CN105114578B - Quick high-precision micro-distance adjusting device - Google Patents
Quick high-precision micro-distance adjusting device Download PDFInfo
- Publication number
- CN105114578B CN105114578B CN201510450789.5A CN201510450789A CN105114578B CN 105114578 B CN105114578 B CN 105114578B CN 201510450789 A CN201510450789 A CN 201510450789A CN 105114578 B CN105114578 B CN 105114578B
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- China
- Prior art keywords
- fine
- hole
- accurate
- adjusting unit
- unit body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
Abstract
The invention relates to a quick high-precision micro-distance adjusting device. The quick high-precision micro-distance adjusting device comprises a base and a fine adjustment unit, wherein the fine adjustment unit is connected with a threaded through hole in the base in a matched mode and locked through a lock nut. The fine adjustment unit is formed by connecting a fine adjustment unit body, a fine adjustment stud, a differential threaded sleeve and a set screw in a matched mode. An external thread of the fine adjustment unit body is connected with the threaded through hole in the base in a matched mode. The lock nut is connected with the external thread of the fine adjustment unit body in a matched mode and abuts against the right end of the base. A precise polish shaft is matched with a precise unthreaded hole of the fine adjustment unit body. A second precise external thread of the differential threaded sleeve is connected with a first precise threaded hole of the fine adjustment unit body in a matched mode. A second precise internal threaded hole of the differential threaded sleeve is connected with a first precise external thread of the fine adjustment stud in a matched mode. The set screw is connected with a set screw hole of the fine adjustment unit body in a matched mode. The quick high-precision micro-distance adjusting device can conduct quick and fine adjustment and is high in accuracy, concise in structure, easy to manufacture and low in cost.
Description
Technical field
The present invention relates to mechanical mechanism distance element adjustment means, and in particular to a kind of quick high accuracy distance element adjusts dress
Put.Core is that one kind reaches Precision trimming distance by screw-driven and pitch difference, it is adaptable to needed in machinery industry accurate
In the mechanical mechanism of trace regulation, such as micron even nano level trace regulation field.
Background technology
Machine industry, particularly high accuracy manufacturing, in order to reach the micron even adjustment of nano-precision, often
Need to spend high precision apparatus of the high cost investment to buy developed country to meet requirement, or sacrifice substantial amounts of
Substandard product, high-precision requirement is met by selection.For above-mentioned problem, relevant technical staff has made and having exerted
Power, have developed precision micrometer adjustable device.A kind of precision micrometer adjustable device as disclosed in CN202674207U, is related to a kind of differential spiral shell
Rotation micromatic setting.The device is made up of base, guide post, guide plate, screw rod, screw, adjustment swivel nut, is arranged on the base
The screwed hole of lower insertion and the unthreaded hole of up/down perforation；The adjustment swivel nut is sleeve-like structure, and external cylindrical surface is provided with external screw thread, inner circle
Cylinder is provided with female thread, and external screw thread is threadedly coupled with screwed hole, formed a pair of screw pairs, the female thread on the adjustment swivel nut with
Screw flight connects, and the female thread of the adjustment swivel nut, externally threaded rotation direction are consistent, but pitch, the spiral shell of two screw pairs
Rotation is poor, as rotates the fine setting distance that adjustment swivel nut one is enclosed and produced.The differential screw fine adjustment device simple structure, design are closed
Reason, it is easy to operate；The actual straight-line displacement amount of differential generation is little, it is possible to achieve precise fine-adjustment；Differential differential tuning is convenient, location positioning
Reliable, precision is high, and the scope of application is than wide.This is undoubtedly a kind of beneficial exploration, but also there are other paths.
The content of the invention
It is an object of the invention to provide a kind of quick high accuracy distance element adjusting means, it can not only fast trace tune
Section, and degree of accuracy is high；Simple for structure, easy to manufacture, cost is very low.
A kind of quick high accuracy distance element adjusting means of the present invention, including the tapped through hole on pedestal and pedestal
The fine-adjusting unit for being connected and being locked by locking nut, is characterized in that：
The fine-adjusting unit is connected and is constituted by fine-adjusting unit body, fine setting stud, gap thread bush and holding screw；
The center of the fine-adjusting unit body is provided with ladder hole, outer circumference surface and is provided with external screw thread, the fine-adjusting unit
The left part of the ladder hole of body is the first precision threaded hole for accurate unthreaded hole, middle part and right part, in the fine-adjusting unit body
Left part be provided with set screw hole that is vertical with the accurate unthreaded hole and communicating, be provided with outer in the right-hand member of the fine-adjusting unit body
Polygonized structure；The external screw thread of the fine-adjusting unit body is connected with the tapped through hole on the pedestal, the locking screw
Female external screw thread with the fine-adjusting unit body is connected and abuts with the right-hand member of pedestal；
Left section of the fine setting stud is provided with the first accurate external screw thread, the fine setting spiral shell for accurate optical axis, stage casing and right section
The left end of post is operative end surface, and on the accurate optical axis anti-rotation keyway is provided with；The accurate optical axis and the fine-adjusting unit sheet
The accurate unthreaded hole of body coordinates；
The outer circumference surface of the gap thread bush is provided with the second accurate external screw thread, the gap thread bush left part and
The centre at middle part is provided with the second accurate internal thread hole, is provided with interior polygon in the centre of the right part of the gap thread bush
Shape structure；The accurate external screw thread of the second of the gap thread bush coordinates with the first precision threaded hole of the fine-adjusting unit body and connects
Connect, the second accurate internal thread hole of the gap thread bush is connected with the first accurate external screw thread of the fine setting stud；
The holding screw is connected with the set screw hole of the fine-adjusting unit body, the lower end of the holding screw
Coordinate with the anti-rotation keyway of the fine setting stud.Be screwed into holding screw can prevent rotational difference away from thread bush when fine setting stud therewith
Rotation.
A kind of described quick high accuracy distance element adjusting means, the female thread of its locking nut is single with the fine setting
The external screw thread of meta-ontology is connected, and multiple pin holes for equidistantly distributing are provided with the outer circumference surface of the locking nut.
Further, the outer polygonized structure is outer hexagon, outer tetragon or outer triangle.
Further, the inner polygon structure is interior hexagon, interior tetragon or interior triangle.
" fine setting " as the term suggests, can only micro distance regulation, it is actually used in often also need to the adjustment of relatively long distance,
Fine-adjusting unit body is screwed in the tapped through hole of pedestal, by rotary fine adjustment cell body, i.e., can be reached whole
The quick movement of fine-adjusting unit.
The present invention is especially suitable for the fine setting work of very high degree of precision, according to the pitch difference and rotation transmission essence of fine-adjusting unit
The difference of degree, trimming precision can reach micron until nano level precision.Dependable performance of the present invention, using method are simple, make
Being even more with cost reduces tens of or even hundreds times.Quick high accuracy fine-adjusting unit of the present invention, using the secondary pitch difference of accurate thread
Principle is adjusted in high precision to reach, and its structural principle is fairly simple, and manufacture difficulty can manufacture the sword of screw thread pair with regard to the current country
All can easily accomplish for measurer producer.The use cost of the present invention is extremely low, only the tens of or even number of other patterns
One of percentage.
Description of the drawings
Fig. 1 is quick high accuracy fine-adjusting unit overall construction drawing of the present invention
Fig. 2 is the structural representation of pedestal；
Fig. 3 is the structural representation of fine-adjusting unit body；
Fig. 4 is the right view of Fig. 3；
Fig. 5 is the structural representation for finely tuning stud；
Fig. 6 is the A-A sectional drawings of Fig. 5；
Fig. 7 is the structural representation of gap thread bush；
Fig. 8 is the right view of Fig. 7；
Fig. 9 is the structural representation of locking nut；
Figure 10 is Fig. 9 right views；
Figure 11 is the structural representation of fine-adjusting unit.
In figure：1- holding screws, 2- pedestals, 21- tapped through holes；
3- fine-adjusting unit bodies, 31- external screw threads, 32- precision unthreaded holes, the precision threaded holes of 33- first, 34- clamp screws
Nail, the outer polygonized structures of 35-；
4- finely tunes stud, 41- precision optical axises, the accurate external screw threads of 42- first, 43- operative end surfaces, 44- antirotation keys
Groove；
5- gap thread bush, the accurate external screw threads of 51- second, the accurate internal thread holes of 52- second, 53- inner polygons knot
Structure；
6- locking nuts, 61- female threads, 62- pin holes.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described.
