CN106180714B - Downstriker powder feed system - Google Patents
Downstriker powder feed system Download PDFInfo
- Publication number
- CN106180714B CN106180714B CN201610712385.3A CN201610712385A CN106180714B CN 106180714 B CN106180714 B CN 106180714B CN 201610712385 A CN201610712385 A CN 201610712385A CN 106180714 B CN106180714 B CN 106180714B
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- China
- Prior art keywords
- powder
- powder feeding
- feeding storehouse
- forming bin
- guide rail
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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
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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
- B22F10/20—Direct sintering or melting
-
- 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
- B22F10/10—Formation of a green body
-
- 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
- B22F12/33—Platforms or substrates translatory in the deposition plane
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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
- B22F12/40—Radiation means
- B22F12/49—Scanners
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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
- 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
- B22F12/52—Hoppers
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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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Transmission Devices (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses forming bin is equipped in the middle part of a kind of downstriker powder feed system, including pedestal, pedestal, forming bin both sides are respectively equipped with a powder feeding storehouse, and side of the powder feeding storehouse far from formable layer storehouse is respectively equipped with a storage powder bottle；Forming bin, powder feeding storehouse, storage powder bottle is arranged side by side and close-packed arrays, and pedestal is equipped with the power spreading device that powdering is recycled between two storage powder bottles；The powder feeding storehouse, the equal upper end of forming bin are open and concordant, bottom is equipped with movable floor in powder feeding storehouse, double guide post linear motion units that driving movable floor moves up and down are equipped with below powder feeding storehouse, it is equipped with horizontal two degrees of freedom fine adjustment stage in the forming bin, the double guide rail linear motion units for driving it to move up and down are equipped with below forming bin.A unidirectional powdering in working cycles is changed to two-way powdering twice by the present invention, effectively increases the forming efficiency of 3D printing equipment.Moreover, increased structure member is still applicable on traditional equipment, it is very convenient to the upgrading of retrospective installation.
Description
Technical field
The present invention relates to a kind of powder feeding mechanism more particularly to a kind of downstriker powder feed systems.
Background technology
Selective laser melting technology（SLM, Selective laser melting）It is one kind of increases material manufacturing technology,
Be metal powder be completely melt under the heat effect of laser beam, molding a kind of technology through cooled and solidified.With 3D printing skill
The continuous innovation of art and the diversified development of printed material, this new technology be widely used in industrial circle, military field,
Medical domain and consumer field.
Several big systems of SLM type laser 3D printing device, which form, includes：Laser scanning system, atmosphere control system send paving
Powder system etc..Powdering system is sent directly to determine equipment operation efficiency and forming accuracy as one of Major Systems composition.
Different according to powder feeding motion mode, mainstream automatic powder feeding system is roughly divided into uplink powder feeding and downlink powder feeding two major classes：Powder
Storehouse be arranged above powdering scraper and powder in powder cabin from top to bottom movement be uplink powder feeding, on the contrary it is then be downlink powder feeding.
Unidirectional powdering is generally using the powder feed system of downlink automatic powder feeding system, i.e. powdering is primary in a working cycles, laser scanning one
It is secondary, therefore forming efficiency is than relatively limited.
Under traditional mode, downstriker powder feed system is set there are three powder cabin, and centre is forming storehouse, and both sides are respectively then powder feeding storehouse
With receipts powder cabin.Each working cycles totally four work steps：Powder feeding storehouse, which rises, first sends out a certain amount of powder to work top, then scrapes
Knife is moved from powder feeding storehouse one end to powder cabin one end is received, and uniform powdering is set in scanning area, then by laser scanning system according to program
Surely given area is scanned, powder is melted and be sintered, last scraper counter motion is back to initial position, completes a working cycles.
In this way, in a working cycles, laser scanning system only has single pass, working efficiency low.
Invention content
The purpose of the present invention is that providing one kind solves the above problems, and effectively increases the forming efficiency of 3D printing equipment
And the downstriker powder feed system of forming accuracy.
