CN103117500A - Optical gate system of radiofrequency slab CO<2> laser device - Google Patents
Optical gate system of radiofrequency slab CO<2> laser device Download PDFInfo
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- CN103117500A CN103117500A CN2013100312348A CN201310031234A CN103117500A CN 103117500 A CN103117500 A CN 103117500A CN 2013100312348 A CN2013100312348 A CN 2013100312348A CN 201310031234 A CN201310031234 A CN 201310031234A CN 103117500 A CN103117500 A CN 103117500A
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- absorber
- reflective mirror
- total reflective
- water
- cooling
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Abstract
The invention discloses an optical gate system of a radiofrequency slab CO<2> laser device. The optical gate system comprises a pressure reducing valve, an electromagnetic valve, a two-station five-way reversing valve, a total reflector and an absorber; the total reflector is provided with a pneumatic control system, the absorber is positioned in an optical path of the total reflector, an outlet of the pressure reducing valve is connected with an air inlet of the electromagnetic valve, and an air outlet of the electromagnetic valve is connected with an air inlet of the two-station five-way reversing valve and can control air intake and air closeness of the two-station five-way reversing valve; and a cylinder capable of driving the total reflector to run in a reciprocating manner is connected onto the total reflector, two air outlets of the two-station five-way reversing valve are connected with two air holes of the cylinder, and laser beams can be reflected into the absorber after the cylinder pushes the total reflector into the optical path. The optical gate system has the advantages that the optical gate system is flexible, stable and controllable in transmission, high in adaptability and heat conversion efficiency, simple in assembly and easy to maintain, and is adaptable to different working environments, the transmission speed can be regulated in real time, the laser beams can be effectively prevented from escaping from the absorber, and the maintenance cost is reduced as the optical gate system comprises a plurality of different units.
Description
Technical field
The present invention relates to a kind of radio-frequency (RF) board bar CO
2Laser, specifically a kind of radio-frequency (RF) board bar CO
2The laser optical brake system belongs to the laser technique field.
Background technology
The laser optical gate is that output is opened and closing control to laser beam.All playing a very important role in dissimilar laser and laser application, is the important composition parts of laser.The laser optical gate is mainly by the total reflective mirror that changes light path, is used for receiving forming with the absorber of cooling system and the transmission device of total reflective mirror of laser.
The key of laser optical gate design is sensitivity and the stability at the total reflective mirror transmission device, the thermal conversion efficiency of absorber.Wherein the sensitivity of the transmission device of total reflective mirror mainly depends on the performance of driving, and can stability depend primarily on the interference that effectively resist external environment condition.The thermal conversion efficiency of absorber depends primarily on the state that light beam enters absorber, the internal structure design of absorber and the design of cooling system.
Also be not specifically designed at present high power CO
2The optical gate of slab laser, the common antijamming capability that exists of optical gate design of other existing lasers is little, poor stability, the design complexity is unfavorable for maintenance, thermal conversion efficiency is low, laser beam effusion absorber etc.
Summary of the invention
It is sensitive stable that the technical problem to be solved in the present invention is to provide a kind of transmission, and assembling is simple, is easy to safeguard, thermal conversion efficiency is high, can adapt to varying environment and effectively stop laser beam at the radio-frequency (RF) board bar CO of the effusion of absorber
2The laser optical brake system.
In order to solve the problems of the technologies described above, radio-frequency (RF) board bar CO of the present invention
2The laser optical brake system, comprise pressure-reducing valve, electromagnetically operated valve, two position-5 way valves, with the total reflective mirror of atmospheric control and be positioned at absorber on the total reflective mirror light path, the outlet of pressure-reducing valve is connected with the air inlet of electromagnetically operated valve, and the gas outlet of electromagnetically operated valve is connected with the air inlet of two five-way valves and can controls opening gas, holding one's breath of two five-way valves; Be connected with on total reflective mirror and can drive the back and forth cylinder of operation of total reflective mirror, two gas outlets of two five-way valves are connected with two pores of cylinder, and cylinder promotes the laser beam reflection to be entered in absorber after total reflective mirror enters light path.
Be provided with a water-cooling system of dispelling the heat on described total reflective mirror, cooling water enters from water inlet the water-cooling channel that flows out through water-cooling system with delivery port and carries out cooling to total reflective mirror.
Be provided with a water-cooling system of dispelling the heat on described absorber, cooling water enters from water inlet the water-cooling channel that flows out through water-cooling system with delivery port and carries out cooling to absorber.
