and beam-expanding system
Collimation lens is connected with the first motor transmission mechanism, the second motor transmission mechanism respectively, first motor transmission mechanism, second
Motor transmission mechanism drives the beam-expanding system plus lens and beam-expanding system collimation lens to be moved along optical axis direction respectively, so that
Change the beam-expanding system plus lens and beam-expanding system collimation lens to the distance of the beam-expanding system biconcave lens.
Further, first motor transmission mechanism includes motor, yielding coupling and Miniature ball screw mandrel, described micro-
Type ball screw is connected with the beam-expanding system plus lens.The Miniature ball screw mandrel, positioning precision fast with transmission speed
Height, long lifespan, non-maintaining advantage.
Further, the motor is DC servo hollow-cup motor, and the motor has starting, braking rapid, corresponding speed
The fast advantage of degree.
Further, second motor transmission mechanism is identical with the first motor transmission mechanism structure, and versatility is high.
Above-mentioned technical proposal is employed, the present invention has following beneficial effect：The present invention is by collimating mirror and focusing
Increase beam-expanding system microscope group between eyeglass, expand the distance between eyeglass by change to change the length of spot size and depth of focus
It is short, the cutting of various sheet materials is applicable, improve and use scope.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation that the present invention expands light path.
In figure：1st, the joints of optical fibre, the 2, first motor transmission mechanism, 2.1, motor, 2.2, yielding coupling, 2.3, it is miniature
Ball screw, the 3, second motor transmission mechanism, 4, collimating mirror, 5, beam-expanding system microscope group, 5.1, beam-expanding system plus lens, 5.2,
Beam-expanding system biconcave lens, 5.3, beam-expanding system collimation lens, 6, focus lamp.
Specific embodiment
In order that present disclosure is easier to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawing
The present invention is described in further detail.
The laser cutting head of a kind of adjustable spot size as shown in Figure 1, including the joints of optical fibre 1, the first motor are passed
The motor transmission mechanism 3 of motivation structure 2 and second, the laser direction sent in the joints of optical fibre 1 is sequentially provided with standard with optical axis
Straight mirror 4, beam-expanding system microscope group 5 and focus lamp 6, the beam-expanding system microscope group 5 include beam-expanding system plus lens 5.1, expand be
System biconcave lens 5.2 and beam-expanding system collimation lens 5.3, the beam-expanding system plus lens 5.1 and beam-expanding system collimation lens
5.3 are connected with the first motor transmission mechanism 1, the second motor transmission mechanism 2 respectively, the electricity of first motor transmission mechanism 1, second
Machine transmission mechanism 2 drives the beam-expanding system plus lens 5.1 and beam-expanding system collimation lens 5.3 to be moved along optical axis direction respectively
It is dynamic, so as to change the beam-expanding system plus lens 5.1 and beam-expanding system collimation lens 5.3 to the beam-expanding system biconcave lens
5.2 distance.
As shown in Fig. 2 the distance between the beam-expanding system plus lens 5.1 and beam-expanding system biconcave lens 5.2 are L1,
The distance between the beam-expanding system collimation lens 5.3 and beam-expanding system biconcave lens 5.2 are L2, by beam-expanding system microscope group 2
Light beam a diameter of D1, light beam pools hot spot and cut through focus lamp 6, a diameter of D2 of hot spot.
Test data of the invention is as follows：
| Sequence number | L1(mm) | L2(mm) | D1(mm) | D2(μm) |
| 1 | 15.29 | 169.49 | 18.34 | 131.26 |
| 2 | 12.06 | 176.51 | 33.02 | 294.41 |
| 3 | 8.84 | 179.51 | 48.28 | 895.23 |
| 4 | 7.23 | 180.45 | 56.14 | 1449.45 |
First motor transmission mechanism 2 includes motor 2.1, yielding coupling 2.2 and Miniature ball screw mandrel 2.3, miniature
Ball screw 2.3 is connected with beam-expanding system plus lens 5.1, and Miniature ball screw mandrel 2.3 drives the edge of beam-expanding system plus lens 5.1
Optical axis direction is moved up and down.The Miniature ball screw mandrel 2.3 has transmission speed fast, and positioning precision is high, long lifespan, and non-maintaining is excellent
Point.