To achieve the goals above, the technical solution adopted by the present invention is such：A kind of downstriker powder feed system, including
Forming bin is equipped in the middle part of pedestal, pedestal, forming bin both sides are respectively equipped with a powder feeding storehouse, side of the powder feeding storehouse far from formable layer storehouse point
It She You not a storage powder bottle；Forming bin, powder feeding storehouse, storage powder bottle is arranged side by side and close-packed arrays, and pedestal is equipped between two storage powder bottles
Recycle the power spreading device of powdering；
The powder feeding storehouse, the equal upper end of forming bin are open and concordant, and bottom is equipped with movable floor, powder feeding storehouse lower section in powder feeding storehouse
Equipped with double guide post linear motion units that driving movable floor moves up and down, the movable floor outer wall is matched with powder feeding storehouse inner wall
And it is slidably matched；It is equipped with horizontal two degrees of freedom fine adjustment stage in the forming bin, is equipped with below forming bin and it is driven to transport up and down
Dynamic double guide rail linear motion units, the two degrees of freedom fine adjustment stage outer wall are matched and are slidably matched with forming bin inner wall.
As preferred：Double guide post linear motion units include the first lead screw pair being vertically arranged, first leading screw
Pair includes the first leading screw and the first nut, and the first nut lower part connects a substrate, and the first leading screw both ends are fixedly connected with horizontal
Connecting plate, both sides are equipped with vertical linear bearing, and the linear bearing and the first leading screw both pass through substrate, and linear bearing both ends
It is fixedly connected with fixed plate, the first lead screw pair side is additionally provided with the first driving mechanism of driving nut rotation.
As preferred：Double guide rail linear motion units include the mounting base being vertically arranged, the second lead screw pair and support
Frame, second lead screw pair include the second leading screw and the second nut, and the second leading screw is located at one Middle face of mounting base, the second lead screw bottom
Portion's connection one drives the second driving mechanism of its rotation, and a guide rail connection parallel with mounting base is socketed with outside the second nut
Plate, is equipped with two groups of slide track components between the guide rail splice and mounting base, the slide track component is symmetrically distributed in the second leading screw two
Side, including sliding rail and sliding block, wherein sliding rail are fixed in mounting base, and sliding block is fixed with guide rail splice, and sliding block is slided with sliding rail
Dynamic cooperation；It is equipped with a mandril at the top of guide rail splice, is connect with two degrees of freedom fine adjustment stage bottom at the top of the mandril；
Support frame as described above includes horizonal base plate and the vertical stand that is fixed under horizonal base plate, and mounting base is backwards to the second leading screw
It is fixed on one side with vertical stand, is provided with through-hole at the top of horizonal base plate, mandril can be passed through from through-hole.
As preferred：First driving mechanism is driven for servo motor driving belt pulley, and belt pulley drives nut rotation；
Substrate on double guide post linear motion units is equipped with displacement sensor.
As preferred：Second driving mechanism is driven for servo motor driving belt pulley, and the second leading screw bottom is equipped with one
Pedestal, belt pulley drive pedestal rotation to drive the rotation of the second leading screw, the guide rail connection of double guide rail linear motion units
Also there is displacement sensor on plate.
As preferred：Funnel is equipped at the top of the storage powder bottle, and funnel is concordant with powder feeding the top of the warehouse, funnel and storage powder
Bottle is connected to by tube body.
As preferred：The two degrees of freedom fine adjustment stage includes upper layer and lower layer, and the upper layer is movable plate, and lower layer is to fix
Plate, sets the flexural pivot there are three the orthogonal thereto distribution of centre of sphere line between movable plate and fixed plate, the flexural pivot includes ball seat, sphere and consolidates
The ball seat of the connecting rod being scheduled on sphere, flexural pivot is connect with movable plate, wherein the connecting rod of a flexural pivot passes through counter flange and fixation
Plate connects, the connecting rod of remaining flexural pivot connects a differential screw feed mechanism, the differential screw feed mechanism pass through fixed plate with
Connecting rod connects.
Compared with the prior art, the advantages of the present invention are as follows：
Wherein, two degrees of freedom fine adjustment stage is set in forming bin, and two degrees of freedom fine adjustment stage is fed using differential screw
Mechanism, feed of every rotation is only related with pitch difference, and unrelated with screw pitch, and pitch difference can be designed sufficiently small to ensure high point
Resolution under the state of the art, can accomplish that feed of every rotation is less than 0.1mm, and two degrees of freedom fine adjustment stage includes one solid
Fixed point and two moving points that can be adjusted up and down, leveling precision are very high；
Double guide post linear motion units in addition to standarized component ball screw and linear bearing, nonstandard part only have connecting plate with
Substrate, and its shape very simple, therefore overall structure is very simple and reliable, quite convenient for modularization and standardization and cost
Control, it is very applicable in the occasion for only needing to ensure to be axially moved precision.
Double guide rail linear motion units use the structure that two spherical guides are embedded in ontology, due to ontology stiffness by itself
It is very high so that push rod is not only axially moved precision height, but also rigidity is also fine in the horizontal direction, is used as forming bin fine tuning
The driving mechanism of platform meets real work needs very much, and modular structure design mode is more advantageous to its standardization and big
Batch production, it is also very useful in the similar other occasions of operating mode.
In addition of the invention, compare traditional structure, this system by the unidirectional powdering in working cycles be changed to it is two-way twice
Powdering effectively increases the forming efficiency of 3D printing equipment.Moreover, increased structure member is still applicable on traditional equipment,
It is very convenient to the upgrading of retrospective installation.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is double guide post linear motion units；
Fig. 3 is double guide rail linear motion units；
Fig. 4 is the structural schematic diagram of supporting rack in Fig. 3；
Fig. 5 is the vertical view of two degrees of freedom fine adjustment stage；
Fig. 6 is the front view of two degrees of freedom fine adjustment stage；
Fig. 7 is the sectional view of differential screw feed mechanism in Fig. 6.
In figure：1, pedestal；2, forming bin；3, powder feeding storehouse；4, powder bottle is stored up；401, funnel；402, tube body；5, double guide post straight lines
Moving cell；501, the first leading screw；502, the first nut；503, substrate；504, connecting plate；505, linear bearing；506, first
Driving mechanism；507, displacement sensor；6, double guide rail linear motion units；601, the second leading screw；602, mandril；603, guide rail connects
Fishplate bar；604, slide track component；605, mounting base；606, horizonal base plate；607, vertical stand；7, two degrees of freedom fine adjustment stage；701、
Movable plate；702, fixed plate；703, flexural pivot；704, differential screw feed mechanism；705, fixing nut；706, guide sleeve；707、
Servo motor；708, traveling nut；709, screw rod；710, the gap that disappears nut；711, gasket.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings.
Embodiment 1：Referring to Fig. 1 to Fig. 5, a kind of downstriker powder feed system, including pedestal 1,1 middle part of pedestal are equipped with forming bin
2,2 both sides of forming bin are respectively equipped with a powder feeding storehouse 3, and side of the powder feeding storehouse 3 far from formable layer storehouse 2 is respectively equipped with a storage powder bottle 4；At
Type storehouse 2, powder feeding storehouse 3, storage powder bottle 4 is arranged side by side and close-packed arrays, and pedestal 1 is equipped with the paving that powdering is recycled between two storage powder bottles 4
Powder device；
The powder feeding storehouse 3,2 equal upper end of forming bin are open and concordant, and bottom is equipped with movable floor, powder feeding storehouse 3 in powder feeding storehouse 3
Lower section is equipped with double guide post linear motion units 5 that driving movable floor moves up and down, in the movable floor outer wall and powder feeding storehouse 3
Wall is matched and is slidably matched；Horizontal two degrees of freedom fine adjustment stage 7 is equipped in the forming bin 2,2 lower section of forming bin is equipped with driving
Its move up and down double guide rail linear motion units 6,7 outer wall of two degrees of freedom fine adjustment stage matched with 2 inner wall of forming bin and
It is slidably matched.
In the present embodiment, double guide post linear motion units 5 include the first lead screw pair for being vertically arranged, described first
Thick stick pair includes the first leading screw 501 and the first nut 502, and 502 lower part of the first nut connects a substrate 503,501 both ends of the first leading screw
It is fixedly connected with horizontal connecting plate 504, both sides are equipped with vertical linear bearing 505, the linear bearing 505 and the first leading screw
501 both pass through substrate 503, and 505 both ends of linear bearing are fixedly connected with fixed plate 702, and the first lead screw pair side is additionally provided with
Drive the first driving mechanism 506 of nut rotation；Double guide rail linear motion units 6 include be vertically arranged mounting base 605,
Second lead screw pair and supporting rack, second lead screw pair include the second leading screw 601 and the second nut, and the second leading screw 601 is located at peace
605 1 Middle face of seat is filled, the second lead screw bottom connection one drives the second driving mechanism of its rotation, is socketed with outside the second nut
One guide rail splice 603 parallel with mounting base 605 is equipped with two groups of slide rail groups between the guide rail splice 603 and mounting base 605
Part 604, the slide track component 604 are symmetrically distributed in 601 both sides of the second leading screw, including sliding rail and sliding block, and wherein sliding rail is fixed on
In mounting base 605, sliding block is fixed with guide rail splice 603, and sliding block is slidably matched with sliding rail；603 top of guide rail splice is set
There are a mandril 602,602 top of the mandril to be connect with 7 bottom of two degrees of freedom fine adjustment stage；
Support frame as described above includes horizonal base plate 606 and the vertical stand 607 that is fixed on horizonal base plate 606 under, the back of the body of mounting base 605
It is fixed to the one side of the second leading screw 601 with vertical stand 607,606 top of horizonal base plate is provided with through-hole, and mandril 602 can be from through-hole
It passes through；First driving mechanism 506 is driven for 707 driving belt pulley of servo motor, and belt pulley drives nut rotation；It is described double
Substrate 503 on guide post linear motion unit 5 is equipped with displacement sensor 507；Second driving mechanism is servo motor 707
Driving belt pulley is driven, and 601 bottom of the second leading screw is equipped with a pedestal, and belt pulley drives pedestal rotation to drive the second leading screw
601 rotate, and also have displacement sensor 507 on the guide rail splice 603 of double guide rail linear motion units 6；The storage powder bottle 4
Top is equipped with funnel 401, and 401 top of funnel is concordant with 3 top of powder feeding storehouse, and funnel 401 and storage powder bottle 4 are connected by tube body 402
It is logical；The two degrees of freedom fine adjustment stage 7 includes upper layer and lower layer, and the upper layer is movable plate 701, and lower layer is fixed plate 702, activity
The flexural pivot 703 there are three the orthogonal thereto distribution of centre of sphere line is set between plate 701 and fixed plate 702, the flexural pivot 703 includes ball seat, ball
Body and the connecting rod being fixed on sphere, the ball seat of flexural pivot 703 is connect with movable plate 701, wherein the connecting rod of a flexural pivot 703 passes through
Counter flange is connect with fixed plate 702, and the connecting rod of remaining flexural pivot 703 connects a differential screw feed mechanism 704, the differential spiral shell
Rotation feed mechanism 704 is connect across fixed plate 702 with connecting rod.
Wherein, the differential screw feed mechanism 704 includes fixing nut 705, guide sleeve 706, servo motor 707, lives
Dynamic nut 708 and screw rod 709, wherein fixing nut 705 is connected and fixed with guide sleeve 706 with screw, the company of servo motor 707
Acting flange is connected and fixed with fixing nut 705, and traveling nut 708 then only limits its relative rotation in guide sleeve 706 with flat key,
Can in the axial direction be moved in 706 hole of guide sleeve, 709 both ends screw thread of screw rod respectively with fixing nut 705 and activity
The internal thread of nut 708 screws, and disappear gap nut 710 and gasket 711 is used in combination to eliminate backlass when it is screwed, in screw rod 709
Hole is equipped with keyway, is slidably matched with 707 axis of servo motor and key.708 other end of traveling nut then connects flexural pivot with studs
703, it is convenient to be connected with other loads；The guide sleeve 706 of differential screw feed mechanism 704 then passes through with the movable plate of platform 701
Screw connects；
When servo motor 707 drives the screw rod 709 of feed mechanism to rotate, the traveling nut 708 of differential screw mechanism
Flexural pivot 703 can be driven to move up and down, and then change the level inclination of platform activity plate 701, to achieve the purpose that leveling；
By taking right-handed thread as an example, fixing nut 705 is fixed over the ground after being connect with servo motor 707, when servo motor 707 drives
When dynamic screw rod 709 rotates clockwise, screw rod 709 is screwed with fixing nut 705 and opposite its moves up, at the same time, living
Dynamic nut 708 is screwed with screw rod 709 and opposite its moves down.In this way, the reality of traveling nut 708 over the ground displacement just by this two
A relative movement is formed by stacking, i.e., as previously mentioned, screw rod 709 often rotates a circle, the real axis displacement of traveling nut 708 is solid
Determine the difference of 708 screw pitch of nut 705 and traveling nut, if difference is just, moves up, difference is negative, then moves down.
