CN208180254U - A kind of coaxial powder feeding apparatus solving gravity segregation - Google Patents
A kind of coaxial powder feeding apparatus solving gravity segregation Download PDFInfo
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- CN208180254U CN208180254U CN201820476487.4U CN201820476487U CN208180254U CN 208180254 U CN208180254 U CN 208180254U CN 201820476487 U CN201820476487 U CN 201820476487U CN 208180254 U CN208180254 U CN 208180254U
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- laser
- powder feeding
- coaxial powder
- electromagnetic field
- condenser
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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
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Abstract
The utility model relates to a kind of coaxial powder feeding apparatus for solving gravity segregation, belong to rapid shaping technique field.Including coaxial powder feeding device, generating device of laser and for generating the electromagnetic field generator for converting magnetic field, wherein the generating device of laser includes laser, lattice gear mirror and condenser, the laser, lattice gear mirror and condenser are located in same optical path, after the laser beam that the laser issues is focused by condenser, mirror is kept off by lattice again and exposes to workpiece surface, and the electromagnetic field generator is located at the top setting of the meal outlet of the coaxial powder feeding device.When carrying out 3D printing increasing material manufacturing using the coaxial powder feeding apparatus described in the utility model for solving gravity segregation, have the advantages that printing precision is high, printing effect is good.
Description
Technical field
The utility model relates to a kind of coaxial powder feeding apparatus for solving gravity segregation, belong to rapid shaping technique field.
Background technique
3D printing is a kind of method for making three-dimensional reinforcing object from mathematical model, with special wax material, powdery metal
Or the adhesive materials such as plastics, construct the technology of object by layer-by-layer printing.Usually in mold manufacture, industrial design
Equal fields are used for modeling or the direct manufacture for some products.Currently, 3D printing technique is broadly divided into two major classes,
One kind is moulding material to be prepared to shaping position in advance, including complete dusty material in advance or install photosensitive resin or in advance paving
Good stratified material, as selective laser sintering (SLS), selective laser melt (SLM), stereolithography apparatus (SLA), layering
Entity manufactures (LOM) etc.；It is another kind of be need not laying good moulding material in advance, but powder feeding progress synchronous with molding is coaxial
Powder-feeding laser printing shaping technology.In the 3D printing forming process of coaxial powder-feeding, the spray head due to coaxial powder feeding device is dusting
Process, the powder of ejection will receive gravity influence, decline powder body material i.e. to predetermined position, lead to molding effect not
It is good.
Utility model content
In view of the above technical problems, the utility model provides a kind of coaxial powder feeding apparatus for solving gravity segregation.
In order to solve the above technical problems, technical solution adopted in the utility model is: a kind of to solve the same of gravity segregation
Axis dust feeder, including coaxial powder feeding device, generating device of laser and electromagnetic field generator for generating transformation magnetic field, wherein institute
Stating generating device of laser includes laser, lattice gear mirror and condenser, and the laser, lattice gear mirror and condenser are located at same optical path
On, after the laser beam that the laser issues is focused by condenser, then mirror is kept off by lattice and exposes to workpiece surface, it is described
Electromagnetic field generator is located at the top setting of the meal outlet of the coaxial powder feeding device.
Further, the electromagnetic field generator is connect with DC power supply bipolar converter, for making the electromagnetic field
Generator generates the variable electromagnetic field of magnetic direction.
Further, the electromagnetic field generator is the spiral winding for generating electromagnetic field, and the spiral winding passes through
Conducting wire is electrically connected with DC power supply bipolar converter.
Further, the lattice gear mirror is resin or glass material, for slackening optical path internal reflection luminous intensity.
Further, optically focused lens actuator is additionally provided on the condenser.
The utility model due to using the technology described above, the technical effect reached are as follows:
(1) coaxial powder feeding apparatus described in the utility model for solving gravity segregation, passes through the meal outlet in coaxial powder feeding device
Top setting can produce transformation magnetic field electromagnetic field generator, on top under the action of electromagnetic field generator on gravity direction
Certain gradient magnetic is provided, so that spray head can offset powder when spraying with magnetic powder under the action of a magnetic force
The influence of body self gravity, so that magnetic powder will not decline because of Gravity Problem in not up to Laser Welding contact, so as to
To realize the purpose of powder Yu laser coaxial welding fabrication to the greatest extent.In addition, using the electromagnetic field that can produce transformation magnetic field
When generator, for the magnetic powder that the coaxial powder feeding device spray head to a different directions sprays, real-time transform magnetic field can be passed through
Direction realizes that the magnetic powder that different emission directions spray can offset the influence of its gravity under magnetic fields, practical using this
When the novel coaxial powder feeding apparatus for solving gravity segregation carries out 3D printing increasing material manufacturing, there is printing precision height, printing effect
The good advantage of fruit.
(2) coaxial powder feeding apparatus described in the utility model for solving gravity segregation, is arranged also on generating device of laser and swashs
Light device, lattice gear mirror and condenser, the focusing purpose of the laser of laser sending can be improved in condenser, and lattice gear mirror can play
Weaken the effect of optical path internal reflection luminous intensity, while protecting laser head.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is the overall structure diagram of the utility model.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, it is described in the utility model solve gravity segregation coaxial powder feeding apparatus, including coaxial powder feeding device 1, swash
Light generating apparatus 2 and for generate transformation magnetic field electromagnetic field generator 3, wherein the generating device of laser 2 include laser
21, lattice gear mirror 22 and condenser 23, the laser 21, lattice gear mirror 22 and condenser 23 are located in same optical path, the laser
After the laser beam that device issues is focused by condenser, then mirror being kept off by lattice and exposes to workpiece surface, the electromagnetic field occurs
Device 3 is located at the top setting of the meal outlet of the coaxial powder feeding device 1.
