CN105486229B - Device for measuring carbon fiber composite material vehicle body component - Google Patents
Device for measuring carbon fiber composite material vehicle body component Download PDFInfo
- Publication number
- CN105486229B CN105486229B CN201510837545.2A CN201510837545A CN105486229B CN 105486229 B CN105486229 B CN 105486229B CN 201510837545 A CN201510837545 A CN 201510837545A CN 105486229 B CN105486229 B CN 105486229B
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- Prior art keywords
- laser
- lasers
- plane
- groups
- psd sensor
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- 239000002131 composite material Substances 0.000 title claims abstract description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract description 3
- 229920000049 Carbon (fiber) Polymers 0.000 title abstract 2
- 239000004917 carbon fiber Substances 0.000 title abstract 2
- 238000003491 array Methods 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 229910052799 carbon Inorganic materials 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 14
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000037396 body weight 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
-
- 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
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Inorganic Fibers (AREA)
Abstract
The invention discloses a device for measuring a carbon fiber composite material vehicle body component, which consists of a working platform, four groups of same PSD sensor arrays and a laser emission assembly; the photosensitive surfaces of the four groups of same PSD sensor arrays and the upper surface of the working platform form the geometric relationship of four side surfaces and the bottom surface of a cube. The laser emitting assembly comprises a substrate, five lasers and three spheres. The laser axes emitted by the four lasers are positioned in the same plane, and the plane is parallel to the plane where a triangle formed by connecting the spherical centers of the three spheres is positioned; the emitting directions of the fifth laser and the laser below the fifth laser are the same, the emitting laser axes are parallel in the same plane, and the plane is perpendicular to the plane where the triangle formed by the connecting lines of the sphere centers of the three spheres is located. The measuring device has the advantages of simple structure, low price, low requirement on operators, particularly high measuring efficiency, and high measuring precision.
Description
Technical field
The invention belongs to measurement apparatus technical field, and in particular to a kind of dress for measuring carbon fibre composite bodywork component
Put.
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 there is also technical sophistication, expensive, design system
Make the problems such as difficulty is big, high to operator's requirement, measurement efficiency is relatively low.
The content of the invention
It is an object of the invention to solve the above problems, there is provided it is a kind of it is simple in construction, cheap, measurement efficiency is higher
Measure the device of carbon fibre composite bodywork component.
Realizing the technical scheme of above-mentioned purpose of the present invention is：A kind of device for measuring carbon fibre composite bodywork component,
It is made up of a workbench, four groups of identical PSD sensor arrays and Laser emission component；Every group of PSD sensor
Array by several photosurfaces be generally aligned in the same plane in PSD sensor groups into.
The position relationship of four groups of identical PSD sensor arrays and the workbench meets following condition：It is described
Four groups of identical PSD sensor arrays are arranged on the workbench upper surface, and four groups of identicals PSD sensor arrays
The photosurface of row forms four sides of a cube and the geometrical relationship of bottom surface 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 intersect but out of plumb.
The Laser emission component also includes one and is arranged on fiveth laser of the aforementioned four laser above any one；
The position relationship of 5th laser meets following condition：5th laser and laser direction of the launch phase below
Same and transmitting laser axis is parallel in the same plane, and the plane is perpendicular to the centre of sphere line formation of three spheroids
Plane where triangle.
The good effect that the present invention has：（1）The measurement apparatus of the present invention is simple in construction, cheap, will to operator
Measurement accuracy that is not high, and can reaching very high is sought, is fully able to substitute three coordinate measuring machine to carbon fibre composite car
The measurement of body component.（2）The measurement apparatus of the present invention is by setting the 5th laser, it is possible to achieve laser is opened into one simultaneously
And five laser induced points are obtained, then only need to it be can determine that according to the spatial relation between five laser induced points each
Laser for laser induced point, so as to obtain the locus of two laser axis, substantially increase measurement efficiency.
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 device of the measurement carbon fibre composite bodywork component of the present embodiment by a workbench 1,
Four groups of identical PSD sensor arrays 2 and Laser emission component are formed.
Every group of PSD sensor array 2 is by several（The present embodiment is 400,20 × 20 arrays）Photosurface is positioned at same
PSD sensors 21 in one plane form.
Four groups of identical PSD sensor arrays 2 are arranged on the upper surface of workbench 1, and four groups of identical PSD sensors
The photosurface of array 2 forms four sides of a cube and the geometrical relationship of bottom surface with the upper surface of workbench 1（Before in Fig. 1
Two groups of PSD sensor arrays 2 omit afterwards）.It is possible thereby to determine all PSD sensors on four groups of identical PSD sensor arrays 2
21 relative position relation, is designated as M.
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 2.
Wherein, in the laser axis that four lasers 41,42,43,44 are launched is generally aligned in the same plane, and the plane parallel to
Plane where the triangle that the centre of sphere line of three spheroids 6 is formed.
Wherein, the laser axis collinear that laser 41 and laser 43 are launched（A lines are designated as below）, laser 42 and laser
The laser axis collinear that device 44 is launched（B lines are designated as below）, A lines and B lines be intersecting but out of plumb.
