CN109550956A - Laser melting unit suitable for middle-size and small-size 3D printing - Google Patents
Laser melting unit suitable for middle-size and small-size 3D printing Download PDFInfo
- Publication number
- CN109550956A CN109550956A CN201811625573.8A CN201811625573A CN109550956A CN 109550956 A CN109550956 A CN 109550956A CN 201811625573 A CN201811625573 A CN 201811625573A CN 109550956 A CN109550956 A CN 109550956A
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- size
- formation cylinder
- printing
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- 238000002844 melting Methods 0.000 title claims abstract description 22
- 230000008018 melting Effects 0.000 title claims abstract description 21
- 238000010146 3D printing Methods 0.000 title claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 17
- 238000000465 moulding Methods 0.000 claims abstract description 14
- 238000002834 transmittance Methods 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 36
- 230000007246 mechanism Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 16
- 230000003028 elevating effect Effects 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000011261 inert gas Substances 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 4
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 239000000155 melt Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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
- B22F12/22—Driving means
- B22F12/226—Driving means for rotary motion
-
- 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
-
- 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
- B22F12/70—Gas flow means
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a kind of laser melting units suitable for middle-size and small-size 3D printing, at least two Laser stoves-formation cylinder system is fixed on fixed frame, Laser stove-formation cylinder system includes Laser stove and moulding cylinder, transmittance section is equipped on the upside of Laser stove, it is tightly connected on the downside of Laser stove with moulding cylinder, powder feeder unit is additionally provided in Laser stove, laser can be emitted respectively by moving the laser-galvanometer system being installed on fixed frame, laser be able to inject Laser stove inner focusing through hyalomere, control system controls each component work in laser-galvanometer system and Laser stove-formation cylinder system, control system also controls Laser stove-formation cylinder system motion, the present invention most gives full play to the function of laser beam flying, substantially increase laser forming efficiency, reduce laser fusing former use cost.
Description
Technical field
The present invention relates to a kind of metal 3D printer forming box, in particular to a kind of laser suitable for middle-size and small-size 3D printing
Melting unit.
Background technique
SLM (selective laser melting) technique have the shortcomings that one it is great, i.e., every time forming (laser is in the shape of work
State) after, it need to carry out largely clearing up preparation, laser-galvanometer system is in the idle shape of idle state at this time
State.Current SLM device enters industrial application from laboratory, need to greatly improve forming efficiency, more exacerbate raising
The cry of SLM device efficiency.
Currently, being equipped with more galvanometers using multi-laser in laser-formation system --- more laser-galvanometer systems, into one
Step improves forming speed, more becomes one of the trend of SLM development.But multi-laser beam-galvanometer system (such as 2~6 laser beams) is
Expensive component, accounts for about the 40% of totle drilling cost.
Summary of the invention
In order to make up the above deficiency, the present invention provides a kind of laser melting units suitable for middle-size and small-size 3D printing, should
The forming efficiency of laser melting unit suitable for middle-size and small-size 3D printing is high, and use cost is low.
The present invention is to solve technical solution used by its technical problem: a kind of swashing suitable for middle-size and small-size 3D printing
Light melting unit, including fixed frame, laser-galvanometer system, Laser stove-formation cylinder system and control system, at least two laser
Furnace-formation cylinder system is fixed on fixed frame, and Laser stove-formation cylinder system includes Laser stove and moulding cylinder, shape in Laser stove
At the formingspace of sealing, it is equipped with the transmittance section with formingspace face on the upside of Laser stove, is sealed on the downside of Laser stove with moulding cylinder
Connection, the piston of formation cylinder form the hoistable platform that can be aligned with Laser stove inside bottom surface, are additionally provided with powder feeder unit in Laser stove,
Powder feeder unit can give forming platform powdering, and what laser-galvanometer system can move is installed on fixed frame, laser-galvanometer system
System can respectively with each Laser stove-formation cylinder system face, laser-galvanometer system can emit for melt powder swash
Light, the laser of laser-galvanometer system transmitting be able to be injected through the hyalomere on the upside of Laser stove Laser stove-formation cylinder system at
It is focused in shape space and in forming platform, control system controls each portion in laser-galvanometer system and Laser stove-formation cylinder system
Part work, control system also control Laser stove-formation cylinder system motion.
As the further improvement of invention, fixed frame includes fixed platform, rocker shaft, rocker arm ontology and rotation driving dress
It sets, what the rocker shaft can rotate is installed in fixed platform, and rocker arm ontology one end is connected with rocker shaft, laser-vibration
Mirror system is fixedly installed on the rocker arm ontology other end, and several Laser stoves-formation cylinder system is along the circle centered on rocker shaft
Arc track spacing is arranged in fixed platform, and rotation drive device drives rocker shaft rotation.
