CN101474725B - Laser shock processing system optical mask spitting-proof device - Google Patents
Laser shock processing system optical mask spitting-proof device Download PDFInfo
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- CN101474725B CN101474725B CN 200910021001 CN200910021001A CN101474725B CN 101474725 B CN101474725 B CN 101474725B CN 200910021001 CN200910021001 CN 200910021001 CN 200910021001 A CN200910021001 A CN 200910021001A CN 101474725 B CN101474725 B CN 101474725B
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Abstract
The invention discloses an optical membrane splash preventing device for a laser impact fortifying system, comprising a mechanical fixing device, a fixed return spring, a light blocking piece and a magnetic coil, wherein, the light blocking piece is a long pole with one end provided with a light proof plate which is arranged on a laser optical path of the laser impact fortifying system and has an area larger than the area of laser facula; the other end thereof is provided with metal which can be attracted by magnetic force, the metal is connected with a mechanical fixing device by the fixed return spring; at the position corresponding to the fixed return spring, an electromagnetic coil is fixed on the mechanical fixing device; a control circuit of the electromagnetic coil is connected to a control computer of the laser impact fortifying system, the direction of the elastic force of the spring is opposite to the direction of the acting force of the electromagnetic coil, a plane formed by two directions of the acting force and the light blocking piece is vertical to the direction of the laser. The device of the invention can realize rapid and automatic splash-prevention; in addition, the structure design thereof is simple and reliable.
Description
Technical field
The present invention relates to reiforcing laser impact technology, especially a kind of device that utilizes optical system final stage eyeglass in the laser-impact process, to stop splash to be polluted automatically.
Background technology
Reiforcing laser impact technology is called laser peening again; be to utilize high-energy, the light laser of short pulse ns magnitude to see through restraint layer to impact the laser absorption diaphragm that covers the metal surface; temperature raises rapidly after rete absorbs laser energy; produce plasma stock wave; shock wave pressure up to GPa makes material surface that the micro-plastic deformation be taken place; produce the residual compressive stress layer; thereby improved the mechanical performance of metal material effectively, can increase substantially fatigue life, the anti-stress corrosion performance of material.Usually in the shock peening commercial Application, adopt water as restraint layer, at this moment because of the obstruction of water constraint layer and metal surface article on plasma body shock wave, water constraint layer and metal surface dirt will reverse light path towards the eyeglass splash of optical system, optical mirror slip is polluted, have a strong impact on the mass parameter of beam of laser energy, thereby reduced the final shock peening effect of metal material surface.
Through consulting of pertinent literature and patent; it is 200510037969.7 patent of invention " a kind of focus lamp guard method and device based on laser shock wave technology " that people such as the domestic Yin Su people of Jiangsu University have the patent No.; close with this patent, all be that the optical lens of protection shock peening system is avoided polluting.This invention weak point is to adopt the driving of stepper motor and the rotation of mechanical device to protect optical lens to avoid splashings to pollute, and it can not satisfy real-time requirement on industrial application fast.Up to the present, also do not retrieve other open report both at home and abroad about laser impact intensified system optics eyeglass antispray automaton.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of antispray device, in laser impact intensified processing procedure, pass through effectively to reduce the pollution of optical mirror slip, further improve laser impact intensified production efficiency and reduce the cost that production is safeguarded, quicken laser impact intensified industrial applications.
The technical solution adopted for the present invention to solve the technical problems is: comprise mechanical fastening system, fixedly return spring, light barrier and solenoid, light barrier is the stock that an end has light tight plate, light tight plate be positioned on the laser optical path of laser impact intensified system and area greater than the laser facula area; The other end of stock is metal (can by the metal of magnetic attraction), be connected on the mechanical fastening system by fixing return spring, there is a solenoid to be fixed on the mechanical fastening system with the position that fixedly return spring is relative, the control circuit of solenoid is connected to the control computer of laser impact intensified system, the elastic force of spring is opposite with the force direction of solenoid, and the plane that two force directions and light barrier constitute is perpendicular to laser direction.
