CN107617741A - Melt window mirror protection device in a kind of selective laser - Google Patents
Melt window mirror protection device in a kind of selective laser Download PDFInfo
- Publication number
- CN107617741A CN107617741A CN201610526578.XA CN201610526578A CN107617741A CN 107617741 A CN107617741 A CN 107617741A CN 201610526578 A CN201610526578 A CN 201610526578A CN 107617741 A CN107617741 A CN 107617741A
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- China
- Prior art keywords
- window mirror
- window
- gas outlet
- protective
- protective case
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- 230000001681 protective effect Effects 0.000 claims abstract description 65
- 238000013022 venting Methods 0.000 claims abstract description 14
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 7
- 238000003825 pressing Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 29
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000000843 powder Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000110 selective laser sintering Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Lasers (AREA)
Abstract
The invention discloses a kind of selective laser to melt window mirror protection device, and window mirror protection device includes window mirror protective, window mirror pressing plate, window mirror.Window mirror protective includes the window mirror protection core and window mirror protective case being connected with each other, and formed with venting cavity and gas outlet between window mirror protection core and window mirror protective case, gas outlet opening is towards window mirror.There is air inlet, air inlet, venting cavity and gas outlet are interconnected on window mirror protective.Window mirror protects the relative axial position of core and window mirror protective case to adjust, and the openings of sizes of gas outlet changes therewith.Window mirror protection device is melted in selective laser of the present invention, and gas flow is formed not in the inside of part in protection core with the space folded by protective case part outer surface, and runner processing difficulty is greatly reduced；The size of gas outlet is variable, in that context it may be convenient to changes gas outlet air-flow size, adjusts out the optimum efficiency that gas stops to dust.
Description
Technical field
The invention belongs to increases material manufacturing technology field, is related to a kind of selective laser fusing window mirror protection device.
Background technology
Increases material manufacturing technology is (also known as " 3D printing ") the high end digital Rapid Manufacturing Technology developed rapidly in recent years, suitable for the near-net-shape of complex component, the molding part produced using increases material manufacturing technology has excellent mechanical property, it is adapted to the rapid shaping of multiple material, and stock utilization is high.Selective laser is melted and molded technology (Selective Laser Melting, SLM) be increasing material manufacturing Typical Representative, it by traditional three dimensional manufacturing processes be changed into plane manufacture-accumulate superposition process, the manufacture for realizing 3 D complex precision parts is successively melted by powder, it can manufacture and design auxiliary support structure because powder remains static, therefore it is adapted to the manufacture of almost arbitrarily complicated shaped metal parts, can be widely applied to the industries such as Aero-Space, automobile, mould, medical treatment.
The basic process of SLM techniques is：A certain amount of powder is delivered to work top by dust feeder, one layer of dusty material is laid in the upper surface of molded part by scraper, powder is heated to a certain temperature less than its melting point by heater, galvanometer control system control laser beam is scanned according to the cross section profile of this layer to solid section powder bed, and powder fusing simultaneously realizes fusion with following molded part；After a layer cross section has fused, workbench declines the thickness of a layer, and scraper again in layer overlay above, uniformly densely melt by powder, the scanning for carrying out a new layer cross section, if the scanning superposition of warp dried layer, until completing whole raw basin.To ensure the stabilization of material property, forming room is in the relative air-tight state full of inert gas.Laser light window mirror floats to having dust in the process of powder, in forming room, is attached on window mirror and flies at around window mirror, and the dust will detract laser projection power, the final quality for influenceing shaping workpiece.
Patent " a kind of selective laser sintering window mirror protection device ", application number " CN201220062380.8 ", it is proposed that a kind of selective laser sintering window mirror protection device, gas flow is in the inside of window mirror protection board in the device, not easy processing；Gas outlet size is fixed, when the gas of blowout is bad to dust blocking effect, it is impossible to be easily adjusted.
The content of the invention
The shortcomings that it is an object of the invention to overcome above-mentioned prior art, there is provided window mirror protection device is melted in a kind of selective laser, and the device is easy to process, can easily change gas outlet air-flow size, realizes the optimum efficiency that gas stops to dust.
To reach above-mentioned purpose, the present invention is achieved using following technical scheme.
A kind of window mirror protection device of selective laser fusing; it is characterized in that; the protection device includes a kind of window mirror protective; the window mirror protective includes the window mirror protection core being connected with each other and window mirror protective case; formed with venting cavity and gas outlet between window mirror protection core and window mirror protective case, the gas outlet opening direction is towards window mirror.
The window mirror protective also has air inlet, and the air inlet is interconnected with the venting cavity, gas outlet.Air inlet can be opened on the window mirror protective case, can also be opened on window mirror protection core, and air inlet can be one or more.
The window mirror protective further comprises axial-adjustment unit, for adjusting the relative axial position between the window mirror protection core and window mirror protective case.The axial-adjustment unit is preferably multiple equally distributed set screws.
The invention has the advantages that：
Window mirror protection device is melted in selective laser of the present invention, and gas flow is formed not in the inside of part in protection core with the space folded by protective case part outer surface, and runner processing difficulty is greatly reduced；The size of gas outlet is variable, in that context it may be convenient to changes gas outlet air-flow size, adjusts out the optimum efficiency that gas stops to dust.
Brief description of the drawings
Fig. 1 is the front view of the window mirror protection device embodiment 1 of the present invention.
Fig. 2 is the cross section A-A face of the window mirror protection device embodiment 1 of the present invention.
Fig. 3 is Fig. 2 C portions enlarged drawing.
Fig. 4 is the section B-B face of the window mirror protection device embodiment 1 of the present invention.
Fig. 5 is the normal axomometric drawing of the window mirror protection device embodiment 1 of the present invention.
Fig. 6 is the front view of the window mirror protection device embodiment 2 of the present invention.
Fig. 7 is the section D-D face of the window mirror protection device embodiment 2 of the present invention.
Fig. 8 is the section that core 1 is protected in the window mirror protection device embodiment 2 of the present invention.
Fig. 9 is the section of protective case 2 in a window mirror protection device embodiment 2 of the invention.
Figure 10 is the section E-E faces of the window mirror protection device embodiment 2 of the present invention.
In figure：1- protects core；2- protective cases；3- window mirror pressing plates；4- window mirrors；5- gas outlets；6- venting cavities；7- air inlets；8- set screws；9- screws；10- screw thread pairs；101- external screw threads；201- internal threads.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment
1
：
Window mirror protective is made up of protection core 1 and protective case 2, protects core 1 and protective case 2 to be fixed together by screw 9.Window mirror 4 is fixed on protection core 1 by window mirror pressing plate 3.
As shown in Figures 2 and 3, protect and venting cavity 6 and gas outlet 5 are formed between core 1 and protective case 2, the direction of gas outlet 5 is towards window mirror 4.Window mirror protective is provided with air inlet 7, and air inlet 7 can be located on protective case 2, can also be located on protection core 1, not influence using effect.The present embodiment air inlet is located on protective case 2,6 be preferably distributed uniformly and circumferentially.Interconnected between air inlet 7, venting cavity 6 and gas outlet 5.
As Figure 1-4; during work; protective gas enters venting cavity 6 from air inlet 7; then window mirror 4 is blowed to from gas outlet 5, when air-flow size is improper, unclamps the screw 9 of fixed protection core 1 and protective case 2; adjust the set screw 8 on protective case 2; the relative axial position of protection core 1 and protective case 2 can be changed, then change the openings of sizes of gas outlet 5, the air-flow size of blowout gas outlet 5 also changes.After the big minor adjustment of air-flow is suitable, screw 9 is tightened, protects the relative axial position of core 1 and protective case 2 to fix, completes regulation process.
Embodiment
2
：
As shown in Figures 6 and 7, window mirror protection device is made up of the window mirror protection device embodiment 2 of the present invention window mirror protective, window mirror 4, window mirror pressing plate 3, and window mirror protective is made up of protection core 1 and protective case 2.As shown in figure 8, protection core 1 includes external screw thread 101.Protective case 2 as shown in Figure 9 includes internal thread 201.As shown in fig. 7, the external screw thread 101 of protection core 1 and the internal thread 201 of protective case 2 cooperatively form screw thread pair 10, protect core 1 and protective case 2 to be linked together by screw thread pair 10, pass through the locking screw pair 10 of set screw 8.Window mirror 4 is fixed on protection core 1 by window mirror pressing plate 3.
As shown in fig. 7, form venting cavity 6 and gas outlet 5 between protection core 1 and protective case 2, the direction of gas outlet 5 is towards window mirror 4.The gas flow of gas outlet 5 and venting cavity 6 is formed between protection core 1 and the outer surface of protective case 2.Window mirror protective is provided with air inlet 7, and air inlet 7 can be located on protective case 2, can also be located on protection core 1, not influence using effect.The present embodiment air inlet is located on protective case 2,6 be preferably distributed uniformly and circumferentially.Interconnected between air inlet 7, venting cavity 6 and gas outlet 5.
As shown in Fig. 6,7 and 10; during work; protective gas enters venting cavity 6 from air inlet 7; then window mirror 4 is blowed to from gas outlet 5, when air-flow size is improper, unclamps set screw 8; rotate screw thread pair 10; the relative axial position of protection core 1 and protective case 2 can be changed, then change the openings of sizes of gas outlet 5, the air-flow size of blowout gas outlet 5 also changes.After the big minor adjustment of air-flow is suitable, set screw 8 is held out against, screw thread pair 10 is locked, and protects the relative axial position of core 1 and protective case 2 to fix, and completes regulation process.
Claims (10)
1. window mirror protection device is melted in a kind of selective laser, it is characterised in that the protection device includes a kind of window mirror protective, and the window mirror protective includes：
The window mirror protection core and window mirror protective case of interconnection, formed with venting cavity and gas outlet between the window mirror protection core and window mirror protective case, the gas outlet opening is towards window mirror；
The window mirror protective also has air inlet, and the air inlet is interconnected with the venting cavity, gas outlet.
2. window mirror protective according to claim 1, it is characterised in that the window mirror protection core and window mirror protective case are connected with each other by screw.
3. window mirror protective according to claim 1, it is characterised in that the window mirror protection core and window mirror protective case are connected with each other by screw thread pair.
4. window mirror protective according to claim 1, it is characterised in that the air inlet of the window mirror protective is the air inlet being opened on the window mirror protection core.
5. window mirror protective according to claim 1, it is characterised in that the air inlet of the window mirror protective is the air inlet being opened on the window mirror protective case.
6. the window mirror protective according to claim 1 to 5 any one, it is characterised in that the air inlet is multiple.
7. window mirror protective according to claim 6, it is characterised in that multiple air inlets are uniformly distributed.
8. the window mirror protective according to claim 1 to 5 any one, it is characterised in that the window mirror protective further comprises axial-adjustment unit, for adjusting the relative axial position between the window mirror protection core and window mirror protective case.
9. window mirror protective according to claim 8, it is characterised in that the axial-adjustment unit is set screw.
10. a kind of selective laser melting unit, the equipment comprises at least window mirror, it is characterised in that the equipment further comprises the window mirror protective as described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610526578.XA CN107617741A (en) | 2016-07-06 | 2016-07-06 | Melt window mirror protection device in a kind of selective laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610526578.XA CN107617741A (en) | 2016-07-06 | 2016-07-06 | Melt window mirror protection device in a kind of selective laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107617741A true CN107617741A (en) | 2018-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610526578.XA Pending CN107617741A (en) | 2016-07-06 | 2016-07-06 | Melt window mirror protection device in a kind of selective laser |
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| Country | Link |
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| CN (1) | CN107617741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238398A (en) * | 2019-07-01 | 2019-09-17 | 广州大学 | A kind of lens protection device of SLM type metal 3D printer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120037604A1 (en) * | 2009-03-31 | 2012-02-16 | Katsuya Shikata | Laser beam machining device |
| CN102528034A (en) * | 2012-02-24 | 2012-07-04 | 湖南华曙高科技有限责任公司 | Method for protecting gas curtain of selective laser sintering window mirror |
| CN203509343U (en) * | 2013-10-18 | 2014-04-02 | 无锡庆源激光科技有限公司 | Annular air guide mechanism for air blowing of laser head |
| CN203637192U (en) * | 2013-12-17 | 2014-06-11 | 招銮 | Blowing cooling device of triaxial scanner window lens of 3D (three-dimensional) printer |
| CN104089118A (en) * | 2014-06-27 | 2014-10-08 | 北京华美聚合物有限公司 | Flange |
| DE102015013847A1 (en) * | 2015-10-27 | 2016-04-14 | Daimler Ag | Laser welding equipment |
| CN205834238U (en) * | 2016-07-06 | 2016-12-28 | 北京多能正光科技有限公司 | A kind of selective laser fusing window mirror protection device |
-
2016
- 2016-07-06 CN CN201610526578.XA patent/CN107617741A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120037604A1 (en) * | 2009-03-31 | 2012-02-16 | Katsuya Shikata | Laser beam machining device |
| CN102528034A (en) * | 2012-02-24 | 2012-07-04 | 湖南华曙高科技有限责任公司 | Method for protecting gas curtain of selective laser sintering window mirror |
| CN203509343U (en) * | 2013-10-18 | 2014-04-02 | 无锡庆源激光科技有限公司 | Annular air guide mechanism for air blowing of laser head |
| CN203637192U (en) * | 2013-12-17 | 2014-06-11 | 招銮 | Blowing cooling device of triaxial scanner window lens of 3D (three-dimensional) printer |
| CN104089118A (en) * | 2014-06-27 | 2014-10-08 | 北京华美聚合物有限公司 | Flange |
| DE102015013847A1 (en) * | 2015-10-27 | 2016-04-14 | Daimler Ag | Laser welding equipment |
| CN205834238U (en) * | 2016-07-06 | 2016-12-28 | 北京多能正光科技有限公司 | A kind of selective laser fusing window mirror protection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238398A (en) * | 2019-07-01 | 2019-09-17 | 广州大学 | A kind of lens protection device of SLM type metal 3D printer |
| CN110238398B (en) * | 2019-07-01 | 2022-01-04 | 广州大学 | Lens protection device of SLM type metal 3D printer |
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