CN106825573A - Melt component and 3D printer in selective laser - Google Patents
Melt component and 3D printer in selective laser Download PDFInfo
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- CN106825573A CN106825573A CN201710242538.7A CN201710242538A CN106825573A CN 106825573 A CN106825573 A CN 106825573A CN 201710242538 A CN201710242538 A CN 201710242538A CN 106825573 A CN106825573 A CN 106825573A
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- movable part
- selective laser
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- component
- chute
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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
- B22F10/10—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
- 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]
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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
- 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
-
- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
- B22F12/22—Driving means
- B22F12/224—Driving means for motion along a direction within 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
- 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
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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
- B22F12/40—Radiation means
- B22F12/44—Radiation means characterised by the configuration of the radiation means
- B22F12/45—Two or more
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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
The present invention relates to selective laser fusing metal 3D printing technique field, component and 3D printer are melted more particularly, to a kind of selective laser.Selective laser fusing component includes：Multiple selective laser melting appartus；Each selective laser melting appartus includes fixed part, movable part and travel mechanism；Movable part is slidably connected with fixed part；Travel mechanism is connected with movable part, for driving movable part to be relatively fixed portion's linear slide；Multiple selective laser melting appartus set gradually along the direction parallel with the moving direction of movable part.Travel mechanism drives movable part to drive laser coupled to move and work with excitation mechanism, so cause that laser coupled is wider with the scope of activities of excitation mechanism, the limitation of its not Stimulated Light galvanometer deflection angle, the scope that laser beam is irradiated to metal powder layer is larger, make technology equipment shaping scantling larger, be conducive to the technology and its be equipped in worldwide popularization and application.
Description
Technical field
The present invention relates to selective laser fusing metal 3D printing technique field, more particularly, to a kind of selective laser fusing group
Part and 3D printer.
Background technology
Increasing material manufacturing 3D printing technique be one kind based on mathematical model file (CAD), with powdery metal, PVC,
Resin, fiber and other material, by special by way of fusion sediment, laser sintered, laser fusion, laser curing, laser melting coating
With software to CAD 3D configuration object, section dimensionality reduction is carried out, be manufacturing industry then by the constructing technology of piece successively printing objects
In an emerging technology developing rapidly, in Britain《Economist》Magazine《The third time industrial revolution》It is referred to as in one text
One of important symbol of the third time industrial revolution.
Selective laser fusing metal 3D printing technique is to utilize high energy density laser beam under control of a computer program
Be scanned, the metal powder layer that will be laid in advance carry out selective melting and with matrix metallurgical binding, then constantly successively
Powdering, scanning, fusing, are finally completed the manufacturing process of 3-dimensional metal parts, are that current material increasing field application is more
A kind of metal 3D printing technique.The technology can manufacture the metal parts of complicated shape, and its profiled member mechanical property is good, high precision,
Consistency is made part more than 99% up to conventional metallurgical, equal in fields such as medical treatment, Aero-Space, military project, Construction of Nuclear Electricity, research and development of products
There is important application.
The laser beam of fusing 3D printer in selective laser of the prior art is by laser vibration mirror reflected to metal dust
Layer carries out selective melting to it, and laser beam irradiation metal powder layer is adjusted by adjusting the deflection angle of laser galvanometer
Position, so as to melt the metal powder layer of various location.But due to the limitation of Stimulated Light galvanometer deflection angle so that laser light
The scope that beam is irradiated to metal powder layer is smaller, makes technology equipment shaping scantling smaller, seriously restricts the technique
Technology and its be equipped in it is worldwide popularization with application.
Shown according to known data, the full-size component body that the current world is molded with selective laser melting process equipment
Product is 500mm long × 500mm wide × 500mm high.The Department of Science and Technology of China in 2016 is total to the key scientific and technological projects of material increasing field
400,000,000 yuan or so of state revenue funds are set aside, wherein to two tackling of key scientific and technical problems inputs of selective laser melting process equipment
3850.00 ten thousand yuan, one of which is exactly the technical equipment of forming dimension scope >=500mm × 500mm × 500mm of tackling key problems, this
The mesh implementation cycle is 5 years.It is now big more than 500mm × 500mm × 500mm volumes with the technical equipment forming dimension scope
Size members, have become the important competition direction that intelligent high-end manufacturing technology commanding elevation is seized in countries in the world.
