CN107052339A - A kind of coaxial powder feeding apparatus for 3D printing metal works - Google Patents

A kind of coaxial powder feeding apparatus for 3D printing metal works Download PDF

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Publication number
CN107052339A
CN107052339A CN201710207812.7A CN201710207812A CN107052339A CN 107052339 A CN107052339 A CN 107052339A CN 201710207812 A CN201710207812 A CN 201710207812A CN 107052339 A CN107052339 A CN 107052339A
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CN
China
Prior art keywords
component
powder feeding
circular arc
feeding apparatus
coaxial powder
Prior art date
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Pending
Application number
CN201710207812.7A
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Chinese (zh)
Inventor
杨沛恩
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Individual
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Individual
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Publication date
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Priority to CN201710207812.7A priority Critical patent/CN107052339A/en
Publication of CN107052339A publication Critical patent/CN107052339A/en
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Classifications

    • 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
    • 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
    • B22F12/20—Cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/50—Means for feeding of material, e.g. heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/003—Apparatus, e.g. furnaces
    • 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
    • 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)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

The present invention discloses a kind of coaxial powder feeding apparatus for 3D printing metal works, including：Lens subassembly, including lens carrier and the lens on the lens carrier；The powder feeding component below the lens subassembly is arranged on, the powder feeding component is from top to bottom successively including the barrel assemblies being vertically arranged, the first circular arc component being connected with the barrel assemblies, the first cone component being connected with the first circular arc component；The shape for being shaped as being transitioned into external arc from Inner arc of the first circular arc component；The powder feeding component external is provided with cooling water cavity component.Compared with prior art, the coaxial powder feeding apparatus that the present invention is provided sets the circular arc component for being shaped as being transitioned into cylindrical arc shape from Inner arc on the top of cone component, powder is entered back into the first circular cone component by the circular arc component, enable to what metal dust more relaxed during conveying to be transitioned into taper focus movement from vertical motion, so as to reach more stable uniform powder feeding effect, Workpiece shaping quality is improved.

Description

A kind of coaxial powder feeding apparatus for 3D printing metal works
Technical field
The present invention relates to quick manufacture field devices, and in particular to a kind of coaxial powder-feeding for 3D printing metal works is filled Put.
Background technology
3D printer (3D Printers) is also known as three-dimensional printer, is a kind of accumulation manufacturing technology, i.e. RP technique A kind of machine, based on it is a kind of mathematical model file, material can be bonded with special wax material, powdery metal or plastics etc. Material, the object of three-dimensional is manufactured by the jointing material of printing from level to level.3D printer is by control assembly, mechanical component, printing The frameworks such as head, consumptive material and medium composition.Before the printing, the first complete 3 D stereo mould of Modeling and Design one in computer Type, is then printed out again.Because without machining or mould, just energy directly from computer graphics data appoint by generation The object of what shape, so as to highly shortened the production cycle of product, improves production efficiency.
The core of 3D printing is that the complicated 3D bodies of required Forming Workpiece are passed through into slicing treatment conversion referred to as simple 2D The combination in section, therefore traditional machining tool and mould need not be used, according to the three-dimensional computer aided design models of workpiece, On the fast forming machine that computer is controlled, along short transverse layer by layer deposition material, a series of 2D sections of Forming Workpiece are thin Lamella, and lamella is mutually bonded with lamella, finally it is piled into 3 D workpiece.
When manufacturing metal works using 3D printing, it is necessary to use laser printing apparatus.Traditional laser printing apparatus bag Laser generator, laser printhead, mechanical arm and workbench are included, the effect of laser generator is to produce laser, laser printhead peace Loaded on mechanical arm.During whole 3D printing, laser printhead is driven to complete on the table by mechanical arm.Laser printhead group Part mainly includes laser head and powder nozzle component, and the powder nozzle component only includes powder shower nozzle, the connection powder feeding of powder shower nozzle Pipeline and protective gas pipeline.In the course of the work, after powder is ejected, laser quickly melts powder, then extremely short The shape of rapid solidification formation workpiece in time.
The key factor for determining metal works Forming Quality is powder shower nozzle, that is, ensure that the uniform and stable focusing of powder It is fed on the focal point of laser, many such coaxial powder feeding apparatus is disclosed in the prior art.Chinese patent CN104178763 discloses a kind of laser coaxial cladding feeding head, including outside outer tube wall, inner tube wall, cooling water cavity, powder-feeding mouth Circle, powder-feeding mouth inner ring, the powder-feeding mouth inner ring and powder-feeding mouth outer ring are constituted including adjustable movable supporting board, can not dismantled The convergent point for changing powder stream is reached in the case of various pipelines.But, in the device, powder from inside and outside barrel first motion to During powder-feeding mouth Internal and external cycle, circular cone focus movement is directly changed from vertical motion, it is easy to cause powder in corner interim moment It is obstructed, so as to cause the uneven of powder conveying.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of coaxial powder feeding apparatus for 3D printing metal works, its Can solve the problem that interim moment in powder course of conveying in the prior art be obstructed caused by powder powder feeding it is uneven the problem of.
In order to solve the above-mentioned technical problem, the present invention provides a kind of coaxial powder feeding apparatus for 3D printing metal works, Including：
Lens subassembly, including lens carrier and the lens on the lens carrier；
The powder feeding component below the lens subassembly is arranged on, the powder feeding component includes being vertically arranged from top to bottom successively Barrel assemblies, the first circular arc component being connected with the barrel assemblies, the first cone for being connected with the first circular arc component Component；The shape for being shaped as being transitioned into external arc from Inner arc of the first circular arc component；
The powder feeding component external is provided with cooling water cavity component.
It is preferred that, the first circular arc component includes internal circular arc wallboard and outside circular arc wallboard.
It is preferred that, the first circular cone component includes being connected with the internal circular arc wallboard and in axially symmetric distribution Interior movable supporting board, be connected with the outside circular arc wallboard and outer movable supporting board that be in axially symmetric distribution.
It is preferred that, the smooth local protuberance in surface is provided between the interior movable supporting board and the outer movable supporting board Thing, the local protuberance thing is fixed on the inner surface of the outer movable supporting board.
It is preferred that, lift adjustment cylinder movable up and down is provided with below the first circular cone component.
It is preferred that, the lift adjustment cylinder is slidably in contact with the outer surface of outer movable supporting board.
It is preferred that, the taper of the first circular cone component is adjusted in the range of 20-40 degree.
It is preferred that, the barrel assemblies are made up of inner tube wall and outer tube wall.
It is preferred that, protection eyeglass is installed on the inner tube wall.
The present invention discloses a kind of coaxial powder feeding apparatus for 3D printing metal works, including：Lens subassembly, including lens Support and the lens on the lens carrier；It is arranged on the powder feeding component below the lens subassembly, the powder feeding group Part from top to bottom successively include be vertically arranged barrel assemblies, be connected with the barrel assemblies the first circular arc component, with it is described First cone component of the first circular arc component connection；Being shaped as of the first circular arc component is transitioned into external arc from Inner arc Shape；The powder feeding component external is provided with cooling water cavity component.Compared with prior art, the coaxial powder-feeding that the present invention is provided Device sets the circular arc component for being shaped as being transitioned into cylindrical arc shape from Inner arc on the top of cone component, and powder passes through described Circular arc component is entered back into the first circular cone component, enable to that metal dust more relaxes during conveying from vertical fortune It is dynamic to be transitioned into taper focus movement, so as to reach more stable uniform powder feeding effect, improve Workpiece shaping quality.
Brief description of the drawings
A kind of schematic diagram of the embodiment for the coaxial powder feeding apparatus that Fig. 1 present invention is provided；
Fig. 2 is the first circular arc component diagram in coaxial powder feeding apparatus.
Embodiment
Accompanying drawing 1 is referred to, the present invention provides a kind of schematic diagram of embodiment of coaxial powder feeding apparatus, including lens group Part, including lens carrier 301 and the collector lens 302 being horizontally arranged on the lens carrier, the effect of collector lens are Laser beam is focused.It is powder feeding component below lens subassembly, the effect of the powder feeding component is to convey metal dust, Metal dust is focused on above the focus of convergent pencil of rays, then by rapid melting and solidification, completes the 3D printing work of metal works Sequence.
In one embodiment, powder feeding component includes the barrel assemblies 401 being vertically arranged, the circle successively from top to bottom Cartridge module is made up of inner tube wall 401a and outer tube wall 401b, is connected between inner tube wall and outer tube wall with powder conduit road 401c, Metal dust is transported between inner tube wall and outer tube wall from powder conduit road, and protection eyeglass is provided with the top of inner tube wall 501a, sets the effect of protection eyeglass to be that the powder that can prevent Stimulated Light from heating flies up to damage laser head.In outer barrel Cooling water cavity 501b is provided with the outside of wall, cooling water cavity is connected with cooling water inlet and coolant outlet, is followed by cooling water Ring can reduce the environment temperature of protection eyeglass, and preventing and treating protection eyeglass is heated to be burst.Powder conduit road can be connected to circumference Around outer tube wall, metal dust is inwardly conveyed.
In the lower section of barrel assemblies, the first circular arc component 601 is provided with, please referring also to Fig. 2, is the first circular arc component Enlarged diagram, the shape of the first circular arc component is the shape that external arc 601b is transitioned into from Inner arc 601a, including interior Circular arc wallboard 601c, the external arc wallboard 601d being connected with outer tube wall, metal dust enter first between inside and outside cylindrical wall In circular arc component.
The first circular cone component is provided with the bottom of the first circular arc component, the first circular cone component includes powder-feeding mouth Inner ring 701a and powder-feeding mouth outer ring 701b, the powder-feeding mouth inner ring is made up of multiple axially distributed interior movable supporting boards, described Interior movable supporting board is connected with the Inner arc wallboard by way of being hinged, and can so be rotated around Inner arc wallboard, described Outer movable supporting board is connected with the external arc wallboard also by the mode being hinged, and can so be rotated around external arc wallboard, interior Movable supporting board is connected with outer movable supporting board by the fixed local protuberance thing 801a smooth on the surface of outer movable supporting board inner surface, Interior movable supporting board be arranged in parallel with outer movable supporting board.
By setting the first circular arc component, the powder down moves to circular arc component from cylindrical wall, due to circular arc The transition effect of component, allows what powder more relaxed to move in cone component, can prevent and treat the instantaneous obstruction effect for producing powder Really.In addition, the taper of the first circular cone component is preferably 20-40 degree, more preferably 30 degree, the taper of the first circular cone component is defined For interior movable supporting board or outer movable supporting board and vertical axially formed angle.So, by setting the first round platform component, it is possible to Prevent that the moment of powder is obstructed problem, so that the conveying of powder is more uniform, improve the Forming Quality of workpiece.
In order to adjust the angle of outer movable supporting board, lift adjustment cylinder 801b, lift adjustment cylinder and outer barrel are further provided with Wall is connected through a screw thread, and lift adjustment cylinder can be moved up and down along outer tube wall, the outer surface of lift adjustment cylinder and outer movable supporting board Slidably it is in contact.When lift adjustment cylinder moves up and down, outer movable supporting board rotary motion can be driven, so as to adjust first The angle of cone component, powder is focused on different positions.
The present invention discloses a kind of coaxial powder feeding apparatus for 3D printing metal works, including：Lens subassembly, including lens Support and the lens on the lens carrier；It is arranged on the powder feeding component below the lens subassembly, the powder feeding group Part from top to bottom successively include be vertically arranged barrel assemblies, be connected with the barrel assemblies the first circular arc component, with it is described First cone component of the first circular arc component connection；Being shaped as of the first circular arc component is transitioned into external arc from Inner arc Shape；The powder feeding component external is provided with cooling water cavity component.Compared with prior art, the coaxial powder-feeding that the present invention is provided Device sets the circular arc component for being shaped as being transitioned into cylindrical arc shape from Inner arc on the top of cone component, and powder passes through described First circular arc component is entered back into the first circular cone component, enable to that metal dust more relaxes during conveying from perpendicular Straight movement transitions are to taper focus movement, so as to reach more stable uniform powder feeding effect, improve Workpiece shaping quality.
It the above is only the preferred embodiment of the present invention, these preferred embodiments are only that a kind of exemplary of the present invention is said Bright, this exemplary explanation should not be construed as limiting the invention.It should be pointed out that for the ordinary skill of the art For personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (9)

