CN107262717A - Subregion lifts into form selective laser melting workbench - Google Patents
Subregion lifts into form selective laser melting workbench Download PDFInfo
- Publication number
- CN107262717A CN107262717A CN201710669903.2A CN201710669903A CN107262717A CN 107262717 A CN107262717 A CN 107262717A CN 201710669903 A CN201710669903 A CN 201710669903A CN 107262717 A CN107262717 A CN 107262717A
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- Prior art keywords
- base station
- powder
- shaping
- outer base
- confession
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/22—Driving means
- B22F12/222—Driving means for motion along a direction orthogonal to the plane of a layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/30—Platforms or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
- B22F12/55—Two or more means for feeding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/90—Means for process control, e.g. cameras or sensors
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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
Abstract
Form selective laser melting workbench is lifted into the invention discloses a kind of subregion, at least include the forming table for being used for powdering and workpiece sintering shaping, forming table includes in shaping base station and is coated in shaping base station and radially from least one of overcoat spread configuration shapes outer base station successively from inside to outside, base station and the outer base station of each shaping are set in liftable mode in shaping, base station or the outer base station of the shaping individually decline in shaping, or base station or/and the common decline of the interior base station of shaping can form and treat powdering region for laser sintering (SLS) workpiece outside the outer base station of shaping and adjacent shaping；The demand of powder, to form the part to be formed for being applicable different sizes, can be greatly reduced, and improve powder service efficiency for powder platform, subregion lifting forming table according to the sizes of thin-walled parts to be formed, subregion lifting.
Description
Technical field
The present invention relates to selective laser melting technical field, more particularly to a kind of subregion lifts into form selective laser
Melt workbench.
Background technology
Selective laser melting, also known as SLM, are to be completely melt using metal dust under the heat effect of laser beam, through cold
But a kind of technology for solidifying and being molded.Under the effect of high laser energy density, metal dust is completely melt, real after cooling
Now it is molded with the metallurgical soldering of solid metal, selective laser melting is exactly based on this process, accumulation layer by layer molds 3D solid.
According to the hierarchy slicing information of molding part three-dimensional CAD model, the powder that scanning system control laser beam is acted in region to be formed
End, after one layer scanned, workbench can decline the distance after a layer, and then powder feed system conveys a certain amount of powder, paving
The powder that the roller of powder system sprawls a thickness is deposited on molded layer.Then, above-mentioned two forming process is repeated, until
The slicing layer of all three-dimensional CAD models is all scanned.
In the prior art, the workbench that selective laser melting equipment is used for laser sintering (SLS) workpiece is generally integral type knot
Structure, powdering is carried out by the entire lowering of integral structure workbench, and carries out workpiece sintering shaping, and based on selective laser
The process characteristic successively processed is melted, on integral type lifting forming workbench, more large-sized thin-walled parts are either shaped,
Powder will finally fill up the height that whole forming workbench declines, and therefore, be accomplished by using in workpiece sintering forming process
Substantial amounts of powder, powder is although recyclable, but also results in substantial amounts of powder, and contains flue dust, not only reduces powder
Quality, powder cost input is big, and laser system is extremely strong to the sensitiveness of dust, dust degree is too high easily cause it is larger
Injury.
Accordingly, it would be desirable to be improved to the workbench of existing selective laser melting, make it can be according to processing part
Size, subregion selection shaping working region, reduces the usage amount of powder, to reduce the input cost of powder, and reduces flue dust
Generation.
The content of the invention
In view of this, the present invention provides a kind of subregion and lifts into form selective laser melting workbench, and it can be according to adding
The size of work part, subregion selection shaping working region, reduces the usage amount of powder, to reduce the input cost of powder, and
Reduce the generation of flue dust.
The subregion of the present invention lifts into form selective laser melting workbench, at least including for powdering and workpiece sintering
The forming table of shaping, forming table include shaping in base station and be coated at shaping in base station and radially from from inside to outside successively overcoat arrange
Base station and the outer base station of each shaping are set in liftable mode at least one outer base station of shaping that row are set, shaping, into
Base station or the outer base station of shaping individually decline or shaped outer base station and be total to base station in base station outside adjacent shaping or/and shaping in shape
With declining be formed powdering region is treated for laser sintering (SLS) workpiece.
Further, in addition to forming table is arranged on along powdering direction at least on the outside of side and for the confession powder platform for powder, supply
Powder platform includes for base station in powder and is coated at for base station in powder and radially from least the one of overcoat spread configuration successively from inside to outside
The outer base station of individual confession powder, is set for base station outside base station in powder and each confession powder in liftable mode, for base station in powder or supplies powder
Outer base station individually rises or can formed for the outer base station of the outer base station of powder and adjacent confession powder or/and for the common rising of base station in powder
For the confession powder region corresponding with treating powdering region.
