CN110332277A - Curved surface thin-wall part vibration control apparatus based on permanent magnetic drive - Google Patents
Curved surface thin-wall part vibration control apparatus based on permanent magnetic drive Download PDFInfo
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- CN110332277A CN110332277A CN201910590127.6A CN201910590127A CN110332277A CN 110332277 A CN110332277 A CN 110332277A CN 201910590127 A CN201910590127 A CN 201910590127A CN 110332277 A CN110332277 A CN 110332277A
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- permanent magnet
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- follower
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
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- General Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Transmission Devices (AREA)
Abstract
The present invention provides a kind of curved surface thin-wall part vibration control apparatus based on permanent magnetic drive, including electromagnet and permanent magnet driving mechanism, follower, motion changing mechanism and adaptive top bracing mechanism；Electromagnet and permanent magnet driving mechanism is mounted on the base, and electromagnet and permanent magnet driving mechanism connects follower, and provides power source to follower；Follower connects motion changing mechanism, and the reciprocating motion of follower is converted to vertical motion by motion changing mechanism；Motion changing mechanism is also mounted on pedestal, and motion changing mechanism connects adaptive top bracing mechanism, and adaptive top bracing mechanism realizes up and down motion under the drive of motion changing mechanism.Curved surface thin-wall part vibration control apparatus of the invention, a driving source can realize the movement output of multiple positions, save driving source, but also overall system architecture is more compact.In addition, generating power source in the way of electromagnet and permanent magnet, with linear motor and compared with the voice coil motor of size, the output of electromagnet and permanent magnet driving mechanism is more rigid.
Description
Technical field
The present invention relates to, and in particular, to a kind of curved surface thin-wall part vibration control apparatus based on permanent magnetic drive.
Background technique
In the process of large thin-wall curved-surface piece (such as covering of aircraft, rocket), since the size of workpiece is big, thick
The rigidity for spending direction is small, therefore the vibration that cutter generates is easy to excite the vibration of thin-wall workpiece.In order to inhibit the vibration, the present invention
It is proposed a kind of active damper based on permanent magnetic drive.
The patent of invention of Publication No. CN109590776A discloses a kind of flexible fixture based on magnetorheological fluid, including peace
Dress seat, the extrusome that is fixedly connected with mounting base and the clamping body far from mounting base side that is mounted on extension ladder；Clamping body packet
Include pedestal, two removable collets, magnetorheological liquid capsule and adjustable pinching screw；Adjustable pinching screw is leaned on two removable collets
The side connection of nearly pedestal.The torque transmitting accuracy of the fixture is inadequate.
Summary of the invention
For the defects in the prior art, the curved surface thin-wall part vibration based on permanent magnetic drive that the object of the present invention is to provide a kind of
Dynamic control device.
A kind of curved surface thin-wall part vibration control apparatus based on permanent magnetic drive provided according to the present invention, including electromagnet and permanent magnet
Driving mechanism, follower, motion changing mechanism and adaptive top bracing mechanism；
The electromagnet and permanent magnet driving mechanism is mounted on the base, and the electromagnet and permanent magnet driving mechanism connects follower, and
Power source is provided to follower；
The follower connects motion changing mechanism, and the motion changing mechanism converts the reciprocating motion of follower
For vertical motion；
The motion changing mechanism is also mounted on pedestal, and the motion changing mechanism connects adaptive top bracing mechanism, institute
It states adaptive top bracing mechanism and realizes up and down motion under the drive of motion changing mechanism.
Further, the electromagnet and permanent magnet driving mechanism makes follower reciprocatingly move, the electromagnet and permanent magnet driving machine
Structure includes circular iron core, electromagnetic coil, permanent magnet and permanent magnet shaft with a pair of of internal tooth；
A pair of of internal tooth of the annular shape iron core is equipped with electromagnetic coil, and permanent magnetism is arranged in the accommodation space between two internal tooths
Body, one end and the permanent magnet of permanent magnet shaft are fixed, and the other end is connect with follower.
Further, the electromagnet and permanent magnet driving mechanism makes follower reciprocatingly move, the electromagnet and permanent magnet driving machine
Structure includes soft magnet core, electromagnetic coil, permanent magnet and permanent magnet shaft；
The soft magnet core is that both ends are long, intermediate two short E shaped iron cores are positioned opposite, forms an accommodation space, and
Permanent magnet is placed in accommodation space, electromagnetic coil is wound on the both ends of E shaped iron core, permanent magnet shaft is in permanent magnet
It is placed in accommodation space vertically after portion's through-hole.
