CN106825805B - Demountable combined-type tool cathode and its electrolytic mill milling method - Google Patents
Demountable combined-type tool cathode and its electrolytic mill milling method Download PDFInfo
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- CN106825805B CN106825805B CN201710120203.8A CN201710120203A CN106825805B CN 106825805 B CN106825805 B CN 106825805B CN 201710120203 A CN201710120203 A CN 201710120203A CN 106825805 B CN106825805 B CN 106825805B
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- bistrique
- knife bar
- tool cathode
- tool
- cathode
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- 238000003801 milling Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 239000006061 abrasive grain Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 12
- 239000003792 electrolyte Substances 0.000 claims description 7
- 238000007514 turning Methods 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000005868 electrolysis reaction Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910000601 superalloy Inorganic materials 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H5/00—Combined machining
- B23H5/06—Electrochemical machining combined with mechanical working, e.g. grinding or honing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H5/00—Combined machining
- B23H5/10—Electrodes specially adapted therefor or their manufacture
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The present invention relates to a kind of Demountable combined-type tool cathode and its electrolytic mill milling methods, belong to electrolysis milling Compound Machining field.The collapsible tool cathode of the present invention, including bistrique, sealing ring and knife bar.Wherein, the bottom side of the wall of bistrique and bottom surface are provided with fluid hole and are electroplate with abrasive grain layer, and the hexagon flange lower face of bistrique is coated with insulating layer, and when installation, bistrique and knife bar are connected through a screw thread, and sealing ring is embedded in knife bar rabbet groove.Using tool cathode proposed by the present invention, first " drilling formula " can be carried out in workpiece surface any place and be machined to required depth, then carried out " milling type " and process required structure.The present invention can significantly reduce the cost of charp tool of electrolytic mill Milling Machining, and extend the application range of the technology.
Description
Technical field
The present invention relates to a kind of Demountable combined-type tool cathode and its electrolytic mill milling methods, and it is multiple to belong to electrochemical grinding
Close manufacture field.
Background technology
The metal materials such as nickel base superalloy, titanium alloy have been widely used for the industry such as aerospace, ship, oil
In.By taking aviation as an example, the usage amount of nickel base superalloy has accounted for the 57% of PW4000 engine gross masses, titanium
The usage amount of alloy has accounted for the 41% of Fourth Generation Fighters F-22 gross masses.However, since these materials have high temperature strong
The features such as degree is high, thermal coefficient is low so that cutting force is big in cutting process, cutting temperature is high, tool wear seriously with
And processing hardening is notable.Simultaneously as the structure design characteristic of space shuttle parts, a large amount of material is needed from monoblock blank
Middle removal, this also results in higher machining cost.Therefore, low processing efficiency and quality cannot be satisfied ever-increasing
Process requirements, this brings lot of challenges to the development of modern manufacturing industry.
Electrochemical grinding is a kind of mutually compound by the effect of electrolysis and mechanical grinding and realizes the processing method that material removes.
Traditional electrochemical grinding processes generally use conduction grinding wheel as tool cathode, and sprays electricity to machining area by external nozzle
Solve liquid.Under electrolysis, workpiece surface metal occurs to dissolve and generates softer sull, the grinding wheel rotated immediately
Abrasive grain strikes off, and exposes new metal surface and continue to be electrolysed, repeatedly, until reaching certain dimensional accuracy and surface
Roughness.In whole process, most of metal material removes in the form of an ion, therefore the loss of grinding tool is smaller,
It is very suitable for the metal material of difficult processing cutting.However, being limited by grinding wheel structure and feed liquid way, traditional electrochemical grinding
Processing flexibility and less efficient, this is unfavorable for the popularization of the technical advantage.
To improve this problem, electrolytic mill Milling Machining is suggested, i.e., using rodlike bistrique as tool cathode, with similar number
The generation line of profile is collectively formed by the rotary motion of bistrique electrode and the feed motion of workpiece for the mode of control milling, by tangent
The method that processing is formed in method.It is processed compared to traditional electrochemical grinding, the introducing of numerical control milling mode, which significantly improves, to be added
The flexibility of work is, it can be achieved that type face, cavity, thin-walled and the isostructural processing of boss.Initially, electrolytic mill Milling Machining still uses external
The mode of nozzle provides electrolyte to machining area.However, this feed liquid way is easy to cause electrolyte major part from workpiece table
Surface current loses, and when processing cutting-in is larger, the processing product in pole clearance is difficult to be taken away in time, as a result limits material removal
The raising of rate.Therefore, interior liquid-spraying type electrolytic mill Milling Machining by it is further proposed that, electrolyte can be directly injected to by bistrique endoporus
It processes in gap, and takes away processing product in time.As a result, the material thickness that single feed is removed is significantly improved, electrolysis
The processing efficiency of milling is further improved.
Currently, the tool cathode that interior liquid-spraying type electrolytic mill Milling Machining uses is mostly integral type, that is, needed first in base when preparing
A blind hole is processed at the top of body, then several fluid holes are processed in base side walls, finally in matrix machining area electroplating gold
Hard rock abrasive grain.Since tool cathode needs to lead to the aspect ratio of institute's processing blind hole with certain length in order to fixed and positioned
It is generally large, often labor intensive during fabrication.For example, when processing blind hole, the chip of generation must timely use air gun
Otherwise blowout is easy feed and is obstructed or even causes tool damage.In addition, in actual production, often there is the system of many structural members
It makes and needs to proceed by from workpiece surface, but for electrolytic mill Milling Machining, since fluid hole is usually only designed in work
Have cathode side wall, cause tool cathode also can only since the side-walls of workpiece material removal, limit the application of the technology
Range.As a result, these problems seriously constrain the further development and popularization of electrolytic mill Milling Machining technology.
Invention content
The invention reside in view of the above-mentioned problems, propose that a kind of low manufacture cost, dismounting collapsible tool easy for installation are cloudy
Pole and its electrolytic mill milling method, extend the application range of the technology.
A kind of Demountable combined-type tool cathode, it is characterised in that：Including bistrique, sealing ring and knife bar；The bistrique is
Equipped with central blind hole, the cylindrical structure of lower end closed upper end opening；The bistrique bottom side of the wall outer surface and bottom end face are electroplated
There is abrasive grain layer, height of the abrasive grain layer on bistrique side wall is equal with required working depth, and lower end outer surface and bottom end face are also
It is provided with several fluid holes communicated with central blind hole；There is mounting flange, the lower face of mounting flange to apply in outside in the middle part of the bistrique
It is covered with insulating materials；The bistrique upper end side wall is equipped with positioning external screw thread；The knife bar is hollow cylindrical structure, knife bar inside
It is disposed with rabbet groove, threaded hole and through-hole from bottom to top；The sealing ring is located in the rabbet groove of knife bar, and the bistrique is logical
External screw thread is crossed to be installed in the threaded hole of the knife bar.
The Demountable combined-type tool cathode, it is characterised in that：The diameter of the through-hole of the knife bar and the bistrique
Central blind hole diameter it is equal;The seam allowance groove depth of height of the bistrique more than the upper surface of mounting flange and the knife bar
The sum of degree and screw thread hole depth are equal.
The Demountable combined-type tool cathode, it is characterised in that：The composition material of the knife bar is stainless steel, described
The basis material of bistrique is common steel.
The electrolytic mill milling method of the Demountable combined-type tool cathode, it is characterised in that including following procedure：
Vertical clamping on spindle head of lathe and connects working power cathode to knife bar in an axial direction, and sealing ring is positioned over to the mounting flange of bistrique
On end face, which is clamped by turning tool to drive bistrique to rotate into knife bar until clamping；Clamping workpiece is existed
On platen and working power anode is connect, is completed to knife, positioning by the kinetic control system of lathe；When processing, tool
Cathode is sprayed with main shaft high speed rotation, electrolyte from the fluid hole of bistrique simultaneously, and tool cathode is first worked into institute along Z axis negative sense
Depth is needed, then tool cathode Z-direction is motionless, and workpiece starts to feed with certain path along X/Y plane, you can needed for processing
Structure；
When processing needs tool changing, first pass through the kinetic control system withdrawing of lathe, reuse turning tool dismantle it is old
Bistrique simultaneously installs new bistrique, then to knife, positioning, can continue to start to add.