The each working cycles of the present invention totally six work steps：Side powder feeding storehouse 3, which rises, sends out a certain amount of powder to work top,
Then the scraper of power spreading device moves powdering to other side powder feeding storehouse 3, and excessive powder is collected by receipts powder bottle, then simultaneously by laser scanning
Powder is melted, then, powder feeding storehouse 3, which rises, sends out powder to work top, and scraper counter motion powdering is back to initial position, and by
It receives powder bottle and collects excessive powder, laser alignment rescan completes a working cycles.In this way, in a working cycles, laser is swept
It retouches system and shares twice sweep, be effectively improved working efficiency.
Claims (6)
1. a kind of downstriker powder feed system, it is characterised in that：Including being equipped with forming bin, forming bin both sides point in the middle part of pedestal, pedestal
Not She You a powder feeding storehouse, side of the powder feeding storehouse far from forming bin is respectively equipped with a storage powder bottle；Forming bin, powder feeding storehouse, storage powder bottle are simultaneously
Row's setting and close-packed arrays, pedestal are equipped with the power spreading device that powdering is recycled between two storage powder bottles；
The powder feeding storehouse, the equal upper end of forming bin are open and concordant, and bottom is equipped with movable floor in powder feeding storehouse, is equipped with below powder feeding storehouse
The double guide post linear motion units for driving movable floor to move up and down, the movable floor outer wall are matched and are slided with powder feeding storehouse inner wall
Dynamic cooperation；The forming bin is interior to be equipped with horizontal two degrees of freedom fine adjustment stage, is equipped with below forming bin and drives its up and down motion
Double guide rail linear motion units, the two degrees of freedom fine adjustment stage outer wall are matched and are slidably matched with forming bin inner wall；
Double guide rail linear motion units include the mounting base being vertically arranged, the second lead screw pair and supporting rack, described second
Thick stick pair includes the second leading screw and the second nut, and the second leading screw is located at one Middle face of mounting base, one driving of the second lead screw bottom connection
Its second driving mechanism rotated is socketed with a guide rail splice parallel with mounting base, the guide rail company outside the second nut
Two groups of slide track components are equipped between fishplate bar and mounting base, the slide track component is symmetrically distributed in the second leading screw both sides, including sliding rail and
Sliding block, wherein sliding rail are fixed in mounting base, and sliding block is fixed with guide rail splice, and sliding block is slidably matched with sliding rail；Guide rail connects
It is equipped with a mandril at the top of fishplate bar, is connect with two degrees of freedom fine adjustment stage bottom at the top of the mandril；
Support frame as described above includes horizonal base plate and the vertical stand that is fixed under horizonal base plate, one side of the mounting base backwards to the second leading screw
It is fixed with vertical stand, is provided with through-hole at the top of horizonal base plate, mandril can be passed through from through-hole；
The power spreading device includes scraper, and the work step of the downstriker powder feed system is：
（1）Side powder feeding storehouse, which rises, sends out a certain amount of powder to work top, and then the scraper of power spreading device is to other side powder feeding
Powdering is moved in storehouse, and excessive powder is collected by storage powder bottle, then by laser scanning and melts powder；
（2）Powder feeding storehouse, which rises, sends out powder to work top, and scraper counter motion powdering is back to initial position, and is received by storage powder bottle
Collect excessive powder, laser alignment rescan.
2. downstriker powder feed system according to claim 1, it is characterised in that：Double guide post linear motion units include
The first lead screw pair being vertically arranged, first lead screw pair include the first leading screw and the first nut, the first nut lower part connection one
Substrate, the first leading screw both ends are fixedly connected with horizontal connecting plate, and both sides are equipped with vertical linear bearing, the linear bearing and
First leading screw both passes through substrate, and linear bearing both ends are fixedly connected with fixed plate, and the first lead screw pair side is additionally provided with driving
First driving mechanism of nut rotation.
3. downstriker powder feed system according to claim 2, it is characterised in that：First driving mechanism is servo motor
Driving belt pulley is driven, and belt pulley drives nut rotation；Substrate on double guide post linear motion units is passed equipped with displacement
Sensor.
4. downstriker powder feed system according to claim 1, it is characterised in that：Second driving mechanism is servo motor
Driving belt pulley is driven, and the second leading screw bottom is equipped with a pedestal, and belt pulley drives pedestal rotation to drive the rotation of the second leading screw,
Also there is displacement sensor on the guide rail splice of double guide rail linear motion units.
5. downstriker powder feed system according to claim 1, it is characterised in that：Funnel is equipped at the top of the storage powder bottle, and
Funnel is concordant with powder feeding the top of the warehouse, and funnel is connected to storage powder bottle by tube body.
6. downstriker powder feed system according to claim 1, it is characterised in that：The two degrees of freedom fine adjustment stage includes upper
Lower two layers, the upper layer is movable plate, and lower layer is fixed plate, sets that there are three orthogonal thereto point of centre of sphere lines between movable plate and fixed plate
The flexural pivot of cloth, the flexural pivot include ball seat, sphere and the connecting rod being fixed on sphere, and the ball seat of flexural pivot is connect with movable plate,
Wherein the connecting rod of a flexural pivot is connect by counter flange with fixed plate, and the connecting rod of remaining flexural pivot connects a differential screw and feeds machine
Structure, the differential screw feed mechanism are connect across fixed plate with connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712385.3A CN106180714B (en) | 2016-08-24 | 2016-08-24 | Downstriker powder feed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712385.3A CN106180714B (en) | 2016-08-24 | 2016-08-24 | Downstriker powder feed system |
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| Publication Number | Publication Date |
|---|---|
| CN106180714A CN106180714A (en) | 2016-12-07 |
| CN106180714B true CN106180714B (en) | 2018-09-18 |
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| CN201610712385.3A Active CN106180714B (en) | 2016-08-24 | 2016-08-24 | Downstriker powder feed system |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405859B (en) * | 2018-04-25 | 2019-02-15 | 柳州坚瑞新材料科技有限公司 | A kind of multi link formula stepping power metallurgy equipment |
| CN109732469B (en) * | 2019-03-13 | 2020-02-04 | 烟台工程职业技术学院(烟台市技师学院) | Friction stir vibration material disk machine |
| CN110899699B (en) * | 2019-12-22 | 2022-02-15 | 安徽哈特三维科技有限公司 | Selective laser melting device for machining forming die |
| CN111097909A (en) * | 2020-01-10 | 2020-05-05 | 西安朗悦智能科技有限公司 | Lifting device with variable cylinder diameter |
| CN111940733B (en) * | 2020-07-20 | 2021-04-20 | 北京科技大学 | Device and method for removing splashed oxide and compensating powder supply in selective laser melting process |
| CN112170838B (en) * | 2020-08-24 | 2022-02-15 | 江苏大学 | Material increasing and decreasing manufacturing device and material increasing and decreasing composite manufacturing method thereof |
| CN113369895B (en) * | 2021-05-31 | 2022-12-09 | 西安交通大学 | Five-axis material increase and decrease composite manufacturing equipment for powder bed |
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|---|---|---|---|---|
| JP4996672B2 (en) * | 2009-12-18 | 2012-08-08 | 株式会社アマダ | 3D object manufacturing equipment |
| CN203209690U (en) * | 2013-04-27 | 2013-09-25 | 余振新 | Longitudinal movement device for selective laser sintering forming platform |
| CN103862045B (en) * | 2014-03-13 | 2017-01-18 | 湖南华曙高科技有限责任公司 | Powder supplying and spreading method of quick forming equipment |
| CN103949636B (en) * | 2014-05-05 | 2016-05-04 | 湖南华曙高科技有限责任公司 | A kind of quick molding method of laser fast shaping device |
| CN105039970B (en) * | 2015-07-02 | 2017-10-20 | 西安交通大学 | A kind of replaceable powder cylinder double light beam laser selective melting former |
| CN204818062U (en) * | 2015-07-06 | 2015-12-02 | 山西省交通科学研究院 | Nearly clean former of laser based on parallel mechanism |
| CN204799942U (en) * | 2015-07-28 | 2015-11-25 | 昆明七零五所科技发展总公司 | Laser sintering 3D printer |
| CN205393539U (en) * | 2016-02-22 | 2016-07-27 | 上海拓宝机电科技有限公司 | Selectivity laser sintering shaping jar and selectivity laser sintering forming device |
| CN205437144U (en) * | 2016-03-01 | 2016-08-10 | 湖南华曙高科技有限责任公司 | Be used for making three -dimensional body equipment and cylinder body drive arrangement thereof |
| CN105855547B (en) * | 2016-06-07 | 2017-12-01 | 青岛前哨精密机械有限责任公司 | A kind of automatic fine motion leveling system of 3D printer substrate |
-
2016
- 2016-08-24 CN CN201610712385.3A patent/CN106180714B/en active Active
Also Published As
| Publication number | Publication date |
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| CN106180714A (en) | 2016-12-07 |
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