As the further improvement of invention, fixed frame further includes elevating mechanism and lifting drive, and elevating mechanism is longitudinal
What can be gone up and down is installed on rocker shaft, and rocker arm ontology one end is fixedly connected with the tache motorice of elevating mechanism, lifting driving dress
Set driving elevating mechanism movement.
As the further improvement of invention, the elevating mechanism is cylinder, and the cylinder body of cylinder is fixedly installed in rocker shaft
Upper end, the piston rod of cylinder and rocker arm ontology one end are connected.
As the further improvement of invention, the fixed frame further includes laser positioning platform, and the laser positioning platform is solid
Dingan County is loaded on the rocker arm ontology other end, and laser-galvanometer system is fixedly installed on laser positioning platform, on laser positioning platform
It is formed with the transparent window worn for laser, laser positioning platform underside can be equipped with positioning pin, in Laser stove-formation cylinder system
Location hole is additionally provided on side surface, the positioning pin be able to be inserted in positioning hole.
As the further improvement of invention, on the two opposite side walls of the Laser stove-formation cylinder system Laser stove respectively
It is formed with inert gas import and inert gas outlet.
As the further improvement of invention, the Laser stove includes bottom plate, side wall and top plate, and the bottom plate and top plate are distinguished
Sealing is fixed at the formingspace that side wall upper/lower terminal forms sealing, and top plate is equipped with hollow-out parts, and hollow-out parts sealing is embedded
There is windowpane.
As the further improvement of invention, the hoistable platform of the formation cylinder is heating plate body, the heating plate body circumference
What direction stop and axial direction can be slided is inserted in moulding cylinder, is additionally provided with screw rod and motor, the screw rod and moulding cylinder activity
It is spirally connected, screw rod upper end can be rotated with heating plate body circumferencial direction and axial retention is connect, the rotation of motor driven screw rod.
As the further improvement of invention, the Laser stove-formation cylinder system Laser stove is equipped with windowing, the windowing
It is equipped with the hermatic door that can be opened and closed.
As the further improvement of invention, the Laser stove-formation cylinder system is three, three Laser stoves-formation cylinder system
System switches between shaped state, cleaning state and standby mode respectively.
The method have the benefit that: the present invention is by by laser-galvanometer system and Laser stove-formation cylinder system shape
It is the overlapping or separated of two independent components at two sets of individual sealing mechanisms, in handoff procedure, it is unrelated with sealing system, because
And the reliability and highly-safe switched, laser-galvanometer system switches over work between multiple Laser stoves-formation cylinder system
Make so that laser beam hardly rest ground continuous work, most give full play to the function of laser beam flying, substantially increase laser at
Shape efficiency reduces laser fusing former use cost.
Detailed description of the invention
Fig. 1 is structure of the invention schematic illustration；
Fig. 2 is that laser melts shaped state figure；
Fig. 3 is laser-galvanometer system switching state figure between Laser stove-formation cylinder of different conditions；
Fig. 4 is structural principle main view of the invention；
Fig. 5 is sectional view along A-A in Fig. 4.
Specific embodiment
Embodiment: a kind of laser melting unit suitable for middle-size and small-size 3D printing, including fixed frame 1, laser-galvanometer system
2, Laser stove 31- formation cylinder system 3 and control system, at least two Laser stove 31- formation cylinder systems 3 are fixed at fixed frame 1
On, Laser stove 31- formation cylinder system 3 includes Laser stove 31 and moulding cylinder 32, the formingspace 33 of sealing is formed in Laser stove 31,
The transmittance section with 33 face of formingspace is equipped on the upside of Laser stove 31,31 downside of Laser stove is tightly connected with moulding cylinder 32, forming
The piston of cylinder forms the hoistable platform 35 that can be aligned with 31 inside bottom surface of Laser stove, is additionally provided with powder feeder unit in Laser stove 31, supplies
Powder device can give forming platform powdering, and what laser-galvanometer system 2 can move is installed on fixed frame 1, laser-galvanometer system
System 2 can be respectively with each 3 face of Laser stove 31- formation cylinder system, and laser-galvanometer system 2 can emit for melting powder
Laser, the laser that laser-galvanometer system 2 emits be able to inject Laser stove 31- forming through the hyalomere of the upside of Laser stove 31
It is focused in the formingspace 33 of cylinder system 3 and in forming platform, control system controls laser-galvanometer system 2 and Laser stove 31-
Each component work, control system also control the movement of Laser stove 31- formation cylinder system 3 in formation cylinder system 3.
