CN113333916A - Rotary ultrasonic vibration gas current-carrying powder feeder and electric arc material increase system - Google Patents
Rotary ultrasonic vibration gas current-carrying powder feeder and electric arc material increase system Download PDFInfo
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- CN113333916A CN113333916A CN202110611891.4A CN202110611891A CN113333916A CN 113333916 A CN113333916 A CN 113333916A CN 202110611891 A CN202110611891 A CN 202110611891A CN 113333916 A CN113333916 A CN 113333916A
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- transfer chamber
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- 239000000843 powder Substances 0.000 title claims abstract description 152
- 238000010891 electric arc Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 title description 3
- 238000012546 transfer Methods 0.000 claims abstract description 42
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 239000000654 additive Substances 0.000 claims abstract description 14
- 230000000996 additive effect Effects 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000000956 alloy Substances 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 8
- 238000012545 processing Methods 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
Abstract
The invention belongs to the field of metal materials, and particularly relates to a rotary ultrasonic vibration gas current-carrying powder feeder and an electric arc additive system. Comprises a powder cylinder and a transfer chamber arranged below the powder cylinder; a rotatable ultrasonic vibration stirring rod is arranged in the powder cylinder, and powder in the powder cylinder uniformly falls into the transfer chamber through a powder cylinder through hole at the bottom end of the powder cylinder through ultrasonic vibration and stirring; the powder transferring chamber is internally provided with a hub and a transferring chamber through hole, a plurality of hole grooves are evenly distributed on the circumferential surface of the hub, the upper part of the transferring chamber through hole is connected with a gas cylinder, after the powder in the powder cylinder falls into the transferring chamber, the hub rotates, so that the powder in the hole grooves of the hub is driven to enter the transferring chamber through hole, and the powder transferred by the hub is uniformly and stably conveyed to deposited metal through gas from the bottom of the through hole. The invention can solve the problem that the powder has poor flowability and cannot fall from the powder cylinder through the rotatable ultrasonic vibrating rod, and increases the applicability of the powder feeder to powder with different flowability.
Description
Technical Field
The invention belongs to the field of metal materials, and particularly relates to a rotary ultrasonic vibration gas current-carrying powder feeder and an electric arc additive system.
Background
At present, the performance requirements of the industry on metal materials are gradually improved, how to conveniently and quickly adjust alloy components to process materials to improve the performance of parts becomes a hot point of research, the problem that the performance of welding wires with fixed components is difficult to improve can be effectively solved by blowing the alloy powder into a molten pool and smelting the alloy powder and the welding wires at high temperature in a gas current-carrying powder feeding mode, but the manufacturing modes and particle sizes of different alloy powders are greatly different, and a powder feeder is easy to block a powder falling hole and cannot smoothly transfer the powder in the powder feeding process due to poor powder flowability, for example, patent CN2788954Y discloses a welding negative-pressure powder feeding device which comprises a powder barrel, a transfer chamber immediately below the powder barrel and a hub arranged in the transfer chamber. The powder cylinder is communicated with the transfer chamber through an air pipe; a rotating shaft driven by a motor is transversely arranged in the transfer chamber, and a lower discharge hole is also formed at the bottom of the transfer chamber; the hub is detachable and is arranged on a rotating shaft of the transfer chamber, and a plurality of hole grooves are formed in the circumference of the hub. The negative pressure is kept in the powder cylinder, so that the powder can fall from the powder cylinder and is conveyed through the rotation of the hub. Although the negative pressure powder feeder can solve the problem of controlling the powder feeding amount through the rotating speed and the size of the notch, the hub is directly connected with the through hole and the powder falling hole of the powder cylinder, if the powder feeding amount is too large, the blockage of a powder feeding pipeline can be caused, and the non-spheroidizing powder with higher viscosity, easy agglomeration and accumulation and poor flowability is difficult to drop into a transfer chamber, so that the powder amount is difficult to control when the hub conveys the powder.
With the development of robot welding automation and 3D printing technology, the production of metal parts with complex structures by additive manufacturing is becoming more and more the key point of scientific research, and typical arc additive manufacturing is to use an automatic welding robot and a digital wire feeding system, to melt welding wires into liquid deposited metal by the robot according to a set processing path by reasonably controlling heat input and wire feeding amount, and to stack the welding wires layer by layer until the part processing is completed, but alloy components in the welding wires are fixed, and if the performance of the part is to be improved, the additive manufacturing can be performed only by using the welding wires with different components, so that the part processing consumes time.
Disclosure of Invention
The invention aims to provide a rotary ultrasonic vibration gas carrier powder feeder and an arc additive system.
The technical solution for realizing the purpose of the invention is as follows: a rotary ultrasonic vibration gas current-carrying powder feeder comprises a powder cylinder and a transfer chamber arranged below the powder cylinder;
a rotatable ultrasonic vibration stirring rod is arranged in the powder cylinder, and powder in the powder cylinder uniformly falls into the transfer chamber through a powder cylinder through hole at the bottom end of the powder cylinder through ultrasonic vibration and stirring;
the powder transferring chamber is internally provided with a hub and a transferring chamber through hole, a plurality of hole grooves are uniformly distributed on the circumferential surface of the hub, the upper part of the transferring chamber through hole is connected with a gas cylinder, after the powder in the powder cylinder falls into the transferring chamber, the hub rotates to drive the powder in the hole grooves of the hub to enter the transferring chamber through hole, and the powder transferred by the hub is uniformly and stably conveyed to deposited metal from the bottom of the through hole through gas.
Furthermore, a powder cylinder top cover is arranged on the upper portion of the powder cylinder, the lower portion of the powder cylinder is funnel-shaped, and a powder cylinder through hole is formed in the funnel-shaped bottom of the powder cylinder.
Furthermore, a stirring shaft is arranged on the rotatable ultrasonic vibration stirring rod, the stirring shaft is perpendicular to the axis of the vibration stirring rod, and the stirring shaft is arranged at the lower part of the vibration stirring rod.
Furthermore, the device also comprises a fixing device, a transducer and a horn; the fixing device is connected with the motor, and the transducer and the amplitude transformer are sleeved on the vibration stirring rod.
Furthermore, a stepped pivot hole is further formed in the transfer chamber, a bearing is arranged in the pivot hole, one end of the rotating shaft penetrates through the bearing to be connected with a hub in the transfer chamber, and the other end of the rotating shaft extends out of the transfer chamber to be connected with the motor.
Furthermore, a powder discharge hole is arranged at the center of the bottom of the transfer chamber, and redundant powder in the cavity of the transfer chamber is discharged.
Furthermore, the hub is detachably fastened on the rotating shaft of the transfer chamber, and the number and the size of the slotted holes on the circumferential surface of the hub can be determined according to the type of powder and the required powder feeding amount.
Furthermore, different powder feeding speeds can be obtained by adjusting the value of air flow, the rotating speed of the motor or replacing hubs with different slotted holes.
An electric arc additive system comprises a welding gun, a wire feeding system and the powder feeder.
Compared with the prior art, the invention has the remarkable advantages that:
(1) the invention is characterized in that a rotatable ultrasonic vibrating rod is arranged at the center of an upper top cover, the top of the vibrating rod is connected with a motor, a cylindrical stirring shaft is arranged at the lower end of the vibrating rod, the vibrating rod is driven by the motor to rotate and stir powder, an ultrasonic vibrating device generates vibration through an energy converter and an amplitude transformer to disperse powder which is agglomerated into a pile, and the powder can continuously enter a cavity of a transfer chamber from a powder falling hole through rotation and vibration.
(2) According to the invention, the transfer chamber is arranged, the powder continuously and uniformly falls into the transfer chamber and continuously fills the cavity, the hub in the cavity is rotated by the rotation of the external motor, the hole groove in the center of the circumference of the hub is filled with the powder, the powder is conveyed to the round groove surface in the middle of the through hole by the rotation of the hub, the powder falls into the through hole channel from the hub hole groove due to the action of gravity, the gas at the top of the through hole blows the powder into the molten pool along the powder feeding pipe connected with the bottom of the through hole, the rotation speed of the hub in the cavity is controlled by the external motor, and the size and the number of the hole groove in the center of the circumference of the hub can be customized and processed, so that the problem of controlling the powder feeding amount of the powder feeding device is effectively solved.
(3) The ingredients of a single wire in the electric arc additive manufacturing process are determined, so that the performance of an additive part cannot be greatly changed, a large amount of time is consumed for researching the ingredient proportion of the wire for producing the wire when the wire is required to be replaced for processing, the alloy type in a powder barrel can be conveniently and quickly changed by a wire powder compounding and additive manufacturing mode, the performance of alloy additive parts with different ingredients can be researched by the proportion of different types of powder and different types of wire powder, the production cycle of high-performance parts manufactured by additive manufacturing is greatly shortened, the stirring vibration of the powder in the powder barrel by a rotatable ultrasonic vibration stirring rod can ensure that the powder is uniformly and continuously filled in a cavity of a transfer chamber, the problem that the powder with poor fluidity cannot fall from the powder barrel is effectively solved, and the quantity of the alloy powder fed into a molten pool can be accurately controlled by adjusting the rotating speed of a motor or the size and the quantity of hubs, the applicability of the powder feeder to different types of powder is increased.