The invention has the advantages that:
Due to the pressure-reducing valve that arranges, electromagnetically operated valve, two position-5 way valves, control total reflective mirrors by three kinds of valves that arrange, arrange compared with prior art thus, have following advantage:
1, have transmission sensitivity, stable, controlled characteristic is controlled gas pressure with pressure-reducing valve, can be according to the speed of the weight of total reflective mirror and the real-time adjusting transmission of operating position;
2, strong adaptability can adapt to different operational environments;
3, assemble simply, be easy to safeguard, thermal conversion efficiency is high, can effectively stop laser beam in the effusion of absorber;
4, form a shutter system by several different units, maintenance cost reduces.
Description of drawings
Fig. 1 is radio-frequency (RF) board bar CO of the present invention
2The system schematic of laser optical brake system;
Fig. 2 is the structure of relief pressure valve schematic diagram in the present invention;
Fig. 3 is the electromagnetically operated valve "on" position schematic diagram not in the present invention;
Fig. 4 is the two position-5 way valves "on" position schematic diagram not in the present invention;
Fig. 5 is the total reflective mirror structural representation in the present invention;
Fig. 6 is the absorbent structure schematic diagram in the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, to radio-frequency (RF) board bar CO of the present invention
2The laser optical brake system is described in further detail.
As shown in Figure 1, radio-frequency (RF) board bar CO of the present invention
2The laser optical brake system, comprise constant-pressure control device, guider and energy absorbing device, constant voltage is controlled and is completed by pressure-reducing valve 1, the outlet 6 of pressure-reducing valve is connected with the air inlet 7 of electromagnetically operated valve, and the gas outlet 8 of electromagnetically operated valve is connected with the air inlet 9 of two five-way valves and can controls opening gas, holding one's breath of two five-way valves; Be connected with on the total reflective mirror 4 of atmospheric control and can drive the back and forth cylinder 10 of operation of total reflective mirror, two gas outlets 11 of two five-way valves are connected with two pores 12 of cylinder the guiding of controlling total reflective mirror 4 respectively, total reflective mirror becomes 45 degree with beam direction, also be provided with an absorber 5 that is positioned on the total reflective mirror light path, enter that laser beam can be reflected to energy absorbing device after light path be that absorber is completed the work of blocking laser thereby cylinder 10 promotes total reflective mirrors 4.
as shown in Figure 2, pressure-reducing valve 1 is the throttling action decompression by air inlet, by the overflow effect voltage stabilizing of equilibrium of forces effect on diaphragm 15 and spout hole, pressure spring 16 can make output pressure change within the specific limits, and pressure is the compressed air of P1, and after the valve port throttling, pressure is reduced to P2 output by the left end input, and the large I of P2 is regulated by pressure spring 16, the knob that turns clockwise, compression pressure spring 16 and diaphragm 15 move down spool 17, and the aperture that increases valve port increases P2, if inhour rotation knob, the aperture of valve port reduces, and P2 reduces thereupon, if the instantaneous rising of P1, P2 will increase, diaphragm 15 air chamber internal pressures are raise, the corresponding increase of thrust that produces on diaphragm 15, this thrust has been destroyed original equilibrium of forces, diaphragm 15 is moved up, the small part air-flow is arranged through spout hole, steam vent is discharged, when moving on diaphragm 15, effect because of back-moving spring 27, spool 17 is also moved up, turn down intake valve port, throttling action strengthens, output pressure is descended, until till reaching new balance, output pressure is got back to substantially again original value, if the instantaneous decline of input pressure, output pressure also descends, diaphragm moves down, spool moves down thereupon, intake valve port is opened greatly, throttling action reduces, make output pressure also substantially get back to original value.
As shown in Figure 2 and Figure 3, gases at high pressure connect the pressure-reducing valve import and out become constant low pressure gas from exporting 6, and outlet 6 is connected with electromagnetically operated valve air inlet 7, and electromagnetically operated valve 2 is that the electromagnetic force that relies on the power supply coil to produce drives the valve that movable core opens and closes flap.Before energising, valve is in normally off, and after energising, electromagnetic force drives movable core, and valve is opened immediately, and electromagnetically operated valve can reflect that structure is small and exquisite, and is cheap rapidly, can effectively prevent the leakage of working gas simultaneously, uses safety.
