CN209167762U - A kind of lens focusing mechanism based on voice coil motor control - Google Patents
A kind of lens focusing mechanism based on voice coil motor control Download PDFInfo
- Publication number
- CN209167762U CN209167762U CN201822083742.1U CN201822083742U CN209167762U CN 209167762 U CN209167762 U CN 209167762U CN 201822083742 U CN201822083742 U CN 201822083742U CN 209167762 U CN209167762 U CN 209167762U
- Authority
- CN
- China
- Prior art keywords
- microscope base
- voice coil
- coil motor
- motor control
- focusing mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Lens Barrels (AREA)
Abstract
The utility model belongs to technical field of machine vision, more particularly to a kind of lens focusing mechanism based on voice coil motor control, including preceding microscope base (1), rear microscope base (2), fixed cylinder (3) and voice coil motor (4), the preceding microscope base (1) is overlapped with the axle center of the rear microscope base (2), the fixed cylinder (3) connect with the rear microscope base (2), and the preceding lens barrel between the voice coil motor (4) and the fixed cylinder (3) by being sequentially connected.The mechanism structure is simple, and focusing precision is high, easy to use, practical.
Description
Technical field
The utility model belongs to technical field of machine vision, and in particular to a kind of lens focusing based on voice coil motor control
Mechanism.
Background technique
Under the overall background of industrial automation, machine vision demand is growing day by day, especially in electronic manufacture, food packaging
In numerous industries such as quality testing, to the resolving accuracies of machine visual lens, it is applicable in the requirements such as working range, optical distortion and gets over
Come higher, the device integration of machine vision is also higher and higher.In addition, pixel dimension is got over as chip technology constantly improves
Next smaller, this requires matching resolution of lens to further increase.However in the prior art, high pixel machine vision
Camera lens is often due to structure is complicated and causes volume excessive, and the Lens of the focusing of manual focusing and servo motor can not
It can do small, be subjected to the limitation for installing and using space size in practical applications, it is difficult to guarantee the precision of camera lens, therefore, urgently
Wish to the device in small space interior focusing.
Notice the continuous improvement with electric machines control technology, voice coil motor technology is constantly mature.Voice coil motor is a kind of
The device of mechanical energy is converted electrical energy into, and realizes the movement of linear type and limited pivot angle, using from eternal magnetic field or energization
The interaction for the magnetic pole in magnetic field that coil-conductor generates generates regular movement, using suitable position feedback and induction
Device control, positioning accuracy can easily reach 100nm, and acceleration is up to 300g.This has inspired us by voice coil motor application
In precise focusing device.
Utility model content
The purpose of this utility model is that: in view of the deficiencies of the prior art, and provide it is a kind of based on voice coil motor control
Lens focusing mechanism enables NI Vision Builder for Automated Inspection to reach splendid imaging effect, and compact-sized, small volume and less weight, is easy to control
System can also realize the purpose of auto-focusing and focusing by related algorithm.
To achieve the above objectives, the present invention adopts the following technical solutions:
A kind of lens focusing mechanism based on voice coil motor control, including preceding microscope base, rear microscope base, fixed cylinder and voice coil electricity
Machine, the preceding microscope base are overlapped with the axle center of the rear microscope base, and the fixed cylinder is connect with the rear microscope base, and the preceding microscope base passes through
It is sequentially connected between the voice coil motor and the fixed cylinder.Voice coil motor is used to provide the driving force of linear motion,
When work, according to lens focusing needs, voice coil motor work, so that being axially subjected to displacement change between preceding microscope base and fixed cylinder
Change, under the drive of fixed cylinder, rear microscope base is subjected to displacement variation, so that the effect of lens focusing is realized, mechanism structure letter
Single, focusing precision is high, easy to use, practical.
As a kind of improvement of the lens focusing mechanism described in the utility model based on voice coil motor control, the voice coil
Motor includes mover coil, stator coil and controller, and the mover coil is overlapped with the axle center of the stator coil, described dynamic
Subcoil, the stator coil are electrically connected with the controller.Under the control of the controller, mover coil and stator coil work
Make, under the action of electromagnetic field, relative displacement axially occurs between mover coil and stator coil, to provide straight line
The driving force effect of movement.