Drawings
Fig. 1 is a cut-away front view of a gas-carrying powder feeder of the present invention.
Fig. 2 is a cut-away side view of a gas-carrying powder feeder of the present invention.
Fig. 3 is a three-dimensional schematic view of a gas-carrying powder feeder of the present invention.
Description of reference numerals:
1-fixing device, 2-transducer, 3-amplitude transformer, 4-powder cylinder top cover, 5-powder cylinder, 6-ultrasonic vibrating rod, 7-stirring shaft, 8-bottom funnel, 9-powder cylinder through hole, 10-transfer chamber, 11-hub, 12-bearing, 13-rotating shaft, 14-transfer chamber through hole and 15-powder discharge hole.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
As shown in fig. 1 and 2, the present invention provides an arc additive rotating ultrasonic vibration gas carrier powder feeder, which comprises a powder cylinder 5, a rotatable ultrasonic vibration rod 6, a transfer chamber 10 immediately below the powder cylinder, and a hub 11 arranged in the transfer chamber.
The ultrasonic vibration rod is arranged at the center of the top cover 4 of the powder cylinder, the vibration rod 6 comprises a fixing device 1, an energy converter 2 and an amplitude transformer 3, a cylindrical stirring shaft 7 is arranged below the vibration rod 6, the fixing device 1 at the top of the vibration rod 6 is connected with a motor, the energy converter 2 and the amplitude transformer 3 are sleeved on the vibration rod 6, and the energy converter 2 is connected with an external power supply and the amplitude transformer 3 through leads; the bottom of the powder cylinder 5 is provided with a through hole 9 which is communicated with the transfer chamber 10, and in the invention, the cylinder wall above the through hole 9 is in a funnel shape, thereby leading the powder to fall evenly.
The side wall of the transfer chamber 10 is provided with a stepped pivot hole, a bearing 12 is arranged in the pivot hole, a rotating shaft 13 penetrates through the bearing 12, one end of the rotating shaft is connected with a hub 11 in the transfer chamber, and the other end of the rotating shaft extends out of the transfer chamber 10 to be connected with a motor. The top and the bottom of the side wall of the transfer chamber 10 are provided with a through hole 14, the top of the through hole 14 is connected with an air bottle through an air pipe, the bottom of the through hole is a powder falling hole, and powder transferred by the hub 11 is uniformly and stably conveyed into deposited metal from the bottom of the through hole 14 through air; the transfer chamber 10 has a powder discharge hole 15 at the center of the bottom thereof for discharging excess powder from the transfer chamber cavity.
The hub 11 is detachably fastened on the rotating shaft of the transfer chamber, a plurality of holes are arranged on the circumferential surface of the hub 11, the circumferential surface of the hub is arranged on one side of the through hole of the cylinder wall, and the other side of the circumferential surface of the hub 11 is a circular groove surface of the through hole 14. The number and size of the slots on the circumferential surface of the hub 11 can be designed according to the type of powder and the required powder feeding amount, and the slots can be replaced independently according to the requirement in use.
When the powder conveying device is used, the motor connected with the vibrating rod 6 needs to continuously rotate to drive the stirring shaft 7 to stir powder in the powder barrel, the ultrasonic vibrating rod 6 needs to continuously generate vibration waves to disperse the powder in the powder barrel into small particles, the powder falls into the conveying chamber 10 through the through hole 9 under the action of gravity, the powder quantity of the cavity in the conveying chamber is continuously filled, and the fact that the hub 11 can convey enough powder is guaranteed. In practical use, different powder feeding speeds can be obtained by adjusting the value of air flow, the rotating speed of the motor or replacing hubs with different slotted holes.
Claims (9)
1. A rotary ultrasonic vibration gas current-carrying powder feeder is characterized by comprising a powder cylinder and a transfer chamber arranged below the powder cylinder;
a rotatable ultrasonic vibration stirring rod is arranged in the powder cylinder, and powder in the powder cylinder uniformly falls into the transfer chamber through a powder cylinder through hole at the bottom end of the powder cylinder through ultrasonic vibration and stirring;
the powder transferring chamber is internally provided with a hub and a transferring chamber through hole, a plurality of hole grooves are uniformly distributed on the circumferential surface of the hub, the upper part of the transferring chamber through hole is connected with a gas cylinder, after the powder in the powder cylinder falls into the transferring chamber, the hub rotates to drive the powder in the hole grooves of the hub to enter the transferring chamber through hole, and the powder transferred by the hub is uniformly and stably conveyed to deposited metal from the bottom of the through hole through gas.