The motor 2.1 is DC servo hollow-cup motor, and the motor has starting, braking rapidly, and corresponding speed is fast
Advantage.
Second motor transmission mechanism 3 is identical with the structure of the first motor transmission mechanism 2, and versatility is high.
Operation principle of the invention is as follows：First motor transmission mechanism 2 and the second motor transmission mechanism 3 drive beam-expanding system
Plus lens 5.1 and beam-expanding system collimation lens 5.3 are moved up and down along optical axis direction, so as to change beam-expanding system plus lens
5.1 and beam-expanding system collimation lens 5.3 to beam-expanding system biconcave lens 5.2 distance, so as to change through beam-expanding system mirror
The diameter D1 of the light beam of group.When beam diameter D1 changes are big, spot diameter D2 becomes big, and depth of focus is elongated；When beam diameter D1 diminishes
When, spot diameter D2 diminishes, and depth of focus shortens.Therefore, the present invention meets wanting for different plates cutting by adjusting spot size
Ask.
Particular embodiments described above, has been carried out further in detail to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail bright, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., should be included in guarantor of the invention
Within the scope of shield.
Claims (4)
1. a kind of laser cutting head of adjustable spot size, including the joints of optical fibre（1）, the first motor transmission mechanism（2）With
Second motor transmission mechanism（3）, it is characterised in that in the joints of optical fibre（1）The laser direction for sending with optical axis ground successively
It is provided with collimating mirror（4）, beam-expanding system microscope group（5）And focus lamp（6）, the beam-expanding system microscope group（5）Converged including beam-expanding system
Lens（5.1）, beam-expanding system biconcave lens（5.2）With beam-expanding system collimation lens（5.3）, the beam-expanding system plus lens
（5.1）With beam-expanding system collimation lens（5.3）Respectively with the first motor transmission mechanism（2）, the second motor transmission mechanism（3）Even
Connect, first motor transmission mechanism（2）, the second motor transmission mechanism（3）The beam-expanding system plus lens is driven respectively
（5.1）With beam-expanding system collimation lens（5.3）Moved along optical axis direction, so as to change the beam-expanding system plus lens（5.1）
With beam-expanding system collimation lens（5.3）To the beam-expanding system biconcave lens（5.2）Distance.
2. the laser cutting head of a kind of adjustable spot size according to claim 1, it is characterised in that：First electricity
Machine transmission mechanism（2）Including motor（2.1）, yielding coupling（2.2）With Miniature ball screw mandrel（2.3）, the Miniature ball silk
Bar（2.3）With the beam-expanding system plus lens（5.1）It is connected.
3. the laser cutting head of a kind of adjustable spot size according to claim 2, it is characterised in that：The motor
（2.1）It is DC servo hollow-cup motor.