Laser 45 is arranged on above any other lasers（The present embodiment is laser 41）, laser 45 and laser
41 direction of the launch are identical and the laser axis of transmitting is parallel in the same plane, and the plane is perpendicular to the centre of sphere of three spheroids 6
Plane where the triangle that line is formed.
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.
Carbon fibre composite bodywork component is carried out using the device of above-mentioned measurement carbon fibre composite bodywork component
The method of measurement specifically includes following steps：
1. carbon fibre composite bodywork component 7 is placed on workbench 1, and it is located at four groups of identical PSD sensors
In array 2, by three spheroids 6 of Laser emission component in a certain position（It is designated as at A）With carbon fibre composite bodywork component 7
Surface realize three point contact.
2. five lasers 41,42,43,44,45 are fully open, sensed by PSD sensor arrays 2, measure five and swash
Photoinduction point position in corresponding PSD sensors 21, it is the space that can obtain five laser induced points by each position and above-mentioned M
Position.
3. by five laser induced points line two-by-two, ten line segments are obtained, judge that the position between any two lines section is closed
System（45 altogether）, will meet intersecting and intersection point be not the two lines section of this five laser induced points where straight line be defined as A lines
With B lines, in five laser induced points not on A lines and B lines be laser 45 laser induced point（It is designated as Z5）.
More laser induced point Z5 and A lines, the distance of B lines；It is A lines apart from short person, another is then B lines.
Cross laser induced point Z5 and be vertically intersected on A lines as vertical line（Intersection point is designated as P）, by A lines and the intersection point of B lines（It is designated as O）
L1 is designated as with P distance, the distance of certain laser induced point and P points and O points is designated as L2 and L3 respectively on A lines.
The laser induced point for meeting L3=L2+L1 on A lines is the laser induced point of laser 41（It is designated as Z1）, another
The as laser induced point of laser 43（It is designated as Z3）, Z3 meets L3=L2-L1.
According to A lines and the position relationship of B lines, you can determine the laser induced point of laser 42（It is designated as Z2）And laser
44 laser induced point（It is designated as Z4）.
It is possible thereby to the locus M1 for the laser axis that four lasers 41,42,43,44 are launched is determined, in conjunction with upper
State N1, you can obtain the locus X1 of three bulbs 6 at A.
4. by three spheroids 6 of Laser emission component in another location（It is designated as at B）With carbon fibre composite vehicle body structure
Realize three point contact in the surface of part 7；Repeat step 2. and 3., so as to calculate the locus X2 of three bulbs 6 at B.
5. repeat step 4., 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 bodywork component 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 bodywork component 7 measures, and calculates several bulb gauge heads with the plane tangent of carbon fibre composite bodywork component 7
Sphere centre coordinate, so as to obtain the appearance and size data of carbon fibre composite bodywork component 7.
Claims (1)
- A kind of 1. device for measuring carbon fibre composite bodywork component, it is characterised in that：By a workbench（1）, four groups Identical PSD sensor arrays（2）And Laser emission component is formed；Every group of PSD sensor array（2）Interior PSD sensors are generally aligned in the same plane by several photosurfaces（21）Composition；Four groups of identicals PSD sensor arrays（2）With the workbench（1）Position relationship meet following condition：Institute State four groups of identical PSD sensor arrays（2）It is arranged on the workbench（1）Upper surface, and four groups of identical PSD Sensor array（2）Photosurface and the workbench（1）Upper surface form a cube four sides and bottom surface it is several What relation；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（2）；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 intersect but out of plumb；The Laser emission component is also arranged on aforementioned four laser including one（41、42、43、44）Above any one Five lasers（45）；5th laser（45）Position relationship meet following condition：5th laser（45）With it The laser direction of the launch of lower section is identical and the laser axis of transmitting is parallel in the same plane, and the plane is perpendicular to described three Individual spheroid（6）Centre of sphere line formed triangle where plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837545.2A CN105486229B (en) | 2015-11-26 | 2015-11-26 | Device for measuring carbon fiber composite material vehicle body component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837545.2A CN105486229B (en) | 2015-11-26 | 2015-11-26 | Device for measuring carbon fiber composite material vehicle body component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105486229A CN105486229A (en) | 2016-04-13 |
| CN105486229B true CN105486229B (en) | 2017-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510837545.2A Active CN105486229B (en) | 2015-11-26 | 2015-11-26 | Device for measuring carbon fiber composite material vehicle body component |
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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
- 2015-11-26 CN CN201510837545.2A patent/CN105486229B/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 |
|---|---|
| CN105486229A (en) | 2016-04-13 |
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Address after: No. 1801 Zhong Wu Avenue, Changzhou, Jiangsu Province, Jiangsu Patentee after: Jiangsu University of Technology Address before: 213001 1801 Zhong Wu Avenue, Zhong Lou District, Changzhou, Jiangsu Patentee before: Jiangsu University of Technology |