CN208272794U - A kind of high-precision Z-axis structure of voice coil motor driving - Google Patents
A kind of high-precision Z-axis structure of voice coil motor driving Download PDFInfo
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- CN208272794U CN208272794U CN201820664461.2U CN201820664461U CN208272794U CN 208272794 U CN208272794 U CN 208272794U CN 201820664461 U CN201820664461 U CN 201820664461U CN 208272794 U CN208272794 U CN 208272794U
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- voice coil
- coil motor
- precision
- fixed plate
- load board
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Abstract
The utility model discloses a kind of high-precision Z-axis structures of voice coil motor driving, including load board, voice coil motor and fixed plate, the voice coil motor include voice coil motor rotor and voice coil motor stator, and the voice coil motor rotor is connect with described load board；The fixed plate is connect with the voice coil motor stator.The high-precision Z-axis structure of the voice coil motor driving does not need intermediate transmission mechanism since the voice coil motor is direct driving motor, so that equipment occupation space is small, precision is high.
Description
Technical field
The utility model relates to the high-precision Z-axis that mechanical Z axis driving structure field more particularly to a kind of voice coil motor drive
Structure.
Background technique
Existing Z axis structure is usually used servo motor and drives screw rod, or drives belt mode using servo motor
As driving device.Guide rail or guide rod are installed as support by the side of equipment, load is arranged on side loads plate；This
Kind Z axis structure occupied space is bigger, and length is long, and the center of gravity laterally offset of load is larger, and rigidity is poor, influences equipment
Movenent performance and assembly space；In addition, driving screw rod or servo motor to drive belt mode as driving using servo motor
The equipment running precision of device is not high.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of high-precision Z-axis structure of voice coil motor driving with a novel purpose.
To achieve the above object, the utility model embodiment provides a kind of high-precision Z-axis structure of voice coil motor driving, institute
The high-precision Z-axis structure for stating voice coil motor driving includes: load board；
Voice coil motor, the voice coil motor include voice coil motor rotor and voice coil motor stator, the voice coil motor rotor
It is connect with described load board；
Fixed plate, the fixed plate are connect with the voice coil motor stator.
One embodiment according to the present utility model further includes guideway, and the guideway includes sliding block and sliding rail, described
Sliding block is slidably connected with the sliding rail, and described sliding block one end is connect with the fixed plate, described sliding rail one end and the load board
Connection.
One embodiment according to the present utility model, the guideway are respectively equipped with four, and four guideways are uniform
It is arranged in the fixed plate.
One embodiment according to the present utility model, further includes power-off holding meanss, and the power-off holding meanss are used for
The voice coil motor supports the load board when powering off.
One embodiment according to the present utility model, the power-off holding meanss include compressed spring, spring guide and bullet
Spring guide rod；The spring guide is connect with the fixed plate, and the compressed spring is arranged in the spring guide, spring guide
It is arranged in compressed spring, described spring guide one end is connect with the load board.
One embodiment according to the present utility model, the power-off holding meanss are respectively equipped with two, two power-off
Holding meanss are separately positioned on the position for closing on two sides of the fixed plate.
One embodiment according to the present utility model further includes grating feedback device, and the grating feedback device is used for institute
State the positioning of load board displacement height.
One embodiment according to the present utility model, the grating feedback device include grating scale and grating scale fixed plate,
On the slide block, grating scale fixed plate one end is connect with the load board for the grating scale setting.
The center of one embodiment according to the present utility model, the voice coil motor rotor and described load board connects
It connects.
One embodiment according to the present utility model further includes limiting device, the limiting device include: upper limit position block and
Lower position block, the upper limit position block are connect with the fixed plate, and the lower limit block is connect with the sliding rail；The upper limit position block position
Inverted L structure, for limiting the lower limit block displacement height.
In the utility model embodiment, connected by the voice coil motor rotor on the voice coil motor with described load board
It connects；The fixed plate is connect with the voice coil motor stator, since the voice coil motor is direct driving motor, and does not need intermediate biography
Motivation structure (for example, driving screw rod mode or servo motor drive belt mode to be driven using servo motor), so that setting
Standby to occupy little space, precision is high.