4. the laser cutting head of a kind of adjustable spot size according to claim 2, it is characterised in that：Second electricity
Machine transmission mechanism（3）With first motor transmission mechanism（2）Structure is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710088999.3A CN106735939A (en) | 2017-02-20 | 2017-02-20 | A kind of laser cutting head of adjustable spot size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710088999.3A CN106735939A (en) | 2017-02-20 | 2017-02-20 | A kind of laser cutting head of adjustable spot size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106735939A true CN106735939A (en) | 2017-05-31 |
Family
ID=58957625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710088999.3A Pending CN106735939A (en) | 2017-02-20 | 2017-02-20 | A kind of laser cutting head of adjustable spot size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106735939A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284042A (en) * | 2017-08-15 | 2017-10-24 | 镇江金海创科技有限公司 | Dynamic focusing test device and laser marking machine |
| CN110198794A (en) * | 2017-06-01 | 2019-09-03 | 大族激光科技产业集团股份有限公司 | Laser cleaning camera lens |
| CN110539069A (en) * | 2019-09-20 | 2019-12-06 | 南安市建泉机械科技有限公司 | Laser projector for changing spatial direction split modulation of laser focusing light spot |
| CN110560896A (en) * | 2019-08-23 | 2019-12-13 | 大族激光科技产业集团股份有限公司 | laser welding device and welding method thereof |
| CN110681992A (en) * | 2019-10-31 | 2020-01-14 | 华中科技大学 | Adjustable broadband laser processing optical system and processing method |
| CN111168230A (en) * | 2020-03-04 | 2020-05-19 | 济南邦德激光股份有限公司 | Focusing device and focusing method of laser cutting machine |
| CN112846489A (en) * | 2020-12-31 | 2021-05-28 | 浙江迪谱诊断技术有限公司 | Angle-adjustable laser beam expanding focusing device |
| CN113681154A (en) * | 2021-09-22 | 2021-11-23 | 广东宏石激光技术股份有限公司 | Laser cutting head with variable light spot, cutting equipment and cutting method |
| CN114178679A (en) * | 2020-09-15 | 2022-03-15 | 台达电子工业股份有限公司 | Laser processing apparatus |
| CN114559167A (en) * | 2022-02-28 | 2022-05-31 | 南京理工大学 | Laser cutting head zooms based on inverse piezoelectric effect adjusts |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011011734A1 (en) * | 2011-02-10 | 2012-08-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, arrangement and method for interference structuring of flat samples |
| CN103639590A (en) * | 2013-11-05 | 2014-03-19 | 江苏大学 | Metal sheet curvature radius adjusting method and device based on hollow beam laser shock |
| CN104570363A (en) * | 2015-02-03 | 2015-04-29 | 大族激光科技产业集团股份有限公司 | Gauss laser beam shaping method and device and precise laser micropore processing device |
| CN104678675A (en) * | 2015-03-19 | 2015-06-03 | 上海理工大学 | Optical Hilbert transform and differential operation system |
| CN105750728A (en) * | 2016-04-20 | 2016-07-13 | 华南理工大学 | Light spot changing optical scanning method and device for selective laser part processing |
| US20160368099A1 (en) * | 2015-06-19 | 2016-12-22 | Ipg Photonics Corporation | Laser cutting head with controllable collimator having movable lenses for controlling beam diameter and/or focal point location |
| CN206455309U (en) * | 2017-02-20 | 2017-09-01 | 常州特尔玛枪嘴有限公司 | A kind of laser cutting head of adjustable spot size |
-
2017
- 2017-02-20 CN CN201710088999.3A patent/CN106735939A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011011734A1 (en) * | 2011-02-10 | 2012-08-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, arrangement and method for interference structuring of flat samples |
| CN103639590A (en) * | 2013-11-05 | 2014-03-19 | 江苏大学 | Metal sheet curvature radius adjusting method and device based on hollow beam laser shock |
| CN104570363A (en) * | 2015-02-03 | 2015-04-29 | 大族激光科技产业集团股份有限公司 | Gauss laser beam shaping method and device and precise laser micropore processing device |
| CN104678675A (en) * | 2015-03-19 | 2015-06-03 | 上海理工大学 | Optical Hilbert transform and differential operation system |
| US20160368099A1 (en) * | 2015-06-19 | 2016-12-22 | Ipg Photonics Corporation | Laser cutting head with controllable collimator having movable lenses for controlling beam diameter and/or focal point location |
| CN105750728A (en) * | 2016-04-20 | 2016-07-13 | 华南理工大学 | Light spot changing optical scanning method and device for selective laser part processing |
| CN206455309U (en) * | 2017-02-20 | 2017-09-01 | 常州特尔玛枪嘴有限公司 | A kind of laser cutting head of adjustable spot size |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110198794A (en) * | 2017-06-01 | 2019-09-03 | 大族激光科技产业集团股份有限公司 | Laser cleaning camera lens |
| CN110198794B (en) * | 2017-06-01 | 2022-02-18 | 大族激光科技产业集团股份有限公司 | Laser cleaning lens |
| CN107284042A (en) * | 2017-08-15 | 2017-10-24 | 镇江金海创科技有限公司 | Dynamic focusing test device and laser marking machine |
| CN110560896A (en) * | 2019-08-23 | 2019-12-13 | 大族激光科技产业集团股份有限公司 | laser welding device and welding method thereof |
| CN110539069B (en) * | 2019-09-20 | 2021-03-16 | 宁夏荣光电节能科技实业有限公司 | Laser projector for changing spatial direction split modulation of laser focusing light spot |
| CN110539069A (en) * | 2019-09-20 | 2019-12-06 | 南安市建泉机械科技有限公司 | Laser projector for changing spatial direction split modulation of laser focusing light spot |
| CN110681992A (en) * | 2019-10-31 | 2020-01-14 | 华中科技大学 | Adjustable broadband laser processing optical system and processing method |
| CN110681992B (en) * | 2019-10-31 | 2024-02-02 | 华中科技大学 | Adjustable broadband laser processing optical system and processing method |
| CN111168230A (en) * | 2020-03-04 | 2020-05-19 | 济南邦德激光股份有限公司 | Focusing device and focusing method of laser cutting machine |
| CN111168230B (en) * | 2020-03-04 | 2022-03-04 | 济南邦德激光股份有限公司 | Focusing device and focusing method of laser cutting machine |
| CN114178679A (en) * | 2020-09-15 | 2022-03-15 | 台达电子工业股份有限公司 | Laser processing apparatus |
| CN112846489A (en) * | 2020-12-31 | 2021-05-28 | 浙江迪谱诊断技术有限公司 | Angle-adjustable laser beam expanding focusing device |
| CN113681154A (en) * | 2021-09-22 | 2021-11-23 | 广东宏石激光技术股份有限公司 | Laser cutting head with variable light spot, cutting equipment and cutting method |
| CN114559167A (en) * | 2022-02-28 | 2022-05-31 | 南京理工大学 | Laser cutting head zooms based on inverse piezoelectric effect adjusts |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106735939A (en) | A kind of laser cutting head of adjustable spot size | |
| CN105081586B (en) | A kind of laser processing and device | |
| CN104570363A (en) | Gauss laser beam shaping method and device and precise laser micropore processing device | |
| CN104836114B (en) | A kind of fast and slow axis beam quality homogenizer of semiconductor laser | |
| CN101323053A (en) | Femtosecond laser microsphere perforating method and apparatus | |
| CN106773025B (en) | Focusing lens and lens vibrating type laser scanning system | |
| CN103399381A (en) | Optical fiber laser outputting head | |
| CN107065155A (en) | A kind of laser cleaning varifocal optical unit and laser cleaner | |
| CN206455309U (en) | A kind of laser cutting head of adjustable spot size | |
| CN112008239A (en) | Spiral scanning laser processing device and processing method | |
| CN112872595B (en) | Optical fiber end face laser polishing method | |
| CN105189017B (en) | Equipment for producing the laser beam with linear intensity distribution | |
| CN207198397U (en) | A kind of coupled system that more branch semiconductor lasers are coupled into simple optical fiber | |
| CN106646745B (en) | Optical fiber cutting method | |
| CN2566291Y (en) | Semiconductor laser light beam shaping device | |
| CN104865646A (en) | High-power optical collimator | |
| CN102436066B (en) | Method and device for adjusting internal/external diameters of hollow beams | |
| CN107052570A (en) | A kind of laser precision machining device | |
| CN107807451B (en) | Portable variable focal length optical system | |
| CN103465471B (en) | Laser package method and device | |
| CN107285647B (en) | Optical fiber surface processing device | |
| CN103885186B (en) | A kind of based on prism to and cylindrical mirror disappear astigmatic bundle orthopedic systems | |
| CN203838413U (en) | Anastigmatic light beam shaping system based on prisms and cylindrical mirror | |
| CN205464805U (en) | Laser wire stripping machine and cutting device thereof | |
| CN206020825U (en) | A kind of semiconductor laser optics beam merging apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |