CN108526624B - A kind of machine tool rotary unit and the high-accuracy rotation of casing part print electrolytic machine tool - Google Patents
A kind of machine tool rotary unit and the high-accuracy rotation of casing part print electrolytic machine tool Download PDFInfo
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- CN108526624B CN108526624B CN201810339512.9A CN201810339512A CN108526624B CN 108526624 B CN108526624 B CN 108526624B CN 201810339512 A CN201810339512 A CN 201810339512A CN 108526624 B CN108526624 B CN 108526624B
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- 238000001816 cooling Methods 0.000 claims abstract description 48
- 238000007514 turning Methods 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 239000003792 electrolyte Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 16
- 230000033001 locomotion Effects 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000003755 preservative agent Substances 0.000 claims description 3
- 230000002335 preservative effect Effects 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 16
- 238000003754 machining Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000020169 heat generation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 241000237509 Patinopecten sp. Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- 238000010129 solution processing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- 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
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
-
- 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
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a kind of machine tool rotary units and the high-accuracy rotation of casing part to print electrolytic machine tool, machine tool rotary unit includes rotary conducting ring, mandrel, hollow spindle, torque motor and spindle drum, rotary conducting ring stator is connected with spindle drum, conductive rotor is connected with mandrel, mandrel is covered by insulating supporting to be fixedly connected with hollow spindle insulation, hollow spindle is responsible for clamping workpiece, and mandrel is responsible for electrode and draws electricity；Torque motor stator is connected by axle sleeve with spindle drum, and rotor is direct-connected with hollow spindle, and design has cooling duct in turning unit, which can also make the liquid feeding channel of Electrolyzed Processing, implementation tool cathode internal feed flow.Stress is responsible for compared with the design for drawing electricity with the kind of drive and main shaft that main shaft is connected again by servomotor, gear reducer with existing electrolytic machine tool, the machine tool drive precision is high, allow processing electric current big, the advantage of Electrolyzed Processing highly-efficient processing is given full play to, the application range of rotation print Electrolyzed Processing is expanded.
Description
Technical field
The present invention relates to technical field of electrolysis processing, high-accuracy more particularly to a kind of machine tool rotary unit and casing part
Rotation print electrolytic machine tool.
Background technique
Casing is the critical component of aero-engine, carries protection engine core internal structure, mentions for fuel combustion
The effect of support is provided for place and for peripheral components, pipeline.Engine upper casing class part is numerous, including inlet casing, wind
Fan casing, combustion box, Middle casing, turbine casing, outer culvert casing etc..Casing size is big, mostly Thin-wall Revolving Part,
Surface have complex outline boss structure, in order to meet high temperature, high pressure operation requirements, the material used mostly for titanium alloy,
The difficult-to-machine materials such as high temperature alloy.
Casing processing at present is based on traditional numeric-control Milling Process, but this method has following deficiency: (1) casing material
Difficult processing characteristics keep cutter consumption larger, processing cost is high；(2) casing part has thin-walled characteristic, in milling process
Cutting force keeps part deformation serious, and qualification rate is low；(3) for large complicated profile casing, material removal amount is big, numerical control processing week
Phase is long, and equipment occupancy is big.
The drawbacks of in order to overcome traditional Milling Process casing part to bring, domestic and foreign scholars propose casing part Electrolyzed Processing
Method.Electrolyzed Processing is to remove material based on the principle of electrochemical metal anodic solution to process the part met the requirements.Cause
This Electrolyzed Processing is not limited by material hardness, is able to achieve the materials such as titanium alloy, the high temperature alloy of processing equipment poor processability
Highly-efficient processing, and cutting force is not present in process, theoretically there is no deformations for part, especially suitable for thin-wall complicated type face
The forming of part.Such as Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City is in patent " Electrolyzed Processing complexity machine
The method in casket type face " (application number: proposes the Electrolyzed Processing that piecemeal, substep are carried out to casing outer mold surface in 200910248600.9)
Method, this method are suitable for the processing of surface boss profile single component, have the casing of multiple and different boss profiles in processing
When part, cathode quantity can be brought more, the cumbersome drawback of technical process.Nanjing Aero-Space University is in patent " aero-engine
It proposes to come using rigid rotator structure tool cathode in Thin-Wall Outer Casing electrochemical machining method " (application number 201410547093.X)
The electrochemical machining method of casing surface complexity boss profile is processed, this method (also referred to as rotation print Electrolyzed Processing) only uses a table
There is the revolving body cathode of groove structure corresponding with workpiece boss chamfered shape in face, and workpiece anode and tool cathode do synchronous rotary
Movement, while cathode is fed to anode, and the processing and forming of casing surface complex profile can be completed, the method has cathode number
Few, manufacturing procedure is simple, and casing surface is smooth, without " knot tool marks ", without " scallop ", high-efficient advantage；But this method can only
The identical part of boss profile cone angle is processed, needs to carry out Local Convex chaptrel exterior feature again for the boss profile of local different directions
Finishing processing.In addition, some casing piece surface boss structure shapes are single, array distribution casing one week, Electrolyzed Processing was such
When casing part, the tool cathode for being provided with single window can be used, it is accurate to control for casing surface array boss number n
The multiple proportion of tool cathode revolving speed (w) and workpiece anode revolving speed (nw), realize that the rotation of casing surface array concaveconvex structure prints electricity
Solution processing.
In Electrolyzed Processing large size casing part, meeting, bed load as the occasion requires is big, and processing electric current is high, and machine tool chief axis fever is serious
The problems such as.In patent " complex revolving body electrolytic machine tool " (201410573412.4), lathe uses vertical structure, on
Axis suspension, when processing large-scale casing, can bring larger tilting moment, cause its rigidity of machine tool poor, influence lathe on crossbeam
Machining accuracy and service life；The via hole type rotary conductive slip ring that its lathe uses allow by maximum current it is limited,
It is not able to satisfy the processing request of large scale casing.Therefore, in order to which the high-efficiency and precision for meeting large complicated type face casing part is electrolysed
Processing needs to carry out special designing to machine tool, had not only been able to satisfy a variety of processing technology requirements, but also have rigidity good, and had carried energy
The features such as power is big, allows processing electric current high.
Summary of the invention
The technical problem to be solved by the present invention is to status in view of the above technology, a kind of large carrying capacity, processing electricity are provided
It flows big, the machine tool rotary unit of high transmission accuracy and the high-accuracy rotation of casing part prints electrolytic machine tool, avoid the prior art
The problem that middle bearing capacity is small and spindle heat generation causes working ability limited.
To achieve the above object, the present invention provides following schemes: the present invention provides a kind of machine tool rotary unit, including rotation
Mandrel, hollow spindle, torque motor and the spindle drum for turning conducting ring and setting gradually from the inside to the outside, the rotary conducting ring packet
Conducting ring stator and conductive rotor are included, the conducting ring stator is connected with the spindle drum, sets in the conducting ring stator
It is equipped with relay terminal, the relay terminal is connected with power output end, and the conduction rotor is connected with the mandrel
It connects, the mandrel is located inside the hollow spindle, and the mandrel is connected with the hollow spindle, the mandrel and the sky
Insulating supporting set is provided between heart main shaft, the torque motor includes motor stator and rotor, and the motor stator is logical
It crosses axle sleeve to be connected with the spindle drum, the rotor and the hollow spindle are direct-connected.
Preferably, the first cooling duct is provided on the mandrel, it is cooling logical to be provided with second on the conduction rotor
Road, first cooling duct are connected with second cooling duct, the junction of the mandrel and the conductive rotor
O-ring seal is installed, second cooling duct is connected with a cooling tube, and it is completely cooling logical to form machine tool rotary unit
Road.
Preferably, the cooling duct is liquid nitrogen or electrolyte for transporting cooling medium, the cooling medium.
Preferably, the material of the hollow spindle is stainless steel, and the material of the mandrel is copper, and the mandrel inside and outside wall
Do preservative treatment.
Preferably, the mandrel end is provided with a flange, and the first bolt hole is provided on the flange, and the flange is logical
It crosses first bolt hole to be connected with the hollow spindle, is provided with bolt insulation sleeve in first bolt hole；The method
The second bolt hole is provided on orchid, the flange is connected by second bolt hole with the conductive rotor.
A kind of high-accuracy rotation print electrolytic machine tool of casing part is also provided in the present invention, including pedestal, setting are described
Reference platform and the laterally opposed tool cathode swing mechanism and workpiece anode being arranged on the reference platform on pedestal
Swing mechanism, the tool cathode swing mechanism include tool cathode turning unit and mobile unit, the workpiece anode revolution
Mechanism includes workpiece anode turning unit and fixed cell, the tool cathode turning unit and the workpiece anode turning unit
It include machine tool rotary unit as described above, the mobile unit includes setting gradually Y-direction linear motion from the bottom to top to put down
Platform, X are to linear motion platform and numerical control turntable, and the Y-direction linear motion platform is arranged on the reference platform, the number
Control revolving platform is connected with the spindle drum of the tool cathode turning unit, and the fixed cell includes a column, described
One end of column is connected with the reference platform, the main shaft of the other end of the column and the workpiece anode receipt member
Seat is connected.
Preferably, the tool cathode turning unit and the workpiece anode turning unit also include a clamping unit,
The clamping unit includes upper cover plate and lower cover plate, and the lower cover plate is bolted with the hollow spindle, the lower cover plate with
It is provided with bolt insulation sleeve in bolt hole on the hollow spindle, is arranged between the lower cover plate and the hollow spindle
Insulating supporting set is stated, the lower cover plate is connected with the mandrel, and the upper cover plate is connected by shank of bolt with the lower cover plate
It connects, a through-hole is provided on the lower cover plate and the upper cover plate, the through-hole is connected with first cooling duct.
The present invention achieve compared with the existing technology it is following the utility model has the advantages that
1, in machine tool rotary unit provided by the invention in such a way that torque motor and hollow spindle are direct-connected, with existing electricity
Solve machining tool servomotor, gear reducer again with main shaft be connected by way of compared with, transmission chain is short, high transmission accuracy.The biography
Flange form rotary conducting ring can be used in flowing mode, and via hole type rotary conducting ring can only be used by avoiding existing electrolytic machine tool
The drawbacks of, allow processing electric current to provide condition to improve lathe.
2, mandrel is mounted on inside hollow spindle in machine tool rotary unit provided by the invention, between mandrel and main shaft completely
Insulation, wherein hollow spindle uses stainless steel material, plays clamping electrode, and the mandrel copper product high using conductivity rises and draw
Electro ultrafiltration, is the design for wanting clamping electrode to draw electricity for it again relative to traditional electrolyte machining tool main shaft, which solves
The problem of spindle heat generation, improves permission processing electric current, can give full play to the advantage of Electrolyzed Processing highly-efficient processing.
3, machine tool rotary unit interior design provided by the invention has cooling duct, cools down to conducting ring and mandrel,
Improving turning unit allows processing electric current；The cooling duct can also be used as electrolyte liquid feeding channel, implementation tool cathode internal
Feed flow expands lathe application range.
4, horizontal type structure is used in the high-accuracy rotation print electrolytic machine tool of casing part provided by the invention, tool cathode returns
Rotation mechanism and workpiece anode swing mechanism are located at the two sides of lathe, and the movement mechanism of lathe is isolated with processing district, is avoided vertical
Structure machine tool upper rotary axis suspension is on crossbeam, the drawbacks of tilting moment is big, lathe poor rigidity；Also avoid rotating shaft be in plus
Work area, electrolyte can leak into turning unit, destroy machine tool element.When the machine tooling, electrolyte washes away from top to down,
Under the effect of gravity, it is more advantageous to the update of processing gap electrolyte inside.
5, because the weight of workpiece anode is much big in the high-accuracy rotation print electrolytic machine tool of casing part provided by the invention
In tool cathode, which is individually fixed on workpiece anode turning unit on column, and tool cathode turning unit is fixed on
On numerical control turntable, the load of numerical control turntable is alleviated, reduces the size of numerical control turntable, improves the processing energy of lathe
Power.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the overall structure diagram of the high-accuracy rotation print electrolytic machine tool of casing part in the present invention；
Fig. 2 is the overall structure diagram of machine tool rotary unit in the present invention；
Fig. 3 is the connection schematic diagram of rotary conducting ring and mandrel in the present invention；
Fig. 4 is the connection schematic diagram of clamping unit and mandrel and hollow spindle in the present invention；
Fig. 5 is casing surface complex unevenness structure synchronization rotation print Electrolyzed Processing schematic diagram；
Fig. 6 is casing surface array concaveconvex structure times revolving speed rotation print Electrolyzed Processing schematic diagram；
Fig. 7 is casing surface local configuration Electrolyzed Processing schematic diagram；
Wherein, 1, pedestal, 2, reference platform, 3, Y-direction linear motion platform, 4, numerical control turntable, 5, X it is flat to linear motion
Platform, 6, tool cathode swing mechanism, 7, tool cathode, 8, workpiece anode, 9, workpiece anode swing mechanism, 10, column, 11, master
Axle bed, 12, hollow spindle, 13, insulating supporting set, 14, mandrel, the 15, first cooling duct, 16, axle sleeve, 17, motor stator,
18, rotor, 19 piecemeal tool electrode for electrolytic machining, 20, conducting ring stator, 21, conductive rotor, 22, second is cooling logical
Road, 23, cooling tube, 24, relay terminal, 25, bolt insulation sleeve, 26, O-ring seal, 27, lower cover plate, 28, shank of bolt, 29,
Upper cover plate, 30, times revolving speed tool-electrode, 31, have array concaveconvex structure casing part, 32, the inconsistent casing zero in boss direction
Part.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The technical problem to be solved by the present invention is to status in view of the above technology, a kind of large carrying capacity, processing electricity are provided
It flows big, the machine tool rotary unit of high transmission accuracy and the high-accuracy rotation of casing part prints electrolytic machine tool, avoid the prior art
The problem that middle bearing capacity is small and spindle heat generation causes working ability limited.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Figs 1-4, the present invention provides a kind of machine tool rotary unit, including rotary conducting ring and from the inside to the outside successively
Mandrel 14, hollow spindle 12, torque motor and the spindle drum 11 of setting, rotary conducting ring include conducting ring stator 20 and conducting ring
Rotor 21, conducting ring stator 20 are connected with spindle drum 11, and relay terminal 24, stator wiring are provided in conducting ring stator 20
Column 24 is connected with power output end, and conductive rotor 21 is connected with mandrel 14, and mandrel 14 is located inside hollow spindle 12, core
Axis 14 is connected with hollow spindle 12, and insulating supporting set 13 is provided between mandrel 14 and hollow spindle 12, and torque motor includes
Motor stator 17 and rotor 18, motor stator 17 are connected by axle sleeve 16 with spindle drum 11, rotor 18 with it is hollow
Main shaft 12 is direct-connected.
Wherein, the motor stator 17 of torque motor passes through, axle sleeve 16 is fixedly connected with spindle drum 11, the motor of torque motor
Rotor 18 and hollow spindle 12 are direct-connected, and hollow spindle 12 is driven to rotate, and mandrel 14 is mounted on inside hollow spindle 12, and with sky
Heart main shaft 12 is fixedly connected, and completely insulated, the rotary conducting ring of mandrel 14 and hollow spindle 12 is realized by insulating supporting set 13
Conducting ring stator 20 be fixed on spindle drum 11, relay terminal 24 is connect by copper bar with power output end, i.e., using power
Torque motor and the direct-connected mode of hollow spindle 12, with existing electrolytic machine tool by servomotor, gear reducer again with main shaft phase
Mode even is compared, and transmission chain is short, high transmission accuracy.Flange form rotary conducting ring can be used in the kind of drive, avoids existing
There is the drawbacks of electrolytic machine tool can only use via hole type rotary conducting ring, allows processing electric current to provide item to improve lathe
Part；Mandrel 14 is mounted on inside hollow spindle 12, completely insulated between mandrel 14 and main shaft, wherein hollow spindle 12 plays clamping
Electrode effect, mandrel 14, which rises, draws electro ultrafiltration, clamping electrode is wanted to draw electricity again for it relative to traditional electrolyte machining tool main shaft
Design, which solves the problems, such as spindle heat generation, improves permission processing electric current, and it is efficient can to give full play to Electrolyzed Processing
The advantage of processing.
The first cooling duct 15 is provided in the present invention on mandrel 14, is provided with the second cooling duct on conductive rotor 21
22, the first cooling duct 15 is connected with the second cooling duct 22, and the junction of mandrel 14 and conductive rotor 21 is equipped with O-shaped
Sealing ring 26, the second cooling duct 22 are connected with a cooling tube 23, form the complete cooling duct of machine tool rotary unit；Its
In, O-ring seal 26 improves the connection sealing energy between mandrel 14 and conductive rotor 21；Cooling duct to mandrel 14 into
Row cooling.
Cooling duct is liquid nitrogen or electrolyte for transporting cooling medium, cooling medium in the present invention；Wherein it is possible to pass through
Cooling tube 23 is passed through liquid nitrogen into the first cooling duct 15 and the second cooling duct 22, when using liquid nitrogen as cooling medium, liquid
After nitrogen comes out from cooling duct, it is volatized into air environment；Again because electrolyte temperature is usually less than 35 DEG C, so can also be direct
Use electrolyte to pass through cooling tube 23 into the first cooling duct 15 and the second cooling duct 22 as cooling medium, uses electrolysis
It when liquid is as medium, after electrolyte is flowed out from the first cooling duct 15, returns in electrolyte container, therefore uses two kinds of coolings
Medium, cooling duct do not require to be closed, and will not change electrolyte component, will not influence the progress of processing.The cooling duct
Electrolyte liquid feeding channel when can be used as Electrolyzed Processing, 7 inside fliud flushing of implementation tool cathode.
The material of hollow spindle 12 is stainless steel in the present invention, and the material of mandrel 14 is copper, and inside and outside wall does preservative treatment；
Wherein, hollow spindle 12 selects Stainless steel 316 L, has good corrosion resistance, the copper product that mandrel 14 selects resistivity low.
For the ease of connection, 14 end of mandrel is provided with a flange in the present invention, and the first bolt hole, method are provided on flange
Orchid is connected by the first bolt hole with hollow spindle 12, and bolt insulation sleeve 25 is provided in the first bolt hole；It is arranged on flange
There is the second bolt hole, flange is connected by the second bolt hole with conductive rotor 21.
A kind of high-accuracy rotation print electrolytic machine tool of casing part is also provided in the present invention, including pedestal 1, setting are in pedestal
Reference platform 2 and the laterally opposed tool cathode swing mechanism 6 being arranged on reference platform 2 and the revolution of workpiece anode on 1
Mechanism 9, tool cathode swing mechanism 6 include tool cathode turning unit and mobile unit, and workpiece anode swing mechanism 9 includes work
Part anode turning unit and fixed cell, tool cathode turning unit and workpiece anode turning unit include such as above-mentioned lathe
Turning unit, mobile unit include setting gradually Y-direction linear motion platform 3, X from the bottom to top to linear motion platform 5 and numerical control
Revolving platform 4, Y-direction linear motion platform 3 are arranged on reference platform 2, the main shaft of numerical control turntable 4 and tool cathode turning unit
Seat 11 is connected, and fixed cell includes a column 10, and one end of column 10 is connected with reference platform 2, the other end of column 10
It is connected with the spindle drum 11 of workpiece anode receipt member.
Tool cathode turning unit and workpiece anode turning unit also include a clamping unit, clamping unit in the present invention
Including upper cover plate 29 and lower cover plate 27, lower cover plate 27 is bolted with hollow spindle 12, on lower cover plate 27 and hollow spindle 12
It is provided with bolt insulation sleeve 25 in bolt hole, insulating supporting set 13, lower cover plate are provided between lower cover plate 27 and hollow spindle 12
27 are connected with mandrel 14, and upper cover plate 29 is connected by shank of bolt 28 with lower cover plate 27, on lower cover plate 27 and upper cover plate 29
It is provided with a through-hole, through-hole is connected with the first cooling duct 15.
Wherein, as shown in figure 5, the electrochemical machining process of casing surface complex unevenness structure are as follows: tool cathode swing mechanism 6
By 4 beat certain angle of numerical control turntable, keep the bus of tool cathode 7 parallel with the bus of workpiece anode 8, when processing, work
Have cathode 7 and workpiece anode 8 with identical angular speed W relative rotation, electrolyte high speed flows through processing district, 8 surface of workpiece anode
Material starts to be dissolved under electrolysis, and the material at position corresponding to window is retained on tool cathode 7, to turning over
Cheng Zhong, the shape of window is copied to 8 surface of workpiece anode on tool cathode 7, at the same tool cathode 7 to workpiece with the edge speed V
Outer surface of workpiece normal direction is at the uniform velocity fed, and with the continuous feeding of tool cathode 7, anode workpiece surface forms the complexity of certain altitude
Concaveconvex structure completes the Electrolyzed Processing of casing surface complex unevenness structure.
As shown in fig. 6, casing surface array concaveconvex structure times revolving speed rotation print electrochemical machining process are as follows: times revolving speed tool-electrode
30 beat certain angles keep tool cathode bus parallel with workpiece anode bus, and when processing, workpiece anode and tool cathode are distinguished
With W, nW relative rotation, electrolyte flows through processing district from side high speed, and anode workpiece surfacing is removed under electrolysis,
It is retained with the material of tool cathode window corresponding position, because tool cathode revolving speed is n times of workpiece anode, to turning over
Cheng Zhong, the boss of workpiece surface n array distribution of formation, while tool cathode are to workpiece with speed V along outer surface of workpiece normal direction
It at the uniform velocity feeds, with the continuous feeding of tool cathode, completes the electrolysis that casing surface has array concaveconvex structure casing part 31
Processing.
As shown in fig. 7, casing outer surface local configuration piecemeal electrochemical machining process are as follows: piecemeal tool electrode for electrolytic machining 19
It is mounted on lower cover plate 27, by gasket, completes the sealing of electrolyte.When processing, electrolyte reaches work by cooling duct
Tool cathode liquid outlet enters processing district, and cathode direction of feed is consistent with target boss direction, with the continuous feeding of cathode, completes
The precision ECM of the inconsistent casing part 32 in boss direction is processed.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (7)
1. a kind of machine tool rotary unit, which is characterized in that mandrel, the sky set gradually including rotary conducting ring and from the inside to the outside
Heart main shaft, torque motor and spindle drum, the rotary conducting ring include conducting ring stator and conductive rotor, and the conducting ring is fixed
It is sub to be connected with the spindle drum, relay terminal is provided in the conducting ring stator, the relay terminal and power supply are defeated
Outlet is connected, and the conduction rotor is connected with the mandrel, and the mandrel is located inside the hollow spindle, the core
Axis is connected with the hollow spindle, and insulating supporting set, the torque electricity are provided between the mandrel and the hollow spindle
Machine includes motor stator and rotor, and the motor stator is connected by axle sleeve with the spindle drum, the rotor
It is direct-connected with the hollow spindle.
2. machine tool rotary unit according to claim 1, which is characterized in that it is cooling logical to be provided with first on the mandrel
Road, it is described conduction rotor on be provided with the second cooling duct, first cooling duct is connected with second cooling duct
Logical, the junction of the mandrel and the conductive rotor is equipped with O-ring seal, second cooling duct and a cooling tube
It is connected, forms the complete cooling duct of machine tool rotary unit.
3. machine tool rotary unit according to claim 2, which is characterized in that the cooling duct is for transporting cooling Jie
Matter, the cooling medium are liquid nitrogen or electrolyte.
4. machine tool rotary unit according to claim 1, which is characterized in that the material of the hollow spindle is stainless steel,
The material of the mandrel is copper, and the mandrel inside and outside wall does preservative treatment.
5. machine tool rotary unit according to claim 1, which is characterized in that the mandrel end is provided with a flange, institute
It states and is provided with the first bolt hole on flange, the flange is connected by first bolt hole with the hollow spindle, described
Bolt insulation sleeve is provided in first bolt hole；The second bolt hole is provided on the flange, the flange passes through described second
Bolt hole is connected with the conductive rotor.
6. a kind of high-accuracy rotation of casing part prints electrolytic machine tool, which is characterized in that on the base including pedestal, setting
Reference platform and the laterally opposed tool cathode swing mechanism being arranged on the reference platform and workpiece anode turn-around machine
Structure, the tool cathode swing mechanism include tool cathode turning unit and mobile unit, the workpiece anode swing mechanism packet
Workpiece anode turning unit and fixed cell are included, the tool cathode turning unit and the workpiece anode turning unit include
Machine tool rotary unit as described in any one in claim 1-5, the mobile unit include setting gradually Y-direction straight line from the bottom to top
To linear motion platform and numerical control turntable, the Y-direction linear motion platform is arranged on the reference platform by motion platform, X,
The numerical control turntable is connected with the spindle drum of the tool cathode turning unit, and the fixed cell includes one vertical
Column, one end of the column are connected with the reference platform, the other end of the column and the workpiece anode turning unit
The spindle drum be connected.
7. the high-accuracy rotation of casing part according to claim 6 prints electrolytic machine tool, which is characterized in that the tool yin
Pole turning unit and the workpiece anode turning unit also include a clamping unit, and the clamping unit includes upper cover plate under
Cover board, the lower cover plate are bolted with the hollow spindle, are set in the lower cover plate and the bolt hole on the hollow spindle
Be equipped with bolt insulation sleeve, be provided with the insulating supporting set between the lower cover plate and the hollow spindle, the lower cover plate with
The mandrel is connected, and the upper cover plate is connected by shank of bolt with the lower cover plate, the lower cover plate and the upper cover plate
On be provided with a through-hole, the through-hole is connected with first cooling duct.
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| CN110153514B (en) * | 2019-04-24 | 2020-07-28 | 南京航空航天大学 | Method for predicting minimum machining gap and average erosion rate in spin-printing electrolytic machining process |
| CN112589216B (en) * | 2020-08-17 | 2021-11-05 | 南京航空航天大学 | Online detection device and method for spin-printing electrolytic machining gap |
| CN112222547B (en) * | 2020-09-29 | 2023-03-14 | 扬州大学 | Efficient electrochemical machining device and method for multiple-cavity structure on inner surface of casing |
| CN112676658A (en) * | 2020-11-25 | 2021-04-20 | 南京航空航天大学 | Multi-rotating-speed rotary printing electrolysis system and method for concave-convex array structure on surface of revolving body |
| CN112975010B (en) * | 2021-01-27 | 2022-04-08 | 南京航空航天大学 | Reciprocating spin-printing electrolytic machining method |
| CN113263233B (en) * | 2021-06-10 | 2021-12-28 | 南京宁庆数控机床制造有限公司 | Main shaft heat radiation structure of special processing machine tool |
| CN113305381B (en) * | 2021-06-16 | 2022-06-07 | 南京航空航天大学 | A sectional type negative pole instrument for rotary printing electrolytic machining |
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| JP2008290195A (en) * | 2007-05-25 | 2008-12-04 | Nippon Densan Corp | Shaft and sleeve manufacturing method, fluid dynamic pressure bearing mechanism, and motor |
| CN102601473B (en) * | 2012-01-13 | 2013-06-19 | 哈尔滨工业大学 | Spindle device for processing micro-hole electric spark based on magnetic levitation servo drive |
| DE102013224165B4 (en) * | 2013-11-26 | 2023-05-11 | Robert Bosch Gmbh | Method and device for manufacturing an assembly and assembly manufactured therewith |
| CN104148754B (en) * | 2014-08-22 | 2016-03-09 | 常州工学院 | A kind of numerical control electrolytic machine tool main shaft oscillating movement device |
| CN104384643B (en) * | 2014-10-16 | 2016-12-07 | 南京航空航天大学 | Aero-engine Thin-Wall Outer Casing electrochemical machining method |
| CN104353916A (en) * | 2014-10-24 | 2015-02-18 | 南京航空航天大学 | Electrochemical machining machine tool for complex rotary component |
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