CN101236284A - Laser vacuum chamber focusing device - Google Patents
Laser vacuum chamber focusing device Download PDFInfo
- Publication number
- CN101236284A CN101236284A CNA2008100640430A CN200810064043A CN101236284A CN 101236284 A CN101236284 A CN 101236284A CN A2008100640430 A CNA2008100640430 A CN A2008100640430A CN 200810064043 A CN200810064043 A CN 200810064043A CN 101236284 A CN101236284 A CN 101236284A
- Authority
- CN
- China
- Prior art keywords
- cover
- water
- groove
- eyeglass
- support cylinder
- 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.)
- Granted
Links
Images
Landscapes
- Lasers (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a laser vacuum chamber focusing device and relates to a focusing device. The laser vacuum chamber focusing device aims to solve the problem that metal oxide or nitride is easy to be produced during interaction between laser beam and metal powder in the air, which affects the performance of a cladding material. An inner sealed sleeve of the laser vacuum chamber focusing device is connected with a cushion cover which is connected with a water cooling ring sleeve, a groove of a sealed rubber ring groove is provided with a sealed rubber ring inside, a lens groove is packaged with a focusing lens, the inner sealed sleeve is arranged in an inner hole of a support cylinder, a vacuum sealed rubber ring is arranged in a groove on the support cylinder, outer threads of the support cylinder are connected with inner threads on a focus adjusting sleeve, the top of the focus adjusting sleeve is in fixed connection with a lower ring of a rotating bearing and an upper ring of the rotating bearing is in fixed connected with the lower end of the cushion cover. The laser vacuum chamber focusing device can avoid a certain element in the metal powder contacted with the air during the interaction between the laser beam and the pre-arranged metal powder on a sampling surface, preventing the formation of oxide or nitride in the metal powder and ensuring the invariance of the cladding material elements.
Description
Technical field
The present invention relates to a kind of focus control.
Background technology
In technological processs such as research laser melting coating and rapid shaping, except will setting up suitable laser technical parameters, to determine the unchangeability of powder chemistry composition element behind cladding or the rapid shaping strictly speaking, if laser melting and coating process carries out in air, so airborne certain element (as: oxygen or nitrogen etc.) will produce the local melting zone of high temperature when laser beam and metal powder interaction and certain element in the metal powder reacts, generate metal oxide or nitride, the adding of this " oxygen or nitrogen " element will influence the cladding layer material property, for avoiding the generation of this situation, simple method is to blow inert gas to guarantee the unchangeability of metallic element composition in the molten bath to the fusion of metal powder zone, but this method is very difficult air and molten bath is kept apart fully.
Summary of the invention
The objective of the invention is influences the problem of cladding layer material property for solving in air in the laser beam and metal powder interaction process easy generation metal oxide or nitride, and a kind of laser vacuum chamber focusing device is provided.
The present invention includes focus pack 1, support cylinder 2, focus and overlap 3, vacuum seal cushion rubber 4 and swivel bearing 5, focus pack 1 is by focusing lens 11, the eyeglass seat of honour 12, eyeglass base 13, O-ring seal 14, water-cooled annulus cover 15, cushion cover 16 and inner sealing cover 17 are formed, fixedly connected with the lower end of cushion cover 16 in the top of inner sealing cover 17, fixedly connected with the lower end of water-cooled annulus cover 15 in the upper end of cushion cover 16, the top end face of water-cooled annulus cover 15 is provided with fluid sealant ring recess 151, the lower surface of eyeglass base 13 is provided with aprons slot 131, the upper surface of eyeglass base 13 is provided with eyeglass groove 132, the end face of eyeglass groove 132 is provided with groove 133, be provided with O-ring seal 14 in fluid sealant ring recess 151 on the water-cooled annulus cover 15 and the groove 133 on the eyeglass base 13, eyeglass base 13 be arranged on water-cooled annulus cover 15 above, focusing lens 11 is housed in the eyeglass groove 132, the eyeglass seat of honour 12 be arranged on focusing lens 11 and eyeglass base 13 above, inner sealing cover 17 is arranged in the endoporus of support cylinder 2, the top of support cylinder 2 is provided with flange 21 and groove 22, vacuum seal cushion rubber 4 is arranged in the groove 22 on the support cylinder 2, the outer wall of the flange 21 on the support cylinder 2 is provided with external thread 23, cover 3 the inwall of focusing is provided with internal thread 31, external thread 23 on the support cylinder 2 is threaded with the internal thread 31 that overlaps on 3 of focusing, fixedly connected with the following ring of swivel bearing 5 in cover 3 the top of focusing, the going up to encircle of swivel bearing 5 fixedlyed connected with the lower end of cushion cover 16.
Technique effect of the present invention is: because the present invention adopts lens that the CO2 laser beam is imported under vacuum environment, when laser beam and metal powder are interacted, avoid certain element in the metal powder to contact with air, having prevented has generations such as oxide or nitride in the metal powder, guaranteed the unchangeability of cladding layer material element.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention, and Fig. 2 is the left view (remove water-cooled and take over 6) of Fig. 1, and Fig. 3 is the I partial enlarged drawing of Fig. 1.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1, present embodiment is by focus pack 1, support cylinder 2, focus and overlap 3, vacuum seal cushion rubber 4 and swivel bearing 5, focus pack 1 is by focusing lens 11, the eyeglass seat of honour 12, eyeglass base 13, O-ring seal 14, water-cooled annulus cover 15, cushion cover 16 and inner sealing cover 17 are formed, fixedly connected with the lower end of cushion cover 16 in the top of inner sealing cover 17, fixedly connected with the lower end of water-cooled annulus cover 15 in the upper end of cushion cover 16, the top end face of water-cooled annulus cover 15 is provided with fluid sealant ring recess 151, the lower surface of eyeglass base 13 is provided with aprons slot 131, the upper surface of eyeglass base 13 is provided with eyeglass groove 132, the end face of eyeglass groove 132 is provided with groove 133, be provided with O-ring seal 14 in fluid sealant ring recess 151 on the water-cooled annulus cover 15 and the groove 133 on the eyeglass base 13, eyeglass base 13 be arranged on water-cooled annulus cover 15 above, and be connected by bolt with water-cooled annulus cover 15, focusing lens 11 is housed in the eyeglass groove 132, the eyeglass seat of honour 12 be arranged on focusing lens 11 and eyeglass base 13 above, and be connected with eyeglass base 13 by bolt, inner sealing cover 17 is arranged in the endoporus of support cylinder 2, the top of support cylinder 2 is provided with flange 21 and groove 22, vacuum seal cushion rubber 4 is arranged in the groove 22 on the support cylinder 2, the outer wall of the flange 21 on the support cylinder 2 is provided with external thread 23, cover 3 the inwall of focusing is provided with internal thread 31, external thread 23 on the support cylinder 2 is threaded with the internal thread 31 that overlaps on 3 of focusing, fixedly connected with the following ring of swivel bearing 5 in cover 3 the top of focusing, the going up to encircle of swivel bearing 5 fixedlyed connected with the lower end of cushion cover 16.Swivel bearing 5 friction between cover 3 and the cushion cover 16 that can reduce to focus, the reduction rotational resistance.During use, the lower end and the vacuum chamber 7 of support cylinder 2 is fixing, sample 8 places and is positioned at corresponding position, support cylinder 2 axle center in the vacuum chamber 7, metal powder is preset on the surface of sample 8, rotation is focused and is overlapped 3, itself and support cylinder 2 is produced relatively move, and drives focusing lens 11 and moves up and down, the distance of the sample 8 in focusing lens 11 and the vacuum chamber 7 is changed, thereby realized the purpose of focusing.O-ring seal 14 between O-ring seal 14 between vacuum seal cushion rubber 4, focusing lens 11 and eyeglass groove 51 end faces between inner sealing cover 17 and the support cylinder 2, eyeglass base 13 and the water-cooled annulus cover 15 can make in the inner sealing cover 17 and keep vacuum.
Embodiment two: present embodiment is described in conjunction with Fig. 2 and Fig. 3, the difference of present embodiment and embodiment one is: present embodiment also increases has two water-cooleds to take over 6, the upper surface of water-cooled annulus cover 15 is provided with water-cooled circular channel 152, the sidewall of water-cooled annulus cover 15 is provided with water inlet 153 and 154, two water-cooleds adapters 6 of water delivering orifice are separately positioned on water inlet 153 and water delivering orifice 154 places.During use, water-cooled is taken over 6 and is connected with water circulating pump, open water pump, make water-cooled circular channel 152 produce cooling circulating water, the hyperthermia radiation of generation is avoided focusing lens 11 temperature distortions or cracking when absorbing the heat of laser beam and laser beam and interact with sample 8 in order to cooling focusing lens 11 itself.
Claims (2)
1, a kind of laser vacuum chamber focusing device, it comprises focus pack (1), support cylinder (2), the cover (3) of focusing, vacuum seal cushion rubber (4) and swivel bearing (5), it is characterized in that focus pack (1) is by focusing lens (11), the eyeglass seat of honour (12), eyeglass base (13), O-ring seal (14), water-cooled annulus cover (15), cushion cover (16) and inner sealing cover (17) are formed, fixedly connected with the lower end of cushion cover (16) in the top of inner sealing cover (17), fixedly connected with the lower end of water-cooled annulus cover (15) in the upper end of cushion cover (16), the top end face of water-cooled annulus cover (15) is provided with fluid sealant ring recess (151), the lower surface of eyeglass base (13) is provided with aprons slot (131), the upper surface of eyeglass base (13) is provided with eyeglass groove (132), the end face of eyeglass groove (132) is provided with groove (133), be provided with O-ring seal (14) in fluid sealant ring recess (151) on the water-cooled annulus cover (15) and the groove (133) on the eyeglass base (13), eyeglass base (13) be arranged on water-cooled annulus cover (15) above, focusing lens (11) is housed in the eyeglass groove (132), the eyeglass seat of honour (12) be arranged on focusing lens (11) and eyeglass base (13) above, inner sealing cover (17) is arranged in the endoporus of support cylinder (2), the top of support cylinder (2) is provided with flange (21) and groove (22), vacuum seal cushion rubber (4) is arranged in the groove (22) on the support cylinder (2), the outer wall of the flange (21) on the support cylinder (2) is provided with external thread (23), the inwall of cover (3) of focusing is provided with internal thread (31), external thread (23) on the support cylinder (2) is threaded with internal thread (31) on the cover (3) of focusing, fixedly connected with the following ring of swivel bearing (5) in the focus top of cover (3), the ring of going up of swivel bearing (5) is fixedlyed connected with the lower end of cushion cover (16).
2, according to the described laser vacuum chamber focusing device of claim 1, it is characterized in that it also includes two water-cooleds and takes over (6), the upper surface of water-cooled annulus cover (15) is provided with water-cooled circular channel (152), the sidewall of water-cooled annulus cover (15) is provided with water inlet (153) and water delivering orifice (154), and two water-cooled adapters (6) are separately positioned on water inlet (153) and water delivering orifice (154) is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100640430A CN101236284B (en) | 2008-02-29 | 2008-02-29 | Laser vacuum chamber focusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100640430A CN101236284B (en) | 2008-02-29 | 2008-02-29 | Laser vacuum chamber focusing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101236284A true CN101236284A (en) | 2008-08-06 |
| CN101236284B CN101236284B (en) | 2010-04-14 |
Family
ID=39920023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100640430A Expired - Fee Related CN101236284B (en) | 2008-02-29 | 2008-02-29 | Laser vacuum chamber focusing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101236284B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441935A (en) * | 2014-11-28 | 2016-03-30 | 中国科学院金属研究所 | Coaxial powder feeding laser cladding method and special processing device under vacuum condition |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4724299A (en) * | 1987-04-15 | 1988-02-09 | Quantum Laser Corporation | Laser spray nozzle and method |
| CN1194820C (en) * | 2002-07-05 | 2005-03-30 | 清华大学 | Noozle for laser smelting deposition by vertically feeding powder |
| CN2707772Y (en) * | 2004-06-15 | 2005-07-06 | 华南理工大学 | Ring type coaxial laser cladding nozzle |
-
2008
- 2008-02-29 CN CN2008100640430A patent/CN101236284B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441935A (en) * | 2014-11-28 | 2016-03-30 | 中国科学院金属研究所 | Coaxial powder feeding laser cladding method and special processing device under vacuum condition |
| CN105441935B (en) * | 2014-11-28 | 2017-12-15 | 中国科学院金属研究所 | Coaxial powder-feeding laser melting-painting method and its special apparatus for working under a kind of vacuum condition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101236284B (en) | 2010-04-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106425090A (en) | Laser welding gas protective device used for aluminum alloy parts | |
| CN104178763B (en) | A kind of laser coaxial cladding feeding head | |
| CN208067567U (en) | Laser cutting system optical laser cutting head | |
| CN108326425B (en) | Focal plane rotation laser spot welding method | |
| CN101236284B (en) | Laser vacuum chamber focusing device | |
| CN103672108A (en) | Electromagnetic valve and welding method of electromagnetic valve | |
| CN108581238B (en) | Laser welding pressing device and pressing welding method | |
| CN112281159A (en) | High-speed laser inner hole cladding gun | |
| CN207713821U (en) | A kind of expansible multiple laser cladding head of center powder feeding | |
| CN105772724B (en) | A kind of method for improving laser metal 3D drip molding quality | |
| CN102151990A (en) | Rotary laser head auxiliary gas transmission device for laser processing machine tool | |
| CN104280878B (en) | A kind of laser barrier gate system with high anti-damage ability | |
| CN107983955A (en) | A kind of preheating insulation device for selective laser fusing shaping | |
| CN104294011A (en) | Inner bore laser quenching head and quenching method | |
| CN103769730B (en) | A kind of closed container girth welding frock | |
| CN102242334A (en) | Processing method of local laser blackening for coating metalwork | |
| US20150007808A1 (en) | Glass-to-metal joint for a solar receiver | |
| CN210755878U (en) | Laser cutting head and laser cutting equipment | |
| CN103358022A (en) | Laser welding method for turbocharger shell | |
| CN105039973B (en) | The forming method of the pump housing hard sealant of endless member inner surface | |
| CN211771552U (en) | Laser cladding head | |
| CN105628616B (en) | Extremely low temperature, high vacuum environment material microscopic observation system | |
| CN214443068U (en) | Stable form injection apparatus | |
| JP4730806B2 (en) | Glass optical element molding apparatus and molding method | |
| CN108213712A (en) | A kind of aluminium alloy laser spot rotates welding with filler wire method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20100414 Termination date: 20110229 |