Further, the follower reciprocate through motion changing mechanism be converted to vertical direction displacement it is defeated
Out, the follower is cam direct acting follower, including cam shaft, cam, the first push rod and the second push rod；
The cam shaft connects cam, first push rod and the second push rod along the distribution of cam radial symmetric and and cam
Contact, the cam shaft and the permanent magnet shaft of electromagnet and permanent magnet driving mechanism are connected as one, and the cam is in cam shaft
Drive under rotary oscillation together, when cam rotary oscillation pushes the first push rod and the second push rod to move reciprocatingly.
Further, the shape of the cam is ellipse, and the geometric center and cam shaft of cam are overlapped, the cam
It is contacted simultaneously with the first push rod, the second push rod, to guarantee that the first push rod and the second push rod do two-way linear motion.
Further, the cam direct acting follower further includes the first roller and the second roller；
First roller is arranged between the first push rod and cam and connect with the first push rod；The second roller setting
It is connect between the second push rod and cam and with the second push rod.
Further, the motion changing mechanism is driven using flexible hinge, and the motion changing mechanism includes that movement is defeated
Enter component, motion transform intermediate member and movement output component, the motion transform intermediate member is mounted on the base, described
Movement output component is also mounted on pedestal；
The movement input part includes two radial motion components, and described two radial motion components are separately connected cam
The first push rod and the second push rod of direct acting follower, so that the movement of the two-way linear of the first push rod and the second push rod is converted to
The radial alignment movement of itself；
The movement input part and movement output component are separately connected the motion transform intermediate member, and the movement becomes
It changes intermediate member the vertical direction that the radial alignment for moving input part movement is converted to movement output component moves along a straight line.
Further, the adaptive top bracing mechanism is shored head using floating spherical linkage and is contacted with workpiece, according to processing
Contact position is adaptively adjusted in the variation of curve surface of workpiece curvature, guarantees and support while workpiece real-time contact to workpiece
Power is consistent.
Further, the motion changing mechanism include elastic tension frame, obliquity prominence platform, ball and " ┐ " deformation to
Output precision, " ┐ " deformation are fixed to one end of output precision with pedestal, and the other end is equipped with ball, the elastic tension frame
Frame is equipped with obliquity prominence platform, and the obliquity prominence platform is in contact with ball；
The follower includes oval cam；
The periphery setting elastic tension frame of the cam, extrapolation of the elastic tension frame by oval cam
Power generates deformation in the radial direction, moves up and down ball on obliquity prominence platform, to realize " ┐ " deformation to output precision
Displacement output on vertical direction.
Further, the motion changing mechanism includes ball and " ┐ " deformation to output precision, " ┐ " deformation
It is fixed to one end of output precision with pedestal, the other end is equipped with ball；
The follower includes rotatable round table surface and the boss that is arranged in round table surface；
It is the ball of motion changing mechanism above the boss of the round table surface, the ball is contacted with boss, the rotary table
Face generates rotary motion under the drive of permanent magnet shaft, so that the boss in round table surface and " ┐ " deformation are on output precision
Ball contact, jack up " ┐ " deformation makes it generate the displacement output on vertical direction to output precision.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, curved surface thin-wall part vibration control apparatus of the invention, the movement that multiple positions may be implemented in a driving source are defeated
Out, driving source is saved, but also overall system architecture is more compact.
2, curved surface thin-wall part vibration control apparatus of the invention, generates power source, permanent magnet exists in the way of electromagnet and permanent magnet
Electromagnetic torque is generated around electromagnetic coil under the action of alternating magnetic field；Compared with linear motor, electromagnet and permanent magnet driving machine of the present invention
Structure does not have the air gap between stator and mover；Compared with the voice coil motor of same size, electromagnet and permanent magnet driving mechanism of the present invention is defeated
It is more rigid out.
3, curved surface thin-wall part vibration control apparatus of the invention, it is positioned opposite using two E shaped iron cores, and permanent magnet is put
It is placed in the center of iron core, increases the magnetic flux of electromagnet generation, while reducing the magnetic loss in magnetic circuit and magnetic leakage.