The present invention has the following advantages：
1, Demountable combined-type tool cathode provided by the invention has split structure, and knife bar and bistrique, which can separate, to be added
Work only needs processing blind hole, therefore cloudy with conventional integral tool since knife bar is hollow cylindrical structure on bistrique
Pole is compared, and the aspect ratio of required processing blind hole is obviously reduced, meanwhile, after old bistrique is with giving up, only need to change new bistrique i.e.
Can, since knife bar uses corrosion resistant stainless steel material, knife bar is reusable, these features significantly reduce work
Has the manufacturing cost of cathode.
2, the present invention carries out insulation processing by the hexagon flange lower face to bistrique, effectively improves the surface to work
The dispersion corrosion on the non-processing surface of part acts on so that electrolytic mill Milling Machining has better locality.
3, the present invention is embedded in sealing ring by the rabbet groove in knife bar, and the collapsible tool cathode after installation is made to have more
Good leakproofness, can effectively prevent solution leakage in process.
4, Demountable combined-type tool cathode provided by the invention is equipped with several fluid holes in side wall and bottom surface, therefore can
First " drilling formula " is machined to certain depth since workpiece surface any place, then carries out " milling type " and process plane, thin-walled
With the structures such as groove, break the limitation for being only capable of being processed since workpiece side-walls, extends the processing of electrolysis milling technology
Method is conducive to further genralrlization and the application of the technology.
Description of the drawings
The Standard schematic diagram of Fig. 1 Demountable combined-type tool cathodes；
The schematic diagram of Fig. 2 bistrique matrixes；
The schematic diagram of Fig. 3 knife bars；
Fig. 4 carries out " drilling formula " machining sketch chart using collapsible tool cathode in Fig. 1 in workpiece surface；
Fig. 5 carries out " milling type " machining sketch chart using collapsible tool cathode in Fig. 1 in inside workpiece；
Figure label is entitled：1, bistrique, 2, sealing ring, 3 knife bars, 4, fluid hole, 5, insulating layer, 6, abrasive grain layer, 7, six
Angular flange, 8, positioning external screw thread, 9, central blind hole, 10, rabbet groove, 11, threaded hole, 12, through-hole, 13, workpiece, 14, work
Power supply, 15, electrolyte supply direction, 16, tool cathode direction of rotation, 17, tool cathode direction of feed, 18, workpiece feeding side
To.
Specific implementation mode
With reference to specific attached drawing, the present invention is described in further detail.
As shown in Fig. 1 ~ 3, a kind of Demountable combined-type tool cathode, including bistrique 1, sealing ring 2 and knife bar 3.The mill
Head is to be provided with and its central blind hole 9 with the columnar structured of hexagon flange 7, the bottom side of the wall of the bistrique 1 and bottom surface
The fluid hole 4 communicated, and it is electroplate with abrasive grain layer 6, the upper end side wall of the bistrique 1 is provided with positioning external screw thread 8, the bistrique 1
The lower face of hexagon flange 7 is coated with insulating layer 5, and the knife bar 3 is hollow cylindrical structure, and inside successively opens seam allowance
Slot 10, threaded hole 11, through-hole 12, the material of the knife bar 3 are the stainless steel material of anti-electrolytic corrosion, the bistrique 1 and institute
It states the installation of knife bar 3 and dismounting is connected through a screw thread progress, the sealing ring 2 is embedded in stopping for the knife bar 3 after mounting
In mouth slot 10.
As shown in Fig. 4 ~ 5, electrolytic mill Milling Machining is carried out using the collapsible tool cathode, method include mainly with
Lower step：
Step 1, by knife bar 3, for vertical clamping on spindle head of lathe, sealing ring 2 is positioned over the hexagon of bistrique 1 in an axial direction
On 7 end face of flange, hexagon flange 7 is clamped by turning tool and is rotated, to drive bistrique 1 to enter handle of a knife 3 until clamping, sealing
Circle 2 is embedded into the rabbet groove 10 of handle of a knife 3；
Step 2, the cathode that collapsible tool cathode is connect to working power 14, workpiece 13 connect the anode of working power 14, lead to
The kinetic control system for crossing lathe is completed to knife, positioning, between keeping the bottom end face of bistrique 1 and 13 upper surface of workpiece to be processed
Primary clearance be 0.3mm；
When step 3, processing, the collapsible tool cathode is along 16 high speed rotation of direction, and electrolyte is along direction 15 from handle of a knife 3
Through-hole 12 enters, and is sprayed from the fluid hole 4 of bistrique 1, and tool cathode is first processed along direction 17 since 13 upper surface of workpiece, until
Reach the working depth of setting, then workpiece 13 is fed along direction 18, is stopped until processing required groove；
Step 4, withdrawing are clamped hexagon flange 7 by turning tool and dismantle with useless bistrique 1, the bistrique 1 more renewed,
Continue since step 1, until processing request needed for completing.
The present invention can effectively reduce the cutter making cost of electrolytic mill Milling Machining and expand the application range of the technology, still
Above description can not be interpreted as the limitation to patent of the present invention.It should be noted that in the premise for not departing from present inventive concept
Under, several improvement can also be made, these should all fall into the protection of patent of the present invention.
Claims (4)
1. a kind of Demountable combined-type tool cathode, it is characterised in that：
Including bistrique（1）, sealing ring（2）And knife bar（3）；
The bistrique（1）To be equipped with central blind hole, the cylindrical structure of lower end closed upper end opening；The bistrique（1）Outside bottom side of the wall
Surface and bottom end face are plated with abrasive grain layer, and height of the abrasive grain layer on bistrique side wall is equal with required working depth, under
End outer surface and bottom end face are also provided with several fluid holes communicated with central blind hole（4）；The bistrique（1）There is peace on the outside of middle part
Flange is filled, the lower face of mounting flange is coated with insulating materials；The bistrique（1）Upper end side wall is equipped with positioning external screw thread（8）；
The knife bar（3）For hollow cylindrical structure, knife bar（3）Inside is disposed with rabbet groove from bottom to top（10）, spiral shell
Pit（11）And through-hole（12）；
The sealing ring（2）Positioned at knife bar（3）Rabbet groove（10）In, the bistrique（1）Pass through external screw thread（8）It is installed on described
Knife bar（3）Threaded hole（11）In.
2. Demountable combined-type tool cathode according to claim 1, it is characterised in that：
The knife bar（3）Through-hole（12）Diameter and the bistrique（1）Central blind hole diameter it is equal;
The bistrique（1）Height more than the upper surface of mounting flange and the knife bar（3）Rabbet groove（10）Depth and spiral shell
Pit（11）The sum of depth is equal.
3. Demountable combined-type tool cathode according to claim 1, it is characterised in that：The knife bar（3）Group become a useful person
Material is stainless steel, the bistrique（1）Basis material be common steel.
