CN105423956B - Carbon fiber composite material vehicle body measuring device - Google Patents
Carbon fiber composite material vehicle body measuring device Download PDFInfo
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- CN105423956B CN105423956B CN201510864547.0A CN201510864547A CN105423956B CN 105423956 B CN105423956 B CN 105423956B CN 201510864547 A CN201510864547 A CN 201510864547A CN 105423956 B CN105423956 B CN 105423956B
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- laser
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- plane
- fixedly mounted
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- 239000002131 composite material Substances 0.000 title claims abstract description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract description 6
- 229920000049 Carbon (fiber) Polymers 0.000 title abstract description 5
- 239000004917 carbon fiber Substances 0.000 title abstract description 5
- 239000000758 substrate Substances 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- 239000000835 fiber Substances 0.000 claims description 18
- 238000003491 array Methods 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000037396 body weight Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/245—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses a carbon fiber composite material vehicle body measuring device which is composed of a working platform, four groups of same motion sensing units and a laser emission assembly; the laser emission assembly comprises a substrate, five lasers fixedly mounted above the substrate, three support legs fixedly mounted below the substrate and a ball arranged at the bottom end of each support leg. Laser axes emitted by the five lasers are positioned in the same plane, and the plane is parallel to a plane where a triangle formed by connecting the spherical centers of the three spheres is positioned; the four lasers are divided into two groups, laser axes emitted by the two lasers in each group are collinear, and two lines formed by the two groups of lasers are parallel. The measuring device has the advantages of simple structure, low price, low requirement on operators, high measuring precision and capability of completely replacing a three-coordinate measuring machine to measure the carbon fiber composite material car body with relatively large size.
Description
Technical field
The invention belongs to measurement apparatus technical field, and in particular to a kind of carbon fibre composite vehicle body measurement apparatus.
Background technology
The lightweight of body of a motor car, it is significant for reducing automobile energy consumption.Especially in new-energy automobile
Pure electric vehicle, in the case where current battery performance can not show a candle to people's will, on the premise of vehicle body security is ensured, reduce vehicle body
Weight, with more realistic meaning.BMW i3 has carried out taking the lead in attempting in this respect.The not modest BMW i3 of appearance, because adopting
With carbon fibre composite vehicle body, conduct oneself with dignity only 1224kg.
BMW i3 carbon fibre composite vehicle body is combined by some Carbon-fiber Reinforced Plastics Components, produces one
Carbon fibre composite vehicle body, first have to produce some Carbon-fiber Reinforced Plastics Components, then again by all carbon fiber composites
Material Component composition forms.And in production process, it is necessary to Carbon-fiber Reinforced Plastics Component appearance and size and carbon fibre composite
Vehicle body monnolithic case size measures.
Conventional three coordinate measuring machine, advanced technology, powerful, measurement accuracy is high, extensively should in scientific research, production
With, disclosure satisfy that many product design sizes measurement accuracy requirement.But technical sophistication, expensive, design and manufacture be present
Difficulty is big, requires the problems such as high, measurement efficiency is relatively low to operator, especially for the relatively large body of a motor car of appearance and size
For.
The content of the invention
It is an object of the invention to solve the above problems, there is provided a kind of carbon fiber composite simple in construction, cheap
Truck body measurement apparatus.
Realizing the technical scheme of above-mentioned purpose of the present invention is：A kind of carbon fibre composite vehicle body measurement apparatus, it be by
One workbench, four groups of identical motion-sensing units and Laser emission component are formed.
Every group of motion-sensing unit is by a linear motion unit, a grating and a PSD sensor array group
Into；The linear motion unit is made up of rectilinear orbit and the slide unit to be moved along a straight line along the rectilinear orbit；It is described
PSD sensor arrays are fixedly mounted on the slide unit, and each PSD sensor arrays are by several photosurfaces positioned at same
PSD sensor groups in plane into.
