CN204262985U - A kind of single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser - Google Patents
A kind of single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser Download PDFInfo
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- CN204262985U CN204262985U CN201420763731.7U CN201420763731U CN204262985U CN 204262985 U CN204262985 U CN 204262985U CN 201420763731 U CN201420763731 U CN 201420763731U CN 204262985 U CN204262985 U CN 204262985U
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Abstract
The utility model discloses a kind of single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser, comprise housing unit, the single-excitation ultrasonic oval vibration energy converter be placed in housing unit, elliptical vibration modal transducer, the diamond pen being arranged on elliptical vibration modal transducer front end, the bracing frame connected with housing unit and the arrangement for adjusting height be arranged on bracing frame.Described housing unit comprises front apron, outer sleeve and backboard; Described single-excitation ultrasonic oval vibration energy converter comprises bolt and is set in back shroud, piezoelectric ceramic piece, electrode slice and the front shroud on bolt successively, and back shroud, piezoelectric ceramic piece, electrode slice and front shroud are connected compression by bolt by back shroud and front shroud; Described elliptical vibration modal transducer is arranged on the front end of front shroud, described elliptical vibration modal transducer entirety is cylindrical, both sides, front and back offer three rectangular indentation be dislocatedly distributed, and the longitudinal ultrasonic vibration that single-excitation ultrasonic oval vibration energy converter produces can be converted to the vertical curved composite ultrasonic elliptical vibratory of elliptical vibration modal transducer end and diamond pen by this elliptical vibration modal transducer.
Description
Technical field
The utility model relates to the precise high-efficiency trimming device of the compact-type hard grinding wheel such as skive and CBN emery wheel, especially relates to a kind of wheel dresser utilizing single-electrical signal to encourage ultrasonic elliptical vibratory.
Background technology
High strength, high rigidity compact-type emery wheel adopt traditional method for trimming to be difficult to reach desirable wheel face quality and dressing efficiency.Adopt common method for trimming, soon, dressing efficiency is low, and wheel face quality cannot ensure for dressing tool and abrasion of grinding wheel, and finishing cost is high.For the compact-type diamond grinding wheel dressing technology of various hard brittle material processing object exploitation, although to some extent solve the finishing problem of emery wheel, but still there is dressing accuracy and the limitation such as dressing efficiency is low or trimming device is expensive, working service is inconvenient.
Ultrasonic elliptical vibratory has in fields such as UVC, ultra-sonic welded, ultrasonic grinding, ultrasonic polishing, linear ultrasonic motor and rotary ultrasonic motors to be applied more widely.Current researcher adopts extensional vibration mostly, twisting vibration, two kinds of vibration modes in flexural vibrations and radial vibration carry out compound to produce ultrasonic elliptical vibratory, the piezoelectric ceramic piece adopting two groups or more is needed to excite the two or more mode of oscillations producing and have certain phase difference, also be necessary for often group piezoelectric ceramic piece and be equipped with a road ultrasound-driven power supply signal, and need to control the phase difference between the ultrasound-driven power supply signal of each road, ultrasonic vibration system and Control system architecture complexity, manufacture difficulty is large, control difficulty is high, production cost is high, not easily realize microminiaturization, service behaviour is stable not, these problems constrain the application in the industrial production of ultrasonic elliptical vibratory transducer and popularization.
In order to overcome the deficiency existed in existing common dressing technique, and give full play to the advantage of single-electrical signal excitation ultrasonic elliptical vibratory, publication number is patent document discloses " one singly encourages elliptical ultrasonic vibration finishing device " of CN102120302 A, proposes a kind of by cylindrical end, rectangle coupling part with there is ramp structure to vibrate the compound elliptical vibration ultrasonic transformer that forms of conversion three sections, end.This device can improve the effect of crushing to a certain extent, but because this device flexural vibrations amplitude is less, its finishing effect improves obvious not, in order to improve single-electrical signal excitation ultrasonic elliptical vibratory finishing effect further, give full play to the advantage of single-electrical signal excitation ultrasonic elliptical vibratory, the utility model have studied a kind of novel single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser.
Summary of the invention
The utility model provides a kind of novel single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser, and object is to overcome the deficiency, the finishing cost reducing compact-type hard grinding wheel, the operating efficiency improving ultrasonic elliptical vibratory wheel dresser and the finishing effect that exist in existing common dressing technique and existing single-electrical signal excitation ultrasonic elliptical vibratory trimming device.
A kind of single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser, comprise housing unit, the single-excitation ultrasonic oval vibration energy converter be placed in housing unit, elliptical vibration modal transducer, the diamond pen being arranged on elliptical vibration modal transducer front end, the bracing frame connected with housing unit and the arrangement for adjusting height be arranged on bracing frame; Described housing unit comprises front apron, outer sleeve and backboard; Described single-excitation ultrasonic oval vibration energy converter outline is cylindrical, it comprises bolt and is set in back shroud, piezoelectric ceramic piece, electrode slice and the front shroud on bolt successively, front shroud is provided with the ring flange connected with housing unit, back shroud, piezoelectric ceramic piece, electrode slice and front shroud are connected compression by bolt by back shroud and front shroud, constitute the energy conversion part of single-excitation ultrasonic oval vibration energy converter, the ultrasonic electric signal that ultrasonic-frequency power supply exports can be converted to the longitudinal ultrasonic vibration of single-excitation ultrasonic oval vibration energy converter.
Described elliptical vibration modal transducer and front shroud are made into the front end that is integrally provided in front shroud, or the welding of elliptical vibration modal transducer is arranged on the front end of front shroud, or elliptical vibration modal transducer is arranged on the front end of front shroud by screw attachment, described elliptical vibration modal transducer entirety is cylindrical, and both sides, front and back offer three rectangular indentation be dislocatedly distributed; Transition arc is provided with in the connection place of elliptical vibration modal transducer and ultrasonic transducer front shroud.
The sub-assembly that elliptical vibration modal transducer is formed after being arranged on single-excitation ultrasonic oval vibration energy converter front end is called single-electrical signal excitation ultrasonic elliptical vibratory transducer, before and after elliptical vibration modal transducer, the object of rectangular indentation is offered in both sides is mode of oscillation in order to change single-electrical signal excitation ultrasonic elliptical vibratory transducer, make its longitudinal vibration mode frequency and flexural vibration mode frequency close to or equal.
Diamond pen is by welding or connected the front end being arranged on elliptical vibration modal transducer by a joint bolt; After ultrasonic vibrational energy is delivered to elliptical vibration modal transducer end from single-excitation ultrasonic oval vibration energy converter, be converted to the vertical curved composite ultrasonic elliptical vibratory of extensional vibration and the flexural vibrations compound with certain phase difference, namely be converted to the vertical curved composite ultrasonic elliptical vibratory of elliptical vibration modal transducer end, and drive diamond pen to do ultrasonic elliptical vibratory together with elliptical vibration modal transducer end.
Single-excitation ultrasonic oval vibration energy converter is placed in housing unit, the ring flange of single-excitation ultrasonic oval vibration energy converter is arranged in the fovea superior seam of outer sleeve, front apron is arranged on the opposite side of ring flange, fixation is risen to whole single-excitation ultrasonic oval vibration energy converter, backboard is arranged on the rear side of outer sleeve, prevent the foreign material such as dust, iron filings from entering in housing unit, affect single-excitation ultrasonic oval vibration energy converter service behaviour; Compare the single-electrical signal excitation ultrasonic elliptical vibratory trimming device that existing document is introduced, this single-electrical signal excitation ultrasonic elliptical vibratory trimming device has that power capacity is large, energy conversion efficiency is high, flexural vibrations amplitude is large, structure simple, easy to manufacture, cost is low, the rigidity of structure is large, control-driven system is simple and vibrocutting stable performance such as to stablize at the advantage.The helix that this utility model becomes normal diamond nib be in addition trimmed to along grinding wheel spindle to high-frequency ultrasonic elliptical vibration track and the compound of helix repair, within the unit interval, ultrasonic elliptical vibratory has increased substantially the motion path of diamond nib, and significantly broaden the width of single crushing, therefore can increase substantially dressing efficiency and crushing quality.
Further, described single-excitation ultrasonic oval vibration energy converter only has one group of extensional vibration piezoelectric ceramic piece.
Further, described single-excitation ultrasonic oval vibration energy converter only needs a road ultrasonic electric signal excitation.
Further, the operating frequency range of described single-excitation ultrasonic oval vibration energy converter is 18kHz-40kHz.
The utility model have employed the vertical curved composite ultrasonic elliptical vibratory that mechanical oscillation MODAL TRANSFORMATION OF A mechanism is converted to the extensional vibration of single-excitation ultrasonic oval vibration energy converter elliptical vibration modal transducer end and vibration head, simplify the overall structure of single-electrical signal excitation ultrasonic elliptical vibratory conditioning system, greatly reduce the complexity of vibrational system, reduce manufacture, assembly difficulty and production cost; This utility model only needs a road control circuit and ultrasonic-frequency power supply to encourage in addition, control difficulty is low, avoid the complicated ultrasonic-frequency power supply development cost that two-phase or multiphase ultrasonic vibration is compounded to form elliptical vibration transducer, simplify control circuit and ultrasonic-frequency power supply structure, reduce control circuit and ultrasonic-frequency power supply cost, be easy to realize the integrated of control circuit and ultrasonic-frequency power supply, improve system works reliability, stable work in work, has a extensive future.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model structural representation.
Fig. 2 is the top view of the utility model structural representation.
Fig. 3 is the front view of single-electrical signal excitation ultrasonic elliptical vibratory transducer in the utility model.
Fig. 4 is the top view of single-electrical signal excitation ultrasonic elliptical vibratory transducer in the utility model.
Fig. 5 is application example schematic diagram of the present utility model.
Number in the figure illustrates: 1. bolt, 2. back shroud, 3. piezoelectric ceramic piece, 4. electrode slice, 5. front shroud, 6. ring flange, 7. elliptical vibration modal transducer, 8. diamond pen, 9. front apron, 10. outer sleeve, 11. backboards, 12. arrangement for adjusting height, 13. bracing frames, 14. ultrasonic-frequency power supplies, 15. workpiece, 16. rectangular indentation.
Detailed description of the invention
Shown in composition graphs 1,2,3,4, a kind of single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser comprises housing unit, the single-excitation ultrasonic oval vibration energy converter be placed in housing unit, elliptical vibration modal transducer 7, the diamond pen 8 being arranged on elliptical vibration modal transducer 7 front end, the bracing frame 13 connected with housing unit and the arrangement for adjusting height 12 be arranged on bracing frame 13; Housing unit comprises front apron 9, outer sleeve 10 and backboard 11; Single-excitation ultrasonic oval vibration energy converter outline is cylindrical, it comprises bolt 1 and is set in back shroud 2, piezoelectric ceramic piece 3, electrode slice 4 and the front shroud 5 on bolt 1 successively, front shroud 5 is provided with the ring flange 6 connected with housing unit, back shroud 2, piezoelectric ceramic piece 3, electrode slice 4 and front shroud 5 are connected compression by bolt 1 by back shroud 2 and front shroud 5, constitute the energy conversion part of single-excitation ultrasonic oval vibration energy converter, the ultrasonic electric signal exported by ultrasonic-frequency power supply 14 is converted to the longitudinal ultrasonic vibration of single-excitation ultrasonic oval vibration energy converter.Single-excitation ultrasonic oval vibration energy converter only has one group of extensional vibration piezoelectric ceramic piece 3, piezoelectric ceramic transducer section diameter 30mm, and piezoelectric ceramic piece 3 is PZT-8, is of a size of:
Ф 30 × Ф 15 × 5, the sheet number of piezoelectric ceramic piece 3 is 2.
Elliptical vibration modal transducer 7 and front shroud 5 are made into the front end that an one-piece parts is arranged on front shroud 5, are provided with transition arc at elliptical vibration modal transducer 7 and the connection place of ultrasonic transducer front shroud 5.Transition arc radius is 5mm, and elliptical vibration modal transducer 7 entirety is cylindrical, and both sides, front and back offer three rectangular indentation be dislocatedly distributed 16, three rectangular indentation 16 width are 6mm, and the degree of depth is 3mm, and the distance of the centre-to-centre spacing front end face of three rectangular indentation 16 is respectively 15mm, 25mm, 35mm.
Single-excitation ultrasonic oval vibration energy converter is placed in housing unit, the ring flange 6 of single-excitation ultrasonic oval vibration energy converter is arranged in the fovea superior seam of outer sleeve 10, front apron 9 is linked together by screw and outer sleeve 10, be pressed on the opposite side of ring flange 6, play fixation to whole single-excitation ultrasonic oval vibration energy converter, backboard 11 is by the rear side of screw attachment at outer sleeve 10.
Intrinsic frequency after single-excitation ultrasonic oval vibration energy converter and elliptical vibration modal transducer 7 connect is 19.84KHz, impedance is 83 ohm, dynamic electric resistor is 19 ohm, ultrasonic-frequency power supply 14 output voltage range is 0-400V, current range is 0-4A, output frequency is 19.84 ± 0.01KHz, and ultrasonic-frequency power supply 14 has automatic frequency tracking function in designated frequency range.
During operation, shown in composition graphs 5, the electrode slice 4 of single-excitation ultrasonic oval vibration energy converter is connected with ultrasonic-frequency power supply 14, after the electrode slice 4 of single-excitation ultrasonic oval vibration energy converter accesses the signal of telecommunication of ultrasonic-frequency power supply 14 output, due to the inverse piezoelectric effect of piezoelectric ceramic piece 3, piezoelectric ceramic piece 3 will produce longitudinal ultrasonic vibration, namely the electric energy that ultrasonic-frequency power supply 14 exports is converted to longitudinal ultrasonic vibration by single-excitation ultrasonic oval vibration energy converter, and drive whole single-excitation ultrasonic oval vibration energy converter system to carry out longitudinal ultrasonic vibration, after ultrasonic vibrational energy is delivered to elliptical vibration modal transducer 7 end from single-excitation ultrasonic oval vibration energy converter, be converted to the vertical curved composite ultrasonic elliptical vibratory of extensional vibration and the flexural vibrations compound with certain phase difference, namely the vertical curved composite ultrasonic elliptical vibratory of elliptical vibration modal transducer 7 end is converted to, and drive diamond pen 8 to do ultrasonic elliptical vibratory together with elliptical vibration modal transducer 7 end.
After on-load voltage runs 10 minutes, single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser reaches stable vibration state, now the regulated output voltage of ultrasonic-frequency power supply 14 is 220V, electric current is 1.35A, use laser doppler vibrometer to record ultrasonic elliptical vibratory length semiaxis amplitude and be respectively 14.3 microns and 5.2 microns, and by the dual trace oscilloscope with lissajouf figure calculation function, graphic operation is carried out to the signal that laser doppler vibrometer records, the ultrasonic elliptical vibratory track that axial ratio is 2.73 can be obtained, meet the requirement of ultrasonic elliptical vibratory emery wheel precise dressing completely.
The utility model is applicable to being arranged on precision or the enterprising enforcement use of ultra-precision grinding machine, first by the screw hole on bracing frame 13, this single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser is arranged on grinding machine wheel-dresser, adjust it to proper height by arrangement for adjusting height 12, carry out correct tool setting.Then open ultrasonic-frequency power supply 14, adjustment operating frequency, make diamond pen 8 be in best ultrasonic elliptical vibratory state, according to the needs of crushing technique, setting dressing parameter, can start to carry out precision and ultraprecise crushing.In addition, ultrasonic-frequency power supply 14 has automatic frequency tracking function, in actual finishing process process, if due to reasons such as fair cutting change in resistance, the intrinsic frequency of ultrasonic elliptical vibratory cutting system there occurs change, the output frequency of ultrasonic-frequency power supply 14 can change thereupon and keep consistent with the intrinsic frequency of trimming device, so that bonding signal of telecommunication excitation ultrasonic elliptical vibratory trimming device is in optimum Working all the time.
Claims (6)
1. a single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser, is characterized in that: this wheel dresser comprises housing unit, the single-excitation ultrasonic oval vibration energy converter be placed in housing unit, elliptical vibration modal transducer, the diamond pen being arranged on elliptical vibration modal transducer front end, the bracing frame connected with housing unit and the arrangement for adjusting height be arranged on bracing frame; Described housing unit comprises front apron, outer sleeve and backboard; Described single-excitation ultrasonic oval vibration energy converter outline is cylindrical, it comprises bolt and is set in back shroud, piezoelectric ceramic piece, electrode slice and the front shroud on bolt successively, front shroud is provided with the ring flange connected with housing unit, back shroud, piezoelectric ceramic piece, electrode slice and front shroud are connected compression by bolt by back shroud and front shroud; Described elliptical vibration modal transducer is arranged on the front end of front shroud, described elliptical vibration modal transducer entirety is cylindrical, both sides, front and back offer three rectangular indentation be dislocatedly distributed, and are provided with transition arc in the connection place of elliptical vibration modal transducer and ultrasonic transducer front shroud.
2. single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser according to claim 1, is characterized in that: described elliptical vibration modal transducer and front shroud are made into the front end that is integrally provided in front shroud.
3. single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser according to claim 1, is characterized in that: described elliptical vibration modal transducer welding is arranged on front shroud front end.
4. single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser according to claim 1, is characterized in that: described elliptical vibration modal transducer is arranged on front shroud front end by screw attachment.
5., according to the single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser in claim 1-4 described in arbitrary, it is characterized in that: described diamond pen is arranged on the front end of elliptical vibration modal transducer by welding.
6., according to the single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser in claim 1-4 described in arbitrary, it is characterized in that: also comprise a joint bolt, for diamond pen being connected in the front end of elliptical vibration modal transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420763731.7U CN204262985U (en) | 2014-12-09 | 2014-12-09 | A kind of single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420763731.7U CN204262985U (en) | 2014-12-09 | 2014-12-09 | A kind of single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser |
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| CN204262985U true CN204262985U (en) | 2015-04-15 |
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|---|---|---|---|
| CN201420763731.7U Expired - Fee Related CN204262985U (en) | 2014-12-09 | 2014-12-09 | A kind of single-electrical signal excitation ultrasonic elliptical vibratory wheel dresser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440573A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single electrical signal excitation ultrasonic elliptic vibration grinding wheel dressing device |
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- 2014-12-09 CN CN201420763731.7U patent/CN204262985U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440573A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single electrical signal excitation ultrasonic elliptic vibration grinding wheel dressing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20171209 |