CN208140042U - A kind of standard component for three-dimensional white light scanning equipment - Google Patents
A kind of standard component for three-dimensional white light scanning equipment Download PDFInfo
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- CN208140042U CN208140042U CN201820659953.2U CN201820659953U CN208140042U CN 208140042 U CN208140042 U CN 208140042U CN 201820659953 U CN201820659953 U CN 201820659953U CN 208140042 U CN208140042 U CN 208140042U
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Abstract
The utility model discloses a kind of standard components for three-dimensional white light scanning equipment, there is standard flat on the standard component, the first V-groove and the second V-groove are additionally provided on the standard flat, respectively close to the both ends of standard component, line, that is, standard component length direction of the intersection with the standard component both ends on the intersection and the second V-groove on the first V-groove between two cell walls between two cell walls be mutually perpendicular to for first V-groove and the second V-groove.By the above-mentioned means, the utility model can verify the three-dimensional existing precision of white light scanning equipment, and can be with compensation campaign mechanism bring deviation.
Description
Technical field
The utility model relates to three-dimensional parameters to demarcate field, more particularly to a kind of mark for three-dimensional white light scanning equipment
Quasi- part.
Background technique
Three-dimensional white light scanning equipment is mainly to scan the three-dimensional coordinate point set for measuring surface in kind, obtained a large amount of coordinate points
Collection be collectively referred to as a cloud.The data that three-dimensional white light scanning equipment measures are three-dimensional space point clouds, are one group and contain tri- coordinates of XYZ
The polymerization of point；Therefore, three-dimensional white light scanning equipment belongs to 3-D scanning, need to carry out the spatial dimension of 3-D scanning calibration and
Verification, and original calibration mode only demarcates plane and height, and the movement mechanism in equipment can not be demarcated together,
Stated accuracy is low.
The angle measurement of gauge head is less than 25 ° in three-dimensional white light scanning equipment, the depth of field again smaller than 10mm, have measure angle it is small,
The small characteristic of the depth of field, so traditional standard ball cannot use come the method demarcated, because the standard ball data measured is too
It is small, less than 1/5, it is not enough to demarcate and verify.And the method for traditional gauge block calibration, due to two tested faces of gauge block and amount
Survey direction be it is vertical, also can not with existing equipment by result measure come.
In conclusion three-dimensional white light line scanning device, which needs one, can demarcate its three-dimensional space scan data
Standard component.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of standard component for three-dimensional white light scanning equipment, energy
It is enough that the three-dimensional existing precision of white light scanning equipment is verified, and can be with compensation campaign mechanism bring deviation.
In order to solve the above technical problems, the technical solution that the utility model uses is：It provides a kind of for three-dimensional white
The standard component of optical scanning device has standard flat on the standard component, and the first V-groove and the are additionally provided on the standard flat
The both ends of two V-grooves, the first V-groove and the second V-groove respectively close to standard component, friendship on the first V-groove between two cell walls
Line, that is, standard component length direction phase of the line with the intersection on the second V-groove between two cell walls with the standard component both ends
It is mutually vertical.
Preferably, on the angle and second V-groove on first V-groove between two cell walls between two cell walls
Angle be 130 °~180 °.
Preferably, the flatness of the standard flat is less than or equal to 0.009mm.
Preferably, on the standard flat between first V-groove and second V-groove equal portions be distributed with several
Three V-grooves, the distance between the first V-groove third V-groove adjacent thereto, the 2nd V type groove third V-groove adjacent thereto
The distance between equal being equidistant between any two with third V-groove.
Preferably, first V-groove is identical with second V-groove；The third V-groove and first V-groove
It is identical；The distance of the third V-groove between any two is 10mm.
Preferably, the distance between first V-groove and second V-groove are 200mm, first V-groove
Groove depth and the groove depth of second V-groove are 1mm~5mm.
The utility model has the beneficial effects that：The utility model can do school to the three-dimensional existing precision of white light scanning equipment
It tests, and can be with compensation campaign mechanism bring deviation；Its structure is simple, easy to use, and accuracy in measurement is high.
Detailed description of the invention
Fig. 1 is a kind of stereochemical structure of one preferred embodiment of standard component for three-dimensional white light scanning equipment of the utility model
Schematic diagram；
Fig. 2 is a kind of overlooking structure diagram of the standard component for three-dimensional white light scanning equipment of the utility model；
Fig. 3 is a kind of schematic view of the front view of the standard component for three-dimensional white light scanning equipment of the utility model；
Fig. 4 is the partial structurtes enlarged diagram at the A in Fig. 3；
Fig. 5 is a kind of stereochemical structure of another embodiment of standard component for three-dimensional white light scanning equipment of the utility model
Schematic diagram；
Fig. 6 is the schematic perspective view of the utility model three-dimensional white light scanning equipment.
The components in the drawings are labeled as follows：1, standard flat；2, the first V-groove；3, the second V-groove；4, third V-type
Slot；5, movement mechanism；6, measuring fixture；7, gauge head；8, measured object.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Fig. 1 to Fig. 6 is please referred to, the utility model embodiment includes：
Embodiment 1：A kind of standard component for three-dimensional white light scanning equipment, the standard component are in long strip type, are gone back on standard component
With the structure convenient for clamping, fixation；The standard flat 1 for being 0.001mm with flatness on the standard component, the standard flat
Be additionally provided with the first V-groove 2 and the second V-groove 3 on 1, the first V-groove 2 and the second V-groove 3 respectively close to standard component both ends,
Intersection on intersection and the second V-groove 3 on first V-groove 2 between two cell walls between two cell walls with the standard component
The line at both ends is mutually perpendicular to, and the direction where the line at standard component both ends is the length direction of standard component.
The distance between first V-groove 2 and second V-groove 3 are 200mm；Two in the first V type groove 2
Angle on angle and second V-groove 3 between cell wall between two cell walls is 150 °, so that two cell walls can be with
It is detected by the gauge head 7 of three-dimensional white light scanning equipment；Here included angle depends primarily on the sensor on gauge head 7, according to
The induction angle of sensor changes therewith, and is not limited.The groove depth of first V-groove 2 and second V-groove 3
Groove depth is 3mm, and groove depth here is also that can depend on sensor, so as to preferably detect the groove face data of V-groove.
First V-groove 2 and second V-groove 3 are identical；Certainly, the structure size of the first V-groove 2 can also be with the second V-groove
3 structure is different, this point is not limited；
Several the 3rd V are distributed in equal portions on standard flat 1 between first V-groove 2 and second V-groove 3
Type groove 4, the distance between the first V-groove 2 third V-groove 4 adjacent thereto, the second V-groove 3 third V-groove 4 adjacent thereto
The distance between equal being equidistant between any two with third V-groove 4.It, can be adapted to the calibration of different size of product
Select two V-grooves as spatial accuracy according to the physical length of product；It is of course also possible to standard component be lengthened, here to standard
The length of part is not limited, and the length of standard component mainly depends on the length with the product of actual measurement.The third V-groove 4
It is identical as first V-groove 2；Certainly, the structure size of third V-groove 4 can also be with the first V type groove 2, the second V-groove 3
Structure it is different, this point is not limited.The distance of the third V-groove 4 between any two is 10mm.But the third on standard component
V-groove 4 is not necessary, for the use for whether having third V-groove 4 to have no effect on standard component on standard component.
A kind of scaling method of three-dimensional white light scanning equipment, using above-mentioned standard part, method is as follows：
Standard component is mounted on the measuring fixture 6 of three-dimensional white light scanning equipment, runs three-dimensional white light scanning equipment, it is three-dimensional
The gauge head 7 of white light scanning equipment can scan one group of point cloud；The point cloud scanned distinguishes planar point cloud and V-type using software
Slot point cloud, and a cloud plane F is fitted using the mathematical algorithm of standard gaussian；
The flatness FD (the single-point repeatable accuracy for being equivalent to measurement equipment) of point cloud plane F is calculated, flatness FD is point cloud
The deviation range of all the points on plane F；For the data source of flatness FD in two deviations, one is in three-dimensional white light scanning equipment
The acquisition deviation of gauge head 7, the other is bounce deviation of the movement mechanism 5 in linear motion in three-dimensional white light scanning equipment, this
Two values are determined by the performance of equipment, are exactly the uncertainty of measurement equipment；When flatness FD is not in normal range,
It can all could be adjusted to make to put down by adjusting gauge head 7 or adjustment movement mechanism 5 in three-dimensional white light scanning equipment or both
Face degree FD meets the requirements；
Flatness FD is exactly that single-point visits touching error PF；
The intersection L1 of two cell walls on the first V-groove 2 is calculated, the intersection L2 of two cell walls on the second V-groove 3, amount are calculated
The distance between test cross line L1 and intersection L2 LE (spatial accuracy)；
Deviation E is the deviation of three-dimensional white light scanning equipment in the longitudinal direction, and the source of deviation E is straight on movement mechanism 5
The movement warp of line motor is the deviation of theory movement distance and actual motion distance；When deviation E is not in normal range
When, deviation E can be made to meet the requirements within the limits prescribed by adjusting the linear motor on movement mechanism 5；
Deviation E can be calculated according to the following formula：
E=| LE-LD |
Wherein, LD is the actual range on standard component between the first V-groove 2 and the second V-groove 3；
Combination precision according to the available three-dimensional white light scanning equipment of deviation E that single-point visits touching error PF and length direction
A, combination precision A can be calculated as follows：
A=PF+E*L/LD
Wherein, L is the length of measured object 8, and measured object 8 is exactly the three-dimensional white light scanning equipment actual product to be measured.Root
Measurement accuracy of the product of being measured in the three-dimensional white line scanning device can be calculated according to this formula.
Embodiment 2：A kind of standard component for three-dimensional white light scanning equipment, the standard component are in long strip type, are gone back on standard component
With the structure convenient for clamping, fixation；The standard flat 1 for being 0.009mm with flatness on the standard component, the standard flat
Be additionally provided with the first V-groove 2 and the second V-groove 3 on 1, the first V-groove 2 and the second V-groove 3 respectively close to standard component both ends,
Intersection on intersection and the second V-groove 3 on first V-groove 2 between two cell walls between two cell walls with the standard component
The line at both ends is mutually perpendicular to, and the direction where the line at standard component both ends is the length direction of standard component.
The distance between first V-groove 2 and second V-groove 3 are 200mm；Two in the first V type groove 2
Angle on angle and second V-groove 3 between cell wall between two cell walls is 130 °, so that two cell walls can be with
It is detected by the gauge head 7 of three-dimensional white light scanning equipment；Here included angle depends primarily on the sensor on gauge head 7, according to
The induction angle of sensor changes therewith, and is not limited.The groove depth of first V-groove 2 and second V-groove 3
Groove depth is 5mm, and groove depth here is also that can depend on sensor, so as to preferably detect the groove face data of V-groove.
First V-groove 2 and second V-groove 3 are identical；Certainly, the structure size of the first V-groove 2 can also be with the second V-groove
3 structure is different, this point is not limited；
A kind of scaling method of three-dimensional white light scanning equipment, using above-mentioned standard part, method is as follows：
Standard component is mounted on the measuring fixture 6 of three-dimensional white light scanning equipment, runs three-dimensional white light scanning equipment, it is three-dimensional
The gauge head 7 of white light scanning equipment can scan one group of point cloud；The point cloud scanned distinguishes planar point cloud and V-type using software
Slot point cloud, and a cloud plane F is fitted using the mathematical algorithm of standard gaussian；
The flatness FD of point cloud plane F is calculated, flatness FD is the deviation range of all the points on point cloud plane F；Flatness
The data source of FD in two deviations, one be gauge head 7 in three-dimensional white light scanning equipment acquisition deviation, the other is three-dimensional white
Bounce deviation of the movement mechanism 5 in linear motion on optical scanning device, the two values are determined by the performance of equipment, are exactly measured
The uncertainty of measurement equipment；It, can be by adjusting in three-dimensional white light scanning equipment when flatness FD is not in normal range
Gauge head 7 or adjustment movement mechanism 5 or both all could be adjusted to that flatness FD is made to meet the requirements；
Flatness FD is exactly that single-point visits touching error PF；
The intersection L1 of two cell walls on the first V-groove 2 is calculated, the intersection L2 of two cell walls on the second V-groove 3, amount are calculated
The distance between test cross line L1 and intersection L2 LE；
Deviation E is the deviation of three-dimensional white light scanning equipment in the longitudinal direction, and the source of deviation E is straight on movement mechanism 5
The movement warp of line motor is the deviation of theory movement distance and actual motion distance；When deviation E is not in normal range
When, deviation E can be made to meet the requirements within the limits prescribed by adjusting the linear motor on movement mechanism 5；
Deviation E can be calculated according to the following formula：
E=| LE-LD |
Wherein, LD is the actual range on standard component between the first V-groove 2 and the second V-groove 3；
Combination precision according to the available three-dimensional white light scanning equipment of deviation E that single-point visits touching error PF and length direction
A, combination precision A can be calculated as follows：
A=PF+E*L/LD
Wherein, L is the length of measured object 8, and measured object 8 is exactly the three-dimensional white light scanning equipment actual product to be measured.Root
Measurement accuracy of the product of being measured in the three-dimensional white line scanning device can be calculated according to this formula.
Embodiment 3：A kind of standard component for three-dimensional white light scanning equipment, the standard component are in long strip type, are gone back on standard component
With the structure convenient for clamping, fixation；The standard flat 1 for being 0.005mm with flatness on the standard component, the standard flat
Be additionally provided with the first V-groove 2 and the second V-groove 3 on 1, the first V-groove 2 and the second V-groove 3 respectively close to standard component both ends,
Intersection on intersection and the second V-groove 3 on first V-groove 2 between two cell walls between two cell walls with the standard component
The line at both ends is mutually perpendicular to, and the direction where the line at standard component both ends is the length direction of standard component.
The distance between first V-groove 2 and second V-groove 3 are 200mm；Two in the first V type groove 2
Angle on angle and second V-groove 3 between cell wall between two cell walls is 170 °, so that two cell walls can be with
It is detected by the gauge head 7 of three-dimensional white light scanning equipment；Here included angle depends primarily on the sensor on gauge head 7, according to
The induction angle of sensor changes therewith, and is not limited.The groove depth of first V-groove 2 and second V-groove 3
Groove depth is 1mm, and groove depth here is also that can depend on sensor, so as to preferably detect the groove face data of V-groove.
First V-groove 2 and second V-groove 3 are identical；Certainly, the structure size of the first V-groove 2 can also be with the second V-groove
3 structure is different, this point is not limited；
Several the 3rd V are distributed in equal portions on standard flat 1 between first V-groove 2 and second V-groove 3
Type groove 4, the distance between the first V-groove 2 and third V-groove 4 adjacent thereto, the second V-groove 3 and the 3rd V adjacent thereto
The distance between type groove 4 being equidistant between any two with third V-groove 4.To be adapted to the mark of different size of product
It is fixed, two V-grooves can be selected as spatial accuracy according to the physical length of product；It is of course also possible to standard component is lengthened, it is right here
The length of standard component is not limited, and the length of standard component mainly depends on the length with the product of actual measurement.The third V-type
Slot 4 is identical as first V-groove 2；Certainly, the structure size of third V-groove 4 can also be with the first V type groove 2, the second V-type
The structure of slot 3 is different, this point is not limited.The distance of the third V-groove 4 between any two is 10mm.
A kind of scaling method of three-dimensional white light scanning equipment, using above-mentioned standard part, method is as follows：
Standard component is mounted on the measuring fixture 6 of three-dimensional white light scanning equipment, runs three-dimensional white light scanning equipment, it is three-dimensional
The gauge head 7 of white light scanning equipment can scan one group of point cloud；The point cloud scanned distinguishes planar point cloud and V-type using software
Slot point cloud, and a cloud plane F is fitted using the mathematical algorithm of standard gaussian；
The flatness FD of point cloud plane F is calculated, flatness FD is the deviation range of all the points on point cloud plane F；Flatness
The data source of FD in two deviations, one be gauge head 7 in three-dimensional white light scanning equipment acquisition deviation, the other is three-dimensional white
Bounce deviation of the movement mechanism 5 in linear motion on optical scanning device, the two values are determined by the performance of equipment, are exactly measured
The uncertainty of measurement equipment；It, can be by adjusting in three-dimensional white light scanning equipment when flatness FD is not in normal range
Gauge head 7 or adjustment movement mechanism 5 or both all could be adjusted to that flatness FD is made to meet the requirements；
Flatness FD is exactly that single-point visits touching error PF；
The intersection L1 of two cell walls on the first V-groove 2 is calculated, the intersection L2 of two cell walls on the second V-groove 3, amount are calculated
The distance between test cross line L1 and intersection L2 LE；
Deviation E is the deviation of three-dimensional white light scanning equipment in the longitudinal direction, and the source of deviation E is straight on movement mechanism 5
The movement warp of line motor is the deviation of theory movement distance and actual motion distance；When deviation E is not in normal range
When, deviation E can be made to meet the requirements within the limits prescribed by adjusting the linear motor on movement mechanism 5；
Deviation E can be calculated according to the following formula：
E=| LE-LD |
Wherein, LD is the actual range on standard component between the first V-groove 2 and the second V-groove 3；
Combination precision according to the available three-dimensional white light scanning equipment of deviation E that single-point visits touching error PF and length direction
A, combination precision A can be calculated as follows：
A=PF+E*L/LD
Wherein, L is the length of measured object 8, and measured object 8 is exactly the three-dimensional white light scanning equipment actual product to be measured.Root
Measurement accuracy of the product of being measured in the three-dimensional white line scanning device can be calculated according to this formula.
The utility model can verify the three-dimensional existing precision of white light scanning equipment, and can be with compensation campaign mechanism 5
Bring deviation；Its structure is simple, easy to use, and accuracy in measurement is high.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (6)
1. a kind of standard component for three-dimensional white light scanning equipment, it is characterised in that：There is standard flat on the standard component, it should
The first V-groove and the second V-groove are additionally provided on standard flat, the first V-groove and the second V-groove are respectively close to the two of standard component
End, intersection on the intersection and the second V-groove on the first V-groove between two cell walls between two cell walls with the standard component
Line, that is, standard component length direction at both ends is mutually perpendicular to.
2. a kind of standard component for three-dimensional white light scanning equipment according to claim 1, it is characterised in that：Described first
Angle on angle and second V-groove on V-groove between two cell walls between two cell walls is 130 °~180 °.
3. a kind of standard component for three-dimensional white light scanning equipment according to claim 1, it is characterised in that：The standard
The flatness of plane is less than or equal to 0.009mm.
4. a kind of standard component for three-dimensional white light scanning equipment according to claim 1 or 2 or 3, it is characterised in that：Institute
It states equal portions on the standard flat between the first V-groove and second V-groove and several third V-grooves, the first V-groove is distributed with
The distance between the distance between third V-groove adjacent thereto, the second V-groove third V-groove adjacent thereto with the 3rd V
Type groove being equidistant between any two.
5. a kind of standard component for three-dimensional white light scanning equipment according to claim 4, it is characterised in that：Described first
V-groove is identical with second V-groove；The third V-groove is identical as first V-groove；The third V-groove two-by-two it
Between distance be 10mm.
6. a kind of standard component for three-dimensional white light scanning equipment, feature described according to claim 1 or 2 or 3 or 5 exist
In：The distance between first V-groove and second V-groove are 200mm, the groove depth of first V-groove and described the
The groove depth of two V-grooves is 1mm~5mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210644A1 (en) * | 2018-05-04 | 2019-11-07 | 苏州玻色智能科技有限公司 | Standard component used for three-dimensional white light scanning device and calibration method therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210644A1 (en) * | 2018-05-04 | 2019-11-07 | 苏州玻色智能科技有限公司 | Standard component used for three-dimensional white light scanning device and calibration method therefor |
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