As shown in Figure 3, Figure 4, electromagnetically operated valve gas outlet 8 connects the air inlet 9 of two five-way valves, controls opening gas, holding one's breath of two five-way valves.Two five-way valves have compact conformation, commutation flexibly, reliable operation, noiselessness, pollution-free.The airintake direction of two five-way valves is by the solenoid control that carries, handled easily, and simultaneously, two five-way valves selecting are provided with the manual control button, during for debugging or emergency.
As shown in Figure 5, being provided with cooling water on total reflective mirror 4 enters from water inlet 18 water-cooling channel that flows out through water-cooling systems with delivery port 19 and carries out cooling to total reflective mirror 4.Reach cooling purpose by cold water mobile.Two pores 12 of cylinder are connected respectively with the gas outlet 11 of two five-way valves, replace air feed by different pores from piston both sides, and power output makes cylinder make the straight line back and forth movement respectively on both direction; Total reflective mirror 4 is connected with guide rail 21 by total reflective mirror base 20, cylinder piston rod 22 is connected with total reflective mirror base 20 by connecting rod 23, cylinder piston is back and forth movement under the effect respectively of two pores 12, drive total reflective mirror base 20 and do round rectilinear motion on guide rail 21, total reflective mirror base 20 drives total reflective mirror 4 back and forth movements that are fixed on total reflective mirror base 20, reaches the purpose of cutting and leaving light path.Cylinder and guide rail are fixed on equipment 24.In whole system, the movement velocity of cylinder can be regulated by regulating inlet pressure very easily in real time, and the cost of cylinder is lower simultaneously, is easy to safeguard.Total reflective mirror is with cooling system, and cooling system can prevent effectively that speculum is overheated and the damage that causes, improves the useful life of parts and uses safety.
With the absorber of water-cooling system as shown in Figure 6, cylinder 10 promotes total reflective mirrors 4 and enters light path the laser beam reflection is entered in absorber 5 with water-cooling system,
The absorber overall structure is a hollow cylinder 25, and there is a filled circles cone 26 hollow cylinder 25 inside.Inject hollow cylinder 25 when light beam and arrive cone 26 after inner, the angle of cone 26 makes the light beam Multi reflection that gos deep into cone and cylinder 25 outsides of not overflowing through designing.Absorber 5 is processed by red copper, and thermal conductivity is good.The external process deep thread increases area of dissipation simultaneously, inner processing fine thread, can add in inside the aluminum device to increase heat-sinking capability when laser power is excessive, be provided with a water-cooling system of dispelling the heat on absorber 5, cooling water enters from water inlet 13 water-cooling channel that flows out through water-cooling system with delivery port 14 and carries out cooling to absorber 5.
during use, at first gases at high pressure pass through pressure-reducing valve 1, pressure-reducing valve 1 can keep the stable of shutter system, can carry out according to real-time working condition the adjusting of air pressure, gases at high pressure become low pressure-sustaining gas by pressure-reducing valve, thereby make the prolongation of leading in electromagnetically operated valve life-span, electromagnetically operated valve is as the master control of shutter system, two five-way valves that electromagnetically operated valve connects later, the total reflective mirror of two five-way valve back connecting band drive systems and water-cooling system, two five-way valves are with barometric control unit, can easily be that sensitivity is regulated to the movement velocity of total reflective mirror, airintake direction by two five-way valves and total reflective mirror lower cylinder, control the incision of total reflective mirror and leave the Laser output light path, make thus total reflective mirror incision and leave the optical routing cylinder and promote total reflective mirror and move on line slideway and realize.The movement velocity of cylinder is controlled by two five-way valves and pressure-reducing valve.Also with cooling system, avoid the overheated impact that brings of transmitter on total reflective mirror.The Design of Screw Thread of absorber makes heat radiation more abundant, and the design of cone can make the laser beam of injecting not overflow, and has also increased area of dissipation simultaneously.
Claims (3)
1. radio-frequency (RF) board bar CO
2The laser optical brake system, it is characterized in that: comprise pressure-reducing valve (1), electromagnetically operated valve (2), two position-5 way valves (3), with the total reflective mirror (4) of atmospheric control and be positioned at absorber (5) on the total reflective mirror light path, the outlet of described pressure-reducing valve (6) is connected with the air inlet (7) of electromagnetically operated valve, and the gas outlet of described electromagnetically operated valve (8) are connected with the air inlet (9) of two five-way valves and can control opening gas, holding one's breath of two five-way valves; Be connected with on described total reflective mirror (4) and can drive the back and forth cylinder (10) of operation of total reflective mirror, two gas outlets (11) of described two five-way valves are connected with two gas ports (12) of cylinder respectively, and described cylinder (10) promotes the laser beam reflection to be entered in absorber (5) after total reflective mirror (4) enters light path.