The content of the invention
It is an object of the invention to provide a kind of fusing of selective laser component and 3D printer, to solve to deposit in the prior art
The less technical problem of constituting parts size that can be molded of 3D printer.
A kind of selective laser fusing component that the present invention is provided, the selective laser fusing component includes：Multiple laser choosings
Area's melting appartus；Each described selective laser melting appartus includes fixed part, movable part and travel mechanism；The movable part
It is slidably connected with the fixed part；The travel mechanism is connected with the movable part, for driving the movable part relatively described
Fixed part linear slide；
The travel mechanism is used to be electrically connected with the control system of 3D printer；The movable part is used to install 3D printer
Laser coupled and excitation mechanism；The fixed part is used to be fixedly connected with the casing of 3D printer；
Multiple selective laser melting appartus set gradually along the direction parallel with the moving direction of the movable part.
Further, the movable part includes moving member and installed part；The installed part is fixed with the moving member and connected
Connect；The installed part is used to install the laser coupled and excitation mechanism of 3D printer；The moving member is slided with the fixed part
Connection；The travel mechanism is connected with the moving member, for driving the relatively described fixed part of the moving member to do linear slide.
Further, the selective laser melting appartus also include vertical spacing structure；The travel mechanism is used to drive
The relatively described fixed part of movable part linear slide along the longitudinal direction；The vertical spacing structure setting is in the movable part
On；The vertical spacing structure is used to prevent the movable part from moving up and down.
Further, the vertical spacing structure includes vertical chute and the vertical stability being slidably installed in the chute
Wheel；The vertical chute is arranged on the fixed part；The vertical stability wheel is vertically arranged；The vertical stability wheel with it is described
Movable part rotates connection；The top and bottom of the vertical stability wheel abut with the roof and bottom wall of the vertical chute respectively.
Further, the selective laser melting appartus also include cross spacing structure；The cross spacing structure is set
On the movable part；The cross spacing structure is used to prevent the movable part from moving left and right.
Further, the cross spacing structure includes horizontal concrete chute and the lateral stability being slidably installed in the chute
Wheel；The horizontal concrete chute is arranged on the fixed part；The lateral stability wheel is horizontally disposed with；The lateral stability wheel with it is described
Movable part rotates connection；The left end and right-hand member of the lateral stability wheel are supported with the left side wall and right side wall of the horizontal concrete chute respectively
Connect.
Further, the fixed part includes the left slide rail and right slide rail that parallel interval is set；The moving member includes moving
Moving base；The left end of the mobile foundation is slidably connected with the left slide rail, and right-hand member is slidably connected with the right slide rail.
Further, the pivot center and horizontal plane of the installed part.
Further, the upper end of the installed part is fixedly connected with the lower end of the moving member.
Further, the present invention also provides a kind of 3D printer, and the 3D printer is selected including laser of the present invention
Melt component in area.
The selective laser fusing component that the present invention is provided, including multiple selective laser melting appartus, multiple selective lasers are melted
Makeup is put and is set gradually along the direction parallel with the moving direction of the movable part, that is, multiple selective lasers melting appartus
Along linear array.Each selective laser melting appartus includes fixed part, movable part and travel mechanism.When in use, Gu
Determine portion to be fixed on the casing of 3D printer, laser coupled and excitation mechanism, travel mechanism and 3D printer are installed on movable part
Control system electrical connection.Control system controls travel mechanism.Travel mechanism drives the relatively described fixed part straight line of movable part to slide
Dynamic, while driving the laser coupled on movable part with excitation mechanism along rectilinear movement, laser coupled is with excitation mechanism mobile
During the metal powder layer that is irradiated to light beam on working face carry out selective melting, be finally completed the shaping manufacture of component.
The selective laser fusing component that the present invention is provided, travel mechanism drives movable part to drive laser coupled and excitation mechanism
Move and work, so that laser coupled is wider with the scope of activities of excitation mechanism, its not Stimulated Light galvanometer deflection angle
The limitation of degree, the scope that laser beam is irradiated to metal powder layer is larger, the technology is equipped shaping component volume size
It is larger, be conducive to the technology and its be equipped in worldwide popularization and application.User can be according to actual components
The number that size selection is melted using selective laser.The selective laser fusing component that the present invention is provided is applied to rectangle powder bed
Molding component manufacture.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation that component is melted in selective laser provided in an embodiment of the present invention；
Fig. 2 is the structural representation of selective laser melting appartus provided in an embodiment of the present invention；
Fig. 3 is the partial structural diagram of selective laser melting appartus provided in an embodiment of the present invention；
Fig. 4 is the structural representation of left slide rail in selective laser melting appartus provided in an embodiment of the present invention；
Fig. 5 is another structural representation of left slide rail in selective laser melting appartus provided in an embodiment of the present invention；
Fig. 6 is the structural representation of right slide rail in selective laser melting appartus provided in an embodiment of the present invention；
Fig. 7 is another structural representation of right slide rail in selective laser melting appartus provided in an embodiment of the present invention.
