CN209077979U - Electrode assembly in electrical process machine and electrical process machine - Google Patents
Electrode assembly in electrical process machine and electrical process machine Download PDFInfo
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Abstract
This application involves electric machining machinery field, the electrode assembly in electrical process machine and electrical process machine is provided.The electrode assembly of electrical process machine includes C axis mechanism and B axle mechanism.B axle mechanism is connected to C axis mechanism.C axis mechanism includes driving device, and C axis mechanism is driven to run for driving device so that B axle mechanism is rotated around the rotation axis of C axis mechanism.B axle mechanism includes: the rotating mechanism that can be immersed in electric spark processing liquid, and rotating mechanism can rotate and be connected to around its axis of rotation C axis mechanism, the movement of C axis mechanism is enabled to be transmitted to rotating mechanism；And it is mounted on the machined electrode on rotating mechanism.The application also provides the processing method of a kind of electrical process machine using above-mentioned electrode assembly and the electrical process machine.The advantageous effects of the application are that structure is simple, provide machining accuracy and processing efficiency.
Description
Technical field
This application involves electric machining machinery field, it is particularly suitable for the processing technique field with three-dimension curved surface workpiece, is had
The electrode assembly and processing method being related to body in electrical process machine and electrical process machine.
Background technique
When the three-dimension curved surface to workpiece carries out electric machining, existing lathe generally requires Work turning table and workpiece is driven to participate in
Linkage, the revolving speed that will lead to linkage when workpiece is heavier is relatively low, leads to the overall processing low efficiency of lathe.
Especially to the large-sized annulars such as gas turbine nozzle workpiece, (working position has three-dimensional special-shaped curved surface, tradition machinery
There is the workpiece of processing blind area in processing) electric machining when, such as blade-carrying dish-type workpiece, since structure is extremely complex plus
Work accessibility is poor, in addition the material for mostly using the difficulty of processing such as high temperature alloy high, traditional machining is difficult to realize more high-precision
The processing of degree.And existing lathe generally requires workbench and participates in linkage, there are problems that processing efficiency is low.Therefore, existing skill
Art is for large-scale, machined surface complexity workpiece, and machining accuracy is low.
Utility model content
In order to solve above-mentioned technical problem in the prior art, one aspect according to the present utility model provides a kind of electricity
The electrode assembly of machining tool, comprising:
C axis mechanism；And
B axle mechanism, the B axle mechanism are connected to the C axis mechanism；Wherein
The C axis mechanism includes:
Driving device, the C axis mechanism is driven to run for the driving device so that the B axle mechanism is around the C axis mechanism
Rotation axis rotation；
The B axle mechanism includes:
The rotating mechanism that can be immersed in electric spark processing liquid, the rotating mechanism can rotate simultaneously around its axis of rotation
It is connected to the C axis mechanism, the movement of the C axis mechanism is enabled to be transmitted to the rotating mechanism；And
The machined electrode being mounted on the rotating mechanism.
Preferably, based on the above technical solution, the C axis mechanism further include: connection frame；And revolution mandrel,
It is rotatably installed in the connection frame and including input, output end and the rotation axis.Wherein, the driving device
The input terminal of the revolution mandrel is connected to for driving the revolution mandrel to rotate around the rotation axis；The rotation
Mechanism is connected to the output end of the revolution mandrel.
Preferably, further including the detection dress for detecting the Angle Position of the revolution mandrel based on the above technical solution
It sets, so that the driving device turns round mandrel according to the data-driven of the Angle Position of the revolution mandrel detected；It is excellent
Selection of land, the detection device include angular encoder and angular encoder are fixed to the retention mechanism of the connection frame；It is preferred that
Ground, the retention mechanism include angular encoder fixed plate and angular encoder locking nut, the angular encoder fixed plate
It is fastened on the outer ring of the angular encoder, the inner ring of the angular encoder is carried out by the angular encoder locking nut
Axial locking.
Preferably, based on the above technical solution, the revolution mandrel and the rotating mechanism are arranged to described return
Turn mandrel the rotation axis perpendicular to and/or by the rotating mechanism the axis of rotation；And/or the driving
Device includes torque motor, and the output end of the torque motor is drivingly connected to the input terminal of the revolution mandrel.
Preferably, further including space mechanism based on the above technical solution, the space mechanism is fixedly provided in
Between the C axis mechanism and the rotating mechanism, so that having spacing between the C axis mechanism and the rotating mechanism.
Preferably, based on the above technical solution, the driving device further includes motor fixing seat and shaft coupling,
In, the motor fixing seat is fixed on the connection frame and is fixed on the torque motor wherein, and the shaft coupling will be described
The output end of torque motor is connected to the input terminal of the revolution mandrel.
Preferably, based on the above technical solution, the space mechanism include so that the revolution mandrel with it is described
With the hollow connector sleeve of spacing between rotating mechanism.Preferably, the space mechanism further includes outside framework oil seal, the skeleton
The bottom outside of the connection frame is arranged in oil sealing, enters in the connection frame to avoid the electric spark processing liquid.
Preferably, further include the turntable bearing being mounted in the connection frame based on the above technical solution, so that
The output end of the revolution mandrel can be rotated to support in the turntable bearing.Preferably, the revolution mandrel can
At least ± 60 ° of revolution.It is further preferred that the angle of revolution of the revolution mandrel is less than ± 180 °.
Preferably, based on the above technical solution, the rotating mechanism is used for using the existing of electrical process machine
The Work turning table of installation and rotational workpieces.Preferably, the rotating mechanism can prevent electric spark processing liquid from entering wherein.
Second aspect according to the present utility model, provide it is a kind of by adopting the above technical scheme in electrode assembly electric machining
Lathe, the electrical process machine include the electrode assembly, lathe bed and at least one head of a bed being located on the lathe bed, described
Each head of a bed includes X-axis main body, Y-axis main body and Z axis main body, and the X-axis main body, Y-axis main body and Z axis main body are respectively arranged with drive
Dynamic device, guide rail, ram, wherein.The X-axis main body, Y-axis main body and Z axis main body are associated with one another, enable the X-axis main body
Enough to move back and forth along the x axis, the Y-axis main body can move back and forth along the y axis, and the Z axis main body can be along Z-direction
It moves back and forth.The connection frame of the electrode assembly is fixedly connected to the Z axis main body, enables the connection frame and institute
Z axis main body is stated to move together.
Preferably, based on the above technical solution, the C axis mechanism, the B axle mechanism, the Y-axis main body and institute
It states Z axis main body and is arranged so that the rotation axis of the C axis mechanism is parallel with the Z-direction of the Z axis main body, the B axle machine
The axis of rotation of structure can be parallel with the Y direction of Y-axis main body.
Preferably, further including the workbench for placing workpiece based on the above technical solution, the workbench has energy
The workpiece rotating part that enough axiss of rotation around the workbench rotate, the workpiece rotating part are used to workpiece being fixed on it
On, and turn round workpiece around the axis of rotation.Preferably, the workbench is arranged to horizontal positioned or vertical placement.
Preferably, based on the above technical solution, at least one described head of a bed includes being arranged around the workbench
The two or four head of a bed；And/or the machined electrode includes multiple electrodes.Preferably, any two in the multiple electrode
A electrode extends to opposite both direction respectively on the vertical plane of the axis of rotation perpendicular to the rotating mechanism, or
Vertically, or the direction that extends interlocks certain angle.
Preferably, based on the above technical solution, the head of a bed is in dynamic diplodocus door type structure, the Y-axis main body is in
Double base form is supported on the lathe bed, and the X-axis body abutment is in the Y-axis main body, and the Z axis body abutment is in institute
It states in X-axis main body, the structure that the Z axis main body is integrated with the connection frame；Or, the head of a bed is in ox head structure, the X-axis
Body abutment is on the lathe bed, and the Y-axis body abutment is in the X-axis main body, and the Z axis body abutment is in the Y-axis
In main body.
Preferably, based on the above technical solution, the rotating mechanism includes that the machined electrode is installed to it
On electrode holder.Preferably, the electrode holder includes 3R fixture or electrode connecting plate, and the machined electrode is locked by electrode
Tight nut is fixed to the electrode connecting plate.
The third aspect according to the present utility model provides the processing side of the electrical process machine in technical solution as described above
Method, including following procedure of processing:
C axis mechanism Zero calibration: workbench installs workpiece, and C axis mechanism is turned back to the axis of rotation and Y of ShiBZhou mechanism
The Y direction of shaft body is parallel, using this state as the zero point of C axis mechanism；
X-axis main body Zero calibration: X-axis main body is moved to so that the axis of rotation of B axle mechanism passes through the rotating shaft of workbench
Line, using this state as the zero point of X-axis main body；
Y-axis main body Zero calibration: the zero point of Y-axis main body crosses work table rotation using lathe coordinate system or by Y direction
Axis axes settings are zero point；
Preferably, the procedure of processing of the processing method further include:
B axle mechanism Zero calibration: the positioning table of ShiBZhou mechanism fixture is in parallel or plumbness with X-axis main body, with this
Zero point of the state as B axle mechanism；
Z axis main body Zero calibration: the zero point of Z axis main body is determined according to the position of workpiece surface；
Workbench Zero calibration: for the workpiece of revolving meber, after the completion of clamping workpiece, when according to work pieces process, benchmark
The location position dead-center position of face or reference line；
Determine the zero point of finished piece(s), based on this, control lathe processes workpiece；
According to need after a working position of the determining workbench processing multiple working positions of finished piece(s) of the size of workpiece requirement
The angle to be turned round；Preferably, it further comprises the steps of:
Workbench is turned round with workpiece and is positioned, and X, Y, Z axis main body and the linkage of B, C axis mechanism, which walk, to be carried out the screw-in of electrode and add
Work processes first working position, and electrode screws out, the angle that work table rotation requires, X, Y, Z axis main body and B, C axis mechanism
Linkage, which walks, again carries out the screw-in processing of electrode.
Advantage brought by these technical solutions will be enumerated in description according to the embodiment below.
Detailed description of the invention
Fig. 1 shows showing for the workpieces processing that can be typically applicable in using electrical process machine part according to the present utility model
It is intended to, Fig. 1 is the perspective view of blade-carrying dish-type workpiece；
Fig. 2 is the structural schematic diagram of the first embodiment of electrical process machine part according to the present utility model, wherein includes
Electrode assembly according to the present utility model；
Fig. 3 A-C shows the schematic diagram of electrode assembly according to the present utility model, wherein Fig. 3 A is the electrode after assembling
The cross-sectional view of component, Fig. 3 B are the cross-sectional views that the part of electrode assembly decomposes, and Fig. 3 C is the part assembling of electrode assembly
Perspective view；
Fig. 4 is the structural schematic diagram of the second embodiment of electrical process machine part according to the present utility model, wherein includes
Electrode assembly according to the present utility model；
Fig. 5 is the structural schematic diagram of the 3rd embodiment of electrical process machine part according to the present utility model, wherein includes
Electrode assembly according to the present utility model；
Fig. 6 is the structural schematic diagram of the fourth embodiment of electrical process machine part according to the present utility model, wherein includes
Electrode assembly according to the present utility model；
Fig. 7 shows the embodiment of the machined electrode in the electrode assembly of electrical process machine part according to the present utility model；
Fig. 8 shows the positioning table details in the B mechanism of electrode assembly shown in fig. 5.
List of the appended drawing reference in technical solution and embodiment in figure:
100- lathe, comprising:
101- electrode assembly, comprising:
1-C axis mechanism, comprising:
Driving device, comprising:
1.1- torque motor；
1.2- shaft coupling；
1.3- motor fixing seat；
Detection device, comprising:
1.4- angular encoder；
1.5- angular encoder fixed plate；
1.6- angular encoder locking nut；
1.7- turns round mandrel；
1.8- connection frame；
1.9- turntable bearing；
2- space mechanism, including
2.10- outside framework oil seal；
2.11- terminal pad；
2.12- connecting rod (connector sleeve)；
3-B axis mechanism, comprising:
3.13- rotating mechanism；
3.14- machined electrode；
3.15- electrode connecting plate；
3.16- electrode locking nut；
3.17-3R fixture；
3.18- positioning table
The 102- head of a bed, comprising:
112-X shaft body；
122-Y shaft body；
132-Z shaft body；
103- lathe bed；
104- workbench, comprising:
114- workpiece rotating part；
124- workpiece Joining Technology plate；
134- shield；
144- workpiece.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples, to more clearly understand the utility model
Utility model principle and beneficial technical effect.
Term explanation used herein:
X-axis, the front-rear direction along electrical process machine shown in Fig. 2,4 and 5 (for workbench in left side, lathe bed is on right side) are mobile
Direction is as shown by arrows, referred to as X-direction；
Y-axis, the left and right directions along electrical process machine shown in Fig. 2,4 and 5 (for workbench in left side, lathe bed is on right side) are mobile
Direction is as shown by arrows, referred to as Y direction；
Z axis, the up and down direction along electrical process machine shown in Fig. 2,4 and 5 (for workbench in left side, lathe bed is on right side) are mobile
Direction is as shown by arrows, referred to as Z-direction；
C axis, is parallel to Z axis, and rotary motion is as shown by arrows；
B axle, perpendicular to Z axis, rotary motion is as shown by arrows.
D axis, rotary motion are as shown by arrows.
As shown in Figure 1, showing it illustrates the workpiece that can be processed using electrical process machine 100 according to the present utility model
Example, shown in fig. 1 is blade-carrying dish-type workpiece.
Fig. 2 shows a preferred embodiments of electrical process machine 100 according to the present utility model.Electrical process machine 100
Including lathe bed 103, a head of a bed 102 being located on lathe bed 103 and the electrode assembly 101 for being fixed on the head of a bed 102, the head of a bed 102
Including X-axis main body 112, Y-axis main body 122 and Z axis main body 132, X-axis main body 112, Y-axis main body 122 and Z axis main body 132 are set respectively
It is equipped with driving device, guide rail, ram, X-axis main body 112 is moved back and forth along the x axis, Y-axis main body 122 can be along Y
Axis direction moves back and forth, and Z axis main body 132 can be moved back and forth along Z-direction.
First embodiment according to the present utility model, lathe bed 103 and the head of a bed 102 are in dynamic diplodocus door type structure, Y-axis therein
Main body 122 (dynamic beam portion point) is supported on lathe bed 103 in double base form, and X-axis main body 112 (ram part) is supported on Y-axis master
On body 122, Z axis main body 132 is supported in the X-axis main body 112.Z axis main body 132 is with respect to X-axis main body 112 along Z axis side as a result,
To reciprocating movement, X-axis main body 112 moves back and forth along the x axis with respect to Y-axis main body 122, and Y-axis main body 122 is with respect to lathe bed 103 along Y
Axis direction moves back and forth.Electrode assembly 101 is fixed on Z axis main body 132, enables electrode assembly 101 and the Z axis main body
132 move together.
Second embodiment according to the present utility model, as shown in figure 4, lathe bed 103 and the head of a bed 102 are in ox head structure, X-axis master
Body 112 is supported on lathe bed 103, and Y-axis main body 122 is supported in X-axis main body 112, and Z axis main body 132 is supported on the Y-axis main body
On 122.Z axis main body 132 is moved back and forth with respect to Y-axis main body 122 along Z-direction as a result, and Y-axis main body 122 is with respect to X-axis main body 112
It moves back and forth along the y axis, X-axis main body 112 moves back and forth along the x axis with respect to lathe bed 103.Electrode assembly 101 is fixed on Z axis
Main body 132 enables electrode assembly 101 to move together with the Z axis main body 132.
The illustrative construction of electrode assembly 101 according to the present utility model is described in detail below in conjunction with Fig. 3 A-C.It is a kind of
The electrode assembly 101 of electrical process machine 100 includes C axis mechanism 1 and B axle mechanism 3 and is arranged in C axis mechanism 1 and B axle mechanism 3
Space mechanism 2.
C axis mechanism 1 includes connection frame 1.8, revolution mandrel 1.7, the driving device of the driving revolution rotation of mandrel 1.7.Connection
Frame 1.8 is fixed on the Z axis main body 132 of the head of a bed 102.Revolution mandrel 1.7 is rotatably installed in connection frame 1.8 and including input
End, output end and rotation axis.Driving device is connected to the input terminal of revolution mandrel 1.7 for driving revolution mandrel 1.7 around rotation
Shaft axis rotation, it further includes motor fixing seat 1.3 and shaft coupling 1.2, motor that driving device, which preferably includes torque motor 1.1,
Fixing seat 1.3 is fixed on connection frame 1.8 and is fixed on torque motor 1.1 wherein, and shaft coupling 1.2 is defeated by torque motor 1.1
Outlet is connected to the input terminal of revolution mandrel 1.7.Preferably, torque motor 1.1 is fixed on by independent motor fixing seat 1.3
On connection frame 1.8.Motor fixing seat 1.3 is hollow, and bottom is equipped with opening, and 1.1 output end of torque motor is by shaft coupling 1.2 and returns
Turn mandrel 1.7 to be fixedly connected.Specifically, the bottom border for turning round mandrel 1.7 is equipped with boss, and boss is placed on turntable bearing
On 1.9,1.9 outer ring of turntable bearing is fixed on connection frame 1.8, specifically, there is a circle screw clearances on turntable bearing outer ring 1.9
Hole can pass through the hole using screw and bearing outer ring is fixed on connection frame 1.8, and 1.9 inner ring of turntable bearing is fixed to revolution
On the boss of mandrel 1.7.Turntable bearing 1.9 is fixed on the bottom of connection frame 1.8.
C axis mechanism further includes the detection device of the Angle Position of detection revolution mandrel 1.7, so that torque motor 1.1 is according to inspection
The data-driven of the Angle Position of the revolution mandrel 1.7 measured turns round mandrel 1.7.Preferably, detection device includes angular encoder
1.4 and by angular encoder 1.4 be fixed to connection frame 1.8 retention mechanism.Specifically, 1.4 outer ring of angular encoder passes through spiral shell
Bolt and angular encoder fixed plate 1.5 fasten, and inner ring carries out axial locking by angular encoder locking nut 1.6.Angle is compiled
Code device fixed plate 1.5 is cooperated by the heavy platform on boss and connection frame 1.8 thereon, and is fastened by bolts in connection frame 1.8
On.The angle-data for the revolution mandrel 1.7 that angular encoder 1.4 will test is transferred to the control centre of electrical process machine 100,
Control centre controls the operation of driving device, so realization full closed loop control, guarantees machining accuracy.
B axle mechanism 3 includes rotating mechanism 3.13 and the machined electrode 3.14 being mounted on rotating mechanism 3.13.As implementation
Example, rotating mechanism 3.13 can be immersed in electrical discharge machining with rotational workpieces for install using the existing of electrical process machine
Work turning table in liquid, rotating mechanism 3.13 can rotate and are connected to around its axis of rotation the output end of revolution mandrel 1.7, make
The movement that mandrel 1.7 must be turned round can be transmitted to rotating mechanism 3.13.Specifically, there is driving B axle mechanism 3 to rotate for B axle mechanism 3
Driving device (not shown), B axle mechanism 3 can around its axis of rotation turn round 360 °.As an implementation, it rotates
The internal structure of mechanism 3.13 can be similar with common turntable: motor drives worm screw rotation, is changed into snail by worm couple
The rotation of wheel, axis turntable bearing outer ring are fixed on shell, and inner ring one end connects worm gear one end and connects scratch diskette.Its sealing can use
Outside framework oil seal.
B axle mechanism 3 can be immersed in the electric spark processing liquid of electrical process machine 100.Preferably, which can use
The rotary table of immersion oil, that is, rotating mechanism 3.13 is immersion oil turntable using the turntable in workbench.
3.13 end of rotating mechanism is equipped with electrode holder seat 17, for example, 3R fixture, machined electrode towards the side of workpiece
3.14 pass through the guide frame guide-localization of 3R fixture, and the pull rod of 3R fixture takes up fixation.3R fixture is tied including 3 parts
Structure: (1) 3R clamping fixture seat, (2) pull rod, (3) 3R connection sheet.Wherein, 3R connection sheet is connected with electrode section, and 3R clamping fixture seat is fixed to
On rotary table face.Pull rod connects together 3R connection sheet with 3R clamping fixture seat.There is tension on 3R clamping fixture seat and unclamp and draws
The device (the loose broaching tool of similar machining center) and 3R connection sheet of bar are guide locating device provided.High-precision is realized during tension
Positioning clamp.
The mode of the fixed electrode in 3.13 end of rotating mechanism can be with are as follows: scheme one passes through 3R fixture using 3R fixture 3.17
The electrode connecting plate 3.15 of electrode is strained and fixed by 3.17 guide frame guide-localization, pull rod.Secure the electrodes to electrode company
Electrode is fixed using electrode locking nut 3.16 on fishplate bar 3.15.Electrode connecting plate 3.15 is directly installed to rotation by scheme two
On 3.13 table top of rotation mechanism, secures the electrodes on electrode connecting plate 3.15 and fixed electrode using electrode locking nut 3.16.
