CN103447528B - The Foldable and easy be shaped for selective laser fusing changes building mortion - Google Patents
The Foldable and easy be shaped for selective laser fusing changes building mortion Download PDFInfo
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- CN103447528B CN103447528B CN201310320681.5A CN201310320681A CN103447528B CN 103447528 B CN103447528 B CN 103447528B CN 201310320681 A CN201310320681 A CN 201310320681A CN 103447528 B CN103447528 B CN 103447528B
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- telescopic cover
- base plate
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- selective laser
- foldable
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Abstract
The invention discloses a kind of Foldable and easy replacing building mortion be shaped for selective laser fusing, it is characterized in that, comprise forming board, base plate, from the bottom up diminishing telescopic cover, forming board is fixed on base plate, telescopic cover lower end is fixed on floor peripheral, and base plate is connected with electric pushrod upper plate by lower clamping element; Telescopic cover upper end is connected with the lower surface of forming face by upper clamping element.After forming process terminates, this device need only be taken out and part can be taken out and remove residual powder.
Description
Technical field
The present invention relates to 3D and print selective laser fusing RP technique, particularly one is used for metal and non-metallic laser selective melting building mortion.
Background technology
Selective laser fusing is shaped that (Selective Laser Melting, SLM) technology is a kind of can the RP technique of direct forming metal parts, is that 3D prints one of principal mode of Quick-forming.The principle of this technology as shown in Figure 1.Industrial computer controls the scanning of galvanometer constituency according to the cad model information through slicing treatment, the fusion of metal powder be scanned bonds together, one deck has scanned, feeding cylinder rises one deck (formation cylinder decline accordingly one deck), scraper plate (or roller) at forming face layer overlay powder, then carry out the scanning fusing of lower one deck, such one deck connects one deck and to be shaped final part.Because every layer of powder do not melted supports the part part of inclination (even unsettled), therefore the complicated metal parts that traditional diamond-making technique cannot produce at all can directly be produced, and the part be shaped has good mechanical property, Just because of this, this technique is applied more and more extensive in Aero-Space and biologic medical etc.
SLM technique is that scanning galvanometer is to control laser beam scan path because of what adopt, speed can reach 3-5m/s, therefore its forming efficiency is higher, but part forming is complete, the cleaning of residual powder but will take a long time, because in forming process, forming face more or less can remain some metal dusts, and in formation cylinder except the part be shaped, other spaces are unfused metal dust all abrim.These granularities only have the powder of tens micron sizes want to clean out and be not easy, if adopt dust catcher to inhale, so not only time-consuming but also require great effort, and the powder that inspiration is gone is because be metal, is easy to the motor damage dust catcher; And if employing people uses the brush cleaning of clear powder by hand, can form dust during tiny powder moving, grievous injury operating personnel's is healthy, is unfavorable for the Long-Time Service of equipment, consume a large amount of non-cutting times, do not meet efficient, the environmental protection on modern industry, humanity concept.The clearing and retrieving how well solving selective laser melting powder also determine the popularization commercially of SLM apparatus and process and industrial large-scale application in some sense.
At present, the EOSINT M280 of external SLM equipment picture Germany EOS, the FS-Realizer of MCP company of Britain
sLMmachine etc. all adopt special explosion-proof dust catcher to be recycled into the residual powder of shape, and this special dust catcher is domestic at present does not also have like product.
In actual production, if better mode can be had to be recycled into shape powder, save this link of dust catcher, Whole Equipment efficiency will certainly be improved, be more conducive to the health of staff, thus improve the competitive advantage of equipment, in the long run, further developing and applying of selective laser smelting technology also can better be promoted.
Summary of the invention
In order to solve the difficult problem that existing SLM equipment Powder Recovery is consuming time, effort, effect are bad, the object of the present invention is to provide a kind of building mortion be shaped for selective laser fusing, this building mortion can stretch along with the lifting of electric pushrod, thus reclaims more easily, removes residual powder.
In order to reach above object, the present invention takes following technical scheme to be achieved:
A kind of Foldable and easy replacing building mortion be shaped for selective laser fusing, it is characterized in that, comprise forming board, base plate, from the bottom up diminishing telescopic cover, forming board is fixed on base plate, telescopic cover lower end is fixed on floor peripheral, and base plate is connected with electric pushrod upper plate by lower clamping element; Telescopic cover upper end is connected with the lower surface of forming face by upper clamping element.