The position relationship of four PSD sensor arrays and the workbench meets following condition：When four straight lines
When slide unit on moving cell is moved along a straight line, the photosurface for four PSD sensor arrays being fixedly mounted on slide unit is swept
Cross the plane formed and four sides of a cube and the geometrical relationship of bottom surface are formed with the workbench upper surface.
The Laser emission component includes a substrate, four lasers for being fixedly mounted on surface, is fixedly mounted
Three legs below substrate and the spheroid for being arranged on each feet bottom.
The position relationship of four lasers meets following condition：The equal direction of the direction of the launch of four lasers
PSD sensor arrays；In the laser axis of four lasers transmitting is generally aligned in the same plane, and the plane is parallel to described three
Plane where the triangle that the centre of sphere line of individual spheroid is formed；Four lasers are divided into two in two groups, every group and swashed
The laser axis collinear of light device transmitting, the two lines that two groups of lasers are formed are parallel.
The Laser emission component also includes the 5th laser for being fixedly mounted on surface；5th laser
The position relationship of device meets following condition：The laser axis of the 5th laser transmitting is located at the transmitting of aforementioned four laser
The two lines formed where laser axis in plane and perpendicular to two groups of lasers；The direction of the launch of 5th laser
The two lines formed towards PSD sensor arrays and not towards two groups of lasers.
The good effect that the present invention has：The measurement apparatus of the present invention is simple in construction, cheap, and operator is required not
Height, and very high measurement accuracy can be reached, it is fully able to substitute three coordinate measuring machine to relatively large sized carbon fiber
The measurement of composite-material body.
Brief description of the drawings
Fig. 1 is the structural representation of the measurement apparatus of the present invention.
Fig. 2 is Fig. 1 top view.
Embodiment
（Embodiment 1）
See Fig. 1 and Fig. 2, the carbon fibre composite vehicle body measurement apparatus of the present embodiment is by 1, four group of phase of a workbench
Same motion-sensing unit 2 and Laser emission component are formed.
Every group of motion-sensing unit 2 is by 21, gratings 22 of a linear motion unit and a PSD sensor array
Row 23 form.Linear motion unit 21 is by rectilinear orbit 211 and the slide unit 212 to be moved along a straight line along rectilinear orbit 211
Composition；Grating 22 is arranged on the outside of rectilinear orbit 211, for determining the displacement of slide unit 212；PSD sensor arrays 23 fix peace
On slide unit 212.
Each PSD sensor arrays 23 are by several（The present embodiment is 100, is arranged to 100 [vertical direction] × 1
[horizontal direction] array）Photosurface be generally aligned in the same plane in PSD sensors 231 form, all PSD sensors 231 it is photosensitive
Plane is perpendicular to the upper surface of workbench 1 and parallel to the linear movement direction of slide unit 212 where face.So when four straight lines
When slide unit 212 on moving cell 21 is moved along a straight line, four PSD sensor arrays 23 being fixedly mounted on slide unit 212
The geometry of upper surface four sides and bottom surface that form a cube of plane and workbench 1 of the inswept formation of photosurface close
System.
It is possible thereby to determine four gratings 22 mutual alignment relation and each PSD sensors 231 photosurface it is relative
In the relative position relation of slide unit 212, M is designated as.
Laser emission component include a substrate 3, five lasers 41 for being fixedly mounted on the top of substrate 3,42,43,44,
45th, three legs 5 for being fixedly mounted on the lower section of substrate 3 and the spheroid 6 for being arranged on each bottom of leg 5.
The direction of the launch of five lasers 41,42,43,44,45 is towards PSD sensor arrays 23.
In the laser axis that five lasers 41,42,43,44,45 are launched is generally aligned in the same plane, and the plane is parallel to three
Plane where the triangle that the centre of sphere line of individual spheroid 6 is formed.
Wherein, the laser axis collinear that laser 41 and laser 44 are launched（A lines are designated as below）, laser 42 and laser
The laser axis collinear that device 43 is launched（B lines are designated as below）, A lines are parallel with B lines.
The laser axis of 5th laser 45 transmitting is perpendicular to A lines and B lines；The direction of the launch of 5th laser 45 not towards
A lines and B lines.
It is possible thereby to the phase between determining laser axis and three spheroids 6 that five lasers 41,42,43,44,45 are launched
To position relationship, N1 is designated as.
The method measured using above-mentioned carbon fibre composite vehicle body measurement apparatus to carbon fibre composite vehicle body
Specifically include following steps：
1. carbon fibre composite vehicle body 7 is placed on workbench 1, and it is located at four groups of identical motion-sensing units 2
It is interior, by three spheroids 6 of Laser emission component in a certain position（It is designated as at A）It is real with the surface of carbon fibre composite vehicle body 7
Existing three point contact.
2. first laser 41 is opened（Remaining four laser is closed）, and four slide units 212 are driven simultaneously
Four PSD sensor arrays 23 are driven to be moved along a straight line by respective origin.
After some PSD sensor 231 in some PSD sensor array 23 senses laser, stop motion, this is measured
Laser induced point（It is designated as Z1）The position in the PSD sensors 231, is designated as M41, is the sky that can obtain Z1 by M41 and above-mentioned M
Between position, be designated as M11.Then four slide units 212 are made to retract respective origin.
Laser 41 is closed, and laser 42 is opened, and repeats said process, obtains the laser of the transmitting of laser 42 at some
The locus M12 of laser induced point Z2 on PSD sensors 231.
Laser 42 is closed, and laser 43 is opened, and repeats said process, obtains the laser of the transmitting of laser 43 at some
The locus M13 of laser induced point Z3 on PSD sensors 231.
Laser 43 is closed, and laser 44 is opened, and repeats said process, obtains the laser of the transmitting of laser 44 at some
The locus M14 of laser induced point Z4 on PSD sensors 231.
Laser 44 is closed, and laser 45 is opened, and repeats said process, obtains the laser of the transmitting of laser 45 at some
The locus M15 of laser induced point Z5 on PSD sensors 231.
It is the locus M1 for the laser axis that available five lasers 41,42,43,44,45 are launched by M11~M15,
In conjunction with above-mentioned N1, you can obtain the locus X1 of three bulbs 6 at A.
3. by three spheroids 6 of Laser emission component in another location（It is designated as at B）With carbon fibre composite vehicle body 7
Realize three point contact in surface；Repeat step 2., so as to calculate the locus X2 of three bulbs 6 at B.
4. repeat step 3., obtain some three bulbs 6 in place locus X3, X4 ..., Xn.
By X1, X2 ..., Xn be that can obtain the appearance and size data of carbon fibre composite vehicle body 7.
Above-mentioned measuring method is actual to be equal to a three coordinate measuring machine using bulb gauge head to carbon fibre composite
The surface of vehicle body 7 is measured, and the centre of sphere for calculating several with the bulb gauge head of the plane tangent of carbon fibre composite vehicle body 7 is sat
Mark, so as to obtain the appearance and size data of carbon fibre composite vehicle body 7.