The shape of electrode is configured according to the shape of the working position of workpiece.
Space mechanism 2 be fixedly provided in revolution mandrel 1.7 and rotating mechanism 3.13 between so that revolution mandrel 1.7 with
There is spacing between rotating mechanism 3.13.The spacing guarantees that mandrel 1.7 is turned round when Z-axis mechanism goes to most lower limit will not also be immersed in
Inside electric spark processing liquid, it is preferred that be higher than aforementioned spacing.Space mechanism 2 includes outside framework oil seal 2.10,2.11 and of terminal pad
So that having the connecting rod of spacing between revolution mandrel 1.7 and turntable, outside framework oil seal 2.10 is arranged in outside the bottom of connection frame 1.8
Side enters in connection frame 1.8 to avoid electric spark processing liquid.Specifically, turn round mandrel 1.7 bottom by terminal pad 2.11 with
Connecting rod is fixedly connected, by the effect of connecting rod, can increase above-mentioned turntable bearing 1.9 and rotating mechanism 3.13 away from
From guarantee turntable bearing 1.9 supports rotating part can be more than liquid level, and rotating mechanism 3.13 can guarantee turntable axis with immersion oil
Holding 1.9 support rotating parts will not be dipped in oil.Connecting rod bottom is connected with B axle mechanism 3.Connecting rod is preferably sleeve-shaped,
Connector sleeve 2.12 i.e. in the present embodiment.The wall thickness of connector sleeve 2.12 is able to bear the torque of rotation.Select tube-in-tube structure
Can loss of weight while, keep distribution of force more reasonable.
Electrical process machine 100 according to the present utility model includes main shaft, and main shaft is equipped with C axis mechanism 1 and B axle mechanism 3.Workpiece
It is locked on workbench 104 after being turned back to determining position, processing electricity is realized by the linkage of X, Y, Z linear axis and B, C rotating shaft
Pole 3.14 walks, electric machining, because the workpiece rotating shaft of workbench 104 is without participating in linkage electric machining, so that workbench 104 returns
Rotating shaft electric motor inertia and torque are without too greatly, can be improved machining accuracy.
The driving device of C axis mechanism can drive C axis mechanism to rotate about the axis thereof.In the present embodiment, when processing, C axis machine
The zero point (initial processing position) of structure determines are as follows: revolution mandrel 1.7 is turned round, so that the axis of the axis of B axle mechanism and Y-axis main body
In parallel.
Revolution mandrel 1.7 and rotating mechanism 3.13 are arranged to: the rotation axis of revolution mandrel 1.7 and rotating mechanism 3.13
Angular range between rotation axis is 60 ° -120 °；Preferably 75 ° -105 °, according to the angle of workpieces processing working position
It is configured, while can guarantee interference do not occur when processing.
Preferably, turn round mandrel 1.7 and rotating mechanism 3.13 is arranged to: the rotation axis of revolution mandrel 1.7 is perpendicular to simultaneously
Pass through the rotation axis of rotating mechanism 3.13；It is convenient, easy to control to program in machine tooling.This structure is particularly suitable for disk
The processing of type workpiece.
Preferably, turn round mandrel 1.7 and rotating mechanism 3.13 is arranged to: the rotation axis of revolution mandrel 1.7 passes through rotation
The rotation axis of mechanism 3.13.
The revolution mandrel 1.7 of C axis mechanism 1 can turn round at least ± 60 °, and preferred at least ± 90 ° of revolution can also have more
The big range of work, so as to cover bigger machined surface.The angle of revolution of C axis mechanism 1 is set as being no more than ± 180 °, avoids
The connecting line of rotary table is twisted off, when the connection cables of rotary table use swivel joint, which can be with
The upper limit is not set, can be turned round with 360 °.The driving device of C axis mechanism 1 is preferably torque motor 1.1, but can also be suitable using other
Close the motor of type.Using torque motor 1.1, the structure of C axis mechanism 1 can be made more compact, dynamic property is more preferable, inertia
It is small, due to no mechanically operated back clearance and abrasion, it is aided with direct measuring system (i.e. detection device), can get very high revolution
Precision.It is controlled using 1.1 direct connection of torque motor, the backlass and power loss that no transmission chain generates guarantee rotating accuracy.Power
The advantages that torque motor 1.1 has the slow-speed of revolution, large torque, overload capacity strong, and response is fast, and torque fluctuations are small, is suitble to high-precision
Dynamic electric machining.
The driving device of 1 structure of C axis machine is fixed on connection frame 1.8, and connection frame 1.8 is by C axis mechanism 1 in addition to that can connect
It connects in Z axis main body 132, also can connect on lathe 100 or in other drive shafts of lathe 100.
Machined electrode 3.14 can need to be equipped with multiple processing ends according to workpieces processing 144, realize a machined electrode
The position or orientation of 3.14 at least two workpiece of processing, reduces the frequency of replacement electrode, provides processing efficiency.Such as it can be in height
Electrode is arranged up and down, on the left and right of horizontal direction in degree direction.Electrode can also be respectively set in a plurality of directions.For example, Fig. 7
Shown in 4 electrodes are set in embodiment.It is preferable provided with electrode library, it can be according to the needs and electrode of workpieces processing shape
Loss situation replace electrode.
The workbench 104 of electrical process machine 100 according to the present utility model includes workpiece rotating part 114, workpiece connection
The setting of board 124 and shield 134, workbench 104 can be there are many form.According to the needs of workpieces processing, such as adding
When work is for example ring-like or dish-type workpiece, workbench 104 can be set to rotary table 104, i.e. D axis, the direction of motion such as Fig. 4
Arrow shown in, workpiece can be made to rotate different positions around 104 center of workbench.
Workbench 104 can be horizontal positioned, or vertical to place.As shown in Fig. 2, when horizontal positioned, electrode
Direction is vertical direction setting, and the processing head of electrode can be two, can be according to the upper of the setting workpieces processing of processing technology
Lower two sides.Save the time of replacement electrode.
It is vertical when placing, as shown in figure 5, the direction of electrode be it is horizontally disposed, the processing head of electrode can be two, can be with
According to the two sides of the setting workpieces processing of processing technology.Save the time of replacement electrode.
As shown in Fig. 2, 100 rigidity of lathe is good, and precision is high, stability when 100 structure of lathe is dynamic diplodocus door type structure
It is good；104 load-bearing of workbench reaches 4-5 tons；104 responsible indexing of workbench；Arrange C shaft body, in Z axis main body 132 with small
X, Y of inertia, Z, C, B axle, which link, replaces the rotation of workpiece rotary table, can be improved process velocity.Planer type structure Y-axis main body 122
Be arranged on lathe bed 103, if there are two guide rail horizontal span is big, stable structure, be not in as Y-axis main body 122 is mobile and
The situation that electrode leans forward.
As shown in figure 4,100 structure of lathe may be ox head structure, Y-axis main body 122 is arranged in X-axis main body 112
Face.Ox head structure makes the compact-sized of lathe 100, and operator is easily accessible working region, clamping workpiece and observation workpiece side
Just.
For horizontally disposed workbench 104, multiple processing head of a bed 102 can be surrounded in 104 surrounding of workbench.
It such as can be 2-8.It preferably 2,4, as shown in fig. 6, can be processed simultaneously to annular workpieces, can mention at double
High processing efficiency.
As shown in figure 5, the head of a bed can be respectively set in the left and right of workbench 104 for the workbench 104 placed vertically
102, annular workpieces can be processed simultaneously, improve processing efficiency.
The step of specific process:
Determine the coordinate system of workpiece:
C axis mechanism Zero calibration: workbench installs workpiece, and C axis mechanism is turned back to axis and the Y-axis master of ShiBZhou mechanism
The axis of body is parallel, using this state as the zero point of C axis mechanism.
X-axis main body Zero calibration: X-axis main body is moved to so that the axis of rotation of workbench " axis of B axle mechanism pass through ",
Using this state as the zero point of X-axis main body.
Y-axis main body Zero calibration: the zero point of Y-axis main body uses lathe coordinate system or true according to the axis of rotation of workbench
It is fixed.
Z axis main body Zero calibration: the zero point of Z axis main body is determined according to the position of workpiece surface.
B axle mechanism Zero calibration: the fixture positioning table 3.18 (as shown in 8) of ShiBZhou mechanism is with X-axis main body in " parallel
Or vertical " state, using this state as the zero point of B axle mechanism.
Workbench Zero calibration: for the workpiece of revolving meber, after the completion of clamping workpiece, according to other features on workpiece
Size carries out calibration dead-center position.
It determines the zero point of finished piece(s), that is, can determine coordinate system of the workpiece on lathe.Based on this, control lathe is to work
Part is processed.
Determine that workbench processes the angle for needing to turn round after a working position of multiple working positions as requested.
Process description:
Workbench is turned round with workpiece and is positioned, and X, Y, Z axis main body and the linkage of B, C axis mechanism, which walk, to be carried out the screw-in of electrode and add
Work processes first working position, and electrode screws out, and workpiece is turned back to the angle of requirement, rotary table, X, Y, Z axis main body
With B, C axis mechanism again axis linkage walk carry out electrode screw-in processing.
Beneficial effect
1, the annular workpieces (working position such as gas turbine nozzle may be implemented in electrical process machine according to the present utility model
With curved surface, there is the workpiece of processing blind area in tradition machinery processing) electric machining, planer type structure makes machine tool accuracy retentivity
Good, cattle-head structure keeps lathe compact.
2, machined electrode is mounted on immersion oil turntable, and electrode rotating shaft can realize that workpiece immersion oil is processed using immersion oil turntable,
Turntable can realize high-precision numerical control rotary movement simultaneously.
3, C shaft body uses torque motor direct connection, eliminates backlass.
4, using angular encoder, realize full closed loop control to improve precision.
5, when being applied to annular workpieces processing, workpiece is fixed after being turned back to respective angles, is linked by other axis and is carried out electricity
Processing, this scheme workpiece rotating shaft can be met the requirements without preferable linkage performance.Other rotating shafts only need driving electrodes, matter
Measure small, linkage motion cutting is easy to accomplish.It is horizontal positioned to deposit for embodiment one, two when workbench and horizontal positioned workpiece
It leans forward on the table in workpiece and influences machining accuracy.
6, grinding machine structure design is reasonable, and the high-precision processing to the large-scale annular workpieces with curved surface features may be implemented,
Such as it can be applied to the processing of blade-carrying ring-like workpiece that diameter is 1500mm (linear distance between working position can
Think 1500mm).
7, when this B, C axle construction is applied to the annular workpieces processing with curved surface features, processing action is simple, therefore nothing
Complicated system of processing control is needed, simultaneous processing programming is simple.
The above content describes specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the protection scope of the utility model is to be defined by the appended claims.Those skilled in the art
Under the premise of without departing substantially from the principles of the present invention and essence, various changes or modifications can be made to these embodiments,
These change and modification each fall within the protection scope of the utility model.Each feature in above embodiments can also be according to this reality
Make any combination in the reasonable scope with new principle, this combination is also fallen into the protection scope of the utility model.
Claims (22)
1. a kind of electrode assembly (101) of electrical process machine (100), comprising:
C axis mechanism (1)；And
B axle mechanism (3), the B axle mechanism (3) are connected to the C axis mechanism (1)；Wherein
The C axis mechanism (1) includes:
Driving device, the C axis mechanism (1) is driven to run for the driving device so that the B axle mechanism (3) is around the C axis machine
The rotation axis of structure (1) rotates；
It is characterized in that, the B axle mechanism (3) includes:
The rotating mechanism (3.13) that can be immersed in electric spark processing liquid, the rotating mechanism (3.13) can be around its rotating shaft
Line rotates and is connected to the C axis mechanism (1), and the movement of the C axis mechanism (1) is enabled to be transmitted to the rotating mechanism
(3.13)；And
The machined electrode (3.14) being mounted on the rotating mechanism (3.13).
2. the electrode assembly (101) of electrical process machine (100) as described in claim 1, which is characterized in that
The C axis mechanism (1) further include:
Connection frame (1.8)；And
It turns round mandrel (1.7), is rotatably installed in the connection frame (1.8) and including input, output end and the rotation
Shaft axis；
Wherein, the driving device is connected to the input terminal of revolution mandrel (1.7) for driving the revolution mandrel
(1.7) it is rotated around the rotation axis；
The rotating mechanism (3.13) is connected to the output end of revolution mandrel (1.7).
3. the electrode assembly (101) of electrical process machine (100) as claimed in claim 2, which is characterized in that
It further include the detection device for detecting the Angle Position of revolution mandrel (1.7), so that the driving device is according to detecting
The revolution mandrel (1.7) Angle Position data-driven described in revolution mandrel (1.7).
4. the electrode assembly (101) of electrical process machine (100) as claimed in claim 3, which is characterized in that the detection device
The retention mechanism of the connection frame (1.8) is fixed to including angular encoder (1.4) and by angular encoder (1.4).
5. the electrode assembly (101) of electrical process machine (100) as claimed in claim 4, which is characterized in that the retention mechanism
Including angular encoder fixed plate (1.5) and angular encoder locking nut (1.6), the angular encoder fixed plate (1.5)
It is fastened on the outer ring of the angular encoder (1.4), the inner ring of the angular encoder (1.4) is locked by the angular encoder
Tight nut (1.6) carries out axial locking.
6. the electrode assembly (101) of electrical process machine (100) as claimed in claim 2, which is characterized in that
Revolution mandrel (1.7) and the rotating mechanism (3.13) are arranged to the rotary shaft of revolution mandrel (1.7)
Line is perpendicular to and/or by the axis of rotation of the rotating mechanism (3.13)；
And/or the driving device includes torque motor (1.1), the output end of the torque motor (1.1) is drivingly connected to
The input terminal of revolution mandrel (1.7).
7. the electrode assembly (101) of electrical process machine (100) as described in claim 1, which is characterized in that
It further include space mechanism (2), the space mechanism (2) is fixedly provided in the C axis mechanism (1) and the rotating mechanism
(3.13) between, so that having spacing between the C axis mechanism (1) and the rotating mechanism (3.13).
8. the electrode assembly (101) of electrical process machine (100) as claimed in claim 6, which is characterized in that
The driving device further includes motor fixing seat (1.3) and shaft coupling (1.2), wherein the motor fixing seat (1.3) is solid
It is fixed on wherein due to the connection frame (1.8) and by the torque motor (1.1), the shaft coupling (1.2) is by the torque
The output end of motor (1.1) is connected to the input terminal of revolution mandrel (1.7).
9. the electrode assembly (101) of electrical process machine (100) as claimed in claim 7, which is characterized in that
The C axis mechanism (1) further include:
Connection frame (1.8)；And
It turns round mandrel (1.7), is rotatably installed in the connection frame (1.8) and including input, output end and the rotation
Shaft axis；
The space mechanism (2) includes so that having spacing between the revolution mandrel (1.7) and the rotating mechanism (3.13)
Hollow connector sleeve (2.12).
10. the electrode assembly (101) of electrical process machine (100) as claimed in claim 9, which is characterized in that the interval machine
Structure (2) further includes outside framework oil seal (2.10), and the bottom outside in the connection frame (1.8) is arranged in the outside framework oil seal (2.10),
Enter in the connection frame (1.8) to avoid the electric spark processing liquid.
11. the electrode assembly (101) of electrical process machine (100) as claimed in claim 6, which is characterized in that
It further include the turntable bearing (1.9) being mounted in the connection frame (1.8), so that revolution mandrel (1.7) is described
Output end can be rotated to support in the turntable bearing (1.9).
