CN114951982A - Field lens device with air curtain protective cover structure - Google Patents
Field lens device with air curtain protective cover structure Download PDFInfo
- Publication number
- CN114951982A CN114951982A CN202210555036.0A CN202210555036A CN114951982A CN 114951982 A CN114951982 A CN 114951982A CN 202210555036 A CN202210555036 A CN 202210555036A CN 114951982 A CN114951982 A CN 114951982A
- Authority
- CN
- China
- Prior art keywords
- air
- air curtain
- protection cover
- field lens
- main body
- 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
- 230000001681 protective effect Effects 0.000 title claims description 13
- 210000001503 joint Anatomy 0.000 claims abstract description 15
- 238000009423 ventilation Methods 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims abstract description 13
- 230000037431 insertion Effects 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 6
- 239000002893 slag Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- -1 smog Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/1435—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor involving specially adapted flow control means
- B23K26/1438—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor involving specially adapted flow control means for directional control
Abstract
The invention discloses a field lens device with an air curtain protection cover structure, which comprises an air curtain component arranged at the bottom of a field lens and quick insertion air nozzles circumferentially arranged on the air curtain component, wherein the air curtain component comprises an air curtain protection cover main body and an air curtain protection cover positioned right below the air curtain protection cover main body, the circumference of the air curtain protection cover main body is provided with air nozzle butt joint air vents and annular ventilation notches communicated with the air nozzle butt joint air vents, the upper part of the inner wall of the air curtain protection cover is inwards inclined and forms an annular air outlet inclined seam with the lower edge of the air curtain protection cover main body, the lower part of the inner wall of the air curtain protection cover is outwards inclined and forms a triangular notch with the lower edge of the air curtain protection cover main body, the quick insertion air nozzles are arranged on the air nozzle butt joint air vents and can convey air to the annular ventilation notches, the annular air outlet inclined seam is communicated with the annular ventilation notches, the air outlet inclined seam has an air injection angle of 30-60 degrees, and has good field lens protection effect, The scene environment is clean and efficient, and the air current is even and stable to form the vortex.
Description
Technical Field
The invention belongs to the technical field of field lens protection, and particularly relates to a field lens device with an air curtain protection cover structure.
Background
In the laser processing process, because the use environment cannot be effectively controlled, the window protection sheet of the field lens is gradually stuck with dust along with the accumulation of the use time, and a large amount of smoke, dust or slag is generated in the process of processing certain materials by laser, and the substances are easily adhered to the window protection sheet of the field lens, so that the lens of the field lens is polluted, and if the window protection sheet is not cleaned or replaced in time, the lens is possibly damaged or the use performance is reduced; however, in the process of replacing and removing the protective sheet of the window of the field lens, the lens inside the field lens is polluted due to poor environmental cleanliness.
The prior art adopts an air knife to blow air transversely at the position of a field lens window, an air curtain is formed at the position of the field lens window to protect a lens, but the air pressure on the surface of the lens is easily uneven, so that the position of negative pressure near the lens is easily gray, the patent CN109759697B provides a lens protection device, the mode of the air knife is improved, and the device is too closed and complex, and is not beneficial to replacing a protection lens and using a large-size field lens.
Disclosure of Invention
The invention aims to provide a field lens device with an air curtain protection cover structure, which has the advantages of outstanding environment cleaning effect and uniform air pressure on the surface of a field lens, and solves the problem of field lens pollution caused by poor environment cleanliness when pollutants are attached to a field lens window protection sheet or the field lens window protection sheet is replaced.