Reference：
1- fixed parts；2- movable parts；3- vertical spacing structures；
4- cross spacing structures；5- selective lasers melting appartus；The left slide rails of 11-；
The right slide rails of 12-；21- moving members；22- installed parts；
31- vertical stability wheels；The vertical chutes of 32-；The left steady wheels of 41-；
The right steady wheels of 42-；The left chutes of 43-；44- right rails；
211- mobile foundations.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify describe, rather than indicate imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Fig. 1 is the structural representation that component is melted in selective laser provided in an embodiment of the present invention；Fig. 2 is the embodiment of the present invention
The structural representation of the selective laser melting appartus of offer；As depicted in figs. 1 and 2, a kind of laser provided in an embodiment of the present invention
Selective melting component, selective laser fusing component includes：Multiple selective laser melting appartus 5；Each selective laser fusing dress
Putting 5 includes fixed part 1, movable part 2 and travel mechanism；Movable part 2 is slidably connected with fixed part 1；Travel mechanism and activity
Portion 2 connects, for driving movable part 2 to be relatively fixed the linear slide of portion 1；Travel mechanism is used for the control system electricity with 3D printer
Connection；Movable part 2 is used to install the laser coupled and excitation mechanism of 3D printer；Fixed part 1 is used for the casing with 3D printer
It is fixedly connected；Multiple selective laser melting appartus 5 set gradually along the direction parallel with the moving direction of movable part 2.
Melt component, including multiple selective laser melting appartus 5, multiple laser in selective laser provided in an embodiment of the present invention
Selective melting device 5 sets gradually along the direction parallel with the moving direction of movable part 2, that is, multiple selective laser fusings
Device 5 is along linear array.Each selective laser melting appartus 5 includes fixed part 1, movable part 2 and travel mechanism.Make
Used time, fixed part 1 is fixed on the casing of 3D printer, on movable part 2 install laser coupled and excitation mechanism, travel mechanism with
The control system electrical connection of 3D printer.Control system controls travel mechanism, travel mechanism to drive movable part 2 to be relatively fixed portion 1
Linear slide, while driving the laser coupled on movable part 2 with excitation mechanism along rectilinear movement, laser coupled exists with excitation mechanism
Light beam is irradiated on working face metal powder layer in mobile process carries out selective melting, is finally completed the shaping of component
Manufacture.
Component is melted in selective laser provided in an embodiment of the present invention, travel mechanism drive movable part 2 drive laser coupled with
Excitation mechanism is moved and worked, so that laser coupled is wider with the scope of activities of excitation mechanism, its not Stimulated Light shake
The limitation of mirror deflection angle, the scope that laser beam is irradiated to metal powder layer is larger, the technology is equipped shaped component
Volume size is larger, is conducive to the technology and its is equipped in worldwide popularization and application.User can be according to reality
The size selection of border component uses the number of selective laser melting appartus.The selective laser fusing component that the present invention is provided is applied to
The shaping manufacture of rectangle powder bed member.
Wherein, the structure type of travel mechanism can be various, for example, travel mechanism includes motor, gear and and tooth
The tooth bar that wheel is engaged.Gear is fixedly connected with the power output shaft of motor, and movable part 2 is fixedly connected with tooth bar.Motor drives
Pinion rotation, gear driven tooth bar edge rectilinear movement, so as to drive movable part 2 to be relatively fixed portion 1 along rectilinear movement.
The shape of fixed part 1 can be for various, such as：Square, circular or irregular shape etc..
On the basis of above-described embodiment, further, movable part 2 includes moving member 21 and installed part 22；Installed part
22 are fixedly connected with moving member 21；Installed part 22 is used to install the laser coupled and excitation mechanism of 3D printer；Moving member 21 with
Fixed part 1 is slidably connected；Travel mechanism is connected with moving member 21, and linear slide is done for driving moving member 21 to be relatively fixed portion 1.
In the present embodiment, movable part 2 is set to moving member 21 and installed part 22, moving member 21 is relatively fixed portion 1 and slides,
Installed part 22 is fixedly connected with moving member 21, and installed part 22 installs laser coupled and excitation mechanism, can so facilitate laser coupled
With the installation of excitation mechanism.
Further, travel mechanism can drive moving member 21 to be relatively fixed the reciprocating linear of portion 1 and move；When travel mechanism drives
When dynamic moving member 21 is moved to first direction, rotating mechanism drive installation part 22 is rotated clockwise；Moved when travel mechanism drives
When part 21 is moved to second direction, rotating mechanism drive installation part 22 is rotated counterclockwise；First direction is opposite with second direction.
As shown in Fig. 2 on the basis of above-described embodiment, further, selective laser melting appartus 5 also include vertical limit
Bit architecture 3；Travel mechanism is used to drive movable part 2 to be relatively fixed the linear slide along the longitudinal direction of portion 1；Vertical spacing structure 3 sets
Put on movable part 2；Vertical spacing structure 3 is used to prevent movable part 2 from moving up and down.
In the present embodiment, vertical spacing structure 3 is set on movable part 2, portion 1 is relatively fixed along front and back in movable part 2
During to linear slide, vertical spacing structure 3 can prevent movable part 2 from moving up and down, so that in the vertical direction ensures movable part 2
Stabilization, and then ensure the stabilization of laser coupled and excitation mechanism in the vertical direction, it is to avoid laser coupled occurs with excitation mechanism
In the vertical direction is rocked, and improves the precision of melt-processed shaping.
Wherein, the structure type of vertical spacing structure 3 can be various, for example, chute is set on fixed part 1, in work
Sliding block is set in dynamic portion 2, sliding block is slidably installed in chute, and is abutted with the roof and bottom wall of chute, roof and bottom due to chute
Wall applies active force to sliding block simultaneously, so that in the vertical direction carries out sliding block spacing, and then avoids being moved down on movable part 2
It is dynamic.Preferably, the roof of chute and the cross sectional shape of bottom wall are fold-line-shaped, the cross sectional shape of the upper and lower surface of sliding block
Also fold-line-shaped is, sliding block is slidably installed in chute.The roof and bottom wall of chute can apply active force to sliding block in the lateral direction,
So as to sliding block is spacing in the lateral direction, so can in left-right direction move anti-limited slip block simultaneously, prevent movable part 2 in left and right
Rocked on direction, further increase stability when movable part 2 is moved.
Fig. 3 is the partial structural diagram of selective laser melting appartus provided in an embodiment of the present invention；Fig. 4 is real for the present invention
The structural representation of left slide rail in the selective laser melting appartus of example offer is provided；Fig. 5 is selected for laser provided in an embodiment of the present invention
Another structural representation of left slide rail in area's melting appartus；Fig. 6 is in selective laser melting appartus provided in an embodiment of the present invention
The structural representation of right slide rail；Fig. 7 is another structure of right slide rail in selective laser melting appartus provided in an embodiment of the present invention
Schematic diagram；As shown in Figures 2 to 7, on the basis of above-described embodiment, further, vertical spacing structure 3 includes vertical chute
32 and the vertical stability wheel 31 that is slidably installed in chute；Vertical chute 32 is arranged on fixed part 1；Vertical stability wheel 31 sets vertically
Put；Vertical stability wheel 31 is rotated with movable part 2 and is connected；The top and bottom of vertical stability wheel 31 respectively with the top of vertical chute 32
Wall and bottom wall are abutted.
In the present embodiment, vertical stability wheel 31 is rotated with movable part 2 and is connected, the top and bottom difference of vertical stability wheel 31
Abutted with the roof and bottom wall of vertical chute 32, the roof and bottom wall of vertical chute 32 apply active force to vertical stability wheel 31,
So as to the in the vertical direction of vertical stability wheel 31 is spacing, so as to avoid movable part 2 from moving up and down.Meanwhile, movable part 2 is in movement
When, vertical stability wheel 31 is rotated in vertical chute 32, and the mobile friction of movable part 2 and fixed part 1 is converted into rolling
Friction, so as to reduce frictional force, reduces frictional dissipation.
