CN210451271U - Processing device for assisting micro-electrolysis by ultrasonic and gas film shielding - Google Patents
Processing device for assisting micro-electrolysis by ultrasonic and gas film shielding Download PDFInfo
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- CN210451271U CN210451271U CN201920553193.1U CN201920553193U CN210451271U CN 210451271 U CN210451271 U CN 210451271U CN 201920553193 U CN201920553193 U CN 201920553193U CN 210451271 U CN210451271 U CN 210451271U
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- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 9
- 239000003792 electrolyte Substances 0.000 claims abstract description 62
- 238000003754 machining Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 230000004807 localization Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
A processing device for assisting micro electrolysis by ultrasonic and gas film shielding comprises an ultrasonic vibration device, a nozzle cap, an electrode chuck, an electrolyte tank and a workbench, wherein the nozzle is connected with the nozzle cap which is connected on a machine tool; the nozzle is internally provided with an electrolyte cavity and a gas cavity, the electrolyte cavity is provided with a liquid inlet connected with the electrolyte cavity, the gas cavity is also provided with a gas inlet connected with the gas cavity and is externally connected with an air compressor through a gas supply pipe, and the nozzle gas cavity is positioned below the electrolyte cavity; the electrode chuck is arranged in the nozzle and is contacted with the nozzle cap through the upper end part, and the lower end part is contacted with the inner cavity of the nozzle to realize fixation; the needle electrode is clamped by the electrode chuck, and the electrode penetrates through the cavity at the axis of the nozzle and extends out of the liquid outlet of the nozzle; the ultrasonic vibration device is vertically arranged on the workbench, the workpiece is fixedly connected with the amplitude transformer of the ultrasonic vibration device through threads, and the electrolyte tank is horizontally arranged on the workbench. The utility model provides high fine electrolytic machining's locality, stability, precision and efficiency.
Description
Technical Field
The utility model belongs to the field of electrolytic machining is assisted in the ultrasonic energy field, especially, relate to a processingequipment of supplementary fine electrolysis of supersound in coordination with gas film shielding.
Background
The microstructure can be processed on the surface of some parts to effectively improve the service performance of the parts, so that the microstructure is widely applied to the industrial fields of aviation, aerospace, automobiles, electronics, molds and the like. Micro electrochemical machining is just one representative technique of micro-structural machining.
The micro electrochemical machining is realized based on the principle of metal electrochemical anode dissolution. Micro electrochemical machining uses a tool electrode having a diameter of several tens to several hundreds of micrometers, and generally electrochemically machines a workpiece in a machining gap of several tens of micrometers. The micro electrochemical machining has the advantages of no loss of machining tools, no influence of the hardness and strength of machined materials on the etching speed, small machining deformation and the like, and has obvious advantages in the field of micro-structural machining, so that extensive research in academia and industry at home and abroad is caused. However, the problems of poor localization, stray corrosion during processing and the like also exist in the micro electrolytic processing; although the processing localization can be effectively improved by the ultrashort pulse current micro-electrochemical machining, the processing efficiency is low; therefore, people are more and more concerned about how to realize stable, efficient and high-precision machining of workpieces by utilizing a micro-electrochemical machining technology.
Disclosure of Invention
In order to overcome the localization nature that current fine electrolytic machining technique exists poor, the serious scheduling problem of stray corrosion, the utility model provides a processing apparatus of supplementary fine electrolysis of supersound cooperation gas film shielding has improved fine electrolytic machining's localization nature, stability, precision and efficiency.
The utility model provides a technical scheme that its technical problem adopted is:
a device for assisting micro electrolytic machining by ultrasonic and gas film shielding comprises an ultrasonic vibration device, a nozzle cap, an electrode chuck, an electrolyte tank and a workbench, wherein the nozzle is connected with the nozzle cap through threads; an electrolyte cavity and a gas cavity are arranged in the nozzle, a liquid inlet connected with the electrolyte cavity is formed in the electrolyte cavity, a gas inlet connected with the gas cavity is also formed in the gas cavity, the gas cavity is externally connected with an air compressor through an air supply pipe, the gas cavity of the nozzle is positioned below the electrolyte cavity, electrolyte flows out from a small hole at the lower end of the axis of the nozzle through the electrolyte cavity during machining, and gas is sprayed out from an annular gas outlet at the lower end of the nozzle through the gas cavity;
the electrode chuck is arranged in the nozzle and is in contact with the nozzle cap through the upper end part, and the lower end part is in contact with the inner cavity of the nozzle to realize fixation; the needle electrode is clamped by the electrode chuck, and the electrode penetrates through the cavity at the axis of the nozzle and extends out of the liquid outlet of the nozzle;
the ultrasonic vibration device is vertically arranged on the workbench, and a workpiece is fixedly connected to an amplitude transformer of the ultrasonic vibration device through threads; the vibration parameters such as amplitude and frequency of the ultrasonic vibration device can be adjusted through an ultrasonic power supply and a controller thereof, and the ultrasonic vibration device is fixed by connecting a flange thereof with the concave table of the workbench through bolts;
the electrolyte tank is horizontally placed on the workbench, a through hole is formed in the middle of the bottom of the electrolyte tank, the ultrasonic vibration device penetrates through the through hole, and a sealing ring is arranged at the connecting part of the electrolyte tank and the ultrasonic vibration device to prevent electrolyte from penetrating into the transducer part of the ultrasonic vibration device; two through holes are symmetrically formed in two sides of the bottom of the electrolyte tank, circular tube grooves extend outwards from each through hole, the two circular tube grooves penetrate through the two through holes in the workbench respectively, and during machining, electrolyte flows into the electrolyte circulation box below the workbench through the circular tube grooves of the electrolyte tank; the workpiece is positioned under the nozzle during processing and is connected with the positive electrode of the power supply through the ultrasonic vibration device, and the tool electrode is connected with the negative electrode of the power supply through the nozzle.