2. according to radio-frequency (RF) board bar CO claimed in claim 1
2The laser optical brake system, it is characterized in that: be provided with a water-cooling system of dispelling the heat on described total reflective mirror (4), cooling water carries out cooling from the water-cooling channel that water inlet (18) enters and delivery port (19) flows out through water-cooling system to total reflective mirror (4).
3. according to radio-frequency (RF) board bar CO claimed in claim 1
2The laser optical brake system, it is characterized in that: be provided with a water-cooling system of dispelling the heat on described absorber (5), cooling water carries out cooling from the water-cooling channel that water inlet (13) enters and delivery port (14) flows out through water-cooling system to absorber (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100312348A CN103117500A (en) | 2013-01-28 | 2013-01-28 | Optical gate system of radiofrequency slab CO<2> laser device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100312348A CN103117500A (en) | 2013-01-28 | 2013-01-28 | Optical gate system of radiofrequency slab CO<2> laser device |
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| Publication Number | Publication Date |
|---|---|
| CN103117500A true CN103117500A (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100312348A Pending CN103117500A (en) | 2013-01-28 | 2013-01-28 | Optical gate system of radiofrequency slab CO<2> laser device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2460821Y (en) * | 2001-01-11 | 2001-11-21 | 唐琳海 | No-pressurization gas pressure reducer |
| CN101201127A (en) * | 2006-12-15 | 2008-06-18 | 凯迈（洛阳）测控有限公司 | Gas path pressure release device and corresponding gas path pressure release device realizing large pressure reducing ratio |
| JP2008242306A (en) * | 2007-03-28 | 2008-10-09 | Sumitomo Osaka Cement Co Ltd | Optical pulse laser apparatus |
| CN201145071Y (en) * | 2007-09-06 | 2008-11-05 | 浙江鹏航机械有限公司 | Pressure adjusting valve |
| CN201331712Y (en) * | 2008-11-18 | 2009-10-21 | 深圳市文川实业有限公司 | Decompression pressure stabilizer of high pressure oxygen |
| CN201348677Y (en) * | 2009-01-16 | 2009-11-18 | 北京工业大学 | Optical gate of fast response laser capable of bearing high power |
| CN201805138U (en) * | 2010-08-31 | 2011-04-20 | 武汉嘉铭激光有限公司 | Cavity mirror cooling device for resonant cavity of high-power solid laser |
| CN102510006A (en) * | 2011-11-21 | 2012-06-20 | 中国科学院半导体研究所 | Optical shutter device for high-power laser |
| CN102607782A (en) * | 2012-03-20 | 2012-07-25 | 江苏欧翔机车有限公司 | Air tightness detecting equipment of engine cylinder head |
-
2013
- 2013-01-28 CN CN2013100312348A patent/CN103117500A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2460821Y (en) * | 2001-01-11 | 2001-11-21 | 唐琳海 | No-pressurization gas pressure reducer |
| CN101201127A (en) * | 2006-12-15 | 2008-06-18 | 凯迈（洛阳）测控有限公司 | Gas path pressure release device and corresponding gas path pressure release device realizing large pressure reducing ratio |
| JP2008242306A (en) * | 2007-03-28 | 2008-10-09 | Sumitomo Osaka Cement Co Ltd | Optical pulse laser apparatus |
| CN201145071Y (en) * | 2007-09-06 | 2008-11-05 | 浙江鹏航机械有限公司 | Pressure adjusting valve |
| CN201331712Y (en) * | 2008-11-18 | 2009-10-21 | 深圳市文川实业有限公司 | Decompression pressure stabilizer of high pressure oxygen |
| CN201348677Y (en) * | 2009-01-16 | 2009-11-18 | 北京工业大学 | Optical gate of fast response laser capable of bearing high power |
| CN201805138U (en) * | 2010-08-31 | 2011-04-20 | 武汉嘉铭激光有限公司 | Cavity mirror cooling device for resonant cavity of high-power solid laser |
| CN102510006A (en) * | 2011-11-21 | 2012-06-20 | 中国科学院半导体研究所 | Optical shutter device for high-power laser |
| CN102607782A (en) * | 2012-03-20 | 2012-07-25 | 江苏欧翔机车有限公司 | Air tightness detecting equipment of engine cylinder head |
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Application publication date: 20130522 |