CN208125052U - A kind of spatial digitizer calibrating installation - Google Patents
A kind of spatial digitizer calibrating installation Download PDFInfo
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- CN208125052U CN208125052U CN201721732026.0U CN201721732026U CN208125052U CN 208125052 U CN208125052 U CN 208125052U CN 201721732026 U CN201721732026 U CN 201721732026U CN 208125052 U CN208125052 U CN 208125052U
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- standard ball
- bottom plate
- standard
- ontology
- spatial digitizer
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Abstract
The utility model discloses a kind of spatial digitizer calibrating installations, and including the bottom plate standard ball different with multiple groups diameter, standard ball described in every group includes the identical standard ball ontology of two diameters, and standard ball described in each group is arranged on the bottom plate.Spatial digitizer calibrating installation provided by the utility model, by the way that the different standard ball of multiple groups diameter is arranged on bottom plate, since the standard ball of different-diameter corresponds to the scanner of different ranges, so when carrying out the calibration of scanner of different ranges, the standard ball measurement that scanner need to only be corresponded to different-diameter on calibrating installation, considerably increases the application range of scanner range.The utility model structure is simple, and using effect is good, use easy to spread.
Description
Technical field
The utility model relates to 3-D scanning technical fields, more specifically to a kind of spatial digitizer calibrating installation.
Background technique
The purposes of optical three-dimensional scanning instrument is the point cloud for creating object geometric jacquard patterning unit surface, these points can be used to interpolation into object
Surface shape, more intensive point cloud can create more accurate model, can be further if scanner can obtain surface color
It is pasted on the surface of reconstruction, forms colored model.
Scanner needs first to be calibrated before scanning, and the calibration method of major producer is mentioned with producer both at home and abroad at present
The ball of confession is used as standard away from rule, is scanned instrument and scans to form model, then is measured with software to model.The standard used
Device is made of 9 groups of standard balls, using ceramics, steel etc. have diffuse-reflective material made of sphere be fixed on marble or
On the matts material such as aluminum board, the ball of every group of ball is away from the distance design required according to standard method.The circularity of each sphere is less than 2
μm, ball is traceable to three coordinate measuring machine away from distance three coordinate measuring engine measurement.Although the precision of coordinate machine can achieve (2~
3) μm, and scanner general precision in 0.01mm or more, coordinate machine can measure ball carpenters square cun and sphere size, but this side
Method has some limitations in the application, is in particular in：
The batch production of domestic this standard not yet, including agent and according to the range of oneself sale instrument into
Row has the ball of one group or multiple groups made to order away from rule, and which results in the scanners that this kind of standard can only be practically applicable to certain range, do not have
There is versatility.
Utility model content
In order to overcome the deficiencies of the prior art, the utility model provides a kind of spatial digitizer calibrating installation, improves measurement essence
Degree increases the application range of scanner range.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of spatial digitizer calibrating installation, including the bottom plate standard ball different with multiple groups diameter, standard ball described in every group
It include the identical standard ball ontology of two diameters, standard ball described in each group is arranged on the bottom plate.
Preferably, two of standard ball described in the every group standard ball ontologies are denoted as the first standard ball ontology and second respectively
Upper table of the centre of sphere of standard ball ontology, the centre of sphere of the first standard ball ontology and the second standard ball ontology to the bottom plate
The distance in face is identical.
Preferably, the centre of sphere of the centre of sphere of the first standard ball ontology or the second standard ball ontology is to the bottom plate
The distance of upper surface is 1-50 millimeters.
Preferably, the diameter of the standard ball ontology is 1-100 millimeters, and the circularity of the standard ball ontology is 0.5-5 μm.
Preferably, the bottom plate is axially symmetric structure, the line of centres of two standard ball ontologies of standard ball described in each group
It is parallel to each other, and two standard ball ontologies of standard ball described in each group are about the symmetry axis symmetry arrangement of the bottom plate.
Preferably, standard ball described in each group is successively arranged along the symmetry axis of the bottom plate；Or in the symmetrical of the bottom plate
The standard ball ontology of every side of axis, standard ball described in each group is staggered about the axis perpendicular with the symmetry axis.
Preferably, the standard ball is connect with the bottom plate using carbon fiber board or metal plate connects.
Preferably, the standard ball uses matt material, and the material of the bottom plate is carbon fiber.
Preferably, the center of the bottom plate is equipped with the connecting hole for fixed triangle frame.
Preferably, the connecting hole is threaded hole.
The utility model has the beneficial effects that：By the way that the different standard ball of multiple groups diameter is arranged on bottom plate, due to difference
The standard ball of diameter corresponds to the scanner of different ranges, so need to will only scan when carrying out the calibration of scanner of different ranges
Instrument corresponds to the standard ball measurement of different-diameter on calibrating installation, considerably increases the application range of scanner range.This reality
Simple with new structure, using effect is good, use easy to spread.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment one of the spatial digitizer calibrating installation of the utility model.
Fig. 2 is the structural schematic diagram of the embodiment two of the spatial digitizer calibrating installation of the utility model.
Wherein：1- standard ball, 2- threaded hole, 3- bottom plate, 4- carbon fiber board.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment one
It is different with multiple groups diameter to please refer to attached drawing 1, a kind of spatial digitizer calibrating installation of the present embodiment, including bottom plate 3
Standard ball 1, standard ball 1 described in every group includes identical 1 ontology of standard ball of two diameters, and standard ball 1 described in each group is all provided with
It sets on the bottom plate 3.
Spatial digitizer calibrating installation based on above-mentioned technical characteristic, it is different by the way that multiple groups diameter is arranged on bottom plate 3
Standard ball 1, by the way that the different standard ball 1 of multiple groups diameter is arranged on bottom plate 3, due to the corresponding not same amount of the standard ball of different-diameter
The scanner of journey, so need to only be corresponded to scanner different straight on calibrating installation when carrying out the calibration of scanner of different ranges
The standard ball of diameter measures, and considerably increases the application range of scanner range.The utility model structure is simple, using effect
It is good, use easy to spread.
In the present embodiment, the bottom plate 3 is axially symmetric structure, and the center of the bottom plate 3 is equipped with for fixed triangle frame
Connecting hole, the connecting hole are threaded hole 2.Preferably, the threaded hole 2 is the threaded hole 2 of G3/8.The threaded hole 2 is set,
It is measured for the calibration of scanner device to be fixed on tripod.It can be rotated due to being threadedly coupled, so using
Threaded connection can guarantee that the calibration of scanner device rotates 360 °, and guarantee measurement accuracy.
In the present embodiment, the standard ball ontology of two of standard ball 1 described in every group is denoted as the first standard ball ontology respectively
With the second standard ball ontology, the centre of sphere of the centre of sphere of the first standard ball ontology and the second standard ball ontology to the bottom plate
The distance of 3 upper surface is identical, and distance is 1-50 millimeters.During actual fabrication, the center of the standard ball 1 should use up can
It can be close to the upper surface of the bottom plate 3, to guarantee the connective stability of the standard ball 1.
In the present embodiment, the diameter of the standard ball ontology is 1-100 millimeters, and the circularity of the standard ball ontology is 0.5-
5μm.During actual fabrication, the diameter for the standard ball 1 being arranged on the bottom plate 3 be can be set according to actual needs
The standard ball 1 of different-diameter, but have to guarantee the circularity of the standard ball 1, the circularity of the standard ball 1 according to
The production of VDI/VDE2634-2 and VDI/VDE 2634-3 standard.
In the present embodiment, the bottom plate 3 is axially symmetric structure, in two standard ball ontologies of standard ball 1 described in each group
Heart line is parallel to each other, and two standard ball ontologies of standard ball 1 described in each group are arranged about the symmetrical axial symmetry of the bottom plate 3
Cloth, standard ball 1 described in each group are successively arranged along the symmetry axis of the bottom plate 3；Or the bottom plate 3 symmetry axis it is each
The standard ball ontology of side, standard ball 1 described in each group is staggered about the axis perpendicular with the symmetry axis.
In the present embodiment, the standard ball 1 is connect with the bottom plate 3 using carbon fiber board 4 or metal plate connects.In reality
In the manufacturing process of border, the relatively large standard ball 1 of diameter is connect with the bottom plate 3 using carbon fiber board 4, guarantees connecting
It will not influence the circularity of the standard ball 1 in the process；And the relatively small standard ball 1 of diameter uses gold with the bottom plate 3
Belong to plate connection.
In the present embodiment, the standard ball 1 uses matt material, preferably, the standard ball 1 uses matt ceramic material
Matter.The material of the bottom plate 3 is carbon fiber.Standard used in currently available technology, is generally used with diffusing reflection
Sphere made of material, this sphere need to spray imaging agent in precision standard ball surface in use, this has resulted in surface
According to its uniformity coefficient, the thick layer of (3~6) μm is had, this layer of imaging agent can generate error to the measurement of scanning, influence to measure
Precision.And the present embodiment does not have to not only spray one layer of imaging agent again in measurement process using the standard ball 1 of matt ceramic material, keeps away
Exempt from measurement error caused by spraying the thick layer that one layer of imaging agent generates, improves measurement accuracy.Meanwhile matt ceramic material
Thermal expansion coefficient it is smaller, under the influence of temperature change using this material the standard deformation it is small, make measurement tie
Fruit is more stable.Carbon fiber has lesser thermal expansion coefficient, and the bottom plate 3 of this material is used under the influence of temperature change
Deformation it is small, keep measurement result more stable.
In the present embodiment, the standard ball 1 is 5 groups, the ball of the standard ball ontology of two of every group of the standard ball 1
2/3 of full scale away from the scanner for range corresponding to this group of standard ball 1.The outer diameter of standard ball 1 described in 5 groups is respectively 15 millis
Rice, 20 millimeters, 25.4 millimeters, 30 and 38.1 millimeters of φ.During making standard ball 1, the circularity of the standard ball 1
It is made according to VDI/VDE 2634-2 and VDI/VDE 2634-3 standard, circularity is less than or equal to 1.5 microns.Simultaneously as
The outer diameter of the standard ball 1 is relatively large, so using carbon fiber board 4 will when the standard ball 1 is fixed on the bottom plate 3
The standard ball and the bottom plate 3 are fixed, to guarantee that the standard in use will not be because of 4 shadow of carbon fiber board
The stability of whole device is rung, the carbon fiber board 4 uses carbon fibre materials identical with the bottom plate 3.In addition, in order to guarantee
The stability that the standard ball 1 is connect with the bottom plate 3, and will not fall off during transportation, the center of the standard ball 1
It should be as close possible to the bottom plate 3, preferably, the height of the center of the standard ball 1 and the bottom plate 3 is not more than 10 millimeters.
Embodiment two
Please refer to attached drawing 2, this implementation and embodiment one the difference is that the standard ball 1 is 4 groups, in addition, standard ball 1
There is also differences with embodiment one for the arrangement mode of size and every group of standard ball 1.
In the present embodiment, the standard ball 1 is 4 groups, the ball of the standard ball ontology of two of every group of the standard ball 1
2/3 of full scale away from the scanner for range corresponding to this group of standard ball 1.The outer diameter of standard ball 1 described in 4 groups is respectively 4 millis
Rice, 8 millimeters, 10 millimeters and 12.7 millimeters.During making standard ball 1, the circularity of the standard ball 1 is according to VDI/
The production of VDE2634-2 and VDI/VDE 2634-3 standard, circularity are less than or equal to 1.0 microns.Simultaneously as the standard ball
1 is relatively small, so using metal plate by the standard ball 1 and the bottom when standard ball 1 is fixed on the bottom plate 3
Plate 3 is fixed.In addition, in order to guarantee stability that the standard ball 1 is connect with the bottom plate 3, and during transportation will not
It falls off, the center of the standard ball 1 should be as close possible to the bottom plate 3, preferably, the center of the standard ball 1 and the bottom
The height of plate 3 is not more than 5 millimeters.
It should be pointed out that the standard ball 1 of the spatial digitizer calibrating installation is to manufacture to check and accept mark according to Germany
What quasi- VDI/VDE 2634-2 and VDI/VDE 2634-3 was manufactured and checked and accepted, the corresponding range of the standard ball 1 is also to press
It is determined according to this standard.The calibration method of the spatial digitizer calibrating installation and the at present domestic calibration method for using standard
Almost the same, unique difference is exactly not have to spray one layer of imaging agent in standard ball, but directly measure.
The present embodiment and the other structures of embodiment one and corresponding effect are all the same, and details are not described herein again.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (9)
1. a kind of spatial digitizer calibrating installation, it is characterised in that：Including the bottom plate standard ball different with multiple groups diameter, every group of institute
Stating standard ball includes the identical standard ball ontology of two diameters, and standard ball described in each group is arranged on the bottom plate；
The diameter of the standard ball ontology is 1-100 millimeters, and the circularity of the standard ball ontology is 0.5-5 μm.
2. spatial digitizer calibrating installation as described in claim 1, it is characterised in that：Described in two of standard ball described in every group
Standard ball ontology is denoted as the first standard ball ontology and the second standard ball ontology, the centre of sphere of the first standard ball ontology and institute respectively
The distance for stating the centre of sphere to the upper surface of the bottom plate of the second standard ball ontology is identical.
3. spatial digitizer calibrating installation as claimed in claim 2, it is characterised in that：The centre of sphere of the first standard ball ontology
Or the distance of upper surface of the centre of sphere of the second standard ball ontology to the bottom plate is 1-50 millimeters.
4. spatial digitizer calibrating installation as described in claim 1, it is characterised in that：The bottom plate is axially symmetric structure, respectively
The line of centres of two standard ball ontologies of the group standard ball is parallel to each other, and two standard ball sheets of standard ball described in each group
Body is about the symmetry axis symmetry arrangement of the bottom plate.
5. spatial digitizer calibrating installation according to claim 4, which is characterized in that standard ball described in each group is along the bottom
The symmetry axis of plate is successively arranged；Or every side of the symmetry axis in the bottom plate, the standard ball ontology of standard ball described in each group
It is staggered about the axis perpendicular with the symmetry axis.
6. spatial digitizer calibrating installation as described in claim 1, it is characterised in that：The standard ball and the bottom plate use
Carbon fiber board connection or metal plate connection.
7. spatial digitizer calibrating installation as described in claim 1, it is characterised in that：The standard ball uses matt material,
The material of the bottom plate is carbon fiber.
8. such as the described in any item spatial digitizer calibrating installations of claim 1-7, it is characterised in that：The center of the bottom plate is set
There is the connecting hole for fixed triangle frame.
9. spatial digitizer calibrating installation as claimed in claim 8, it is characterised in that：The connecting hole is threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732026.0U CN208125052U (en) | 2017-12-11 | 2017-12-11 | A kind of spatial digitizer calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732026.0U CN208125052U (en) | 2017-12-11 | 2017-12-11 | A kind of spatial digitizer calibrating installation |
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| CN208125052U true CN208125052U (en) | 2018-11-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345866A (en) * | 2019-06-03 | 2019-10-18 | 武汉中观自动化科技有限公司 | A kind of measuring device and method for hand held scanner gaging hole |
| CN112797914A (en) * | 2020-12-22 | 2021-05-14 | 上海精密计量测试研究所 | Calibration method for optical profile scanner |
| CN116973885A (en) * | 2023-09-22 | 2023-10-31 | 巨硕精密机械(常熟)有限公司 | Carbon fiber reference system for laser radar |
-
2017
- 2017-12-11 CN CN201721732026.0U patent/CN208125052U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345866A (en) * | 2019-06-03 | 2019-10-18 | 武汉中观自动化科技有限公司 | A kind of measuring device and method for hand held scanner gaging hole |
| CN110345866B (en) * | 2019-06-03 | 2021-05-07 | 武汉中观自动化科技有限公司 | Measuring device and method for hole measurement of handheld scanner |
| CN112797914A (en) * | 2020-12-22 | 2021-05-14 | 上海精密计量测试研究所 | Calibration method for optical profile scanner |
| CN116973885A (en) * | 2023-09-22 | 2023-10-31 | 巨硕精密机械(常熟)有限公司 | Carbon fiber reference system for laser radar |
| CN116973885B (en) * | 2023-09-22 | 2024-01-16 | 巨硕精密机械(常熟)有限公司 | Carbon fiber reference system for laser radar |
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Address after: No. 8 Qishan Road, Shiqi Town, Panyu District, Guangzhou City, Guangdong Province, 510000, 150 Patentee after: Radio and TV Measurement and Testing Group Co.,Ltd. Patentee after: GRG METROLOGY & TEST (SHENYANG) CO.,LTD. Address before: 510630 Xiping Road, Whampoa Road, Tianhe District, Guangzhou, Guangdong 163 Patentee before: GUANGZHOU GRG METROLOGY & TEST Co.,Ltd. Patentee before: GRG METROLOGY & TEST (SHENYANG) CO.,LTD. |