1. a kind of coaxial powder feeding apparatus for 3D printing metal works, it is characterised in that including：
Lens subassembly, including lens carrier and the lens on the lens carrier；
The powder feeding component below the lens subassembly is arranged on, the powder feeding component includes the circle being vertically arranged successively from top to bottom Cartridge module, the first circular arc component being connected with the barrel assemblies, the first cone component being connected with the first circular arc component； The shape for being shaped as being transitioned into external arc from Inner arc of the first circular arc component；
The powder feeding component external is provided with cooling water cavity component.
2. coaxial powder feeding apparatus according to claim 1, it is characterised in that the first circular arc component includes internal circular arc Wallboard and outside circular arc wallboard.
3. coaxial powder feeding apparatus according to claim 2, it is characterised in that the first circular cone component include with it is described interior The connection of portion circular arc wallboard and the interior movable supporting board in axially symmetric distribution, be connected with the outside circular arc wallboard and be in axial direction Symmetrical outer movable supporting board.
4. coaxial powder feeding apparatus according to claim 3, it is characterised in that in the interior movable supporting board and the outer activity The smooth local protuberance thing in surface is provided between support plate, the local protuberance thing is fixed on the interior table of the outer movable supporting board Face.
5. coaxial powder feeding apparatus according to claim 4, it is characterised in that set below the first circular cone component There is lift adjustment cylinder movable up and down.
6. coaxial powder feeding apparatus according to claim 5, it is characterised in that the lift adjustment cylinder and outer movable supporting board Outer surface is slidably in contact.
7. coaxial powder feeding apparatus according to claim 6, it is characterised in that the taper of the first circular cone component is in 20- Adjusted in the range of 40 degree.
8. the coaxial powder feeding apparatus according to any one of claim 1 to 7, it is characterised in that the barrel assemblies are by inner cylinder Wall and outer tube wall are constituted.
9. coaxial powder feeding apparatus according to claim 8, it is characterised in that be provided with protective glass on the inner tube wall Piece.
CN201710207812.7A 2017-03-31 2017-03-31 A kind of coaxial powder feeding apparatus for 3D printing metal works Pending CN107052339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710207812.7A CN107052339A (en) 2017-03-31 2017-03-31 A kind of coaxial powder feeding apparatus for 3D printing metal works

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710207812.7A CN107052339A (en) 2017-03-31 2017-03-31 A kind of coaxial powder feeding apparatus for 3D printing metal works

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CN107052339A true CN107052339A (en) 2017-08-18

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1670607A2 (en) * 2003-12-05 2006-06-21 MBN Nanomaterialia SpA Improved method and apparatus for sintering of organic materials as well as resulting objects
CN200954478Y (en) * 2006-06-21 2007-10-03 天津工业大学 Co-axial powder-feeding head
CN202052935U (en) * 2011-04-15 2011-11-30 华中科技大学 Laser-induction hybrid melting direct-forming device
CN104178763A (en) * 2013-05-24 2014-12-03 中国科学院力学研究所 Laser coaxial cladding powder feeding head
CN205033597U (en) * 2015-09-18 2016-02-17 广东汉邦激光科技有限公司 3D prints intelligence and send whitewashed system and 3D printer
CN205341921U (en) * 2016-01-05 2016-06-29 哈尔滨工程大学 Shower nozzle is extruded to electromagnetic induction heating 3D printer
JP2017025392A (en) * 2015-07-24 2017-02-02 Ｊｘ金属株式会社 Surface treatment metal powder for electron beam type 3d printer and manufacturing method therefor
US9566647B1 (en) * 2015-12-02 2017-02-14 General Electric Company Direct metal electrophotography additive manufacturing machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1670607A2 (en) * 2003-12-05 2006-06-21 MBN Nanomaterialia SpA Improved method and apparatus for sintering of organic materials as well as resulting objects
CN200954478Y (en) * 2006-06-21 2007-10-03 天津工业大学 Co-axial powder-feeding head
CN202052935U (en) * 2011-04-15 2011-11-30 华中科技大学 Laser-induction hybrid melting direct-forming device
CN104178763A (en) * 2013-05-24 2014-12-03 中国科学院力学研究所 Laser coaxial cladding powder feeding head
JP2017025392A (en) * 2015-07-24 2017-02-02 Ｊｘ金属株式会社 Surface treatment metal powder for electron beam type 3d printer and manufacturing method therefor
CN205033597U (en) * 2015-09-18 2016-02-17 广东汉邦激光科技有限公司 3D prints intelligence and send whitewashed system and 3D printer
US9566647B1 (en) * 2015-12-02 2017-02-14 General Electric Company Direct metal electrophotography additive manufacturing machine
CN205341921U (en) * 2016-01-05 2016-06-29 哈尔滨工程大学 Shower nozzle is extruded to electromagnetic induction heating 3D printer

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Application publication date: 20170818