When being processed, laser beam focuses on metal powder (powder bed) surface of compacting by galvanometer, selectively melts
One layer of metal, hoistable platform 35 decline some tens of pm, and power spreading device spreads one layer of powder, the depth that thickness and hoistable platform 35 decline
It is identical, as soon as laser beam electedly re-melting layer metal, forms the production of a three-dimensional structure in formingspace 33 repeatedly
Product, during laser fusing forming, the powder feeder unit in Laser stove 31- formation cylinder system 3 includes dust feeder 43 and powdering dress
44 are set, wherein for dust feeder for metal powder to be sent in Laser stove 31, power spreading device strikes off powder, and guarantees new powder bed
Thickness reach requirement, as soon as when the product in Laser stove 31- formation cylinder system 3 completes the process, laser-galvanometer system 2 from
It is moved away in Laser stove 31- formation cylinder system 3 up to newly being produced in next ready Laser stove 31- formation cylinder system 3
The light of product melts forming, and the product processed in upper Laser stove 31- formation cylinder system 3 then takes out of Laser stove 31
Out, the Laser stove 31 for taking out product carries out cleaning and the heating of hoistable platform 35 enters wait state, to laser-galvanometer system 2
Come over to carry out the forming of a new round, laser beam hardly rests ground continuous work, most gives full play to the function of laser beam flying
Can, and be the overlapping of two independent components in handoff procedure or separate, it is unrelated with sealing system, thus the reliability that switches and
It is highly-safe.
Fixed frame 1 includes fixed platform 11, rocker shaft 12, rocker arm ontology 13 and rotation drive device 14, the rocker arm
What shaft 12 can rotate is installed in fixed platform 11, and 13 one end of rocker arm ontology is connected with rocker shaft 12, laser-galvanometer system
System 2 is fixedly installed on 13 other end of rocker arm ontology, and several Laser stove 31- formation cylinder systems 3 are along centered on rocker shaft 12
Arc track be alternatively arranged in fixed platform 11, rotation drive device 14 drives rocker shaft 12 to rotate.Pass through rocker arm sheet
The rotation of body 13 realizes that laser-galvanometer system 2 carries out laser scanning from different 3 faces of Laser stove 31- formation cylinder system, realizes
Furthermore being switched fast for 2 position of laser-galvanometer system can also be that Laser stove 31- formation cylinder system 3 is arranged along linear interval
Column, laser-galvanometer system 2 realize that this is readily conceivable that for those skilled in the art according to this patent along straight reciprocating motion
Equivalent constructions.
Fixed frame 1 further includes elevating mechanism and lifting drive 15, and what elevating mechanism can longitudinally be gone up and down, which be installed on, shakes
In arm shaft 12,13 one end of rocker arm ontology is fixedly connected with the tache motorice of elevating mechanism, and lifting drive 15 drives elevator
Structure movement.It is first when by elevating mechanism laser-galvanometer system 2 being switched between different Laser stove 31- formation cylinder systems 3
Raising is detached from rotates again therewith, avoids interfering and wear, at the same can guarantee laser-galvanometer system 2 and Laser stove 31- at
It keeps fitting closely state when shape cylinder system 3 combines, guarantees that laser focus position is accurate.
The elevating mechanism is cylinder, and the cylinder body of cylinder is fixedly installed in 12 upper end of rocker shaft, the piston rod of cylinder with
13 one end of rocker arm ontology is connected.It can also be using motor 40 and 39 nut body of screw rod or eccentric turbine other than using cylinder
Structure etc..
The fixed frame 1 further includes laser positioning platform 16, and the laser positioning platform 16 is fixedly installed in rocker arm ontology
On 13 other ends, laser-galvanometer system 2 is fixedly installed on laser positioning platform 16, is formed with confession on laser positioning platform 16
The transparent window 17 that laser is worn can be equipped with positioning pin 18, Laser stove 31- formation cylinder system 3 on the downside of laser positioning platform 16
Location hole is additionally provided on uper side surface, the positioning pin 18 be able to be inserted in positioning hole.Pacified by laser positioning platform 16
Laser-galvanometer system 2 is filled, while laser-galvanometer system 2 and Laser stove are realized by the positioning pin 18 on laser positioning platform 16
The positioning of 31- formation cylinder system 3, it is ensured that the two position face guarantees the two position precision, and then guarantees processing precision of products.
, can also be by other location structures other than realizing the two positioning using the structure, such as four sides, which clamps, to be positioned, backstop limit etc.
Deng.
Inert gas is respectively formed on the two opposite side walls 37 of Laser stove 31 of the Laser stove 31- formation cylinder system 3
Import 41 and inert gas outlet 42.Inert gas takes away the oxygen in furnace from left entrance, right discharge, make oxygen content as low as
It is required that level.
The Laser stove 31 includes bottom plate 36, side wall 37 and top plate 38, and the bottom plate 36 and top plate 38 seal fixation respectively
The formingspace 33 of sealing is formed set on 37 upper/lower terminal of side wall, top plate 38 is equipped with hollow-out parts, and hollow-out parts sealing is embedded with
Windowpane 34.
The hoistable platform 35 of the formation cylinder be heating plate body, the heating plate body circumferencial direction stop and axial direction can slide
Dynamic is inserted in moulding cylinder 32, is additionally provided with screw rod 39 and motor 40, and the screw rod 39 is spirally connected with 32 activity of moulding cylinder, screw rod 39
Upper end can be rotated with heating plate body circumferencial direction and axial retention is connect, and motor 40 drives screw rod 39 to rotate.
The Laser stove 31 of the Laser stove 31- formation cylinder system 3 is equipped with windowing, and the windowing is equipped with and can be opened and closed
Hermatic door.It is realized by hermatic door and is cleared up in the taking-up and Laser stove 31 of the product completed the process.
The Laser stove 31- formation cylinder system 3 is three, and three Laser stove 31- formation cylinder systems 3 are respectively in forming shape
It is switched between state, cleaning state and standby mode.
Traditional design is " first switching, rear standby ", this is because Laser stove 31 is connect shape with laser-galvanometer by traditional design
At indivisible entirety, can only be completed at the sealing of Laser stove 31 and formation cylinder " separate/connect " --- switching.Only will
Formation cylinder is connected to after Laser stove 31 (after switching), just can enter standby mode --- and " first switching, rear standby ".This just increases
The time for having added laser-galvanometer system 2 idle, reduce general work efficiency.Furthermore traditional design is switched at sealing, will
The service life of sealing structure can be reduced.
This patent is respectively formed independent using laser-galvanometer system 2 and 3 separate structure of Laser stove 31- formation cylinder system
It is whole, when processing, by the way that three Laser stove 31- formation cylinder systems 3 are arranged, three states can be formed, each SLM device
Laser stove 31- formation cylinder can form three kinds of working conditions: " shaped state ", " standby mode " and " cleaning shape by switching
State "；
In Fig. 3, No. 1 machine A is just in " shaped state "；No. 2 machine B have been in " standby mode "；No. 3 machine C are in
" cleaning state ".When No. 1 machine completes metal forming work, it can switch at once: laser-galvanometer system 2 being moved to and is in
On the Laser stove 31 of No. 2 machines of " standby mode ", work is formed at once；No. 1 machine is transferred to " cleaning state ", No. 3 machines after
Continuous cleaning, until reaching " standby mode ", after No. 2 machines shape, cleaning is completed in No. 3 machines, is in " standby mode ", can
Laser-galvanometer system 2 is moved on the Laser stove 31- formation cylinder system 3 of No. 3 machines again, work is formed, that is, enters
" shaped state ".No. 1 machine has entered " standby mode " at this time, and No. 2 machines enter " cleaning state ".It recycles repeatedly, it is a set of to swash
Light-galvanometer system 2 ensure that the uninterrupted operation of 3 SLM devices, reach highest forming efficiency.
It is big such as to shape scanning work amount, a set of laser-galvanometer system 2 can also be equipped with to two sets of Laser stove 31- formation cylinder systems
System 3.
Claims (10)
1. a kind of laser melting unit suitable for middle-size and small-size 3D printing, it is characterised in that: including fixed frame (1), laser-galvanometer
System (2), Laser stove-formation cylinder system (3) and control system, at least two Laser stoves-formation cylinder system are fixed at fixation
On frame, Laser stove-formation cylinder system includes Laser stove (31) and moulding cylinder (32), and the formingspace of sealing is formed in Laser stove
(33), it is equipped with the transmittance section with formingspace face on the upside of Laser stove, is tightly connected on the downside of Laser stove with moulding cylinder, formation cylinder
Piston forms the hoistable platform (35) that can be aligned with Laser stove inside bottom surface, is additionally provided with powder feeder unit, powder feeder unit in Laser stove
Forming platform powdering can be given, what laser-galvanometer system can move is installed on fixed frame, and laser-galvanometer system can divide
Not with each Laser stove-formation cylinder system face, laser-galvanometer system can emit the laser for melting powder, laser-vibration
The laser of mirror system transmitting be able to be injected in Laser stove-formation cylinder system formingspace simultaneously through the hyalomere on the upside of Laser stove
It is focused in forming platform, control system controls each component work, control in laser-galvanometer system and Laser stove-formation cylinder system
System processed also controls Laser stove-formation cylinder system motion.
2. being suitable for the laser melting unit of middle-size and small-size 3D printing as described in claim 1, it is characterized in that: fixed frame includes solid
Fixed platform (11), rocker shaft (12), rocker arm ontology (13) and rotation drive device (14), what the rocker shaft can rotate
It is installed in fixed platform, rocker arm ontology one end is connected with rocker shaft, and it is another that laser-galvanometer system is fixedly installed in rocker arm ontology
On one end, several Laser stoves-formation cylinder system is alternatively arranged along the arc track centered on rocker shaft in fixed platform,
Rotation drive device drives rocker shaft rotation.
3. being suitable for the laser melting unit of middle-size and small-size 3D printing as claimed in claim 2, it is characterized in that: fixed frame further includes
Elevating mechanism and lifting drive (15), what elevating mechanism can longitudinally be gone up and down is installed on rocker shaft, rocker arm ontology one
End is fixedly connected with the tache motorice of elevating mechanism, and lifting drive drives elevating mechanism movement.
4. being suitable for the laser melting unit of middle-size and small-size 3D printing as claimed in claim 3, it is characterized in that: the elevating mechanism
For cylinder, the cylinder body of cylinder is fixedly installed in rocker shaft upper end, and the piston rod of cylinder and rocker arm ontology one end are connected.
5. being suitable for the laser melting unit of middle-size and small-size 3D printing as claimed in claim 3, it is characterized in that: the fixed frame is also
Including laser positioning platform (16), the laser positioning platform is fixedly installed on the rocker arm ontology other end, laser-galvanometer system
It is fixedly installed on laser positioning platform, the transparent window (17) worn for laser is formed on laser positioning platform, laser is fixed
Positioning pin (18) can be equipped on the downside of bit platform, be additionally provided with location hole, the positioning on Laser stove-formation cylinder system uper side surface
Pin be able to be inserted in positioning hole.
6. being suitable for the laser melting unit of middle-size and small-size 3D printing as described in claim 1, it is characterized in that: the Laser stove-
Inert gas import (41) and inert gas outlet (42) are respectively formed on the two opposite side walls of the Laser stove of formation cylinder system.
7. being suitable for the laser melting unit of middle-size and small-size 3D printing as described in claim 1, it is characterized in that: the Laser stove packet
Include bottom plate (36), side wall (37) and top plate (38), the bottom plate and top plate seal respectively to be fixed at side wall upper/lower terminal and formed
The formingspace of sealing, top plate are equipped with hollow-out parts, and hollow-out parts sealing is embedded with windowpane (34).
8. it is suitable for the laser melting unit of middle-size and small-size 3D printing as described in claim 1, it is characterized in that: the formation cylinder
Hoistable platform is heating plate body, the heating plate body circumferencial direction stop and it is axial can slide be inserted in moulding cylinder, also
Equipped with screw rod (39) and motor (40), the screw rod is spirally connected with moulding cylinder activity, screw rod upper end and heating plate body circumferencial direction energy
Enough rotations and axial retention connection, the rotation of motor driven screw rod.
9. being suitable for the laser melting unit of middle-size and small-size 3D printing as described in claim 1, it is characterized in that: the Laser stove-
The Laser stove of formation cylinder system is equipped with windowing, and the windowing is equipped with the hermatic door that can be opened and closed.
10. being suitable for the laser melting unit of middle-size and small-size 3D printing as described in claim 1, it is characterized in that: the Laser stove-
Formation cylinder system be three, three Laser stoves-formation cylinder system respectively shaped state, cleaning state and standby mode between into
Row switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625573.8A CN109550956B (en) | 2018-12-28 | 2018-12-28 | Laser melting equipment suitable for small and medium-sized 3D prints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625573.8A CN109550956B (en) | 2018-12-28 | 2018-12-28 | Laser melting equipment suitable for small and medium-sized 3D prints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109550956A true CN109550956A (en) | 2019-04-02 |
| CN109550956B CN109550956B (en) | 2024-01-26 |
Family
ID=65871724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811625573.8A Active CN109550956B (en) | 2018-12-28 | 2018-12-28 | Laser melting equipment suitable for small and medium-sized 3D prints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109550956B (en) |
Citations (7)
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| CN109550956B (en) | 2024-01-26 |
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