CN205263395U - Synchronous linear electric motor driven automatic control microscope cargo platform of permanent magnetism - Google Patents
Synchronous linear electric motor driven automatic control microscope cargo platform of permanent magnetism Download PDFInfo
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- CN205263395U CN205263395U CN201521033851.2U CN201521033851U CN205263395U CN 205263395 U CN205263395 U CN 205263395U CN 201521033851 U CN201521033851 U CN 201521033851U CN 205263395 U CN205263395 U CN 205263395U
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Abstract
The utility model provides a synchronous linear electric motor driven automatic control microscope cargo platform of permanent magnetism, relates to cargo platform. Including objective table, the synchronous linear electric motor of permanent magnetism, feedback device and control circuit, the objective table is equipped with top shoe, intermediate lamella and bottom plate from top to bottom in proper order, the sliding fit who constitutes along Y axle direction is connected with the intermediate lamella through last guide rail to the top shoe, and the sliding fit who constitutes along X axle direction is connected with the bottom plate to the intermediate lamella, on the synchronous linear electric motor's of first permanent magnetism stator was fixed in the intermediate lamella, the synchronous linear electric motor's of first permanent magnetism active cell was connected with the top shoe, on the synchronous linear electric motor's of second permanent magnetism stator was fixed in the bottom plate, the synchronous linear electric motor's of second permanent magnetism active cell was connected with the intermediate lamella, feedback device is equipped with the encoder, and on the first coding ware was fixed in the intermediate lamella, on the second encoder was fixed in the bottom plate, control circuit included microprocessor, and the position detected signal of encoder transmits to microprocessor signal input part, and the microprocessor control signal is transmitted respectively to the synchronous linear electric motor of permanent magnetism.
Description
Technical field
The utility model relates to a kind of for placing the article carrying platform that is observed thing, especially relates to a kind of permanent magnetic linear synchronous motorThe automatic control microscope article carrying platform driving.
Background technology
Along with the raising of scientific and technological level, microscope is more and more automatic and intelligent, and the automatic demand for control of objective table is also progressively carriedHigh; The microscope carrier that tradition adopts servomotor or stepper motor (needs screw mandrel, spiral shell because of the reason of structure and type of driveFemale etc.) can produce more serious hysterisis error, reduce accuracy of observation, affect result of use.
Summary of the invention
The purpose of this utility model is to provide a kind of precision and is obviously better than traditional stepper motor, directly driving objective table motion, withoutUnnecessary frame for movement, poor without backhaul, the automatic control that the employing permanent magnetic linear synchronous motor that speed stability significantly improves drivesMicroscope article carrying platform.
The utility model comprise objective table, the first permanent magnetic linear synchronous motor, the second permanent magnetic linear synchronous motor, feedback device andControl circuit;
Described objective table is provided with top shoe, intermediate plate and base plate from top to bottom successively; Top shoe surface is as loading plane, upper cunningPiece and intermediate plate connect and compose along being slidably matched of Y direction by upper rail, and intermediate plate and base plate connect and compose by lower guidewayAlong being slidably matched of X-direction; The stator of the first permanent magnetic linear synchronous motor is fixed on intermediate plate, the first permanent synchronous linearThe mover of motor is connected with top shoe; The stator of the second permanent magnetic linear synchronous motor is fixed on base plate, the second permanent synchronous linearThe mover of motor is connected with intermediate plate; Feedback device is provided with the first encoder, the second encoder, in the middle of the first encoder is fixed onOn plate, the second encoder is fixed on base plate, and control circuit comprises microprocessor, the position of the first encoder and the second encoderDetection signal is passed to microprocessor signals input, and microprocessor control signal is passed to respectively the first permanent magnetic linear synchronous motorWith the second permanent magnetic linear synchronous motor.
Described microprocessor can adopt the embedded controllers such as digital signal processor (DSP) or single-chip microcomputer.
Compared with the prior art, the utility model beneficial effect is as follows:
Permanent magnetic linear synchronous motor can directly drive platform to carry out rectilinear motion, do not need screw mandrel and nut, has avoided machineryHysterisis error, the maintenance work of saving mechanical part, ensure higher kinematic accuracy, reduced product working service cost simultaneously.Linear electric motors, than stepper motor, have more superior exercise performance, and platform speed stability is high, and steadily, speed is moving in motionState scope is large, can in hundreds of millimeters of velocity intervals per second, move from micron is per second. Feedback device comprises encoder and photoelectricity limitPosition device: encoder detects the relative position of objective table, because the precision of encoder is higher, can improve position control accuracy is heavyMultiple positioning precision is better than 1 μ m, and highest resolution can reach 0.005 μ m; Use photoelectric position limit device monitoring X-axis and Y-axis two ends,If objective table arrives two ends, stop motion. For further improving security of system, also can add again in X-axis and Y directionMechanical position limitation part and software limit function, form 3 layers of position limitation protection.
When the utility model microscope carrier system works, host computer sends movement instruction, delivers to control circuit. Control circuitThrough computing, generate control signal. Control signal, through power amplification, drives the switching tube of main circuit, to permanent synchronous linearMotor carries out vector controlled, and platform carries out X-axis and Y-axis motion thereupon. In motion process, encoder detects the position of objective table,Position signalling is fed back to control circuit, and control circuit, according to position feed back signal Correction and Control signal, forms closed-loop control, carriesThe control accuracy of high system.
As can be seen here, the utility model is by changing drive motors on driving objective table, replaces stepping with permanent magnetic linear synchronous motorMotor, drives platform to carry out X-axis and Y-axis motion, coordinates guide rail and encoder position to detect the high accuracy control of implementation platform.
Obviously, the utlity model has following advantage:
1. permanent magnetic linear synchronous motor control accuracy is better than traditional stepper motor;
2. the direct driving objective table motion of permanent magnetic linear synchronous motor, without unnecessary frame for movement, poor without backhaul;
3. permanent magnetic linear synchronous motor has more superior exercise performance, and platform speed stability is high, and motion steadily;
4. the speed adjustable range of permanent magnetic linear synchronous motor is wide, and objective table speed can reach 1um/s to 500mm/s.
5. between motion structure, rub little, system maintenance cost, life.
6. permanent magnetic linear synchronous motor power density is large, under same volume restriction, can export more high thrust;
7. ultra-thin design can be by platform and integrally THICKNESS CONTROL at 30mm.
Brief description of the drawings
Fig. 1 is the decomposition texture schematic diagram of the utility model embodiment.
Fig. 2 is the assembly structure schematic diagram of the utility model embodiment.
Detailed description of the invention
Referring to Fig. 1 and 2, the utility model comprises objective table, the first permanent magnetic linear synchronous motor 2, the second permanent synchronous linear electricityMachine 3, feedback device and control circuit.
Described objective table is provided with top shoe 11, intermediate plate 12 and base plate 13 from top to bottom successively. Top shoe 11 surfaces are as loadingPlane, top shoe 11 and intermediate plate 12 connect and compose along being slidably matched of Y direction by upper rail 14, intermediate plate 12 withBase plate 13 connects and composes being slidably matched along X-direction by lower guideway 15; The stator of the first permanent magnetic linear synchronous motor 2 is solidOn intermediate plate 12, the mover of the first permanent magnetic linear synchronous motor 2 is connected with top shoe 11. The second permanent synchronous linear electricityThe stator of machine 3 is fixed on base plate 13, and the mover of the second permanent magnetic linear synchronous motor 3 is connected with intermediate plate 12. Feedback deviceBe provided with the first encoder 41 and the second encoder 42, the first encoders 41 are fixed on intermediate plate 12, the second encoder 42 is solidOn base plate 13. Control circuit comprises microprocessor. The position detection signal of the first encoder 41 and the second encoder 42 passesBe handed to microprocessor signals input, microprocessor control signal is passed to respectively the first permanent magnetic linear synchronous motor 2 and second foreverMagnetic-synchro linear electric motors 3.
Described microprocessor adopts digital signal processor (DSP) (also can be the embedded controllers such as single-chip microcomputer).
Claims (2)
- Permanent magnetic linear synchronous motor drive an automatic control microscope article carrying platform, it is characterized in that, comprise objective table,The first permanent magnetic linear synchronous motor, the second permanent magnetic linear synchronous motor, feedback device and control circuit;Described objective table is provided with top shoe, intermediate plate and base plate from top to bottom successively; Top shoe surface is as loading plane, upper cunningPiece and intermediate plate connect and compose along being slidably matched of Y direction by upper rail, and intermediate plate and base plate connect and compose by lower guidewayAlong being slidably matched of X-direction; The stator of the first permanent magnetic linear synchronous motor is fixed on intermediate plate, the first permanent synchronous linearThe mover of motor is connected with top shoe; The stator of the second permanent magnetic linear synchronous motor is fixed on base plate, the second permanent synchronous linearThe mover of motor is connected with intermediate plate; Feedback device is provided with the first encoder, the second encoder, in the middle of the first encoder is fixed onOn plate, the second encoder is fixed on base plate, and control circuit comprises microprocessor, the position of the first encoder and the second encoderDetection signal is passed to microprocessor signals input, and microprocessor control signal is passed to respectively the first permanent magnetic linear synchronous motorWith the second permanent magnetic linear synchronous motor.
- 2. the automatic control microscope article carrying platform that a kind of permanent magnetic linear synchronous motor drives as claimed in claim 1, its feature existsIn, described microprocessor adopts digital signal processor or single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521033851.2U CN205263395U (en) | 2015-12-11 | 2015-12-11 | Synchronous linear electric motor driven automatic control microscope cargo platform of permanent magnetism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521033851.2U CN205263395U (en) | 2015-12-11 | 2015-12-11 | Synchronous linear electric motor driven automatic control microscope cargo platform of permanent magnetism |
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| Publication Number | Publication Date |
|---|---|
| CN205263395U true CN205263395U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521033851.2U Active CN205263395U (en) | 2015-12-11 | 2015-12-11 | Synchronous linear electric motor driven automatic control microscope cargo platform of permanent magnetism |
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| CN (1) | CN205263395U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334610A (en) * | 2015-12-11 | 2016-02-17 | 海德星科技（厦门）有限公司 | Automatic control microscope objective platform driven by permanent magnet synchronous linear motors |
-
2015
- 2015-12-11 CN CN201521033851.2U patent/CN205263395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334610A (en) * | 2015-12-11 | 2016-02-17 | 海德星科技（厦门）有限公司 | Automatic control microscope objective platform driven by permanent magnet synchronous linear motors |
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| GR01 | Patent grant |