Detailed description of the invention
Fig. 1 is the high-precision Z-axis structural schematic diagram of voice coil motor provided by the embodiment of the utility model driving；
Fig. 2 is the high-precision Z-axis structural decomposition diagram of voice coil motor provided by the embodiment of the utility model driving；
Fig. 3 is another decomposition diagram of high-precision Z-axis structure of voice coil motor provided by the embodiment of the utility model driving；
Fig. 4 is another decomposition diagram of high-precision Z-axis structure of voice coil motor provided by the embodiment of the utility model driving；
Fig. 5 be voice coil motor provided by the embodiment of the utility model driving high-precision Z-axis structure (spring guide is not shown
Show) another decomposition diagram.
Appended drawing reference:
Load board 10；
Voice coil motor 20；
Voice coil motor rotor 201；
Voice coil motor stator 202；
Fixed plate 30；
Guideway 40；
Sliding block 401；
Sliding rail 402；
Grating feedback device 50；
Grating scale fixed plate 501；
Grating scale 502；
Power off holding meanss 60；
Compressed spring 601；
Compressed spring bottom 6011；
6012 at the top of compressed spring；
Spring guide 602；
Spring guide 603；
Spring guide bottom 6031；
6032 at the top of spring guide；
Limiting device 70；
Upper limit position block 701；
Lower position block 702.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described.Unless otherwise defined,
All technical and scientific terms used herein are generally understood with person skilled in the technical field of the present invention
Meaning it is identical.Terminology used in the description of the utility model herein is intended merely to description specific embodiment
Purpose, it is not intended that in limitation the utility model.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the utility model., which there is the phrase, in each position in the description to be each meant
Identical embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art are explicit
Ground and implicitly understand, embodiment described herein can be combined with other embodiments.
The utility model embodiment provides a kind of high-precision Z-axis structure of voice coil motor driving, comprising: load board 10, sound
Motor 20 and fixed plate 30 are enclosed, the voice coil motor 20 includes voice coil motor rotor 201 and voice coil motor stator 202, the sound
Circle rotor 201 is connect with described load board 10；The fixed plate 30 is connect with the voice coil motor stator 202.
Specifically, refering to fig. 1-2, the voice coil motor 20 includes voice coil motor rotor 201 and voice coil motor stator 202,
The voice coil motor rotor 201 is connect with described load board 10；The fixed plate 30 is connect with the voice coil motor stator 202；
It is, the voice coil motor stator 202 is arranged in fixed plate 30, the voice coil motor rotor 201 is arranged in load board 10
On, after voice coil motor 20 powers on, 201 stretching motion of voice coil motor rotor, so as to drive load board 10 along Z
Axis direction displacement.
Since the voice coil motor 20 is direct driving motor, and intermediate transmission mechanism is not needed (for example, driving using servo motor
Dynamic screw rod mode or servo motor drive belt mode are driven) so that equipment occupation space is small, precision is high.
It further, further include guideway 40 in an example of the utility model, the guideway 40 includes sliding block
401 and sliding rail 402, the sliding block 401 be slidably connected with the sliding rail 402, described 401 one end of sliding block and the fixed plate 30 connect
It connects, described 402 one end of sliding rail is connect with the load board 10.
Specifically, the sliding rail 402 is connect by sliding rail structure with the sliding block 401 refering to Fig. 2 and Fig. 3.Namely
It says, can mutually be slided by the sliding rail structure between the sliding block 401 and the sliding rail 402.Due to the sliding block 401 1
End is connect with the fixed plate 30, and described 402 one end of sliding rail is connect with the load board 10.When the voice coil motor 20 connects electricity
Behind source, the sliding rail 402 is moved along Z-direction simultaneously with the load board 10.The sliding block 401 is fixed on the fixed plate
On 30, due to the sliding rail structure between the sliding block 401 and sliding rail 402, the structural rigidity and movenent performance of Z axis are improved.
Further, in an example of the utility model, the guideway 40 is respectively equipped with four, leads described in four
Rail pair 40 is uniformly arranged in the fixed plate 30.
Specifically, four guideways 40 are uniformly arranged in the fixed plate 30 with continued reference to Fig. 2 and Fig. 3.To
Further improve the structural rigidity and movenent performance of Z axis.
Further, in an example of the utility model, which is characterized in that further include power-off holding meanss 60, institute
Power-off holding meanss 60 are stated to be used to support the load board 10 in the voice coil motor 20 power-off.
