CN102615281B - Regional mobile light source scanning system for laser rapid prototyping technology - Google Patents
Regional mobile light source scanning system for laser rapid prototyping technology Download PDFInfo
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- CN102615281B CN102615281B CN2012101000851A CN201210100085A CN102615281B CN 102615281 B CN102615281 B CN 102615281B CN 2012101000851 A CN2012101000851 A CN 2012101000851A CN 201210100085 A CN201210100085 A CN 201210100085A CN 102615281 B CN102615281 B CN 102615281B
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- subregion
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- scanning
- tangent line
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention provides a regional mobile light source scanning system for a laser rapid prototyping technology. The system comprises a regional mobile platform, wherein the regional mobile platform is fixed in a working shell and arranged above a workpiece cavity; a linear motor platform of the regional mobile platform is suspended above the workpiece cavity through a connecting piece; a scanningplatform is fixed on the linear motor platform; a reflector of the scanning platform is positioned above a laser and a scanning mirror; the laser is positioned on the right of the scanning mirror; a computer with a scan control program is connected with the scanning platform through a mirror control card, and connected with the linear motor platform through a motion control card; before scanning,part data is input into the computer for partitioning, and is subjected to scan filling processing to determine whether a current region has data to be scanned or not, until all data are scanned. According to the regional mobile light source scanning system, the prototyping size of the laser rapid prototyping system is increased, and simultaneously high prototyping accuracy is maintained.
Description
Technical field
The invention belongs to parallel Fast Forming Technique field, be specifically related to a kind of subregion portable light source scanning system for Laser Rapid Prototyping Technique.
Technical background
Laser Rapid Prototyping Technique shines moulding material by the control laser instrument according to the cad data of the mold elements of reading in, and after current layer is finished making, adds the material that needs shaping, and reirradiation is made to finishing part.
Scanning system is as the important component part of Laser Rapid Prototyping Technique, profiled member size, forming efficiency and quality to whole system have vital effect, yet existing rapid prototyping system adopts the single sweep device mostly, can't the one-shot forming large-scale part.The proposition of Paralleled processing concept preferably resolves the making problem of large-scale part, and for example name is called " the Paralleled processing unit (plant) that is used for rapid shaping ", application number is: 98219120.0 patent, but be not suitable for laser fast shaping processing.The appearance of multiple light courcess Paralleled scanning system has solved the problem that laser fast shaping mechanism is made large-scale part well, for example, name is called " a kind of forming material powder system ", application number is: 200610018754.5 patent, but the problem that this scanning system exists is: use many cover laser instruments, scanning galvanometer meeting to cause the rapid forming equipment cost to increase considerably because of itself fetch long price, simultaneously, many cover scanning systems have not only increased the design difficulty of rapid forming equipment, also make the light path plate bulk of these scanning systems of carrying and load-carrying become large.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of subregion portable light source scanning system for Laser Rapid Prototyping Technique, on the basis that does not increase the laser fast forming equipment cost, realize the subregion scanning of laser fast forming, increase the forming dimension of Stereolithography, possess simultaneously high forming accuracy.
In order to achieve the above object, the technical scheme taked of the present invention is as follows:
A kind of subregion portable light source scanning system for Laser Rapid Prototyping Technique, comprise the subregion moveable platform, the workpiece chamber 9 of piston 10 is housed, the subregion moveable platform is fixed in the working shell 6, and be disposed at 9 tops, workpiece chamber, the subregion moveable platform comprises linear electric motors platform 1 and scanning platform 5, linear electric motors platform 1 is suspended from the top in workpiece chamber 6 by connector, scanning platform 5 is fixed on the linear electric motors platform 1, scanning platform 5 comprises laser instrument 3, scanning galvanometer 4 and speculum 2, speculum 2 is positioned at the top of laser instrument 3 and scanning galvanometer 4, laser instrument 3 is positioned at the right of scanning galvanometer 4, a fanout that contains the scan control program links to each other with the control end of scanning platform 5 by the galvanometer control card, links to each other by the control end of motion control card with linear electric motors platform 1 simultaneously.
Described scan control program package contains a zoning ordinance, and zoning ordinance is:
(1) reads current cross section contour information, and draw current cross section contour full-size length H on horizontal X and vertical Y direction
X, H
Y, make H
X, H
YD does division arithmetic with the vibration mirror scanning regional diameter, and the result is designated as Z
X, Z
Y, set up bracket function N
X=[Z
X] and N
Y=[Z
Y], set up fractional part function M
X={ Z
X∈ [0 ,+∞) and M
Y={ Z
Y∈ [0 ,+∞);
(2) L
1Be the tangent line of the cross section contour left end parallel with Y-axis, be directions X subregion original bench mark line; L
2Being the tangent line of the cross section contour right-hand member parallel with Y-axis, is that the directions X subregion stops datum line; L
3Be the tangent line of the cross section contour lower end parallel with X-axis, be Y-direction subregion original bench mark line; L
4Being the tangent line of the cross section contour parallel with X-axis upper end, is that the Y-direction subregion stops datum line;
(3) with tangent line L
1Be the subregion starting point, with tangent line L
3Be datum line under the subregion, take D as the zoning length of side, divide N at directions X successively
XIndividual zone; With tangent line L
2Be the subregion starting point, with tangent line L
3Be datum line under the subregion, take D as single regional length of side ,-1 zone of directions X division, first row directions X subregion is finished, wherein N
XIndividual zone and N
X+ 1 region overlapping partial-length is L
X=D-M
X
(4) with tangent line L
3Along Y-direction successively translation D, 2D ... (N
Y-1) D length, and successively as datum line under the new subregion, repeat successively subregion step (3), finish secondary series, the 3rd row ... N
YRow directions X subregion; With tangent line L
4Be datum line on the new subregion, repeat subregion step (3), finish N
Y+ 1 row directions X subregion, wherein N
Y+ 1 row directions X subregion and N
YRow directions X subregion lap width is L
Y=D-M
Y
The present invention compared with prior art has following outstanding advantages: when guaranteeing precision, only use a cover scanning system to realize the one-shot forming of large-scale part, reduced equipment cost and complexity.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is light source scanning System Working Principle figure of the present invention.
Fig. 3 is the subregion principle schematic.
Among the figure: 1-linear electric motors platform; The 2-speculum; The 3-laser instrument; The 4-scanning galvanometer; The 5-scanning platform; The 6-working shell; 7-vibration mirror scanning zone; The 8-workbench; The 9-working chamber; The 10-piston.
The specific embodiment
The present invention will be described in detail below in conjunction with accompanying drawing.
With reference to Fig. 1, a kind of subregion portable light source scanning system for Laser Rapid Prototyping Technique, comprise the subregion moveable platform, the workpiece chamber 9 of piston 10 is housed, the subregion moveable platform is fixed in the working shell 6, and be disposed at 9 tops, workpiece chamber, the subregion moveable platform comprises linear electric motors platform 1 and scanning platform 5, linear electric motors platform 1 is suspended from the top in workpiece chamber 6 by connector, scanning platform 5 is fixed on the linear electric motors platform 1, scanning platform 5 comprises laser instrument 3, scanning galvanometer 4 and speculum 2, speculum 2 is positioned at the top of laser instrument 3 and scanning galvanometer 4, laser instrument 3 is positioned at the right of scanning galvanometer 4, a fanout that contains the scan control program links to each other with the control end of scanning platform 5 by the galvanometer control card, links to each other by the control end of motion control card with linear electric motors platform 1 simultaneously.
Operation principle of the present invention is:
With reference to Fig. 2, before beginning scanning, part C AD data are input to data processor in the computer, this data processor carries out subregion according to zoning ordinance, the size in each zone is determined by vibration mirror scanning zone 7, data behind the subregion are stored in independently in the file, and the line scanning of going forward side by side is filled and is processed; Then, scanning imaging system reads in the partition data file, and judge in current region, whether to exist data to scan, if exist, then carry out current data scanning, if there is no corresponding data, then by other data distributed areas in the control software search layer, the zone that the chosen distance current location is nearest also moves to this zone by the subregion mobile platform with scanning platform 5, then use laser to carry out processing and fabricating, this layer data machines, the bed thickness height that piston 10 descends and sets, make the filling of material at the upper surface of workbench 8, repeatedly make until finish the scanning of total data.
Described scan control program package contains a zoning ordinance, and with reference to Fig. 3, Fig. 3 is the zoning ordinance principle schematic, and zoning ordinance is:
(1) reads current cross section contour information, and draw current cross section contour full-size length H on horizontal X and vertical Y direction
X, H
Y, make H
X, H
YD does division arithmetic with the vibration mirror scanning regional diameter, and the result is designated as Z
X, Z
Y, set up bracket function N
X=[Z
X] and N
Y=[Z
Y], set up fractional part function M
X={ Z
X∈ [0 ,+∞) and M
Y={ Z
Y∈ [0 ,+∞);
(2) L
1Be the tangent line of the cross section contour left end parallel with Y-axis, be directions X subregion original bench mark line; L
2Being the tangent line of the cross section contour right-hand member parallel with Y-axis, is that the directions X subregion stops datum line; L
3Be the tangent line of the cross section contour lower end parallel with X-axis, be Y-direction subregion original bench mark line; L
4Being the tangent line of the cross section contour parallel with X-axis upper end, is that the Y-direction subregion stops datum line;
(3) with tangent line L
1Be the subregion starting point, with tangent line L
3Be datum line under the subregion, take D as the zoning length of side, divide N at directions X successively
XIndividual zone; With tangent line L
2Be the subregion starting point, with tangent line L
3Be datum line under the subregion, take D as single regional length of side ,-1 zone of directions X division, first row directions X subregion is finished, wherein N
XIndividual zone and N
X+ 1 region overlapping partial-length is L
X=D-M
X
(4) with tangent line L
3Along Y-direction successively translation D, 2D ... (N
Y-1) D length, and successively as datum line under the new subregion, repeat successively subregion step (3), finish secondary series, the 3rd row ... N
YRow directions X subregion; With tangent line L
4Be datum line on the new subregion, repeat subregion step (3), finish N
Y+ 1 row directions X subregion, wherein N
Y+ 1 row directions X subregion and N
YRow directions X subregion lap width is L
Y=D-M
Y
Claims (1)
1. subregion portable light source scanning system that is used for Laser Rapid Prototyping Technique, comprise the subregion moveable platform, the workpiece chamber (9) of piston (10) is housed, it is characterized in that: the subregion moveable platform is fixed in the working shell (6), and be disposed at above the workpiece chamber (9), the subregion moveable platform comprises linear electric motors platform (1) and scanning platform (5), linear electric motors platform (1) is suspended from the top of workpiece chamber (6) by connector, scanning platform (5) is fixed on the linear electric motors platform (1), scanning platform (5) comprises laser instrument (3), scanning galvanometer (4) and speculum (2), speculum (2) is positioned at the top of laser instrument (3) and scanning galvanometer (4), laser instrument (3) is positioned at the right of scanning galvanometer (4), a fanout that contains the scan control program links to each other with the control end of scanning platform (5) by the galvanometer control card, links to each other by the control end of motion control card with linear electric motors platform (1) simultaneously;
Described scan control program package contains a zoning ordinance, and zoning ordinance is:
(1) reads current cross section contour information, and draw current cross section contour full-size length H on horizontal X and vertical Y direction
X, H
Y, make H
X, H
YD does division arithmetic with the vibration mirror scanning regional diameter, and the result is designated as Z
X, Z
Y, set up bracket function N
X=[Z
X] and N
Y=[Z
Y], set up fractional part function M
X={ Z
X∈ [0 ,+∞) and M
Y={ Z
Y∈ [0 ,+∞);
(2) L
1Be the tangent line of the cross section contour left end parallel with Y-axis, be directions X subregion original bench mark line; L
2Being the tangent line of the cross section contour right-hand member parallel with Y-axis, is that the directions X subregion stops datum line; L
3Be the tangent line of the cross section contour lower end parallel with X-axis, be Y-direction subregion original bench mark line; L
4Being the tangent line of the cross section contour parallel with X-axis upper end, is that the Y-direction subregion stops datum line;
(3) with tangent line L
1Be the subregion starting point, with tangent line L
3Be datum line under the subregion, take D as the zoning length of side, divide N at directions X successively
XIndividual zone; With tangent line L
2Be the subregion starting point, with tangent line L
3Be datum line under the subregion, take D as single regional length of side, divide 1 zone at the ?directions X, first row directions X subregion is finished, wherein N
XIndividual zone and N
X+ 1 region overlapping partial-length is L
X=D ?M
X
(4) with tangent line L
3Along Y-direction successively translation D, 2D ... (N
Y?1) a D length, and successively as datum line under the new subregion, repeat successively subregion step (3), finish secondary series, the 3rd row ... N
YRow directions X subregion; With tangent line L
4Be datum line on the new subregion, repeat subregion step (3), finish N
Y+ 1 row directions X subregion, wherein N
Y+ 1 row directions X subregion and N
YRow directions X subregion lap width is L
Y=D ?M
Y
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101000851A CN102615281B (en) | 2012-04-09 | 2012-04-09 | Regional mobile light source scanning system for laser rapid prototyping technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101000851A CN102615281B (en) | 2012-04-09 | 2012-04-09 | Regional mobile light source scanning system for laser rapid prototyping technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102615281A CN102615281A (en) | 2012-08-01 |
| CN102615281B true CN102615281B (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101000851A Expired - Fee Related CN102615281B (en) | 2012-04-09 | 2012-04-09 | Regional mobile light source scanning system for laser rapid prototyping technology |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103071798B (en) * | 2013-01-23 | 2015-11-18 | 西安铂力特激光成形技术有限公司 | Linear guide rail type selective laser melting SLM former |
| CN106794517B (en) * | 2014-05-30 | 2020-06-23 | 普瑞玛工业股份有限公司 | Laser-operated machine for additive manufacturing by laser sintering and corresponding method |
| CN104142574A (en) * | 2014-06-30 | 2014-11-12 | 湖南华曙高科技有限责任公司 | Laser scanning device and method for making three-dimensional object |
| JP6761590B2 (en) * | 2015-12-24 | 2020-09-30 | 株式会社リコー | Optical processing equipment |
| WO2019113949A1 (en) * | 2017-12-15 | 2019-06-20 | 吴江中瑞机电科技有限公司 | Laser scanning system and method for light curing |
| CN108817386B (en) * | 2018-06-29 | 2020-02-14 | 西北工业大学 | Interlayer comb-shaped splicing method for multi-beam laser selective melting forming |
| CN108907190B (en) * | 2018-07-25 | 2020-07-31 | 沈阳精合数控科技开发有限公司 | 3D printing additive manufacturing method for bowl-shaped thin-wall part |
| CN109986783B (en) * | 2019-04-01 | 2021-04-06 | 中国工程物理研究院机械制造工艺研究所 | Trace feeding and forming device and method for embedding of selective melting additive manufacturing equipment |
Family Cites Families (5)
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| KR101037142B1 (en) * | 2002-04-19 | 2011-05-26 | 일렉트로 사이언티픽 인더스트리즈, 아이엔씨 | Program-controlled dicing of a substrate using a pulsed laser |
| JP4800939B2 (en) * | 2006-01-06 | 2011-10-26 | 三菱電機株式会社 | Laser processing apparatus, program creation apparatus, and laser processing method |
| CN201205636Y (en) * | 2008-05-26 | 2009-03-11 | 上海市激光技术研究所 | Apparatus for welding tubular heat exchanger by laser scanning |
| CN102348527B (en) * | 2009-04-15 | 2014-07-09 | 三菱电机株式会社 | Laser machining method and laser machining device |
| CN101670432B (en) * | 2009-07-14 | 2011-02-16 | 黑龙江科技学院 | New method used for realizing powder melting and forming based on laser scanning |
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| CN102615281A (en) | 2012-08-01 |
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Granted publication date: 20131016 Termination date: 20190409 |