CN106863027A - A kind of noncontact rotary ultrasonic wheel grinding device - Google Patents
A kind of noncontact rotary ultrasonic wheel grinding device Download PDFInfo
- Publication number
- CN106863027A CN106863027A CN201710238373.6A CN201710238373A CN106863027A CN 106863027 A CN106863027 A CN 106863027A CN 201710238373 A CN201710238373 A CN 201710238373A CN 106863027 A CN106863027 A CN 106863027A
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- China
- Prior art keywords
- grinding
- ultrasonic
- base body
- magnetic core
- wheel base
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a kind of noncontact rotary ultrasonic wheel grinding device, including grinding machine matrix, the main shaft being arranged on grinding machine matrix and the grinding wheel base body being fixed on the main shaft, a primary side magnetic core mounting seat mutually close with the grinding wheel base body is provided with the grinding machine matrix, transmitting non-contact electric energy secondary coil component is provided with the annular groove of the grinding wheel base body, transmitting non-contact electric energy primary coil component is provided with the annular groove of the primary side magnetic core mounting seat；A coil transducer mounting hole is uniformly distributed in the grinding wheel base body wheel rim end face circumferencial direction, each annular groove of the transducer mounting hole with the grinding wheel base body is communicated, and single-excitation ultrasonic oval vibration energy converter is provided with each described transducer mounting hole.Emery wheel of the present invention can effectively reduce grinding force when difficult-to-machine material is processed by ultrasonic vibration, it is easy to which coolant dredges the heat in arc area into grinding arc area, improve workpiece surface crudy.
Description
Technical field
The present invention relates to a kind of difficult-to-machine material grinding field, and in particular to one kind grinding noncontact rotary ultrasonic emery wheel
Grinding attachment.
Background technology
During tough material high is ground, due to the drastically rising of grinding arc area temperature, coolant cannot be introduced into arc
Area causes the sudden burn that piece surface is produced；The problems such as damage on the larger workpiece surface for causing of grinding force and surface；Especially
It is in today of scientific and technological high speed development, every profession and trade to process part precision and quality requirement more and more higher, above-mentioned processing lack
Falling into can seriously govern the raising of processing efficiency, it is therefore desirable to which a kind of new processing method improves the processing of tough material high
Efficiency and crudy.
Ultrasonic grinding technology has been obtained extensively as a kind of reliable and stable process technology in the processing of hard brittle material
Application.At present, the mode of ultrasonic vibration grinding machining mainly has two kinds：Vibration cutting and Workpiece vibration；Vibration cutting now
The application of grinding processing method is more ripe, and many appearance in the form of ultrasonic handle of a knife.Generally, in major diameter dimension emery wheel
In ultrasonic vibration grinding machining, due to the limitation of emery wheel dimensional weight, therefore can only be carried out by the way of Workpiece vibration grinding
Part is processed, but in actual grinding process, also due to the influence of the factor such as workpiece size, structure, weight, workpiece shakes
The vibration parameters such as width, direction of vibration, frequency cannot meet the design requirement of vibration machining, and this also constrains this kind of grinding method
Popularization in the industrial production with use.
Ultrasonic electric energy transmission means mainly has two classes：Contact and contactless.Contact is mainly by carbon brush and leads
Electrojet ring realizes that electric energy is transmitted, and this mode can produce sparking in the moment being powered, and carbon brush is easy to wear, the life-span is low, structure
It is fixed, be not suitable for being used under the conditions of high-revolving；It is contactless mainly to realize that electric energy is passed by the electromagnetic induction of two coils
Defeated, its simple structure, transmission flexibility is strong, thus obtains domestic and foreign scholars and widely pay close attention to.At present, ultrasonic non-contact electric energy is passed
It is defeated that relatively broad application is had in ultrasonic handle of a knife.Application of the rotation transmitting non-contact electric energy in ultrasonic emery wheel can be carried effectively
The quality on grinding workpiece surface high, while it is inconsistent to overcome the dynamic amplitude of this mode workpiece diverse location of Workpiece vibration, nothing
Method makes large-scale workpiece produce the shortcoming of vibration.
The content of the invention
The technical problems to be solved by the invention are directed to the deficiency that above-mentioned prior art is present, and provide a kind of for height
The major diameter noncontact rotary ultrasonic grinding wheel unit of tough material removal, to carry out ultrasonic vibration grinding to large-size workpiece
Processing, so as to improve the surface integrity of workpiece to be machined, improve the efficiency of grinding, improve the service life of emery wheel.Profit
It is that ultrasonic transducer is powered with the mode of transmitting non-contact electric energy, not only increases the security of system and device, and carries significantly
The flexibility of electric energy transmission high.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of noncontact rotary ultrasonic wheel grinding device, including grinding machine matrix, the main shaft that is arranged on grinding machine matrix with
And it is fixed on the grinding wheel base body on the main shaft, it is characterised in that：One is provided with the grinding machine matrix with the emery wheel base
The close primary side magnetic core mounting seat of body phase, relative two medial surfaces difference on the grinding wheel base body and primary side magnetic core mounting seat
It is provided with annular groove；Transmitting non-contact electric energy secondary coil component is provided with the annular groove of the grinding wheel base body, in the original
Transmitting non-contact electric energy primary coil component is provided with the annular groove of side magnetic core mounting seat；The transmitting non-contact electric energy secondary
Coil block includes secondary pot magnetic core, secondary coil and solidification filler, and the secondary coil solidification filler is installed on
In secondary pot magnetic core；The transmitting non-contact electric energy primary coil component includes primary side pot core, secondary coil and consolidates
Change filler, the primary coil solidification filler is installed in primary side pot magnetic core；The primary side magnetic core and secondary magnetic core
End face is parallel relative, and both end face relative gaps are 0.5-2mm；It is uniformly distributed in the grinding wheel base body wheel rim end face circumferencial direction
One coil transducer mounting hole, each annular groove of the transducer mounting hole with the grinding wheel base body is communicated, described in each
Single-excitation ultrasonic oval vibration energy converter, the lead-out wire of the secondary coil and single-excitation ultrasonic oval vibration energy converter electricity are installed in transducer mounting hole
Connection；The single-excitation ultrasonic oval vibration energy converter includes front shroud, back shroud and the piezoelectricity pottery being fixed between front shroud and back shroud
Ceramics and electrode slice, are connected with a ultrasonic transformer on the front shroud, and emery wheel caking is provided with the ultrasonic transformer.
The front shroud uses mode connects for screw with ultrasonic transformer, and the section of the front shroud and the cross sectional shape of ultrasonic transformer are
Smooth curve, and front shroud is less than the width extended to both sides with the cross-sectional width of the junction of ultrasonic transformer.
The transducer mounting hole is stepped hole, and the back shroud is located in the diameter holes of the stepped hole, at described
Be provided with the large diameter hole in rank hole one compress and fixed front shroud upper flange screw clamp plate, the screw clamp plate and the stepped hole
Threaded connection.
The one coil transducer mounting hole is x circular hole, wherein 18 ＜ x ＜ 30.
The emery wheel caking is adhesively fixed on the ultrasonic transformer front end face of single-excitation ultrasonic oval vibration energy converter using bonding agent, forms emery wheel
Grinding surface.
Along grinding wheel cylindrical side face be installed in grinding wheel base body ultrasonic transducer by structure design by the present invention, and by sand
Wheel caking is fixed on ultrasonic transducer, and by rotating the method for non-contact type electric energy transmission for ultrasonic transducer provides electricity
Can, effectively ultrasonic vibration technology is combined with wheel grinding, the wheel vibration of the big quality of large scale is realized, not only improve
The security of single unit system, also for emery wheel ultrasonic vibration aided grinding large-scale workpiece provides possibility.
Brief description of the drawings
Fig. 1 is the partial schematic diagram of noncontact rotary ultrasonic grinding wheel unit of the invention.
Fig. 2 is primary coil fixed plate front view in the present invention.
Fig. 3 is primary coil fixed plate left view in the present invention.
Fig. 4 is ultrasonic emery wheel front view in the present invention.
Fig. 5 is ultrasonic emery wheel right view in the present invention.
Fig. 6 is ultrasonic transducer front view in the present invention.
Fig. 7 is ultrasonic transducer left view in the present invention.
Fig. 8 is application example schematic diagram of the invention.
Label declaration in figure：1. primary coil fixed plate, 2. primary side permeability magnetic material, 3. primary coil, 4. primary side epoxy consolidate
Change filler, 5. screw clamp plate, 6. single-excitation ultrasonic oval vibration energy converter, 7. grinding wheel base body, 8. secondary permeability magnetic material, 9. secondary coil, 10.
Secondary curable epoxide filler, 11. emery wheels caking, 12. ultrasonic transformers, 13. front shrouds, 14. piezoelectric ceramic pieces, 15. bonding agents,
16. attachment screws, 17. electrode slices, 18. back shrouds, 19. main shaft forward flanges, 20. machine tool chief axis, 21. grinder bed baffle plates, 22.
Screw, 23. main shaft rear flanges, 24. workpiece, 25. ultrasonic-frequency power supplies.
Specific embodiment
Hereinafter, with reference to accompanying drawing, the present invention is described further.Noncontact rotary ultrasonic wheel grinding device includes rotation
Turn end and fixing end two parts.Round end mainly includes grinding wheel base body 7, the ultrasound in grinding wheel base body circle end face circular hole
Vibration transducer 6, secondary permeability magnetic material 8, secondary coil 9, secondary curable epoxide filler 10；Fixing end mainly includes primary side line
Circle fixed plate 1, primary side permeability magnetic material 2, primary coil 3 and primary side curable epoxide filler 4.
The material of grinding wheel base body 7 in round end is 45 steel, and structure is the interior 28 equilateral disks for being connected to Φ 200mm circles, endoporus
A diameter of size Φ 42mm, thickness is 20mm, and 28 end face centers are based in emery wheel, has a diameter of 14mm, depth
The step circular hole of 16.5mm and a diameter of 18.4mm, depth 12mm, it is 15mm, a width of 10mm that the one side of grinding wheel base body is provided with depth
Annular groove, and the aperture that there is an a diameter of Φ 2mm in each step circles bottom hole face communicates with annular groove.
The outline of single-excitation ultrasonic oval vibration energy converter 6 is cylinder, and it mainly includes front shroud 13 and is sequentially sleeved at front shroud 13
Piezoelectric ceramic piece 14, electrode slice 17 and back shroud 18 on stud, front shroud 18 are provided with the ring flange of connection.Piezoelectric ceramic piece
14 and electrode slice 17 be fixed with the screw thread of back shroud 18 by the stud of front shroud 13；Using attachment screw 16 by ultrasonic transformer
12 couple with front shroud 13, and emery wheel caking 11 is then bonded to the outer face of ultrasonic transformer by bonding agent 15.Wherein piezoelectricity is made pottery
The material of ceramics 14 is PZT-8, and size is：Φ 10 × Φ, 5 × 2mm, the piece number of piezoelectric ceramic piece 14 is 2.
Single-excitation ultrasonic oval vibration energy converter 6 is loaded when in the step circular hole of the end face of grinding wheel base body 7, first will be by front shroud 13, piezoelectricity
The ultrasonic transducer part that potsherd 14, electrode slice 17 and back shroud 18 are assembled up loads stepped hole, by the precession of screw clamp plate 5
The flange that stepped hole is compressed and fixed on front shroud 13；Complete it is fixed after, with attachment screw 16 by ultrasonic transformer 12 and front shroud
13 connections, then emery wheel caking 11 is adhered to the front end face of ultrasonic transformer with bonding agent 15, complete single-excitation ultrasonic oval vibration energy converter and emery wheel
The assembling of matrix.
Secondary permeability magnetic material 8 is permalloy, and structure is the annulus of 128 × Φ of Φ, 72 × 10.5mm, is opened in a side end face
There is the annular groove of 125 × Φ of Φ, 75 × 8.5mm, by being drilled with 28 circular holes of a diameter of Φ 2mm on the periphery of another side, with
The annular groove of secondary permeability magnetic material 8 is communicated, and with 28 apertures of diameter of phi 2mm in grinding wheel base body 7 just to communicating, it is super as connection
The wire interface channel of acoustic vibration transducer 6 and secondary coil 9.Secondary permeability magnetic material is attached to sand by the way of interference fit
Take turns in the annular groove of matrix 7.
Secondary coil 9 is made up of (every group of coil mutually insulated) the coils from parallel connection of coils of 28 groups of same diameters and the number of turn；Each group
Coil only provides electric energy for a single-excitation ultrasonic oval vibration energy converter 6, and being calculated former and deputy sideline by the peak power of ultrasonic transducer encloses
The number of turn and line footpath.The secondary coil 9 that coiling is completed loads in the side end face annular groove of secondary permeability magnetic material 8, respectively by 28 groups
Coil lead is connected with the joint of 28 single-excitation ultrasonic oval vibration energy converters 6, and with secondary curable epoxide filler 10 by secondary line
Enclose 9 cure packages.
The structure of primary coil fixed plate 1 is circle convex platform, is provided with raised head face and physical dimension on the end face of grinding wheel base body 7
Identical annular groove, boss side surfaces are drilled with the circular hole of diameter of phi 8mm；Whole fixed plate passes through screw by four holes of its rim
22 are fixedly mounted on grinder bed baffle plate 21, parallel with grinding wheel base body 7 relative, and the side end face of 7 annular groove of grinding wheel base body one with it is solid
The relative distance of fixed board raised head face is controlled by adjusting backing plate (not providing).
Primary side permeability magnetic material 2 its material, physical dimension are identical with secondary permeability magnetic material 8, repeat no more here, unlike
The circular hole of a diameter of Φ 2mm of only one of which on its periphery, the circular hole phase with the boss side surfaces Φ 8mm of primary coil fixed plate 1
It is right, it is the line supplying channels of primary coil 3 for ultrasonic-frequency power supply 25.Primary side permeability magnetic material is equally pacified by the way of interference fit
It is filled in the annular groove of primary coil fixed plate 1.
The number of turn of primary coil 3 is identical with secondary coil 9, and its diameter of wire is then by 28 single-excitation ultrasonic oval vibration energy converters
General power is calculated.The primary coil that coiling is completed is led its cure package to primary side using primary side curable epoxide filler 4
In the annular groove of magnetic material 2.
During operation, with reference to shown in Fig. 8, main axis drive emery wheel to be based on 7 and rotate；Ultrasonic-frequency power supply 25 and the phase of primary coil 3
Even, when ultrasonic-frequency power supply 25 exports electric signal, based on electromagnetic induction effect, the alternating magnetic field that primary coil 3 is produced makes emery wheel base
Secondary coil 9 in body 7 produces electric energy, and by wire transmission to single-excitation ultrasonic oval vibration energy converter 6, single-excitation ultrasonic oval vibration energy converter is due to inverse
Piezo-electric effect, produces the ultrasonic vibration of longitudinal direction, and drives emery wheel caking 11 to produce ultrasonic vibrations, and the rotation in combination with emery wheel is right
Workpiece 24 carries out ultrasonic vibrating machining.
Claims (5)
1. noncontact rotary ultrasonic wheel grinding device, including grinding machine matrix, the main shaft being arranged on grinding machine matrix and fixation
Grinding wheel base body on the main shaft, it is characterised in that：One is provided with the grinding machine matrix mutually to be leaned on the grinding wheel base body
Near primary side magnetic core mounting seat, two relative medial surfaces are respectively equipped with ring on the grinding wheel base body and primary side magnetic core mounting seat
Shape groove；Transmitting non-contact electric energy secondary coil component is provided with the annular groove of the grinding wheel base body, in the primary side magnetic core
Transmitting non-contact electric energy primary coil component is provided with the annular groove of mounting seat；The transmitting non-contact electric energy secondary coil group
Part includes secondary pot magnetic core, secondary coil and solidification filler, and the secondary coil solidification filler is installed on secondary tank
In type magnetic core；The transmitting non-contact electric energy primary coil component includes primary side pot core, secondary coil and solidification filling
Agent, the primary coil solidification filler is installed in primary side pot magnetic core；The primary side magnetic core is put down with secondary magnetic core end face
Row is relative, and both end face relative gaps are 0.5-2mm；A circle is uniformly distributed in the grinding wheel base body wheel rim end face circumferencial direction to change
Energy device mounting hole, each annular groove of the transducer mounting hole with the grinding wheel base body is communicated, in each transducer
Single-excitation ultrasonic oval vibration energy converter is installed, the lead-out wire of the secondary coil is electrically connected with the single-excitation ultrasonic oval vibration energy converter in mounting hole；
The single-excitation ultrasonic oval vibration energy converter include front shroud, back shroud and the piezoelectric ceramic piece that is fixed between front shroud and back shroud and
Electrode slice, is connected with a ultrasonic transformer on the front shroud, and emery wheel caking is provided with the ultrasonic transformer.
2. noncontact rotary ultrasonic wheel grinding device according to claim 1, it is characterised in that：The front shroud and change
Width bar uses mode connects for screw, and the section of the front shroud and the cross sectional shape of ultrasonic transformer are smooth curve, and front shroud with
The cross-sectional width of the junction of ultrasonic transformer is less than the width extended to both sides.
3. noncontact rotary ultrasonic wheel grinding device according to claim 1, it is characterised in that：The transducer is installed
Hole is stepped hole, and the back shroud is located in the diameter holes of the stepped hole, and one is provided with the large diameter hole of the stepped hole
The screw clamp plate of front shroud upper flange is compressed and fixes, the screw clamp plate is connected with the stepped hole screw thread.
4. the noncontact rotary ultrasonic wheel grinding device according to claim 1,2 or 3, it is characterised in that：One circle
Transducer mounting hole is x circular hole, wherein 18 x 30.
5. the noncontact rotary ultrasonic wheel grinding device according to claim 1,2 or 3, it is characterised in that：The emery wheel
Caking is adhesively fixed on the ultrasonic transformer front end face of single-excitation ultrasonic oval vibration energy converter using bonding agent, forms wheel grinding face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710238373.6A CN106863027A (en) | 2017-04-13 | 2017-04-13 | A kind of noncontact rotary ultrasonic wheel grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710238373.6A CN106863027A (en) | 2017-04-13 | 2017-04-13 | A kind of noncontact rotary ultrasonic wheel grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106863027A true CN106863027A (en) | 2017-06-20 |
Family
ID=59163703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710238373.6A Pending CN106863027A (en) | 2017-04-13 | 2017-04-13 | A kind of noncontact rotary ultrasonic wheel grinding device |
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| Country | Link |
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| CN (1) | CN106863027A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199490A (en) * | 2018-01-03 | 2018-06-22 | 中国石油集团西部钻探工程有限公司 | Signal and power transfer outer ring and guiding pipe nipple |
| CN108500723A (en) * | 2018-05-21 | 2018-09-07 | 广州汇专工具有限公司 | Integrated electromagnetic emits holder and integrated electromagnetic emitter |
| CN112837882A (en) * | 2021-01-07 | 2021-05-25 | 湘潭大学 | Magnetorheological gel flexible grinding wheel |
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| CN201026579Y (en) * | 2006-07-10 | 2008-02-27 | 宁波工程学院 | Complex grinding device for ultrasound wave and magnetic grains |
| CN101279629A (en) * | 2008-05-27 | 2008-10-08 | 谢炎民 | Electric bicycle wheel disc for non-contact power torque measurement |
| CN204934742U (en) * | 2015-08-15 | 2016-01-06 | 宇环数控机床股份有限公司 | A kind of rotary ultrasonic machining device based on noncontact Energy Transfer |
| CN105397920A (en) * | 2015-10-21 | 2016-03-16 | 清华大学 | Giant magnetostrictive rotary ultrasonic vibration knife handle |
| CN106493647A (en) * | 2016-12-13 | 2017-03-15 | 华侨大学 | A kind of axial ultrasonic vibration auxiliary cup emery wheel and its using method |
-
2017
- 2017-04-13 CN CN201710238373.6A patent/CN106863027A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201026579Y (en) * | 2006-07-10 | 2008-02-27 | 宁波工程学院 | Complex grinding device for ultrasound wave and magnetic grains |
| CN101279629A (en) * | 2008-05-27 | 2008-10-08 | 谢炎民 | Electric bicycle wheel disc for non-contact power torque measurement |
| CN204934742U (en) * | 2015-08-15 | 2016-01-06 | 宇环数控机床股份有限公司 | A kind of rotary ultrasonic machining device based on noncontact Energy Transfer |
| CN105397920A (en) * | 2015-10-21 | 2016-03-16 | 清华大学 | Giant magnetostrictive rotary ultrasonic vibration knife handle |
| CN106493647A (en) * | 2016-12-13 | 2017-03-15 | 华侨大学 | A kind of axial ultrasonic vibration auxiliary cup emery wheel and its using method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199490A (en) * | 2018-01-03 | 2018-06-22 | 中国石油集团西部钻探工程有限公司 | Signal and power transfer outer ring and guiding pipe nipple |
| CN108500723A (en) * | 2018-05-21 | 2018-09-07 | 广州汇专工具有限公司 | Integrated electromagnetic emits holder and integrated electromagnetic emitter |
| CN108500723B (en) * | 2018-05-21 | 2024-03-22 | 汇专科技集团股份有限公司 | Integrated electromagnetic emission bracket and integrated electromagnetic emission device |
| CN112837882A (en) * | 2021-01-07 | 2021-05-25 | 湘潭大学 | Magnetorheological gel flexible grinding wheel |
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Application publication date: 20170620 |