Furthermore, the workpiece is directly connected with the amplitude transformer of the ultrasonic vibration device through threaded connection, and the processing surface of the workpiece is parallel to the surface of the working table.
Still further, the ultrasonic vibration device is arranged below the nozzle and vertically fixed on the workbench, and the lower end part of the ultrasonic vibration device penetrates through the through hole of the workbench.
Still further, air inlet, inlet are all arranged horizontally, liquid outlet and the equal vertical distribution of instrument electrode, the gas outlet is given vent to anger for certain angle, and instrument electrode arranges with gas outlet, liquid outlet are coaxial.
Still further, the tool electrode is a tungsten material and has a needle shape with a tip portion having a diameter of less than 100 μm.
The beneficial effects of the utility model are that:
1. the utility model discloses combine together ultrasonic field and gas film shielding processing, make the gas film shielding process metal surface with the supplementary micro electrolytic machining technique of synergism cooperation of supersound, when cladding one deck high-pressure gas around the processing liquid beam promptly, the work piece receives the effect of ultrasonic vibration device again. Therefore, the limit effect of the gas film shielding on the injection range of the electrolyte beam is exerted, the gas volume fraction of the electrolyte beam is reduced by utilizing the effect of the ultrasonic field, and the defect that the material erosion speed is reduced due to the increase of the gas volume fraction in the electrolyte in the gas film shielding electrolytic processing is overcome. The ultrasonic assistance and the gas film shielding are cooperated to assist the micro electrolytic machining, so that the machining localization is improved, the stray corrosion phenomenon in the machining process is improved, the material erosion speed is increased, and the machining precision and the machining efficiency of the micro electrolytic machining within the micron scale range are improved.
2. The utility model discloses processing work piece size shape is calculated through finite element simulation analysis, and the lug connection is in on ultrasonic vibration device's the amplitude transformer, the installation of work piece, dismantlement are convenient, and have avoided the uncontrollable problem of vibration frequency, the range that the loading arouses on ultrasonic vibration device.
Drawings
Fig. 1 is a general assembly drawing of the device.
Fig. 2 is an enlarged view of the nozzle outlet.
FIG. 3 is a view showing the structure of an electrolytic bath.
