CN203457075U - Friction-variable type non-symmetrical clamping inertial piezoelectric rotation driver - Google Patents
Friction-variable type non-symmetrical clamping inertial piezoelectric rotation driver Download PDFInfo
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- CN203457075U CN203457075U CN201320378773.4U CN201320378773U CN203457075U CN 203457075 U CN203457075 U CN 203457075U CN 201320378773 U CN201320378773 U CN 201320378773U CN 203457075 U CN203457075 U CN 203457075U
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- 239000000758 substrate Substances 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 239000003205 fragrance Substances 0.000 claims 1
- 239000007858 starting material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005284 excitation Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 235000012431 wafers Nutrition 0.000 abstract 1
- 210000002683 foot Anatomy 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
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Abstract
The utility model provides a friction-variable type non-symmetrical clamping inertial piezoelectric rotation driver, wherein a metal substrate is respectively connected with two piezoelectric wafers to form a piezoelectric bimorph. One end of the metal substrate is fixedly connected with an impact mass block by a screw, and the other end of the metal substrate and a connecting piece are fixed together by means of a clamping piece under the effect of a cruciform slot pan-head screw. The clamping difference is changed by adjusting the clamping position of the metal substrate. Due to the adoption of waveform-symmetrical electric signals as excitation signals, a piezoelectric element quickly deforms to generate different periodic and bidirectional inertia impact forces. A driving element is connected with a wedge-shaped foot by a main body, wherein different frictional forces are generated when the rotation direction are varied. Therefore, the rollback phenomenon of the inertial piezoelectric rotation driver is effectively weakened and the directional rotary movement of the driver is realized. The friction-variable type non-symmetrical clamping inertial piezoelectric rotation driver has the advantages of simple structure, high reliability, no electromagnetic interference, easy generation of excitation signals, easy control and high positioning accuracy.
Description
Technical field
That the utility model belongs to is small, precision optical machinery drives field.
Background technology
In recent years, along with the fast development of micro-/ nano technology, increasing to the demand of the Driving technique of microminiature machinery in technical fields such as biomedical engineering, precision optical machinery, robot, computer, control automatically, accurate measurement, the micro-manufacture of accurate device, ultraprecise processing.As the core of micro-Driving technique, the micro-Driving technique of micro/nano level becomes the focus that people pay close attention under this demand.The accurate driving of tradition mainly adopts mechanical type, as precision lead screw pair and roll/slide guide rail, accurate spiral cotter mechanism etc., but due to the problem such as have gap, rub, creep, its precision is difficult to meet the demands, under this condition, develop many novel type of drive, such as electrostatic attraction, electromagnetic type, magnetostriction type, marmem formula and piezoelectric type etc.Piezoelectric ceramic is a kind of functional material that is widely used in accurate micro-driving field, have low in energy consumption, without advantages such as electromagnetic interference, fast response times, the driver that the piezoelectric of take is driving element becomes an important branch of precise driving device in recent years.And inertia-type piezoelectric actuator because of its in impulse stroke, resolution, operating frequency, movement velocity, frequency response, manufacturing cost, be subject to the aspects such as the stagnant ring draw of piezoelectric element degree to there is unique advantage to have developed into the pith that Precision Piezoelectric drives.
Existing piezoelectric inertia driver is the piezoelectric vibrator of the symmetrical clamping of this Asymmetric Electric signal driver of application sawtooth signal mostly, but this actuator drive signal is not easy to produce, mechanism is not easy to control, and has the shortcomings such as larger rollback motion.
In view of the existing problem of current piezoelectric inertia driver, the utility model proposes a kind of asymmetric clamping inertial piezoelectric rotating driver, it,, under the excitation of the balancing waveform signal of telecommunication, produces different inertia actuating forces, makes piezoelectric actuator produce the bidirectional-movement with displacement difference.And by being provided with the wedge shape of the ditch dug with a plow effect sufficient structure that rubs, change the frictional force of driver different motion direction, realize the directional-rotation motion of driver.
Summary of the invention
Technical problem to be solved by this invention is: by the design of asymmetric fixture, the inertial impact force that adopts the balancing waveform signal of telecommunication to obtain different directions as pumping signal is poor, and the design by special construction wedge shape foot changes the frictional force of different motion direction, realize the directional-rotation motion of driver.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Described piezoelectric chip (3) adopts conducting resinl in parallel bonding with metal substrate (4).
One end of described metal substrate (4) and connector (9) link together by cramping body (6) and the effect of tack cross grooving screw (5), and the other end is by tack cross grooving screw (2) and nut (10) quality of connection piece (1).
On described cramping body (6), there is the screwed hole adapting with described tack cross grooving screw (5).
Described cramping body (6) adopts packaged type to be connected with connector (9).
Described connector (9) adopts unsymmetric structure to arrange, makes two piezoelectric bimorphs about main body (8) center bilateral symmetry during installation.
Described metal substrate (4) and mass (1) all adopt and are arranged symmetrically with in main body (8) both sides.
Described main body (8) and taper roll bearing (19), supporting bracket (15) all adopts interference fit with taper roll bearing (19).
Four described wedge shape friction foot (12) structures are identical, and all foots are all in same level.
Described base plate (15) is fixed at the upper field relocatable that adopts of pillar (11).
The invention has the beneficial effects as follows: the described asymmetric clamping inertial piezoelectric of change friction-type rotating driver is by the design of asymmetric fixture, adopt the excitation of the balancing waveform signal of telecommunication, effectively weakened that symmetrical clamping activation configuration is complicated, sawtooth waveforms drives that signal is not easy to produce, manageable shortcoming is not allowed by mechanism.By the rub design of sufficient structure of the wedge shape with ditch dug with a plow effect, effectively weakened the phenomenon of inertial piezoelectric driver rollback.
Accompanying drawing explanation
Fig. 1 is for becoming the overall structure schematic diagram of the asymmetric clamping inertial piezoelectric of friction-type rotating driver;
Fig. 2 is for becoming the overall structure left view of the asymmetric clamping inertial piezoelectric of friction-type rotating driver;
Fig. 3 is for becoming the main cutaway view of the asymmetric clamping inertial piezoelectric of friction-type rotating driver;
Fig. 4 is for becoming the vertical view of the asymmetric clamping inertial piezoelectric of friction-type rotating driver.
Embodiment
As shown in Figure 1 and Figure 4, in device, screw used is tack cross grooving screw, connector (9) links together by tack cross grooving screw (7) and the effect of nut (20) with main body (8), metal substrate one end and connector (9) and cramping body (6) link together by the effect of tack cross grooving screw (5), cramping body (6) can move along the length direction of connector (9), thereby change clamping extent, and then change the piezoelectric bimorph size of inertial impact force in different directions, with this, form the displacement difference of piezoelectric bimorph different motion direction.
Adopt supporting bracket (13) to support taper roll bearing (19) and main body (8) is carried out robust driver, between supporting bracket (13) and main body (8), adopt taper roll bearing (19) to be connected.Chassis (14) is connected by tack cross grooving screw (22) with main body (8), it is upper that wedge shape foot (12) is fixed on chassis (14) by tack cross grooving screw (23), and pillar (11) is fixed together by tack cross grooving screw (17) with supporting bracket (13).
By adjusting the fixed position of base plate (15) on pillar (11), can change the pressure between wedge shape foot (12) and base plate (15), and then the frictional force of change inertial piezoelectric rotating driver in rotary course, thereby weakened the phenomenon of inertial piezoelectric rotating driver rollback, realized the directional-rotation of inertial piezoelectric circulator.
Claims (7)
1. one kind becomes the luxuriant and rich with fragrance symmetrical clamping inertial piezoelectric rotating driver of friction-type, it comprises metal substrate (4), cramping body (6), connector (9), main body (8), supporting bracket (13), pillar (11), chassis (14), wedge shape foot (12) and base plate (15), it is characterized in that: described inertia starter adopts asymmetric clamping, described inertial piezoelectric driver is provided with wedge shape foot structure.
2. the asymmetric clamping inertial piezoelectric of a pick change friction-type claimed in claim 1 rotating driver, is characterized in that connector (9) adopts unsymmetric structure to arrange, makes piezoelectric bimorph about main center's bilateral symmetry.
3. the asymmetric clamping inertial piezoelectric of change friction-type according to claim 1 rotating driver, is characterized in that the contact-making surface of main body (8) and connector (9) adopts non-arc surface completely, and the concentricity of being convenient to two structures coordinates and fixes.
4. the asymmetric clamping inertial piezoelectric of change friction-type according to claim 1 rotating driver, is characterized in that the fixedly employing packaged type cramping body (6) of metal substrate (4) and connector (9) is fixing.
5. piece asymmetric clamping inertial piezoelectric of pick change friction-type claimed in claim 1 rotating driver, it is characterized in that base plate (15) adopts packaged type level to fix on pillar, be convenient to regulate the contact between wedge shape foot (12) and base plate (15).
6. the asymmetric clamping inertial piezoelectric of change friction-type according to claim 1 rotating driver, is characterized in that by the design of supporting bracket (13), robust driver.
7. the asymmetric clamping inertial piezoelectric of change friction-type according to claim 1 rotating driver, is characterized in that rotating driver adopts balancing waveform signal as pumping signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320378773.4U CN203457075U (en) | 2013-06-19 | 2013-06-19 | Friction-variable type non-symmetrical clamping inertial piezoelectric rotation driver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320378773.4U CN203457075U (en) | 2013-06-19 | 2013-06-19 | Friction-variable type non-symmetrical clamping inertial piezoelectric rotation driver |
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| CN203457075U true CN203457075U (en) | 2014-02-26 |
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| CN201320378773.4U Expired - Fee Related CN203457075U (en) | 2013-06-19 | 2013-06-19 | Friction-variable type non-symmetrical clamping inertial piezoelectric rotation driver |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960659A (en) * | 2015-07-20 | 2015-10-07 | 哈尔滨工业大学 | Steering engine directly driven by piezoelectric motors |
| CN105553329A (en) * | 2016-02-03 | 2016-05-04 | 浙江师范大学 | Inertia piezoelectric rotation driver with biased piezoelectric vibrator |
| CN105827147A (en) * | 2016-06-12 | 2016-08-03 | 吉林大学 | Inertia piezoelectric driving motor |
| CN108512457A (en) * | 2018-04-19 | 2018-09-07 | 西安交通大学 | Linear inertial piezoelectric actuator with displacement perceptional function and start method |
| CN111130382A (en) * | 2020-01-08 | 2020-05-08 | 浙江师范大学 | Driving device with spring mechanism |
| CN111162691A (en) * | 2020-01-08 | 2020-05-15 | 浙江师范大学 | Rotary motion driving device |
| CN111181437A (en) * | 2020-01-08 | 2020-05-19 | 浙江师范大学 | Variable friction driving device |
| CN111193436A (en) * | 2020-01-08 | 2020-05-22 | 浙江师范大学 | Stepping type driving device |
| CN111193435A (en) * | 2020-01-08 | 2020-05-22 | 浙江师范大学 | Rotary actuator |
-
2013
- 2013-06-19 CN CN201320378773.4U patent/CN203457075U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960659A (en) * | 2015-07-20 | 2015-10-07 | 哈尔滨工业大学 | Steering engine directly driven by piezoelectric motors |
| CN105553329A (en) * | 2016-02-03 | 2016-05-04 | 浙江师范大学 | Inertia piezoelectric rotation driver with biased piezoelectric vibrator |
| CN105553329B (en) * | 2016-02-03 | 2018-06-22 | 浙江师范大学 | A kind of inertial piezoelectric rotating driver with biasing piezoelectric vibrator |
| CN105827147A (en) * | 2016-06-12 | 2016-08-03 | 吉林大学 | Inertia piezoelectric driving motor |
| CN108512457A (en) * | 2018-04-19 | 2018-09-07 | 西安交通大学 | Linear inertial piezoelectric actuator with displacement perceptional function and start method |
| CN108512457B (en) * | 2018-04-19 | 2019-10-18 | 西安交通大学 | Linear inertial piezoelectric actuator and actuation method with displacement perceptional function |
| CN111130382A (en) * | 2020-01-08 | 2020-05-08 | 浙江师范大学 | Driving device with spring mechanism |
| CN111162691A (en) * | 2020-01-08 | 2020-05-15 | 浙江师范大学 | Rotary motion driving device |
| CN111181437A (en) * | 2020-01-08 | 2020-05-19 | 浙江师范大学 | Variable friction driving device |
| CN111193436A (en) * | 2020-01-08 | 2020-05-22 | 浙江师范大学 | Stepping type driving device |
| CN111193435A (en) * | 2020-01-08 | 2020-05-22 | 浙江师范大学 | Rotary actuator |
| CN111162691B (en) * | 2020-01-08 | 2023-08-25 | 浙江师范大学 | Rotary motion driving device |
| CN111181437B (en) * | 2020-01-08 | 2023-09-29 | 浙江师范大学 | Variable friction driving device |
| CN111193436B (en) * | 2020-01-08 | 2024-04-23 | 浙江师范大学 | Stepping driving device |
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Granted publication date: 20140226 Termination date: 20140619 |
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| EXPY | Termination of patent right or utility model |