CN104950430A - Microscope focusing device based on ultrasonic motor drive - Google Patents

Microscope focusing device based on ultrasonic motor drive Download PDF

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Publication number
CN104950430A
CN104950430A CN201510379957.6A CN201510379957A CN104950430A CN 104950430 A CN104950430 A CN 104950430A CN 201510379957 A CN201510379957 A CN 201510379957A CN 104950430 A CN104950430 A CN 104950430A
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China
Prior art keywords
electric machine
dou
ultrasound electric
mandrel
focusing
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CN201510379957.6A
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Chinese (zh)
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CN104950430B (en
Inventor
苏勋涛
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JIANGSU GLITTERING ORIENT ULTRASONIC MOTOR Co Ltd
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JIANGSU GLITTERING ORIENT ULTRASONIC MOTOR Co Ltd
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Abstract

The invention discloses a microscope focusing device based on ultrasonic motor drive. An ultrasonic motor, bevel gears and bevel racks cooperate with one another to electrically control a support plate to move up and down, and the structure is very simple. During usage, the support plate can be controlled to move on any scale under the drive of the ultrasonic motor, so that the clearest focal length can be found out easily. The ultrasonic motor has no inertia during reciprocating, meanwhile, one adjusting mechanism is arranged between one bevel gear and the ultrasonic motor, one adjusting mechanism is arranged between the other bevel gear and an encoder, the bevel gears and the bevel racks can be always meshed closely by the aid of the adjusting mechanisms, and mechanical errors of a traditional structure are avoided when the support plate is controlled to move up and down. The ultrasonic motor, the bevel gears and the bevel racks cooperate with one another, the kinematic accuracy of the support plate is up to plus/minus 2 mu m through experiments, and the focusing accuracy of the focusing device is much higher than that of a traditional focusing structure.

Description

A kind of focusing of microscope device based on Driven by Ultrasonic Motors
Technical field
The present invention relates to a kind of electromotion focusing device, be specifically related to a kind of electromotion focusing device directly driven with ultrasound electric machine.
Background technology
Traditional microscope in use, when the focal length needing adjustment object lens to testee, is mainly realized by focalizer.The supporting plate that recliner moves up and down primarily of relative holder and focusing knob are formed, and drive supporting plate motion, and microscopical opticator are arranged on supporting plate by rotating instruction knob.Traditional microscope also needs manual focusing, and observes its sharpness by eyes, rotates in the process of focusing knob, often will move back and forth clockwise and counterclockwise, is difficult to the amplitude controlling adjustment, is not easy to find focal length the most clearly; There is machine error when regulating back and forth simultaneously.And the enlargement factor of electron microscope and control all very high, but its complex structure and involving great expense, many common experiments do not need the microscope using this rank.
Summary of the invention
Goal of the invention: for above-mentioned prior art, proposes a kind of focusing of microscope device based on Driven by Ultrasonic Motors, improves the focusing accuracy of conventional microscope.
Summary of the invention: a kind of focusing of microscope device based on Driven by Ultrasonic Motors, is characterized in that: comprise holder, supporting plate, ultrasound electric machine, scrambler, ultrasound electric machine controller; Described supporting plate to be arranged in parallel two Dou tooth bars along supporting plate direction of motion, and described ultrasound electric machine and scrambler are separately positioned on the both sides of described holder, and the collection signal of scrambler outputs to ultrasound electric machine controller; The mandrel of described ultrasound electric machine is positioned at the top of described supporting plate and vertical described Dou tooth bar, and described scrambler is fixed on mandrel one end of ultrasound electric machine, described mandrel is also fixed two Dou gears, and all described with one the Dou tooth bar of each Dou gear engages; Between a Dou gear and ultrasound electric machine, another Dou gear and scrambler be equipped with a governor motion, described governor motion comprises and is enclosed within annulus on mandrel and disc spring, described annulus is fixed on mandrel, the internal diameter of described disc spring is greater than the diameter of mandrel, one end of disc spring contacts with Dou gear face, and the other end of disc spring contacts with annulus.
As preferred version of the present invention, the shell that described ultrasound electric machine comprises stator, rotor, mandrel, base and is connected with base, described stator is arranged on base, and stator lower surface is pasted with piezoelectric ceramics, and the lead-in wire of piezoelectric ceramics is drawn by gap reserved between shell and base; Described rotor is arranged on mandrel, and rotor upper end is pasted with damping material, and rotor lower surface is pasted with friction material layer and and stator contact.
Beneficial effect: a kind of focusing of microscope device based on Driven by Ultrasonic Motors of the present invention, achieve by the cooperating of ultrasound electric machine, Dou gear, Dou tooth bar the Electronic control that supporting plate moves up and down, structure is very simple.In use, ultrasound electric machine utilizes the inverse piezoelectric effect of piezoelectric ceramics, makes stator produce vibration in supersonic range, motion and moment of torsion is obtained by the friction between stator, rotor, by the driving of ultrasound electric machine, the supporting plate motion of any yardstick can be controlled, thus easily find focal length the most clearly; The ultrasound electric machine power-off time selected is 3 milliseconds, and start-up time is 6 milliseconds, thus the regulation and control of user can be responded fast.Ultrasound electric machine does not have inertia when to-and-fro movement, simultaneously between a Dou gear and ultrasound electric machine, another Dou gear and scrambler be equipped with a governor motion, Dou gear and Dou tooth bar can be allowed all the time closely to engage by this adjustment structure, when controlling supporting plate and moving back and forth up and down, avoid the machine error of traditional structure; Utilizing the coordinated scheme of ultrasound electric machine, Dou gear, Dou tooth bar, the kinematic accuracy obtaining supporting plate by experiment can reach ± and 2 μm, compare traditional focusing structure, substantially increase its focusing accuracy.
In addition, in electromotion focusing device structure of the present invention, utilize the mandrel of ultrasound electric machine directly to connect Dou gear, eliminate the mechanisms such as transmission gear, thus avoid the machine error that may exist, ensure that its focusing accuracy.By ultrasound electric machine Direct driver focalizer, utilize the characteristic that cuts off self-lock of ultrasound electric machine, thus eliminate the locking device of traditional focalizer, simplify the structure.
Accompanying drawing explanation
Fig. 1 is focusing of microscope device structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention done and further explain.
As shown in Figure 1, a kind of focusing of microscope device based on Driven by Ultrasonic Motors, comprises holder 1, supporting plate 2, ultrasound electric machine 3, scrambler 4.Be provided with spherical guide between supporting plate 2 and holder 1, supporting plate 2 has the gradient of level along supporting plate direction of motion two Dou tooth bar 5, the Dou tooth bars 5 that be arranged in parallel.Ultrasound electric machine 3 and scrambler 4 are separately positioned on the both sides of described holder 1, and the mandrel 6 of ultrasound electric machine 3 is positioned at the top of supporting plate 2 and vertical described Dou tooth bar 5, and scrambler 4 is fixed on mandrel 6 one end of ultrasound electric machine 3.Mandrel 6 is also fixed two Dou gear 7, Dou gears 7 and also have horizontal gradient, each Dou gear all engages with a Dou tooth bar; In order to make both adaptive, Dou gear should be consistent with Dou tooth bar horizontal gradient, and its modulus and pressure angle also should be consistent.Between a Dou gear 7 and ultrasound electric machine 3, another Dou gear 7 is equipped with a governor motion 8 with scrambler 4, governor motion 8 comprises and is enclosed within annulus 81 on mandrel 6 and disc spring 82, annulus 81 is fixed on mandrel 6, the internal diameter of disc spring 82 is greater than the diameter of mandrel 6, one end of disc spring 82 and Dou gear 7 end contact, the other end of disc spring 82 contacts with annulus 81.
The shell 34 that ultrasound electric machine 3 comprises stator 31, rotor 32, mandrel 6, base 33 and is connected with base 33.Stator 31 is arranged on base 33, and stator 31 lower surface is pasted with piezoelectric ceramics 35, and the lead-in wire of piezoelectric ceramics 35 is drawn by gap reserved between shell 34 and base 33.Rotor 32 is arranged on mandrel 6, and rotor 32 upper end is pasted with damping material 36, and rotor 32 lower surface is pasted with friction material layer 37 and contacts with stator 31.Ultrasound electric machine connects ultrasound electric machine controller, and ultrasound electric machine controller comprises upper and lower control knob and supports the input of concrete focusing value; The signal output part of scrambler connects ultrasound electric machine controller.Select power-off time to be 3 milliseconds, start-up time is the ultrasound electric machine of 6 milliseconds, and scrambler 4 comprises reads dish 41 and read head 42.
During use, user can directly control moving up and down of ultrasound electric machine by the control knob up and down on ultrasound electric machine controller.Scrambler gathers the angle that ultrasound electric machine mandrel rotates, and collection value is fed back in the controller of ultrasound electric machine the closed-loop control formed ultrasound electric machine, heightens control accuracy.User by inputting focusing value on ultrasound electric machine controller, with the movement travel of this fixing quantity supporting plate, thus easily can also find focal length the most clearly.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (2)

1. based on a focusing of microscope device for Driven by Ultrasonic Motors, it is characterized in that: comprise holder (1), supporting plate (2), ultrasound electric machine (3), scrambler (4), ultrasound electric machine controller; Described supporting plate (2) to be arranged in parallel two Dou tooth bars (5) along supporting plate direction of motion, described ultrasound electric machine (3) and scrambler (4) are separately positioned on the both sides of described holder (1), and the collection signal of scrambler (4) outputs to ultrasound electric machine controller; The mandrel (6) of described ultrasound electric machine (3) is positioned at the top of described supporting plate (2) and vertical described Dou tooth bar (5), described scrambler (4) is fixed on mandrel (6) one end of ultrasound electric machine (3), described mandrel (6) is also fixed two Dou gears (7), all described with one the Dou tooth bar of each Dou gear engages; Between a Dou gear (7) and ultrasound electric machine (3), another Dou gear (7) and scrambler (4) be equipped with a governor motion (8), described governor motion (8) comprises and is enclosed within annulus (81) on mandrel (6) and disc spring (82), described annulus (81) is fixed on mandrel (6), the internal diameter of described disc spring (82) is greater than the diameter of mandrel (6), one end of disc spring (82) and Dou gear (7) end contact, the other end of disc spring (82) contacts with annulus (81).
2. a kind of focusing of microscope device based on Driven by Ultrasonic Motors according to claim 1, it is characterized in that: the shell (34) that described ultrasound electric machine (3) comprises stator (31), rotor (32), mandrel (6), base (33) and is connected with base (33), described stator (31) is arranged on base (33), stator (31) lower surface is pasted with piezoelectric ceramics (35), and the lead-in wire of piezoelectric ceramics (35) is drawn by gap reserved between shell (34) and base (33); Described rotor (32) is arranged on mandrel (6), rotor (32) upper end is pasted with damping material (36), and rotor (32) lower surface is pasted with friction material layer (37) and contacts with stator (31).
CN201510379957.6A 2015-07-01 2015-07-01 A kind of focusing of microscope device based on Driven by Ultrasonic Motors Active CN104950430B (en)

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CN201510379957.6A CN104950430B (en) 2015-07-01 2015-07-01 A kind of focusing of microscope device based on Driven by Ultrasonic Motors

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2152219Y (en) * 1993-01-15 1994-01-05 胡修鸿 Microscope for student practice
US5703715A (en) * 1995-08-16 1997-12-30 Leica Mikroskopie Und Systeme Gmbh Device for stabilizing the focus of a microscope
CN201788313U (en) * 2010-06-18 2011-04-06 南京春朝电子科技有限公司 Electric microscope
CN203439977U (en) * 2013-08-12 2014-02-19 日照旭龙光电科技有限公司 Winding type lifting device capable of four-point synchronous horizontal and vertical lifting
CN103775611A (en) * 2012-10-18 2014-05-07 天津市七星精密机械有限公司 Backlash-free gear transmission pair
CN204206023U (en) * 2014-10-14 2015-03-11 苏勋涛 A kind of electric cylinder based on Driven by Ultrasonic Motors

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2152219Y (en) * 1993-01-15 1994-01-05 胡修鸿 Microscope for student practice
US5703715A (en) * 1995-08-16 1997-12-30 Leica Mikroskopie Und Systeme Gmbh Device for stabilizing the focus of a microscope
CN201788313U (en) * 2010-06-18 2011-04-06 南京春朝电子科技有限公司 Electric microscope
CN103775611A (en) * 2012-10-18 2014-05-07 天津市七星精密机械有限公司 Backlash-free gear transmission pair
CN203439977U (en) * 2013-08-12 2014-02-19 日照旭龙光电科技有限公司 Winding type lifting device capable of four-point synchronous horizontal and vertical lifting
CN204206023U (en) * 2014-10-14 2015-03-11 苏勋涛 A kind of electric cylinder based on Driven by Ultrasonic Motors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈炳光: "《模具数控加工及编程技术》", 31 December 2011 *

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