Therefore, the technical scheme adopted by the invention is as follows: a field lens device with an air curtain protection cover structure comprises an air curtain assembly and an air curtain protection cover, wherein the air curtain assembly is arranged at the bottom of a field lens, the air curtain assembly comprises an air curtain protection cover main body and an air curtain protection cover located right below the air curtain protection cover main body, the periphery of the air curtain protection cover main body is provided with an air nozzle butt joint air vent and a circular ventilation notch communicated with the air nozzle butt joint air vent, the upper portion of the inner wall of the air curtain protection cover is inwards inclined and forms a circular air outlet inclined seam with the lower portion of the air curtain protection cover main body along an inclined plane, the lower portion of the inner wall of the air curtain protection cover is outwards inclined and forms a triangular notch with the lower portion of the air curtain protection cover main body along the inclined plane, the quick insertion air nozzle is arranged on the air nozzle butt joint air vent and can convey air to the circular ventilation notch, the circular air outlet inclined seam is communicated with the circular ventilation notch, the air injection angle of the circular air outlet inclined seam is 30-60 degrees, the cross section area of the air inlet of the quick insertion air nozzle is consistent with that of the air outlet of the annular air outlet inclined seam, so that air can be uniformly sprayed downwards and inwards along the bottom of the annular air outlet inclined seam, and a semi-ellipsoid vortex is formed at the bottom of the field lens.
Preferably as above-mentioned scheme, air curtain protective cover lid passes through the fix with screw with air curtain protective cover main part to be equipped with air curtain protective cover sealing washer, the installation is firm, effectively ensures the leakproofness of junction, avoids the gas in the hoop ventilation notch to overflow along both junctions of air curtain protective cover lid and air curtain protective cover main part.
Further preferably, the air curtain protection cover main body is in threaded connection with the field lens and is provided with a sealing ring, the threaded connection is convenient to install and stable and firm, and friction at the joint is effectively reduced by the sealing ring.
Further preferably, the air outlet end external thread of the quick inserting air faucet is matched with the internal thread of the air faucet butt joint air vent, the quick inserting air faucet can be fixed on the air curtain protection cover main body through screwing, the operation is simple and convenient, and the sealing performance is good.
The invention has the beneficial effects that:
(1) gas curtain protection shroud inner wall upper portion inclination and with gas curtain protection shroud main part down along the inclined plane formation hoop to give vent to anger the oblique seam, gas curtain protection shroud inner wall lower part extroversion and with gas curtain protection shroud main part down along the inclined plane formation triangle breach, thereby make to give vent to anger oblique seam spun gas along the hoop and be fan-shaped, the spray regime is wider, the environmental cleaning is more high-efficient, the protection zone of scene bottom is bigger, when effectively guaranteeing to change the scene window screening glass, all ring edge borders are clean and do not have the dust, smog, impurity such as slag.
(2) The annular air outlet oblique seam is communicated with the annular ventilation notch, the air injection angle of the annular air outlet oblique seam is 30-60 degrees, the angle is reasonable, an air protection film can be formed at the light outlet position at the bottom of the field lens, and the lens of the field lens can be protected to the maximum extent.
(3) The cross section area of the air inlet of the quick insertion air nozzle is consistent with the cross section area of the air outlet of the annular air outlet oblique seam, so that air can be uniformly sprayed out downwards and inwards along the bottom of the annular air outlet oblique seam, a semi-elliptical spherical vortex is formed at the bottom of the field lens, the flow rate of the sprayed air is ensured to be uniform and stable, the vortex is formed, the position of a window of the field lens is continuously and stably cleaned, and the situation that smoke, dust or molten slag in the environment is attached to a protective sheet of the window of the field lens to cause pollution of the field lens is effectively avoided.
(4) Compared with the prior art, the air knife is adopted to blow air transversely at the field lens window position, the air curtain is formed at the field lens window position to protect the lens, the air pressure on the surface of the lens is uniform and stable, the part near the lens is constantly in positive pressure, and dust feeding is effectively avoided.
In conclusion, the air flow control device has the advantages of being good in field lens protection effect, clean and efficient in scene environment, uniform and stable in air flow, capable of forming vortex and the like.
Drawings
Fig. 1 is a front sectional view of the present invention.
Fig. 2 is a partially enlarged view of fig. 1 at a.
Fig. 3 is a diagram showing simulation results of airflow flow.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings:
referring to fig. 1-3, a field lens device with an air curtain protection cover structure is composed of an air curtain component 2 installed at the bottom of a field lens 1 and a quick insertion air nozzle 3 installed on the air curtain component 2 circumferentially.