Further, base station and be identical one in cylinder, triangular prism, square or cuboid for base station in powder in shaping
Plant, base station and the outer base station of each confession powder are respectively with shaping interior base station and supplying base station shape in powder one-to-one outside each shaping
Hollow-core construction.
Further, base station, the outer base station of each shaping, the bottom for base station outside base station in powder and each confession powder are distinguished in shaping
It is provided with least one drive device for being used to drive it each to lift.
Further, for powder platform it is be divided to that row forming table sets in powdering direction both sides two.
Further, in addition to control system, control system includes：
Input block, the sized data for inputting part model to be formed；
Control unit, control unit is connected to receive user input signal with input block, according to input-signal judging
And determine to treat powdering region and for powder region, and control to fill with the fixed driving treated powdering region and supply powder region corresponding
Put work.
Further, drive device is hydraulic jack, and the control system also includes by control unit control and correspondence is each
Hydraulic jack sets one group of fluid power system, and each fluid power system includes：
The number of analog signal output is connected and is converted to the motion parameter data transmitted from control unit with control unit
Word amplifier；
It is connected and is used to receiving analog signal to enter the direction of motion and hydraulic fluid flow rate of hydraulic jack with digital amplifier
The proportional reversing valve of row control；
Being arranged on is used for the displacement transducer for detecting piston rod displacement information on hydraulic jack, the signal of displacement transducer is defeated
Go out end with the signal input part of digital amplifier to be connected.
Beneficial effects of the present invention：The subregion of the present invention lifts into form selective laser melting workbench, forming table
Base station and the outer base station of shaping are liftable structure in shaping, are arranged at due to shaping outer base station overcoat on the outside of the outer base station of shaping simultaneously
For radially from be arranged in order from inside to outside setting at least one, so, overall forming table (in shaping base station and it is all into
The outer base station of shape) the forming platform of an entirety can be collectively forming, can when part is form part (such as ring-shaped work pieces)
According to the moulded dimension of part to be formed need will shaping in base station individually decline or by base station outside single shaping it is independent under
Drop shapes outer base station and declined jointly with the outer base station of adjacent shaping or/and the interior base station of shaping, can be formed be used to processing part into
Shape treats powdering region；Due to treating that powdering region is caused by decline, so in powdering, powder in the presence of scraper only
Fall into and treat in powdering region, form subregion lifting forming workbench structure, so allow for forming table integrally except treating for being formed
Non-processing region outside powdering region no longer covers powder comprehensively, so as to greatly reduce the demand of powder, improves powder
The service efficiency at end, and reduce the generation of dust in laser fusion equipment shaping storehouse.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is overall structure schematic top plan view of the present invention；
Working state schematic representations of the Fig. 2 for the present invention when shaping reduced size thin-walled parts；
Working state schematic representations of the Fig. 3 for the present invention when shaping large-size thin-walled parts；
Fig. 4 fluid power system control principle drawings.
Embodiment
Fig. 1 is overall structure schematic top plan view of the present invention, works of the Fig. 2 for the present invention when shaping reduced size thin-walled parts
Make view, Fig. 3 is the working state schematic representation of the invention when shaping large-size thin-walled parts, as shown in the figure：This
The subregion of embodiment lifts into form selective laser melting workbench, at least including for powdering and workpiece sintering shaping into
Shape platform 1, forming table 1 shapes interior base station and radially from overcoat arrangement successively from inside to outside including shaping interior base station 1-1 and being coated at
At least one set shapes outer base station 1-2, the interior base station 1-1 of shaping and the outer base station 1-2 of each shaping in liftable mode
Set, base station 1-1 or the outer base station 1-2 of shaping individually decline or shaped outer base station 1-2 and base station 1- outside adjacent shaping in shaping
The 2 or/and interior base station 1-1 of shaping declines be formed jointly treats powdering region 2 for laser sintering (SLS) workpiece；The present embodiment
Workbench part in entity can be used, it is possible to use in the thin-walled parts of inner hollow, wherein, in shaping base station 1-1 and
The outer base station 1-2 of shaping is radially overcoat is set successively, diametrically from-inner-to-outer formation multiplet, and the shaping of inner terminal
Outer base station 1-2 and base station 1-1 in shaping, it is adjacent between the outer base station 1-2 of shaping between be to be close to set, in the present embodiment
In, shape outer base station 1-2 and set three, certainly its also can one, two or the integer more than three, wherein, the interior base of shaping
Platform 1-1 and the outer base station 1-2 of each shaping are can oscilaltion setting；When being used in the part of entity, endobasal-body can be passed through
Decline formation jointly with base station 1-2 outside adjacent shaping and treat that powdering region is treated in powdering region 2, or the formation of the entire lowering of forming table 1
2, when being used in interior hollow ring-shaped thin-walled part thermal sintering, according to the size dimension needs of the model of part 3 to be formed, into
Base station 1-1 can individually decline to form powdering region in shape, or the outer base station 1-2 of each shaping individually declines formation and treats powdering region
2, when shaping the larger and thicker thin-walled of part model, base station 1-2 outside the adjacent shaping of two or more can be passed through
Common decline formed and treat powdering region 2, certainly, the overall dimensions of formation of parts model are smaller but during thicker thin-walled, can also lead to
Cross the outer base station 1-2 of shaping adjacent thereto base station 1-1 in shaping and decline formation jointly and treat powdering region 2；In a word, according to actual need
Will, decline regions of the base station 1-1 with shaping outer base station 1-2 in selection shaping.
In the present embodiment, in addition to forming table 1 is arranged on along powdering direction at least side outside and for the confession powder for powder
Platform 4, includes for base station 4-1 in powder and is coated at for base station in powder and radially from overcoat arrangement is set successively from inside to outside for powder platform 4
At least one put is set for the outer base station 4-2 of powder for base station 4-2 outside base station 4-1 in powder and each confession powder in liftable mode
Put, individually rise or for base station 4-2 outside powder and base station 4-2 outside adjacent confession powder for base station 4-1 in powder or for base station 4-2 outside powder
Or/and rising can be formed for the confession powder region 5 corresponding with treating powdering region 2 jointly for base station 4-1 in powder；With forming table
1 principle is similar, for base station 4-1 in powder and the multiple knot that overcoat spread configuration successively is equally constituted radially for base station 4-2 outside powder
Structure, and the outer base station 4-2 of confession powder of inner terminal and for base station 4-1 in powder, it is adjacent between the outer base station 4-2 of confession powder between be tight
Be sticked and put, and for base station 4-1 in powder and for the outer base station 4-2 of powder be can oscilaltion set, wherein, in the present embodiment, supply
The outer base station 4-2 of powder sets three, certainly, and it also can one, two or the integer more than three；Also according to parts to be processed
Model size, for base station 4-1 in powder and carry out selection for base station 4-2 outside powder and rise to constitute different size and adapt to difference
The confession powder region 5 of size, and during actual processing, for powder region 5 with treating that powdering region 2 forms one-to-one relationship.
In the present embodiment, shape interior base station 1-1 and supply base station 4-1 in powder to be cylinder, triangular prism, square or cuboid
Middle identical one kind, the outer base station 1-2 of each shaping and the outer base station 4-2 of each confession powder are respectively with shaping interior base station 1-1 and supplying powder
The interior one-to-one hollow-core construction of base station 4-1 shapes；In the present embodiment, shape interior base station 1-1 and be for base station 4-1 in powder
Solid cylindrical structure, wherein, base station 1-1 diameter is less than or equal to for base station 4-1 diameter dimensions in powder in shaping,
The outer base station 1-2 of shaping and be the hollow-core construction of annular for the outer base station 4-2 of powder, the interior base station 1-1 of shaping, for base station 4-1 in powder, into
The outer base station 1-2 of shape and for the outer base station 4-2 of powder oscilaltion using adjacent base station as guiding.
In the present embodiment, base station 1-1, the outer base station 1-2 of each shaping in shaping, for base station 4-1 in powder and each confession powder outside
Base station 4-2 bottom is respectively arranged with the drive device 6 that at least one is used to drive it each to lift；Drive device 6 is elongation
Hydraulic cylinder, correspondence shapes interior base station 1-1 and respectively sets one to extend hydraulic cylinder, the corresponding outer base of each shaping for base station 4-1 in powder
Platform 1-2 and the outer base station 4-2 of confession powder set two radially symmetrical elongation hydraulic cylinders respectively.
It is be divided to row forming table 1 to be set in powdering direction both sides two for powder platform 4 in the present embodiment；I.e. in forming table 1
Both sides respectively set one for powder platform 4, can be used scraper 7 to scrape powder to treating in powdering region 2 in both sides to facilitate.
