CN109226778B

CN109226778B - Metal powder particle preparation device

Info

Publication number: CN109226778B
Application number: CN201811371593.7A
Authority: CN
Inventors: 徐辉; 张桐唯
Original assignee: Shenzhen Chuangyuan Aerospace Technology Co ltd
Current assignee: Shenzhen Chuangyuan Aerospace Technology Co ltd
Priority date: 2018-11-15
Filing date: 2018-11-15
Publication date: 2024-01-30
Anticipated expiration: 2038-11-15
Also published as: CN109226778A

Abstract

The invention discloses a metal powder particle preparation device which is arranged on a machine tool body and comprises an electrode assembly and a flushing system, wherein the electrode assembly is provided with a cavity, and the cavity is provided with a flushing inlet and a flushing outlet for flushing liquid to flow in from the flushing inlet, flow through the cavity and flow out towards an interelectrode discharge area through the flushing outlet; the flushing system comprises an inner flushing pipe which is communicated with the flushing inlet. In the technical scheme provided by the invention, after the electrode assembly and the workpiece are respectively connected with the positive electrode and the negative electrode of the power supply, the electrode assembly and the workpiece are mutually close to each other and generate relative high-speed rotary motion, and then the flushing liquid flows out towards the interelectrode discharge area by arranging the cavity, the flushing liquid inlet and the flushing liquid outlet in the electrode assembly, so that the arc discharge explosion erosion processing of the workpiece is realized, and the required workpiece particles are obtained.

Description

Metal powder particle preparation device

Technical Field

The invention relates to the technical field of arc processing devices, in particular to a metal powder particle preparation device.

Background

Nowadays, metal 3D printing technology is rapidly developed, has wide application in the fields of aerospace, automobiles, ships, medicine, household appliances and the like, and also has unique position in the fields of engineering, teaching research and the like.

The raw material of the metal 3D printing technology is metal powder particles with certain shape and performance requirements, and the metal 3D printing technology is commonly used at present, for example, titanium alloy, aluminum alloy, high-temperature alloy, die steel, nickel-based alloy powder particles and the like. The metal powder particles are usually prepared by using a radio frequency plasma method, a plasma rotating electrode method, an air atomization method and the like, but the preparation method has the defects of low production efficiency, coarse powder particles, uneven particle size distribution, complex preparation process, high cost and the like, and is difficult to meet the large demand of the fields of 3D printing manufacturing and the like for high-quality powder particles.

The high-efficiency arc discharge explosion etching processing technology is a high-efficiency processing method which is developed in recent years. The method utilizes the discharge between the workpiece and the tool electrode to form arc plasma, realizes arc breaking and discharging of molten workpiece materials through high-speed relative mechanical movement of the tool electrode and the workpiece and high-pressure fluid, and realizes high-efficiency removal of various difficult-to-cut metal materials.

It is found that in the arc discharge process, the workpiece material under the action of high-energy density arc can be melted and even gasified rapidly, the arc plasma can be offset and cut off on the surface of the workpiece under the action of high-speed relative mechanical movement between the tool electrode and the workpiece and the action of high-speed flushing liquid in the expanding process, under the condition, the molten zone on the surface of the workpiece can be exploded due to the change of the morphology of the arc plasma, the material is thrown out of the molten zone so as to finish material removal, and the thrown liquid and gaseous metal materials are cooled rapidly in the interelectrode high-speed working liquid to form a large number of etched particles.

According to the technical search, the device for preparing the metal powder for 3D printing is disclosed in a patent document CN105345019A, and the device is used for preparing the metal powder by utilizing an arc discharge machining technology through controlling arc breaking through external flushing liquid and mechanical movement under the protection of inert gas; because the method uses the external flushing liquid, the distance between the electrode and the workpiece is only about 1mm in actual arc discharge machining, the flushing liquid is difficult to enter a discharge area, the excessive burning is extremely easy to cause the contact short circuit between the electrode and the workpiece, and the powder preparation efficiency is low.

The device for preparing metal powder by vacuum arc disclosed in patent document CN201720661052.2, the device melts metal wires connected with two poles of a power supply under the action of the arc to form metal droplets under the vacuum condition, the metal droplets are blown away into tiny spherical droplets by gas from a gas source, and powder particles are formed after cooling; because the method uses metal wires as two poles under the vacuum condition, the preparation process is complex, the powder particle production efficiency is low, and the mass preparation is difficult.

Disclosure of Invention

The invention mainly aims to provide a metal powder particle preparation device, and aims to solve the problems of low powder forming rate, poor sphericity, low production efficiency and high economic cost of the existing metal powder particle preparation device.

In order to achieve the above object, the present invention provides a metal powder particle preparation apparatus provided in a machine tool body, the metal powder particle preparation apparatus comprising:

the electrode assembly is provided with a cavity, and the cavity is provided with a flushing liquid inlet and a flushing liquid outlet so that flushing liquid can flow in from the flushing liquid inlet, flow through the cavity and flow out towards the interelectrode discharge area through the flushing liquid outlet; the method comprises the steps of,

the flushing system comprises an inner flushing pipe, and the inner flushing pipe is communicated with the flushing inlet.

Preferably, the electrode assembly includes:

the electrode seat is provided with the cavity, and one side wall of the electrode seat is provided with the flushing liquid inlet; the method comprises the steps of,

the electrode body is arranged at the lower end of the electrode seat, a plurality of outflow channels are penetrated along the upper and lower directions of the electrode body, the upper ends of the outflow channels are communicated with the cavity, and the lower ends of the outflow channels are correspondingly the flushing liquid outlet.

Preferably, the lower end of the electrode body is provided with a groove which is penetrated transversely, the notch of the groove faces downwards, and a plurality of flushing outlets are distributed on the groove;

the groove width of the groove is gradually narrowed from bottom to top.

Preferably, the inner wall of the groove is arranged in an arc surface.

Preferably, the metal powder particle production apparatus further comprises a drive system including:

the electrode seat is arranged at the lower end of the driving head;

the feeding driving device is in driving connection with the driving head and is used for driving the electrode assembly to feed in the transverse direction and the up-down direction respectively; the method comprises the steps of,

and the rotary driving device is used for driving the workpiece to rotate around the transverse direction in the interelectrode discharge region.

Preferably, the flushing system further comprises a plurality of outer flushing pipes, wherein the outer flushing pipes are arranged around the periphery of the electrode assembly in a surrounding mode and used for guiding flushing liquid to be close to the interelectrode discharge area.

Preferably, the flushing system further comprises:

the flushing liquid sedimentation box is arranged below the interelectrode discharge area, and the upper end of the flushing liquid sedimentation box is provided with an opening and is used for separating flushing liquid and workpiece particles;

the flushing liquid circulation box is used for collecting flushing liquid;

a first drive pump for pumping the flushing liquid from the flushing liquid settling tank to the flushing liquid circulation tank; the method comprises the steps of,

and the second driving pump is used for sucking the flushing liquid from the flushing liquid circulation box to the inner flushing liquid pipe and the plurality of outer flushing liquid pipes.

Preferably, the flushing system further comprises:

one end of the first flushing pipe is communicated with the output port of the second driving pump; the method comprises the steps of,

the flow dividing device is arranged above the electrode assembly and is provided with a water inlet and a plurality of water outlets which are communicated with each other, wherein the water inlet is communicated with the other end of the first flushing pipe, the plurality of water outlets are respectively communicated with the inner flushing pipe and the outer flushing pipes, and the water inlet and the plurality of water outlets are respectively correspondingly provided with valves.

Preferably, the metal powder particle preparation device further comprises a filter plate, the filter plate covers the opening of the flushing and sedimentation tank, and a plurality of filter openings communicated with the flushing and sedimentation tank are formed in the filter plate so that flushing liquid and workpiece particles can flow into the flushing and sedimentation tank through the filter openings.

Preferably, the flushing liquid sedimentation tank is provided with a first side plate and a second side plate which are arranged oppositely along the transverse direction;

the flushing sedimentation tank further comprises:

the guide plate is arranged in the flushing and sedimentation box, one end of the guide plate is connected with the first side plate, and the other end of the guide plate is obliquely arranged in a downward inclined manner in a direction away from the first side plate;

the collecting grooves are arranged below the guide plate in a transversely adjacent mode, the notch is arranged upwards and used for collecting workpiece particles settled by the guide plate, and the groove depths of the collecting grooves are gradually lowered along the direction away from the second side plate; the method comprises the steps of,

and the drain hole is arranged on the first side plate and is arranged at intervals on the bottom wall of the flushing sedimentation tank.

According to the technical scheme provided by the invention, the electrode assembly and the workpiece are respectively connected with the positive electrode and the negative electrode of the power supply, and are driven to mutually approach to a valid distance range to form an interelectrode discharge region, so that the electrode assembly and the workpiece generate relative high-speed rotary motion to perform mechanical motion arc breaking on the workpiece, and then through arranging the cavity, the flushing liquid inlet and the flushing liquid outlet in the electrode assembly, flushing liquid can flow out towards the interelectrode discharge region to perform hydrodynamic arc breaking on the workpiece, so that arc discharge explosion erosion processing on the workpiece is realized under the combined action of the mechanical motion arc breaking and the hydrodynamic arc breaking, and the required workpiece particles are obtained. The metal powder particle preparation device has the advantages of stable arc discharge process, high quality and high efficiency of powder particle preparation, simple structure and low cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an apparatus for preparing metal powder particles according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structure of the electrode assembly of fig. 1;

FIG. 3 is a schematic view showing a part of the structure of the apparatus for preparing metal powder particles in FIG. 1;

FIG. 4 is a schematic cross-sectional view of the shunt device of FIG. 1;

fig. 5 is a schematic view of a part of the structure of the settling tank in fig. 1.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The present invention provides a metal powder particle manufacturing apparatus, and referring to fig. 1 to 5, an embodiment of a metal powder particle manufacturing apparatus is provided.

Referring to fig. 1 and 2, a metal powder particle manufacturing apparatus 100 provided by the present invention is disposed on a machine tool body 1, wherein the machine tool body 1 provides a basic frame and platform structure for supporting the normal installation of the metal powder particle manufacturing apparatus 100. In this embodiment, the metal powder particle preparation apparatus 100 includes an electrode assembly 2 and a flushing system 3, where the electrode assembly 2 has a cavity 211, and according to practical applications, the cavity 211 may be set to any desired shape and a suitable volume, and the cavity 211 is provided with a flushing inlet 211a and a flushing outlet 221a, so that the flushing liquid flows in from the flushing inlet 211a, flows through the cavity 211, and flows out toward the inter-electrode discharge area through the flushing outlet 221a, so that the flushing liquid can directly act on the inter-electrode discharge area. Under the combined action of mechanical motion arc breaking and hydrodynamic arc breaking, the inter-electrode discharge region generates arc discharge explosion with high energy density to erode and remove, so that the workpiece 200 is rapidly melted, gasified and thrown in the air, and spherical particles are formed under the contraction action of surface tension by cooling the flushing liquid, so that the required workpiece particles are obtained. The flushing system 3 includes an inner flushing pipe 37, where the inner flushing pipe 37 is communicated with the flushing inlet 211a, and is used for making the flushing fluid flow in from the flushing inlet 211a, and a sealing structure is further configured between the inner flushing pipe 37 and the flushing inlet 211a, so as to prevent the flushing fluid from leaking from the joint of the two under high-speed flowing.