The air curtain assembly 2 is composed of an air curtain shield main body 21 and an air curtain shield cover 22 located right below the air curtain shield main body 21.
The air curtain protection cover main body 21 is screwed with the field lens 1 and is provided with a sealing ring.
The air curtain shield cover 22 is fixed to the air curtain shield cover main body 21 by screws, and is provided with an air curtain shield packing 213.
The circumference of the air curtain protection cover main body 21 is provided with an air nozzle butt joint vent hole 211 and an annular vent notch 212 communicated with the air nozzle butt joint vent hole 211.
The upper part of the inner wall of the inflatable curtain protection cover 22 inclines inwards and forms an annular air outlet inclined seam 221 with the lower edge inclined plane of the inflatable curtain protection cover main body 21.
The lower part of the inner wall of the air curtain protection cover 22 inclines outwards and forms a triangular notch with the lower edge inclined plane of the air curtain protection cover main body 21.
The annular air outlet inclined seam 221 is communicated with the annular ventilation notch 212, and the air injection angle of the annular air outlet inclined seam 221 is 30-60 degrees.
The cross section area of the air inlet of the fast inserting air nozzle 3 is consistent with that of the air outlet of the annular air outlet inclined seam 221, so that air can be uniformly sprayed downwards and inwards along the bottom of the annular air outlet inclined seam 221, and a semi-ellipsoidal vortex is formed at the bottom of the field lens 1.
The external thread of the air outlet end of the quick insertion air faucet 3 is matched with the internal thread of the air faucet butt joint air vent 211, and the quick insertion air faucet 3 can be fixed on the air curtain protection cover main body 21 through screwing.
The annular air outlet oblique seam 221 is communicated with the annular ventilation notch 212 and can enable air to be uniformly sprayed out in an annular downward inward inclination mode, and the light outlet position of the field lens 1 is clean.
The quick insertion air nozzle 3 is connected with an air pipe, and air passes through the air nozzle butt joint air vent 211, the annular air vent notch 212 and the annular air outlet inclined seam 221 in sequence and then is uniformly and stably sprayed out along the triangular notch.
The airflow forms a sealing air protective film near the field lens window protective sheet, and the stable airflow circulation forms vortex, so that the situation that smoke, dust or slag in the environment is close to the field lens window protective sheet is avoided.
Claims (4)
1. The utility model provides a field lens device with gas curtain safety cover structure which characterized in that: the air curtain protection device comprises an air curtain component (2) arranged at the bottom of a field lens (1) and an air curtain protection cover cap (22) arranged right below the air curtain component (2) in the circumferential direction, wherein the air curtain component (2) comprises an air curtain protection cover main body (21) and an air curtain protection cover cap (22) arranged right below the air curtain protection cover main body (21), the circumferential direction of the air curtain protection cover main body (21) is provided with an air nozzle butt joint air vent hole (211) and a circular ventilation notch (212) communicated with the air nozzle butt joint air vent hole (211), the upper part of the inner wall of the air curtain protection cover cap (22) is inwards inclined and forms a circular ventilation oblique air outlet gap (221) with the air curtain protection cover main body (21) along the inclined plane, the lower part of the inner wall of the air curtain protection cover cap (22) is outwards inclined and forms a triangular notch with the air curtain protection cover main body (21) along the inclined plane, the quick insertion air nozzle (3) is arranged on the air nozzle butt joint air vent hole (211) and can convey gas to the circular ventilation notch (212), the annular air outlet inclined seam (221) is communicated with the annular ventilation notch (212), the air injection angle of the annular air outlet inclined seam (221) is 30-60 degrees, the cross section area of an air inlet of the quick insertion air nozzle (3) is consistent with that of an air outlet of the annular air outlet inclined seam (221), air can be uniformly sprayed out along the bottom of the annular air outlet inclined seam (221) in a downward and inward inclining mode, and a semi-elliptical spherical vortex is formed at the bottom of the field lens (1).
2. The field lens apparatus with inflatable curtain shield structure of claim 1, wherein: the air curtain protection cover cap (22) and the air curtain protection cover main body (21) are fixed through screws and are provided with air curtain protection cover sealing rings (213).