Referring to Fig. 1 to Figure 11, a kind of described quick high accuracy distance element adjusting means, including on pedestal 2 and pedestal
The fine-adjusting unit that tapped through hole 21 is connected and is locked by locking nut 6, its project substantive distinguishing features be：The fine setting
Unit is connected and is constituted by fine-adjusting unit body 3, fine setting stud 4, gap thread bush 5 and holding screw 1；
The center of the fine-adjusting unit body 3 is provided with ladder hole, outer circumference surface and is provided with external screw thread 31, and the fine setting is single
The left part of the ladder hole of meta-ontology is the first precision threaded hole 33 for accurate unthreaded hole 32, middle part and right part, single in the fine setting
The left part of meta-ontology 3 is provided with set screw hole 34 that is vertical with the accurate unthreaded hole 32 and communicating, in the fine-adjusting unit body 3
Right-hand member be provided with outer polygonized structure 35；Tapped through hole 21 on the external screw thread 31 of the fine-adjusting unit body and the pedestal 2
It is connected, the locking nut 6 is connected and tight with the right-hand member of pedestal 2 with the external screw thread 31 of the fine-adjusting unit body
Lean on；
Left section of the fine setting stud 4 is that accurate optical axis 41, stage casing and right section are provided with the first accurate external screw thread 42, described micro-
The left end for adjusting stud is operative end surface 43, and on the accurate optical axis 41 anti-rotation keyway 44 is provided with；The accurate optical axis with it is described
The accurate unthreaded hole 32 of fine-adjusting unit body coordinates；
The outer circumference surface of the gap thread bush 5 is provided with the second accurate external screw thread 51, on a left side for the gap thread bush
The centre at portion and middle part is provided with the second accurate internal thread hole 52, is provided with the centre of the right part of the gap thread bush
Inner polygon structure 53；The accurate external screw thread 51 of the second of the gap thread bush and the first of the fine-adjusting unit body the accurate spiral shell
Pit 33 is connected, the first accurate outer spiral shell of the second precision internal thread hole 52 of the gap thread bush and the fine setting stud
Stricture of vagina 42 is connected；
The holding screw 1 is connected with the set screw hole 34 of the fine-adjusting unit body, the holding screw
Lower end coordinates with the anti-rotation keyway 44 of the fine setting stud.Be screwed into holding screw can prevent rotational difference away from thread bush when finely tune spiral shell
Post is rotated with.
A kind of described quick high accuracy distance element adjusting means, the female thread 61 of its locking nut 6 is micro- with described
Adjust cell body external screw thread 31 be connected, be provided with the outer circumference surface of the locking nut it is multiple equidistantly distribute insert
Pin-and-hole 62.
Further, the outer polygonized structure 35 is outer hexagon, outer tetragon or outer triangle.
Further, the inner polygon structure 53 is interior hexagon, interior tetragon or interior triangle.
The fine-adjusting unit of the present invention is the part that a dependent is used, it is adaptable to coordinate other to need setting for Precision trimming
It is standby to use.The pedestal 2 of the present invention in addition to tapped through hole 21 is fixed, its face shaping and with the rigging position of miscellaneous equipment according to
Use requirement can be compatible configuration shape.
Left section of the fine setting stud is accurate optical axis 41, has precision-fit to want with the accurate unthreaded hole 32 of fine-adjusting unit body
Ask；Simultaneously accurate optical axis 41 has axiality requirement and operative end surface 43 to have perpendicularity to require with the first accurate external screw thread 42.In essence
There is an anti-rotation keyway 44 on the face of cylinder of close optical axis 41.The stage casing of fine setting stud and right section are the first accurate external screw thread 42, with
The accurate internal thread hole 52 of the second of gap thread bush 5 is screwed.The accurate internal thread hole 52 of the second of gap thread bush is smart with second
Close external screw thread 51 also has axiality to require.By gap thread bush（Fine setting stud has been screwed in）The second accurate external screw thread 51 screw in it is micro-
In adjusting the first precision threaded hole 33 of cell body, while the accurate optical axis 41 for finely tuning stud is also inserted into fine-adjusting unit body precision
In unthreaded hole 32, adjust（Two screw thread pairs）The second accurate precision of internal thread hole 52 and first external screw thread 42, the first accurate thread
The effective thread screwing length of the accurate external screw thread 51 in hole 33 and second, is then screwed into holding screw in case spin-ended slip is away from thread bush
When fine setting stud rotate with.Again by interior hexagonal structure 53 of the inner hexagon spanner difference in rotation away from thread bush, for each revolution,
Fine setting stud moves the pitch difference of the one second accurate precision of internal thread hole 52 and second external screw thread 51.
As an example describing in detail：Assume that the second accurate pitch of internal thread hole 52 is 0.7mm, the second accurate external screw thread 51
Pitch is 0.75mm, the gap that turns clockwise thread bush one week, and fine setting stud is exactly rotation counterclockwise relative to gap thread bush
One week, and relative to fine-adjusting unit body, because of the restriction rotation for having holding screw, then just do not rotate and only move axially,
The end face 43 of fine setting stud has just advanced 0.75-0.7=0.05mm, if finely tuned with the range estimation precision of people, people's range estimation precision is extremely
1/8 circle is can be as accurate as less（45°）Even if the then manual operation by people is controlled, and the fine-adjusting unit can be accurate to 0.05/8
=0.006mm, i.e., 6 μm, if the fine-adjusting unit and lowest accuracy（Scale division value 2 '）Dividing head collocation, then precision can reach
0.05/ (360 × 60)=0.0023 μm, i.e. 2.3nm (nanometer).The IT01 levels of full accuracy in the ratio of precision standard of tolerance grade
All taller more than 300 times, even if comparing with 00 grade of gauge block of full accuracy grade, its precision is also higher by 26 times.
In gap thread bush 5 53 represent in hexagonal structure, or four directions or other any can transmit revolving force
Structure, be possibly even the gear mechanism by being connected with dividing head.
Fine setting principle for fine-adjusting unit described above, because fine-adjusting unit only has short-range regulation, and it is actually used
Middle coarse range is generally large, then, fine-adjusting unit external screw thread 31 is inserted in the tapped through hole 21 of pedestal 2, micro- by rotating
The outer polygonized structure 35 of the right-hand member of cell body 3 is adjusted, the overall fast forwarding and fast rewinding of fine-adjusting unit can be reached.When fine-adjusting unit it is fast
After entering the ideal position setting of rewind, then the locking fine-adjusting unit of rotational lock nut 6 finely tunes gap thread bush, reaches fine setting
Purpose.
Outer polygonized structure 35 in fine-adjusting unit body 3 represent four directions, or six sides or other any can pass
Pass the structure of revolving force.
Pin hole 62 on locking nut 6 is used for plus latch increases coupling mechanism force, or other structures pattern.
Claims (4)
1. a kind of quick high accuracy distance element adjusting means, including pedestal（2）With the tapped through hole on pedestal（21）It is connected
And by locking nut（6）The fine-adjusting unit of locking, is characterized in that：
The fine-adjusting unit is by fine-adjusting unit body（3）, fine setting stud（4）, gap thread bush（5）And holding screw（1）Coordinate
Connect and compose；
The fine-adjusting unit body（3）Center be provided with ladder hole, outer circumference surface and be provided with external screw thread（31）, the fine setting list
The left part of the ladder hole of meta-ontology is accurate unthreaded hole（32）, middle part and right part be the first precision threaded hole（33）, described micro-
Adjust cell body（3）Left part be provided with and the accurate unthreaded hole（32）Set screw hole that is vertical and communicating（34）, described micro-
Adjust cell body（3）Right-hand member be provided with outer polygonized structure（35）；The external screw thread of the fine-adjusting unit body（31）With the base
Seat（2）On tapped through hole（21）It is connected, the locking nut（6）With the external screw thread of the fine-adjusting unit body（31）Match somebody with somebody
Close connection and and pedestal（2）Right-hand member abut；
The fine setting stud（4）Left section be accurate optical axis（41）, stage casing and right section be provided with the first accurate external screw thread（42）, it is described
The left end of fine setting stud is operative end surface（43）, in the accurate optical axis（41）It is provided with anti-rotation keyway（44）；The precise light
The accurate unthreaded hole of axle and the fine-adjusting unit body（32）Coordinate；
The gap thread bush（5）Outer circumference surface be provided with the second accurate external screw thread（51）, on a left side for the gap thread bush
The centre at portion and middle part is provided with the second accurate internal thread hole（52）, set in the centre of the right part of the gap thread bush
There is inner polygon structure（53）；The accurate external screw thread of the second of the gap thread bush（51）With the first of the fine-adjusting unit body
Precision threaded hole（33）It is connected, the second accurate internal thread hole of the gap thread bush（52）With the of the fine setting stud
One accurate external screw thread（42）It is connected；
The holding screw（1）With the set screw hole of the fine-adjusting unit body（34）It is connected, the holding screw
Lower end and the anti-rotation keyway for finely tuning stud（44）Coordinate.
2. a kind of quick high accuracy distance element adjusting means according to claim 1, is characterized in that：The locking nut
（6）Female thread（61）With the external screw thread of the fine-adjusting unit body（31）It is connected, in the excircle of the locking nut
Face is provided with multiple pin holes for equidistantly distributing（62）.
3. a kind of quick high accuracy distance element adjusting means according to claim 1 and 2, is characterized in that：It is described outer polygon
Shape structure（35）For outer hexagon, outer tetragon or outer triangle.
4. a kind of quick high accuracy distance element adjusting means according to claim 1 and 2, is characterized in that：It is described interior polygon
Shape structure（53）For interior hexagon, interior tetragon or interior triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510450789.5A CN105114578B (en) | 2015-07-28 | 2015-07-28 | Quick high-precision micro-distance adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510450789.5A CN105114578B (en) | 2015-07-28 | 2015-07-28 | Quick high-precision micro-distance adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105114578A CN105114578A (en) | 2015-12-02 |
| CN105114578B true CN105114578B (en) | 2017-05-03 |
Family
ID=54662634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510450789.5A Active CN105114578B (en) | 2015-07-28 | 2015-07-28 | Quick high-precision micro-distance adjusting device |
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| CN (1) | CN105114578B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673791A (en) * | 2016-03-16 | 2016-06-15 | 沈阳中之杰流体控制系统有限公司 | Multistage transmission mechanism |
| CN106402306B (en) * | 2016-09-26 | 2019-12-03 | 中国科学院上海光学精密机械研究所 | Angle adjustment fine-tuning screw component |
| CN106271778A (en) * | 2016-09-29 | 2017-01-04 | 天津大学 | A kind of flexible distributing clamper for microsphere clamping Yu location |
| CN107088637B (en) * | 2017-06-28 | 2019-07-05 | 江苏宝特汽车部件有限公司 | A kind of filature sliding block adjustment mechanism |
| CN108730456A (en) * | 2018-05-09 | 2018-11-02 | 江西中船航海仪器有限公司 | A kind of dead-beat fine motion adjustment mechanism |
| CN111251053B (en) * | 2020-01-16 | 2021-06-08 | 深圳市强华科技发展有限公司 | High-precision guide rail correcting device |
| CN111487742B (en) * | 2020-05-29 | 2022-04-19 | 中国科学院长春光学精密机械与物理研究所 | Differential heavy-load fine adjustment mechanism |
| CN114411831B (en) * | 2022-01-27 | 2024-02-06 | 中国建设基础设施有限公司 | Device for controlling slow change of axial force of anchor rod in foundation pit model test |
| CN117694983A (en) * | 2024-02-05 | 2024-03-15 | 苏州爱得科技发展股份有限公司 | Connecting piece and bone external fixator with same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3349638A (en) * | 1965-08-31 | 1967-10-31 | Morse Controls Inc | Selective vernier control |
| DE102004058935A1 (en) * | 2004-12-07 | 2006-06-08 | Bosch Rexroth Ag | Electrically driven linear actuator |
| CN201335131Y (en) * | 2009-01-14 | 2009-10-28 | 北京欧普光学仪器有限责任公司 | Differential thread displacement device |
| US20110162468A1 (en) * | 2010-01-06 | 2011-07-07 | Yu-Jen Lin | Coarse/fine adjustment linear displacement mechanism |
| CN201747883U (en) * | 2010-07-20 | 2011-02-16 | 中国航空工业集团公司西安飞机设计研究所 | Screw micro-adjustment mechanism |
| CN102705463A (en) * | 2012-06-13 | 2012-10-03 | 天润曲轴股份有限公司 | Differential screw fine adjustment device |
-
2015
- 2015-07-28 CN CN201510450789.5A patent/CN105114578B/en active Active
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| CN105114578A (en) | 2015-12-02 |
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