Operation principle of the present invention is that the synchronous triggering signal that provided by industrial control computer is behind the circuit suitable time-delay, export to the control circuit of solenoid, one group of signal of this control circuit output is controlled the quick pick-up of solenoid, the pulsed light beam that high power pulsed laser is sent is by after the optical system, quick rotation by light barrier, realize the automatic switch of light path, reach the purpose of blocking the flight splashings.
The invention has the beneficial effects as follows: owing to adopt the Long-distance Control of industrial control computer, high power pulsed laser, robot for controlling movement and apparatus of the present invention organically are combined togather the laser impact intensified systemic-function that has strengthened.By industrial computer and solenoid controlled circuit, utilize the quick pick-up of solenoid to control the pollution of splashings to camera lens, can realize fast automatic antispray function, satisfy the quick real-time guard requirement of industrial applications.Core apparatus of the present invention is the solenoid controlled module, and structural design is simple, reliable, can satisfy abominable industrial environment and use.Control the maintenance work that has reduced optical lens because of the automatic type of this device simultaneously, improved production efficiency.
The present invention is further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the general structure schematic diagram of antispray device of the present invention;
Fig. 2 is the structural representation of solenoid of the present invention;
Among the figure, 1. pulse laser; 2. optical system; 3. solenoid mechanical device; 4. water constraint layer; 5. five robot controlling platforms; 6. solenoid controlled circuit; 7. industrial control computer; 8. synchronous triggering signal cable; 9. fixing return spring; 10. shaft fulcrum; 11. the light barrier position 1 of light path closure state; 12. laser bore; 13. the light barrier position 2 of light path opening; 14. solenoid; 15. mechanical fastening system.
The specific embodiment
Device embodiment: the present invention as shown in Figure 1, pulse laser 1 is being placed in the system forefront, its laser beam that sends passes the solenoid mechanical device 3 of lens anti-pollution and the workpiece on the water constraint layer 4 back arrival robot controlling platforms 5 by after the optical system 2.Wherein solenoid controlled circuit 6 is controlled the solenoid mechanical devices, and be placed in system's one side as control centre's industrial control computer 7 of whole system, emission, the motion of robot controlling platform 5 and the control circuit of solenoid by synchronous triggering signal cable 8 difference control impuls laser instruments 1.
Described solenoid mechanical device 3 is placed in before the optical system lens 2 perpendicular to light path, the synchronous triggering signal that provides by industrial control computer 7 by signal cable 8 through exporting to the control circuit 6 of solenoid behind the delay circuits, control solenoid 14 quick pick-up metal light blocking sheets 13 are by light barrier 11 positions 1 light path closure state; Checker with position 2 light path openings; Thereby realize the automatic switch of light path.In real work, anti-fouler and impact between the workpiece operating distance and be controlled at 1.2m to about the 1.5m, this is to consider that the initial velocity of the dirt that splashes of shock peening is very big, about the km/s magnitude.Suppose that according to the flight dirt initial velocity after impacting be 1000m/s, is that 100m/s is because of being subjected to the obstruction of factors such as air drag and water layer through 1m apart from the back velocity attenuation, the faster calculating of actual speed decay, about whole flight course about 2ms average time, and the response time of our solenoid can be controlled at about 1ms, promptly the solenoid anti-fouler just can guarantee effective work like this less than control response time of solenoid the whole dirt flight time of splashing in operating distance.
In this simultaneously, considered before next laser pulse synchronizing signal triggers, impact passing through and guaranteeing to block follow-up flight splashings of light beam for not stopping.Solenoid 14 is inhaled and should be kept certain time-delay 1～3ms, and the pickup time of this process can be according to working practice by providing suitable delay time parameter in computer control software and the solenoid controlled circuit 6.Keep certain suction and after the time, metal light blocking sheet 13 relies on 9 times power of springs to be returned to original position at solenoid 14.The time of this recovery process, relevant according to selected reed coefficient of stiffiness K size, should generally can be controlled in 50～100ms recovery time in the real work.
Loop cycle like this, behind each synchronous trigger impulse, metal light blocking sheet 13 is closed light path by the adhesive of solenoid 14, and opens before next synchronous trigger impulse, allows laser beam pass through.So neither hinder shock peening work, also prevented of the pollution of flight splashings simultaneously, played the effect of eyeglass optical mirror slip.
