CN111313649A - Voice coil motor three-axis linkage platform - Google Patents
Voice coil motor three-axis linkage platform Download PDFInfo
- Publication number
- CN111313649A CN111313649A CN202010236745.3A CN202010236745A CN111313649A CN 111313649 A CN111313649 A CN 111313649A CN 202010236745 A CN202010236745 A CN 202010236745A CN 111313649 A CN111313649 A CN 111313649A
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- China
- Prior art keywords
- platform
- axis
- base
- coil winding
- voice coil
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0358—Lorentz force motors, e.g. voice coil motors moving along a curvilinear path
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention discloses a voice coil motor three-axis linkage platform which comprises a base, an X-axis platform, a Y-axis platform and a rotating platform, wherein the base, the X-axis platform, the Y-axis platform and the rotating platform are arranged from bottom to top; the improved X-axis magnetic rotating platform is characterized in that a first coil winding is arranged in the base, an X-axis magnet and a second coil winding are arranged in the X-axis platform, the X-axis platform can be moved along the length direction of the base, a Y-axis magnet is arranged in the Y-axis platform, the Y-axis platform can be moved along the length direction of the X-axis platform, the rotating platform comprises a fixed magnet and a rotating seat located on the fixed magnet, the fixed magnet is connected with the Y-axis platform, and a third coil winding is arranged below the rotating seat. The three-axis linkage platform is accurate in positioning, small in size, capable of being installed in a narrow space, high in frequency and response, free of noise and free of maintenance, and adopts a magnetic suspension non-contact type motion mode.
Description
Technical Field
The invention belongs to the technical field of precision machinery and instruments, and particularly relates to a voice coil motor three-axis linkage platform.
Background
With the development of science and technology, a linkage platform with high precision, high resolution and flexible control is urgently needed in the technical fields of electronics, optics, mechanical manufacturing and the like to directly work or cooperate with other instruments and equipment to complete high-precision positioning and measurement.
The traditional linkage platform usually adopts a high-precision displacement platform, the high-precision displacement platform adopts a linear motor platform, the size of the linear motor platform is large, the installation position is easy to limit, the response speed is slow, and meanwhile, the use cost is high, so that the linkage platform is not suitable for popularization and use.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a voice coil motor three-axis linkage platform to solve the problems in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: a voice coil motor three-axis linkage platform comprises a base, an X-axis platform, a Y-axis platform and a rotary platform which are arranged from bottom to top; the improved X-axis magnetic rotating platform is characterized in that a first coil winding is arranged in the base, an X-axis magnet and a second coil winding are arranged in the X-axis platform, the X-axis platform can be moved along the length direction of the base, a Y-axis magnet is arranged in the Y-axis platform, the Y-axis platform can be moved along the length direction of the X-axis platform, the rotating platform comprises a fixed magnet and a rotating seat located on the fixed magnet, the fixed magnet is connected with the Y-axis platform, and a third coil winding is arranged below the rotating seat.
In a preferred embodiment of the present invention, the fixed magnet includes two magnetic blocks arranged in a central symmetry manner, and the magnetic blocks are circular structures.
In a preferred embodiment of the present invention, the third coil winding is located between two magnetic blocks.
In a preferred embodiment of the invention, the third coil winding is connected to the rotary base.
In a preferred embodiment of the present invention, the base and the X-axis platform are both provided with a guiding assembly, and the guiding assembly includes a guiding rail and a sliding block.
In a preferred embodiment of the present invention, the base is provided with a first coil connector, the X-axis platform is provided with a second coil connector, and the rotating base is provided with a third coil connector.
In a preferred embodiment of the present invention, a cavity is formed in the center of the fixed magnet, a bearing is disposed in the cavity, and the third coil winding is connected to the bearing.
In a preferred embodiment of the present invention, a position-limiting pin is disposed on the fixed magnet, and the position-limiting pin corresponds to the position of the third coil winding.
The invention solves the defects in the background technology, and has the following beneficial effects:
the invention forms a three-axis linkage platform under the matching action of the base, the X-axis platform, the Y-axis platform and the rotating platform, has accurate positioning, adopts modular design, has small volume, can be installed in a narrow space, simultaneously adopts the voice coil motor as a motion module, has the characteristics of high frequency and high response, adopts a magnetic suspension non-contact motion mode, has no noise and is free from maintenance.
Drawings
The invention is further explained below with reference to the figures and examples;
FIG. 1 is a schematic overall structure of a preferred embodiment of the present invention;
FIG. 2 is an exploded view of a preferred embodiment of the present invention;
in the figure: 1. a base; 2. an X-axis stage; 3. a Y-axis stage; 4. rotating the platform; 41. a fixed magnet; 42. a rotating base; 5. connecting columns; 6. a third coil winding; 7. a guide rail; 8. a slider; 9. a first coil connector; 10. a second coil connector; 11. a third coil connection; 12. and a limiting pin.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings and examples, which are simplified schematic drawings and illustrate only the basic structure of the invention in a schematic manner, and thus show only the constituents relevant to the invention.
As shown in fig. 1 and 2, a voice coil motor three-axis linkage platform comprises a base 1, an X-axis platform 2, a Y-axis platform 3 and a rotating platform 4, which are arranged from bottom to top; be provided with first coil winding in the base 1, be provided with X axle magnet and second coil winding in the X axle platform 2, X axle platform 2 can be followed 1 length direction of base and moved, be provided with Y axle magnet in the Y axle platform 3, Y axle platform 3 can be followed 2 length direction of X axle platform and moved, rotary platform 4 includes fixed magnet 41 and is located the roating seat 42 on the fixed magnet 41, fixed magnet 41 is connected with Y axle platform 3, roating seat 42 below is provided with third coil winding 6.
In this embodiment, an object to be adjusted is placed on the rotary base 42, when the object needs to be adjusted in the X-axis direction, the first coil winding in the base 1 is energized through the first coil connector 9, and after the energization, the first coil winding receives a magnetic field force in the X-axis direction in a magnetic field generated by the X-axis magnet, and the X-axis platform 2 will move in the length direction of the base 1 because the first coil winding is fixed; when the Y-axis adjustment of an object is needed, a second coil winding in the X-axis platform 2 is electrified through a second coil joint 10, after the electrification, the second coil winding receives the magnetic field force along the Y-axis direction in the magnetic field generated by the Y-axis magnet, and the Y-axis platform 3 moves along the length direction of the X-axis platform 2 because the second coil winding is fixed; when the object needs to be rotationally adjusted, the third coil winding 6 is energized through the third coil connector 11, and the third coil winding 6 is acted by the magnetic force in the magnetic field generated by the fixed magnet 41, and the fixed magnet 41 is fixed on the Y-axis platform 3, so that the third coil winding 6 rotates to drive the rotary seat 42 to rotate, and the object is rotationally adjusted.
Specifically, the first coil joint 9, the second coil joint 10 and the third coil joint 11 are all powered on at the same time, the magnitude of the powered current is controlled by the control system, when the first coil joint 9 is powered on, the X-axis platform 2 moves to drive the rotary base 42 to move along the X-axis direction, and at the moment, the second coil joint 10 and the third coil joint 11 are both powered on, so that the situation that the X-axis, the Y-axis and the rotating axis interfere with each other is avoided.
In this embodiment, the fixed magnet 41 includes two magnetic blocks arranged in a central symmetry manner, the magnetic blocks are circular structural bodies, and the magnetic fields generated by the two magnetic blocks with circular structures can make the magnetic field force applied to the third coil winding 6 in the magnetic field be a circumferential tangential force with a direction changing constantly, so as to realize the rotation of the third coil winding 6.
Specifically, the third coil winding 6 is located between two magnetic blocks.
In this embodiment, the third coil winding 6 is connected to the rotary base 42, and when the third coil winding 6 rotates, the rotary base 42 can be synchronously rotated.
In this embodiment, all be provided with the direction subassembly on base 1 and the X axle platform 2, the direction subassembly includes guide rail 7 and slider 8, adopts guide rail 7 and slider 8 to lead to the motion of X axle platform 2, Y axle platform 3, guarantees the motion precision.
Further, a first coil connector 9 is disposed on the base 1, a second coil connector 10 is disposed on the X-axis platform 2, and a third coil connector 11 is disposed on the rotary base 42, and the coil connectors respectively energize corresponding coils.
Specifically, the center of the fixed magnet 41 is provided with a cavity, a bearing is arranged in the cavity, the third coil winding 6 is connected with the bearing, the bearing is positioned above the Y-axis platform 3 and is not contacted with the Y-axis platform 3, when the Y-axis platform 3 moves, the rotating base 42 is driven by the fixed magnet 41 to move, and when the third coil winding 6 rotates, the interference with the Y-axis platform 3 cannot occur.
In the present embodiment, the fixed magnet 41 is provided with the stopper pin 12, the stopper pin 12 corresponds to the position of the third coil winding 6, and the stopper pin 12 can limit the rotational position of the third coil winding 6 to avoid excessive rotation.
In summary, under the cooperation of the base 1, the X-axis platform 2, the Y-axis platform 3 and the rotating platform 4, the three-axis linkage platform is formed, the positioning is accurate, the modular design is adopted, the size is small, the three-axis linkage platform can be installed in a narrow space, and meanwhile, the voice coil motor is adopted as a motion module, so that the three-axis linkage platform has the characteristics of high frequency and high response.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. A voice coil motor three-axis linkage platform is characterized in that the three-axis linkage platform comprises a base, an X-axis platform, a Y-axis platform and a rotating platform which are arranged from bottom to top; the improved X-axis magnetic rotating platform is characterized in that a first coil winding is arranged in the base, an X-axis magnet and a second coil winding are arranged in the X-axis platform, the X-axis platform can be moved along the length direction of the base, a Y-axis magnet is arranged in the Y-axis platform, the Y-axis platform can be moved along the length direction of the X-axis platform, the rotating platform comprises a fixed magnet and a rotating seat located on the fixed magnet, the fixed magnet is connected with the Y-axis platform, and a third coil winding is arranged below the rotating seat.
2. The voice coil motor triaxial linkage platform of claim 1, wherein the fixed magnet comprises two centrally symmetrically arranged magnetic blocks, and the magnetic blocks are circular structures.
3. The voice coil motor triaxial linkage platform of claim 2, wherein the third coil winding is located between two magnetic blocks.
4. A voice coil motor tri-axial linkage platform according to claim 1, wherein the third coil winding is connected to the rotary base.
5. The voice coil motor triaxial linkage platform of claim 1, wherein the base and the X-axis platform are each provided with a guide assembly, and the guide assembly comprises a guide rail and a slider.
6. A voice coil motor tri-axial linkage platform according to claim 1, wherein the base is provided with a first coil joint, the X-axis platform is provided with a second coil joint, and the rotary base is provided with a third coil joint.
7. A voice coil motor triaxial linkage platform according to claim 1, wherein a cavity is provided in the center of the fixed magnet, a bearing is provided in the cavity, and the third coil winding is connected to the bearing.
8. A voice coil motor triaxial linkage platform according to claim 1, wherein a limit pin is disposed on the fixed magnet, and the limit pin corresponds to the third coil winding position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010236745.3A CN111313649A (en) | 2020-03-30 | 2020-03-30 | Voice coil motor three-axis linkage platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010236745.3A CN111313649A (en) | 2020-03-30 | 2020-03-30 | Voice coil motor three-axis linkage platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111313649A true CN111313649A (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010236745.3A Pending CN111313649A (en) | 2020-03-30 | 2020-03-30 | Voice coil motor three-axis linkage platform |
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| Country | Link |
|---|---|
| CN (1) | CN111313649A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117192707A (en) * | 2023-11-02 | 2023-12-08 | 季华实验室 | Optical fiber coupling device and automatic coupling control method of optical fiber coupling device |
-
2020
- 2020-03-30 CN CN202010236745.3A patent/CN111313649A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117192707A (en) * | 2023-11-02 | 2023-12-08 | 季华实验室 | Optical fiber coupling device and automatic coupling control method of optical fiber coupling device |
| CN117192707B (en) * | 2023-11-02 | 2024-02-23 | 季华实验室 | Optical fiber coupling device and automatic coupling control method of optical fiber coupling device |
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