CN201000769Y - Precision positioning flat base based on plane electric motor and ultra-magnetostriction driver - Google Patents

Precision positioning flat base based on plane electric motor and ultra-magnetostriction driver Download PDF

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Publication number
CN201000769Y
CN201000769Y CNU2007201054288U CN200720105428U CN201000769Y CN 201000769 Y CN201000769 Y CN 201000769Y CN U2007201054288 U CNU2007201054288 U CN U2007201054288U CN 200720105428 U CN200720105428 U CN 200720105428U CN 201000769 Y CN201000769 Y CN 201000769Y
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China
Prior art keywords
platform
super
magnetostrictive
drive
planar motor
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Expired - Fee Related
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CNU2007201054288U
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Chinese (zh)
Inventor
王文
李欣欣
陈子辰
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Zhejiang University ZJU
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Zhejiang University ZJU
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Priority to CNU2007201054288U priority Critical patent/CN201000769Y/en
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Abstract

The utility model discloses an accurate locating platform bottom seat based on a linear motor and a giant magnetostrictive actuator. The linear motor substructure is fixed on the bottom seat, the linear motor platform is suspended on the linear motor substructure, the micromotion platform substructure is fixed on the linear motor platform, a flexible hinge machined with the same material and the locating platform are fixed on the micromotion platform substructure, the output rod of the X direction and the Y direction giant magnetostrictive actuator are normal mutually and respectively smuggled up the X direction side and the Y direction side of the locating platform, and the substructures of the X direction and the Y direction giant magnetostrictive actuator are respectively fixed on the micromotion platform substructure. The utility model reaches the function of rapid movement in large range and high precision position adjustment in small range. The actuating force produced is strong and can be used in the situation with larger load. The platform motor adopts a suspension structure, and the locating platform of the giant magnetostrictive actuator is machined with the flexible hinge as a whole, which makes the whole structure far from the influence of the frictional force.

Description

A kind of precisely locating platform based on planar motor and super-magnetostrictive drive
Technical field
The utility model relates to locating device, especially relates to a kind ofly based on planar motor and super-magnetostrictive drive, can realize the precisely locating platform of grand/little two-stage drive.
Background technology
In fields such as large scale integrated circuit, micromechanics, spationautics, measuring science and technology, optics and electronic engineering, precision engineering, biochip manufacturing, nanometer science and technology, press for high-precision location technology on a large scale.In traditional high-accuracy position system, most grand/little two-stage feed system that adopts electric rotary machine to combine with piezoelectric ceramic actuator, promptly carry out the grand location of big stroke, carry out the fine positioning of micro-stroke with piezoelectric ceramic actuator with rotary stepped machine and ball screw arrangement.Adopt this structure, not only make complex structure, intermediate transmission mechanism is easily because driving error is introduced in the backlass of leading screw and friction, and adopts piezoelectric ceramic actuator to carry out that there is the operating voltage height in fine positioning, driving power is little, big deficiency lags behind.
Summary of the invention
In order to overcome the deficiency of existing big stroke precisely locating platform, the purpose of this utility model is to provide a kind of precisely locating platform based on planar motor and super-magnetostrictive drive, this precisely locating platform can not only be realized the precision positioning of big stroke, and can improve the driving force of locating platform greatly, can also avoid because the driving error that lead screw transmission friction force and backlass are produced.
The technical scheme that its technical matters that solves the utility model adopts is:
It comprises planar motor base, planar motor moving platform, micromotion platform base, X to super-magnetostrictive drive, Y to super-magnetostrictive drive, flexible hinge and locating platform; The planar motor base is fixed on the pedestal, the planar motor moving platform is suspended on the planar motor base, the micromotion platform base is fixed on the planar motor moving platform, the flexible hinge and the locating platform that process in same block of material one are fixed on the micromotion platform base, X to super-magnetostrictive drive and Y to the vertical mutually X that abuts against locating platform respectively of the take-off lever of super-magnetostrictive drive to side and Y to the side, X is fixed on the micromotion platform base with bearing respectively to super-magnetostrictive drive to super-magnetostrictive drive and Y.
Described flexible hinge and the locating platform that processes in same block of material one, flexible hinge is the right angle hinge, and on two sides of X, Y of locating platform, process half slot respectively, X is placed on the half slot to the take-off lever of super-magnetostrictive drive to super-magnetostrictive drive and Y, is convenient to abut against on the corresponding side of locating platform.
Described X is identical to the super-magnetostrictive drive structure with Y to super-magnetostrictive drive, includes end cap, housing, giant magnetostrictive material, take-off lever, nut, pre-compressed spring, drive coil and wire-core coil skeleton; Giant magnetostrictive material places the air core coil skeleton, drive coil is outside the air core coil skeleton, and be installed in the housing, one end of giant magnetostrictive material is held out against by the end cap that is fixed on housing, the other end of giant magnetostrictive material is held out against by an end face of take-off lever, the other end of take-off lever stretches in the pre-compressed spring, and tightening nuts is fixed on take-off lever in the housing by pre-compressed spring.
The beneficial effect that the utlity model has is: can realize fast moving on a large scale, realize the adjustment of high-precision position among a small circle; The driving force that produces is big, can be used for having the occasion than heavy load; Because what planar motor adopted is magnetic suspension structure, what the ultra-magnetic telescopic microdrive drove is and the locating platform of flexible hinge one processing to make total avoid the influence of friction force; Planar motor realizes that the maximal rate of grand motion can reach 500mm/s, and repetitive positioning accuracy is 6 μ m; The ultra-magnetic telescopic microdrive realizes that the maximum driving force of micromotion is 400N, and the maximum elongation amount is 8 μ m, and repetitive positioning accuracy reaches 40nm.
Description of drawings
Fig. 1 is an one-piece construction principle schematic of the present utility model.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is the structure principle chart of flexible hinge and locating platform.
Fig. 4 is that the A of Fig. 3 is to view.
Fig. 5 is the I-I enlarged drawing of Fig. 3.
Fig. 6 is the structure principle chart of super-magnetostrictive drive.
Among the figure: 1. planar motor base, 2. planar motor moving platform, 3. micromotion platform base, 4.X to super-magnetostrictive drive, 5. bearing, 5 '. No. two bearings; 5 ". No. three bearings, 6.Y are to super-magnetostrictive drive, 7. No. four bearings, 7 '. No. five bearings; 7 ". No. six bearings, 8. flexible hinge, 9. locating platform, 10. trough with straight angle, 10 '. trough with straight angle, 11. end caps, 12. housings, 13. giant magnetostrictive material, 14. take-off lever, 15. nuts, 16. pre-compressed springs, 17. drive coil, 18. air core coil skeletons.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the utility model comprise planar motor base 1, planar motor moving platform 2, micromotion platform base 3, X to super-magnetostrictive drive 4, Y to super-magnetostrictive drive 6, flexible hinge 8 and locating platform 9; Planar motor base 1 is fixed on the pedestal, planar motor moving platform 2 is suspended on the planar motor base 1, micromotion platform base 3 is fixed on the planar motor moving platform 2, the flexible hinge 8 that processes in same block of material one adopts register pin and screw retention on micromotion platform base 3 with locating platform 9, X to super-magnetostrictive drive 4 and Y to the vertical mutually X that abuts against locating platform 9 respectively of the take-off lever of super-magnetostrictive drive 6 to side and Y to the side, X adopts a bearing 5 to super-magnetostrictive drive 4, No. two bearings 5 ', No. three bearings 5 " be fixed on the micromotion platform base 3, Y adopts No. four bearings 7 to super-magnetostrictive drive 6; No. five bearings 7 '; No. six bearings 7 " be fixed on the micromotion platform base 3.
As Fig. 3, shown in Figure 5, the described flexible hinge 8 and locating platform 9 that processes in same block of material one, by cutting right angle recessed hinge 10,10 ', on four angles of locating platform 9, process the flexible hinge 8 that can on X, Y direction, produce micro-displacement, on two sides of X, Y of locating platform 9, process half slot respectively, X is placed on the half slot to the take-off lever of super-magnetostrictive drive 6 with Y to super-magnetostrictive drive 4, is convenient to abut against on the locating platform 9 corresponding sides.When X during to super-magnetostrictive drive 6 elongations, drives locating platforms 9 by flexible hinge 8 and realizes micro-displacements with Y to super-magnetostrictive drive 4.
As shown in Figure 6, described X is identical to super-magnetostrictive drive 6 structures with Y to super-magnetostrictive drive 4, includes end cap 11, housing 12, giant magnetostrictive material 13, take-off lever 14, nut 15, pre-compressed spring 16, drive coil 17 and wire-core coil skeleton 18; Giant magnetostrictive material 13 places air core coil skeleton 18, drive coil 17 is outside air core coil skeleton 18, and be installed in the housing 12, one end of giant magnetostrictive material 13 is held out against by the end cap 11 that is fixed on housing 12, the other end of giant magnetostrictive material 13 is held out against by an end face of take-off lever 14, the other end of take-off lever 14 stretches in the pre-compressed spring 16, and tightening nuts 15 is fixed on take-off lever 14 in the housing 12 by pre-compressed spring 16.
Principle of work of the present utility model is as follows:
The micromotion platform that ultra-magnetic telescopic microdrive, flexibility hinge and locating platform are installed is fixed on the moving platform of planar motor; The grand motion of big stroke adopts planar motor to realize, micromotion adopts the ultra-magnetic telescopic microdrive to realize; When the grand motion that planar motor produces is gone forward side by side in the travel incognito journey scope of ultra-magnetic telescopic microdrive fast near the precalculated position after, promote flexible hinge by the ultra-magnetic telescopic microdrive, realize the micromotion of locating platform by the microdeformation of flexible hinge, and finally arrive the precalculated position.
The grand motion of big stroke adopts planar motor to carry out large-scale motion positions, slows down near the precalculated position time, and will keep stationary state after in entering the travel incognito journey scope of ultra-magnetic telescopic microdrive, is convenient to carry out the precision positioning of micromotion.
In the micromotion of micro-stroke, nut 15, pre-compressed spring 16 guarantee that giant magnetostrictive material 13 is operated under the state of pressurized, end cap 11, housing 12 are used for fixing air core coil skeleton 18 and giant magnetostrictive material 13, and with the common magnetic loops that form of giant magnetostrictive material 13, input stimulus electric current from drive coil 17 (bias current has superposeed), the magnetic field that produces elongates or shortens giant magnetostrictive material 13, promote flexible hinge 8, make flexible hinge 8 that microdeformation take place, realize locating platform 9 friction free micro-stroke precision positionings.

Claims (3)

1. precisely locating platform based on planar motor and super-magnetostrictive drive is characterized in that: it comprise planar motor base (1), planar motor moving platform (2), micromotion platform base (3), X to super-magnetostrictive drive (4), Y to super-magnetostrictive drive (6), flexible hinge (8) and locating platform (9); Planar motor base (1) is fixed on the pedestal, planar motor moving platform (2) is suspended on the planar motor base (1), micromotion platform base (3) is fixed on the planar motor moving platform (2), be fixed on the micromotion platform base (3) with locating platform (9) at the flexible hinge (8) that same block of material one processes, X to super-magnetostrictive drive (4) and Y to the vertical mutually X that abuts against locating platform (9) respectively of the take-off lever of super-magnetostrictive drive (6) to side and Y to the side, X is fixed on bearing on the micromotion platform base (3) respectively to super-magnetostrictive drive (6) with Y to super-magnetostrictive drive (4).
2. a kind of precisely locating platform according to claim 1 based on planar motor and super-magnetostrictive drive, it is characterized in that: the described flexible hinge (8) and locating platform (9) that processes in same block of material one, flexible hinge (8) is the right angle hinge, and on two sides of X, Y of locating platform (9), process half slot respectively, X is placed on the half slot to the take-off lever of super-magnetostrictive drive (6) with Y to super-magnetostrictive drive (4), is convenient to abut against on the corresponding side of locating platform (9).
3. a kind of precisely locating platform according to claim 1 based on planar motor and super-magnetostrictive drive, it is characterized in that: described X is identical to super-magnetostrictive drive (6) structure with Y to super-magnetostrictive drive (4), includes end cap (11), housing (12), giant magnetostrictive material (13), take-off lever (14), nut (15), pre-compressed spring (16), drive coil (17) and wire-core coil skeleton (18); Giant magnetostrictive material (13) places air core coil skeleton (18), drive coil (17) is outside air core coil skeleton (18), and be installed in the housing (12), one end of giant magnetostrictive material (13) is held out against by the end cap that is fixed on housing (12) (11), the other end of giant magnetostrictive material (13) is held out against by an end face of take-off lever (14), the other end of take-off lever (14) stretches in the pre-compressed spring (16), tightening nuts (15) is fixed on take-off lever (14) in the housing (12) by pre-compressed spring (16).
CNU2007201054288U 2007-01-09 2007-01-09 Precision positioning flat base based on plane electric motor and ultra-magnetostriction driver Expired - Fee Related CN201000769Y (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102029408A (en) * 2010-10-27 2011-04-27 东南大学 Rare-earth ultra-magnetostrictive actuator-based two-dimensional micro-feeding cutter frame
CN103035160A (en) * 2012-12-11 2013-04-10 浙江大学 High-frequency braking testing device and method thereof
CN104993735A (en) * 2015-07-21 2015-10-21 安徽理工大学 Two-degree-of-freedom precision micro positioning system and two-degree-of-freedom precision micro positioning method for giant magnetostrictive actuation
CN107492398A (en) * 2017-09-12 2017-12-19 苏州迈客荣自动化技术有限公司 A kind of one-dimensional micro-displacement platform

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102029408A (en) * 2010-10-27 2011-04-27 东南大学 Rare-earth ultra-magnetostrictive actuator-based two-dimensional micro-feeding cutter frame
CN103035160A (en) * 2012-12-11 2013-04-10 浙江大学 High-frequency braking testing device and method thereof
CN104993735A (en) * 2015-07-21 2015-10-21 安徽理工大学 Two-degree-of-freedom precision micro positioning system and two-degree-of-freedom precision micro positioning method for giant magnetostrictive actuation
CN104993735B (en) * 2015-07-21 2017-04-12 安徽理工大学 Two-degree-of-freedom precision micro positioning system and two-degree-of-freedom precision micro positioning method for giant magnetostrictive actuation
CN107492398A (en) * 2017-09-12 2017-12-19 苏州迈客荣自动化技术有限公司 A kind of one-dimensional micro-displacement platform

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Granted publication date: 20080102