4, curved surface thin-wall part vibration control apparatus of the invention, permanent magnet reciprocally swinging, energy within the scope of certain angle
Guarantee the power transmitting and the preferable linearity of greater efficiency.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of the electromagnet and permanent magnet driving mechanism of the embodiment of the present invention 1；
Fig. 3 is the top view of the electromagnet and permanent magnet driving mechanism of the embodiment of the present invention 1；
Fig. 4 is the structural schematic diagram of the cam direct acting follower of the embodiment of the present invention 1；
Fig. 5 is the structural schematic diagram of the motion changing mechanism of the embodiment of the present invention 1；
Fig. 6 is the structural schematic diagram of motion transform intermediate member and movement input part in the embodiment of the present invention 1；
Fig. 7 is the structural schematic diagram of the embodiment of the present invention 2；
Fig. 8 is the structural schematic diagram of the electromagnet and permanent magnet driving mechanism of the embodiment of the present invention 2 and 3；
Fig. 9 is the top view of the electromagnet and permanent magnet driving mechanism of the embodiment of the present invention 2 and 3；
Figure 10 is the structural schematic diagram of the motion changing mechanism of the embodiment of the present invention 2；
Figure 11 is the structural schematic diagram of the embodiment of the present invention 3；
Figure 12 is the structural schematic diagram of the motion changing mechanism of the embodiment of the present invention 3；
Figure 13 is the structural schematic diagram of the follower of the embodiment of the present invention 3.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
The present invention provides a kind of curved surface thin-wall part vibration control apparatus based on permanent magnetic drive, including electromagnet and permanent magnet driving machine
Structure, follower, motion changing mechanism and adaptive top bracing mechanism；
Electromagnet and permanent magnet driving mechanism is mounted on the base by the first fixed accessory part, the connection of electromagnet and permanent magnet driving mechanism
Follower, and power source is provided to follower；
Follower connects motion changing mechanism, and the reciprocating motion of follower is converted to vertical fortune by motion changing mechanism
It is dynamic；
Motion changing mechanism is mounted on the base by the second fixed accessory part, the adaptive top of motion changing mechanism connection
Support mechanism, adaptive top bracing mechanism realize up and down motion under the drive of motion changing mechanism.
Embodiment 1
As shown in Figures 1 to 6, a kind of curved surface thin-wall part vibration control apparatus based on permanent magnetic drive, including electromagnet and permanent magnet
Driving mechanism 1, follower 2, motion changing mechanism 3 and adaptive top bracing mechanism 4；Electromagnet and permanent magnet driving mechanism 1 passes through the
One fixed accessory part (specially fixed block 6) is mounted on pedestal 5, and motion changing mechanism 3 passes through the second fixed accessory part
(including the first fixed column 7 and second fixed column 8) is mounted on pedestal 5, and electromagnet and permanent magnet driving mechanism 1 connects follower 2, and
Power source is provided to follower 2；Follower 2 connects motion changing mechanism 3, and motion changing mechanism 3 is past by follower 2
Multiple movement is converted to vertical motion；Motion changing mechanism 3 connects adaptive top bracing mechanism 4, and adaptive top bracing mechanism 4 becomes in movement
It changes planes and realizes under the drive of structure 3 and move up and down.
Electromagnet and permanent magnet driving mechanism 1 includes soft magnet core 101, electromagnetic coil 102, permanent magnet 103 and permanent magnet shaft
104；In order to increase the magnetic flux of electromagnet generation, reduce magnetic loss and magnetic leakage in magnetic circuit, soft magnet core 101 is preferably two
End is long, intermediate two short E shaped iron cores are positioned opposite, forms an accommodation space, and permanent magnet 103 is placed in accommodation space
In, two circle electromagnetic coils are wound on the both ends of E shaped iron core, to improve magnetic flux and magnetic energy utilization rate, and can be avoided with
Interference is generated when permanent magnet 103 rotates, it is empty that permanent magnet shaft 104 is placed on receiving vertically after 103 middle through-hole of permanent magnet
In, soft magnet core 101 generates the intensity of electromagnetic field, can be adjusted by the number of turns and electrical current intensity of electromagnetic coil 102
Section；Electric current by adjusting input electromagnetic coil 102 rotates in electromagnetic field to adjust permanent magnet 103 and permanent magnet shaft 104
The angle of swing.