In the present embodiment, in addition to control system, control system includes：
Input block 9, the sized data for inputting part model to be formed；Input block 9 can be industrial computer, or its
He is used for the input unit for receiving user input data；
Control unit 10, control unit is connected to receive user input signal with input block 9, is sentenced according to input signal
Break and determine to treat powdering region 2 and for powder region 5, and control to treat powdering region 2 and corresponding for powder region 5 with fixed
Drive device 6 works；Control unit is programmable controller, usually single-chip microcomputer, and control unit receives the input data of user
And the kinematic parameter of correspondence drive device is converted into, specific transfer process is achieved by the prior art, and this is not related to herein
Partial improvement.
In the present embodiment, drive device is hydraulic jack, and the control system is also including by control unit control and correspondingly
Each hydraulic jack sets one group of fluid power system, and each fluid power system includes：
The number of analog signal output is connected and is converted to the motion parameter data transmitted from control unit with control unit
Word amplifier 11；
It is connected and is used to receiving analog signal to enter the direction of motion and hydraulic fluid flow rate of hydraulic jack with digital amplifier
The proportional reversing valve 12 of row control；
Being arranged on is used for the displacement transducer 13 for detecting piston rod displacement information on hydraulic jack, institute's displacement sensors
Signal output part is connected with the signal input part of the digital amplifier；
Wherein, each fluid power system all includes digital amplifier, displacement transducer and proportional reversing valve, and numeral is put
Big device is integrated structure, and each fluid power system carries out data cube computation by respective digital amplifier and control unit,
The model data that input block 9 is inputted according to user sends instruction, and control unit passes through data processing, and each hydraulic pressure will be controlled to drive
The kinematic parameter of dynamic system sends the digital amplifier of correspondence fluid power system to, and digital amplifier is joined to the motion received
Number data carry out data conversion, and corresponding analog signal is conveyed into proportional reversing valve, and proportional reversing valve is carried out to hydraulic jack
Direction and the control of hydraulic fluid flow rate, displacement transducer carry out the positional information of piston rod to feed back to digital amplifier, so that
Form closed-loop control.
Exemplified by processing annular thin-walled parts, the operation principle to the workbench of the present invention is illustrated：Workbench is
Multiple annular self-powered platform, powder is installed additional for powder platform 4, and forming table 1 is formed in formation of parts in the presence of laser galvanometer 8,
In process, for powder platform 4, motion supplies powder upwards, and forming table 1 declines a thickness, and scraper 7 spreads into powder from for powder platform 4
In forming table 1, forming table 1 and for powder platform 4 lifting by Driven by Hydraulic Cylinder, movable workbench be oriented to by each annular base station it
Between cooperation.
When processing the Circular Thin part of different sizes, the system of laser galvanometer 8 can scan forming table 1 from shaping
Base station 1-1 shapes outer base station 1-2 entire scope to most external, when the geomery of processing annular thin-walled parts is in shaping
When in base station 1-1 regional extents, before processing, the Driven by Hydraulic Cylinder for the setting corresponding with base station 4-1 in confession powder of powder platform 4 supplies powder
Interior base station 4-1, which declines, installs powder additional, after processing starts, rises for base station 4-1 regions in powder and supplies powder, base station 1-1 is at it in shaping
Decline a thickness under the driving for the hydraulic cylinder being correspondingly arranged, scraper 7 is moved, the powder for base station 4-1 regions in powder is sprawled
In to shaping in base station 1-1 region, the Systematic selection of laser galvanometer 8 irradiation sintered powder has been sintered after one layer, scraper 7
Reset, continue to scrape powder, so repeatedly, shape thin-wall part entity；When the geomery of processing thin-walled parts is at one of forming table 1
The confession powder for supplying powder platform 4 corresponding with shaping outer base station 1-2 regional locations when in the outer base station 1-2 regional extents of shaping, before processing
Outer base station 4-2, which declines, installs powder additional, after processing starts, and the outer base station 4-2 regions of confession powder declined, which rise, supplies powder, shapes outer base station
1-2 synchronously declines a thickness, and scraper 7 is moved, and the powder for base station 4-2 regions outside powder is spread into the outer base station 1-2's of shaping
Decline in region, the Systematic selection of laser galvanometer 8 irradiation sintered powder has sintered after one layer, scraper 7 resets, continued to scrape powder,
So repeatedly, thin-wall part entity is shaped.Similarly, remaining shapes outer base station 1-2 and shaped outside outer base station 1-2 and adjacent shaping
The principle of base station 1-2 or/and the interior base station 1-1 drape forming workpiece of shaping is same as described above.