Fig. 4 is a structure view of the ultrasonic vibration device in cooperation with a table.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-4, the processing device for assisting micro electrolysis by ultrasonic and gas film shielding comprises an ultrasonic vibration device 9, a nozzle 3, a nozzle cap 2, a tool electrode chuck 6, an electrolyte tank 7 and a workbench 8, wherein the nozzle 3 is connected with the nozzle cap 2 through threads, and the nozzle cap 2 is connected to a machine tool spindle 1 through threads; an electrolyte cavity 12 and a gas cavity 5 are arranged in the nozzle 3, a liquid inlet 13 connected with the electrolyte cavity 12 is arranged on the electrolyte cavity 12, a gas inlet 4 connected with the gas cavity 5 is also arranged on the gas cavity 5, the gas cavity is externally connected with an air compressor through a gas supply pipe, the nozzle gas cavity 5 is positioned below the electrolyte cavity 12, during processing, electrolyte flows out from a small hole 17 at the lower end of the axis of the nozzle 3 through the electrolyte cavity 12, and gas is sprayed out from an annular gas outlet 15 at the lower end of the nozzle 3 through the gas cavity 5;
the tool electrode clamp 6 is arranged inside the nozzle 3, the tool electrode clamp 6 is contacted with the nozzle cap 2 through the upper end part 14, and the lower end part 19 is contacted with the inner cavity of the nozzle to realize fixation; the needle-shaped tool electrode 16 is clamped by the tool electrode chuck 6, and the tool electrode 16 passes through a cavity 18 at the axle center of the nozzle 3 and extends out of a nozzle liquid outlet 17;
the ultrasonic vibration device 9 is vertically arranged on the workbench 8, vibration parameters such as amplitude and frequency of the ultrasonic vibration device 9 can be adjusted through an ultrasonic power supply and a controller thereof, and the ultrasonic vibration device 9 is fixed by bolt connection through a flange 23 and a concave platform 27 of the workbench;
the electrolyte tank 7 is flatly placed on the workbench 8, a through hole 21 is formed in the middle of the bottom of the electrolyte tank 7, the ultrasonic vibration device 9 penetrates through the through hole 21, and a sealing ring 10 is arranged at the connecting part of the electrolyte tank 7 and the ultrasonic vibration device 9 to prevent electrolyte from penetrating into the lower end part of the ultrasonic vibration device 9. Two circular tube grooves 20 extending outwards are symmetrically arranged on two sides of the bottom of the electrolyte tank 7, the two circular tube grooves 20 respectively penetrate through two through holes 24 on the workbench, and during machining, electrolyte flows into the electrolyte circulation box below the workbench 8 through the circular tube grooves 20 of the electrolyte tank. The workpiece 11 is positioned below the nozzle 3 during processing and is connected with the positive pole of a power supply through the ultrasonic vibration device 9, and the tool electrode 16 is connected with the negative pole of the power supply through the nozzle 3.
Further, the workpiece 11 is connected to the ultrasonic vibration device horn 22 by a screw thread, and the processing surface of the workpiece is parallel to the surface of the table.
Still further, the ultrasonic vibration device 9 is vertically fixed on the worktable 8 below the nozzle 3, and the lower end part of the ultrasonic vibration device 9 passes through the worktable through hole 26.
Still further, the air inlet 4 and the liquid inlet 13 are horizontally arranged, the liquid outlet 17 and the tool electrode 16 are vertically distributed, the air outlet 15 is used for exhausting air at a certain angle, and the tool electrode 16 is coaxially arranged with the air outlet 15 and the liquid outlet 17.
Still further, the tool electrode 16 is a tungsten material and has a needle-like shape with a tip portion having a diameter of less than 100 μm.
In the processing method implemented by the processing device for assisting micro electrolysis by ultrasonic and gas film shielding in the embodiment, a workpiece 11 is tightly connected to an ultrasonic amplitude transformer 22 of an ultrasonic vibration device through threaded connection, the workpiece is connected with the positive electrode of a power supply through the ultrasonic vibration device 9, a needle-shaped tool electrode 16 is clamped and fixed in a nozzle 3 by a tool electrode chuck 6, the lower end of the tool electrode 16 extends out of a liquid outlet 17 of the nozzle 3, and the tool electrode 16 is connected with the negative electrode of the power supply through the nozzle 3; high-speed electrolyte enters an electrolyte cavity 12 of the nozzle 3 through a liquid inlet 13, and then is coated with a tool electrode 16 through a liquid outlet 17 at the lower end of the nozzle 3 to be sprayed at high speed to participate in electrochemical reaction between the tool electrode and a workpiece; meanwhile, high-pressure gas enters the gas cavity 5 of the nozzle 3 through the gas inlet 4 and is sprayed out through the annular gas outlet 15 around the liquid outlet 17 at the lower end of the nozzle 3, and the gas is coated around the electrolyte beam to form a layer of gas film when sprayed out, so that the diameter of the electrolyte beam is restricted; meanwhile, under the action of the ultrasonic vibration device 9, the workpiece 11 generates vibration with certain frequency and amplitude, along with the impact of high-speed electrolyte, the workpiece can generate micro-deformation, so that the material is removed more uniformly, meanwhile, the pressure of a processing area is increased under the action of the ultrasonic, so that gas outside the electrolyte beam cannot enter the electrolyte beam, the volume fraction of the gas in the electrolyte beam is reduced, and the corrosion removal speed of the material is increased. When the high-speed electrolyte coated high-pressure gas film is sprayed onto the workpiece under the ultrasonic action, stable and efficient processing is realized, and the required microstructure is obtained.