In the technical scheme provided by the invention, the electrode assembly 2 and the workpiece 200 are respectively connected with the positive electrode and the negative electrode of a power supply, and are driven to be mutually close to a valid distance range to form an interelectrode discharge region, so that relative high-speed rotary motion is generated between the electrode assembly 2 and the workpiece 200 to perform mechanical motion arc breaking, and then through arranging the cavity 211, the flushing liquid inlet 211a and the flushing liquid outlet 221a in the electrode assembly 2, flushing liquid can flow out towards the interelectrode discharge region to perform fluid dynamic arc breaking on the workpiece 200, so that arc discharge explosion erosion processing on the workpiece 200 is realized under the combined action of the mechanical motion arc breaking and the fluid dynamic arc breaking, and required workpiece particles are obtained. The metal powder particle preparation device 100 has the advantages of stable arc discharge process, high quality and high efficiency of powder particle preparation, simple structure and low cost.

Further, in this embodiment, the electrode assembly 2 includes an electrode base 21 and an electrode body 22, wherein an upper end of the electrode base 21 has a mounting end for being mounted and connected with the driving system 4, the electrode base 21 is provided with the cavity 211, and a side wall of the electrode base 21 is provided with the flushing liquid inlet 211a; the electrode body 22 is mounted at the lower end of the electrode seat 21, the electrode body 22 is provided with a plurality of outflow channels 221 along the vertical direction, the upper ends of the outflow channels 221 are communicated with the cavity 211, the lower ends are correspondingly provided with the flushing liquid outlets 221a, so that the flushing liquid generates enough flow velocity under the action of a pump body and other devices, flows out of the cavity 211, passes through the outflow channels 221, and finally flows directly from the flushing liquid outlets 221a to the interelectrode discharge area to form arc discharge explosion and ablation. So set up, make the dashing liquid can directly act on interelectrode discharge area realizes the disconnected arc of hydrodynamic force and high-speed cooling function, and the circulation of dashing liquid does not influence the normal discharge effect of electrode body 22, has simple structure, advantage that the cooling effect is good. The electrode assembly 2 may further be provided with a sealing ring 23, where the sealing ring 23 is disposed between the electrode base 21 and the electrode body 22, and a plurality of through holes are formed corresponding to the plurality of outflow channels 221, so as to prevent the flushing liquid flowing in the electrode assembly 2 from flowing out from the joint between the electrode base 21 and the electrode body 22.

Since there is a certain loss in the arc discharge blast etching process, it is generally preferable to provide the electrode body 22 and the workpiece 200 of the same material in order to avoid doping impurities into the finally obtained workpiece particles.

In order to enlarge the acting area of the interelectrode discharge region and thereby improve the efficiency and stability of the arc discharge explosion removal process, in this embodiment, a groove extending transversely is formed at the lower end of the electrode body 22, the notch of the groove faces downward and is used for facing the workpiece 200, and a plurality of flushing outlets 221a are distributed on the groove, so that the interelectrode discharge region can be enlarged from a partial arc acting only on the workpiece 200 to a semicircular arc acting on the workpiece 200 without changing the overall size of the electrode body 22, thereby increasing the surface area of the workpiece 200 cut in unit time and effectively improving the efficiency of the arc discharge explosion removal process; further, the groove width of the groove is preferably set to be gradually narrowed from bottom to top, compared with the groove with a rectangular cross section, the concentration of arc discharge caused by edges and corners can be avoided, the arc discharge in the interelectrode discharge area is uniform and equivalent, and therefore the stability of arc discharge explosion etching processing is improved.

Further, in practical applications, the groove width of the groove is gradually narrowed from bottom to top, which may be embodied as an inclined arrangement gradually approaching the center of the groove from bottom to top, but since the workpiece 200 and the electrode assembly 2 are generally arranged to have a relative rotation motion so as to avoid an over-fire and a short circuit between the electrode assembly 2 and the workpiece 200, it is preferable that the inner wall of the groove is provided with a cambered surface, and is more suitable for the rotating workpiece 200, so as to ensure that fluid arc breaking and mechanical arc breaking can be better performed, thereby obtaining high quality workpiece particles.

Further, the metal powder particle manufacturing apparatus further includes a driving system 4, and the driving system 4 may be composed of a basic transmission assembly and a power assembly for driving only the electrode assembly 2 to move, or driving only the workpiece 200 to move, or driving both the electrode assembly 2 and the workpiece 200 to move at the same time, so that the electrode assembly 2 and the workpiece 200 are adjacent to each other to form a mechanical motion arc break. That is, the driving system 4 may be embodied in various forms, and for convenience of understanding, the transverse direction is hereinafter defined as the X-axis direction of the intrinsic coordinate system of the machine tool body 1 and the up-down direction is the Z-axis direction, with reference to the prior art. Referring to fig. 1 and 3, in the present embodiment, the driving system 4 includes a driving head 41, a feeding driving device 42 and a rotation driving device 43, where the mounting end of the electrode holder 21 is mounted at the lower end of the driving head 41, the feeding driving device 42 is in driving connection with the driving head 41, so as to drive the electrode assembly 2 to feed horizontally and vertically, and specifically, the feeding driving device 42 may mainly include a Z-axis servo motor, a Z-axis slider, a Z-axis guide rail, a Z-axis screw, an X-axis servo motor, an X-axis slider, an X-axis guide rail, and an X-axis screw, and specific mounting manners and implementation principles may refer to the prior art, which are not described herein in detail; the rotation driving device 43 is in driving connection with the workpiece 200 and is used for driving the workpiece 200 to rotate around the transverse direction in the inter-electrode discharge area, specifically, the rotation driving device 43 may mainly comprise a chuck, a tailstock and a driving motor in driving connection with the chuck, and similarly, the specific installation manner and implementation principle may refer to the prior art, and will not be described in detail herein. So arranged, in preparation before the arc discharge blast etching process, after the workpiece 200 is clamped, the Z-axis direction feed and the X-axis direction feed of the electrode assembly 2 can be adjusted by the feed driving device 42; in addition, during the arc discharge blast erosion process, the workpiece 200 is driven by the rotation driving device 43 to always rotate around a fixed axis at a constant speed, but the surface of the workpiece is lost along with the arc discharge blast erosion process, so that the distance between the lower end of the electrode body 22 and the workpiece 200 is gradually increased, and at this time, the electrode assembly 2 can be driven by the feeding driving device 42 to be fed within the effective distance range at a constant speed, so as to realize stable and efficient arc discharge blast erosion process.

In the second embodiment (not shown in the drawings), the driving system 4 may be further configured to only drive the workpiece 200 to move, where the movement of the workpiece 200 includes rotation about the X axis, feeding along the X axis, and feeding along the Z axis, and similarly, the rotation about the X axis may be achieved by driving the chuck by the motor, and the feeding along the X axis and the feeding along the Z axis may be achieved by integrally fixing the chuck and the motor to the slider and combining the Z axis servo motor, the Z axis guide rail, the Z axis screw, the X axis servo motor, the X axis guide rail, and the X axis screw. In a third embodiment (not shown in the drawings), the driving system 4 may be further configured to drive only the electrode assembly 2 to move, and similarly, the movement includes rotation about the X-axis, feeding in the X-axis direction, and feeding in the Z-axis direction, which is similar to the second embodiment described above, and will not be described in detail herein.

Further, in order to achieve a better hydrodynamic arc breaking effect, referring to fig. 1, in this embodiment, the flushing system 3 further includes a plurality of outer flushing pipes 38, where the plurality of outer flushing pipes 38 are disposed around the periphery of the electrode assembly 2, and are used for guiding the flushing liquid to approach the inter-electrode discharge area. Through the cooperation of the inner flushing pipe 37 and the plurality of outer flushing pipes 38, the workpiece particles thrown away from the inside and outside of the interelectrode discharge area can be better cooled and cooled to obtain the workpiece particles with small particle size, narrow particle size distribution, high sphericity, good fluidity and high apparent density, so that the preparation of the workpiece particles is more efficient.

