CN202021506U - Magnetic-liquid magnetostriction ultrasonic vibration finishing processing device - Google Patents
Magnetic-liquid magnetostriction ultrasonic vibration finishing processing device Download PDFInfo
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- CN202021506U CN202021506U CN2010205112975U CN201020511297U CN202021506U CN 202021506 U CN202021506 U CN 202021506U CN 2010205112975 U CN2010205112975 U CN 2010205112975U CN 201020511297 U CN201020511297 U CN 201020511297U CN 202021506 U CN202021506 U CN 202021506U
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The utility model relates to a magnetic-liquid magnetostriction ultrasonic vibration finishing processing device, comprising a polishing groove, a square wave generator and an amplifier. Magnetic liquids that are mixed with non-magnetic grinding materials and anti-rusting agents are placed in the polishing groove, which is externally wound with a conical coil. By applying a square wave impulse voltage across two ends of the conical coil via the amplifier, the square wave generator enables the conical coil to generate alternating gradient magnetic field. The alternating high-frequency gradient magnetic field is applied to cause ultrasonic vibration, so as to allow the relative movement between a workpiece surface and a grinding layer formed by the grinding materials, so that the process of precisely finishing workpieces with complicated shapes can be implemented. In addition, the finishing process has the automatic characteristic.
Description
Technical field
The utility model relates to a kind of polishing processing unit (plant), particularly relates to a kind of magnetic liquid magnetostriction ultrasonic vibration polishing processing unit (plant).
Background technology
The surface that is made of shaped faces such as ditch, groove, hole, prism, pyramid, narrow slit and plane or curved surface is called patterned surface, in the manufacturing of all kinds of accurate workpiece, surface roughness to patterned surface proposes high requirement more and more, Jing Mi injection mold for example, for guaranteeing the injection moulding quality, not only the die face that relates to the moulding surface there is high requirement, even the surface roughness of injection molding channel is also had very high requirement.
Patterned surface is present in mould manufacturing field in a large number, in Mould Machining in order to eliminate the vestige that process tool and spark machined stay at die surface, obtain smooth surface, polishing processing (being polishing technology) becomes requisite important process, change the finishing method that mild free form surface generally at first adopts mechanization for large-area plane and curvature, auxiliary then with artificial polishing, realize the polishing processing on surface, but, for the mould structureization surface, because its structure is special, polishing tool is difficult to touch well its surface and processes, to the surface that these instruments are difficult to contact, still lack effective polishing processing at present, especially mirror processing method can not address this problem well even operate by hand.Therefore to the polishing processing on mould structure surface, be badly in need of providing solution effectively especially.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of magnetic liquid magnetostriction ultrasonic vibration polishing processing unit (plant), can carry out polishing processing to complicated surface.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of magnetic liquid magnetostriction ultrasonic vibration polishing processing unit (plant) is provided, comprise polishing trough, square-wave generator and amplifier, be placed with the magnetic liquid that is mixed with non magnetic abrasive material and antirust agent in the described polishing trough, be around with the taper coil; Described square-wave generator applies square wave pulse voltage by described amplifier at described taper coil two ends.
Described polishing trough be shaped as straight tubular.
Described magnetic liquid is by the Fe of 10nm
3O
4Solia particle is prepared from poly alpha olefine synthetic oil by surfactant-dispersed.
Described non magnetic abrasive material is a carborundum.
Described amplifier passes through independently regulated power supply circuit supply; Described regulated power supply circuit is made up of the regulating circuit, bridge rectifier and the filter circuit that link to each other successively.
Described taper coil by three-way and around the mode coiling form.
Described polishing trough opening part is placed with the piezoelectric ceramic transducer that links to each other with oscillograph; Described oscillograph links to each other with the output of described amplifier.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the utility model compared with prior art, have following advantage and good effect: because can change rapidly in the rheologic behavio(u)r of magnetic field effect magnetic liquid, its shear yield stress and viscosity also will greatly improve, the chain structure that magnetic retention particulate wherein forms is clamped in abrasive material therebetween as binding agent, form a kind of flexible abrasive product of semi-solid state, can form excellent contact with surface of the work and form a flexible grinding layer, make surface of the work and this grinding layer generation relative motion by applying alternation high frequency gradient magnetic generation ultrasonic vibration, just can realize precise finishing processing, and process have the characteristics of automation to the complicated surface workpiece.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is amplifier circuit figure of the present utility model.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment of the present utility model relates to a kind of magnetic liquid magnetostriction ultrasonic vibration polishing processing unit (plant), as shown in Figure 1, comprises polishing trough 1, square-wave generator 2 and amplifier 3.Be placed with the magnetic liquid 4 that is mixed with non magnetic abrasive material and antirust agent in the described polishing trough 1, be around with taper coil 5.Described square-wave generator 2 applies square wave pulse voltage by described amplifier 3 at described taper coil 5 two ends.Described oscillograph 6 links to each other with the output of described amplifier 3.
After magnetic liquid is the magnetic retention particulate parcel layer of surface active agent molecule that adopts about diameter 10 (nm), be evenly dispersed in the stable colloidal solution that forms in the carrier fluids such as water, oil, fat, magnetic liquid had both had ferromagnetic ferromagnetism, the flowability that general liquid is arranged again is a kind of specific function liquid with hard magnetization character.The non magnetic abrasive material and the antirust agent of proper proportion are distributed in the magnetic liquid, this liquid presents the steady suspension state under the situation that does not have the magnetic field effect, but the rheologic behavio(u)r of this liquid can change rapidly under the effect of magnetic field, its shear yield stress and viscosity also will greatly improve, the chain structure that magnetic retention particulate wherein forms is clamped in abrasive material therebetween as binding agent, form a kind of flexible abrasive product of semi-solid state, this grinding tool can form a flexible grinding layer at contacted surface of the work with it, make surface of the work and this grinding layer generation relative motion by applying alternation high frequency gradient magnetic generation ultrasonic vibration, just can realize precise finishing processing the complicated surface workpiece.
Further specify the utility model with a specific embodiment below.
In the present embodiment, magnetic liquid 4 is by the Fe about 10nm
3O
4Be prepared from poly alpha olefine synthetic oil by surfactant-dispersed; Non magnetic abrasive material is a carborundum, can require to select the carborundum of 100 orders, 120 orders etc. according to the processing work surface roughness.
As shown in Figure 2, make tapered coil 5 produce alternating gradient-changing magnetic field, the electric current of then importing taper coil 5 is necessary for sawtooth current, produce sawtooth current, need at taper coil 5 two ends in addition square wave pulse voltage, so circuit is made up of the square-wave generator 2 of frequency adjustable and amplifier 3.In order to make driving power variable, amplifier 3 is by regulated power supply circuit supply independently.This regulated power supply circuit is made up of the regulating circuit, bridge rectifier and the filter circuit that link to each other successively.
Select 0.25m for use
3Straight tube is as polishing trough 1, in order to weaken the influence of Kelvin effect, the enamel-covered wire that adopts φ=0.47mm with three-way and around mode, coiling goes out the tapered coil 5 of a ω=2000 circles, the inductance L of taper coil 5 should be 4mH.Magnetic field gradient on the solenoid axis direction depends on taper coil 5 cavity size, the taper coil 5 radius rates of decay, taper coil 5 numbers of turn and solenoid current.
As shown in Figure 1, add man-hour, the magnetic liquid 4 that will be mixed with non magnetic abrasive material (being carborundum) and antirust agent injects the straight tubular polishing trough 1 that is wound with taper coil 5, and a workpiece to be processed 7 is put into magnetic liquid 4.Piezoelectric ceramic transducer lies in the opening part of straight tubular polishing trough 1.Square-wave generator 2 provides a sawtooth pulse electric current by amplifier 3 for taper coil 5, the sawtooth pulse electric current produces alternating gradient-changing magnetic field by taper coil 5, alternating gradient-changing magnetic field acts on magnetic liquid 4, make the interior pressure generation alternation of magnetic liquid 4, thereby make the volume of magnetic liquid 4 take place flexible.Because magnetic liquid 4 is placed in the straight-cylindrical polishing trough 1, so magnetic liquid 4 sectional areas are constant, magnetic liquid 4 produces flexible in short transverse, this flexible mechanical oscillation of magnetic liquid 4 that show as in short transverse, thereby the excitation air produces sound wave, sound wave is converted into the signal of telecommunication by piezoelectric ceramic transducer, this signal of telecommunication can show by the oscillograph 6 that links to each other with piezoelectric ceramic transducer, detect the magnetostrictive effect of magnetic liquid 4 with this, control polishing processing better processing work 7.Above processing work 7, can also link to each other, add man-hour carrying out polishing, open motor and make processing work 7 rotations, thereby realize Compound Finishing processing work 7 with the output shaft of motor.
Claims (6)
1. a magnetic liquid magnetostriction ultrasonic vibration polishing processing unit (plant) comprises polishing trough (1), square-wave generator (2) and amplifier (3), it is characterized in that, is placed with magnetic liquid (4) in the described polishing trough (1), is around with taper coil (5); Described square-wave generator (2) applies square wave pulse voltage by described amplifier (3) at described taper coil (5) two ends.
2. magnetic liquid magnetostriction ultrasonic vibration polishing processing unit (plant) according to claim 1 is characterized in that, described polishing trough (1) be shaped as straight tubular.
3. magnetic liquid magnetostriction ultrasonic vibration polishing processing unit (plant) according to claim 1 is characterized in that described non magnetic abrasive material is a carborundum.
4. magnetic liquid magnetostriction ultrasonic vibration polishing processing unit (plant) according to claim 1 is characterized in that, described amplifier (3) passes through independently regulated power supply circuit supply; Described regulated power supply circuit is made up of the regulating circuit, bridge rectifier and the filter circuit that link to each other successively.
5. magnetic liquid magnetostriction ultrasonic vibration polishing processing unit (plant) according to claim 1 is characterized in that, described taper coil (5) by three-way and around the mode coiling form.
6. according to the described magnetic liquid magnetostriction of arbitrary claim ultrasonic vibration polishing processing unit (plant) among the claim 1-5, it is characterized in that described polishing trough (1) opening part is placed with the piezoelectric ceramic transducer that links to each other with oscillograph (6); Described oscillograph (6) links to each other with the output of described amplifier (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205112975U CN202021506U (en) | 2010-08-31 | 2010-08-31 | Magnetic-liquid magnetostriction ultrasonic vibration finishing processing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205112975U CN202021506U (en) | 2010-08-31 | 2010-08-31 | Magnetic-liquid magnetostriction ultrasonic vibration finishing processing device |
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| CN202021506U true CN202021506U (en) | 2011-11-02 |
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| CN2010205112975U Expired - Fee Related CN202021506U (en) | 2010-08-31 | 2010-08-31 | Magnetic-liquid magnetostriction ultrasonic vibration finishing processing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033779A (en) * | 2014-09-01 | 2015-11-11 | 哈尔滨工业大学深圳研究生院 | Ultrasonic processing system dynamic tracking coupling device |
| CN109048506A (en) * | 2018-08-10 | 2018-12-21 | 太原理工大学 | A kind of magneto liquid-magnetic abrasive tool surface finishing device and method |
| CN113231958A (en) * | 2021-06-29 | 2021-08-10 | 无锡兴华衡辉科技有限公司 | Chemical mechanical polishing method of non-mechanical contact type magnetic in-situ ultrasonic vibration |
| CN113561047A (en) * | 2021-09-23 | 2021-10-29 | 长沙理工大学 | Method and device for compound polishing of inner surface of hole |
| CN115105161A (en) * | 2022-06-24 | 2022-09-27 | 山东大学 | Method and system for driving micro thrombus robot under uniform-strength alternating gradient magnetic field |
-
2010
- 2010-08-31 CN CN2010205112975U patent/CN202021506U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033779A (en) * | 2014-09-01 | 2015-11-11 | 哈尔滨工业大学深圳研究生院 | Ultrasonic processing system dynamic tracking coupling device |
| CN105033779B (en) * | 2014-09-01 | 2018-01-30 | 哈尔滨工业大学深圳研究生院 | The dynamic tracking and matching device of Ultrasonic machining system |
| CN109048506A (en) * | 2018-08-10 | 2018-12-21 | 太原理工大学 | A kind of magneto liquid-magnetic abrasive tool surface finishing device and method |
| CN113231958A (en) * | 2021-06-29 | 2021-08-10 | 无锡兴华衡辉科技有限公司 | Chemical mechanical polishing method of non-mechanical contact type magnetic in-situ ultrasonic vibration |
| CN113231958B (en) * | 2021-06-29 | 2022-03-18 | 无锡兴华衡辉科技有限公司 | Chemical mechanical polishing method of non-mechanical contact type magnetic in-situ ultrasonic vibration |
| CN113561047A (en) * | 2021-09-23 | 2021-10-29 | 长沙理工大学 | Method and device for compound polishing of inner surface of hole |
| CN115105161A (en) * | 2022-06-24 | 2022-09-27 | 山东大学 | Method and system for driving micro thrombus robot under uniform-strength alternating gradient magnetic field |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20140831 |
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| EXPY | Termination of patent right or utility model |