Claims (5)
1. The processing device is characterized by comprising an ultrasonic vibration device, a nozzle cap, a tool electrode chuck, an electrolyte tank and a workbench, wherein the nozzle is connected with the nozzle cap through threads; an electrolyte cavity and a gas cavity are arranged in the nozzle, a liquid inlet connected with the electrolyte cavity is formed in the electrolyte cavity, a gas inlet connected with the gas cavity is also formed in the gas cavity, the gas cavity is externally connected with an air compressor through an air supply pipe, the gas cavity of the nozzle is positioned below the electrolyte cavity, electrolyte flows out from a small hole at the lower end of the axis of the nozzle through the electrolyte cavity during machining, and gas is sprayed out from an annular gas outlet at the lower end of the nozzle through the gas cavity;
the tool electrode chuck is arranged in the nozzle and is in contact with the nozzle cap through the upper end part, and the lower end part is in contact with the inner cavity of the nozzle to realize fixation; the needle-shaped tool electrode is clamped by the tool electrode chuck, and the tool electrode penetrates through the cavity at the axis of the nozzle and extends out of the liquid outlet of the nozzle;
the ultrasonic vibration device is vertically arranged on the workbench, and a workpiece is fixedly connected to an amplitude transformer of the ultrasonic vibration device through threads; the vibration parameters such as amplitude and frequency of the ultrasonic vibration device can be adjusted through an ultrasonic power supply and a controller thereof, and the ultrasonic vibration device is fixed by connecting a flange thereof with the concave table of the workbench through bolts;
electrolyte tank keep flat on the workstation, electrolyte tank bottom mid portion is equipped with the through-hole, and ultrasonic vibration device passes from the through-hole, the electrolyte tank with ultrasonic vibration device connecting portion are equipped with the sealing ring, prevent that electrolyte from permeating ultrasonic vibration device transducer part, electrolyte tank bottom bilateral symmetry is equipped with two through-holes, and two through-holes are outside to extend has the pipe groove, and two pipe grooves pass respectively two through-holes on the workstation add the pipe groove of electrolyte tank and flow into in the electrolyte circulation case of workstation below, used work piece adds man-hour and is located the nozzle below just links to each other with the power positive pole through ultrasonic vibration device, and used tool electrode passes through the nozzle and links to each other with the power negative pole.
2. The apparatus for processing micro-electrolysis assisted by ultrasonic and gas film shielding as claimed in claim 1, wherein the workpiece is directly connected with the amplitude transformer of the ultrasonic vibration device by screw connection, and the processing surface of the workpiece is parallel to the working table surface.
3. The apparatus for processing fine electrolysis assisted by ultrasonic and gas film shielding according to claim 1 or 2, wherein the ultrasonic vibration device is vertically fixed on the worktable below the nozzle, and the lower end part of the ultrasonic vibration device passes through the through hole of the worktable.
4. The apparatus as claimed in claim 1 or 2, wherein the gas inlet and the liquid inlet are horizontally disposed, the liquid outlet and the tool electrode are vertically disposed, the gas outlet is arranged at an angle, and the tool electrode is coaxially disposed with the gas outlet and the liquid outlet.
5. The apparatus as claimed in claim 1 or 2, wherein the tool electrode is made of tungsten and has a needle shape, and the diameter of the tip part is less than 100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920553193.1U CN210451271U (en) | 2019-04-23 | 2019-04-23 | Processing device for assisting micro-electrolysis by ultrasonic and gas film shielding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920553193.1U CN210451271U (en) | 2019-04-23 | 2019-04-23 | Processing device for assisting micro-electrolysis by ultrasonic and gas film shielding |
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| CN210451271U true CN210451271U (en) | 2020-05-05 |
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| CN201920553193.1U Active CN210451271U (en) | 2019-04-23 | 2019-04-23 | Processing device for assisting micro-electrolysis by ultrasonic and gas film shielding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076403A (en) * | 2019-04-23 | 2019-08-02 | 浙江工业大学 | Supersonic synergic air film shields the processing method and device of assist electrolysis |
| CN112518057A (en) * | 2021-02-08 | 2021-03-19 | 四川大学 | Ultrasonic-assisted jet flow electrolytic machining device |
| CN116038047A (en) * | 2023-01-07 | 2023-05-02 | 中国航空制造技术研究院 | Machining tool and method for machining small holes through electro-hydraulic beam |
-
2019
- 2019-04-23 CN CN201920553193.1U patent/CN210451271U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076403A (en) * | 2019-04-23 | 2019-08-02 | 浙江工业大学 | Supersonic synergic air film shields the processing method and device of assist electrolysis |
| CN112518057A (en) * | 2021-02-08 | 2021-03-19 | 四川大学 | Ultrasonic-assisted jet flow electrolytic machining device |
| CN112518057B (en) * | 2021-02-08 | 2021-05-14 | 四川大学 | Ultrasonic-assisted jet flow electrolytic machining device |
| CN116038047A (en) * | 2023-01-07 | 2023-05-02 | 中国航空制造技术研究院 | Machining tool and method for machining small holes through electro-hydraulic beam |
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