Lifting into form selective laser melting workbench by the subregion of the present invention can be according to thin-walled parts to be formed
Size, subregion lifting is for powder platform 4, subregion lifting forming table 1, to form the part to be formed 3 for being applicable different sizes,
The demand of powder is greatly reduced, and improves powder service efficiency.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (7)
1. a kind of subregion lifts into form selective laser melting workbench, it is characterised in that：At least include being used for powdering and work
The forming table of part thermal sintering, the forming table shapes interior base station and radially from from inside to outside including shaping interior base station and being coated at
Successively at least one of overcoat spread configuration shape in outer base station, the shaping base station and each shaping outside base station with can
The mode of lifting is set, in the shaping the outer base station of base station or the shaping individually decline or shape outer base station and it is adjacent into
Base station declines be formed jointly in the outer base station of shape or/and shaping treats powdering region for laser sintering (SLS) workpiece.
2. subregion according to claim 1 lifts into form selective laser melting workbench, it is characterised in that：Also include
Forming table is arranged on along powdering direction at least side outside and for the confession powder platform for powder, the confession powder platform is included for base station in powder
Be coated at for base station in powder and radially from from inside to outside successively at least one of overcoat spread configuration for base station, the confession outside powder
Base station and the outer base station of each confession powder are set in liftable mode in powder, base station or the outer base of the confession powder in the confession powder
Platform individually rises or is used for for the outer base station of the outer base station of powder and adjacent confession powder or/and can be formed for the common rising of base station in powder
The confession powder region corresponding with treating powdering region.
3. subregion according to claim 2 lifts into form selective laser melting workbench, it is characterised in that：It is described into
Base station is that identical is a kind of in cylinder, triangular prism, square or cuboid in base station and the confession powder in shape, it is each it is described into
Base station and the outer base station of each confession powder are respectively with shaping interior base station and supplying base station shape in powder hollow correspondingly outside shape
Structure.
4. subregion according to claim 3 lifts into form selective laser melting workbench, it is characterised in that：It is described into
Base station in shape, the outer base station of each shaping, the bottom of base station and the outer base station of each confession powder is set respectively in the confession powder
There is at least one drive device for being used to drive it each to lift.
5. the subregion according to claim 1-4 any claims lifts into form selective laser melting workbench, its
It is characterised by：The confession powder platform is be divided to the row forming table to be set in powdering direction both sides two.
6. subregion according to claim 5 lifts into form selective laser melting workbench, it is characterised in that：Also include
Control system, the control system includes：
Input block, the sized data for inputting part model to be formed；
Control unit, control unit and input block are connected to receive user input signal, according to input-signal judging and true
Surely treat powdering region and for powder region, and control to treat the corresponding drive device work in powdering region and confession powder region with fixed
Make.
7. subregion according to claim 6 lifts into form selective laser melting workbench, it is characterised in that：It is described to drive
Dynamic device is hydraulic jack, and the control system also includes by control unit control and each hydraulic jack of correspondence sets one group
Fluid power system, each fluid power system includes：
The numeral for being connected with control unit and the motion parameter data transmitted from control unit being converted into analog signal output is put
Big device；
It is connected with digital amplifier and is used to receiving analog signal and the direction of motion and hydraulic fluid flow rate of hydraulic jack is controlled
The proportional reversing valve of system；
Being arranged on is used for the displacement transducer for detecting piston rod displacement information on hydraulic jack, the signal of institute's displacement sensors is defeated
Go out end with the signal input part of the digital amplifier to be connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669903.2A CN107262717B (en) | 2017-08-08 | 2017-08-08 | Subregion is gone up and down into form selective laser melting workbench |
| PCT/CN2017/108084 WO2019029022A1 (en) | 2017-08-08 | 2017-10-27 | Partitioned lifting forming type selective laser melting workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669903.2A CN107262717B (en) | 2017-08-08 | 2017-08-08 | Subregion is gone up and down into form selective laser melting workbench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107262717A true CN107262717A (en) | 2017-10-20 |
| CN107262717B CN107262717B (en) | 2019-08-06 |
Family
ID=60076933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710669903.2A Active CN107262717B (en) | 2017-08-08 | 2017-08-08 | Subregion is gone up and down into form selective laser melting workbench |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107262717B (en) |
| WO (1) | WO2019029022A1 (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN115107274B (en) * | 2022-07-06 | 2024-05-17 | 重庆大学 | 3D printing device and printing method thereof |
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| WO2019029022A1 (en) | 2019-02-14 |
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