As a kind of improvement of the lens focusing mechanism described in the utility model based on voice coil motor control, the preceding mirror
Seat is provided with card slot, and the stator coil is set to the card slot.It is this to design the fortune so that between preceding microscope base and stator coil
Dynamic state is consistent, and is advantageously implemented the focusing of camera lens.
As a kind of improvement of the lens focusing mechanism described in the utility model based on voice coil motor control, the fixation
Cylinder is provided with stepped hole, and the mover coil is placed in the stepped hole.The setting of stepped hole is prevented for blocking mover coil
Relative displacement occurs between stop subcoil and fixed cylinder, it is this to design the focusing for being advantageously implemented camera lens.
It further include leading as a kind of improvement of the lens focusing mechanism described in the utility model based on voice coil motor control
To structure, the preceding microscope base is slidably connected by the guide frame and the rear microscope base.The setting of guide frame is for preventing
It is had enough to meet the need between preceding microscope base and rear microscope base, to improve the stability of camera lens working condition at work；According to the need of work
It wants, multiple, to be oriented to increase effects can be set into the quantity of guide frame.
As a kind of improvement of the lens focusing mechanism described in the utility model based on voice coil motor control, the guiding
Structure includes guide pin and guide groove, and the guide pin and the guide groove cooperate.At work, along guide groove opposite sliding occurs for guide pin,
To play the effect of guiding.
As a kind of improvement of the lens focusing mechanism described in the utility model based on voice coil motor control, the guide pin
It is set to the preceding microscope base, the guide groove is set to the rear microscope base.
As a kind of improvement of the lens focusing mechanism described in the utility model based on voice coil motor control, the guide pin
It is set to the rear microscope base, the guide groove is set to the preceding microscope base.
It further include leading as a kind of improvement of the lens focusing mechanism described in the utility model based on voice coil motor control
Set, the guide sleeve are sheathed on the guide pin.Guide sleeve has certain elasticity, at work, for buffering between guide pin and guide groove
Collision, thus avoid to camera lens work influence, improve the stability of work.
As a kind of improvement of the lens focusing mechanism described in the utility model based on voice coil motor control, the guide pin
Fixed form be to be threadedly coupled that fixed, riveting is fixed or is welded and fixed.According to the actual situation, the fixed form of guide pin can spirit
It is arranged livingly.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model
Improper restriction.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of embodiment 1 in the utility model；
Fig. 2 is the exploded view of Fig. 1；
Fig. 3 is the structural schematic diagram of embodiment 2 in the utility model；
Wherein: microscope base before 1-；1'- card slot；Microscope base after 2-；3- fixed cylinder；3'- stepped hole；4- voice coil motor；41- mover
Coil；42- stator coil；43- controller；5- guide frame；51- guide pin；52- guide groove；53- guide sleeve.
Specific embodiment
As used some vocabulary to censure specific components in the specification and claims.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer within an acceptable error range, those skilled in the art can within a certain error range solve described in
Technical problem basically reaches the technical effect.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "horizontal" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally
Utility model and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
The utility model is described in further detail below in conjunction with attached drawing, but not as the restriction to the utility model.
Embodiment 1
As shown in Figs. 1-2, a kind of lens focusing mechanism based on voice coil motor control, including it is preceding microscope base 1, rear microscope base 2, solid
Safety barrel 3 and voice coil motor 4, preceding microscope base 1 are overlapped with the axle center of rear microscope base 2, and fixed cylinder 3 is connect with rear microscope base 2, and preceding microscope base 1 passes through
It is sequentially connected between voice coil motor 4 and fixed cylinder 3.Voice coil motor 4 is used to provide the driving force of linear motion, is working
When, according to lens focusing needs, voice coil motor 4 works, so that being axially subjected to displacement change between preceding microscope base 1 and fixed cylinder 3
Change, under the drive of fixed cylinder 3, rear microscope base 2 is subjected to displacement variation, so that the effect of lens focusing is realized, the mechanism structure
Simply, focusing precision is high, easy to use, practical.
Preferably, voice coil motor 4 includes mover coil 41, stator coil 42 and controller 43, mover coil 41 and stator
The axle center of coil 42 is overlapped, and mover coil 41, stator coil 42 are electrically connected with controller 43.Under the control of controller 43,
Mover coil 41 and stator coil 42 work, under the action of electromagnetic field, along axis between mover coil 41 and stator coil 42
To relative displacement occurs, to provide the driving force effect of linear motion.