12. the electrode assembly (101) of electrical process machine (100) as claimed in claim 11, which is characterized in that the revolution heart
Axis (1.7) can turn round at least ± 60 °.
13. the electrode assembly (101) of electrical process machine (100) as claimed in claim 12, which is characterized in that the revolution heart
The angle of revolution of axis (1.7) is less than ± 180 °.
14. the electrode assembly (101) of the electrical process machine (100) as described in any one in claim 1-13, feature
It is,
The rotating mechanism (3.13) is using the existing for installing and the Work turning table of rotational workpieces of electrical process machine.
15. the electrode assembly (101) of electrical process machine (100) as claimed in claim 14, which is characterized in that the whirler
Structure (3.13) can prevent electric spark processing liquid from entering wherein.
16. a kind of electrical process machine (100), which is characterized in that the electrical process machine (100) is using such as claim 1-15
In any one electrode assembly (101), the electrical process machine (100) includes the electrode assembly (101), lathe bed
(103) and at least one head of a bed (102) for being located on the lathe bed (103), each head of a bed (102) includes X-axis main body
(112), Y-axis main body (122) and Z axis main body (132), the X-axis main body (112), Y-axis main body (122) and Z axis main body (132)
It is respectively arranged with driving device, guide rail, ram, wherein
The X-axis main body (112), Y-axis main body (122) and Z axis main body (132) are associated with one another, so that the X-axis main body (112)
It can move back and forth along the x axis, the Y-axis main body (122) can move back and forth along the y axis, the Z axis main body (132)
It can be moved back and forth along Z-direction；
The connection frame (1.8) of the electrode assembly (101) is fixedly connected to the Z axis main body (132), makes the connection frame
(1.8) it can be moved together with the Z axis main body (132).
17. electrical process machine (100) as claimed in claim 16, which is characterized in that the C axis mechanism, the B axle mechanism,
The Y-axis main body and the Z axis main body are arranged so that the rotation axis of the C axis mechanism and the Z-direction of the Z axis main body
In parallel, the axis of rotation of the B axle mechanism can be parallel with the Y direction of Y-axis main body.
18. electrical process machine (100) as claimed in claim 16, which is characterized in that
It further include the workbench (104) for placing workpiece, the workbench (104) has being capable of returning around the workbench (104)
The workpiece rotating part (114) of shaft axis rotation, the workpiece rotating part (114) make for workpiece to be fixed thereon
Workpiece is turned round around the axis of rotation.
19. electrical process machine (100) as claimed in claim 18, which is characterized in that
The workbench (104) is arranged to horizontal positioned or vertical placement.
20. electrical process machine (100) as claimed in claim 18, which is characterized in that at least one described head of a bed (102) includes
Around the two or four head of a bed (102) of the workbench (104) setting；
And/or the machined electrode (3.14) includes multiple electrodes.
21. electrical process machine (100) as claimed in claim 20, which is characterized in that any two in the multiple electrode
Electrode extends to opposite both direction respectively on the vertical plane of the axis of rotation perpendicular to the rotating mechanism (3.13),
Perhaps direction that is perpendicular to one another or extending interlocks certain angle.
22. electrical process machine (100) as claimed in claim 18, which is characterized in that the head of a bed (102) is in dynamic diplodocus gate-type
Structure, the Y-axis main body (122) are supported on the lathe bed (103) in double base form, and the X-axis main body (112) is supported on
On the Y-axis main body (122), the Z axis main body (132) is supported on the X-axis main body (112), the Z axis main body (132)
The structure being integrated with the connection frame (1.8)；
Or, the head of a bed (102) is in ox head structure, the X-axis main body (112) is supported on the lathe bed (103), the Y-axis
Main body (122) is supported on the X-axis main body (112), and the Z axis main body (132) is supported on the Y-axis main body (122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605896.6U CN209077979U (en) | 2018-09-29 | 2018-09-29 | Electrode assembly in electrical process machine and electrical process machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605896.6U CN209077979U (en) | 2018-09-29 | 2018-09-29 | Electrode assembly in electrical process machine and electrical process machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108407A (en) * | 2018-09-29 | 2019-01-01 | 山东豪迈机械科技股份有限公司 | Electrode assembly and processing method in electrical process machine and electrical process machine |
| CN110773826A (en) * | 2019-09-02 | 2020-02-11 | 广东米尔迪克智能机械实业有限公司 | Large-scale double ox head spark machine |
| CN117620273A (en) * | 2023-12-28 | 2024-03-01 | 苏州天顺复合材料科技有限公司 | Milling device of male-mold-free combined die for molding web female die of wind power blade |
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2018
- 2018-09-29 CN CN201821605896.6U patent/CN209077979U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108407A (en) * | 2018-09-29 | 2019-01-01 | 山东豪迈机械科技股份有限公司 | Electrode assembly and processing method in electrical process machine and electrical process machine |
| WO2020063098A1 (en) * | 2018-09-29 | 2020-04-02 | 山东豪迈机械科技股份有限公司 | Electromachining machine tool, electrode assembly in electromachining machine tool, and machining method |
| CN110773826A (en) * | 2019-09-02 | 2020-02-11 | 广东米尔迪克智能机械实业有限公司 | Large-scale double ox head spark machine |
| CN117620273A (en) * | 2023-12-28 | 2024-03-01 | 苏州天顺复合材料科技有限公司 | Milling device of male-mold-free combined die for molding web female die of wind power blade |
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