Wherein, vertical stability wheel 31 can be multiple, it is preferable that vertical stability wheel 31 is four, and vertical chute 32 is two
It is individual.Two vertical parallel intervals of chute 32 are arranged on fixed part 1.Two vertical stability wheels 31 are spaced along the bearing of trend of chute
It is disposed therein in a vertical chute 32, another two vertical stability wheel 31 is disposed on another along the bearing of trend of chute
In vertical chute 32.The setting of four vertical stability wheels 31 can increase stability when movable part 2 is moved.
As shown in Figures 2 to 7, on the basis of above-described embodiment, further, selective laser melting appartus 5 also include
Cross spacing structure 4；Cross spacing structure 4 is arranged on movable part 2；Cross spacing structure 4 is used to prevent movable part 2 or so from moving
It is dynamic.
In the present embodiment, cross spacing structure 4 is set on movable part 2, portion 1 is relatively fixed along front and back in movable part 2
During to linear slide, cross spacing structure 4 can prevent movable part 2 from moving left and right, so as to ensure movable part 2 in a lateral direction
Stabilization, and then ensure laser coupled and excitation mechanism stabilization in a lateral direction, it is to avoid laser coupled occurs with excitation mechanism
Rock in a lateral direction, further increase the precision of melt-processed shaping.
Wherein, the structure type of cross spacing structure 4 can be various, for example, cross spacing structure 4 includes chute and cunning
Block, chute is arranged on fixed part 1, and sliding block is arranged on movable part 2, the left end of sliding block and right-hand member respectively with the left side wall of chute
Abutted with right side wall, so that in the horizontal that sliding block is spacing.Preferably, the top and bottom of sliding block respectively with the roof of chute and
Bottom wall is abutted, so as to sliding block is spacing on vertical, such movable part 2 it is vertical and it is horizontal will not shake, improve
The stability of movable part 2.
As shown in Figures 2 to 7, on the basis of above-described embodiment, further, cross spacing structure 4 includes laterally sliding
Groove and the lateral stability wheel being slidably installed in chute；Horizontal concrete chute is arranged on fixed part 1；Lateral stability wheel is horizontally disposed with；It is horizontal
Rotated with movable part 2 to steady wheel and be connected；The left end and right-hand member of lateral stability wheel left side wall respectively with horizontal concrete chute and right side
Wall is abutted.
In the present embodiment, lateral stability wheel and movable part 2 are rotated and are connected, the left end and right-hand member of lateral stability wheel respectively with horizontal stroke
Abutted to the left side wall and right side wall of chute, the left side wall and right side wall of horizontal concrete chute apply active force to lateral stability wheel, from
And lateral stability wheel is spacing in a lateral direction, so as to avoid movable part 2 from moving left and right.Meanwhile, movable part 2 is when mobile
Wait, lateral stability wheel is rotated in horizontal concrete chute, the mobile friction of movable part 2 and fixed part 1 is converted into rolling friction, so that
Frictional force is reduced, frictional dissipation is reduced.
Preferably, lateral stability wheel includes left steady wheel 41 and right steady wheel 42, left steady wheel 41 and the edge of right steady wheel 42
Lateral separation it is rotatably connected on movable part 2.Horizontal concrete chute includes left chute 43 and right rail 44, left chute 43 and right rail
44 are arranged on fixed part 1 laterally spacedly.Left steady wheel 41 is arranged in left chute 43, and the left end of left steady wheel 41 with
The left side wall of left chute 43 is abutted, and right steady wheel 42 is arranged in right rail 44, and right steady wheel 42 right-hand member and right rail 44
Right side wall abut.
Preferably, lateral stability wheel is two, that is, left steady wheel 41 and right steady wheel 42 are two, vertical stability
Wheel 31 is four, so coordinates eight steady wheels to carry out movable part 2 spacing, and the stablizing effect of movable part 2 is best.
On the basis of above-described embodiment, further, fixed part 1 includes the left slide rail 11 and right cunning of parallel interval setting
Rail 12；Moving member 21 includes mobile foundation 211；The left end of mobile foundation 211 is slidably connected with left slide rail 11, right-hand member and right slide rail
12 are slidably connected.
In the present embodiment, the left end of mobile foundation 211 is slidably connected with left slide rail 11, and right-hand member is slided with right slide rail 12 and connected
Connect, left slide rail 11 and right slide rail 12 support mobile foundation 211 respectively so that the stability under loading of mobile foundation 211.
Further, two vertical stability wheels 31 and two left steady wheels 41 are set on left slide rail 11.Set on right slide rail 12
Put two vertical stability wheels 31 and two right steady wheels 42.
On the basis of above-described embodiment, further, the pivot center and horizontal plane of installed part 22.
In the present embodiment, by the pivot center and horizontal plane of installed part 22 so that laser coupled and excitation mechanism
Light beam can be accurately positioned in predeterminated position, further improve machining accuracy.
On the basis of above-described embodiment, further, the upper end of installed part 22 is fixedly connected with the lower end of moving member 21.
In the present embodiment, the laser coupled on installed part 22 launches downwards light beam with excitation mechanism, can so avoid movement
The influence light beam of part 21 is irradiated on metal powder layer, improves the precision of component machine-shaping.
On the basis of above-described embodiment, further, the embodiment of the present invention also provides a kind of 3D printer, 3D printer
Component is melted including selective laser of the invention.The operation principle of selective laser fusing component ibid, will not be repeated here.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. component is melted in a kind of selective laser, it is characterised in that including：Multiple selective laser melting appartus；
Each described selective laser melting appartus includes fixed part, movable part and travel mechanism；The movable part with it is described
Fixed part is slidably connected；The travel mechanism is connected with the movable part, for driving the relatively described fixed part of the movable part
Linear slide；
The travel mechanism is used to be electrically connected with the control system of 3D printer；The movable part is used to install swashing for 3D printer
Optical coupling and excitation mechanism；The fixed part is used to be fixedly connected with the casing of 3D printer；
Multiple selective laser melting appartus set gradually along the direction parallel with the moving direction of the movable part.
2. selective laser according to claim 1 fusing component, it is characterised in that the movable part include moving member and
Installed part；
The installed part is fixedly connected with the moving member；The installed part is used to install the laser coupled of 3D printer and excite
Mechanism；
The moving member is slidably connected with the fixed part；The travel mechanism is connected with the moving member, described for driving
The relatively described fixed part of moving member does linear slide.
3. component is melted in selective laser according to claim 1, it is characterised in that the selective laser melting appartus are also wrapped
Include vertical spacing structure；The travel mechanism is used to drive the relatively described fixed part of movable part straight line cunning along the longitudinal direction
It is dynamic；
The vertical spacing structure setting is on the movable part；The vertical spacing structure is used to prevent the movable part upper and lower
It is mobile.
4. component is melted in selective laser according to claim 3, it is characterised in that the vertical spacing structure includes vertical
Chute and the vertical stability wheel being slidably installed in the chute；
The vertical chute is arranged on the fixed part；The vertical stability wheel is vertically arranged；The vertical stability wheel and institute
State movable part and rotate connection；The top and bottom of the vertical stability wheel are supported with the roof and bottom wall of the vertical chute respectively
Connect.
5. component is melted in selective laser according to claim 4, it is characterised in that the selective laser melting appartus are also wrapped
Include cross spacing structure；
The cross spacing structure is arranged on the movable part；The cross spacing structure is used to prevent described movable part or so
It is mobile.
6. component is melted in selective laser according to claim 5, it is characterised in that the cross spacing structure is included laterally
Chute and the lateral stability wheel being slidably installed in the chute；
The horizontal concrete chute is arranged on the fixed part；The lateral stability wheel is horizontally disposed with；The lateral stability wheel and institute
State movable part and rotate connection；The left end and right-hand member of the lateral stability wheel respectively with the left side wall and right side wall of the horizontal concrete chute
Abut.
7. component is melted in selective laser according to claim 2, it is characterised in that the fixed part sets including parallel interval
The left slide rail and right slide rail put；The moving member includes mobile foundation；
The left end of the mobile foundation is slidably connected with the left slide rail, and right-hand member is slidably connected with the right slide rail.
8. component is melted in selective laser according to claim 2, it is characterised in that the pivot center and water of the installed part
Plane is vertical.
9. component is melted in selective laser according to claim 2, it is characterised in that the upper end of the installed part and the shifting
The lower end of moving part is fixedly connected.
10. a kind of 3D printer, it is characterised in that melt component including the selective laser as described in claim any one of 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710242538.7A CN106825573B (en) | 2017-04-12 | 2017-04-12 | Selective laser melting assembly and 3D printer |
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| CN201710242538.7A CN106825573B (en) | 2017-04-12 | 2017-04-12 | Selective laser melting assembly and 3D printer |
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| CN106825573B (en) | 2019-12-06 |
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