The driving moment of electromagnetic permanent magnetic-type is that electromagnetic field and permanent magnetism field interactions generate, soft magnet core as stator,
Permanent magnet 103 is used as mover, and electromagnet and permanent magnet driving mechanism is realized in the variation according to suction and repulsion between stator and mover
Reciprocally swinging.Under electromagnetic field, permanent magnet 103 can generate torque, and under this torque, the drive of permanent magnet 103 is connected thereto
Permanent magnet shaft 104 together, which synchronizes, turns over equal angular, under the action of certain sine and cosine electric current, 103 meeting of permanent magnet
Reciprocally swinging is done in electromagnetic field.
Follower 2 is cam direct acting follower, including cam shaft 21, cam 22, the first push rod 23 and second
Push rod 24；Cam shaft 21 connects cam 22, the first push rod 23 and the second push rod 24 be distributed along 22 radial symmetric of cam and with it is convex
22 contact of wheel, cam shaft 21 and the permanent magnet shaft 104 of electromagnet and permanent magnet driving mechanism are connected as one, and cam 22 turns in cam
Rotary oscillation together under the drive of axis 21, when 22 rotary oscillation of cam, push the first push rod 23 and the second push rod 24 to do reciprocal fortune
It is dynamic.
The contour line of cam 22 is ellipse, and the geometric center and cam shaft 21 of cam 22 are overlapped, cam 22 and first
Push rod 23, the second push rod 24 contact simultaneously, to guarantee that the first push rod 23 and the second push rod 24 do two-way linear motion.
Cam direct acting follower further includes the first roller 25 and the second roller 26；First roller 25 is arranged in the first push rod
It is connect between 23 and cam 22 and with the first push rod 23；Second roller 26 is arranged between the second push rod 24 and cam 22 and with the
The connection of two push rods 24.First roller 25, the second roller 26 can reduce the friction and wear in the transmission of cam 22.By radial and
Axial restraint, the movement of cam 22 and cam shaft 21 keep synchronous.First push rod 23, the second push rod 24 by adjust bolt with
Motion changing mechanism 3 links into an integrated entity.In Fig. 4 (a), A, B, C respectively indicate three different locations of pushrod movement.Work as cam
When direct acting follower is by position A-B-A-C-A, the first push rod 23, the second push rod 24 shift transformation respectively such as Fig. 4 (b) and
Shown in Fig. 4 (c).
Motion changing mechanism 3 is driven using flexible hinge, and motion changing mechanism 3 becomes including movement input part 31, movement
Intermediate member 32 and movement output component 33 are changed, motion transform intermediate member 32 is mounted on pedestal 5 by the first fixed column 7
On, movement output component 33 is mounted on pedestal 5 by the second fixed column 8；
Move input part 31 include two radial motion components, two radial motion components be separately connected cam direct acting from
The first push rod 23 and the second push rod 24 of motivation structure, thus by the two-way linear of the first push rod 23 and the second push rod 24 movement (figure
5, X-direction in Fig. 6) be converted to itself radial alignment movement (Y-direction in Fig. 5, Fig. 6)；
Movement input part 31 and movement output component 33 are separately connected motion transform intermediate member 32, among motion transform
Component 32 can transport the vertical direction straight line that the radial alignment movement for moving input part 31 is converted to movement output component 33
Dynamic (Z-direction in Fig. 5, Fig. 6).
Motion changing mechanism 3 includes the movement commutation in horizontal plane and vertical plane, wherein pass through horizontal commutating structure, movement
Horizontal commutation part in mapping device 3 is on monolith circle aluminium alloy plate using made of Wire EDM, push rod
Two-way linear movement becomes the radial alignment movement of four radial motion components of platform circumferencial direction；By the knot that vertically commutates
Structure, four radial motion components of circumferencial direction horizontal radial linear motion become movement output component 33 (or with move it is defeated
Four linear motions of four 4 vertical direction of adaptive top bracing mechanism that component 33 is connected out.Motion changing mechanism 3 can adopt
Different modes is taken to realize the conversion of movement.The present embodiment uses the movement transformation structure of flexible hinge chain type, is conducive to improve system
Entirety of uniting transmission accuracy.The reason is that, the horizontal commutation part in motion changing mechanism 3 is sharp on monolith circle aluminium alloy plate
Made of Wire EDM, be conducive to the precision for improving movement commutation, 31 He of input part will be moved by pretension bolt
The first push rod 23, the second push rod 24 of cam direct acting follower link together, and can both carry out the transmitting of power in this way, simultaneously
Precompression can be applied to two push rods using motion changing mechanism 3 flexible, guarantee the real-time contact of cam 22 and two push rods.
Motion transform intermediate member 32 and movement output component 33 are consolidated by bonding.
Head is shored using floating spherical linkage in the position that adaptive top bracing mechanism 4 is contacted with workpiece, can be according to processing work
The variation of part curvature of curved surface, is adaptively adjusted contact position, guarantee with while workpiece real-time contact to the support force of workpiece
Unanimously.Four adaptive top bracing mechanisms 4 are fixed on four output ends of motion changing mechanism 3, and shoring in head has and can float
Spherical hinge, guarantee vibration control apparatus can and 9 real-time contact of thin-wall curved-surface workpiece.
In the embodiment of the present invention 1, electromagnet and permanent magnet driving mechanism 1 generates stable swing source；Cam direct acting follower
Linked together with electromagnet and permanent magnet driving mechanism 1 by cam shaft 21, the swinging back and forth of permanent magnet 103 become cam direct acting from
The reciprocating movement of motivation structure；Electromagnet and permanent magnet driving mechanism 1 and cam direct acting follower are horizontal positioned；Pass through motion changing mechanism
Reciprocating movement in horizontal plane is transformed to moving up and down for vertical direction by 3, this is moved up and down as the final defeated of whole device
It moves out, the modal vibration of curved surface thin-wall part 9 can be offset；Adaptive top bracing mechanism 4 can adaptively support curved surface thin-wall part 9；
Fixed accessory part limits aforementioned functional component, connected and is fixed.The present invention generates power in the way of electromagnet and permanent magnet
Source, permanent magnet 103 generate electromagnetic torque under the action of 102 surrounding alternating magnetic field of electromagnetic coil and compare with linear motor, the electricity
Magnetic actuator does not have the air gap between stator and mover；It is compared with the voice coil motor of same size, its output is more rigid.?
Under the action of electromagnetic torque and cam 22 that permanent magnet 103 is coaxial can also follow rotation, utilize the cam profile of special designing
Move back and forth cam direct acting follower near initial position.Cam 22 in the present invention is not traditional convex
Wheel, it only within the scope of certain angle reciprocally swinging, can guarantee greater efficiency power transmitting and the preferable linearity.
Embodiment 2
As shown in Figure 7 to 10, driving principle, in terms of, the present embodiment and embodiment 1 keep one
It causes, what is mainly changed is the design of motion changing mechanism 3, using the polygon tension structure 301 based on elastic material.
A kind of curved surface thin-wall part vibration control apparatus based on permanent magnetic drive, including electromagnet and permanent magnet driving mechanism 1, driven machine
Structure 2, motion changing mechanism 3 and adaptive top bracing mechanism 4；Electromagnet and permanent magnet driving mechanism 1 and motion changing mechanism 3 are mounted on bottom
On seat 5, electromagnet and permanent magnet driving mechanism 1 connects follower 2, and provides power source to follower 2；The contact fortune of follower 2
The reciprocating motion of follower 2 is converted to vertical motion by dynamic mapping device 3, motion changing mechanism 3；Motion changing mechanism 3 connects
It is connected to and adapts to top bracing mechanism 4, adaptive top bracing mechanism 4 realizes up and down motion under the drive of motion changing mechanism 3.
Follower 2 includes oval cam 201；Electromagnet and permanent magnet driving mechanism 1 includes the annular shape with a pair of of internal tooth
A pair of of internal tooth of iron core 101, electromagnetic coil 102, permanent magnet 103 and permanent magnet shaft 104, circular iron core 101 is equipped with
Permanent magnet 103, one end of permanent magnet shaft 104 and permanent magnet is arranged in electromagnetic coil 102, the accommodation space between two internal tooths
103 is fixed, and the other end is connect with the geometric center of oval cam 201, and cam 201 turns under the drive of permanent magnet shaft 104
It is dynamic；Under electromagnetic field shown in Fig. 10, permanent magnet 103 can generate anticlockwise torque so that its internal magnetic field direction with
Peripheral electromagnetism field direction is consistent, and under this torque, permanent magnet 103 drives the permanent magnet shaft 104 being connected thereto together
It synchronizes counterclockwise and turns over equal angular, under the action of certain sine and cosine electric current, permanent magnet 103 can do reciprocal in electromagnetic field
It swings.
Motion changing mechanism 3 includes elastic tension frame 301, obliquity prominence platform 302, ball 303 and " ┐ " deformation to defeated
Component 304 out, " ┐ " deformation is fixed to one end of output precision 304 and pedestal 5, and the other end is equipped with ball 303, elastic tension frame
Frame 301 is equipped with obliquity prominence platform 302, and obliquity prominence platform 302 is in contact with ball 303；
The periphery setting elastic tension frame 301 of oval cam 201, elastic tension frame 301 is by oval cam
201 extrapolability generates deformation in the radial direction at the edge of elastic tension frame, makes ball 303 on obliquity prominence platform 302
It moves up and down, to realize displacement output of " ┐ " deformation on 304 vertical direction of output precision.
In the present embodiment, motion changing mechanism 3 is using the polygonal resilient tension frame 301 based on elastic material.
In alternating magnetic field, electromagnetic coil 102 drives permanent magnet 103, while swinging with moving cam 201, so that polygonal resilient is tensioned
Frame 301 generates deformation.On the obliquity prominence platform 302 and deflecting output precision 304 arranged on polygonal resilient tension frame 301
Ball 303 forms sliding block pair, to make the actuation in the vertical direction of deflecting output precision 304, the vibration of Control curve thin-wall workpiece 9
It is dynamic.Compared to embodiment 1, in the present embodiment, motion changing mechanism reduces flexible hinge number in movement transition components, reduces
The structure complexity of system, improves the overall stiffness and response speed of device.
Embodiment 3
As shown in Fig. 9 to Figure 13, driving principle, in terms of, the present embodiment and embodiment 2 keep one
It causes, what is mainly changed is the design of motion changing mechanism 3, using the disc structure with boss.
A kind of curved surface thin-wall part vibration control apparatus based on permanent magnetic drive, including electromagnet and permanent magnet driving mechanism 1, driven machine
Structure 2, motion changing mechanism 3 and adaptive top bracing mechanism 4；Electromagnet and permanent magnet driving mechanism 1 and motion changing mechanism 3 are mounted on bottom
On seat 5, electromagnet and permanent magnet driving mechanism 1 connects follower 2, and provides power source to follower 2；The connection fortune of follower 2
The reciprocating motion of follower 2 is converted to vertical motion by dynamic mapping device 3, motion changing mechanism 3；Motion changing mechanism 3 connects
It is connected to and adapts to top bracing mechanism 4, adaptive top bracing mechanism 4 realizes up and down motion under the drive of motion changing mechanism 3.
Electromagnet and permanent magnet driving mechanism 1 includes soft magnet core 101, electromagnetic coil 102, permanent magnet 103 and permanent magnet shaft
104；101 inner surface of soft magnet core has two internal tooths being oppositely arranged, and is wound with electromagnetic coil 102 respectively on two internal tooths,
One end of permanent magnet shaft 104 and permanent magnet 103 are fixed, and the other end is connect with the geometric center of round table surface 211；By adjusting electricity
Electrical current direction in magnetic coil 102 makes the polarity of two internal tooths of 101 inner surface of soft magnet core opposite.Shown in Figure 10
Electromagnetic field under, permanent magnet 103 can generate anticlockwise torque, so that its internal magnetic field direction and peripheral electromagnetism field direction
Unanimously, under this torque, permanent magnet 103 drives counterclockwise synchronize of permanent magnet shaft 104 being connected thereto together to turn over
Equal angular, under the action of certain sine and cosine electric current, permanent magnet 103 can do reciprocally swinging in electromagnetic field.
Follower 2 includes rotatable round table surface 211 and the boss 212 being arranged in round table surface 211；
Motion changing mechanism 3 includes ball 303 and " ┐ " deformation to output precision 304, and " ┐ " deformation is to output precision
304 one end and pedestal 5 are fixed, and the other end is equipped with ball 303；
It is the ball 303 of motion changing mechanism above the boss 212 of round table surface 211, ball 303 is contacted with boss 212, circle
Table top 211 generates rotary motion under the drive of permanent magnet shaft 104, so that the boss 212 in round table surface 211 and " ┐ " deformation
Ball 303 on output precision 304 contacts, and jack up " ┐ " deformation makes it generate the position on vertical direction to output precision 304
Move output.
In the present embodiment, motion changing mechanism 3 is using the disc structure with boss device.The permanent magnet 103 of swing
Round table surface 211 is directly driven, when ball 303 phase of the boss 212 with " ┐ " deformation on output precision 304 in round table surface 211
When contact, " ┐ " deformation can be pushed to generate displacement in the vertical direction to output precision 304, to control thin-wall curved-surface workpiece
Vibration.Compared to embodiment 2, in the present embodiment, motion changing mechanism reduces structural elasticity deformation bring gesture in device
It can be lost, improve the utilization rate of energy and the consistency of mechanism kinematic.
In the description of the present application, it is to be understood that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, description the application is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of curved surface thin-wall part vibration control apparatus based on permanent magnetic drive, which is characterized in that including electromagnet and permanent magnet driving machine
Structure, follower, motion changing mechanism and adaptive top bracing mechanism；
The electromagnet and permanent magnet driving mechanism is mounted on the base, and the electromagnet and permanent magnet driving mechanism connects follower, and to from
Motivation structure provides power source；
The follower connects motion changing mechanism, and the motion changing mechanism is converted to the reciprocating motion of follower perpendicular
To movement；
The motion changing mechanism is also mounted on pedestal, and the motion changing mechanism connects adaptive top bracing mechanism, it is described from
It adapts to top bracing mechanism and realizes up and down motion under the drive of motion changing mechanism.
2. the curved surface thin-wall part vibration control apparatus according to claim 1 based on permanent magnetic drive, which is characterized in that described
Electromagnet and permanent magnet driving mechanism makes follower reciprocatingly move, and the electromagnet and permanent magnet driving mechanism includes the circle with a pair of of internal tooth
Cyclic annular iron core, electromagnetic coil, permanent magnet and permanent magnet shaft；
A pair of of internal tooth of the annular shape iron core is equipped with electromagnetic coil, and permanent magnet is arranged in the accommodation space between two internal tooths,
One end of permanent magnet shaft is fixed with permanent magnet, and the other end is connect with follower.
3. the curved surface thin-wall part vibration control apparatus according to claim 2 based on permanent magnetic drive, which is characterized in that described
Electromagnet and permanent magnet driving mechanism makes follower reciprocatingly move, and the electromagnet and permanent magnet driving mechanism includes soft magnet core, electromagnetic wire
Circle, permanent magnet and permanent magnet shaft；
The soft magnet core is that both ends are long, intermediate two short E shaped iron cores are positioned opposite, forms an accommodation space, and will forever
Magnet is placed in accommodation space, and electromagnetic coil is wound on the both ends of E shaped iron core, and permanent magnet shaft is logical in the middle part of permanent magnet
It is placed in accommodation space vertically behind hole.
4. the curved surface thin-wall part vibration control apparatus according to claim 3 based on permanent magnetic drive, which is characterized in that described
The displacement output for reciprocating through motion changing mechanism and being converted to vertical direction of follower, the follower is cam
Direct acting follower, including cam shaft, cam, the first push rod and the second push rod；
The cam shaft connects cam, first push rod and the second push rod and is distributed along cam radial symmetric and connects with cam
Touching, the cam shaft and the permanent magnet shaft of electromagnet and permanent magnet driving mechanism are connected as one, and the cam is in cam shaft
Rotary oscillation together under drive, when cam rotary oscillation, push the first push rod and the second push rod to move reciprocatingly.
5. the curved surface thin-wall part vibration control apparatus according to claim 4 based on permanent magnetic drive, which is characterized in that described
The shape of cam is ellipse, and the geometric center and cam shaft of cam are overlapped, and the cam and the first push rod, the second push rod are same
When contact, to guarantee that the first push rod and the second push rod do two-way linear motion.
6. the curved surface thin-wall part vibration control apparatus according to claim 4 based on permanent magnetic drive, which is characterized in that described
Cam direct acting follower further includes the first roller and the second roller；
First roller is arranged between the first push rod and cam and connect with the first push rod；Second roller setting is the
It is connect between two push rods and cam and with the second push rod.
7. the curved surface thin-wall part vibration control apparatus according to claim 4 based on permanent magnetic drive, which is characterized in that described
Motion changing mechanism is driven using flexible hinge, and the motion changing mechanism includes movement input part, motion transform middle part
Part and movement output component, the motion transform intermediate member are mounted on the base, and the movement output component is also mounted at
On pedestal；
The movement input part includes two radial motion components, and described two radial motion components are separately connected cam direct acting
The first push rod and the second push rod of follower, so that the movement of the two-way linear of the first push rod and the second push rod is converted to itself
Radial alignment movement；
The movement input part and movement output component are separately connected the motion transform intermediate member, in the motion transform
Between component by the radial alignment for moving input part movement be converted to movement output component vertical direction move along a straight line.
8. the curved surface thin-wall part vibration control apparatus according to claim 1 based on permanent magnetic drive, which is characterized in that described
Adaptive top bracing mechanism is shored head using floating spherical linkage and is contacted with workpiece, according to the variation of machining curve surface of workpiece curvature, certainly
Contact position is adaptively adjusted, it is consistent to the support force of workpiece while guarantee with workpiece real-time contact.
9. the curved surface thin-wall part vibration control apparatus according to claim 1 based on permanent magnetic drive, which is characterized in that described
Motion changing mechanism includes elastic tension frame, obliquity prominence platform, ball and " ┐ " deformation to output precision, " ┐ " deformation
It is fixed to one end of output precision with pedestal, the other end is equipped with ball, and the elastic tension frame is equipped with obliquity prominence platform, described
Obliquity prominence platform is in contact with ball；
The follower includes oval cam；
The periphery setting elastic tension frame of the cam, extrapolability of the elastic tension frame by oval cam produce
Raw deformation in the radial direction, moves up and down ball on obliquity prominence platform, to realize that " ┐ " deformation is vertical to output precision
Displacement output on direction.
10. the curved surface thin-wall part vibration control apparatus according to claim 1 based on permanent magnetic drive, which is characterized in that institute
Stating motion changing mechanism includes ball and " ┐ " deformation to output precision, and " ┐ " deformation is to one end and bottom of output precision
Seat is fixed, and the other end is equipped with ball；
The follower includes rotatable round table surface and the boss that is arranged in round table surface；
It is the ball of motion changing mechanism above the boss of the round table surface, the ball is contacted with boss, and the round table surface exists
Rotary motion is generated under the drive of permanent magnet shaft, so that the boss in round table surface and ball of " ┐ " deformation on output precision
Contact, jack up " ┐ " deformation makes it generate the displacement output on vertical direction to output precision.
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| CN201910590127.6A CN110332277B (en) | 2019-07-02 | 2019-07-02 | Curved surface thin-wall part vibration control device based on permanent magnet drive |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910590127.6A CN110332277B (en) | 2019-07-02 | 2019-07-02 | Curved surface thin-wall part vibration control device based on permanent magnet drive |
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| CN110332277B CN110332277B (en) | 2020-06-12 |
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| US3236122A (en) * | 1963-08-23 | 1966-02-22 | George A Biernson | Damped power drive |
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| CN105429353A (en) * | 2015-12-31 | 2016-03-23 | 上海交通大学 | Magnetic cam driving unit, vibration table device and linear driving device |
| CN105921392A (en) * | 2016-06-14 | 2016-09-07 | 上海交通大学 | Conjugate constant-diameter cam type composite magnetic energy reciprocating vibration platform and driving component and method |
| CN108839592A (en) * | 2013-03-15 | 2018-11-20 | 伯斯有限公司 | The vibration isolation of revolving actuator driving |
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- 2019-07-02 CN CN201910590127.6A patent/CN110332277B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3236122A (en) * | 1963-08-23 | 1966-02-22 | George A Biernson | Damped power drive |
| CN101004150A (en) * | 2007-01-18 | 2007-07-25 | 孙海潮 | Method for changing motion regulation of execution piece controlled by cam |
| CN108839592A (en) * | 2013-03-15 | 2018-11-20 | 伯斯有限公司 | The vibration isolation of revolving actuator driving |
| CN105183000A (en) * | 2015-07-22 | 2015-12-23 | 杨斌堂 | Swing and rotation multi-degree-of-freedom motion generating platform |
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| CN110332277B (en) | 2020-06-12 |
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