CN206710694U - Electronmicroscopic level focus control - Google Patents
Electronmicroscopic level focus control Download PDFInfo
- Publication number
- CN206710694U CN206710694U CN201720403255.1U CN201720403255U CN206710694U CN 206710694 U CN206710694 U CN 206710694U CN 201720403255 U CN201720403255 U CN 201720403255U CN 206710694 U CN206710694 U CN 206710694U
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- CN
- China
- Prior art keywords
- gripping platform
- base plate
- microscope
- focus control
- horizonal base
- Prior art date
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Abstract
The utility model discloses a kind of electronmicroscopic level focus control, including microscope Gripping platform, the microscope Gripping platform passes through at least left, right two line slideways are installed on horizonal base plate, the horizonal base plate is provided with the elastic spacing mechanism for acting on microscope Gripping platform front end, before the bottom plate of microscope Gripping platform rear end is provided with it is adjusted, the screw nut driving pair of amount of movement afterwards, the secondary nut of the screw nut driving is installed on microscope Gripping platform, the secondary screw mandrel of screw nut driving is arranged on horizonal base plate and by the gear driving pair connection focusing stepper motor with least primary speed-down gearratio by bearing seat supports.The utility model improves stability, make mechanism experience Transport Vibration or other readjusted compared with high vibration after can normal use, fit precision can also be kept after vital part abrasion in structure, improve service life, it is easy to maintenance with modular assembly and disassembling function.
Description
Technical field
Optical imagery governor motion is the utility model is related to, specially a kind of electronmicroscopic level for Medical Devices is focused
Device.
Background technology
The extensive use of focusing of microscope device, generally vertically move microscope and focused, but in Medical Devices
Some optical systems in need to move horizontally microscope and carry out accurate focusing.
Focusing of microscope device mainly has timing belt to coordinate the structure of screw mandrel, pinion and rack, lead screw motor structure etc.
Kinds of schemes.
The shortcomings that prior art：
1st, less stable, especially when undergo Transport Vibration or other can not be automatically replied compared with after high vibration.
2nd, due to the abrasion of screw rod and nut, precise decreasing is caused, the service life of structure is relatively low.
Utility model content
In view of the shortcomings of the prior art, technical problem to be solved in the utility model be propose a kind of stability it is high,
The electronmicroscopic level focus control of service life length.
The electronmicroscopic level focus control of above-mentioned technical problem is can solve the problem that, it is flat that its technical scheme includes microscope clamping
Platform, except that the microscope Gripping platform is installed on horizonal base plate by least left and right two line slideways, it is described
Horizonal base plate is provided with the elastic spacing mechanism for acting on microscope Gripping platform front end, the bottom plate of microscope Gripping platform rear end
The screw nut driving pair for adjusting its forward and backward amount of movement is provided with, the secondary nut of the screw nut driving is installed on microscope
On Gripping platform, the secondary screw mandrel of screw nut driving is arranged on horizonal base plate and by with least one-level by bearing seat supports
The gear driving pair connection focusing stepper motor of step-down ratio.
A kind of structure of the gear driving pair includes the driver pinion being meshed and driven gear wheel, the active are small
Gear is installed on the output shaft of focusing stepper motor, and the driven gear wheel is installed on screw mandrel, the focusing stepper motor
On be equipped with the handle of manual focusing.
To reduce the abrasion of screw mandrel and nut, ensure the accuracy of mesh between screw mandrel and feed screw nut, improve service life,
The screw mandrel is made using high-abrasive material, and the nut is made using self-lubricating material.
To improve the rigidity and linearity of screw mandrel, the screw mandrel is by a pair of angular contact ball bearing branch being set in bearing block
Support.
For microscope Gripping platform is fixed, ensure structure be not damaged by transportation and do not damage other zero
Part, the horizonal base plate are provided with the latch segment for the microscope Gripping platform that is fixedly clamped.
A kind of structure of the elastic spacing mechanism includes the positive stop being fixedly arranged on horizonal base plate, the positive stop
Extrude and have elastic component between microscope Gripping platform.
The beneficial effects of the utility model：
The utility model electronmicroscopic level focus control uses modular assembly and dismounting, easy to maintenance.
The utility model improves stability, makes mechanism in experience Transport Vibration or after other readjust compared with high vibration
Can normal use.
Fit precision can also be kept after vital part abrasion in the utility model structure, improves service life.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the utility model.
Fig. 2 is the top view of Fig. 1 embodiments.
Figure number identifies：1st, horizonal base plate；2nd, microscope Gripping platform；3rd, line slideway；4th, positive stop；5th, nut；6、
Screw mandrel；7th, bearing block；8th, angular contact ball bearing；9th, focusing stepper motor；10th, driver pinion；11st, driven gear wheel；12nd, hand
Handle；13rd, latch segment；14th, flexible member；15th, support.
Embodiment
Illustrated embodiment is described further to the technical solution of the utility model below in conjunction with the accompanying drawings.
The utility model electronmicroscopic level focus control includes microscope Gripping platform 2, screw nut driving pair, gear and passed
Dynamic secondary and focusing stepper motor 9.
The microscope Gripping platform 2 is installed on level by sagittal left and right line slideway 3 (decussation roller guide rail)
On bottom plate 1；The screw nut driving is secondary, gear driving pair and focusing stepper motor 9 are set in the rear of microscope Gripping platform 2
Put, the secondary screw mandrel 6 (front and rear direction is set, and is made using high-abrasive material) and nut 5 for including mutually screwing of screw nut driving
(being made using self-lubricating material), the nut 5 is located at the rearward end of microscope Gripping platform 2, and the screw mandrel 6 passes through bearing block
A pair of angular contact ball bearings 8 in 7 are supported on horizonal base plate 1；The gear driving pair (driver pinion 10 of engagement with from
Dynamic gear wheel 11) and focusing stepper motor 9 be located on support 15 (being installed on horizonal base plate 1), the driver pinion 10 in
Installed on the output shaft of focusing stepper motor 9, the driven gear wheel 11 is installed on the rear end of screw mandrel 6, the focusing stepping
Be also equipped with motor 9 can manual rotary output axis handle 12；The front end of microscope Gripping platform 2 is provided with and acted on thereon
Elastic spacing mechanism, the elastic spacing mechanism includes positive stop 4, and the positive stop 4 is fixedly installed in horizonal base plate 1
On, pretension has elastic component 14 (compression springs) between positive stop 4 and microscope Gripping platform 2, as shown in Figure 1 and Figure 2.
The indexing accuracy of the focusing stepper motor 9 is set to 0.9 °, and the number of teeth of the driver pinion 10 is set to 22 teeth, institute
The number of teeth for stating driven gear wheel 11 is designed as 60 teeth, and the pitch of the screw mandrel 6 is designed as 0.3mm (small helical pitch), is adjusted so as to reach
Burnt theoretical precision is 0.275 μm/step (in the case that focusing stepper motor 9 does not segment), and the theoretical sensitivity of manual focusing is
0.44 μm, both focusing ranges are ± 4.0mm.
Focus adjustment method of the present utility model：
Control focusing stepper motor 9 or the handle 12 that regulation is focused on stepper motor 9 manually rotate its output shaft, and then
The screw mandrel 6 for driving screw nut driving secondary by gear driving pair rotates, and screw mandrel 6 drives microscope Gripping platform 2 by nut 5
Moved with the microscope being assemblied on microscope Gripping platform 2 along decussation roller guide rail is forward and backward, so as to realize focus adjustment work(
Energy.
For the utility model in forward and backward focussing process, the active force of flexible member 14 backward makes screw mandrel 6 and nut 5 all the time
Close contact eliminates fit clearance together, improves transmission accuracy, reduces the machining accuracy of screw mandrel 6, ensures screw mandrel 6
The accuracy of mesh is also ensured after certain abrasion is subjected to nut 5, the degree of regulation of mechanism is ensure that, improves the stabilization of mechanism
Property.
Claims (6)
1. electronmicroscopic level focus control, including microscope Gripping platform (2), it is characterised in that：The microscope Gripping platform
(2) it is installed on by least left and right two line slideways (3) on horizonal base plate (1), the horizonal base plate (1) is provided with effect
Elastic spacing mechanism in microscope Gripping platform (2) front end, the bottom plate (1) of microscope Gripping platform (2) rear end, which is provided with, to be adjusted
The screw nut driving pair of its forward and backward amount of movement is saved, it is flat that the secondary nut (5) of the screw nut driving is installed on microscope clamping
On platform (2), the secondary screw mandrel (6) of screw nut driving is arranged on horizonal base plate (1) and by with extremely by bearing block (7) support
The gear driving pair connection focusing stepper motor (9) of few primary speed-down gearratio.
2. electronmicroscopic level focus control according to claim 1, it is characterised in that：The gear driving pair includes mutually nibbling
The driver pinion (10) and driven gear wheel (11) of conjunction, the driver pinion (10) are installed on focusing stepper motor (9)
On output shaft, the driven gear wheel (11) is installed on screw mandrel (6), and manual tune is equipped with the focusing stepper motor (9)
Burnt handle (12).
3. electronmicroscopic level focus control according to claim 1 or 2, it is characterised in that：The screw mandrel (6) is using wear-resisting
Material is made, and the nut (5) is made using self-lubricating material.
4. electronmicroscopic level focus control according to claim 1 or 2, it is characterised in that：It is provided with the bearing block (7)
The angular contact ball bearing (8) of a pair of support screws (6).
5. electronmicroscopic level focus control according to claim 1 or 2, it is characterised in that：Set on the horizonal base plate (1)
There is the latch segment (13) that microscope Gripping platform (2) is fixed from clamping sides.
6. electronmicroscopic level focus control according to claim 1 or 2, it is characterised in that：Elastic spacing mechanism bag
The positive stop (4) being fixedly arranged on horizonal base plate (1) is included, is extruded between the positive stop (4) and microscope Gripping platform (2)
Have elastic component (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720403255.1U CN206710694U (en) | 2017-04-17 | 2017-04-17 | Electronmicroscopic level focus control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720403255.1U CN206710694U (en) | 2017-04-17 | 2017-04-17 | Electronmicroscopic level focus control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206710694U true CN206710694U (en) | 2017-12-05 |
Family
ID=60455208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720403255.1U Active CN206710694U (en) | 2017-04-17 | 2017-04-17 | Electronmicroscopic level focus control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206710694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990521A (en) * | 2017-04-17 | 2017-07-28 | 桂林优利特医疗电子有限公司 | Electronmicroscopic level focus control |
-
2017
- 2017-04-17 CN CN201720403255.1U patent/CN206710694U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990521A (en) * | 2017-04-17 | 2017-07-28 | 桂林优利特医疗电子有限公司 | Electronmicroscopic level focus control |
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