CN107818590A - Free form surface product reverse-engineering based on three-dimensional optical scanning models forming method - Google Patents
Free form surface product reverse-engineering based on three-dimensional optical scanning models forming method Download PDFInfo
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- CN107818590A CN107818590A CN201710809694.7A CN201710809694A CN107818590A CN 107818590 A CN107818590 A CN 107818590A CN 201710809694 A CN201710809694 A CN 201710809694A CN 107818590 A CN107818590 A CN 107818590A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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Abstract
The invention discloses the free form surface product reverse-engineering scanned based on three-dimensional optical to model forming method, including overscanning, reverse modeling, quality analysis, rapid shaping prints final threedimensional model, pass through the positive and negative binding mark point in free form surface product, simultaneously by setting rotating disk, the integrality of scanning and accuracy are realized using the auxiliary sticking point on rotating disk, it is easy to scan the overall picture of more curved face products using non-contact 3-D optical scanner, speed, after reverse modeling, using Geomagic Qualify softwares by the reverse model and step of acquisition（2）The 3D that cloud data carries out sampled point compares, and by analyzing contrast situation, cloud data or reverse modeling threedimensional model that constantly amendment scans, ensure that the quality of the product of output, improves operating efficiency, product quality rework rate is low, saves the printing of consumptive material.
Description
Technical field
The present invention relates to rapid shaping technique field, more particularly to the free form surface product based on three-dimensional optical scanning is reverse
Engineering Modeling forming method.
Background technology
The reverse Engineering Technology duplication applied to product at present, imitated, improvement and innovative design, are to absorb advanced technology
With the important support means for shortening the product design and development cycle, it is widely used in the neck such as machinery, aviation, automobile, medical treatment, art
Domain.
The cloud data of generally use contact type scanning device scan free form surface product in the prior art, but so speed
Spend slow, and need to measure many points, could approximate fits free form surface product curve.Use in the prior art in addition
Generally it is exactly the positive and negative millet cake cloud of direct scanning free form surface product when Non-contacting optical scanning instrument scans free form surface product
Data, one comes that scanning accuracy is not high, integrity degree is inadequate, and two, which so easily cause the later stage, imports the cloud data of scanning
In Geomagic studio softwares during reconstruction model, split precision is not high, and feature in kind can not be reacted after reverse modeling, is led
Cause reverse modeling failure.
In addition in the prior art, just directly printed after mostly just completing reverse modeling, cause the 3D solid after printing
Had a long way to go with scanning entity, it is important the reason for precision is inadequate when being data scanning, Another reason is without matter after reverse modeling
Amount contrast or quality versus only correct by artificial observation, cause workload big, and operating efficiency is low, and rework rate is high, waste printing consumption
Material.
Based on above reason, the applicant proposes that a kind of free form surface product reverse-engineering based on three-dimensional optical scanning is built
Mold forming method.
The content of the invention
Technical problem to be solved of the embodiment of the present invention is, there is provided the free form surface product based on three-dimensional optical scanning
Reverse-engineering model forming method, can improve free form surface product reverse modeling data scanning it is complete and accurate, repeatedly repair
Positive reverse modeling quality, improve the high quality of output of products.
In order to solve the above-mentioned technical problem, the embodiments of the invention provide the free form surface product scanned based on three-dimensional optical
Reverse-engineering models forming method, comprises the following steps：
（1）Scan pre-treatment：Rotating disk is set below free form surface product, binding mark point on free form surface product surface, together
When auxiliary magnet is pasted on rotating disk；
（2）Scanning collection：3-D scanning and measurement are carried out to free form surface product using three-dimensional optical scanner, obtain point cloud number
According to；
（3）Reverse warping：The cloud data of acquisition is handled and converted, reverse warping, builds physical model, including it is as follows
Step：
（3a）Reconstruction model：By step（2）The cloud data that middle scanning obtains exports as .asc formatted files, by .asc forms text
Part, which is imported into Geomagic studio softwares, carries out reconstruction model, and processing obtains .stl formatted files；
（3b）Reverse modeling：By step（3a）Processing obtains .stl formatted files and imported into Geomagic studio softwares
In CATIA softwares or in UG softwares, sampled point is obtained by structure line, reverse modeling is carried out using sampled point；
（4）Quality analysis：By step（3b）The reverse model and step of middle acquisition（2）Cloud data utilizes Geomagic
Qualify softwares carry out 3D comparisons, draw Quality Analysis Report；
（5）Rapid shaping：The threedimensional model of free form surface product is inputted into 3D printer, carries out beating for free form surface product
Print.
The method of the present invention is applied to the reverse modeling rapid shaping of free form surface product, passes through scanning, reverse modeling, matter
Amount analysis, rapid shaping print final threedimensional model, and method of the invention is not only glued in the positive and negative of free form surface product
Labelling point, while by setting rotating disk, the integrality of scanning and accuracy are realized using the auxiliary sticking point on rotating disk, together
When be easy to scan the overall pictures of more curved face products, speed, single width when scanning using non-contact 3-D optical scanner
Measure breadth, measurement accuracy is higher, single measurement breadth is bigger, strong antijamming capability, influenceed by testee surface light and shade it is small,
Simultaneously after reverse modeling, using Geomagic Qualify softwares by the reverse model and step of acquisition（2）Cloud data is carried out
The 3D of sampled point compares, and by analyzing contrast situation, cloud data or reverse modeling threedimensional model that constantly amendment scans, ensures
The quality of the product of output, improves operating efficiency, product quality rework rate is low, saves the printing of consumptive material.
It is further preferred that the three-dimensional optical scanner is non-contact 3-D optical scanner.
In embodiments of the present invention, the step（2）Specifically include following steps：
（2a）Positive data scans：Start three-dimensional optical scanner, adjust measurement distance, identify the positive mark of free form surface product
Remember point, preserve cloud data；
（2b）Several positive data scannings：Rotatably mounted curved face product positive direction, is scanned again, and scanning can be automatic after completing
The cloud data for scanning to obtain with a upper width is spliced, and refresh scan information, increases new measurement data；
（2c）Aid in spot scan：Free form surface product is overturn to 90 °, scanning rotation plate auxiliary magnet, preserves auxiliary magnet cloud data；
（2d）Negative data scans：Spot scan free form surface product reverse side is aided in by rotating disk, identifies free form surface product reverse side
Mark point, preserve cloud data；
（2e）Several data scannings of reverse side：Rotatably mounted curved face product reverse side direction, is scanned again, and scanning can be automatic after completing
The cloud data for scanning to obtain with a upper width is spliced, and refresh scan information, increases new measurement data.
The embodiment of the present invention carries out the preceding place of the i.e. more curved face products of testee first in three-dimensional optical data scanning
Reason, i.e., by setting rotating disk, binding mark point and aid mark point, it is ready for next step data acquisition, next, which is carried out, sweeps
Retouch planning, improve scan efficiency, that is, more curved face products that anglec of rotation scanning is tested according to a certain direction when scanning, repeatedly
Scan and ensure that each width scan image and a upper width have identical mark point, ensure that the precision of splicing, while negative data
During scanning, using the auxiliary magnet on rotating disk, the mark point of tested more curved face product reverse side is identified, ensure that tested more curved surfaces
The scanning of product reverse side is completely and accurate, reflects the feature of material object.
To above-mentioned steps（2）Further optimization, the step（2b）With（2e）It is suitable to be rotated in one direction during scanning
Angle scanning, each width scan image and a upper width have same tag point more than at least five.
Further, the step（2b）With（2e）To rotate 15 ° of scannings every time in one direction during scanning.
The embodiment of the present invention scan when according to a certain direction every time rotate 15 ° be scanned, each width scan image with
A upper width has same tag point more than at least five, just can guarantee that the precision of splicing.
The embodiment of the present invention is further to step（3）It is described in detail, the step（3a）Reconstruction model includes de-noising
Sound, uniform sampling, encapsulation, filling, plane is created, straight line and point feature is created, snaps to the overall situation, processing obtains .stl forms text
Part.
The step（3b）Reverse modeling includes fitting, trimming, thickeies entity, completes the reverse three-dimensional of free form surface product
Moulding.
More than being based on, the embodiment of the present invention is further, the step（4）Quality analysis idiographic flow is：
（4a）By step（2）The cloud data of the free form surface product of middle scanning collection establishes georeferencing coordinate system；
（4b）By step（3b）The sampled point on threedimensional model after the completion of middle reverse modeling establishes spatial entities coordinate system；
（4c）By the spatial entities coordinate system after reverse modeling compared with the georeferencing coordinate system of cloud data, draw partially
Difference；
（4d）As deviation >=0.1mm or≤- 0.1mm, cloud data or/and reverse modeling threedimensional model are corrected, is repeated（4a）
~（4d）, until during -0.1mm ＜ deviation ＜ 0.1mm, reverse modeling threedimensional model is qualified.
After reverse modeling of the embodiment of the present invention, using Geomagic Qualify softwares by the reverse model and step of acquisition
（2）The 3D that cloud data carries out sampled point compares, i.e., by step（2）The cloud data of the free form surface product of middle scanning collection is built
Vertical georeferencing coordinate system（PX、PY、PZ）, step（3b）Sampled point on threedimensional model after the completion of middle reverse modeling is established empty
Between entities coordinate system（SX、SY、SZ）, by the spatial entities coordinate system and the georeferencing coordinate system of cloud data after reverse modeling
It is compared, must deviates；As deviation >=0.1mm or≤- 0.1mm, cloud data or/and reverse modeling three-dimensional mould are corrected
Type, repeat（4a）~（4d）, until during -0.1mm ＜ deviation ＜ 0.1mm, reverse modeling threedimensional model is qualified.Contrasted by analyzing
The cloud data or reverse modeling threedimensional model of situation, constantly amendment scanning, ensure that the quality of the product of output, improve work
Make efficiency, product quality rework rate is low, saves the consumptive material of printing.
The embodiment of the present invention is applied to the reverse modeling rapid shaping of free form surface product, and the embodiment of the present invention is in three-dimensional light
When learning data scanning, carry out the pre-treatment of the i.e. more curved face products of testee first, i.e., by setting rotating disk, binding mark point and
Aid mark point, it is ready for next step data acquisition, next carries out scanning planning, improves scan efficiency, that is, when scanning
The tested more curved face products of anglec of rotation scanning, Multiple-Scan simultaneously ensure each width scan image and upper one according to a certain direction
Width has identical mark point, ensure that the precision of splicing, while during negative data scanning, utilizes the auxiliary magnet on rotating disk, identification
The mark point of tested more curved face product reverse side, it ensure that the scanning of tested more curved face product reverse side is completely and accurate, reflection
Go out the feature of material object.15 ° are rotated during scanning every time according to a certain direction to be scanned, each width scan image has with a upper width
Same tag point more than at least five, just can guarantee that the precision of splicing.During scanning using non-contact 3-D optical scanner very
Easily scan the overall picture of more curved face products, speed, single width measurement breadth, measurement accuracy are higher, single measurement breadth more
Greatly, strong antijamming capability, is influenceed small by testee surface light and shade, after reverse modeling, utilizes Geomagic Qualify softwares
By the reverse model and step of acquisition（2）The 3D that cloud data carries out sampled point compares, i.e., by step（2）Middle scanning collection from
Georeferencing coordinate system is established by the cloud data of curved face product（PX、PY、PZ）, step（3b）Three after the completion of middle reverse modeling
Sampled point on dimension module establishes spatial entities coordinate system（SX、SY、SZ）, by the spatial entities coordinate system and point after reverse modeling
The georeferencing coordinate system of cloud data is compared, and must be deviated；As deviation >=0.1mm or≤- 0.1mm, adjusting point cloud number
According to or/and reverse modeling threedimensional model, repeat（4a）~（4d）, until during -0.1mm ＜ deviation ＜ 0.1mm, reverse modeling is three-dimensional
Model is qualified.By analyzing contrast situation, cloud data or reverse modeling threedimensional model that constantly amendment scans, output ensure that
Product quality, improve operating efficiency, product quality rework rate is low, saves the consumptive material of printing.Energy of the embodiment of the present invention
High-precision completion free form surface product reverse modeling shaping within a short period of time, improve the Creative Design Ability of enterprise.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is that the free form surface product reverse-engineering provided by the invention based on three-dimensional optical scanning models forming method stream
Journey block diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
The method of the present invention is applied to the reverse modeling rapid shaping of free form surface product, passes through scanning, reverse modeling, matter
Amount analysis, rapid shaping print final threedimensional model, and method of the invention is not only glued in the positive and negative of free form surface product
Labelling point, while by setting rotating disk, the integrality of scanning and accuracy are realized using the auxiliary sticking point on rotating disk, together
When be easy to scan the overall pictures of more curved face products, speed, single width when scanning using non-contact 3-D optical scanner
Measure breadth, measurement accuracy is higher, single measurement breadth is bigger, strong antijamming capability, influenceed by testee surface light and shade it is small,
Simultaneously after reverse modeling, using Geomagic Qualify softwares by the reverse model and step of acquisition（2）Cloud data is carried out
The 3D of sampled point compares, and by analyzing contrast situation, cloud data or reverse modeling threedimensional model that constantly amendment scans, ensures
The quality of the product of output, improves operating efficiency, product quality rework rate is low, saves the printing of consumptive material.
Referring to Fig. 1, shaping is modeled for the free form surface product reverse-engineering provided by the invention based on three-dimensional optical scanning
Method flow block diagram；As shown in figure 1, the embodiment of the present invention comprises the following steps：
（1）Scan pre-treatment：Rotating disk is set below free form surface product, binding mark point on free form surface product surface, together
When auxiliary magnet is pasted on rotating disk；
（2）Scanning collection：3-D scanning and measurement are carried out to free form surface product using three-dimensional optical scanner, obtain point cloud number
According to；
（3）Reverse warping：The cloud data of acquisition is handled and converted, reverse warping, builds physical model, including it is as follows
Step：
（3a）Reconstruction model：By step（2）The cloud data that middle scanning obtains exports as .asc formatted files, by .asc forms text
Part, which is imported into Geomagic studio softwares, carries out reconstruction model, and processing obtains .stl formatted files；
（3b）Reverse modeling：By step（3a）Processing obtains .stl formatted files and imported into Geomagic studio softwares
In CATIA softwares or in UG softwares, sampled point is obtained by structure line, reverse modeling is carried out using sampled point；
（4）Quality analysis：By step（3b）The reverse model and step of middle acquisition（2）Cloud data utilizes Geomagic
Qualify softwares carry out 3D comparisons, draw Quality Analysis Report；
（5）Rapid shaping：The threedimensional model of free form surface product is inputted into 3D printer, carries out beating for free form surface product
Print.
In the method for the invention, using non-contact 3-D optical scanner, because using non-contact 3-D optics
Scanner is easy to scan the overall picture of more curved face products, and speed, single width measurement breadth, measurement accuracy are higher, single is surveyed
It is bigger to measure breadth, strong antijamming capability, is influenceed by testee surface light and shade small.In step（1）It is middle to need to tested freely bent
Face product is scanned pre-treatment, i.e. the positive and negative binding mark point in free form surface product, while by setting rotating disk, simultaneously
Auxiliary magnet is pasted on rotating disk, so can improve the integrality of scanning and accuracy using the auxiliary sticking point on rotating disk,
Realize automatic splicing in scanning process.
Now to step（2）Scanning collection is described in detail, the step（2）Specifically include following steps：
（2a）Positive data scans：Start three-dimensional optical scanner, adjust measurement distance, identify the positive mark of free form surface product
Remember point, preserve cloud data；
（2b）Several positive data scannings：Rotatably mounted curved face product positive direction, is scanned again, and scanning can be automatic after completing
The cloud data for scanning to obtain with a upper width is spliced, and refresh scan information, increases new measurement data；
（2c）Aid in spot scan：Free form surface product is overturn to 90 °, scanning rotation plate auxiliary magnet, preserves auxiliary magnet cloud data；
（2d）Negative data scans：Spot scan free form surface product reverse side is aided in by rotating disk, identifies free form surface product reverse side
Mark point, preserve cloud data；
（2e）Several data scannings of reverse side：Rotatably mounted curved face product reverse side direction, is scanned again, and scanning can be automatic after completing
The cloud data for scanning to obtain with a upper width is spliced, and refresh scan information, increases new measurement data.
To above-mentioned steps（2）Further optimization, the step（2b）With（2e）It is suitable to be rotated in one direction during scanning
Angle scanning, each width scan image and a upper width have same tag point more than at least five.The step（2b）With（2e）
To rotate 15 ° of scannings every time in one direction during scanning.
The embodiment of the present invention carries out the preceding place of the i.e. more curved face products of testee first in three-dimensional optical data scanning
Reason, i.e., by setting rotating disk, binding mark point and aid mark point, it is ready for next step data acquisition, next, which is carried out, sweeps
Retouch planning, improve scan efficiency, that is, more curved face products that anglec of rotation scanning is tested according to a certain direction when scanning, repeatedly
Scan and ensure that each width scan image and a upper width have identical mark point, ensure that the precision of splicing, while negative data
During scanning, using the auxiliary magnet on rotating disk, the mark point of tested more curved face product reverse side is identified, ensure that tested more curved surfaces
The scanning of product reverse side is completely and accurate, reflects the feature of material object.The embodiment of the present invention is every according to a certain direction when scanning
Secondary 15 ° of rotation is scanned, and each width scan image has same tag point more than at least five with a upper width, just can guarantee that spelling
The precision connect.
Step described in the embodiment of the present invention（3a）Reconstruction model is flat including noiseless, uniform sampling, encapsulation, filling, establishment
Face, create straight line and point feature, snap to the overall situation, processing obtains .stl formatted files.
The step（3b）Reverse modeling includes fitting, trimming, thickeies entity, completes the reverse three-dimensional of free form surface product
Moulding.
For the quality of product after raising reverse modeling, reverse modeling operating efficiency is improved, reduces the defect rate of printed product,
The embodiment of the present invention is needed after reverse modeling by step（3b）The reverse model and step of middle acquisition（2）Cloud data utilizes
Geomagic Qualify softwares carry out 3D comparisons, draw Quality Analysis Report, the step（4）Quality analysis idiographic flow
For：
（4a）By step（2）The cloud data of the free form surface product of middle scanning collection establishes georeferencing coordinate system；
（4b）By step（3b）The sampled point on threedimensional model after the completion of middle reverse modeling establishes spatial entities coordinate system；
（4c）By the spatial entities coordinate system after reverse modeling compared with the georeferencing coordinate system of cloud data, draw partially
Difference；
（4d）As deviation >=0.1mm or≤- 0.1mm, cloud data or/and reverse modeling threedimensional model are corrected, is repeated（4a）
~（4d）, until during -0.1mm ＜ deviation ＜ 0.1mm, reverse modeling threedimensional model is qualified.
After reverse modeling of the embodiment of the present invention, using Geomagic Qualify softwares by the reverse model and step of acquisition
（2）The 3D that cloud data carries out sampled point compares, i.e., by step（2）The cloud data of the free form surface product of middle scanning collection is built
Vertical georeferencing coordinate system（PX、PY、PZ）, step（3b）Sampled point on threedimensional model after the completion of middle reverse modeling is established empty
Between entities coordinate system（SX、SY、SZ）, by the spatial entities coordinate system and the georeferencing coordinate system of cloud data after reverse modeling
It is compared, must deviates；As deviation >=0.1mm or≤- 0.1mm, cloud data or/and reverse modeling three-dimensional mould are corrected
Type, repeat（4a）~（4d）, until during -0.1mm ＜ deviation ＜ 0.1mm, reverse modeling threedimensional model is qualified.Contrasted by analyzing
The cloud data or reverse modeling threedimensional model of situation, constantly amendment scanning, ensure that the quality of the product of output, improve work
Make efficiency, product quality rework rate is low, saves the consumptive material of printing.
The embodiment of the present invention is applied to the reverse modeling rapid shaping of free form surface product, and the embodiment of the present invention is in three-dimensional light
When learning data scanning, carry out the pre-treatment of the i.e. more curved face products of testee first, i.e., by setting rotating disk, binding mark point and
Aid mark point, it is ready for next step data acquisition, next carries out scanning planning, improves scan efficiency, that is, when scanning
The tested more curved face products of anglec of rotation scanning, Multiple-Scan simultaneously ensure each width scan image and upper one according to a certain direction
Width has identical mark point, ensure that the precision of splicing, while during negative data scanning, utilizes the auxiliary magnet on rotating disk, identification
The mark point of tested more curved face product reverse side, it ensure that the scanning of tested more curved face product reverse side is completely and accurate, reflection
Go out the feature of material object.15 ° are rotated during scanning every time according to a certain direction to be scanned, each width scan image has with a upper width
Same tag point more than at least five, just can guarantee that the precision of splicing.During scanning using non-contact 3-D optical scanner very
Easily scan the overall picture of more curved face products, speed, single width measurement breadth, measurement accuracy are higher, single measurement breadth more
Greatly, strong antijamming capability, is influenceed small by testee surface light and shade, after reverse modeling, utilizes Geomagic Qualify softwares
By the reverse model and step of acquisition（2）The 3D that cloud data carries out sampled point compares, i.e., by step（2）Middle scanning collection from
Georeferencing coordinate system is established by the cloud data of curved face product（PX、PY、PZ）, step（3b）Three after the completion of middle reverse modeling
Sampled point on dimension module establishes spatial entities coordinate system（SX、SY、SZ）, by the spatial entities coordinate system and point after reverse modeling
The georeferencing coordinate system of cloud data is compared, and must be deviated；As deviation >=0.1mm or≤- 0.1mm, adjusting point cloud number
According to or/and reverse modeling threedimensional model, repeat（4a）~（4d）, until during -0.1mm ＜ deviation ＜ 0.1mm, reverse modeling is three-dimensional
Model is qualified.By analyzing contrast situation, cloud data or reverse modeling threedimensional model that constantly amendment scans, output ensure that
Product quality, improve operating efficiency, product quality rework rate is low, saves the consumptive material of printing.Energy of the embodiment of the present invention
High-precision completion free form surface product reverse modeling shaping within a short period of time, improve the Creative Design Ability of enterprise.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (7)
1. a kind of free form surface product reverse-engineering based on three-dimensional optical scanning models forming method, it is characterised in that including
Following steps：
Scan pre-treatment：Rotating disk is set below free form surface product, binding mark point on free form surface product surface, while
Auxiliary magnet is pasted on rotating disk；
Scanning collection：3-D scanning and measurement are carried out to free form surface product using three-dimensional optical scanner, obtain cloud data；
Reverse warping：The cloud data of acquisition is handled and converted, reverse warping, builds physical model, including following step
Suddenly：
（3a）Reconstruction model：By step（2）The cloud data that middle scanning obtains exports as .asc formatted files, by .asc forms text
Part, which is imported into Geomagic studio softwares, carries out reconstruction model, and processing obtains .stl formatted files；
（3b）Reverse modeling：By step（3a）Processing obtains .stl formatted files and imported into Geomagic studio softwares
In CATIA softwares or in UG softwares, sampled point is obtained by structure line, reverse modeling is carried out using sampled point；
Quality analysis：By step（3b）The reverse model and step of middle acquisition（2）Cloud data utilizes Geomagic Qualify
Software carries out 3D comparisons, draws Quality Analysis Report；
Rapid shaping：The threedimensional model of free form surface product is inputted into 3D printer, carries out the printing of free form surface product.
2. the free form surface product reverse-engineering according to claim 1 based on three-dimensional optical scanning models forming method,
Characterized in that, the three-dimensional optical scanner is non-contact 3-D optical scanner.
3. the free form surface product reverse-engineering according to claim 2 based on three-dimensional optical scanning models forming method,
Characterized in that, the step（2）Specifically include following steps：
（2a）Positive data scans：Start three-dimensional optical scanner, adjust measurement distance, identify the positive mark of free form surface product
Remember point, preserve cloud data；
（2b）Several positive data scannings：Rotatably mounted curved face product positive direction, is scanned again, and scanning can be automatic after completing
The cloud data for scanning to obtain with a upper width is spliced, and refresh scan information, increases new measurement data；
（2c）Aid in spot scan：Free form surface product is overturn to 90 °, scanning rotation plate auxiliary magnet, preserves auxiliary magnet cloud data；
（2d）Negative data scans：Spot scan free form surface product reverse side is aided in by rotating disk, identifies free form surface product reverse side
Mark point, preserve cloud data；
（2e）Several data scannings of reverse side：Rotatably mounted curved face product reverse side direction, is scanned again, and scanning can be automatic after completing
The cloud data for scanning to obtain with a upper width is spliced, and refresh scan information, increases new measurement data.
4. the free form surface product reverse-engineering according to claim 3 based on three-dimensional optical scanning models forming method,
Characterized in that, the step（2b）With（2e）For suitable angle scanning, each width scanning are rotated during scanning in one direction
Image has same tag point more than at least five with a upper width.
5. the free form surface product reverse-engineering according to claim 4 based on three-dimensional optical scanning models forming method,
Characterized in that, the step（2b）With（2e）To rotate 15 ° of scannings every time in one direction during scanning.
6. the free form surface product reverse-engineering based on three-dimensional optical scanning according to claim 3 or 4 or 5 models shaping
Method, it is characterised in that
The step（3a）Reconstruction model includes noiseless, uniform sampling, encapsulation, filling, establishment plane, establishment straight line and Dian Te
Levy, snap to the overall situation, processing obtains .stl formatted files；
The step（3b）Reverse modeling includes fitting, trimming, thickeies entity, and the reverse three-dimensional for completing free form surface product is made
Type.
7. the free form surface product reverse-engineering according to claim 6 based on three-dimensional optical scanning models forming method,
Characterized in that, the step（4）Quality analysis idiographic flow is：
（4a）By step（2）The cloud data of the free form surface product of middle scanning collection establishes georeferencing coordinate system；
（4b）By step（3b）The sampled point on threedimensional model after the completion of middle reverse modeling establishes spatial entities coordinate system；
（4c）By the spatial entities coordinate system after reverse modeling compared with the georeferencing coordinate system of cloud data, draw partially
Difference；
（4d）As deviation >=0.1mm or≤- 0.1mm, cloud data or/and reverse modeling threedimensional model are corrected, is repeated（4a）
~（4d）, until during -0.1mm ＜ deviation ＜ 0.1mm, reverse modeling threedimensional model is qualified.
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| CN109461183A (en) * | 2018-10-23 | 2019-03-12 | 沙洲职业工学院 | A kind of method of space coordinate point and point cloud location point Three Dimensional Contrast |
| CN109712241A (en) * | 2018-12-17 | 2019-05-03 | 长沙矿山研究院有限责任公司 | A kind of method for building up of the three-dimensional mine physical model comprising goaf |
| CN109816788A (en) * | 2019-01-17 | 2019-05-28 | 中国公路工程咨询集团有限公司 | A kind of three-dimensional geological object model method based on three-dimensional laser point cloud data |
| CN109858076A (en) * | 2018-12-17 | 2019-06-07 | 长沙矿山研究院有限责任公司 | A kind of modeling and analysis methods of mine worked-out section |
| CN110660127A (en) * | 2019-09-23 | 2020-01-07 | 宁夏农林科学院枸杞工程技术研究所 | Method for constructing wolfberry fruit phenotype group database based on three-dimensional point cloud scanning technology |
| CN110853132A (en) * | 2019-10-09 | 2020-02-28 | 安徽徽博先临三维云打印技术有限公司 | Three-dimensional modeling method for complex curved surface part for 3D printing |
| CN111397536A (en) * | 2020-05-20 | 2020-07-10 | 西北核技术研究院 | Three-dimensional contour measuring method for penetration bullet hole of large-size reinforced concrete target plate |
| CN111489331A (en) * | 2020-03-25 | 2020-08-04 | 和超高装(中山)科技有限公司 | Virtual frequency switching method for superconducting cavity |
| CN111737796A (en) * | 2020-06-10 | 2020-10-02 | 南京英尼格玛工业自动化技术有限公司 | Reverse reconstruction method for high-speed rail sleeper beam process hole |
| CN111814558A (en) * | 2020-06-10 | 2020-10-23 | 深圳市美鸣齿科技术有限公司 | Method, system, equipment and medium for measuring precision of 3D printing molded tooth model |
| CN111859577A (en) * | 2020-07-27 | 2020-10-30 | 江苏科技大学 | Direct layering method for laser additive repair |
| CN111859708A (en) * | 2020-07-31 | 2020-10-30 | 沈阳航空制造有限公司 | Modeling method based on airplane structural part digital twin model |
| CN111950154A (en) * | 2020-08-14 | 2020-11-17 | 昆山同日工业自动化有限公司 | Industrial three-dimensional scanning reverse modeling detection system based on 5G communication |
| CN112231850A (en) * | 2020-08-04 | 2021-01-15 | 沈阳工业大学 | RE-based gear failure part feature reconstruction method |
| WO2021062696A1 (en) * | 2019-09-30 | 2021-04-08 | 西门子股份公司 | Element reproduction method, device, and system |
| CN113409464A (en) * | 2021-06-15 | 2021-09-17 | 中国科学院近代物理研究所 | Method for reversely mapping electrode part of cyclotron |
| CN114082988A (en) * | 2021-10-28 | 2022-02-25 | 浙江意动科技股份有限公司 | Method for repairing aero-engine cold and hot end blade |
| CN114322761A (en) * | 2021-12-16 | 2022-04-12 | 东风汽车集团股份有限公司 | Mark point coordinate measuring method and system and deformation amount measuring method and system |
| CN114543730A (en) * | 2022-01-18 | 2022-05-27 | 华南理工大学 | Sink mark depth measuring method based on reverse engineering |
| CN115742344A (en) * | 2022-11-15 | 2023-03-07 | 江西洪都航空工业集团有限责任公司 | Forming method of certain type of capping part based on reverse engineering and 3D printing technology |
| CN115908182A (en) * | 2022-11-25 | 2023-04-04 | 哈尔滨鑫润工业有限公司 | Mold abrasion repairing method based on digital model |
| CN115934983A (en) * | 2023-01-09 | 2023-04-07 | 南京维拓科技股份有限公司 | Method for displaying three-dimensional model difference based on Boolean operation |
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| CN109461183A (en) * | 2018-10-23 | 2019-03-12 | 沙洲职业工学院 | A kind of method of space coordinate point and point cloud location point Three Dimensional Contrast |
| CN109712241A (en) * | 2018-12-17 | 2019-05-03 | 长沙矿山研究院有限责任公司 | A kind of method for building up of the three-dimensional mine physical model comprising goaf |
| CN109858076A (en) * | 2018-12-17 | 2019-06-07 | 长沙矿山研究院有限责任公司 | A kind of modeling and analysis methods of mine worked-out section |
| CN109816788A (en) * | 2019-01-17 | 2019-05-28 | 中国公路工程咨询集团有限公司 | A kind of three-dimensional geological object model method based on three-dimensional laser point cloud data |
| CN110660127A (en) * | 2019-09-23 | 2020-01-07 | 宁夏农林科学院枸杞工程技术研究所 | Method for constructing wolfberry fruit phenotype group database based on three-dimensional point cloud scanning technology |
| CN110660127B (en) * | 2019-09-23 | 2023-10-27 | 宁夏农林科学院枸杞工程技术研究所 | Method for constructing medlar fruit phenotype group database based on three-dimensional point cloud scanning technology |
| WO2021062696A1 (en) * | 2019-09-30 | 2021-04-08 | 西门子股份公司 | Element reproduction method, device, and system |
| CN110853132A (en) * | 2019-10-09 | 2020-02-28 | 安徽徽博先临三维云打印技术有限公司 | Three-dimensional modeling method for complex curved surface part for 3D printing |
| CN110853132B (en) * | 2019-10-09 | 2023-08-08 | 安徽集萃信息技术有限公司 | Three-dimensional modeling method for 3D printed complex curved surface part |
| CN111489331A (en) * | 2020-03-25 | 2020-08-04 | 和超高装(中山)科技有限公司 | Virtual frequency switching method for superconducting cavity |
| CN111489331B (en) * | 2020-03-25 | 2022-03-22 | 和超高装(中山)科技有限公司 | Virtual frequency switching method for superconducting cavity |
| CN111397536B (en) * | 2020-05-20 | 2021-05-04 | 西北核技术研究院 | Three-dimensional contour measuring method for penetration bullet hole of large-size reinforced concrete target plate |
| CN111397536A (en) * | 2020-05-20 | 2020-07-10 | 西北核技术研究院 | Three-dimensional contour measuring method for penetration bullet hole of large-size reinforced concrete target plate |
| CN111737796A (en) * | 2020-06-10 | 2020-10-02 | 南京英尼格玛工业自动化技术有限公司 | Reverse reconstruction method for high-speed rail sleeper beam process hole |
| CN111814558A (en) * | 2020-06-10 | 2020-10-23 | 深圳市美鸣齿科技术有限公司 | Method, system, equipment and medium for measuring precision of 3D printing molded tooth model |
| WO2021248650A1 (en) * | 2020-06-10 | 2021-12-16 | 南京英尼格玛工业自动化技术有限公司 | Reverse reconstruction method for high-speed rail sleeper beam process hole |
| CN111859577A (en) * | 2020-07-27 | 2020-10-30 | 江苏科技大学 | Direct layering method for laser additive repair |
| CN111859708A (en) * | 2020-07-31 | 2020-10-30 | 沈阳航空制造有限公司 | Modeling method based on airplane structural part digital twin model |
| CN112231850A (en) * | 2020-08-04 | 2021-01-15 | 沈阳工业大学 | RE-based gear failure part feature reconstruction method |
| CN111950154A (en) * | 2020-08-14 | 2020-11-17 | 昆山同日工业自动化有限公司 | Industrial three-dimensional scanning reverse modeling detection system based on 5G communication |
| CN113409464A (en) * | 2021-06-15 | 2021-09-17 | 中国科学院近代物理研究所 | Method for reversely mapping electrode part of cyclotron |
| CN114082988A (en) * | 2021-10-28 | 2022-02-25 | 浙江意动科技股份有限公司 | Method for repairing aero-engine cold and hot end blade |
| CN114322761A (en) * | 2021-12-16 | 2022-04-12 | 东风汽车集团股份有限公司 | Mark point coordinate measuring method and system and deformation amount measuring method and system |
| CN114543730A (en) * | 2022-01-18 | 2022-05-27 | 华南理工大学 | Sink mark depth measuring method based on reverse engineering |
| CN115742344A (en) * | 2022-11-15 | 2023-03-07 | 江西洪都航空工业集团有限责任公司 | Forming method of certain type of capping part based on reverse engineering and 3D printing technology |
| CN115908182A (en) * | 2022-11-25 | 2023-04-04 | 哈尔滨鑫润工业有限公司 | Mold abrasion repairing method based on digital model |
| CN115908182B (en) * | 2022-11-25 | 2023-12-29 | 哈尔滨鑫润工业有限公司 | Mold abrasion repairing method based on digital model |
| CN115934983A (en) * | 2023-01-09 | 2023-04-07 | 南京维拓科技股份有限公司 | Method for displaying three-dimensional model difference based on Boolean operation |
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