Specifically, after the voice coil motor 20 is powered, voice coil motor rotor 201 is along Z axis side with continued reference to Fig. 2 and Fig. 3
It is displaced in yearning, the load board 10 is promoted.When the voice coil motor 20 power-off, the load board 10 is due to the voice coil
Motor 20 loses support force and falls down, and the power-off holding meanss 60 are supported in the load board 10 due to losing voice coil motor 20
Power and while falling down, provide support force.The support force fall the load board 10 on Z axis will not quickly, thus strong with other component
Strong collision, and cause unnecessary loss.
Further, in an example of the utility model, the power-off holding meanss 60 include compressed spring 601,
Spring guide 602 and spring guide 603；The spring guide 602 is connect with the fixed plate 30, and the compressed spring 601 is set
It sets in the spring guide 602, spring guide 603 is arranged in compressed spring 601, described 603 one end of spring guide and institute
State the connection of load board 10.
Specifically, the spring guide 602 and spring guide 603 are separately positioned on institute with continued reference to Fig. 2, Fig. 3 and Fig. 5
The outside and inside of compressed spring 601 are stated, to carry out telescopic direction guidance to the compressed spring 601, guarantees the compression
Spring 601 is preferably flexible toward Z-direction.
When the voice coil motor 20 power-off, the load board 10 is fallen since the voice coil motor 20 loses support force
It falls, in 10 dropping process of load board, the compressed spring 601 is compressed, the compressed spring 601 is described negative
Support plate 10 provides certain support force, plays certain buffer function in 10 dropping process of load board.Avoid load board 10
It quickly falls, with other component strong collision.Refering to Fig. 5, and the spring guide 603 is shorter in length than the length of compressed spring 601
Degree, avoids compressed spring 601 in compression process, mutually supports between the spring guide 603 and load board 10 and fixed plate 30
Touching.
Further, in an example of the utility model, the power-off holding meanss 60 are respectively equipped with two, two
The power-off holding meanss 60 are separately positioned on the position for closing on two sides of the fixed plate 30.
Specifically, the power-off holding meanss 60 are respectively equipped with two, and two power-off are protected with continued reference to Fig. 2 and Fig. 3
That holds that device 60 is evenly provided on the fixed plate 30 respectively closes on the position of two sides, to further enhance the load board
10 support force.In addition, two sides are closed on by be arranged in the fixed plate 30, so that support force more balances.
It further, further include grating feedback device 50 in an example of the utility model, the grating feedback dress
50 are set to position for 10 displacement height of load board.
Specifically, the grating feedback device 50 is positioned for 10 displacement height of load board with continued reference to Fig. 2, and
The 10 displacement height location data of load board is transmitted to external controller, by the external controller to the voice coil electricity
Machine 20 carries out extension and contraction control adjusting, closed-loop control is formed, to realize the high-precision Z-direction Bit andits control of the load board 10.
Further, in an example of the utility model, the grating feedback device 50 includes grating scale 502 and light
Grid ruler fixed plate 501, the grating scale 502 are arranged on the sliding block 401, described 501 one end of grating scale fixed plate with it is described
Load board 10 connects.
Specifically, referring to Fig.2, described 501 one end of grating scale fixed plate is connect with the load board 10, that is to say, that institute
Stating grating scale fixed plate 501 can go up and down jointly along Z-direction with the load board 10 and transport under the drive of the voice coil motor 20
It is dynamic.The grating scale 502 is arranged on the sliding block 401, since the sliding block 401 is fixed in fixed plate 30, the light
Grid ruler 502 is stationary state when in use, so that the grating scale 502 is mobile relative to the grating scale fixed plate 501.Mobile
Position then passes through the grating scale 502 and measures.The displacement that the grating scale 502 measures then is the opposite position of the load board 10
It moves.
Further, in an example of the utility model, the voice coil motor rotor 201 and the load board 10
Center connection.Specifically, the voice coil motor rotor 201 is connect with the center of the load board 10, so that described
The driving axle center of voice coil motor 20 and the center of load board 10 are overlapped, and eccentric situation are avoided the occurrence of, so that Z axis structural rigidity is more
It is good.
It further, further include limiting device 70 in an example of the utility model, the limiting device 70 wraps
Include: upper limit position block 701 and lower position block 702, the upper limit position block 701 are connect with the fixed plate 30, the lower limit block and institute
State the connection of sliding rail 402；The upper limit position block 701 is inverted L structure, for limiting the lower limit block displacement height.
Specifically, passing through 702 pairs of institutes of the upper limit position block 701 and lower position block by the limiting device 70 refering to Fig. 4
It states sliding rail 402 and carries out lifting height limit, since the sliding rail 402 is fixedly connected with the load board 10, lower position block 702
It is inconsistent with the upper limit position block 701 after shifting certain distance, to be limited to the lifting height of the load board 10.And institute
Upper limit position block 701 is stated to connect with the fixed plate 30.Make the motion parts of the load board 10 and the fixed part of fixed plate 30
Connection it is more reliable.
The above is only the embodiments of the present invention, are not intended to limit the scope of the patents of the utility model, although referring to before
Embodiment is stated the utility model is described in detail, it, still can be right for coming for those skilled in the art
Technical solution documented by aforementioned each specific embodiment is modified, or carries out equivalent replace to part of technical characteristic
It changes.All equivalent structures done using the utility model specification and accompanying drawing content are directly or indirectly used in other correlations
Technical field, similarly within the utility model patent protection scope.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are not departing from the utility model
Principle and objective in the case where above-described embodiment can be changed in the scope of the utility model, modify, replace and
Modification.
Claims (10)
1. a kind of high-precision Z-axis structure of voice coil motor driving characterized by comprising
Load board；
Voice coil motor, the voice coil motor include voice coil motor rotor and voice coil motor stator, the voice coil motor rotor and institute
Say that load board connects；
Fixed plate, the fixed plate are connect with the voice coil motor stator.
2. the high-precision Z-axis structure of voice coil motor driving according to claim 1, which is characterized in that it further include guideway,
The guideway includes sliding block and sliding rail, and the sliding block is slidably connected with the sliding rail, described sliding block one end and the fixed plate
Connection, described sliding rail one end is connect with the load board.
3. the high-precision Z-axis structure of voice coil motor driving according to claim 2, which is characterized in that the guideway point
There are four not setting, four guideways are uniformly arranged in the fixed plate.
4. the high-precision Z-axis structure of voice coil motor driving according to claim 1 to 3, which is characterized in that also
Including powering off holding meanss, the power-off holding meanss are used to support the load board in voice coil motor power-off.
5. the high-precision Z-axis structure of voice coil motor driving according to claim 4, which is characterized in that the power-off is kept
Device includes compressed spring, spring guide and spring guide；The spring guide is connect with the fixed plate, the compressed spring
It is arranged in the spring guide, spring guide is arranged in compressed spring, and described spring guide one end and the load board connect
It connects.
6. the high-precision Z-axis structure of voice coil motor driving according to claim 5, which is characterized in that the power-off is kept
Device is respectively equipped with two, and two power-off holding meanss are separately positioned on the position for closing on two sides of the fixed plate.
7. the high-precision Z-axis structure of voice coil motor driving according to claim 2, which is characterized in that further include that grating is anti-
Device is presented, the grating feedback device is positioned for the load board displacement height.
8. the high-precision Z-axis structure of voice coil motor driving according to claim 7, which is characterized in that the grating feedback
Device includes grating scale and grating scale fixed plate, and the grating scale is arranged on the slide block, grating scale fixed plate one end
It is connect with the load board.
9. the high-precision Z-axis structure of voice coil motor driving according to claim 1, which is characterized in that the voice coil motor
Rotor is connect with the center of described load board.
10. the high-precision Z-axis structure of voice coil motor driving according to claim 2, which is characterized in that further include limit dress
It sets, the limiting device includes: upper limit position block and lower position block, and the upper limit position block is connect with the fixed plate, the lower limit
Block is connect with the sliding rail；The upper limit position block position inverted L structure, for limiting the lower limit block displacement height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820664461.2U CN208272794U (en) | 2018-05-04 | 2018-05-04 | A kind of high-precision Z-axis structure of voice coil motor driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820664461.2U CN208272794U (en) | 2018-05-04 | 2018-05-04 | A kind of high-precision Z-axis structure of voice coil motor driving |
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| Publication Number | Publication Date |
|---|---|
| CN208272794U true CN208272794U (en) | 2018-12-21 |
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ID=64682087
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| CN201820664461.2U Active CN208272794U (en) | 2018-05-04 | 2018-05-04 | A kind of high-precision Z-axis structure of voice coil motor driving |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983776A (en) * | 2020-09-21 | 2020-11-24 | 中国科学院长春光学精密机械与物理研究所 | Micro-displacement actuator |
-
2018
- 2018-05-04 CN CN201820664461.2U patent/CN208272794U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983776A (en) * | 2020-09-21 | 2020-11-24 | 中国科学院长春光学精密机械与物理研究所 | Micro-displacement actuator |
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