CN106886228A - A kind of 3 Shaft angle micro-adjusting mechanisms - Google Patents
A kind of 3 Shaft angle micro-adjusting mechanisms Download PDFInfo
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- CN106886228A CN106886228A CN201710299318.8A CN201710299318A CN106886228A CN 106886228 A CN106886228 A CN 106886228A CN 201710299318 A CN201710299318 A CN 201710299318A CN 106886228 A CN106886228 A CN 106886228A
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- adjusting rod
- back clearance
- clearance adjusting
- bearing
- worm
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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- Automation & Control Theory (AREA)
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Abstract
The present invention provides a kind of 3 Shaft angle micro-adjusting mechanism, belongs to corner micro-adjusting mechanism.Worm component in transition fine setting module is installed, worm component is connected with transition fine setting module, and fine setting module in end is provided with transition fine adjustment stage on rack module.Advantage is novel structure, solve traditional corner micro-adjusting mechanism of single shaft or two axles can not realize around 3 Shaft angle attitude informations adjust the drawbacks of, effectively reduce the inaccuracy of trim process caused by the axial moving that reversely back clearance brings during Worm Wheel System;The rigidity of structure that module is finely tuned in end is increased, the adjustment inaccuracy that reversely back clearance brings in screw pair motion process is solved, the possibility of the original attitude destruction for bringing that exerted a force because locking process is secondary in conventional angle micro-adjusting mechanism is effectively avoided.Mechanism's self-locking performance is good, and Adjustment precision is high, and method of adjustment is easily achieved.
Description
Technical field
The present invention relates to a kind of corner micro-adjusting mechanism, a kind of 3 Shaft angle micro-adjusting mechanism is referred in particular to.
Background technology
The attitude information of Rigid Body In Space includes around 3 corner informations of axle, to realize in Rigid Body In Space attitude information
The high-acruracy survey of any component, at the beginning of measurement, don't fail to ensure obliquity sensor etc. for measurement space rigid body appearance
The measuring instrument of state information, has consistent attitude relation between rigid body to be measured.However, complete measuring instrument relative to
After the coarse adjustment of the installation site of rigid body to be measured, want to only rely upon the experience of workman, make measuring instrument with rigid body to be measured
Between have identical attitude relation be extremely difficult.Therefore, using corner micro-adjusting mechanism as the installation carrier of measuring instrument,
Further the corner fine adjustment function by means of corner micro-adjusting mechanism is the optimal path for solving the problem.
Traditional corner micro-adjusting mechanism, mainly there is three big drawbacks:First, most of corner micro-adjusting mechanisms, are mostly directed to
The corner fine setting of single shaft or two axles, therefore traditional single shaft is also or two Shaft angle micro-adjusting mechanisms, tends not to realize around 3 axles
The adjustment of corner attitude information.Second, most corner micro-adjusting mechanism, all inevasible problem with backlass,
One side backlass can bring the uncertainty of trim process, on the other hand then reduce the rigidity of structure, destroy and adjusted
The stability of journey.Third, most of traditional corner micro-adjusting mechanisms are in the trim process for realizing corner, it is often necessary to loose in advance
Open locking device, secondly can just carry out the adjustment around each Shaft angle, finally be locked again after the fine setting for realizing corner.
But can not ignore, because locking process is a process for exerting a force again, the process very likely makes micro-adjusting mechanism again
It is secondary to shift, and then cause its original attitude to be destroyed.
The content of the invention
The present invention provides a kind of 3 Shaft angle micro-adjusting mechanism, to solve the above-mentioned three big disadvantages that traditional corner micro-adjusting mechanism is present
End.
The present invention is adopted the technical scheme that:Including for installing rack module on the table, the rack module
On excessively fine setting module is installed, four structures that fine setting module in end is provided with the transition micromodule are identical and symmetrical
Arrangement without back clearance adjusting rod one, without back clearance adjusting rod two, without back clearance adjusting rod three, without back clearance adjusting rod four, it is described without back clearance
Adjusting rod one, the end finely tuned in module without back clearance adjusting rod two, without back clearance adjusting rod three, without back clearance adjusting rod four and end are micro-
With bolt connection between leveling platform, a calibrated bolck is installed in the end fine adjustment stage.
The structure of rack module of the present invention is:Including the support being installed on workbench, it is provided with the support
Bearing block one, bearing block two, and a boss with annular groove, and have a support shaft bearing bore on support.
The structure of transition of the present invention fine setting module is:Worm screw group in including being installed on bearing block one, bearing block two
Part, the worm component is connected with the Worm-gear assembly engagement in the bearing hole of support, and the Worm-gear assembly is micro- with transition
Connected with flat key between leveling platform.
The structure of worm component of the present invention is:Including worm screw, installed in the double-row angular contact bal bearing at worm screw two ends
First, double-row angular contact bal bearing two and handwheel, the double-row angular contact bal bearing one, double-row angular contact bal bearing two using back to
The installation form of the back of the body.
The structure of Worm-gear assembly of the present invention is:Including worm gear, worm wheel shaft and it is installed on the depth of worm wheel shaft bottom
Ditch ball bearing, the deep groove ball bearing is installed in the support shaft bearing bore of support.
The structure of transition fine adjustment stage of the present invention is:Including four bearing holes one being arranged symmetrically, bearing holes two, axle
Bearing bore three, bearing hole four and two elastic conjunctions are in the straight pin one in transition fine adjustment stage, straight pin two, the straight pin
First, straight pin two is moved along the annular groove of boss respectively.
The structure of end of the present invention fine setting module is:It is identical including four structures, and correspond to respectively installed in transition
Four in four bearing holes one, bearing hole two, bearing hole three, bearing hole four in fine adjustment stage are without back clearance adjusting rod one, nothing
Back clearance adjusting rod two, without back clearance adjusting rod three, without back clearance adjusting rod four, it is described without back clearance adjusting rod one, without back clearance adjusting rod two,
It is attached with bolt between the fine adjustment stage of end respectively without back clearance adjusting rod three, without back clearance adjusting rod four.
It is of the present invention without back clearance adjusting rod one, without back clearance adjusting rod two, without back clearance adjusting rod three, without back clearance adjusting rod four
Concrete structure and mounting means it is completely the same, by taking the concrete structure without back clearance adjusting rod one as an example, including anti-backlash mechanism and bullet
Two parts of property bindiny mechanism:
The anti-backlash mechanism, including one have externally threaded active adjusting screw rod, the active adjusting screw rod respectively with
Front nut, flange nut form screw pair, and a bullet in compressive state is provided between the front nut, flange nut
Spring, the outside cylinder of the front nut is provided with portion with external threads, and pad is socketed in outside front nut, simultaneously contact with spring, another
Simultaneously contacted with adjusting nut, the adjusting nut is threadedly coupled with the male thread portion of front nut, locking nut is located at adjustment spiral shell
Female outside is simultaneously threadedly coupled with the male thread portion of front nut;
The flexible connection mechanism, including the Flexible Connector leading portion that is bolted between flange nut and elasticity
Connector back segment, between the Flexible Connector leading portion and Flexible Connector back segment, being provided with one has elasticity and in pressure
The tensioner part of contracting state;
It is arranged in the bearing hole one of transition fine adjustment stage by self-aligning bearing without back clearance adjusting rod one, without back clearance adjusting rod
Flexible Connector back segment be bolted with end fine adjustment stage.
Calibrated bolck of the present invention, at least face one, face two have type face precision high, and between the face one, face two
With perpendicularity high.
It is an advantage of the invention that structure is novel, module is finely tuned by comprehensive transition and module is finely tuned in end, realized 3 axles and turn
The fine setting at angle, the traditional corner micro-adjusting mechanism for solving single shaft or two axles can not realize the disadvantage adjusted around 3 Shaft angle attitude informations
End;By designing bearing used by worm component and its mounting means, the radial and axial support angle of worm component is increased firm
Property, and then bigger non-deformability is obtained, effectively reduce the axial direction that reversely back clearance brings during Worm Wheel System
The inaccuracy of trim process caused by moving;It is identical by four structures in the fine adjustment block of end, and be arranged symmetrically without the back of the body
The mounting arrangement of gap adjusting rod, increased the rigidity of structure that module is finely tuned in end;By the anti-backlash mechanism without back clearance adjusting rod
Design, solve the adjustment inaccuracy that reversely back clearance brings in screw pair motion process;By selecting with self-locking performance
Worm and gear and without back clearance adjusting rod, eliminates the use of locking device in traditional corner micro-adjusting mechanism, effectively avoids biography
The possibility of the original attitude destruction brought due to the secondary force of locking process in system angle fine-adjustment mechanism.Mechanism's self-locking performance
Good, Adjustment precision is high, and method of adjustment is easily achieved.With dual axis inclinometer etc. other be used for measurement space rigid body appearance
When the measurement apparatus of state information are measured to the attitude information of Rigid Body In Space, the preferably installation as measurement apparatus of the invention
Carrier, to realize the fine setting of initial attitude of the measuring instrument relative to rigid body to be measured, and then makes measurement apparatus firm with to be measured
There is identical attitude relation between body.
Brief description of the drawings
Fig. 1 is structural representation of the invention;
Fig. 2 is the structural representation of rack module of the present invention;
Fig. 3 is the explosive view of excessively fine setting module of the invention;
Fig. 4 is the explosive view without back clearance adjusting rod of the invention;
Fig. 5 is the partial enlarged drawing without back clearance adjusting rod of the invention.
Specific embodiment
Including for the rack module 2 on workbench 1, being provided with excessively fine setting module on the rack module 2
3, be provided with the transition micromodule 3 end fine setting module 4 four structures it is identical and be arranged symmetrically without back clearance adjusting rod
One 401, without back clearance adjusting rod 2 402, without back clearance adjusting rod 3 403, without back clearance adjusting rod 4 404, it is described without back clearance adjusting rod
One 401, without back clearance adjusting rod 2 402, without back clearance adjusting rod 3 403, without in back clearance adjusting rod 4 404 and end fine setting module 4
End fine adjustment stage 405 between with bolt connection, a calibrated bolck 406 is installed in the end fine adjustment stage 405, it is described
Dual axis inclinometer etc. can be installed for measuring the measurement apparatus of the spatial attitude information of workbench 1 on calibrated bolck 406;
The structure of rack module of the present invention 2 is:Including the support 201 being installed on workbench 1;The support 201
On bearing block 1, bearing block 2 203 be installed, an and boss 204 with annular groove 20401, and in support 201
On have a support shaft bearing bore 205;
The structure of transition of the present invention fine setting module 3 is:In being installed on bearing block 1, bearing block 2 203
Worm component 301, the worm component 301 is connected with the engagement of Worm-gear assembly 302 in the bearing hole 205 of support 201,
Connected with flat key between the Worm-gear assembly 302 and transition fine adjustment stage 303;
The structure of worm component of the present invention 301 is:Including worm screw 30101, installed in the biserial at the two ends of worm screw 30101
Angular contact ball bearing 1, double-row angular contact bal bearing 2 30103 and handwheel 30104, the double-row angular contact bal bearing one
30102nd, double-row angular contact bal bearing 2 30103 uses back-to-back installation form, radial and axial to increase worm component
Support angle rigidity, obtains bigger non-deformability, weakens due to the axial direction that reverse back clearance when worm screw rotates backward brings
Inaccuracy is adjusted caused by moving;
The structure of Worm-gear assembly of the present invention 302 is:Including worm gear 30201, worm wheel shaft 30202 and it is installed on worm gear
The deep groove ball bearing 30203 of the bottom of rotating shaft 30202, the deep groove ball bearing 30203 is installed on the support shaft bearing bore 205 of support 1
It is interior;
The structure of transition fine adjustment stage 303 of the present invention is:Including four bearing holes one 30301, axle being arranged symmetrically
Bearing bore 2 30302, bearing hole 3 30303, bearing hole 4 30304 and two elastic conjunctions are in the circle in transition fine adjustment stage 303
Pin 1, straight pin 2 30306, the straight pin 1, straight pin 2 30306 are respectively along the annular of boss 204
Groove 20401 is moved, and to increase motion rigidity of the transition fine adjustment stage 303 in trim process, improves the stabilization of trim process
Property;
The structure of end of the present invention fine setting module 4 is:It is identical and corresponding installed in transition respectively including four structures
In four bearing holes 1, bearing hole 2 30302, bearing hole 3 30303, bearing hole 4 30304 in fine adjustment stage 303
Four without back clearance adjusting rod 1, without back clearance adjusting rod 2 402, without back clearance adjusting rod 3 403, without back clearance adjusting rod four
404, it is described without back clearance adjusting rod 1, without back clearance adjusting rod 2 402, without back clearance adjusting rod 3 403, without back clearance adjusting rod four
404 are attached between end fine adjustment stage 405 with bolt respectively;
It is of the present invention without back clearance adjusting rod 1, without back clearance adjusting rod 2 402, without back clearance adjusting rod 3 403, without the back of the body
The concrete structure and mounting means of gap adjusting rod 4 404 are completely the same, by taking the concrete structure without back clearance adjusting rod 1 as an example,
Including two parts of anti-backlash mechanism and flexible connection mechanism:
The anti-backlash mechanism, including one have externally threaded active adjusting screw rod 40101, the active adjusting screw rod
40101 form screw pair, the front nut 40102, flange nut 40107 with front nut 40102, flange nut 40107 respectively
Between be provided with a spring 40106 in compressive state, the outside cylinder of the front nut 40102 is provided with the outer spiral shell in part
Line, pad 40103 is socketed in outside front nut 40102, simultaneously contact with spring 40106, another side and adjusting nut 40104 connect
Touch, the adjusting nut 40104 is threadedly coupled with the male thread portion of front nut 40102, locking nut 40105 is located at adjusting nut
Outside is simultaneously threadedly coupled with the male thread portion of front nut 40102;
By adjusting the position of pad 40103 corresponding with the external screw thread of front nut 40102 and adjusting nut 40104, can be square
The precompression of adjustment spring 40106 just, and it is locking that locking is carried out to it with locking nut 40105;Due to the spring 40106
Presence so that the lower flank of front nut 40102 is contacted with the upper flank of active adjusting screw rod 40101, flange nut
40107 upper flank is contacted with the lower flank of active adjusting screw rod 40101, and then effectively avoids conventional helical pair
Reverse back clearance problem, increased the accuracy being in course of adjustment without back clearance adjusting rod 401;
The flexible connection mechanism, including the Flexible Connector leading portion being bolted between flange nut 40107
40108 and Flexible Connector back segment 40110, between the Flexible Connector leading portion 40108 and Flexible Connector back segment 40110,
Being provided with one has elasticity and the tensioner part 40109 in compressive state;Due to the presence of the tensioner part 40109, it is allowed to
Small size drift angle is produced between Flexible Connector leading portion 40108 and Flexible Connector back segment 40110;
The bearing hole one of transition fine adjustment stage 303 is arranged on by self-aligning bearing 40100 without back clearance adjusting rod 1
In 30301, the Flexible Connector back segment 40110 without back clearance adjusting rod 401 is bolted with end fine adjustment stage 405;By
In the trim process in end fine adjustment stage 405, the small size deflection of end fine adjustment stage 405 can cause without back clearance adjusting rod
401 form small angle with the axis of bearing hole 30301, therefore use self-aligning bearing 40100 and Flexible Connector to adapt to the folder
Angle, and then ensure bearing, the normal operation without back clearance adjusting rod;
Calibrated bolck of the present invention 406, at least face 1, face 2 40602 have type face precision high, and described
There is perpendicularity high between face 1, face 2 40602.
Operation principle of the invention:
For ease of description, the referential O-XYZ for being fixed on workbench 1, and the reference for being fixed on calibrated bolck 406 are built respectively
It is O '-UVW.Using the 3 Shaft angle micro-adjusting mechanism, the fine setting of end fine adjustment stage 405 is realized, finally cause referential O '-UVW
There can be identical attitude relation with referential O-XYZ.
Before the attitude to end fine adjustment stage 405 is finely adjusted, the 3 Shaft angle micro-adjusting mechanism need to be completed in workbench
On thick installment work, and require that the corner deviation relative to workbench about the z axis of end fine adjustment stage 3 is not more than 5。, around X, Y-axis
Attitude angular displacement be not more than 3。。
As detect the 3 Shaft angle micro-adjusting mechanism roughly install whether satisfactory foundation, with amesdial gauge outfit contact
The face 1 of calibrated bolck 406, and along Y-direction move distance △ sa,y, record amesdial gauge outfit is △ in increment in X direction
xa,y;The face 2 40602 of calibrated bolck 406 is contacted with amesdial gauge outfit, move distance is △ s in X directionb,x, amesdial gauge outfit exists
It is △ z along the increment of Z-directionb,x;With amesdial gauge outfit contact calibrated bolck face 2 40602, along Y-direction move distance △ sb,y, thousand
Table gauge outfit is divided to be △ z along the increment of Z-directionb,y;According to rigid body pose transformation relation, can obtain measurement coordinate system O '-UVW with
Attitude error between operating reference system O-XYZ is △ α, △ β, △ γ.
Wherein:
△ α are angular errors of referential the O '-UVW around the X-axis of referential O-XYZ;
△ β are angular errors of referential the O '-UVW around the Y-axis of referential O-XYZ;
△ γ are angular errors of referential the O '-UVW around the Z axis of referential O-XYZ.
After the thick installation for completing the micro-adjusting mechanism, the method for trimming of the 3 Shaft angle micro-adjusting mechanism is:By rotating hand
Wheel 30104, the rotation of the handwheel 30104 makes worm component 301 drive the rotation of the Worm-gear assembly 302 being engaged with;It is described
Worm-gear assembly 302 drives the rotation of transition fine adjustment stage 303 by the flat key between transition fine adjustment stage 303;The transition
The rotation of fine adjustment stage 303, drives the rotation of end fine adjustment stage 405, and then realizes end fine adjustment stage corner about the z axis
Fine setting.By being raised and lowered without back clearance adjusting rod 1, without back clearance adjusting rod 2 402, and reduce or raise without back clearance regulation
Bar 3 403, the height without back clearance adjusting rod 4 404, realize fine setting of the end fine adjustment stage around the corner of X-axis.By raise or
Reduce without back clearance adjusting rod 1, without back clearance adjusting rod 3 403, and reduce or raise without back clearance adjusting rod 2 402, without back clearance
The height of adjusting rod 4 404, realizes fine setting of the end fine adjustment stage around Y-axis corner.
The present invention has preferred embodiment carried out detailed explanation by above-mentioned, however, by studying carefully above,
Change to the implementation method is all these such as obvious, the intention of applicant to those of ordinary skill in the art
Change should all fall within the scope and spirit of the invention.
Claims (9)
1. a kind of 3 Shaft angle micro-adjusting mechanism, it is characterised in that:Including for installing rack module on the table, the branch
Be provided with frame module excessively fine setting module, be provided with the transition micromodule end fine setting module four structures it is identical,
And be arranged symmetrically without back clearance adjusting rod one, without back clearance adjusting rod two, without back clearance adjusting rod three, without back clearance adjusting rod four, it is described
Without back clearance adjusting rod one, without back clearance adjusting rod two, without back clearance adjusting rod three, without in back clearance adjusting rod four and end fine setting module
With bolt connection between the fine adjustment stage of end, a calibrated bolck is installed in the end fine adjustment stage.
2. a kind of 3 Shaft angle micro-adjusting mechanism according to claim 1, it is characterised in that:The structure of the rack module is:
Including the support being installed on workbench, bearing block one, bearing block two are installed on the support, and one has annular groove
Boss, and have a support shaft bearing bore on support.
3. a kind of 3 Shaft angle micro-adjusting mechanism according to claim 1, it is characterised in that:The knot of module is finely tuned in the transition
Structure is:Worm component in including being installed on bearing block one, bearing block two, the worm component and the bearing hole for being arranged on support
In Worm-gear assembly engagement connection, between the Worm-gear assembly and transition fine adjustment stage with flat key connect.
4. a kind of 3 Shaft angle micro-adjusting mechanism according to claim 3, it is characterised in that:The structure of the worm component is:
Including worm screw, double-row angular contact bal bearing one, double-row angular contact bal bearing two and handwheel installed in worm screw two ends, the biserial
Angular contact ball bearing one, double-row angular contact bal bearing two use back-to-back installation form.
5. a kind of 3 Shaft angle micro-adjusting mechanism according to claim 3, it is characterised in that:The structure of the Worm-gear assembly is:
Including worm gear, worm wheel shaft and the deep groove ball bearing of worm wheel shaft bottom is installed on, the deep groove ball bearing is installed on support
In support shaft bearing bore.
6. a kind of 3 Shaft angle micro-adjusting mechanism according to claim 3, it is characterised in that:The knot of the transition fine adjustment stage
Structure is:Including four bearing holes one being arranged symmetrically, bearing hole two, bearing hole three, bearing hole four and two elastic conjunctions in mistake
Straight pin one, the straight pin two crossed in fine adjustment stage, the straight pin one, straight pin two are transported along the annular groove of boss respectively
It is dynamic.
7. a kind of 3 Shaft angle micro-adjusting mechanism according to claim 1, it is characterised in that:Finely tune the knot of module in the end
Structure is:It is identical including four structures, and correspond to respectively four bearing holes one in the transition fine adjustment stage, bearing hole two,
Four in bearing hole three, bearing hole four are without back clearance adjusting rod one, without back clearance adjusting rod two, without back clearance adjusting rod three, without back clearance
Adjusting rod four, it is described to distinguish without back clearance adjusting rod one, without back clearance adjusting rod two, without back clearance adjusting rod three, without back clearance adjusting rod four
It is attached with bolt between the fine adjustment stage of end.
8. a kind of 3 Shaft angle micro-adjusting mechanism according to claim 7, it is characterised in that:It is described without back clearance adjusting rod one, nothing
It is back clearance adjusting rod two, completely the same without back clearance adjusting rod three, the concrete structure without back clearance adjusting rod four and mounting means, with without the back of the body
As a example by the concrete structure of gap adjusting rod one, including two parts of anti-backlash mechanism and flexible connection mechanism:
The anti-backlash mechanism, including one have externally threaded active adjusting screw rod, the active adjusting screw rod respectively with preceding spiral shell
Female, flange nut forms screw pair, and a spring in compressive state, institute are provided between the front nut, flange nut
The outside cylinder for stating front nut is provided with portion with external threads, pad is socketed in outside front nut, simultaneously contact with spring, another side with
Adjusting nut is contacted, and the adjusting nut is threadedly coupled with the male thread portion of front nut, and locking nut is located at adjusting nut outside
And be threadedly coupled with the male thread portion of front nut;
The flexible connection mechanism, including the Flexible Connector leading portion that is bolted between flange nut and elastic connection
Part back segment, between the Flexible Connector leading portion and Flexible Connector back segment, being provided with one has elasticity and in compression shape
The tensioner part of state;
It is arranged in the bearing hole one of transition fine adjustment stage by self-aligning bearing without back clearance adjusting rod one, the bullet without back clearance adjusting rod
Property connector back segment is bolted with end fine adjustment stage.
9. a kind of 3 Shaft angle micro-adjusting mechanism according to claim 1, it is characterised in that:The calibrated bolck at least face one,
Face two has type face precision high, and has perpendicularity high between the face one, face two.
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CN201710299318.8A CN106886228B (en) | 2017-04-29 | 2017-04-29 | A kind of 3 Shaft angle micro-adjusting mechanisms |
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CN201710299318.8A CN106886228B (en) | 2017-04-29 | 2017-04-29 | A kind of 3 Shaft angle micro-adjusting mechanisms |
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CN106886228A true CN106886228A (en) | 2017-06-23 |
CN106886228B CN106886228B (en) | 2018-08-28 |
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Cited By (3)
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CN112894342A (en) * | 2021-01-13 | 2021-06-04 | 东莞理工学院 | Micro-corner adjusting device used in micro-assembly of intelligent machine parts |
CN112936203A (en) * | 2021-02-03 | 2021-06-11 | 大族激光科技产业集团股份有限公司 | Motion platform |
CN114234001A (en) * | 2021-11-10 | 2022-03-25 | 北京航天计量测试技术研究所 | Two-dimensional precision gap eliminating adjusting mechanism of photoelectric autocollimator |
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CN114234001A (en) * | 2021-11-10 | 2022-03-25 | 北京航天计量测试技术研究所 | Two-dimensional precision gap eliminating adjusting mechanism of photoelectric autocollimator |
CN114234001B (en) * | 2021-11-10 | 2024-04-09 | 北京航天计量测试技术研究所 | Two-dimensional precision gap eliminating adjusting mechanism of photoelectric auto-collimator |
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