CN202498831U - Laser marker - Google Patents
Laser marker Download PDFInfo
- Publication number
- CN202498831U CN202498831U CN2011204454486U CN201120445448U CN202498831U CN 202498831 U CN202498831 U CN 202498831U CN 2011204454486 U CN2011204454486 U CN 2011204454486U CN 201120445448 U CN201120445448 U CN 201120445448U CN 202498831 U CN202498831 U CN 202498831U
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- laser
- fiber laser
- optical fiber
- marking machine
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Abstract
The utility model discloses a laser marker that is used for high precision marking of products like an integrated circuit, a chip, and an electronic element. The laser marker comprises a fiber laser, a modulation power source, a beam expander, a scanning galvanometer system, a control system, a focusing lens and a worktable. According to the laser marker, a continuous fiber laser is used as a light source, wherein compared with a pulse fiber laser, the continuous fiber laser enables the light beam quality to be good and fine focusing to be realized, thereby obtaining high marking precision. Meanwhile, an external modulation power source mode is employed to modulate the output of the continuous fiber laser into pulse laser output with adjustable frequency, wherein the frequency can be adjusted within a range of from 1 to 5 KHz, so that not only the advantage of good light beam quality of the continuous fiber laser can be kept, but also a high peak power can be ensured. Moreover, the laser marker that has advantages of high precision, small volume, fast speed, and maintenance-free performance and the like is especially suitable for product marking with a high precision requirement.
Description
Technical field
The utility model relates to a kind of laser marking technology, is specifically related to a kind of laser marking machine.
Background technology
Laser marking be utilize the high laser beam of energy density under the control of computer to the surface of the work local irradiation; Make skin-material vaporization or generation change color rapidly; Thereby expose the deep layer material; Perhaps cause entry material generation physicochemical change and carve vestige, perhaps burn figure, words identification that the part material shows required etching.Existing laser marking machine generally comprises structures such as laser instrument, beam expanding lens, scanning galvanometer system, condenser lens, workbench and control system.In recent years along with the appearance of optical fiber laser, rely on that its volume is little, energy consumption is little, be prone to the good beam quality of the advantage, particularly optical fiber laser of heat radiation, the mark advantage of high precision, replacing conventional laser rapidly becomes main flow.Laser marking machine in the market, use mainly be pulse optical fiber.The jointed fiber laser instrument is compared with pulse optical fiber; Beam quality is more excellent; Can realize thinner focusing, thereby can obtain higher mark precision, can satisfy the requirement of high accuracy marks such as integrated circuit, chip; But the peak power of jointed fiber laser instrument is not high, has hindered it and has been applied to laser marking machine.
Summary of the invention
The utility model overcome above-mentioned difficulties with the jointed fiber laser application in laser marking machine, a kind of simple in structure, laser marking machine that precision is high, non-maintaining is provided.
For realizing above-mentioned purpose; The utility model adopts following technical proposals: a kind of laser marking machine comprises optical fiber laser, modulation power source, beam expanding lens, scanning galvanometer system, condenser lens, workbench and control system, the laser that said optical fiber laser sends; After beam expanding lens expands bundle; Get into the scanning galvanometer system, line focus lens projects is again carried out mark to workpiece to workbench under the regulation and control of control system.Said optical fiber laser is output continuously, the modulated power supply modulation of the laser of output.
Said optical fiber laser is the core of laser marking machine; It adopts the air-cooled laser diode of a plurality of small-powers as pumping source, is coupled into single laser fiber through multi-branched, with doped rare earth element (Nd; Yb) optical fiber is as laser medium, with fiber grating as resonator.
Said optical fiber laser is the continuous output optical fibre laser instrument of power output 10W-20W.
Said modulation power source is modulated optical fiber laser, and modulating frequency is 1-5KHz.
The expansion bundle multiple of said beam expanding lens is 5-10 times.
Said galvanometer scanning system is made up of two mutually perpendicular completely reflecting mirrors, galvanometer motor and galvanometer control panel.
Said condenser lens is F-θ lens, i.e. flat field condenser lens, and laser beam focuses on surface of the work through it.
Said control system is a computer control system, and the core is a mark control software.
The beneficial effect of the utility model is:
1, the utility model adopts the jointed fiber laser instrument, compares with the pulse optical fiber that uses at present, and the jointed fiber laser beam quality is more excellent, can realize thinner focusing, thereby obtains higher mark precision.But jointed fiber laser instrument, peak power are not high.The utility model is the adjustable pulse laser output of frequency 1-5KHz through external modulated light source with the jointed fiber laser modulation, has both kept the good advantage of jointed fiber laser beam quality, has guaranteed sufficiently high peak power again.
2, the utility model beam quality is near diffraction limit, and pulse recurrence frequency is high, and power output is stable, and single pulse energy fluctuate less than 1 %, thereby can realize high speed, stable laser marking, also can accurately control size, the degree of depth, the shape of hot spot.
3, the utlity model has the advantage of general optical-fiber laser mark machine: efficient is high, and electro-optical efficiency can reach 30%; Adaptability is good, can shake at height, continuous operation under the high humidity environment; No water cooling plant, non-maintaining for a long time.
Description of drawings
Fig. 1 is the laser marking machine principle schematic.
Among the figure: 1. optical fiber laser, 2. modulation power source, 3. beam expanding lens, 4. scanning galvanometer system, 5. control system, 6. condenser lens, 7. workbench.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, the laser marking machine that the utility model provides is by optical fiber laser 1, modulation power source 2; Beam expanding lens 3, scanning galvanometer system 4, control system 5; Condenser lens 6 is formed with workbench 7,, and the jointed fiber laser instrument is modulated as light source with the jointed fiber laser instrument.
As shown in Figure 1, through the optical fiber laser of modulation power source modulation, become pulse output by continuous output, pulsed light beam makes light beam obtain expanding bundle and collimation behind beam expanding lens, and light beam incides in the scanning galvanometer system that is made up of x axle and Y axle galvanometer afterwards.Scanning galvanometer produces swing fast under the control of control system, make laser beam in X, the enterprising line scanning of Y two-dimensional direction.Light beam is through being focused on the mark workpiece by the flat field focus lamp after the scanning galvanometer system.Like this, through this process continuously, tag content such as programmed in advance character, figure are just burnt and are engraved on the surface of the work.
The critical component jointed fiber laser instrument and the modulation power source of the utility model are installed on the laser marking machine of laser Science and Technology Ltd. of Guangzhou Easthome; Through mark processing to chip for cell phone; Minimum feature reaches 0.005mm; The precision that is superior to other laser marking machine greatly can satisfy the mark processing request of chip for cell phone.
The critical component jointed fiber laser instrument and the modulation power source of the utility model are installed on the laser accurate mark machine of South China Normal University's Laser Processing center development; Through mark processing to cell phone IC; Minimum feature reaches 0.006mm; The precision that is superior to other laser marking machine greatly can satisfy the mark processing request of cell phone IC.
The foregoing description is the utility model preferred implementation, but the embodiment of the utility model does not receive the restriction of the above-mentioned embodiment of being, and the substitute mode of other any equivalence is included within the protection domain of the utility model.
Claims (1)
1. a laser marking machine comprises optical fiber laser, beam expanding lens, scanning galvanometer system, condenser lens, workbench and control system, the laser that said optical fiber laser sends; After beam expanding lens expands bundle, get into the scanning galvanometer system, line focus lens projects again is to workbench; Under the regulation and control of control system, workpiece is carried out mark, it is characterized in that laser marking machine also comprises external modulation power source; Said optical fiber laser is output continuously, the modulated power supply modulation of the laser of output.
2, laser marking machine according to claim 1 is characterized in that, said optical fiber laser adopts the air-cooled laser diode of a plurality of small-powers as pumping source, is coupled into single laser fiber through multi-branched, with fiber grating as resonator.
3, laser marking machine according to claim 1 is characterized in that, said optical fiber laser is the continuous output optical fibre laser instrument of power output 10W-20W.
4, laser marking machine according to claim 1 is characterized in that, said modulation power source is modulated optical fiber laser, and modulating frequency is 1-5KHz.
5, laser marking machine according to claim 1 is characterized in that, the expansion bundle multiple of said beam expanding lens is 5-10 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204454486U CN202498831U (en) | 2011-11-11 | 2011-11-11 | Laser marker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204454486U CN202498831U (en) | 2011-11-11 | 2011-11-11 | Laser marker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202498831U true CN202498831U (en) | 2012-10-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204454486U Expired - Fee Related CN202498831U (en) | 2011-11-11 | 2011-11-11 | Laser marker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202498831U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472653A (en) * | 2013-09-27 | 2013-12-25 | 武汉锐科光纤激光器技术有限责任公司 | Novel sound and light modulator utilizing visible light for positioning |
| WO2014201743A1 (en) * | 2013-06-17 | 2014-12-24 | 深圳市杰普特电子技术有限公司 | Optical fiber laser and optical fiber laser marking system |
| CN106903301A (en) * | 2017-01-11 | 2017-06-30 | 上海理工大学 | Nanoparticle size control method and realize device |
| CN111822849A (en) * | 2019-04-22 | 2020-10-27 | 大族激光科技产业集团股份有限公司 | Laser processing system and processing method |
| CN111843245A (en) * | 2020-07-24 | 2020-10-30 | 江苏中烟工业有限责任公司 | Laser pulse punching method and device for cigarette filter |
| CN114303686A (en) * | 2020-09-30 | 2022-04-12 | 北京振兴计量测试研究所 | Crop top advantage removing device and method |
-
2011
- 2011-11-11 CN CN2011204454486U patent/CN202498831U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014201743A1 (en) * | 2013-06-17 | 2014-12-24 | 深圳市杰普特电子技术有限公司 | Optical fiber laser and optical fiber laser marking system |
| CN103472653A (en) * | 2013-09-27 | 2013-12-25 | 武汉锐科光纤激光器技术有限责任公司 | Novel sound and light modulator utilizing visible light for positioning |
| CN103472653B (en) * | 2013-09-27 | 2015-10-28 | 武汉锐科光纤激光技术股份有限公司 | A kind of novel acousto-optic modulator utilizing visible ray to locate |
| CN106903301A (en) * | 2017-01-11 | 2017-06-30 | 上海理工大学 | Nanoparticle size control method and realize device |
| CN111822849A (en) * | 2019-04-22 | 2020-10-27 | 大族激光科技产业集团股份有限公司 | Laser processing system and processing method |
| CN111822849B (en) * | 2019-04-22 | 2022-07-19 | 大族激光科技产业集团股份有限公司 | Laser processing system and processing method |
| CN111843245A (en) * | 2020-07-24 | 2020-10-30 | 江苏中烟工业有限责任公司 | Laser pulse punching method and device for cigarette filter |
| CN114303686A (en) * | 2020-09-30 | 2022-04-12 | 北京振兴计量测试研究所 | Crop top advantage removing device and method |
| CN114303686B (en) * | 2020-09-30 | 2023-10-20 | 北京振兴计量测试研究所 | Crop top dominance removing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20131111 |