In such scheme, described telescopic cover comprises multiple ring be nested together, joint forming face, radial direction interior side loop upper end lower surface; Radially side loop lower end is fixed on floor peripheral, is connected after each ring axial elongation by contrary " L " periphery.
The axial total height of described base plate and forming board is not higher than telescopic cover total height in the compressible state.
Compared with traditional method (forming process powder is directly fallen in formation cylinder), advantage of the present invention is:
1, in forming process, remaining powder all drops in the powder forming device of collapsible replacing, along with the decline of base plate is stretched gradually, often spreads layer of metal powder and all can fall in telescopic cover.After shaping terminates, only this device need be taken out can by Powder Recovery, and it is quite convenient to operate
2, due to not residual powder in forming face, and every layer of remaining powder is all in telescopic cover, therefore be shaped after terminating, do not need to adopt extra equipment to carry out remaining powder in cleaning equipment, eliminate artificial irritated cleaning operation process, greatly enhance the work situation of staff.
3, substantially reduce the time of powder cleaning, Powder Recovery, improve the monolithic molding efficiency of equipment, improve equipment competitiveness commercially.
The present invention is applicable to 3D and prints Quick-forming field, and target solves the difficult problem that formed powder reclaims, cleaning is inconvenient that selective laser melting unit exists.Save powder clearance time, improve the utilization rate of forming machine.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.
Fig. 1 is selective laser melting unit principle schematic.
Fig. 2 is the structural representation of apparatus of the present invention.In figure: 1. shaping basal plane, 2. compressing member, 3. cylinder body, 4. telescopic cover, 5. base plate, 6. compressing member, 7. forming board, 8. electric pushrod.
Fig. 3 is the schematic diagram of Fig. 2 building mortion compressive state.
Fig. 4 is the enlarged diagram of scalable cover coupling part.Wherein: a is I enlarged drawing in Fig. 2; B is II enlarged drawing in Fig. 3.
Detailed description of the invention
As shown in Figure 2, a kind of Foldable and easy replacing building mortion be shaped for selective laser fusing, is arranged in the cylinder body 3 of former formation cylinder, comprises forming board 7, base plate 5, from the bottom up diminishing telescopic cover 4.Forming board 7 is fixed on base plate 5, and telescopic cover 4 lower end is fixed on base plate 5 periphery, and base plate 5 is connected with the upper plate of electric pushrod 8 by clamping element 6.Telescopic cover 4 upper end is connected with the lower surface of forming face 1 (being connected with former formation cylinder upper end) by clamping element 2.
When starting to be shaped, electric pushrod 8 promotes base plate 5 and forming board 7 rises, make forming board concordant with forming face 1, now telescopic cover 4 also shortens thereupon, change in shape as shown in Figure 3, wherein telescopic cover 4 in the drawings shape only play signal effect, material and structure are not limit in practical application, as long as can ensure flexible effect and have enough rigidity (being unlikely to caves in when taking out causes powder to overflow), the total height of base plate 5 and forming board 7 should not higher than telescopic cover 4 total height in the compressible state.In forming process, building mortion stretches gradually along with the decline of base plate, often spreads layer of metal powder and all can fall in this device.After shaping terminates, change in shape as shown in Figure 2, is unclamped clamping device 2,6, takes out building mortion, cleans out metal dust wherein, takes out the part be shaped.
Fig. 4 gives a concrete structure of telescopic cover 4, comprises the ring (Fig. 4 b) that multiple (at least three) that are highly greater than base plate and forming board total height are nested together, joint forming face 1, radial direction interior side loop upper end lower surface; Radially side loop lower end is fixed on base plate 5 periphery, and each ring diameter increases successively, and after each ring axial elongation, by the connection of contrary " L " periphery, (Fig. 4 a).Under interior side loop, " L " periphery slides along the inwall of " L " periphery on the ring of outside, can effectively prevent powder from outflowing like this.
Claims (3)
1. the Foldable and easy replacing building mortion be shaped for selective laser fusing, it is characterized in that, comprise forming board, base plate, from the bottom up diminishing telescopic cover, forming board is fixed on base plate, telescopic cover lower end is fixed on floor peripheral, and base plate is connected with electric pushrod upper plate by lower clamping element; Telescopic cover upper end is connected with the lower surface of forming face by upper clamping element.
2. the Foldable and easy be shaped for selective laser fusing as claimed in claim 1 changes building mortion, and it is characterized in that, described telescopic cover comprises multiple ring be nested together, joint forming face, radial direction interior side loop upper end lower surface; Radially side loop lower end is fixed on floor peripheral, and each ring diameter increases successively, and connected by contrary " L " shape periphery after each ring axial elongation, under interior side loop, " L " periphery slides along the inwall of " L " periphery on the ring of outside.
3. the Foldable and easy be shaped for selective laser fusing as claimed in claim 2 changes building mortion, and it is characterized in that, the axial total height of described base plate and forming board is not higher than telescopic cover total height in the compressible state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310320681.5A CN103447528B (en) | 2013-07-26 | 2013-07-26 | The Foldable and easy be shaped for selective laser fusing changes building mortion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310320681.5A CN103447528B (en) | 2013-07-26 | 2013-07-26 | The Foldable and easy be shaped for selective laser fusing changes building mortion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103447528A CN103447528A (en) | 2013-12-18 |
| CN103447528B true CN103447528B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310320681.5A Expired - Fee Related CN103447528B (en) | 2013-07-26 | 2013-07-26 | The Foldable and easy be shaped for selective laser fusing changes building mortion |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862043B (en) * | 2014-03-05 | 2015-12-09 | 西安交通大学 | Improve the device of non-magnetic metal powder selective laser sintering forming quality |
| DE102017208496A1 (en) * | 2017-05-19 | 2018-11-22 | SLM Solutions Group AG | Apparatus and method for producing three-dimensional workpieces |
| US11458682B2 (en) * | 2018-02-27 | 2022-10-04 | Arcam Ab | Compact build tank for an additive manufacturing apparatus |
| US11267051B2 (en) * | 2018-02-27 | 2022-03-08 | Arcam Ab | Build tank for an additive manufacturing apparatus |
| WO2019207049A1 (en) * | 2018-04-27 | 2019-10-31 | Freemelt Ab | Build compartment with self-sealing design |
| CN111070675B (en) * | 2019-12-26 | 2021-08-24 | 珠海赛纳三维科技有限公司 | Molding cylinder and molding device |
| WO2021194480A1 (en) * | 2020-03-24 | 2021-09-30 | Hewlett-Packard Development Company, L.P. | 3d printing non-powered compartments with passive latches |
| JP7279234B1 (en) | 2022-04-27 | 2023-05-22 | 株式会社ソディック | Additive manufacturing machines and small area manufacturing units for additive manufacturing machines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59600002D1 (en) * | 1995-04-21 | 1997-07-03 | Eos Electro Optical Syst | Device and method for producing a three-dimensional object |
| DE19821810C1 (en) * | 1998-05-15 | 2000-03-09 | Atz Evus | Process for the production of metallic and non-metallic functional models with the help of rapid prototyping / tooling processes or other processes and alternative process gas supply |
| EP1037739B2 (en) * | 1998-10-09 | 2008-03-12 | EOS GmbH Electro Optical Systems | Device for producing a three-dimensional object, especially a laser sintering machine |
| CN100386173C (en) * | 2005-12-09 | 2008-05-07 | 大连理工大学 | Laser rapid-forming method based on contour scanning of coated powder materials |
| CN202239628U (en) * | 2011-08-22 | 2012-05-30 | 华南理工大学 | Device for producing non-linear tree-shaped fluid suction cores by using selective laser melting |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0712027D0 (en) * | 2007-06-21 | 2007-08-01 | Materials Solutions | Rotating build plate |
-
2013
- 2013-07-26 CN CN201310320681.5A patent/CN103447528B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59600002D1 (en) * | 1995-04-21 | 1997-07-03 | Eos Electro Optical Syst | Device and method for producing a three-dimensional object |
| DE19821810C1 (en) * | 1998-05-15 | 2000-03-09 | Atz Evus | Process for the production of metallic and non-metallic functional models with the help of rapid prototyping / tooling processes or other processes and alternative process gas supply |
| EP1037739B2 (en) * | 1998-10-09 | 2008-03-12 | EOS GmbH Electro Optical Systems | Device for producing a three-dimensional object, especially a laser sintering machine |
| CN100386173C (en) * | 2005-12-09 | 2008-05-07 | 大连理工大学 | Laser rapid-forming method based on contour scanning of coated powder materials |
| CN202239628U (en) * | 2011-08-22 | 2012-05-30 | 华南理工大学 | Device for producing non-linear tree-shaped fluid suction cores by using selective laser melting |
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| CN103447528A (en) | 2013-12-18 |
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