Claims (1)
- A kind of 1. carbon fibre composite vehicle body measurement apparatus, it is characterised in that：By a workbench（1）, four groups of identicals Motion-sensing unit（2）And Laser emission component is formed；Every group of motion-sensing unit（2）By a linear motion unit（21）, a grating（22）An and PSD sensor Array（23）Composition；The linear motion unit（21）By rectilinear orbit（211）And along the rectilinear orbit（211）Carry out The slide unit of linear motion（212）Composition；The PSD sensor arrays（23）It is fixedly mounted on the slide unit（212）On, each PSD sensor arrays（23）Interior PSD sensors are generally aligned in the same plane by several photosurfaces（231）Composition；Four PSD sensor arrays（23）With the workbench（1）Position relationship meet following condition：When four it is straight Line moving cell（21）On slide unit（212）When being moved along a straight line, slide unit is fixedly mounted on（212）On four PSD sensing Device array（23）The inswept formation of photosurface plane and the workbench（1）Upper surface forms four sides of a cube With the geometrical relationship of bottom surface；The Laser emission component includes a substrate（3）, be fixedly mounted on substrate（3）Four lasers of top（41、42、 43、44）, be fixedly mounted on substrate（3）Three legs of lower section（5）And it is arranged on each leg（5）The spheroid of bottom（6）；Four lasers（41、42、43、44）Position relationship meet following condition：Four lasers（41、42、 43、44）The direction of the launch towards PSD sensor arrays（23）；Four lasers（41、42、43、44）The laser of transmitting In axis is generally aligned in the same plane, and the plane is parallel to three spheroids（6）Centre of sphere line formed triangle where Plane；Four lasers（41、42、43、44）The laser axis for being divided into the transmitting of two lasers in two groups, every group is total to Line, the two lines that two groups of lasers are formed are parallel；The Laser emission component is also fixedly mounted on substrate including one（3）5th laser of top（45）；Described 5th Laser（45）Position relationship meet following condition：5th laser（45）The laser axis of transmitting is located at aforementioned four Laser（41、42、43、44）Two formed where the laser axis of transmitting in plane and perpendicular to two groups of lasers Line；5th laser（45）The direction of the launch towards PSD sensor arrays（2）And formed not towards two groups of lasers Two lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510864547.0A CN105423956B (en) | 2015-11-30 | 2015-11-30 | Carbon fiber composite material vehicle body measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510864547.0A CN105423956B (en) | 2015-11-30 | 2015-11-30 | Carbon fiber composite material vehicle body measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105423956A CN105423956A (en) | 2016-03-23 |
| CN105423956B true CN105423956B (en) | 2017-11-21 |
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ID=55502336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510864547.0A Active CN105423956B (en) | 2015-11-30 | 2015-11-30 | Carbon fiber composite material vehicle body measuring device |
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| Country | Link |
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| CN (1) | CN105423956B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063104B (en) * | 2017-04-01 | 2019-06-18 | 清华大学 | Planar motor rotor position measuring system and method based on grating scale and Two-dimensional PSD |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645042A (en) * | 2005-01-12 | 2005-07-27 | 天津大学 | Laser three-dimensional color scanning digital method and digital equipment |
| CN201622065U (en) * | 2009-12-09 | 2010-11-03 | 麻伟明 | Automatic dynamic overall dimension measuring device for vehicles |
| CN201909614U (en) * | 2010-12-28 | 2011-07-27 | 苏州弗士达科学仪器有限公司 | Rotating platform structure for automatic optical measuring instruments |
| CN102144144A (en) * | 2008-09-02 | 2011-08-03 | 杜尔装备产品有限公司 | Device and method for determining and setting the chassis geometry of a vehicle |
| CN104848785A (en) * | 2014-09-05 | 2015-08-19 | 北汽福田汽车股份有限公司 | Whole-automobile parameter test system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2556533A1 (en) * | 2005-08-24 | 2007-02-24 | Degudent Gmbh | Method of determining the shape of a dental technology object and apparatus performing the method |
-
2015
- 2015-11-30 CN CN201510864547.0A patent/CN105423956B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645042A (en) * | 2005-01-12 | 2005-07-27 | 天津大学 | Laser three-dimensional color scanning digital method and digital equipment |
| CN102144144A (en) * | 2008-09-02 | 2011-08-03 | 杜尔装备产品有限公司 | Device and method for determining and setting the chassis geometry of a vehicle |
| CN201622065U (en) * | 2009-12-09 | 2010-11-03 | 麻伟明 | Automatic dynamic overall dimension measuring device for vehicles |
| CN201909614U (en) * | 2010-12-28 | 2011-07-27 | 苏州弗士达科学仪器有限公司 | Rotating platform structure for automatic optical measuring instruments |
| CN104848785A (en) * | 2014-09-05 | 2015-08-19 | 北汽福田汽车股份有限公司 | Whole-automobile parameter test system |
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| Publication number | Publication date |
|---|---|
| CN105423956A (en) | 2016-03-23 |
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