Preferably, preceding microscope base 1 is provided with card slot 1', and stator coil 42 is set to card slot 1'.This design is so that preceding microscope base 1
Motion state between stator coil 42 is consistent, and is advantageously implemented the focusing of camera lens.
Preferably, fixed cylinder 3 is provided with stepped hole 3', and mover coil 41 is placed in stepped hole 3'.Stepped hole 3''s sets
It sets for blocking mover coil 41, prevents from that relative displacement occurs between mover coil 41 and fixed cylinder 3, this design is conducive to reality
The focusing of existing camera lens.
The utility model further includes guide frame 5, and preceding microscope base 1 is slidably connected by guide frame 5 with rear microscope base 2.Guiding
The setting of structure 5 is had enough to meet the need between preceding microscope base 1 and rear microscope base 2 for preventing, to improve camera lens working condition at work
Stability；According to requirements of one's work, multiple, to be oriented to increase effects is can be set into the quantity of guide frame 5.
Preferably, guide frame 5 includes guide pin 51 and guide groove 52, and guide pin 51 and guide groove 52 cooperate.At work, guide pin 51
Occur to slide relatively along guide groove 52, to play the effect of guiding.
Preferably, microscope base 1 before guide pin 51 is set to, guide groove 52 are set to rear microscope base 2.
It preferably, further include guide sleeve 53, guide sleeve 53 is sheathed on guide pin 51.Guide sleeve 53 has certain elasticity, at work,
For buffering the collision between guide pin 51 and guide groove 52, to avoid the influence to work camera lens, the stability of work is improved.
Preferably, the fixed form of guide pin 51 is to be threadedly coupled fixed, riveting to fix or be welded and fixed.According to practical feelings
The fixed form of condition, guide pin 51 can be flexibly set.
The working principle of the utility model is: at work, under the control of controller 43, mover coil 41 and stator line
42 work of circle, under the action of electromagnetic field, axially occurs relative displacement between mover coil 41 and stator coil 42, thus
The driving force effect of linear motion is provided, according to lens focusing needs, voice coil motor 4 works, so that preceding microscope base 1 and fixed cylinder
Variation is axially subjected to displacement between 3, under the drive of fixed cylinder 3, rear microscope base 2 is subjected to displacement variation, to realize mirror
The effect of head focusing；The setting of guide frame 5 is had enough to meet the need between preceding microscope base 1 and rear microscope base 2 for preventing, to improve camera lens
The stability of working condition at work.
Embodiment 2
As shown in figure 3, unlike the first embodiment: guide pin 51 is set to rear microscope base 2 in the present embodiment, and guide groove 52 is arranged
In preceding microscope base 1.
Other structures are in the same manner as in Example 1, and which is not described herein again.
Several preferred embodiments of the present invention have shown and described in above description, but as previously described, it should be understood that this
Utility model is not limited to forms disclosed herein, and should not be regarded as an exclusion of other examples, and can be used for various
Other combinations, modification and environment, and above-mentioned introduction or related fields can be passed through within the scope of the inventive concept described herein
Technology or knowledge be modified.And changes and modifications made by those skilled in the art do not depart from the spirit and model of the utility model
It encloses, then it all should be in the protection scope of the appended claims for the utility model.
Claims (10)
1. it is a kind of based on voice coil motor control lens focusing mechanism, it is characterised in that: including preceding microscope base (1), rear microscope base (2),
Fixed cylinder (3) and voice coil motor (4), the preceding microscope base (1) with it is described after the axle center of microscope base (2) is overlapped, the fixed cylinder (3) and
Microscope base (2) connection after described, the preceding microscope base (1) between the voice coil motor (4) and the fixed cylinder (3) by being driven
Connection.
2. the lens focusing mechanism as described in claim 1 based on voice coil motor control, it is characterised in that: the voice coil motor
It (4) include mover coil (41), stator coil (42) and controller (43), the mover coil (41) and the stator coil
(42) axle center is overlapped, and the mover coil (41), the stator coil (42) are electrically connected with the controller (43).
3. the lens focusing mechanism as claimed in claim 2 based on voice coil motor control, it is characterised in that: the preceding microscope base
(1) it is provided with card slot (1'), (1') the stator coil (42) is set to the card slot.
4. the lens focusing mechanism as claimed in claim 2 based on voice coil motor control, it is characterised in that: the fixed cylinder
(3) it is provided with stepped hole (3'), it is (3') interior that the mover coil (41) is placed in the stepped hole.
5. the lens focusing mechanism as described in claim 1 based on voice coil motor control, it is characterised in that: further include guiding knot
Structure (5), the preceding microscope base (1) are slidably connected by the guide frame (5) and the rear microscope base (2).
6. the lens focusing mechanism as claimed in claim 5 based on voice coil motor control, it is characterised in that: the guide frame
It (5) include guide pin (51) and guide groove (52), the guide pin (51) and the guide groove (52) cooperate.
7. the lens focusing mechanism as claimed in claim 6 based on voice coil motor control, it is characterised in that: the guide pin (51)
It is set to the preceding microscope base (1), the guide groove (52) is set to the rear microscope base (2).
8. the lens focusing mechanism as claimed in claim 6 based on voice coil motor control, it is characterised in that: the guide pin (51)
It is set to the rear microscope base (2), the guide groove (52) is set to the preceding microscope base (1).
9. the lens focusing mechanism as claimed in claim 6 based on voice coil motor control, it is characterised in that: further include guide sleeve
(53), the guide sleeve (53) is sheathed on the guide pin (51).
10. the lens focusing mechanism as claimed in claim 6 based on voice coil motor control, it is characterised in that: the guide pin
(51) fixed form is to be threadedly coupled fixed, riveting to fix or be welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822083742.1U CN209167762U (en) | 2018-12-12 | 2018-12-12 | A kind of lens focusing mechanism based on voice coil motor control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822083742.1U CN209167762U (en) | 2018-12-12 | 2018-12-12 | A kind of lens focusing mechanism based on voice coil motor control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209167762U true CN209167762U (en) | 2019-07-26 |
Family
ID=67343381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822083742.1U Active CN209167762U (en) | 2018-12-12 | 2018-12-12 | A kind of lens focusing mechanism based on voice coil motor control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209167762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500919A (en) * | 2019-09-09 | 2019-11-26 | 重庆连芯光电技术研究院有限公司 | A kind of the laser system of defense and method of quick high accuracy focusing |
-
2018
- 2018-12-12 CN CN201822083742.1U patent/CN209167762U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500919A (en) * | 2019-09-09 | 2019-11-26 | 重庆连芯光电技术研究院有限公司 | A kind of the laser system of defense and method of quick high accuracy focusing |
| CN110500919B (en) * | 2019-09-09 | 2021-10-26 | 重庆连芯光电技术研究院有限公司 | Laser defense system and method for rapid high-precision focusing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69124026T2 (en) | Optical device with a drive unit for adjusting a lens | |
| DE112013006119B4 (en) | Optical scanner and projector | |
| CN114545719B (en) | Automatic focusing device, projection equipment and automatic focusing method | |
| KR20200015051A (en) | Lens Actuator and Camera module including the same | |
| CN104678532A (en) | Zooming and focusing device and zoom lens | |
| CN211040217U (en) | Multidimensional adjusting device for camera | |
| CN209167762U (en) | A kind of lens focusing mechanism based on voice coil motor control | |
| US20120087022A1 (en) | Linear motor and lens unit | |
| US20220357543A1 (en) | Optical system | |
| CN103969786A (en) | Varifocal mechanism of varifocal television system | |
| CN110568577A (en) | Lens focusing structure | |
| CN103364933A (en) | Digital cam continuous zooming system | |
| US20150049397A1 (en) | Springless voice coil actuator and pre-compression magnetic force calibration method thereof | |
| US9002190B2 (en) | Optical anti-shake driving structure | |
| CN109027560B (en) | High-precision XY moving platform and implementation method thereof | |
| CN100357776C (en) | Optical lens driving apparatus | |
| CN104280854A (en) | Focusing structure, lens module and camera module provided with lens module | |
| US20110050006A1 (en) | Actuator | |
| CN105589169A (en) | Closed-loop AF automatic focusing lens driving device | |
| CN114185147A (en) | Zoom lens structure capable of guaranteeing consistency of optical axes | |
| CN209086527U (en) | A kind of camera adjusting mechanism of preceding microscope base floating focusing | |
| JP3693059B2 (en) | Lens barrel | |
| CN102789036A (en) | Focusing mechanism | |
| CN113890965A (en) | Linkage device, camera module and electronic equipment | |
| CN112684570A (en) | Motorized zoom lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |