CN109406169A - A kind of positioning pedestal and positioning device - Google Patents
A kind of positioning pedestal and positioning device Download PDFInfo
- Publication number
- CN109406169A CN109406169A CN201811487926.2A CN201811487926A CN109406169A CN 109406169 A CN109406169 A CN 109406169A CN 201811487926 A CN201811487926 A CN 201811487926A CN 109406169 A CN109406169 A CN 109406169A
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- positioning
- pedestal
- sliding
- adjustment mechanism
- slide adjustment
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000009863 impact test Methods 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a kind of positioning pedestal and positioning devices, belong to machinery positioning technical field.The positioning pedestal includes pedestal and slide adjustment mechanism, and the pedestal is fixed along horizontal datum level, and the slide adjustment mechanism is horizontally fixed on the pedestal, and is slidably adjusted along the vertical reference line vertical with the horizontal datum.Positioning pedestal and positioning device provided by the invention, positioning operation is convenient, flexible, high-efficient, and can also ensure setting accuracy, is particularly suitable in a variety of machinery positioning scenes for being related to tracks positioned (such as impact test vehicle location).
Description
Technical field
The present invention relates to machinery positioning technical field, in particular to a kind of positioning pedestal and positioning device.
Background technique
Machinery positioning is a ring critically important in field of mechanical technique, and different machine applications scenes can be related to not of the same race fixed
Position technology and equipment, but be related to setting position baseline mostly, and realize machinery positioning or alignment by corresponding positioning element
Purpose.For example, being related to traction track, tracks positioned etc., more typical one kind is exactly vehicle in vehicle impact test among these
The positioning of placement angle.
Impact test directly can truly react the security performance of vehicle, be that Development of New Automobile Products in the process must be more
The pilot project of secondary progress.Due to its testing expenses valuableness, so the collision of progress tries in trial production of new products and type approval
The success rate tested especially is paid close attention to.Wherein, the positioning that vehicle angles are put during impact test is critically important, because touching
Hit the test preparation stage, it is larger that the collision angle of test vehicle puts error, will lead to impact test failure, increase test at
This.And currently, mostly use the outmoded mode such as angle calculation, setting-out in the field, without specific purpose tool, not only low efficiency, angle
Precision is not also high.It even include international impact test, the scheme in relation to vehicle placement angle is used during impact test
When it is too long, angle precision is low, influence impact test result.
Summary of the invention
In order to solve problems in the prior art, the embodiment of the invention provides a kind of positioning pedestal and positioning devices, not only
Locating speed is fast, and precision is high.The technical solution is as follows:
On the one hand, a kind of positioning pedestal, including pedestal and slide adjustment mechanism are provided, the pedestal is along horizontal datum
Level is fixed, and the slide adjustment mechanism is horizontally fixed on the pedestal, and along vertical with the horizontal datum vertical
Reference line slidably adjusts.
Preferably, the slide adjustment mechanism includes sliding rail part and sliding part, and the center line of the sliding rail part hangs down along described
Straight reference line is fixed on the pedestal, the sliding part on the sliding rail part along the vertical reference line slidably.
Preferably, the slide adjustment mechanism further includes sliding adjustment bolt, and the sliding adjustment bolt passes through the cunning
The centre bore of moving part.Such setting, was not only conveniently adjusted, but also can be adjusted with small scale, and positioning accuracy is high.
Preferably, the both ends of the slide adjustment mechanism are equipped with block piece, so that the sliding part is limited in the cunning
Sliding in rail member.Such setting, can be avoided carry out sliding adjustment when, sliding part falls off from sliding rail part, further increases
The stability of device.
Preferably, the block piece is equipped with the threaded hole or groove passed through for the sliding adjustment bolt.Such setting
Even if so that in the presence of block piece, also can advantageously, pass unopposed through sliding adjustment bolt to sliding in sliding rail part
The sliding of moving part adjusts.
Preferably, the pedestal lower part, which is equipped with, fixes component, which is used for along the horizontal datum and positioning
Track fixes.Such set-up mode, so that pedestal not only fixation on positioning track, but also it is easy for installation.
Preferably, the fixing component be with the matched protrusion of the positioning track, and/or, at the edge of the pedestal
Position is equipped with multiple horizontal adjusting bolts.The bulge-structure set-up mode for fixing component, further improves the convenience of operation.
Multiple horizontal adjusting bolts are used to carry out horizontal adjustment to pedestal, keep pedestal 1 more stable in the positioning in horizontal datum direction.
On the other hand, a kind of positioning device is provided, including the positioning pedestal according to any of the above-described technical solution,
Angle positioning device is installed above the positioning pedestal.
Preferably, the angle positioning device includes protractor, grating rotating frame and set on the grating rotating frame
Rasterizer, the protractor are installed in the slide adjustment mechanism, and the grating rotating is erected on the protractor.Pass through
Such structure setting, not only having improved can only be using the locating speed of the conventional mapping methods such as setting-out, angle calculation, but also can ensure
Positioning accuracy has better solved existing scheme and has positioned the technical issues of time-consuming, low efficiency.
Preferably, arrow component, the center line of the arrow component are fixedly provided on the grating rotating frame
It is overlapped with the center line of the protractor, and the arrow direction of the arrow component is far from the yaw side of the rasterizer
To, and the angle panel parallel with the protractor.Such setting, so that being read to the angle index on protractor more square
Just.
Technical solution provided in an embodiment of the present invention has the benefit that
1, positioning pedestal provided in an embodiment of the present invention, by the pedestal fixed along horizontal datum level, and along with
The vertical vertical reference line of the horizontal datum slidably adjusts, the slide adjustment mechanism of horizontal specification on the base, can
The origin reference location in machine locating process in horizontal plane is realized, since slide adjustment mechanism can freely slide tune on the base
Whole, positioning operation is convenient, flexible, and locating speed is fast, and can also ensure setting accuracy, therefore improves positioning effect first
Rate；
2, it in addition, in the case where being mounted with other angles positioning device in slide adjustment mechanism, can further realize
The accurate positioning of angle；
3 also, due to positioning pedestal provided in an embodiment of the present invention and positioning device, reasonable in design, each composition
Part can be arranged by general connection type, carry out the disassembly and allotment of different components, strong applicability.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is positioning pedestal structural schematic diagram provided in an embodiment of the present invention；
Fig. 2 is the structural decomposition diagram of Fig. 1；
Fig. 3 is the structural exploded view of slide adjustment mechanism in positioning pedestal provided in an embodiment of the present invention；
Fig. 4 is positioning device structure schematic diagram provided in an embodiment of the present invention；
Fig. 5 is the structural decomposition diagram of Fig. 4；
Fig. 6 is the positioning device structure schematic diagram under preferred embodiment provided in an embodiment of the present invention.
Description of symbols:
1- pedestal, 11- fix component, 12- horizontal adjusting bolt, 2- slide adjustment mechanism, 21- sliding rail part, 22- sliding
Part, 23- sliding adjustment bolt, 24- block piece, 241- groove, 242- fixing bolt, the fixed cover board of 3-, 4- angle positioning device,
41- protractor, 42- grating rotating frame, 421- tilting adjuster, 422- arrow component, 43- rasterizer, 431- yaw,
432- grating switch, 5- track
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
It should be noted that present invention description as described on the directions such as " X-axis ", " Y-axis " is all based on side shown in the drawings
The contextual definition of position or position, it is merely for convenience of description of the present invention and simplification of the description, rather than described in indication or suggestion
Device must be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In the description of the present invention,
The meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it can be electrical connection, be also possible to communicate to connect；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.It, can the side of being connected through a screw thread for installation, fixation or fixed mode
Formula, welding manner or other modes.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
Concrete meaning in the present invention.
Positioning pedestal provided in an embodiment of the present invention passes through the pedestal fixed along horizontal datum level, and edge and institute
State the vertical vertical reference line of horizontal datum slidably adjust, the slide adjustment mechanism of horizontal specification on the base, Neng Goushi
Origin reference location in existing machine locating process in horizontal plane, and other angles positioning device is mounted in slide adjustment mechanism
In the case where, the accurate positioning of angle can be further realized.Since slide adjustment mechanism can be slided freely on the base
Adjustment, positioning operation is convenient, flexible, high-efficient, and can also ensure setting accuracy, is particularly suitable for being related to tracks positioned
In a variety of machinery positioning scenes of (such as impact test vehicle location).
Combined with specific embodiments below and attached drawing, it elaborates to positioning pedestal provided in an embodiment of the present invention.
Fig. 1 is positioning pedestal structural schematic diagram provided in an embodiment of the present invention.Fig. 2 is the structural decomposition diagram of Fig. 1.
As depicted in figs. 1 and 2, positioning pedestal provided in an embodiment of the present invention includes pedestal 1 and slide adjustment mechanism 2, base
Seat 1 is fixed along horizontal datum level, and slide adjustment mechanism 2 is horizontally fixed on pedestal 1, and along vertical with horizontal datum
Vertical reference line slidably adjusts.For ease of description, in embodiments of the present invention, horizontal datum and vertical reference line difference
It is indicated with the X-axis of reference axis and Y-axis.
Preferably, 1 lower part of pedestal, which is equipped with, fixes component 11, there are in the case where positioning track in such as impact test, is somebody's turn to do
Component 11 is fixed to be used to fix along X-axis and positioning track.Such set-up mode, so that pedestal both fix tightly on positioning track
Gu and easy for installation.It is further preferred that fix component 11 be with the matched protrusion of positioning track, i.e., it is recessed according to positioning track
The specific structure of slot, the protrusion for fixing component 11 can carry out accordingly matching setting, as long as it can be fastened in positioning rail along X-axis
Road.The bulge-structure set-up mode for fixing component 11, further improves the convenience of operation.
Additionally preferably, multiple horizontal adjusting bolts 12 are equipped in the marginal position of pedestal 1, in a preferred embodiment, point
One horizontal adjusting bolt 12 is set not at four arms of angle of pedestal 1, for carrying out horizontal adjustment to pedestal 1, pedestal 1 is made to exist
The positioning of X-direction is more stable.
Preferably, slide adjustment mechanism 2 includes sliding rail part 21 and sliding part 22, and the center line of sliding rail part 21 is fixed along Y-axis
On the base 2, sliding part 22 on sliding rail part 21 along Y-axis slidably.It should be noted that slide adjustment mechanism 2 can also adopt
With any possible other structures in the prior art, as long as it can be realized disclosed above-mentioned sliding adjustment function i.e.
It can.
Fig. 3 is the structural exploded view of slide adjustment mechanism in positioning pedestal provided in an embodiment of the present invention.Preferably, it slides
Adjustment mechanism 2 further includes sliding adjustment bolt 23, and sliding adjustment bolt 23 passes through the centre bore of sliding part 22, for realizing sliding
Adjustment mechanism 2 positions adjustment in the sliding of Y-axis, is not only conveniently adjusted, but also can be adjusted with small scale, and positioning accuracy is high.In addition
Preferably, the both ends of slide adjustment mechanism 2 are equipped with block piece 24, so that sliding part 22 is limited in sliding, energy in sliding rail part 21
When enough avoiding carrying out sliding adjustment, sliding part falls off from sliding rail part, further improves the stability of device.Further preferably
Ground, block piece 24 are equipped with the groove 241 passed through for sliding adjustment bolt 23, also can be set into and pass through for sliding adjustment bolt 23
Threaded hole, any possible other shapes structure in the prior art also can be set into, as long as its be able to achieve for sliding adjust
Bolt 23 passes through and can make to slide the function that adjustment bolt 23 implements accessible adjustment, and the embodiment of the present invention is specific to its
Structure is not limited especially, even if such setting so that in the presence of block piece 24, also can be conveniently by cunning
Dynamic adjustment bolt 23 adjusts the sliding of sliding part 22 in sliding rail part 21.By fixing bolt 242 the two of slide adjustment mechanism 2
Block piece 24 is fixed on sliding rail part 21 by end, it is preferable that the quantity of fixing bolt 242 is 4, distinguishes position when being fixed two-by-two
The two sides of proximal edge are leaned in block piece 24, so that sliding positioning adjustment of the sliding adjustment bolt 23 in restriction stroke is more stable.
It should be noted that block piece provided in an embodiment of the present invention is not in addition to using the above structure, departing from inventive concept of the present invention
In the case of, it can also be using any possible structure, the embodiment of the present invention do not limit it especially in the prior art.
Fig. 4 is positioning device structure schematic diagram provided in an embodiment of the present invention.Fig. 5 is the structural decomposition diagram of Fig. 4.
The embodiment of the invention also provides a kind of positioning devices, as shown in Figure 4 and Figure 5, provided in an embodiment of the present invention fixed
Position device includes above-mentioned positioning pedestal, and angle positioning device 4 is equipped with above positioning pedestal.Preferably, in slidable adjustment
Cover board 3 is fixed above device 2, and angle positioning device 4 is mounted on cover board 3.Here, angle positioning device can be using amount
Angle device, rasterizer and grating rotating part corollary equipment, laser locating apparatus (including laser orientation instru-ment, Laser Line Marker, laser water
Level etc.) etc..One or more threaded holes are set on cover board 3, in order to 4 disassembly and replacement of angle positioning device.
Fig. 6 is the positioning device structure schematic diagram under preferred embodiment provided in an embodiment of the present invention, this is also shown
The working condition of positioning device progress mechanical angle positioning.As shown in fig. 6, the angle positioning device 4 in positioning device includes amount
Angle device 41, grating rotating frame 42 and the rasterizer 43 set on grating rotating frame 42, protractor 41 are installed in slide adjustment mechanism 2
On, grating rotating frame 42 is located on protractor 41.Rasterizer 43 has yaw 431 and grating switch 432, when needing to measure
Grating switch 432 is opened, measurement finishes closing.Grating rotating frame 42 has tilting adjuster 421, passes through tilting adjuster 421
Yaw 431 can be tilted upward or be adjusted downwards.According to the specific needs such as impact test, grating rotating frame 42 can be selected
Small-sized grating rotating frame.It is arranged through this structure, both having improved can only be using traditional positioning side such as setting-out, angle calculation
The locating speed of method, and can ensure positioning accuracy, having better solved existing scheme positioning, time-consuming, the technology of low efficiency is asked
Topic.
Preferably, arrow component 422, the center line of arrow component 422 are fixedly provided on grating rotating frame 42
It is overlapped with the center line of protractor 41, and yaw 431 direction of the arrow direction of arrow component 422 far from rasterizer 43,
And it is parallel with the angle panel of protractor 41 (dial of angle).The setting of arrow component 422, so as to protractor 41
On angle index read it is more convenient, it is preferred that arrow component 422 can be set into it is (such as bright with conspicuous color
Yellow) components, as arrow component 422 specific structure be arranged (for example, avoiding if necessary and indicator head
Part surrounding components interfere, and the subsequent support arm in arrow component arrow portion is arranged to bending structure), the present invention is real
It applies example not limit it especially, as long as it is able to achieve above-mentioned function.
Illustratively, when carrying out the positioning of impact test vehicle placement angle, the course of work of above-mentioned positioning device is as follows:
By the fixing of the pedestal 1 of positioning device in impact test equipment rail 5 and vehicle impact testing equipment traction rail
Road specific gratings pedestal is connected with angle grating, and vehicle impact testing equipment traction track specific gratings pedestal is stuck in collision
In testing equipment track, the horizontal position of pedestal 1 is adjusted, and grating rotating frame 42, rasterizer 43 are passed through according to test demand
And protractor 41 adjusts required angle, then by the laser harness of the test vehicle center line tested and rasterizer 43
It is vertical.
It is worth noting that, step 101 establishes the process of metadatabase, other than the mode described in the above-mentioned steps, also
It can realize that the process, the embodiment of the present invention are not limited specific mode by other means.
It should be understood that positioning pedestal provided by the above embodiment and positioning device are implementing auxiliary positioning or positioning
When, only the example of the division of the above functional modules, in practical application, it can according to need and divide above-mentioned function
With being completed by different functional modules, i.e., the internal structure of device is divided into different functional modules, to complete above description
All or part of function.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.
In conclusion the embodiment of the present invention compared with prior art, has the advantages that
1, positioning pedestal provided in an embodiment of the present invention, by the pedestal fixed along horizontal datum level, and along with
The vertical vertical reference line of the horizontal datum slidably adjusts, the slide adjustment mechanism of horizontal specification on the base, can
The origin reference location in machine locating process in horizontal plane is realized, since slide adjustment mechanism can freely slide tune on the base
Whole, positioning operation is convenient, flexible, high-efficient, and can also ensure setting accuracy；
2, it in addition, in the case where being mounted with other angles positioning device in slide adjustment mechanism, can further realize
The accurate positioning of angle；
3 also, due to positioning pedestal provided in an embodiment of the present invention and positioning device, reasonable in design, each composition
Part can be arranged by general connection type, carry out the disassembly and allotment of different components, strong applicability.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
Although the preferred embodiment in the embodiment of the present application has been described, once a person skilled in the art knows
Basic creative concept, then additional changes and modifications may be made to these embodiments.So appended claims are intended to explain
Being includes preferred embodiment and all change and modification for falling into range in the embodiment of the present application.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of positioning pedestal, which is characterized in that including pedestal and slide adjustment mechanism, the pedestal is along horizontal datum level
Fixed, the slide adjustment mechanism is horizontally fixed on the pedestal, and along the vertical reference vertical with the horizontal datum
Line slidably adjusts.
2. positioning pedestal according to claim 1, which is characterized in that the slide adjustment mechanism includes sliding rail part and sliding
The center line of part, the sliding rail part is fixed on the pedestal along the vertical reference line, and the sliding part is in the sliding rail part
On along the vertical reference line slidably.
3. positioning pedestal according to claim 2, which is characterized in that the slide adjustment mechanism further includes sliding adjustment spiral shell
Bolt, the sliding adjustment bolt pass through the centre bore of the sliding part.
4. positioning pedestal according to claim 3, which is characterized in that the both ends of the slide adjustment mechanism are equipped with blocking
Part, so that the sliding part is limited in sliding in the sliding rail part.
5. positioning pedestal according to claim 4, which is characterized in that the block piece, which is equipped with, supplies the sliding adjustment bolt
The threaded hole or groove passed through.
6. positioning pedestal according to any one of claims 1 to 5, which is characterized in that the pedestal lower part is equipped with holding division
Part, the fixing component are used to fix along the horizontal datum and positioning track.
7. positioning pedestal according to claim 6, which is characterized in that the fixing component is to match with the positioning track
Protrusion, and/or, the pedestal marginal position be equipped with multiple horizontal adjusting bolts.
8. a kind of positioning device, which is characterized in that including positioning pedestal according to any one of claims 1 to 7, described
Angle positioning device is installed above positioning pedestal.
9. positioning device according to claim 8, which is characterized in that the angle positioning device includes protractor, grating
Swivel mount and rasterizer set on the grating rotating frame, the protractor is installed in the slide adjustment mechanism, described
Grating rotating is erected on the protractor.
10. positioning device according to claim 9, which is characterized in that be fixedly provided with indicator on the grating rotating frame
The center line of head part, the arrow component is overlapped with the center line of the protractor, and the arrow component
Yaw direction of the arrow direction far from the rasterizer, and the angle panel parallel with the protractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487926.2A CN109406169A (en) | 2018-12-06 | 2018-12-06 | A kind of positioning pedestal and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487926.2A CN109406169A (en) | 2018-12-06 | 2018-12-06 | A kind of positioning pedestal and positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109406169A true CN109406169A (en) | 2019-03-01 |
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ID=65457532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811487926.2A Pending CN109406169A (en) | 2018-12-06 | 2018-12-06 | A kind of positioning pedestal and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109406169A (en) |
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