Further, electromagnetic field generator 3 described in present embodiment is connect with DC power supply bipolar converter 4,
In, the DC power supply bipolar converter 4 can choose DC power supply bipolar converter general in the prior art, pass through
The electromagnetic field generator can be made to generate the variable electromagnetic field of magnetic direction using DC power supply bipolar converter.
Further, in present embodiment, the electromagnetic field generator 3 is more preferably the spiral shell for generating electromagnetic field
Spin line circle, the spiral winding are electrically connected by conducting wire with DC power supply bipolar converter 4.
Further, in present embodiment, the lattice gear mirror 22 is resin or glass material, for slackening optical path internal reflection
Luminous intensity.
Further, optically focused lens actuator 24 is additionally provided on the condenser 23.
Above embodiment when in use, determines the magnetic field strength for needing to apply, the meter of magnetic field strength according to powder first
Calculate formula are as follows:
Wherein, H is magnetic field strength, A/m,
QPowder: rate of powder, cm3/s；
Δ t: powder is ejected into molding time, s；
ρPowder: apparent density of powder, g/cm3；
X: magnet specific susceptibility, cm/g；
LMagneticFor length of magnetic field, m；
V is magnet volume, m3。
During the laser deposition of coaxial powder-feeding manufactures part, the magnetic field strength of needs is calculated according to above-mentioned formula
And after gradient magnetic field strength HDH/DL, apply required gradient magnetic, it can be under the action of electromagnetic field generator on top
Certain gradient magnetic is provided on gravity direction so that spray head spray with magnetic powder when, under the action of a magnetic force
The influence of powder self gravity can be offset, so that magnetic powder will not be because of Gravity Problem, in not up to Laser Welding contact
Decline, so as to realize the purpose of powder Yu laser coaxial welding fabrication to the greatest extent.
Above embodiment is intended to illustrate the utility model and can realize or use for professional and technical personnel in the field, right
Above embodiment, which is modified, will be readily apparent to those skilled in the art, therefore the utility model includes
But it is not limited to above embodiment, it is any to meet the claims or specification description, meet and principles disclosed herein
With novelty, the method for inventive features, technique, product, each fall within the protection scope of the utility model.
Claims (5)
1. a kind of coaxial powder feeding apparatus for solving gravity segregation, it is characterised in that: filled including coaxial powder feeding device (1), laser
(2) and the electromagnetic field generator (3) for generating transformation magnetic field are set, wherein the generating device of laser (2) includes laser
(21), lattice gear mirror (22) and condenser (23), the laser (21), lattice gear mirror (22) and condenser (23) are located at same optical path
On, after the laser beam that the laser issues is focused by condenser, then mirror is kept off by lattice and exposes to workpiece surface, it is described
Electromagnetic field generator (3) is located at the top setting of the meal outlet of the coaxial powder feeding device (1).
2. solving the coaxial powder feeding apparatus of gravity segregation as described in claim 1, it is characterised in that: the electromagnetic field generator
(3) it is connect with DC power supply bipolar converter (4), for making the electromagnetic field generator generate the variable electromagnetism of magnetic direction
?.
3. solving the coaxial powder feeding apparatus of gravity segregation as claimed in claim 2, it is characterised in that: the electromagnetic field generator
It (3) is the spiral winding for generating electromagnetic field, the spiral winding passes through conducting wire and DC power supply bipolar converter (4) electricity
Connection.
4. the coaxial powder feeding apparatus of the solution gravity segregation as described in claims 1 to 3 is any, it is characterised in that: the lattice gear
Mirror (22) is resin or glass material, for slackening optical path internal reflection luminous intensity.
5. solving the coaxial powder feeding apparatus of gravity segregation as claimed in claim 4, it is characterised in that: on the condenser (23)
It is additionally provided with optically focused lens actuator (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820476487.4U CN208180254U (en) | 2018-04-04 | 2018-04-04 | A kind of coaxial powder feeding apparatus solving gravity segregation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820476487.4U CN208180254U (en) | 2018-04-04 | 2018-04-04 | A kind of coaxial powder feeding apparatus solving gravity segregation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208180254U true CN208180254U (en) | 2018-12-04 |
Family
ID=64436268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820476487.4U Active CN208180254U (en) | 2018-04-04 | 2018-04-04 | A kind of coaxial powder feeding apparatus solving gravity segregation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208180254U (en) |
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2018
- 2018-04-04 CN CN201820476487.4U patent/CN208180254U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Military Standard Quality Testing (Shenyang) Co.,Ltd. Assignor: SHENYANG JINGHE CNC TECHNOLOGY DEVELOPMENT CO.,LTD. Contract record no.: X2023210000077 Denomination of utility model: A Coaxial Powder Feeding Device for Solving Gravity Segregation Granted publication date: 20181204 License type: Common License Record date: 20230901 |
|
| EE01 | Entry into force of recordation of patent licensing contract |