CN106112159A - The Electrolyzed Processing vibration feed device of a kind of Parameter adjustable and control method thereof - Google Patents
The Electrolyzed Processing vibration feed device of a kind of Parameter adjustable and control method thereof Download PDFInfo
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- CN106112159A CN106112159A CN201610585841.2A CN201610585841A CN106112159A CN 106112159 A CN106112159 A CN 106112159A CN 201610585841 A CN201610585841 A CN 201610585841A CN 106112159 A CN106112159 A CN 106112159A
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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
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/26—Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
- B23H7/30—Moving electrode in the feed direction
-
- 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
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/14—Electric circuits specially adapted therefor, e.g. power supply
- B23H7/20—Electric circuits specially adapted therefor, e.g. power supply for programme-control, e.g. adaptive
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses Electrolyzed Processing vibration feed device and the control method thereof of a kind of adjustable parameter, it includes the controller of vibration feed, vibrating device and vibratory drive system, detection device, feed arrangement and drive system thereof.The Electrolyzed Processing vibration feed device of the adjustable parameter that the present invention provides, reasonable in design, there is the driving force of high speed and high acceleration, the integrated level controlled is high with automaticity, and carried out position detection by high-precision grating, high performance driver realizes being controlled position ring, the electric current loop of motor, Torque Control is accurate, motion positions precision is high, the frequency of vibration and amplitude pass through program setting, different frequencies can be realized regulate with amplitude parameter, it is possible to meet the running parameter change requirement in Electrolyzed Processing.
Description
Technical field
The present invention relates to the vibration feed device for Electrolyzed Processing of a kind of Parameter adjustable, belong to electrochemical Machining Technology neck
Territory.
Background technology
It is lossless that Electrolyzed Processing has negative electrode, without macroscopic view cutting force, not by features such as rapidoprint hardness are limited.Due to it
Have bigger in terms of processing nickel base superalloy, titanium alloy material structural member in processing cost, working (machining) efficiency, surface quality
Advantage, thus one of main machining method becoming these difficult-to-machine materials.Electrolyzed Processing is usually used in aero-engine leaf
Sheet, gun tube rifling, deep hole, gear, spline, part polishing, deburring etc., it is at processing high temperature alloy, titanium alloy material
There is bigger advantage during the complex parts manufactured, be the most widely used in Aero-Space, weapon, automobile, medical apparatus and instruments, instrument
The manufacturings such as table.
Vibration feed Electrolyzed Processing mode can improve the flow field state within interelectrode gap, improves electrolysate
Get rid of speed, enable the renewal of electrolyte execution cycle property, such that it is able to further improve the precision of Electrolyzed Processing.Pulse
Power supply is connected the minimum of pole clearance when；Cutting off when the pulse power expands in pole clearance, such Electrolyzed Processing is the most permissible
Under common electrolyte pressure, realize processing during small-gap suture (less than 0.05 millimeter), get rid of electrolysate during wide arc gap, therefore
Vibration feed can significantly increase machining accuracy and its stability of Electrolyzed Processing.The most substantial amounts of the most external application
This method is used for processing blade, forging die etc., and its precision has been over 0.1mm.Distinguish from type of drive at present and be used for
Produce the vibrational system of linear reciprocal movement, several sides such as mechanical type, fluid pressure type, piezoelectric ceramic type and electromagnetic type can be divided into
Formula.
Hydraulic type vibratory device by electrohydraulic servo valve-electro-hydraulic converting element, by hydraulic oil according to the electric current letter controlled
Number size be input to the piston both sides of servo-cylinder, make oil cylinder export the command displacement being directly proportional to current signal, drive and bear
Carrying is moved.Hydraulic type vibratory device has a characteristic that duty factor is relatively big, and power output is the biggest, vibration frequency range 0～
20Hz, vibration amplitude is big, can have arbitrary moving wave shape, it is possible to its moving wave shape of regulation and parameter easily, but
Its cost needs is high and precision is the highest.
Piezoelectric ceramic type vibrating device is the inverse piezoelectric effect utilizing piezoelectric, under the effect of input voltage or electric current
Deform upon, it is achieved drive the purpose of object.Being mainly characterized in that: because volume is little so its load is general of piezoelectric ceramic type
Greatly, power output is little, and frequency of vibration is 0～20KHz, and Amplitude Comparison is little, and precision is higher, but regulation is the most convenient.
Electromagnetic vibrating device is to use the power on conductor to be realized by Ampere force being driven load in magnetic field, passes through
Change size of current and direction in conductor, complete the adjustment to loading speed and the direction of motion.The type of drive of electromagnetic type it
Loading the biggest, power output is also general, and frequency of vibration can reach 0～100Hz, and Oscillation Amplitude is less, and have can be square
Just the waveform of arbitrarily regulation, precision is higher.
The vibrating device of Electrolyzed Processing is typically mounted on the main shaft of lathe or on workbench, vibrating device drive negative electrode
Or workpiece does vibration feed motion together.Result of study shows both at home and abroad, and the frequency of vibration that Electrolyzed Processing uses is 30～100Hz
Between the most suitable.The parameters such as weight according to general electrolytic machining device, inertia, operation time, Oscillation Amplitude calculate,
Vibration the thrust that continues of holding maintain more than 300N, if generations amplitude is 0.1mm, the vibration of frequency 50Hz, acceleration of vibration and
Deceleration reaches 20g, and general mechanical, electrical, fluid servo system is difficult to the switching of this high speed, the therefore design to vibrating device
High requirement is proposed with manufacturing.Current existing vibrating device is difficult to reach such requirement, therefore designs high thrust, height
The Electrolyzed Processing vibrating device of precision is to improve a lathe electrolysis machining accuracy technical barrier to be solved.
Summary of the invention
Goal of the invention: the present invention seeks to overcome the deficiencies in the prior art, it is provided that a kind of reasonable in design, automatization's journey
Degree height, the vibration parameters of processing is adjustable, and machining accuracy is high, the vibration feed device of the Electrolyzed Processing that work efficiency is high.
Technical scheme: in order to realize object above, the technical scheme that the present invention takes is:
A kind of Electrolyzed Processing vibration feed device of adjustable parameter, it include the controller of vibration feed, vibrating device and
Vibratory drive system, detection device, feed arrangement and drive system thereof；
Controller controls AC servo and drives feed arrangement to make location motion and low speed electricity by ball screw framework
Solve processing feed motion, control vibrating device again in predetermined operating position and carry out negative electrode vibration；First to write in the controller
Control frequency of vibration and the control program of amplitude, then controlled the work process of vibrating device by vibratory drive system；Vibration dress
Put and use voice coil motor as vibration source, produce certain thrust and drive negative electrode to do reciprocating motion at a high speed, utilize light simultaneously
The position of vibrating spindle is accurately detected by grid, controls motion of main shaft and location；
Described controller includes controlling computer, motion control card, keyset, AC servo machinery driving device, exchanging and watch
Take motor, driven by vibrating motors device, main power source, accessory power supply, the stator module of vibrating motor and the mover assembly of vibrating motor；
Described motion control card is arranged in the PCI slot controlling computer, and motion control card is connected with keyset by data wire；
Control to be connected with connection between computer and driven by vibrating motors device, driven by vibrating motors device and main power source and accessory power supply phase
Even；The data wire of grating reading head is connected with the raster interface of driven by vibrating motors device, AC servo motor and AC servo electricity
Machine driver is connected.
Preferably, the Electrolyzed Processing vibration feed device of above-described adjustable parameter, described vibrating device
Including vibration motor stator assembly, vibrating motor mover assembly, housing, sleeve, stop pin, vibrating shaft, motor mounting plate, grating
Chi, read head, mounting bracket, connecting rod；Vibration motor stator assembly is installed in the housing, vibration motor stator assembly and motor
Installing plate screw connects, and motor mounting plate is connected with housing, and vibrating motor mover assembly is connected with vibrating shaft screw, vibration
Axle is arranged in the sliding bearing in sleeve, and sleeve links together with housing, and stop pin is arranged on by positioning hole in sleeve
In pin-and-hole on vibrating shaft, thus preventing from rotating at the volley with vibrating shaft, vibrating shaft end cap seals；Connecting rod one end is passed through
Being threaded on vibrating shaft, the other end is arranged in fairlead, is provided with grating scale mounting seat in the upper surface of connecting rod,
Read head is arranged in mounting bracket, and grating scale and read head constitute grating assembly；Vibration motor stator assembly and vibrating motor
Mover assembly constitutes vibrating motor.
Preferably, the Electrolyzed Processing vibration feed device of above-described adjustable parameter, the housing of vibrating device
Being arranged on planker, planker is by AC servo machinery driving, and AC servo motor is connected with decelerator, decelerator and ball-screw
Being connected, ball-screw drives planker to move along the rail；AC servomotor is controlled by the numerical control program controlled in computer
Feed motion；Vibrating device, while doing feed motion, is moved by the vibration programme-control vibrating motor in vibrating controller,
Vibrating motor mover assembly drives vibrating shaft and negative electrode to vibrate.
The control method of the vibration feed device of a kind of Parameter adjustable joint, the work process of vibration feed device is by controlling meter
Calculation machine is controlled, and installs digital control software in controlling computer；First in controlling computer, recall the motion of motor
Program, performs the motor program according to processing request establishment；The driver of vibrating motor by drive controller, power amplifier,
Raster interface and communication interface composition, the vibrating motor that driving controller acceptance control computer is transmitted through by communication interface
Control program, by driving controller to take charge of the explanation and perform, drives the position of the controller operating current to vibrating motor and mover
Put and be controlled；Vibrating motor motion is by dedicated program control, by arranging the move distance of vibrating motor in a program and adding
Speed regulation frequency of vibration and vibration width；The instruction system of numerical control campaign is write and controls driven by vibrating motors device Program
Perform and stop special instruction, thus controlling motion and the stopping of vibrating motor.
Beneficial outcomes: compared to the prior art, the present invention has the following advantages:
The vibration feed device of the Electrolyzed Processing that the present invention provides is controlled feeding and vibration by computer.Use motor control
Card, AC synchronous sampling and ball-screw nut mechanism realize the low speed feed motion of vibrating device.Vibrating device is by voice coil loudspeaker voice coil
Motor, motor driver, grating etc. form, and have the driving force of high speed and high acceleration.Vibrate with feed arrangement by same
Platform calculates and controls, and the integrated level of control is high with automaticity.
Vibrating device uses voice coil type linear electric motors composition, grating and frame for movement composition.Carried out by high-precision grating
Position is detected, and high performance driver realizes being controlled position ring, the electric current loop of motor, and Torque Control is accurate, motion is fixed
Position precision is high.The frequency of vibration and amplitude pass through program setting, it is possible to achieve different frequencies regulates with amplitude parameter, it is possible to full
Running parameter change requirement in foot Electrolyzed Processing.
Accompanying drawing explanation
The structural representation of the Electrolyzed Processing vibration feed device of the adjustable parameter that Fig. 1 provides for the present invention.
The structural representation during vertical view of the Electrolyzed Processing vibration feed device of the adjustable parameter that Fig. 2 provides for the present invention.
The block diagram of control system in the Electrolyzed Processing vibration feed device of the adjustable parameter that Fig. 3 provides for the present invention.
The system of driven by vibrating motors device in the Electrolyzed Processing vibration feed device of the adjustable parameter that Fig. 4 provides for the present invention
Block diagram.
Detailed description of the invention
Embodiment 1
A kind of Electrolyzed Processing vibration feed device is composited by vibrating device and feed arrangement, and it includes vibration feed
Controller, vibrating device and vibratory drive system, detection device, feed arrangement and drive system thereof；Controller controls exchange
Servosystem drives vibration feed device to make location motion and low speed Electrolyzed Processing feed motion, in advance by ball screw framework
Fixed operating position controls vibrational system again and carries out negative electrode vibration, by writing control frequency of vibration and the control of amplitude in controller
Program, is controlled the work process of vibrating motor by vibratory driver.Vibrating device uses voice coil motor as vibration source, produces
Enough thrust drives negative electrode to do reciprocating motion at a high speed, utilizes grating accurately to detect the position of vibrating spindle simultaneously,
Control motion and the location of vibrating shaft.
As shown in Figures 1 to 4.Described controller includes controlling computer 21, motion control card 20, keyset 28, exchange
Motor servo driver 36, AC servo motor 26, driven by vibrating motors device 25, main power source 23, accessory power supply 24, vibrating motor
Stator module 13 and the mover assembly 14 of vibrating motor；Described motion control card 20 is arranged on the PCI controlling computer 21
In slot, motion control card 20 is connected with keyset 35 by data wire；Control computer 21 and driven by vibrating motors device 25 it
Between with connection be connected, driven by vibrating motors device 25 is connected with main power source 23 and accessory power supply 24；The data of grating reading head 11
Line is connected with the raster interface of driven by vibrating motors device 25, and AC servo motor 26 is connected with AC servo machinery driving device 36.
The Electrolyzed Processing vibration feed device of above-described adjustable parameter, described vibrating device includes that vibrating motor is fixed
Sub-component 13, vibrating motor mover assembly 14, housing 6, sleeve 7, stop pin 8, vibrating shaft 15, motor mounting plate 4, grating scale
10, read head 11, mounting bracket 12, connecting rod 5；Vibration motor stator assembly 13 is arranged in housing 6, vibration motor stator group
Part 13 is connected with screw with motor mounting plate 4, and motor mounting plate 4 is connected with housing 6, vibrating motor mover assembly 14 and vibrating shaft
15 connect with screw, and vibrating shaft 15 is arranged in the sliding bearing 16 in sleeve 7, and sleeve 7 links together with housing 6, anti-rotation
Pin 8 is arranged in the pin-and-hole on vibrating shaft 15 by positioning hole in sleeve 7, thus prevents from rotating at the volley with vibrating shaft 15,
Vibrating shaft 15 end cap 18 seals；Connecting rod 5 one end is threadedly attached on vibrating shaft 15, and the other end is arranged on fairlead 3
In, grating scale mounting seat 2 is installed in the upper surface of connecting rod 5, read head 11 is arranged in mounting bracket 12, grating scale 10
Grating assembly is constituted with read head 11；Vibration motor stator assembly 13 and vibrating motor mover assembly 14 constitute vibrating motor.
The Electrolyzed Processing vibration feed device of above-described adjustable parameter, the housing 6 of vibrating device is arranged on planker 32
On, planker 32 is driven by AC servo motor 26, and AC servo motor 26 is connected with decelerator 27, decelerator 27 and ball-screw
28 are connected, and ball-screw 28 drives planker 32 to move along guide rail 29；Controlled exchange by the numerical control program controlled in computer 21 to watch
Take the feed motion of motor 26；Vibrating device 31 is while doing feed motion, by the vibration program control in vibrating controller
Vibrating motor processed moves, and vibrating motor mover assembly 14 drives vibrating shaft 15 and negative electrode 33 to vibrate.
Controlling computer 21 and select 15 inch industrial touching computers of Shanghai Fu Yan company, motion control card 20 selects platform
Gulf ICP DAS company PISO-PS300 motion control card.Grating selects the RGH24Y15A30A grating of Reinshaw company, differentiates
Rate 0.1 micron, movement velocity is 6m/min.
Embodiment 2
The control method of the vibration feed device of a kind of Parameter adjustable joint, the work process of vibration feed device is by controlling meter
Calculation machine is controlled, and installs digital control software in controlling computer；Recall the motor program of motor the most in the controller,
Perform the motor program according to processing request establishment.The Harmonica brand of ELMO company selected by driven by vibrating motors device 25
Digital Servo Driver, it is made up of controller, power amplifier, raster interface, communication interface etc., drives controller to accept control
The motor program of the vibrating motor that computer processed is transmitted through by communication interface, by driving controller to take charge of the explanation and perform, control
The operating current of vibrating motor is controlled by computer 21 processed with the position of mover.Vibrating motor moves by dedicated program control
System, uses in the controller that special-purpose software downloads in driver after writing, the oscillating movement side of vibrating motor in the controller
Formula by triangle or trapezoidal in the way of work, the parameter regulation vibration frequencies such as the move distance of motor and acceleration are set in a program
Rate and vibration width.In the instruction system of digital control system, write the execution controlling driven by vibrating motors device Program and stopped specially
With instruction, thus control motion and the stopping of vibrating motor.
The speed of vibrating motor works with triangle model, then the load capacity computational methods that system is born are as follows:
The acceleration of electric mover assembly or the computing formula of deceleration be:
ac=ad=4 d/T2 (1)
In above formula: acAcceleration, adDeceleration, d move distance, T movement time.
If the gross mass of load is m on vibrating shaft, required maximum thrust=acceleration force=deceleration forces=load * adds
Speed, i.e.
F max=mac=mad (2)
The required thrust computing formula that continues of holding is:
In above formula: FRMSContinuing thrust, Fa acceleration force, Fc at the uniform velocity Duan Li, Fd deceleration forces, Fw stagnates
Power, the Ta acceleration time, the Tc at the uniform velocity time, Td deceleration time, Tw dead time.
What maximum thrust needed for this vibrating device and average thrust should be less than vibrating motor holds continue thrust and maximum thrust.
I.e.
FRMS＜ λ1FmAnd Fmax＜ λ2Fp (4)
In above formula: FmVibrating motor continues thrust, FpVibrating motor maximum thrust, λ safety coefficient.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. the Electrolyzed Processing vibration feed device of an adjustable parameter, it is characterised in that: it includes the controller of vibration feed, shakes
Dynamic device and vibratory drive system, detection device, feed arrangement and drive system thereof；
Described controller includes controlling computer (21), motion control card (20), keyset (28), AC servo machinery driving device
(36), AC servo motor (26), driven by vibrating motors device (25), main power source (23), accessory power supply (24), the determining of vibrating motor
The mover assembly (14) of sub-component (13) and vibrating motor；Described motion control card (20) is arranged on and controls computer (21)
In PCI slot, motion control card (20) is connected with keyset (35) by data wire；Control computer (21) to drive with vibrating motor
Being connected with connection between dynamic device (25), driven by vibrating motors device (25) is connected with main power source (23) and accessory power supply (24)；Light
The data wire of grid read head (11) is connected with the raster interface of driven by vibrating motors device (25), AC servo motor (26) with exchange
Motor servo driver (36) is connected.
The Electrolyzed Processing vibration feed device of adjustable parameter the most according to claim 1, it is characterised in that: described vibration
Device include vibration motor stator assembly (13), vibrating motor mover assembly (14), housing (6), sleeve (7), stop pin (8),
Vibrating shaft (15), motor mounting plate (4), grating scale (10), read head (11), mounting bracket (12), connecting rod (5)；Vibration electricity
Motor stator component (13) is arranged in housing (6), and vibration motor stator assembly (13) is connected with screw with motor mounting plate (4),
Motor mounting plate (4) is connected with housing (6), and vibrating motor mover assembly (14) is connected with screw with vibrating shaft (15), vibrating shaft
(15) being arranged in the sliding bearing (16) in sleeve (7), sleeve (7) links together with housing (6), and stop pin (8) passes through
In sleeve (7), hole, location is arranged in the pin-and-hole on vibrating shaft (15), thus prevents from rotating at the volley with vibrating shaft (15), shakes
Moving axis (15) end cap (18) seals；Connecting rod (5) one end is threadedly attached on vibrating shaft (15), and the other end is arranged on leads
In set (3), being provided with the mounting seat (2) of grating scale in the upper surface of connecting rod (5), read head (11) is arranged on installation
On frame (12), grating scale (10) and read head (11) constitute grating assembly；Vibration motor stator assembly (13) and vibrating motor move
Sub-component (14) constitutes vibrating motor.
The Electrolyzed Processing vibration feed device of adjustable parameter the most according to claim 1, it is characterised in that: vibrating device
Housing (6) is arranged on planker (32), and planker (32) is driven by AC servo motor (26), AC servo motor (26) and deceleration
Device (27) is connected, decelerator (27) is connected with ball-screw (28), and ball-screw (28) drives planker (32) to transport along guide rail (29)
Dynamic；The feed motion of AC servomotor (26) is controlled by the numerical control program controlled in computer (21)；Vibrating device (31)
While doing feed motion, the vibration programme-control vibrating motor in vibrating controller move, vibrating motor mover assembly
(14) vibrating shaft (15) and negative electrode (33) is driven to vibrate.
4. the control method of the vibration feed device of Parameter adjustable joint, it is characterised in that: vibration feed device worked
Journey is controlled by controlling computer, installs digital control software in controlling computer；First recall in controlling computer
The motor program of motor, performs the motor program according to processing request establishment；Driven by vibrating motors device (25) includes controller, merit
Rate amplifier, raster interface and communication interface, drive controller to accept to control the vibration that computer is transmitted through by communication interface
The motor program of motor, by driving controller to take charge of the explanation and perform, drives controller to the operating current of vibrating motor and to move
The position of son is controlled；Vibrating motor motion by dedicated program control, by arrange in a program the motion of vibrating motor away from
Frequency of vibration and vibration width is regulated from acceleration；The instruction system of numerical control campaign is write in control driven by vibrating motors device
The execution of program and stopping special instruction, thus control motion and the stopping of vibrating motor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585841.2A CN106112159A (en) | 2016-07-22 | 2016-07-22 | The Electrolyzed Processing vibration feed device of a kind of Parameter adjustable and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610585841.2A CN106112159A (en) | 2016-07-22 | 2016-07-22 | The Electrolyzed Processing vibration feed device of a kind of Parameter adjustable and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107322112A (en) * | 2017-07-17 | 2017-11-07 | 常州工学院 | A kind of pulse current matches feed arrangement with vibration |
| CN110170713A (en) * | 2019-05-10 | 2019-08-27 | 中国航发南方工业有限公司 | Radial diffuser inter-leaf flow channel forming and machining method |
| CN110539043A (en) * | 2019-09-26 | 2019-12-06 | 哈尔滨理工大学 | Electrolytic machining vibration feed motion realization device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107322112A (en) * | 2017-07-17 | 2017-11-07 | 常州工学院 | A kind of pulse current matches feed arrangement with vibration |
| CN110170713A (en) * | 2019-05-10 | 2019-08-27 | 中国航发南方工业有限公司 | Radial diffuser inter-leaf flow channel forming and machining method |
| CN110539043A (en) * | 2019-09-26 | 2019-12-06 | 哈尔滨理工大学 | Electrolytic machining vibration feed motion realization device |
| CN110539043B (en) * | 2019-09-26 | 2020-10-30 | 哈尔滨理工大学 | Electrolytic machining vibration feed motion realization device |
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