CN113828803A - All-round pressurized coaxial powder feeding nozzle device of adjusting - Google Patents

All-round pressurized coaxial powder feeding nozzle device of adjusting Download PDF

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Publication number
CN113828803A
CN113828803A CN202111167419.2A CN202111167419A CN113828803A CN 113828803 A CN113828803 A CN 113828803A CN 202111167419 A CN202111167419 A CN 202111167419A CN 113828803 A CN113828803 A CN 113828803A
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CN
China
Prior art keywords
pressurizing
air
feeding nozzle
nozzle device
pressurization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111167419.2A
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Chinese (zh)
Inventor
张元�
刘剑峰
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Harbin University of Science and Technology
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Harbin University of Science and Technology
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Publication date
Application filed by Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN202111167419.2A priority Critical patent/CN113828803A/en
Publication of CN113828803A publication Critical patent/CN113828803A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00Apparatus 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
    • B22F12/50Means for feeding of material, e.g. heads
    • B22F12/53Nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00Apparatus 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
    • B22F12/90Means for process control, e.g. cameras or sensors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention provides a coaxial powder feeding nozzle device which can adjust the air pressurization range according to metal powder and a pressurization workpiece made of different materials. The invention relates to a coaxial powder feeding nozzle device capable of adjusting and pressurizing in all directions, which comprises an air pressurizing part, a support connecting part and a powder spraying control part. The device is characterized in that the air pressurizing part is responsible for bearing the lens, the pressurized air adjusting plate and the connecting and supporting connecting part, the supporting and connecting device is responsible for connecting the air pressurizing part and the spray pressure control part and bearing the protective lens, and the spray pressure control part is matched with the supporting and connecting part and the air pressurizing part to complete the processing of the workpiece. The invention realizes the stepless regulation of the pressurization control through the regulating plate pair of the air pressurization part, and has the advantages of wide pressurization material and processing workpiece, large regulation range, good pressurization effect, simple operation and the like.

Description

All-round pressurized coaxial powder feeding nozzle device of adjusting
Technical Field
The invention relates to the field of laser metal additive, in particular to a coaxial powder feeding nozzle device capable of adjusting and pressurizing in an all-around manner.
Background
At present, 3D printing technology at home and abroad is mature day by day, and machinable products gradually turn to high-precision and high-strength fields such as medical treatment, aerospace, military and the like from the aspects of home, life, movement and the like, so that higher requirements on the quality of machined parts are also required, the existing printing equipment is difficult to guarantee the strength of workpieces on the premise of meeting the precision of the workpieces, and higher requirements on the adjusting capacity of the printing equipment are also required due to different materials used for machining and different machined workpieces.
The invention improves the mass density and the strength of the 3D printing workpiece by the characteristics of adjustability, high efficiency, stability and the like on the premise of ensuring the original processing precision of the laser metal additive, and can adjust different processing materials and workpieces. In the process of processing, the invention realizes the dead-angle-free air pressurization of the metal powder, ensures the processing precision of the workpiece to the maximum extent in the pressurization process, improves the use efficiency of materials and saves the processing cost.
Disclosure of Invention
The invention provides a coaxial powder feeding nozzle device capable of adjusting and pressurizing in all directions, which is used for improving the mass density and the strength of a processed product on the premise of ensuring the precision of different processed workpieces and processed materials;
in order to realize the processing purpose, the basic technical scheme is as follows:
the air pressurizing device is added outside the coaxial powder feeding nozzle device, the adjusting plate is added in the air pressurizing device, and relative displacement is realized between the adjusting plate and the air pressurizing shell, so that the air pressurizing range is adjusted to meet the processing requirements of different processing workpieces;
when the metal powder pressurizing device works, the air pressurizing device can enable air to pressurize metal powder in all directions, so that the pressurizing effect is more sufficient.
Drawings
FIG. 1 is a front sectional view of a coaxial powder feeding nozzle device with all-directional pressure adjustment.
FIG. 2 is a top view of a coaxial powder feeding nozzle device with all-directional pressure adjustment.
FIG. 3 is a lower view of a coaxial powder feeding nozzle device with omni-directional adjustment and pressurization.
FIG. 4 is a schematic axial view of a coaxial powder feeding nozzle device with all-directional adjustment and pressurization.
Fig. 5 is a front view of the adjustment plate.
Fig. 6 is a rear view of the adjustment plate.
Wherein: 1 air pressurizing shell, 2 powder spraying channel, 3 protective gas channel, 4 water cooling channel, 5 pressurizing channel, 6 refracting lens, 7 connecting sleeve, 8 protective lens, 9 nozzle and 10 adjusting plate
The specific implementation mode is as follows:
the matching relationship and the function of the parts of the invention are explained below with the accompanying drawings:
as shown in fig. 1, 2, 3, and 4: the air pressurization shell 1 is connected with the sleeve 7 through threads; the powder spraying channel 2, the protective gas channel 3 and the water cooling channel 4 are fixedly connected with a nozzle 9; the air pressurizing shell 1 is connected with the pressurizing channel 5 through threads; the connecting sleeve 7 is connected with the nozzle 9 through threads; a refractive lens 6 and a protective lens 8 are placed over the connecting sleeve 7 and the nozzle 9, respectively.
As shown in fig. 1, 5, and 6: the air pressurizing shell 1 is connected with the adjusting plate 10 through a hinge; the adjusting plates 10 are fitted to each other by means of both side protruding portions.
The working mode of the invention is explained below with the attached drawings:
as shown in fig. 1, 2, 3, and 4: the laser light is irradiated to the processing surface through the protective lens 8 after being refracted by the refractive lens 6, wherein the protective lens 8 can prevent the refractive lens 6 from being polluted when metal powder is processed, and the lens is convenient to clean due to the fact that no fixing device is arranged. The metal powder is sprayed out through the four powder spraying channels 2, and meanwhile, the shielding gas is also sprayed out from the four shielding gas channels 3, so that the sprayed metal powder is prevented from being dispersed. The lower end of the water cooling channel 4 is closed, and cold water can enter from any two adjacent channels and flow out from the other two channels after passing through the nozzle 9. Pressurized air enters the cavity of the air pressurizing housing 1 through the pressurizing passage 5 to pressurize the ejected metal powder.
As shown in fig. 1, 5, and 6: the adjusting plate 10 is a trapezoidal metal sheet with four annular two ends extending out, the sealing performance of a pressurizing environment is guaranteed in a meshing mode, the angle of the outer wall of the pressurizing environment and the angle of the outer wall of the air pressurizing shell 1 are adjusted in a hinge connection mode, the adjusting plate can be attached to the pressurizing outer wall before machining, after the pressurizing cavity is filled with air, the air pressurizing range is adjusted through manual adjustment of the adjusting plate according to the difference between machined metal powder materials and machined parts.

Claims (3)

1. The coaxial powder feeding nozzle device capable of comprehensively regulating and pressurizing comprises an air pressurizing part, a supporting connecting part and a powder spraying control part, and is characterized in that the supporting connecting part is responsible for bearing stress and connecting the rest parts, the powder spraying control part, a laser control part, the air pressurizing part and a cooling protection part are matched with each other to process a workpiece, the coaxial powder feeding nozzle device is responsible for bearing a lens, a pressurized air regulating plate and a connecting and supporting connecting part, the supporting connecting device is responsible for connecting the air pressurizing part and the powder spraying control part and bearing the protection lens, and the powder spraying control part is matched with the supporting connecting part and the air pressurizing part to complete processing of the workpiece.
2. The coaxial powder feeding nozzle device with omni-directional regulation and pressurization as claimed in claim 1, further characterized in that: the air pressurizing shell (1) can adjust the pressurizing areas of different pressurizing metal powder materials and processing workpieces through an adjusting plate (10), and realizes the all-dimensional pressurizing of the metal powder, wherein a protective lens (8) is arranged below the refraction lens (6) to prevent the metal powder from polluting the lens.
3. The coaxial powder feeding nozzle device capable of omni-directionally adjusting and pressurizing as claimed in claim 2, further characterized in that: the adjusting plate (10) is four annular trapezoidal adjusting metal sheets with two ends extending out, the four metal sheets are mutually meshed to seal pressurized air, and the four metal sheets are connected with the air pressurizing shell (1) in a hinge connection mode.
CN202111167419.2A 2021-10-07 2021-10-07 All-round pressurized coaxial powder feeding nozzle device of adjusting Pending CN113828803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111167419.2A CN113828803A (en) 2021-10-07 2021-10-07 All-round pressurized coaxial powder feeding nozzle device of adjusting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111167419.2A CN113828803A (en) 2021-10-07 2021-10-07 All-round pressurized coaxial powder feeding nozzle device of adjusting

Publications (1)

Publication Number Publication Date
CN113828803A true CN113828803A (en) 2021-12-24

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CN202111167419.2A Pending CN113828803A (en) 2021-10-07 2021-10-07 All-round pressurized coaxial powder feeding nozzle device of adjusting

Country Status (1)

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CN (1) CN113828803A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115591713A (en) * 2022-09-20 2023-01-13 北京工业大学(Cn) All-dimensional forming gradient functional material coaxial powder feeding nozzle

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09220687A (en) * 1996-02-13 1997-08-26 Amada Co Ltd Laser beam machining head
JP2010207877A (en) * 2009-03-11 2010-09-24 Panasonic Corp Welding apparatus and soldering apparatus
CN106637195A (en) * 2016-12-15 2017-05-10 中国矿业大学 Coaxial powder feeding sprayer capable of automatically adjusting light spots and powder feeding positions
CN110079797A (en) * 2019-05-07 2019-08-02 中国矿业大学 A kind of coaxial powder-feeding nozzle adjusting powder stream convergence focus using pneumatic mode
CN110280763A (en) * 2019-07-18 2019-09-27 哈尔滨理工大学 Coaxial powder-feeding laser sintering device
CN111842896A (en) * 2020-09-14 2020-10-30 哈尔滨理工大学 Coaxial powder feeding and spraying device for processing high-complex-appearance workpiece
CN112126924A (en) * 2020-08-26 2020-12-25 东南大学 Laser cladding coaxial powder feeding nozzle with outer shielding gas structure
WO2021001054A1 (en) * 2019-07-03 2021-01-07 Directedmetal 3D Sl Multi-mode laser device for metal manufacturing applications
CN216096404U (en) * 2021-10-07 2022-03-22 哈尔滨理工大学 Adjustable air pressurization coaxial powder feeding and spraying device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09220687A (en) * 1996-02-13 1997-08-26 Amada Co Ltd Laser beam machining head
JP2010207877A (en) * 2009-03-11 2010-09-24 Panasonic Corp Welding apparatus and soldering apparatus
CN106637195A (en) * 2016-12-15 2017-05-10 中国矿业大学 Coaxial powder feeding sprayer capable of automatically adjusting light spots and powder feeding positions
CN110079797A (en) * 2019-05-07 2019-08-02 中国矿业大学 A kind of coaxial powder-feeding nozzle adjusting powder stream convergence focus using pneumatic mode
WO2021001054A1 (en) * 2019-07-03 2021-01-07 Directedmetal 3D Sl Multi-mode laser device for metal manufacturing applications
CN110280763A (en) * 2019-07-18 2019-09-27 哈尔滨理工大学 Coaxial powder-feeding laser sintering device
CN112126924A (en) * 2020-08-26 2020-12-25 东南大学 Laser cladding coaxial powder feeding nozzle with outer shielding gas structure
CN111842896A (en) * 2020-09-14 2020-10-30 哈尔滨理工大学 Coaxial powder feeding and spraying device for processing high-complex-appearance workpiece
CN216096404U (en) * 2021-10-07 2022-03-22 哈尔滨理工大学 Adjustable air pressurization coaxial powder feeding and spraying device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115591713A (en) * 2022-09-20 2023-01-13 北京工业大学(Cn) All-dimensional forming gradient functional material coaxial powder feeding nozzle

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