By above-mentioned specific descriptions, can calculate about 100ms of response time of whole antispray device, than the laser pulse frequency 1Hz in the real work, promptly laser pulse interval is that 1000ms is little a lot, illustrates that this device can satisfy industrial requirement.At last, apparatus of the present invention are controlled at about 1.5m in the operating distance of actual shock peening, also are to consider above-mentioned time response of situation.Purpose is to make the response time of control procedure well-to-do.
Claims (1)
1. laser shock processing system optical mask spitting-proof device, comprise mechanical fastening system, fixedly return spring, light barrier and solenoid, it is characterized in that: light barrier is the stock that an end has light tight plate, light tight plate be positioned on the laser optical path of laser impact intensified system and area greater than the laser facula area; The other end of stock is can be by the metal of magnetic attraction, be connected on the mechanical fastening system by fixing return spring, the position relative with fixing return spring direction has a solenoid to be fixed on mechanical fastening system inside, the control circuit of solenoid is connected to the control computer of laser impact intensified system, the elastic force of spring is opposite with the force direction of solenoid, and the plane that two force directions and light barrier constitute is perpendicular to laser direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910021001 CN101474725B (en) | 2009-01-21 | 2009-01-21 | Laser shock processing system optical mask spitting-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910021001 CN101474725B (en) | 2009-01-21 | 2009-01-21 | Laser shock processing system optical mask spitting-proof device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101474725A CN101474725A (en) | 2009-07-08 |
| CN101474725B true CN101474725B (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910021001 Expired - Fee Related CN101474725B (en) | 2009-01-21 | 2009-01-21 | Laser shock processing system optical mask spitting-proof device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108531715A (en) * | 2018-07-18 | 2018-09-14 | 西安天瑞达光电技术股份有限公司 | A kind of laser impact intensified final stage eyeglass fast assembly and disassembly mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2480096Y (en) * | 2000-12-14 | 2002-03-06 | 中国科学院力学研究所 | Apparatus for reinforcing thermo-roller by high-frequency pulse laser |
| CN2487492Y (en) * | 2001-07-20 | 2002-04-24 | 周志勇 | Airflow protector for laser focusing lens |
| CN2494727Y (en) * | 2001-07-18 | 2002-06-12 | 周志勇 | Laser focus lens with water-ring cooling protector |
| CN2641057Y (en) * | 2003-07-02 | 2004-09-15 | 中国航空工业第一集团公司北京航空制造工程研究所 | Working chamber for laser imkpact treatment |
| CN1695872A (en) * | 2005-03-04 | 2005-11-16 | 江苏大学 | Method and device for protecting focusing mirror based on technique of laser shock wave |
-
2009
- 2009-01-21 CN CN 200910021001 patent/CN101474725B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2480096Y (en) * | 2000-12-14 | 2002-03-06 | 中国科学院力学研究所 | Apparatus for reinforcing thermo-roller by high-frequency pulse laser |
| CN2494727Y (en) * | 2001-07-18 | 2002-06-12 | 周志勇 | Laser focus lens with water-ring cooling protector |
| CN2487492Y (en) * | 2001-07-20 | 2002-04-24 | 周志勇 | Airflow protector for laser focusing lens |
| CN2641057Y (en) * | 2003-07-02 | 2004-09-15 | 中国航空工业第一集团公司北京航空制造工程研究所 | Working chamber for laser imkpact treatment |
| CN1695872A (en) * | 2005-03-04 | 2005-11-16 | 江苏大学 | Method and device for protecting focusing mirror based on technique of laser shock wave |
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| CN101474725A (en) | 2009-07-08 |
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Address after: 710043 No. 1, Xinke Road, Shaanxi, Xi'an Patentee after: Xi'an Ruida photoelectric technology Limited by Share Ltd Address before: 710043 No. 1, Xinke Road, Shaanxi, Xi'an Patentee before: Xi'an Tyride Optical Electric Technology Co., Ltd. |
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Granted publication date: 20111116 Termination date: 20210121 |
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