2. The powder feeder according to claim 1, wherein a top cover of the powder cylinder is arranged at the upper part of the powder cylinder, the lower part of the powder cylinder is funnel-shaped, and a through hole of the powder cylinder is arranged at the bottom of the funnel-shaped.
3. The powder feeder according to claim 2, wherein the rotatable ultrasonic vibration stirring rod is provided with a stirring shaft, the stirring shaft is arranged perpendicular to the axis of the vibration stirring rod, and the stirring shaft is arranged at the lower part of the vibration stirring rod.
4. The powder feeder according to claim 3, further comprising a fixture, a transducer and a horn; the fixing device is connected with the motor, and the transducer and the amplitude transformer are sleeved on the vibration stirring rod.
5. The powder feeder according to claim 4, wherein the transfer chamber further comprises a stepped pivot hole, a bearing is disposed in the pivot hole, one end of the rotating shaft passing through the bearing is connected to a hub in the transfer chamber, and the other end of the rotating shaft extends out of the transfer chamber and is connected to the motor.
6. The powder feeder of claim 5, wherein the transfer chamber has a powder discharge hole at a central location in a bottom thereof for discharging excess powder from the transfer chamber cavity.
7. The powder feeder according to claim 6, wherein the hub is removably fastened to the rotary shaft of the transfer chamber, and the number and size of the slots on the circumferential surface of the hub are determined according to the type of powder and the required powder feeding amount.
8. The powder feeder according to claim 7, wherein the different powder feeding speeds are obtained by adjusting the value of the air flow, the rotation speed of the motor or replacing the hub with different slots.
9. An electric arc additive system comprising a welding gun, a wire feed system and a powder feeder according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110611891.4A CN113333916A (en) | 2021-06-02 | 2021-06-02 | Rotary ultrasonic vibration gas current-carrying powder feeder and electric arc material increase system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110611891.4A CN113333916A (en) | 2021-06-02 | 2021-06-02 | Rotary ultrasonic vibration gas current-carrying powder feeder and electric arc material increase system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113333916A true CN113333916A (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110611891.4A Pending CN113333916A (en) | 2021-06-02 | 2021-06-02 | Rotary ultrasonic vibration gas current-carrying powder feeder and electric arc material increase system |
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| Country | Link |
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| CN (1) | CN113333916A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115351935A (en) * | 2022-08-04 | 2022-11-18 | 安徽新涛光电科技有限公司 | Casting equipment for casting plate and preparation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2447056Y (en) * | 2000-09-25 | 2001-09-12 | 中国科学院力学研究所 | Fine powder constant-weight supplying device for hot spraying |
| CN101117711A (en) * | 2007-09-14 | 2008-02-06 | 华中科技大学 | Powder feeder for manufacturing function gradient element or material |
| CN104131160A (en) * | 2014-08-01 | 2014-11-05 | 昆明理工大学 | Ultrasonic intensified leaching method for refractory gold ores and ultrasonic intensified gold leaching stirrer |
| CN106925417A (en) * | 2017-04-20 | 2017-07-07 | 蚌埠硅基材料产业技术研究院有限公司 | A kind of micron and sub-micron rank powder hydraulic grading device |
| CN110777377A (en) * | 2019-12-17 | 2020-02-11 | 济南大学 | Laser cladding powder feeder |
-
2021
- 2021-06-02 CN CN202110611891.4A patent/CN113333916A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2447056Y (en) * | 2000-09-25 | 2001-09-12 | 中国科学院力学研究所 | Fine powder constant-weight supplying device for hot spraying |
| CN101117711A (en) * | 2007-09-14 | 2008-02-06 | 华中科技大学 | Powder feeder for manufacturing function gradient element or material |
| CN104131160A (en) * | 2014-08-01 | 2014-11-05 | 昆明理工大学 | Ultrasonic intensified leaching method for refractory gold ores and ultrasonic intensified gold leaching stirrer |
| CN106925417A (en) * | 2017-04-20 | 2017-07-07 | 蚌埠硅基材料产业技术研究院有限公司 | A kind of micron and sub-micron rank powder hydraulic grading device |
| CN110777377A (en) * | 2019-12-17 | 2020-02-11 | 济南大学 | Laser cladding powder feeder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115351935A (en) * | 2022-08-04 | 2022-11-18 | 安徽新涛光电科技有限公司 | Casting equipment for casting plate and preparation method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210903 |