4. the electrolytic mill milling method of Demountable combined-type tool cathode according to claim 1, it is characterised in that packet
Include following procedure：
Knife bar（3）Vertical clamping on spindle head of lathe and connects working power cathode in an axial direction, by sealing ring（2）It is positioned over bistrique
Mounting flange end face on, which is clamped to drive bistrique by turning tool（1）Rotate into knife bar（3）Until folder
Tightly；
Clamping workpiece on platen and is connect into working power anode, by the kinetic control system of lathe complete to knife,
Positioning；
When processing, tool cathode is with main shaft high speed rotation, and electrolyte is from bistrique（1）Fluid hole（4）In spray simultaneously, tool is cloudy
It first extremely is worked into required depth along Z axis negative sense, then tool cathode Z-direction is motionless, and workpiece starts along X/Y plane with certain road
Diameter is fed, you can processes required structure；
When processing needs tool changing, the kinetic control system withdrawing of lathe is first passed through, turning tool is reused and dismantles old bistrique
And new bistrique is installed, then to knife, positioning, can continue to start to process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710120203.8A CN106825805B (en) | 2017-03-02 | 2017-03-02 | Demountable combined-type tool cathode and its electrolytic mill milling method |
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| CN201710120203.8A CN106825805B (en) | 2017-03-02 | 2017-03-02 | Demountable combined-type tool cathode and its electrolytic mill milling method |
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| CN106825805A CN106825805A (en) | 2017-06-13 |
| CN106825805B true CN106825805B (en) | 2018-07-17 |
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| CN108127200A (en) * | 2017-11-16 | 2018-06-08 | 南京航空航天大学 | Porous metal material module tubes electrolysis sprays Milling Process tool and method |
| CN108080755B (en) * | 2017-11-28 | 2019-06-04 | 南京航空航天大学 | Improve the tool cathode and method of electrolysis milling processing bottom surface planarization |
| CN107931759B (en) * | 2017-12-01 | 2019-09-24 | 广东工业大学 | A kind of internal combustion catholyte milling device |
| CN108188511B (en) * | 2018-01-02 | 2020-08-14 | 南京航空航天大学 | Electrolytic milling and grinding efficient rough and finish machining integrated machining method |
| CN108581100B (en) * | 2018-05-04 | 2019-08-23 | 山东大学 | Inner passage ultrasonic vibration assists internal combustion electrochemical grinding system and method |
| CN108620699B (en) * | 2018-05-10 | 2019-11-19 | 上海交通大学 | Anti- short-circuit porous high-efficiency fliud flushing electrode for arc discharge processing |
| CN110014294B (en) * | 2019-05-10 | 2021-06-25 | 山东大学 | Electrolytic drilling and grinding integrated processing device and system for group-hole tube electrodes |
| CN110508885A (en) * | 2019-08-29 | 2019-11-29 | 安徽理工大学 | It is a kind of to be vortexed with the discharge of rush erosion object, counteracting, go to remain the pipe electrode and production method of peak, self correction function |
| CN111215711A (en) * | 2019-12-06 | 2020-06-02 | 常州工学院 | Cathode for electrolytic machining |
| CN111715952B (en) * | 2020-06-12 | 2022-06-24 | 西安工业大学 | Rotary tool electrode for large length-diameter ratio special-shaped hole electric melting explosion machining |
| CN111992824A (en) * | 2020-08-21 | 2020-11-27 | 扬州大学 | Thin-wall case surface shallow cavity structure electrolytic machining device and electrolytic machining method thereof |
| CN113510324B (en) * | 2021-07-09 | 2022-11-08 | 西安工业大学 | Electrode for deep hole machining of electric melting explosion |
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| JPH0463628A (en) * | 1990-07-04 | 1992-02-28 | Uta Seimitsu Kogyo:Yugen | Electrode jig for electropolishing |
| JP2008264929A (en) * | 2007-04-20 | 2008-11-06 | Tokyo Stainless Kenma Kogyo Kk | Electrolytic polishing device |
| CN104551277A (en) * | 2015-01-08 | 2015-04-29 | 安徽工业大学 | Wire saw winding tool electrode for electrochemical-mechanical combined processing |
| CN105215488B (en) * | 2015-10-15 | 2018-06-05 | 南京航空航天大学 | It is electrolysed milling Compound Machining cathode grinding head device |
| CN105921834B (en) * | 2016-06-06 | 2017-12-22 | 南京航空航天大学 | Electrolytic mill Milling Machining tool cathode and method |
| CN106077855B (en) * | 2016-07-11 | 2017-12-29 | 上海交通大学 | The rotation electrode of liquid high speed arc spraying electro-discharge machining in orientation |
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