CN109834557A - A kind of piezoelectric actuator friction plate automatically grinding device and application method - Google Patents
A kind of piezoelectric actuator friction plate automatically grinding device and application method Download PDFInfo
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- CN109834557A CN109834557A CN201910243423.9A CN201910243423A CN109834557A CN 109834557 A CN109834557 A CN 109834557A CN 201910243423 A CN201910243423 A CN 201910243423A CN 109834557 A CN109834557 A CN 109834557A
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- friction plate
- piezoelectric actuator
- sand paper
- grinding device
- pressure sensor
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- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a kind of piezoelectric actuator friction plate automatically grinding device and application methods, including feed arrangement, pressure measuring unit, friction plate grinding device and controller, feed arrangement driving pressure measurement device moves back and forth, pressure measuring unit is equipped with sand paper, friction plate grinding device is arranged in sand paper side, it is provided with friction plate on friction plate grinding device and friction plate is driven to rotate, feed arrangement and friction plate grinding device are all electrically connected with the controller, pressure measuring unit shows pressure by pressure sensor digital display meter and pressure signal is fed back to controller, to control piezoelectric actuated rotation, pass through the mobile control pressure of sand paper, by fixing and rotating the rotor with friction plate, the rotor of polishing friction plate is compared with the rotor that do not polish, substantially increase the grinding efficiency of friction plate, the rotor of polishing friction plate It is more bonded with piezoelectric actuator stator contact face, effectively improves the output torque of piezoelectric actuator.
Description
Technical field
The present invention relates to piezoelectric actuator processing technique fields, and in particular to a kind of piezoelectric actuator friction plate automatically grinding
Device and application method.
Background technique
Piezoelectric actuator is that its movement and torque are obtained using the inverse piezoelectric effect and ultrasonic vibration of piezoelectric ceramics, is led to
It crosses to have using piezoelectric ceramics and applies the characteristic that voltage deforms and (extends, shrinks), be widely used in cell phone camera module
It is automatic focus, the position control apparatus such as the image stabilization system of digital camera.Not only size is small for piezoelectric actuator, slim, and
Have the characteristics that high displacement, is made that contribution for miniaturization, the slimming of module.
Piezoelectric actuator converts strain for voltage signal, to form driving force by piezoelectricity original part.Use piezoelectricity
Material, piezoelectric material are mainly made of stator piezoelectric ceramics and friction rotor material, existing friction rotor material (friction plate)
Polishing mode mainly uses manual grinding and mechanical grinding, and the mode of manual grinding very wasting manpower and material resources polish simultaneously
Quality not can guarantee, so that the quality of the friction rotor material of polishing is irregular, and existing mechanical grinding structure, usually all
It is more complicated, it is cumbersome.
Summary of the invention
In view of the deficiencies of the prior art, the invention discloses a kind of piezoelectric actuator friction plate automatically grinding device and uses
Method solves disadvantage existing currently on the market, is badly in need of improving the technology of grinding device, can preferably carry out piezoelectric actuated
The polishing operation of rotor friction material (i.e. friction plate) in device promotes the development of grinding device industry.
The present invention is achieved by the following technical solutions:
A kind of piezoelectric actuator friction plate automatically grinding device, including the polishing of feed arrangement, pressure measuring unit, friction plate
Device and controller, the feed arrangement driving pressure measurement device move back and forth, and the pressure measuring unit is equipped with
Sand paper, the friction plate grinding device setting, which is provided with friction plate and is driven on sand paper side, friction plate grinding device, to rub
Pad rotation, the feed arrangement, pressure measuring unit and friction plate grinding device are all electrically connected with the controller；
The feed arrangement includes piezoelectric actuator and Linear slide platform, and the piezoelectric actuator drives Linear slide platform
It is mobile；The pressure measuring unit includes pressure sensor fixed frame, pressure sensor and sand paper fixed frame, the pressure
Fixing rack for sensor is arranged on sliding block, and the pressure sensor is arranged on pressure sensor fixed frame, the sand paper
Fixed mount setting is mounted on sand paper fixed frame in the piezometry position of pressure sensor, the sand paper, the sand paper
It is contacted with the piezometry position of pressure sensor, the friction plate grinding device includes stepper motor and shaft, described
Shaft and rotor engagement, the stepper motor are connect with shaft, and the rotor end-face for posting friction plate is described towards sand paper
Rotor among be equipped with square hole, the shaft front end is equipped with square boss, and square hole and boss cooperate.
Further, the piezoelectric actuator is arranged on piezoelectric actuator bracket, and the Linear slide platform includes rolling
Ballscrew support, ball-screw and sliding block, the ball-screw are arranged on ball-screw support, and the sliding block setting exists
On the nut of ball-screw, the screw rod rotation of the piezoelectric actuator driving ball-screw, the sliding block and ball-screw
Guide rod is provided between support, the screw rod of the ball-screw is connected by the motor shaft of shaft coupling one and piezoelectric actuator
It connects.
Further, the stepper motor is arranged in stepping motor bracket, and the stepping motor bracket is equipped with
Rotary shaft rack, the rotary shaft rack include fore-stock and after-poppet, and the front end of the stepper motor is mounted on after-poppet,
The fore-stock is internally provided with bearing, the shaft and bearing fit, and the motor shaft of the stepper motor passes through connection
Axis device two is connect with shaft.
Further, the sand paper fixed frame includes fixed plate and batten, and the fixed plate is mounted on pressure sensing
In the measurement site of device, the sand paper is mounted in fixed plate by batten, and the both ends of fixed plate are arranged in the batten.
Further, the piezoelectric actuator bracket is L-type plate.
Further, the controller is electrically connected with piezoelectric actuator drivers and stepper motor driver respectively, pressure
The positive and negative rotation of electric actuator driver control piezoelectric actuator, the positive and negative rotation of the stepper motor driver control stepper motor
And revolving speed.
Further, the pressure sensor is electrically connected with pressure sensor digital display meter, the pressure sensor number
Aobvious table is electrically connected with the controller.
It the use of the application method that above-mentioned supersonic motor friction plate automatically grinding device polishes to friction plate include following step
It is rapid:
A, the measured value that pressure sensor is set by controller sets the revolving speed and just of piezoelectric actuator by controller
Reverse directions set revolving speed, polishing time and the polishing both forward and reverse directions of stepper motor by controller；
B, friction plate is fitted on rotor, rotor is fixed in shaft, sand paper is mounted on consolidating for sand paper fixed frame
On fixed board, fixed by batten；
C, start controller, pressure sensor digital display meter shows pressure, and controller passes through control piezoelectric actuator drivers
Control piezoelectric actuator positive and negative rotation, piezoelectric actuator drive Linear slide platform ball-screw movement, ball-screw band movable slider from
And driving the sand paper fixed frame on pressure sensor mobile, sand paper, which is moved right, to be contacted with friction plate until reaching pressure sensor
Measured value after shut down, piezoelectric actuator stops operating, Linear slide platform complete it is self-locking；
D, controller controls stepper motor rotation by control stepper motor driver, and stepper motor drive shaft is to drive
Movable friction plate completes revolving speed set in above-mentioned step A, polishing time and polishing both forward and reverse directions.The advantageous effect of the invention
It is:
1, then the present invention is beaten by fixing and rotating the rotor for posting friction plate by the mobile setting pressure of sand paper
Friction plate is ground, the rotor for friction plate of polishing is compared with the rotor that do not polish, the rotor and piezoelectric actuator of friction plate after polishing
Stator contact face is more bonded, and effectively improves the output torque of piezoelectric actuator.
2, the friction plate polished on rotor under the conditions of value of pressure, avoids by rotor deformation bring motor performance shadow
It rings, the effective overall performance for improving piezoelectric actuator.
3, the movement that sand paper is controlled using piezoelectric actuator control Linear slide platform makes sand paper reach predetermined with friction plate
Pressure value, thus definite value polish friction plate.
4, of the invention compact to design, structure is simple, good operability, substantially increases the grinding efficiency of friction plate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Attached drawing 1 is axonometric drawing of the present invention；
Attached drawing 2 is main view of the present invention；
Attached drawing 3 is right view of the present invention；
Attached drawing 4 is top view of the present invention；
Attached drawing 5 is present procedure control block diagram；
In figure: 1, piezoelectric actuator, 2, piezoelectric actuator bracket, 3, shaft coupling one, 4, Linear slide platform, 5, pressure sensor
Fixed frame, 6, sand paper, 7, sand paper fixed frame, 8, rotary shaft rack, 9, stepping motor bracket, 10, stepper motor, 11, shaft coupling two,
12, bearing, 13, rotor, 131, friction plate, 14, pressure sensor, 15, pressure sensor digital display meter, 16, controller, 41, rolling
Ballscrew support, 42, guide rod, 43, ball-screw, 44, sliding block, 81, fore-stock, 82, after-poppet, 71, fixed plate, 72, item
Plate.
Specific embodiment
A kind of the invention patent is proposed with reference to the accompanying drawing piezoelectric actuator friction plate automatically grinding device and make
Explanation is further explained with method.
Referring to Fig. 1-5: a kind of piezoelectric actuator friction plate automatically grinding device and application method, including feed arrangement, pressure
Power measurement device, friction plate grinding device and controller 16, the feed arrangement driving pressure measurement device move back and forth, institute
The pressure measuring unit stated is equipped with sand paper 6, and the friction plate grinding device setting is in 6 side of sand paper, friction plate polishing dress
It sets and is provided with friction plate 131 and friction plate 131 is driven to rotate, the feed arrangement, pressure measuring unit and friction plate are beaten
Mill apparatus is all electrically connected with controller 16；
The feed arrangement includes piezoelectric actuator 1 and Linear slide platform 4, and the piezoelectric actuator 1 drives linear cunning
The movement of platform 4；The pressure measuring unit includes pressure sensor fixed frame 5, pressure sensor 14 and sand paper fixed frame 7,
The pressure sensor fixed frame 5 is arranged on Linear slide platform 4, and the setting of pressure sensor 14 is solid in pressure sensor
Determine on frame 5, the piezometry position of pressure sensor 14 is arranged in the sand paper fixed frame 7, and the sand paper 6 is mounted on sand
On paper fixed frame 7, the sand paper 6 is contacted with the piezometry position of pressure sensor 14, the friction plate grinding device
Including stepper motor 10 and shaft, the shaft and rotor 13 cooperate, and the stepper motor 10 is connect with shaft, the patch
There is 13 end face of rotor of friction plate 131 towards sand paper, the friction plate 131 is fitted in any surface of rotor 13, described
Square hole is equipped among rotor 13, the shaft front end is equipped with square boss, and square hole and boss cooperate.
Further, the piezoelectric actuator 1 is arranged on piezoelectric actuator bracket 2, and the Linear slide platform 4 includes
Ball-screw support 41, ball-screw 43 and sliding block 44, the ball-screw 43 is arranged on ball-screw support 41, described
Sliding block 44 be arranged on the nut of ball-screw 43, the piezoelectric actuator 1 drives the screw rod rotation of ball-screw 43, institute
Guide rod 42 is provided between the sliding block 44 stated and ball-screw support 41, the screw rod of the ball-screw 43 passes through shaft coupling
The motor axis connection of device 1 and piezoelectric actuator 1.
Further, the stepper motor 10 is arranged in stepping motor bracket 9, in the stepping motor bracket 9
Equipped with rotary shaft rack 8, the rotary shaft rack 8 includes fore-stock 81 and after-poppet 82, and the front end of the stepper motor 10 is pacified
On after-poppet 82, the fore-stock 81 is internally provided with bearing 12, and the shaft and bearing 12 cooperate, the step
Motor shaft into motor 10 is connect by shaft coupling 2 11 with shaft.
Further, the sand paper fixed frame 7 includes fixed plate 71 and batten 72, and the fixed plate 71 is mounted on pressure
In the measurement site of force snesor 14, the sand paper 6 is mounted in fixed plate 71 by batten 72, and the batten 72 is arranged
At the both ends of fixed plate 71.
Further, the piezoelectric actuator bracket 2 is L-type plate.
Further, the controller 16 is electrically connected with piezoelectric actuator drivers and stepper motor driver respectively,
Piezoelectric actuator drivers control the positive and negative rotation of piezoelectric actuator 1, the stepper motor driver control stepper motor 10
Positive and negative rotation and revolving speed.
Further, the pressure sensor 14 is electrically connected with pressure sensor digital display meter 15, the pressure sensing
Device digital display meter 15 is electrically connected with controller 16.
The control flow of the controller 16 of the design are as follows: pressure sensor 14 is experienced pressure and sent to pressure sensor
Pressure value is fed back to controller 16 by 15 pressure signal of digital display meter, pressure sensor digital display meter 15, when pressure value is not up to set
When definite value, controller 16, which controls piezoelectric actuator drivers, rotates piezoelectric actuator 1, and the rotation of piezoelectric actuator 1 makes sliding block 44
The sand paper 6 that mountain is crossed slowly is contacted with friction plate 131, and pressure sensor 14 experiences pressure after reaching setting value at this time, stops turning
Dynamic, controller 16 drives stepper motor driver to drive stepper motor 10 to rotate at this time, by taking 40 band friction plate of polishing as an example,
Pressure 0.15Nm~0.2Nm.Following procedure is arranged to stepper motor 10: low speed rotates forward, and revolving speed is 60 revs/min, rotates 20 seconds；
Low speed and reverse, revolving speed are 60 revs/min, are rotated 20 seconds；High speed rotates forward, and revolving speed is 300 revs/min, rotates 20 seconds；High speed is anti-
Turn, revolving speed is 300 revs/min, is rotated 20 seconds.Sand paper 6 selects 600 mesh to 1000 mesh.
Piezoelectric actuator 1 and piezoelectric actuator bracket 2 are fastened by screw；The front end of shaft coupling 1 and piezoelectric actuator 1
Output shaft be connected, the rear end of shaft coupling 1 is connected with the screw rod of Linear slide platform 4；Pressure sensor fixed frame 5 and sand paper are fixed
Frame 7 is fixed by pressure sensor 14 by screw, and pressure sensor 14 is connected by electric wire with pressure sensor digital display meter 15；Sand
Sand paper 6 is placed between paper fixed frame 7 and batten 72, and is fastened by screw；Rotary shaft rack 8 is fastened by bolts with pedestal, is turned
Contain fore-stock 81 and after-poppet 82 in bracing strut 8；The bottom surface of stepper motor 10 is bolted with pedestal, stepper motor 10
Front end be bolted with after-poppet 82, the output shaft of stepper motor 10 is connected with the rear end of shaft coupling 2 11；Fore-stock
Contain bearing 12 in 81, shaft passes through bearing 12 and is connected with the front end of shaft coupling two；Rotor 13 with friction plate 131, which is placed in, to be turned
It is positioned in the fang platform of sub 13 front ends.
When work, piezoelectric actuator 1, which rotates, keeps the sliding block 44 of Linear slide platform 4 mobile, realizes sand paper 6 and with friction plate 131
Rotor contact, pressure sensor 14 be pressurized after by pressure sensor digital display meter 15 show pressure value, reached to pressure value
Signal feeds back to the driver of piezoelectric actuator 1 after to sets requirement, piezoelectric actuator 1 stop working and realize it is self-locking, this
When sand paper 6 and rotor 13 with friction plate 131 between there are the pressure of definite value.Then starting stepper motor 10 makes band friction plate
Automatically grinding movement is realized in 131 rotation of rotor 13.Set stepper motor 10 controller 16, it can be achieved that polishing revolving speed, beat
Time consuming and polishing both forward and reverse directions.
It the use of the application method that above-mentioned supersonic motor friction plate automatically grinding device polishes to friction plate include following step
It is rapid:
A, the measured value that pressure sensor 14 is set by controller 16 sets piezoelectric actuator 1 by controller 16
Revolving speed and positive and negative rotation direction set revolving speed, polishing time and the polishing both forward and reverse directions of stepper motor 10 by controller 16；
B, friction plate 131 is fixed on rotor 13, rotor 13 is mounted in shaft, sand paper 6 is mounted on sand
It is fixed by batten 72 in the fixed plate 71 of paper fixed frame 7；
C, start controller 16, pressure sensor digital display meter 15 shows pressure, and controller 16 passes through control piezoelectric actuator
1 positive and negative rotation of driver control piezoelectric actuator, piezoelectric actuator drive the ball-screw 43 of Linear slide platform 4 to move, ball-screw
43 with movable slider 44 to drive sand paper fixed frame 7 on pressure sensor 14 mobile, sand paper 6 is moved right to be contacted with friction plate
It shuts down after reaching the measured value of pressure sensor 14, piezoelectric actuator 1 stops operating, and Linear slide platform 4 is completed self-locking；
D, controller 16 by control stepper motor driver control stepper motor 10 rotate, stepper motor drive shaft from
And friction plate is driven to complete revolving speed set in above-mentioned step A, polishing time and polishing both forward and reverse directions.
For the ordinary skill in the art, introduction according to the present invention, do not depart from the principle of the present invention with
In the case where spirit, changes, modifications that embodiment is carried out, replacement and variant still fall within protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of piezoelectric actuator friction plate automatically grinding device, it is characterised in that: including feed arrangement, pressure measuring unit,
Friction plate grinding device and controller (16), the feed arrangement driving pressure measurement device move back and forth, the pressure
Measurement device is equipped with sand paper (6), and the friction plate grinding device is arranged on sand paper (6) side, friction plate grinding device
Be provided with friction plate (131) and friction plate (131) driven to rotate, the feed arrangement and friction plate grinding device all with control
Device (16) electrical connection；
The feed arrangement includes piezoelectric actuator (1) and Linear slide platform (4), and the piezoelectric actuator (1) driving is linear
The movement of slide unit (4)；The pressure measuring unit includes pressure sensor fixed frame (5), pressure sensor (14) and sand paper
Fixed frame (7), the pressure sensor fixed frame (5) are arranged on Linear slide platform (4), and the pressure sensor (14) is set
It sets on pressure sensor fixed frame (5), pressure measurement unit of sand paper fixed frame (7) setting in pressure sensor (14)
Position, the sand paper (6) are mounted on sand paper fixed frame (7), the piezometry of the sand paper (6) and pressure sensor (14)
Location contacts, the friction plate grinding device include stepper motor (10) and shaft, and the shaft and rotor (13) cooperate,
The stepper motor (10) is connect with shaft, and rotor (13) end face for posting friction plate (131) is described towards sand paper
Square hole is equipped among rotor (13), the shaft front end is equipped with square boss, and square hole and boss cooperate.
2. a kind of piezoelectric actuator friction plate automatically grinding device according to claim 1, it is characterised in that: the pressure
Electric actuator (1) is arranged on piezoelectric actuator bracket (2), and the Linear slide platform (4) includes ball-screw support (41), rolling
Ballscrew (43) and sliding block (44), the ball-screw (43) are arranged on ball-screw support (41), the sliding block
(44) it is arranged on the nut of ball-screw (43), the piezoelectric actuator (1) drives the screw rod rotation of ball-screw (43),
It is provided with guide rod (42) between the sliding block (44) and ball-screw support (41), the spiral shell of the ball-screw (43)
Bar passes through the motor axis connection of shaft coupling one (3) and piezoelectric actuator (1).
3. a kind of piezoelectric actuator friction plate automatically grinding device according to claim 2, it is characterised in that: the step
It is arranged on stepping motor bracket (9) into motor (10), the stepping motor bracket (9) is equipped with rotary shaft rack (8), described
Rotary shaft rack (8) include fore-stock (81) and after-poppet (82), the front end of the stepper motor (10) is mounted on after-poppet
(82) on, the fore-stock (81) is internally provided with bearing (12), and the shaft and bearing (12) cooperate, the stepping
The motor shaft of motor (10) is connect by shaft coupling two (11) with shaft.
4. a kind of piezoelectric actuator friction plate automatically grinding device according to claim 3, it is characterised in that: the sand
Paper fixed frame (7) includes fixed plate (71) and batten (72), and the fixed plate (71) is mounted on the survey of pressure sensor (14)
Determine on position, the sand paper (6) is mounted on fixed plate (71) by batten (72), and the batten (72) is arranged in fixation
The both ends of plate (71).
5. a kind of piezoelectric actuator friction plate automatically grinding device according to any one of claims 1 to 4, it is characterised in that:
The piezoelectric actuator bracket (2) is L-type plate.
6. a kind of piezoelectric actuator friction plate automatically grinding device according to claim 5, it is characterised in that: the control
Device (16) processed is electrically connected with piezoelectric actuator drivers and stepper motor driver respectively, and piezoelectric actuator drivers control piezoelectricity
The positive and negative rotation of actuator (1), the positive and negative rotation of stepper motor driver control stepper motor (10) and revolving speed.
7. a kind of piezoelectric actuator friction plate automatically grinding device according to claim 6, it is characterised in that: the pressure
Force snesor (14) is electrically connected with pressure sensor digital display meter (15), the pressure sensor digital display meter (15) and controller
(16) it is electrically connected.
8. the application method of any a kind of piezoelectric actuator friction plate automatically grinding device according to claim 1~7, packet
Include following steps:
A, by the measured value of controller (16) setting pressure sensor (14), piezoelectric actuator is set by controller (16)
(1) positive and negative rotation direction passes through the revolving speed of controller (16) setting stepper motor (10), polishing time and polishing both forward and reverse directions；
B, friction plate (131) is fixed on rotor (13), rotor (13) is mounted in shaft, sand paper (6) are installed
It is fixed by batten (72) in the fixed plate (71) of sand paper (6) fixed frame；
C, start controller (16), pressure sensor digital display meter (15) shows pressure, and controller (16) is piezoelectric actuated by controlling
Device driver control piezoelectric actuator (1) positive and negative rotation, piezoelectric actuator (1) drive ball-screw (43) fortune of Linear slide platform (4)
Dynamic, ball-screw (43) drives sand paper (6) fixed frame on pressure sensor (14) mobile with movable slider (44), sand paper
(6) it moves right to contact with friction plate (131) and shut down after the measured value for reaching pressure sensor (14), it is piezoelectric actuated
Device (1) stops operating, and Linear slide platform (4) is completed self-locking；
D, controller (16) by control stepper motor driver control stepper motor (10) rotation, stepper motor drive shaft from
And friction plate (131) is driven to complete revolving speed set in above-mentioned step A, polishing time and polishing both forward and reverse directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910243423.9A CN109834557B (en) | 2019-03-28 | 2019-03-28 | Automatic polishing device for friction plate of piezoelectric actuator and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910243423.9A CN109834557B (en) | 2019-03-28 | 2019-03-28 | Automatic polishing device for friction plate of piezoelectric actuator and using method |
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| Publication Number | Publication Date |
|---|---|
| CN109834557A true CN109834557A (en) | 2019-06-04 |
| CN109834557B CN109834557B (en) | 2020-02-21 |
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ID=66886512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910243423.9A Active CN109834557B (en) | 2019-03-28 | 2019-03-28 | Automatic polishing device for friction plate of piezoelectric actuator and using method |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147022A (en) * | 2020-09-09 | 2020-12-29 | 安徽誉林汽车部件有限公司 | Automobile part wear resistance detection device and variable control method thereof |
| CN116021358A (en) * | 2023-03-28 | 2023-04-28 | 之江实验室 | Fine processing device and method for lithium niobate piezoelectric single crystal |
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| JPS5947156A (en) * | 1982-09-10 | 1984-03-16 | Shintou Bureetaa Kk | Method and device for polishing hydraulically vibrating surface |
| CN202062306U (en) * | 2011-04-28 | 2011-12-07 | 北京市电加工研究所 | Automatic constant pressure feeding device with magnetic repulsive force |
| CN206832196U (en) * | 2017-04-24 | 2018-01-02 | 华南理工大学 | A kind of ball-screw gap and the measurement apparatus of rigidity |
| CN207078330U (en) * | 2017-08-17 | 2018-03-09 | 深圳市三阶微控实业有限公司 | A kind of unmanned plane camera of piezo-activator driving |
| CN207840956U (en) * | 2018-02-24 | 2018-09-11 | 江西久安汽车部件有限公司 | A kind of car clutch face sheet processing grinding device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5947156A (en) * | 1982-09-10 | 1984-03-16 | Shintou Bureetaa Kk | Method and device for polishing hydraulically vibrating surface |
| CN202062306U (en) * | 2011-04-28 | 2011-12-07 | 北京市电加工研究所 | Automatic constant pressure feeding device with magnetic repulsive force |
| CN206832196U (en) * | 2017-04-24 | 2018-01-02 | 华南理工大学 | A kind of ball-screw gap and the measurement apparatus of rigidity |
| CN207078330U (en) * | 2017-08-17 | 2018-03-09 | 深圳市三阶微控实业有限公司 | A kind of unmanned plane camera of piezo-activator driving |
| CN207840956U (en) * | 2018-02-24 | 2018-09-11 | 江西久安汽车部件有限公司 | A kind of car clutch face sheet processing grinding device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147022A (en) * | 2020-09-09 | 2020-12-29 | 安徽誉林汽车部件有限公司 | Automobile part wear resistance detection device and variable control method thereof |
| CN116021358A (en) * | 2023-03-28 | 2023-04-28 | 之江实验室 | Fine processing device and method for lithium niobate piezoelectric single crystal |
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|---|---|
| CN109834557B (en) | 2020-02-21 |
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