CN216502365U - Coaxial powder feeding nozzle device with adjustable high stability - Google Patents
Coaxial powder feeding nozzle device with adjustable high stability Download PDFInfo
- Publication number
- CN216502365U CN216502365U CN202122401591.1U CN202122401591U CN216502365U CN 216502365 U CN216502365 U CN 216502365U CN 202122401591 U CN202122401591 U CN 202122401591U CN 216502365 U CN216502365 U CN 216502365U
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- laser
- powder
- high stability
- nozzle
- adjustable high
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- 239000000843 powder Substances 0.000 title claims abstract description 61
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 9
- 230000001276 controlling effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000010146 3D printing Methods 0.000 description 8
- 239000000523 sample Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a coaxial powder feeding nozzle device with adjustable high stability, which comprises a laser part, a sensor part, an adjustable gap structure part and a cooling protection part, wherein the laser part is arranged on the laser part; the method is characterized in that: the control and selection of multiple laser beams, the matching of the sensor part and the adjustable structure are responsible for the stability of the device; the basic technical scheme of the utility model is as follows: controlling the quantity of the laser beams to meet the requirements of workpieces with different dimensional accuracies; through the cooperation of sensor measurement processing position information and adjustable clearance structure, stabilize powder focus concentration and diameter to print the coaxial powder nozzle device that send that provides an adjustable high stability for 3D.
Description
Technical Field
The utility model is used for 3D printing, belongs to the field of mechanical structure design, relates to an adjustable high-stability 3D printing coaxial powder feeding nozzle device, and particularly relates to a method for improving the precision and the processing stability of a workpiece by adjusting the clearance of a powder nozzle, the quantity of powder spraying and controlling the quantity of laser beams through sensor feedback information. Meanwhile, the nozzle can be efficiently cooled in time in a large-area annular sleeve water cooling mode, the effect of a cladding molten pool and laser heat radiation on the nozzle is reduced, and the service life of the nozzle is prolonged. Thereby provide the coaxial powder feeding nozzle device of adjustable high stability for 3D prints.
Background
At present, the research on 3D printing equipment in China is rapidly developed, the application of the 3D printing equipment relates to a plurality of fields of aerospace, automobiles, biomedical treatment, buildings and the like, but the current 3D printing products have the disadvantages of low speed, low workpiece precision, poor working stability and difficult processing of workpieces with complex shapes in the processing process. The product quality problem greatly increases the limitation of the application of the 3D printing technology in various fields. The machining precision and other requirements in the fields of medical treatment, aerospace and the like are high, and the standard is difficult to reach.
The utility model solves the defects to a great extent by the characteristics of high efficiency, stability, accuracy, applicability and the like, and improves the precision of 3D printing workpieces. In the aspect of processing, workpieces with different sizes can be efficiently processed by adjusting the powder spraying gap and controlling the quantity of laser beams, the processing precision is improved, the material waste is reduced, and the cost and the time are saved. The powder focusing concentration can be adjusted through different powder nozzle gaps, so that the powder utilization rate is improved.
Disclosure of Invention
The utility model provides a coaxial powder feeding nozzle device for processing a high-precision workpiece;
the basic technical scheme is as follows: the clearance of the manual adjustment powder nozzle is calculated through the information fed back by the sensor measurement to meet the requirements of efficient and stable processing of workpieces with different precisions; the powder utilization rate is improved by adjusting the focal concentration and the diameter of different powder flows; the purpose of timely and rapid cooling is achieved through the large-area water cooling channel, and therefore the novel coaxial powder feeding nozzle device which is high in working efficiency, wide in processing range and good in product quality is provided for 3D printing.
A coaxial powder feeding nozzle device with adjustable high stability comprises a sensor part, a manual regulation part, a laser control part and a cooling protection part; the sensor part is responsible for collecting the focal position information, and the manual regulation and control part is responsible for regulating the telescopic sleeve structure to regulate the powder spraying gap to a specified value; the laser control part is responsible for controlling the quantity of the laser beams and is matched with the cooling protection part to process the workpiece.
The utility model provides a coaxial powder feeding nozzle device of adjustable high stability, laser is controlled how much of laser beam according to the size and the required precision of machined part by the laser, jets out from the nozzle behind central laser pipe and the outer loop laser pipe, assembles with metal powder at the processing point department.
A coaxial powder feeding nozzle device with adjustable high stability is characterized in that low-temperature protective gas can be conveyed to a nozzle through an air hole and a protective air hole for cooling, and plays a role in protection and convergence after being sprayed; the large-area ring sleeve water cooling channel conveys cooling water to carry out real-time rapid water cooling and protect the nozzle.
The utility model has the advantages that: the processing stability is improved by adjusting the size of the gap of the powder nozzle through feedback information of the distance sensor, so that energy-saving and environment-friendly additive manufacturing can be realized, the powder utilization rate is improved, and the processing cost is reduced; the concentration and the diameter of the powder flow focus are adjusted in real time according to different processing requirements, and the processing efficiency is correspondingly improved; meanwhile, the water cooling channel is sleeved with the large-area ring sleeve to cool the nozzle more directly and quickly, so that the nozzle can normally work at a proper temperature for a long time, and a feasible nozzle device is provided for processing products with high precision and stable quality.
Drawings
FIG. 1 is a front view of an adjustable high stability coaxial powder feed nozzle assembly.
Fig. 2 is a structural top view of an adjustable high-stability coaxial powder feeding nozzle device.
Fig. 3 is a structural side view of an adjustable high stability coaxial powder feed nozzle device.
FIG. 4 is a half-sectional view of a coaxial powder feeding nozzle device with high stability.
FIG. 5 is a quarter sectional view of an adjustable high stability coaxial powder feed nozzle assembly.
FIG. 6 is a schematic axial view of an adjustable, high stability coaxial powder delivery nozzle assembly.
Wherein: 1 air hole, 2 connecting cylinders, 3 powder feeding holes, 4 powder cylinders, 5 protective air cylinders, 6 protective air holes, 7 inner cones, 8 middle cones, 9 outer cones, 10 central laser tubes, 11 outer ring laser tubes, 12 water inlets, 13 water outlets, 14 first sensor probes, 15 second sensor probes
The specific implementation mode is as follows:
the matching relationship and the function of the parts of the utility model are explained below with the accompanying drawings:
as shown in fig. 1, 2, and 4: the connecting cylinder 2 is connected with the powder cylinder 4 through a telescopic sleeve; the powder cylinder 4 is in threaded connection with the protection gas cylinder 5; the inner cone 7, the middle cone 8 and the outer cone 9 are respectively in threaded connection with the connecting cylinder 2, the powder cylinder 4 and the protection gas cylinder 5.
As shown in fig. 1, 2, and 5: a central laser tube 10 and eight outer ring laser tubes 11 are respectively connected with the connecting cylinder 2 and the inner cone 7 at the lower end part, and the upper end part is connected with a laser; the lower ends of the six powder feeding holes 3 are connected with a spray head, the upper ends of the six powder feeding holes are connected with a powder feeding device, and the lower ends of the six powder feeding holes are connected with a powder spraying channel between the powder cylinder 4 and the connecting cylinder 2; the lower ends of the four cooling protective gas pipes 6 are connected with a protective gas channel between the powder cylinder 4 and the protective gas cylinder 5 and connected with a protective gas conveying device.
The working mode of the utility model is explained below with the attached drawings:
as shown in fig. 1, 2, and 4: the sensor probes 14 and 15 feed back the detected powder focus diameter to an external device to calculate a reasonable gap, and then the telescopic sleeve between the connecting cylinder 2 and the powder cylinder 4 is manually controlled to adjust the powder spraying gap. The smaller powder spraying gap can improve the powder spraying speed and reduce the focal radius, but increases the kinetic energy loss and influences the flow of the powder, the exact value needs to be given by calculation and analysis, and the ideal adjusting range is between 1.5mm and 3.5 mm.
As shown in fig. 4 and 5: the laser controls the amount of laser beams according to the size and precision requirements of a workpiece, the laser beams are emitted from the nozzle after passing through the central laser tube 10 and the outer ring laser tube 11, and the laser beams are converged with metal powder at a processing point. The metal powder is conveyed to the powder feeding hole 3 by the powder storing and spraying device and is sprayed out. When the six powder feeding holes spray powder, the protective gas holes 6 convey protective gas, and cooling water is introduced into the water cooling channel to implement rapid water cooling so as to protect the nozzles.
Claims (3)
1. A coaxial powder feeding nozzle device with adjustable high stability comprises a sensor part, a manual regulation part, a laser control part and a cooling protection part; the method is characterized in that: the sensor part is responsible for collecting the focal position information, and the manual regulation and control part is responsible for regulating the telescopic sleeve structure to regulate the powder spraying gap to a specified value; the laser control part is responsible for controlling the quantity of the laser beams and is matched with the cooling protection part to process the workpiece.
2. An adjustable high stability coaxial powder feed nozzle assembly as defined in claim 1 further characterized by: the laser controls the amount of laser beams according to the size and precision requirements of a workpiece by a laser, the laser beams are emitted from a nozzle after passing through a central laser tube (10) and an outer ring laser tube (11), and the laser beams are converged with metal powder at a processing point.
3. An adjustable high stability coaxial powder feed nozzle assembly as defined in claim 2 further characterized by: the low-temperature protective gas can be conveyed to the nozzle for cooling through the gas holes (1) and the protective gas holes (6), and plays a role in protection and convergence after being sprayed; the large-area ring sleeve water cooling channel conveys cooling water to carry out real-time rapid water cooling and protect the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122401591.1U CN216502365U (en) | 2021-10-05 | 2021-10-05 | Coaxial powder feeding nozzle device with adjustable high stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122401591.1U CN216502365U (en) | 2021-10-05 | 2021-10-05 | Coaxial powder feeding nozzle device with adjustable high stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216502365U true CN216502365U (en) | 2022-05-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122401591.1U Expired - Fee Related CN216502365U (en) | 2021-10-05 | 2021-10-05 | Coaxial powder feeding nozzle device with adjustable high stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216502365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618086A (en) * | 2021-10-05 | 2021-11-09 | 哈尔滨理工大学 | Coaxial powder feeding nozzle device with high precision and high stability |
-
2021
- 2021-10-05 CN CN202122401591.1U patent/CN216502365U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618086A (en) * | 2021-10-05 | 2021-11-09 | 哈尔滨理工大学 | Coaxial powder feeding nozzle device with high precision and high stability |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220513 |