3. The field lens apparatus with inflatable curtain shield structure of claim 1, wherein: the air curtain protective cover main body (21) is in threaded connection with the field lens (1) and is provided with a sealing ring.
4. The field lens apparatus with air curtain shield structure as claimed in claim 1, wherein: the air outlet end external thread of the quick insertion air faucet (3) is matched with the internal thread of the air faucet butt joint air vent (211), and the quick insertion air faucet (3) can be fixed on the air curtain protection cover main body (21) through screwing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210555036.0A CN114951982A (en) | 2022-05-20 | 2022-05-20 | Field lens device with air curtain protective cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210555036.0A CN114951982A (en) | 2022-05-20 | 2022-05-20 | Field lens device with air curtain protective cover structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114951982A true CN114951982A (en) | 2022-08-30 |
Family
ID=82984624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210555036.0A Pending CN114951982A (en) | 2022-05-20 | 2022-05-20 | Field lens device with air curtain protective cover structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114951982A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203561439U (en) * | 2013-09-29 | 2014-04-23 | 上海博锐特光电科技有限公司 | Novel air protection type infrared thermal imagery lens dustproof device |
| CN204524553U (en) * | 2014-12-25 | 2015-08-05 | 大族激光科技产业集团股份有限公司 | A kind of blowing dust collector |
| CN205834484U (en) * | 2016-07-13 | 2016-12-28 | 卡门哈斯激光科技（苏州）有限公司 | Cut head unit |
| CN108505037A (en) * | 2018-04-20 | 2018-09-07 | 苏州中科中美激光科技有限公司 | A kind of air knife for protecting window mirror |
| CN109759697A (en) * | 2019-01-31 | 2019-05-17 | 大族激光科技产业集团股份有限公司 | Laser processing lens protective device and laser process equipment |
| US20200166856A1 (en) * | 2017-07-21 | 2020-05-28 | Shanghai Micro Electronics Equipment (Group) Co., Ltd. | Objective lens protection device, objective lens system and lithographic device |
| CN111330915A (en) * | 2018-12-18 | 2020-06-26 | 中国科学院宁波材料技术与工程研究所 | Automatic cleaning device for laser field lens based on coanda effect |
| CN215698851U (en) * | 2021-09-07 | 2022-02-01 | 深圳吉阳智能科技有限公司 | Dustproof light emitting device and laser cutting equipment |
-
2022
- 2022-05-20 CN CN202210555036.0A patent/CN114951982A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203561439U (en) * | 2013-09-29 | 2014-04-23 | 上海博锐特光电科技有限公司 | Novel air protection type infrared thermal imagery lens dustproof device |
| CN204524553U (en) * | 2014-12-25 | 2015-08-05 | 大族激光科技产业集团股份有限公司 | A kind of blowing dust collector |
| CN205834484U (en) * | 2016-07-13 | 2016-12-28 | 卡门哈斯激光科技（苏州）有限公司 | Cut head unit |
| US20200166856A1 (en) * | 2017-07-21 | 2020-05-28 | Shanghai Micro Electronics Equipment (Group) Co., Ltd. | Objective lens protection device, objective lens system and lithographic device |
| CN108505037A (en) * | 2018-04-20 | 2018-09-07 | 苏州中科中美激光科技有限公司 | A kind of air knife for protecting window mirror |
| CN111330915A (en) * | 2018-12-18 | 2020-06-26 | 中国科学院宁波材料技术与工程研究所 | Automatic cleaning device for laser field lens based on coanda effect |
| CN109759697A (en) * | 2019-01-31 | 2019-05-17 | 大族激光科技产业集团股份有限公司 | Laser processing lens protective device and laser process equipment |
| CN215698851U (en) * | 2021-09-07 | 2022-02-01 | 深圳吉阳智能科技有限公司 | Dustproof light emitting device and laser cutting equipment |
Non-Patent Citations (1)
| Title |
|---|
| 中国电子工程设计院: "建筑工程常用材料设备产品大全 供热·通风·制冷·空调设备", 中国建筑工业出版社, pages: 148 * |
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