Still further, in this embodiment, the flushing system 3 further includes a flushing sedimentation tank 31, a flushing circulation tank 32, a first driving pump 33 and a second driving pump 34, where the flushing sedimentation tank 31 is detachably disposed below the inter-electrode discharge area, the flushing sedimentation tank 31 has an inner cavity, and an upper end is disposed with an opening, and is configured to directly hold the workpiece particles obtained through fluid arc breaking and the flushing liquid, and separate the flushing liquid and the workpiece particles; the flushing circulation tank 32 is arranged in communication with the flushing sedimentation tank 31, for collecting flushing liquid, in particular, the communication between the flushing circulation tank 32 and the flushing sedimentation tank 31 can be directly performed through a pipeline, but preferably, a first driving pump 33 can be arranged between the two for pumping flushing liquid from the flushing sedimentation tank 31 to the flushing circulation tank 32 so as to increase the circulation power of the flushing liquid, so that the flushing liquid can circulate more quickly; the second driving pump 34 is configured to pump the flushing liquid from the flushing liquid circulation tank 32 to the inner flushing liquid pipe 37 and the plurality of outer flushing liquid pipes 38, so as to increase the flushing liquid speed, and enable the flushing liquid to flow into and out of the inter-electrode discharge area at a high speed, thereby realizing the functions of fluid power arc breaking and high-speed cooling.

In addition, in order to reduce the arrangement of various flushing pipes on the metal powder particle manufacturing apparatus 100 and simplify the structure of the metal powder particle manufacturing apparatus 100, referring to fig. 4, in this embodiment, the flushing system 3 further includes a first flushing pipe 35 and a flow dividing device 36, where the flow dividing device 36 is disposed above the electrode assembly 2 and has a water inlet and a plurality of water outlets which are disposed in communication with each other, and the water inlet and the plurality of water outlets are respectively provided with valves, that is, opening and closing of the water inlet and the plurality of water outlets can be independently controlled by, for example, the valves, wherein one end of the first flushing pipe 35 is disposed in communication with the output port of the second driving pump 34, the other end of the first flushing pipe is disposed in communication with the water inlet, and the plurality of water outlets are disposed in communication with the inner flushing pipe 37 and the plurality of outer flushing pipes 38, respectively. The valve opening and closing of the inner flushing pipe 37 and the valve opening and closing of the outer flushing pipe 38 can be controlled according to the requirement, and meanwhile, the outer flushing pipes 38 are preferably arranged on the periphery of the electrode assembly 2 in a surrounding mode, so that the opening quantity of the valves of the outer flushing pipes 38 can be set according to the actual situation, and the opening of the valves of the outer flushing pipes 38 at the required positions can be controlled, and the use of operators is facilitated.

Further, in this embodiment, the metal powder particle manufacturing apparatus 100 further includes a filter plate 311, where the filter plate 311 covers an opening of the flushing and settling tank 31, the filter plate 311 is provided with a plurality of filter openings 311a that are communicated with the flushing and settling tank 31, so that the flushing liquid and the workpiece particles flow into the flushing and settling tank 31 through the filter openings 311a, and it should be noted that, in order to collect the flushing liquid and the workpiece particles more quickly, the filter openings 311a may be, for example, provided as groove-shaped flow channels that are arranged at intervals in parallel, and by increasing a size of a through opening of the filter openings 311a, a rate of the flushing liquid and the workpiece particles entering the flushing and settling tank 31 in a unit time may be effectively increased; in addition, in order to simplify the overall structure, the filter plate 311 may be integrally provided with the machine tool body 1 or detachably provided to the machine tool body 1, and an upper end surface of the filter plate 311 may be used for mounting the work 200 or the metal powder particle preparation apparatus 100.

Referring to fig. 5, in the present embodiment, the liquid-flushing and sedimentation tank 31 has a tank structure with a first side plate 312 and a second side plate 313 disposed opposite to each other in a lateral direction; the liquid flushing and sedimentation tank 31 further comprises a guide plate 314, a plurality of collecting tanks 315 and drain holes 316, wherein the guide plate 314 is arranged in the liquid flushing and sedimentation tank 31, one end of the guide plate is connected with the first side plate 312, and the other end of the guide plate is arranged in a downward inclined extending manner along the direction away from the first side plate 312; the plurality of collecting tanks 315 are arranged below the guide plates 314 in a transversely adjacent manner, and the notch is arranged upwards and is used for collecting workpiece particles settled by the guide plates 314, wherein the groove depth of the plurality of collecting tanks 315 is gradually reduced towards a direction away from the second side plate 313, and the arrangement of the guide plates 314 is beneficial to prolonging the flow path of the workpiece particles driven by the flushing liquid, so that the workpiece particles can flow downwards along the inclined direction of the guide plates 314 and enter the plurality of collecting tanks 315. In addition, an overflow port 315a is arranged between every two adjacent collecting tanks 315 along the transverse direction, handles 315b are arranged at two sides of the overflow port 315a, the arrangement of the overflow port 315a is beneficial to enabling the flushing liquid to sequentially flow through the plurality of collecting tanks 315, more workpiece particles are left after multiple sedimentation, and the flushing liquid overflows; the handle 315b is arranged to facilitate the disassembly of each collecting tank 315, so as to facilitate the subsequent collection of the workpiece particles. Further, the drain hole 316 is formed in the first side plate 312 and spaced from the bottom wall of the flushing and settling tank 31, that is, the drain hole 316 is formed in the upper end of the first side plate 312 and below the deflector 314, which helps to fully separate the workpiece particles and the flushing liquid, and only enables the flushing liquid with higher purity on the upper layer to flow to the flushing liquid circulation tank 32 through the drain hole 316.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A metal powder particle preparation device, locates the lathe body, its characterized in that includes:

the flushing system comprises an inner flushing pipe, and the inner flushing pipe is communicated with the flushing inlet;

the electrode assembly includes:

the electrode body is arranged at the lower end of the electrode seat, a plurality of outflow channels are penetrated along the upper and lower directions of the electrode body, the upper ends of the outflow channels are communicated with the cavity, and the lower ends of the outflow channels are correspondingly provided with the flushing liquid outlets;

the metal powder particle production apparatus further includes a drive system including:

the electrode seat is arranged at the lower end of the driving head;

the rotary driving device is used for driving the workpiece to transversely rotate around the interelectrode discharge region;

the flushing system further comprises a plurality of outer flushing pipes, wherein the outer flushing pipes are arranged on the periphery of the electrode assembly in a surrounding mode and used for guiding flushing liquid to be close to the interelectrode discharge area.

2. The metal powder particle production apparatus of claim 1, wherein a groove extending transversely is formed in the lower end of the electrode body, the notch of the groove faces downwards, and a plurality of flushing outlets are distributed on the groove;

the groove width of the groove is gradually narrowed from bottom to top.

3. The apparatus for preparing metal powder particles as set forth in claim 2, wherein the inner wall of the recess is provided in a cambered surface.

4. The metal powder particle production apparatus of claim 1, wherein the flushing system further comprises:

the flushing liquid circulation box is used for collecting flushing liquid;

5. The metal powder particle production apparatus of claim 4, wherein the flushing system further comprises:

6. The apparatus for producing metal powder particles according to claim 4, further comprising a filter plate covering an opening of the flushing sedimentation tank, wherein the filter plate is provided with a plurality of filter openings communicating with the flushing sedimentation tank for allowing flushing and workpiece particles to flow into the flushing sedimentation tank through the filter openings.

7. The apparatus for producing metal powder particles according to claim 4, wherein the flushing sedimentation tank has a first side plate and a second side plate which are disposed opposite to each other in a lateral direction;

the flushing sedimentation tank further comprises: