CN104439572B - Galvano-cautery system of processing and method - Google Patents
Galvano-cautery system of processing and method Download PDFInfo
- Publication number
- CN104439572B CN104439572B CN201310419535.8A CN201310419535A CN104439572B CN 104439572 B CN104439572 B CN 104439572B CN 201310419535 A CN201310419535 A CN 201310419535A CN 104439572 B CN104439572 B CN 104439572B
- Authority
- CN
- China
- Prior art keywords
- electrode
- processing
- workpiece
- volume
- galvano
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- 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
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
- B23H3/02—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention relates to a kind of galvano-cautery system of processing.The galvano-cautery system of processing includes：Electrode, for processing workpiece；Power supply, is opposite polarity for exciting electrode and workpiece；Electrolyte supply device, for providing electrolyte between electrode and workpiece；Operation device, for relative to workpiece traveling electrode；And control device.Control device is used for：The machining path traveling electrode that control operation device is set according to control device processes workpiece come one machined layer of a machined layer, it is determined that processing the loss value of the volume for the material that workpiece is removed by electrode and electrode after one or more machined layers, then one or more machined layers are divided into multiple processing blocks along machining path, determine the volume of processing block, and the volume compensation electrode for the volume of material, the loss value of electrode and the processing block being removed according to workpiece loss.The invention further relates to a kind of galvano-cautery processing method, the loss to electrode is compensated.
Description
Technical field
The present invention is about a kind of galvano-cautery system of processing and method, more particularly to a kind of loss to electrode is compensated
Galvano-cautery system of processing and method.
Background technology
Galvano-cautery is processed（Electroerosion Machining, EEM）It is to be needed by electric spark or electric arc melting workpiece
Part to be removed, works the work piece into certain shape.DC voltage is provided between workpiece and electrode, to produce electric fire
Flower or the electric arc of moment.About 0.01 millimeter to about 0.50 millimeter of gap is left between the end of electrode and workpiece, and
Immerse in electrolyte.Electrolyte in gap produces electric spark or wink because of direct current part ionization between electrode and workpiece
Between electric arc.Electric spark and/or electric arc produce enough heats to melt a small amount of workpiece material, form small recessed in workpiece surface
Fall into, then electrolyte washes away the material of melting.
Galvano-cautery processing is to remove workpiece by a series of electric spark produced between electrode and workpiece under the electric field
Material.Electrode is along estimated path close to workpiece.A series of electric spark produces continuous dolly dimple, and electrode on workpiece
Material is removed along estimated machining path.Galvano-cautery processing is generally used to processing hard metal or uses other method（For example, car
Bed, drill bit etc.）Very difficult to machine material.
However, in galvano-cautery process, electrode can be lost, become shorter and shorter, it is less and less.So use the electrode
The possible out-of-flatness in the surface of the workpiece of processing, it is impossible to expected working depth is reached, so as to influence galvano-cautery to process.
Asked therefore, it is necessary to provide a kind of galvano-cautery system of processing and method to solve at least one above mentioned technology
Topic.
The content of the invention
One aspect of the present invention is to provide a kind of galvano-cautery system of processing.The galvano-cautery system of processing includes：Electrode,
For processing workpiece；Power supply, for encouraging the electrode and the workpiece to be opposite polarity；Electrolyte supply device, is used for
Electrolyte is provided between the electrode and the workpiece；Operation device, for moving the electrode relative to the workpiece；And
Control device.Control device is used for：The operation device is controlled according to the machining path movement that the control device is set
Electrode processes the workpiece with carrying out one machined layer of a machined layer, it is determined that processing described after one or more machined layers
The loss value of the volume for the material that workpiece is removed by the electrode and the electrode, by one or more machined layers then along
The machining path is divided into multiple processing blocks, determines the volume of the processing block, and the material being removed according to the workpiece
Volume, the loss of electrode described in the volume compensation of the loss value of the electrode and the processing block.
Another aspect of the present invention is to provide a kind of galvano-cautery processing method.The galvano-cautery processing method includes step
Suddenly：Driving electrodes are relative to workpiece motion s；Voltage is provided and electrolyte comes according to processing between the electrode and the workpiece
Process the workpiece to one, path, one machined layer of machined layer；It is determined that processing the work after one or more machined layers
The loss value of the volume for the material that part is removed by the electrode and the electrode；By one or more machined layers then along institute
State machining path and be divided into multiple processing blocks；Determine the volume of the processing block；And the material being removed according to the workpiece
The loss of electrode described in the volume compensation of volume, the loss value of the electrode and the processing block.
Damage of the volume for the material that the galvano-cautery system of processing and processing method of the present invention is removed according to workpiece to electrode
Consumption is compensated, and the precision of this compensation is higher.
Brief description of the drawings
By being described with reference to accompanying drawing for embodiments of the present invention, the present invention may be better understood, in accompanying drawing
In：
Fig. 1 show the schematic diagram of one embodiment of galvano-cautery system of processing of the present invention；
Fig. 2 show the schematic diagram of the local one embodiment of workpiece of the present invention；
Fig. 3 show the schematic diagram of one embodiment of machining path of the present invention；
Fig. 4 show the control device control operation device of galvano-cautery system of processing of the present invention and one embodiment of power supply
Schematic diagram；
Fig. 5 show the flow chart of one embodiment of galvano-cautery processing method of the present invention.
Embodiment
Unless otherwise defined, technical term or scientific terminology used herein should be in art of the present invention and had
The ordinary meaning that the personage of general technical ability is understood.Used in present patent application specification and claims " the
One " " the second " and similar word are not offered as any order, quantity or importance, and are used only to distinguish different groups
Into part.The similar word such as " comprising " or "comprising" means to appear in the element or thing before " comprising " or "comprising"
Part covers the element or object that appear in " comprising " or "comprising" presented hereinafter and its equivalent, it is not excluded that other elements or
Person's object.The similar word such as " connection " or " connected " is not limited to physics or machinery connection, but can wrap
Electrical connection is included, it is either directly or indirect.
Fig. 1 show the schematic diagram of the galvano-cautery system of processing 1 of one embodiment.Galvano-cautery system of processing 1 can be used to add
Work jet blade, aerospace components, turbine components, aeroengine, impeller other can be processed by galvano-cautery
Device.In galvano-cautery processing, material is removed from metallic conduction workpiece by electric spark or electric arc and forms expected shape.
In the present embodiment, galvano-cautery system of processing 1 removes material formation from workpiece 20 with being used for one machined layer of a machined layer and expected
Structure.Galvano-cautery system of processing 1 includes control device 10, operation device 11, power supply 14, electrolyte supply device 15 and electrode
16。
Operation device 11 is used for relative to the traveling electrode 16 of workpiece 20.Present patent application specification and claim
" movement " used in book can not only refer to be translated along one or more linear axis, can also be referred to and be rotated along one or more rotary shafts.
In certain embodiments, operation device 11 includes lathe, and lathe includes servomechanism installation, for example, servomotor and spindle motor.Electricity
Pole 16 is installed on operation device 11 to carry out galvano-cautery processing.Servomotor can driving electrodes 16 and/or workpiece 20 with setting
Speed and path relative motion, and spindle motor driving electrodes 16 and/or workpiece 20 are with the rotational speed of setting.
In one embodiment, workpiece 20 is processed with three axis machining method.Wherein, electrode 16 is straight along three relative to workpiece 20
Bobbin, for example, X-axis, Y-axis and Z axis, mobile.In another embodiment, workpiece 20 is processed with five-axis robot method.Wherein, electrode
16 relative to workpiece 20 along three linear axis, for example, X-axis, Y-axis and Z axis, and two rotary shafts, for example, A axles around X-axis,
B axle around Y-axis and/or the C axles around Z axis, it is mobile.In another embodiment, the opposite piece 20 of electrode 16 is four axial directions
Or the axle of more than five is moved up.In this way, by the removable three-dimensional machined layer of Multi-axis Machining method electrode 16, the three-dimensional plus
Work layer does not extend in one plane.
In one embodiment, the transfixion of workpiece 20, electrode 16 is moved.In another embodiment, the transfixion of electrode 16,
Workpiece 20 is moved.In a further embodiment, electrode 16 and workpiece 20 are moved.Operation device 11 is used in one or more axles
Move up electrode 16 and the travelling workpiece 20 on one or more axial directions.For example, in five-axis robot, electrode 16 is along Y-axis
Moved with Z axis, and workpiece 20 is moved along X-axis and rotated along B axle and C axles.Example is used only to explanation, however it is not limited to this.
Electrode 16 is used for processing workpiece 20.In the illustrated embodiment, electrode 16 includes the cross section of tubulose, implements another
In example, electrode 16 can have triangle, rectangle or polygonal cross section.
Power supply 14 is used for exciting electrode 16 and workpiece 20 is opposite polarity.In this embodiment, power supply 14 includes direct current
Impulse generator（It is not shown）.Electrode 16 and workpiece 20 are connected to the positive pole and negative pole of power supply 14.In one embodiment,
Electrode 16 is used as anode as negative electrode, workpiece 20.In another embodiment, electrode 16 is as anode, and workpiece 20 is used as negative electrode.
Power supply 14 provides voltage to electrode 16 and workpiece 20, when electrode 16 is close to workpiece 20, and the end of electrode 16 produces electric spark
Remove material of the surface of workpiece 20 close to the end of electrode 16.
Control device 10 includes digital control（Numerical Control, NC）Or computer numerical control (CNC)（Computer
Numerical Control, CNC）Device.In the present embodiment, control device 10 includes computer numerical control device 12 and electricity is rotten
Lose control device 13.Computer numerical control device 12 includes sequencing or pre-programmed instruction, and the instruction is based on computer aided manufacturing
Help design（Computer-Aided Design, CAD）And/or computer-aided manufacturing（Computer-Aided
Manufacturing,CAM）In the description of workpiece 20 is set.Computer numerical control device 12 is connected to operation device 11, according to
Specific running parameter, for example, feed rate, shaft position or speed of mainshaft etc., the driving electrodes 16 of control operation device 11.Another
In one embodiment, the instruction and/or user's input that the processing of computer numerical control device 12 is received carry out the He of control operation device 11
Electrode 16.In one embodiment, computer numerical control device 12 may include central processing unit（Central Processing Unit,
CPU）, communication unit and storage device, for example, read-only storage（Read Only Memory, ROM）And/or random access memory
（Random Access Memory, RAM）.
Galvano-cautery control device 13 is connected to power supply 14, to monitor the state of power supply 14.In one embodiment, galvano-cautery
Control device 13 includes one or more sensors（It is not shown）, for example, voltage and/or current measurement circuit monitor electrode 16
The state of voltage in gap and/or electric current between workpiece 20.Sensor can be arranged at power supply 14 or independent placement.
In one embodiment, galvano-cautery control device 13 includes microprocessor or other computing devices, time set, voltage comparator device
And/or data storage device etc..In addition, galvano-cautery control device 13 be connected with computer numerical control device 12 control power supply 14 and
Operation device 11.
Electrolyte supply device 15 is used for providing electrolyte between electrode 16 and workpiece 20, electrolyte flow connection electrode
16 and workpiece 20.In one embodiment, electrolyte supply device 15 is connected to Computer Control Unit 12, from computer control
Device 12 receives instruction, and electrolyte is provided between electrode 16 and workpiece 20 according to instruction.Arrow 160 and 161 shows electrolyte
Flow direction.Electrolyte provides path to electric discharge, so as to produce electric spark between electrode 16 and workpiece 20.In galvano-cautery processing
During, power supply 14 provides pulse voltage between electrode 16 and workpiece 20, with carrying out one machined layer of a machined layer from workpiece
Material is removed on 20 and forms expected shape, while electrolyte washes away the material scaled off.
In the present embodiment, galvano-cautery system of processing 1 is included at least one touched to power pole 16 in cutting die formula and touched
Hair point.In the illustrated embodiment, the first trigger point 18 and the second trigger point 19 are located at around workpiece 20, for example, respectively in work
The front and back of part 20.Before and after one or more machined layers are processed in galvano-cautery, Computer Control Unit 12 is controlled
Operation device 11 carrys out driving electrodes 16 and touches the first trigger point 18 and the second trigger point 19 respectively, to determine the length of electrode 16.
In another embodiment, only one of which trigger point 18 or 19 is used.In one embodiment, reference substance（It is not shown）, for example, work
The fixture of part 20, can be used as trigger point 18,19.In another embodiment, a position of workpiece 20 can as trigger point 18,
19。
Fig. 2 show the local schematic diagram of the workpiece 20 of one embodiment.Multiple machined layers 22 are formed after removing and are expected
Workpiece 20 shape.Only for the purpose illustrated, machined layer 22 is separated by lines each other, but in actual work
On part 20, those lines are not present.Process workpiece 20 to 16 1, the electrode machined layer of machined layer one.At least one machined layer 22
For three-dimensional machined layer.In the present embodiment, each machined layer 22 is all three-dimensional, and it extends not in approximately the same plane, such as
This can form the three-dimensional geometry of complexity on workpiece 20.In the illustrated embodiment, workpiece 20 is discoid, and machined layer
22 be arch.In another embodiment, machined layer 22 can be other 3D shapes.In one embodiment, machined layer 22
It is of similar shape and volume.In another embodiment, machined layer 22 has different shape and volume.Each machined layer 22
Multiple processing blocks 24 are divided into along machining path.Electrode 16 is processed along the processing block of processing block one of machining path one
Machined layer 22.
Fig. 3 show the schematic diagram of the machining path 30 of one embodiment.Referring to figs. 2 and 3 machining path 30 is electrode
The path walked during the material of 16 removal workpiece 20.In one embodiment, operation device 11 moves electricity along machining path 30
Pole 16 removes the material of machined layer 22.Computer Control Unit 12 sets some add according to the shape for the workpiece 20 for expecting to obtain
Work path 30.In one embodiment, machining path 30 sets and stored in the memory unit before processing workpiece 20.Processing
Path 30 is divided into multiple processing sections 32, and processing sections 32 are straight line, and machining path 30 is curve.The curvature of machining path 30 is larger
Part be divided into the shorter processing sections 32 of length, the less part of the curvature of machining path 30 is divided into the longer processing sections of length
32, the length of processing sections 32 is equal not to the utmost.The machining path 30 of long bending is so formed with some short straightways.Processing sections
32 also set in Computer Control Unit 12.Electrode 16 moves to remove corresponding processing block 24 along processing sections 32.Processing
The number of section 32 is equal to the number of processing block 24.
Fig. 4 show the control operation device 11 of control device 10 and power supply of the galvano-cautery system of processing 1 of one embodiment
14 schematic diagram.With reference to Fig. 1 is referred to, control device 10 is used for the processing road that control operation device 11 is set according to control device 10
Footpath traveling electrode 16 processes workpiece 20 with carrying out one machined layer of a machined layer.Control device 10 be used for determining to process one or
The loss value of the volume for the material that workpiece 20 is removed by electrode 16 and electrode 16 after multiple machined layers.Control device 10 is used for connecing
The one or more machined layers are divided into multiple processing blocks along machining path, and determine the volume of processing block.Control device
10 are used for the damage of the volume compensation electrode 16 according to the volume of the removed material of workpiece 20, the loss value of electrode 16 and processing block
Consumption.
The Computer Control Unit 12 of control device 10 includes numerical control kernel 120 and programmable logic controller (PLC) 122（Or can
Program machine tool controller）.Numerical control kernel 120 carrys out control operation device 11 with the cooperation of programmable logic controller (PLC) 122, and programmable
Logic controller 122 is connected with galvano-cautery control device 13.In the present embodiment, numerical control kernel 120 includes main program module 124
With loss correction module 126.Main program module 124 includes instruction, for example, machining path etc..In the present embodiment, main program mould
Block 124 determines that electrode 16 is used for the position for processing end processed according to machining path（X, y, z）.Process the position of end（X,
Y, z）For the initial position before compensation for electrode wear.
The length of electrode 16 before and after correction module 126 is used for determining to process in cutting die formula is lost, and right
It is connected to complete certain behaviour with main program module 124, programmable logic controller (PLC) 122 and galvano-cautery controller 13 in cutting die formula
Make.In one embodiment, loss correction module 126 can be embedded in main program module 124.Programmable logic controller (PLC) 122 is held
Some operations related to sequential of row, for example, tool changing, starting or stoping motor, the confession changed workpiece, be turned on and off electrolyte
Give.
Referring to figs. 1 to Fig. 4, in an embodiment, main program module 124 sends the initial voltage and/or electricity of galvano-cautery processing
Parameter is flowed, power supply 14 is given by programmable logic controller (PLC) 122 and galvano-cautery control device 13.Meanwhile, main program module 124 is matched somebody with somebody
Close programmable logic controller (PLC) 122 and move to the top of the first trigger point 18 according to the instruction driving electrodes 16 of control operation device 11.
Galvano-cautery system of processing 1 enters to cutting die formula.Loss correction module 126 send to the initial voltage of cutting die formula and/
Or current parameters are to power supply 14.In certain embodiments, to cutting die formula it is rotten that initial voltage and/or the value of current parameters is less than electricity
The initial voltage of processing and/or the value of current parameters are lost, to avoid to damaging electrode 16 in cutting die formula.Then, electrode 16 is gradually
Move down until producing short circuit between the first trigger point 18 of touching, such trigger point 18 of electrode 16 and first.Galvano-cautery is controlled
Device 13, which detects short-circuit voltage and produces short-circuit trigger signal, gives loss correction module 126.Correction module 126 and main journey is lost
Sequence module 124 and the connection of programmable logic controller (PLC) 122, which coordinate, comes promptly withdrawn electrode 16 of control operation device 11, and loss
Correction module 126 calculates the length of electrode 16.In one embodiment, the calculating of the length of electrode 16 and electrode 16 are recalled simultaneously
And carry out in real time.
After completing to knife, initial voltage and/or current parameters during normal process are stored.Main program module 124 coordinates
The driving electrodes 16 of 122 control operation device of programmable logic controller (PLC) 11 start according to the machining path in main program module 124
Process the first machined layer of workpiece 20.In certain embodiments, in galvano-cautery processing voltage and/or the value of current parameters and electricity
The initial voltage of corrosion processing and/or the value of current parameters are identical or different, the adjustable voltage of galvano-cautery control device 13 and/or
The value of current parameters.The shape of voltage and/or electric current in processing between the monitoring electrode 16 of galvano-cautery control device 13 and workpiece 20
State.
Main program module 124 determines the volume of the material for the first machined layer that electrode 16 is removed from workpiece 20.Implement one
Example in, main program module 124 calculate processing the first machined layer before workpiece 20 initial volume and processing the first machined layer it
The volume of workpiece 20 afterwards, by calculating the body that the difference of the front and rear volume of processing determines the material of the first removed machined layer
Product.In one embodiment, the numerical control machining simulation system in main program module 124（It is not shown）, such as simulation software
VERICUT, calculates the volume and the volume of the material removed of workpiece 20 before and after processing, and numerical control machining simulation system can emulate workpiece
The process of processing.The volume of the workpiece 20 before and after processing is calculated according to the shape of workpiece 20.In another embodiment, main program
Module 124 includes the parameter related to the volume of the material of removal, for example, electrode shape, electrode material, workpiece material, those
Parameter can be stored in the memory of main program module 124 or energetically update or measure.Main program module 124 is joined according to those
Number calculates the volume of the material removed.
In one embodiment, process after the first machined layer, the rapid trigger point of traveling electrode 16 to the second of operation device 11
19, or it is moved to when only one of which trigger point the first trigger point 18.Galvano-cautery system of processing 1 is again introduced into cutting die formula.Class
Be similar to before processing to cutting die formula, loss correction module 126 is connected with main program module 124 and programmable logic controller (PLC) 122
Coordinate and carry out the rapid withdrawn electrode 16 of control operation device 11, and calculate the length for processing electrode 16 after the first machined layer.Enter one
Step, loss correction module 126 determines to process the loss value of electrode 16 after the first machined layer.Calculate before the first machined layer of processing
The difference of the length of electrode 16 afterwards obtains loss value.The length that the loss value of electrode 16 consumes for electrode 16 in processing.
The machining path 30 that main program module 124 splits each machined layer 22 is multiple processing sections 32, as shown in figure 3, and
Each machined layer 22 is divided into multiple processing blocks 24 according to processing sections 32, as shown in Figure 4.Electrode 16 is along processing sections in processing
32 move to remove the material of processing block 24.Before the second machined layer is processed, main program module 124 determines the second machined layer
The volume of each processing block 24.In one embodiment, the volume of at least two processing blocks 24 is different in each machined layer, corresponding
The loss value and offset of electrode 16 are also different.Similar to the method for the volume for calculating the material that the first machined layer is removed, main journey
Sequence module 124 calculates the volume of the processing block 24 of the second machined layer.In one embodiment, processing block 24 and its volume are added by numerical control
Work analogue system is determined.
Computer Control Unit 12 is mended according to the volume of the volume of the material of removal, the loss value of electrode 16 and processing block 24
Repay the loss of electrode 16.In one embodiment, main program module 124 is moved according to the loss value and the workpiece 20 of electrode 16
The volume of the material removed determines volumetric wear rate, that is, the loss length of electrode 16 when removing the material of unit volume.Main program mould
Block 124 further determines the benefit that compensating electrode 16 is lost during processing processing block 24 according to volumetric wear rate and the volume of processing block 24
Repay value.Main program module 124 by multiplication volumetric wear rate and the volume of processing block 24 obtain to should processing block 24 electrode
16 loss value, and electrode 16 needs the value compensated when determining to process the processing block 24 according to the loss value of the electrode 16.
In another embodiment, main program module 124 determines that the volume of processing block 24 accounts for the removed material of workpiece 20
Volume ratio, i.e., in this implementation, the volume of processing block 24 accounts for the ratio of the volume of the first processing layer material.Main program mould
The compensation that compensating electrode is lost when block 124 further determines to process the processing block 24 according to the loss value of the ratio and electrode 16
Value.Main program module 124 is corresponding with the loss value acquisition for processing electrode 16 after the first machined layer by the ratio of multiplication volume
In the loss value of the electrode 16 of processing block 24, and when determining to process the processing block 24 according to the loss value, electrode 16 needs what is compensated
Value.The accuracy of compensation can be improved by above-mentioned volume compensation method.
Main program module 124 according to offset amendment electrode 16 processing end position（X, y, z）.In an embodiment
In, the traveling electrode 16 on the length direction of electrode 16 of operation device 11, and length direction benefit of the main program module 124 along electrode
Repay the loss of electrode 16.An axle of the electrode 16 in X-axis, Y-axis and Z axis is upwardly extended and moved.Main program module 124 is corrected
Coordinate value of the position of the processing end of electrode 16 on the axle.For example, electrode extends along Z axis, and moved along Y-axis and Z axis, work
Part 20 is moved along X-axis, B axle, C axles, now the coordinate according to the position of the processing end of offset amendment electrode 16 on Z axis
Value.The revised position of processing end is represented by（X, y, z+ Δ z）, wherein Δ z is correction value.Now, Δ z absolute value
Equal to the loss value of electrode 16.Main program module 124 coordinates the control operation device 11 of programmable logic controller (PLC) 122 according to amendment
Position driving electrodes 16 afterwards, the loss of such compensating electrode 16.One coordinate value of amendment is only needed to complete in this embodiment
Compensation.
In another embodiment, electrode 16 favours linear axis and moved along linear axis and rotary shaft, such electrode 16
Coordinate value of the position in multiple reference axis of processing end need to be modified according to offset.For example, the position of processing end
Put（X, y, z）Be modified to according to offset (x ', y ', z ').
In certain embodiments, galvano-cautery system of processing 1 can each two or multiple machined layers calculate the damage of one-time electrode 16
Consumption value.Galvano-cautery system of processing 1 calculates the volume for the material being removed after two or more machined layer processing, and according to loss
The loss of the volume compensation electrode 16 of value, the volume for removing material and processing block.Compensation method herein is similar to noted earlier
Each machined layer calculate one-time electrode 16 loss value compensation method.
Fig. 5 show the flow chart of the galvano-cautery processing method 50 of one embodiment.Galvano-cautery processing method is rotten with incoming call
Erosion processing workpiece forms expected shape.In 501, driving electrodes are relative to workpiece motion s.Electrode can be more relative to workpiece edge
Individual axle does the movement of three-dimensional, and multiple axles include one or more linear axis and one or more rotary shafts.In one embodiment,
The one of both movement of electrode and workpiece, and another transfixion.In another embodiment, electrode and workpiece are moved.
Traveling electrode and the travelling workpiece on one or more axial directions on one or more axial directions.For example, moving electricity along Y-axis and Z axis
Pole, and along X-axis, B axle and C axle travelling workpieces, so remove three-dimensional machined layer.Electrode and/or workpiece can be driven by operation device
It is dynamic.
Come in 503 there is provided voltage and electrolyte between electrode and workpiece according to one machined layer one of machining path
Process workpiece to machined layer.When electrode is close to workpiece, electrode end produces electric spark, and electric spark is transmitted by electrolyte, comes
Remove the material of workpiece.Machining path and machined layer are set according to the estimated shape being processed into of workpiece.At least one machined layer
It is three-dimensional machined layer, the machined layer is not in one plane.In one embodiment, some machined layers are of similar shape.
In another embodiment, some machined layers are differed.
In 505, it is determined that processing the volume and electrode of the material that workpiece is removed by electrode after one or more machined layers
Loss value.The volume of the material of removal can be determined by numerical control machining simulation system.Numerical control machining simulation system can be used to really
Determine machining path, machined layer etc..In one embodiment, the workpiece before and after the one or more machined layers of processing is calculated respectively
Volume.The volume of the removed material of workpiece is the difference of workpiece volume before and after processing.In one embodiment, connect by electrode
One or more trigger points are touched to obtain the length of the electrode before and after processing one or more machined layers.The loss of electrode
It is worth for the difference of electrode length before and after processing.In another embodiment, laser spots are as a reference point.When the processing end of electrode
When being contacted with laser spots, the position that electrode is installed on the installation end of operation device is stored.According to electrode installation end before and after processing
Position calculate electrode loss value.In another embodiment, supersonic testing method or other method can be used to obtain the damage of electrode
Consumption value.In one embodiment, the loss value of one-time electrode is calculated after each machined layer processing.In another embodiment, often
The loss value of one-time electrode is calculated after the processing of two or more machined layers.
In 507, one or more machined layers then are divided into multiple processing blocks along machining path.Division processing
Path is multiple processing sections, and processes processing block along processing sections traveling electrode.In one embodiment, processing sections are straight line,
Machining path is curve.The number of processing sections is equal to the number of processing block.The processing of one processing block, one processing block is each to be added
Work layer.Processing block can be determined by Numerical Control Machining Simulation.
In 509, the volume of processing block is determined.In this embodiment, the body of at least two processing blocks of a machined layer
Product.The volume of processing block can be determined by Numerical Control Machining Simulation.
In 511, the volume compensation electrode of the volume of material, the loss value of electrode and the processing block that are removed according to workpiece
Loss.In one embodiment, the volume for the material being removed according to the loss value and workpiece of electrode determines volumetric wear rate, and
The offset that compensating electrode is lost during processing processing block is determined according to volumetric wear rate and the volume of processing block.It is sharp in process
With the loss of offset compensating electrode.In another embodiment, determine that the volume of processing block accounts for the body of the removed material of workpiece
Long-pending ratio, and the offset that compensating electrode is lost during processing processing block is determined according to the loss value of ratio and electrode.It is processed
The loss of offset compensating electrode is utilized in journey.
In one embodiment, the traveling electrode on the length direction of electrode, and the loss of compensating electrode along its length.
In another embodiment, electrode incline is moved in linear axis and along linear axis and rotary shaft, and the position of such electrode machining end exists
Coordinate value on multiple axles is correspondingly corrected according to offset.
The action of method 50 is illustrated in the form of functional module, is acted in the sequencing and module of the module shown in Fig. 5
Division be not limited to diagram embodiment.For example, module can be carried out in a different order；Action in one module can
With with the combination of actions in another or multiple modules, or be split as multiple modules.For example, the action in module 505 is detachable
Into two modules, the volume of the material of removal is calculated in one of module, the loss value of electrode is calculated in another module.
In one embodiment, the volume of the material of removal can be calculated in the incipient stage of method 50.Action in module 507 and 509
It can be performed in the incipient stage of method 50.The volume for removing volume, machining path, processing block and the processing block of material can be in electrode
Determine and store before processing workpiece.
Although with reference to specific embodiment, the present invention is described, it will be appreciated by those skilled in the art that
Can be so that many modifications may be made and modification to the present invention.It is therefore contemplated that, being intended to of claims is covered in the present invention
All such modifications and modification in true spirit and scope.
Claims (16)
1. a kind of galvano-cautery system of processing, it is characterised in that it includes：
Electrode, for processing workpiece；
Power supply, for encouraging the electrode and the workpiece to be opposite polarity；
Electrolyte supply device, for providing electrolyte between the electrode and the workpiece；
Operation device, for moving the electrode relative to the workpiece；And
Control device, is used for：
The machining path for controlling the operation device to be set according to the control device moves the electrode come a machined layer one
The workpiece is processed to individual machined layer,
It is determined that processing after one or more machined layers the volume for the material that the workpiece is removed by the electrode and described
The loss value of electrode,
Then one or more machined layers are divided into multiple processing blocks along the machining path,
The volume of the processing block is determined, and
According to the volume compensation of the volume of the removed material of the workpiece, the loss value of the electrode and the processing block
The loss of electrode,
Wherein, the control device is used for determining that the volume of the processing block accounts for the ratio of the volume of the removed material of the workpiece
Example, and the compensation of the export license is compensated when determining according to the loss value of the ratio and the electrode and process the processing block
Value.
2. galvano-cautery system of processing as claimed in claim 1, it is characterised in that：At least one described machined layer adds for three-dimensional
Work layer.
3. galvano-cautery system of processing as claimed in claim 1, it is characterised in that：The operation device is used in the electrode
The mobile electrode on length direction, and the control device is used for compensating the damage of the electrode along the length direction of the electrode
Consumption.
4. galvano-cautery system of processing as claimed in claim 1, it is characterised in that：The operation device is used for one or more
Axle moves up the electrode and moves up the workpiece in one or more axles.
5. galvano-cautery system of processing as claimed in claim 1, it is characterised in that：Described at least two of one machined layer
The volume of processing block.
6. galvano-cautery system of processing as claimed in claim 1, it is characterised in that：The machining path is divided into multiple processing
Section, the number of the processing sections is equal to the number of the processing block.
7. galvano-cautery system of processing as claimed in claim 6, it is characterised in that：The processing sections are straight line, and the processing
Path is curve.
8. galvano-cautery system of processing as claimed in claim 1, it is characterised in that：The control device is used for calculating processing respectively
The volume of the workpiece before and after one or more of machined layers, and calculate the body of the removed material of the workpiece
Product, it is the difference of the volume of the front and rear workpiece of processing.
9. a kind of galvano-cautery processing method, it is characterised in that it includes step：
Driving electrodes are relative to workpiece motion s；
Voltage is provided and electrolyte comes to be processed according to the machined layer one of machining path one between the electrode and the workpiece
The layer ground processing workpiece；
It is determined that processing after one or more machined layers the volume for the material that the workpiece is removed by the electrode and described
The loss value of electrode；
Then one or more machined layers are divided into multiple processing blocks along the machining path；
Determine the volume of the processing block；And
According to the volume compensation of the volume of the removed material of the workpiece, the loss value of the electrode and the processing block
The loss of electrode,
Wherein, the step of loss of the compensation electrode further comprises：
Determine that the volume of the processing block accounts for the ratio of the volume of the removed material of the workpiece；
The compensation of the export license is compensated when determining according to the loss value of the ratio and the electrode and process the processing block
Value；And
The loss of the electrode is compensated in process using the offset.
10. galvano-cautery processing method as claimed in claim 9, it is characterised in that：At least one described machined layer is three-dimensional
Machined layer.
11. galvano-cautery processing method as claimed in claim 9, it is characterised in that：The driving electrodes are relative to workpiece motion s
The step of be included on the length direction of the electrode the mobile electrode, and the step of loss of the compensation electrode is wrapped
Include the loss that the electrode is compensated along the length direction of the electrode.
12. galvano-cautery processing method as claimed in claim 9, it is characterised in that：The driving electrodes are relative to workpiece motion s
The step of be included in one or more axles and move up the electrode and move up the workpiece in one or more axles.
13. galvano-cautery processing method as claimed in claim 9, it is characterised in that：At least two institutes of one machined layer
State the volume of processing block.
14. galvano-cautery processing method as claimed in claim 9, it is characterised in that：The galvano-cautery processing method is further wrapped
It is multiple processing sections to include the segmentation machining path, and moves the electrode to process the processing block along the processing sections,
The number of the processing sections is equal to the number of the processing block.
15. galvano-cautery processing method as claimed in claim 14, it is characterised in that：The processing sections be straight line, and it is described plus
Work path is curve.
16. galvano-cautery processing method as claimed in claim 9, it is characterised in that：The determination processes one or more institutes
The step of stating the loss value of the volume for the material that the workpiece is removed by the electrode and the electrode after machined layer includes difference
The volume of the workpiece before and after processing one or more of machined layers is calculated, and calculates what the workpiece was removed
The volume of material, it is the difference of the volume of the front and rear workpiece of processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310419535.8A CN104439572B (en) | 2013-09-13 | 2013-09-13 | Galvano-cautery system of processing and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310419535.8A CN104439572B (en) | 2013-09-13 | 2013-09-13 | Galvano-cautery system of processing and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104439572A CN104439572A (en) | 2015-03-25 |
| CN104439572B true CN104439572B (en) | 2017-09-12 |
Family
ID=52886754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310419535.8A Active CN104439572B (en) | 2013-09-13 | 2013-09-13 | Galvano-cautery system of processing and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104439572B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI571338B (en) * | 2015-12-10 | 2017-02-21 | 國立高雄應用科技大學 | Electrical discharge machine equipped with trimming tools |
| TWI632968B (en) * | 2017-11-30 | 2018-08-21 | 財團法人金屬工業研究發展中心 | Prediction method of electrical discharge machining accuracy |
| CN109202192B (en) * | 2018-10-31 | 2019-09-17 | 清华大学 | Fine electric spark servo scanning machined parameters preferred method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5919380A (en) * | 1995-02-27 | 1999-07-06 | Mitsubishi Denki Kabushiki Kaisha | Three-dimensional electrical discharge machining method and apparatus utilizing NC control |
| CN1397399A (en) * | 2002-06-27 | 2003-02-19 | 苏州中特机电科技有限公司 | Method for efficient discharge milling with hollow long electrode |
| CN102017236A (en) * | 2005-03-31 | 2011-04-13 | 美蓓亚株式会社 | Electrode tool and method of manufacturing same |
| US8236162B2 (en) * | 2008-09-30 | 2012-08-07 | General Electric Company | Electroerosion machining system and method for electrode wear compensation |
| CN103234497A (en) * | 2013-04-27 | 2013-08-07 | 上海交通大学 | Relative volume loss ratio measuring method based on cone electrode electrical discharge milling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI277846B (en) * | 2004-12-23 | 2007-04-01 | Ind Tech Res Inst | Method of 3D electric discharge machining and program generating apparatus therefor |
-
2013
- 2013-09-13 CN CN201310419535.8A patent/CN104439572B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5919380A (en) * | 1995-02-27 | 1999-07-06 | Mitsubishi Denki Kabushiki Kaisha | Three-dimensional electrical discharge machining method and apparatus utilizing NC control |
| CN1397399A (en) * | 2002-06-27 | 2003-02-19 | 苏州中特机电科技有限公司 | Method for efficient discharge milling with hollow long electrode |
| CN102017236A (en) * | 2005-03-31 | 2011-04-13 | 美蓓亚株式会社 | Electrode tool and method of manufacturing same |
| US8236162B2 (en) * | 2008-09-30 | 2012-08-07 | General Electric Company | Electroerosion machining system and method for electrode wear compensation |
| CN103234497A (en) * | 2013-04-27 | 2013-08-07 | 上海交通大学 | Relative volume loss ratio measuring method based on cone electrode electrical discharge milling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104439572A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101893873B (en) | Method and device for generating control data for controlling cutter arranged on machine tool | |
| CN108581108B (en) | A kind of electric discharging machining electrode dressing method in place | |
| Zhang et al. | Geometric prediction of conic tool in micro-EDM milling with fix-length compensation using simulation | |
| Yan et al. | Process planning and electrode wear compensation for 3D micro-EDM | |
| US8236162B2 (en) | Electroerosion machining system and method for electrode wear compensation | |
| CN105629884A (en) | Numerical controller for retraction control | |
| CN104439572B (en) | Galvano-cautery system of processing and method | |
| JP6195659B2 (en) | Machining program generation method, path generation device, and electric discharge machine | |
| Ge et al. | Large allowance electrochemical turning of revolving parts using a universal cylindrical electrode | |
| JP5771212B2 (en) | Tool compensation method and device | |
| US10007251B2 (en) | Machine tool control device and machine tool | |
| Sanchez et al. | Electrical discharge truing of metal-bonded CBN wheels using single-point electrode | |
| Khan et al. | Modeling of wire electrical discharge machining of alloy steel (HCHCr) | |
| Chang et al. | Parametric curve machining of a CNC milling EDM | |
| JP6055411B2 (en) | Machining system and method | |
| JP5908552B1 (en) | Machine tool controller | |
| Skoczypiec et al. | Computer simulation and experimental study of a sequential electrochemical-electrodischarge machining process | |
| CN204867696U (en) | Novel wire -electrode cutting | |
| Hong et al. | Effects of Process Parameters on Cutting Speed in Wire-Cut EDM of 9CrSi Tool Steel | |
| Garg et al. | A review of tool electrode designs for sinking EDM process | |
| Miclosina et al. | On the Milling Process Simulation of an Injection Mold Part | |
| JP3547618B2 (en) | Computer-readable recording medium storing electric discharge machining apparatus, electric discharge machining method, and program for causing computer to execute electric discharge machining method | |
| JP2631907B2 (en) | Electric discharge machining method and apparatus for correcting electric discharge gap based on abnormal electric discharge position | |
| Pop et al. | REVIEW OF THE NONCONVENTIONAL MANUFACTURING WORK PREPARATION FOR WIRE EDM MACHINING | |
| JP2010005774A (en) | Combined machining apparatus and combined machining method for combiningly performing waterjet machining and wire cut discharge machining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |