CN105486229A - Device for measuring carbon fibre composite vehicle body component - Google Patents
Device for measuring carbon fibre composite vehicle body component Download PDFInfo
- Publication number
- CN105486229A CN105486229A CN201510837545.2A CN201510837545A CN105486229A CN 105486229 A CN105486229 A CN 105486229A CN 201510837545 A CN201510837545 A CN 201510837545A CN 105486229 A CN105486229 A CN 105486229A
- Authority
- CN
- China
- Prior art keywords
- laser
- plane
- groups
- psd sensor
- instruments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 239000000835 fiber Substances 0.000 title claims abstract description 22
- 238000003491 array Methods 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 9
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005265 energy consumption Methods 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
Abstract
The invention discloses a device for measuring a carbon fibre composite vehicle body component. The device is formed by a working platform, four groups of same PSD sensor arrays and a laser emission assembly, wherein photosensitive surfaces of the four groups of same PSD sensor arrays and the upper surface of the working platform form geometrical relationship of four side surfaces and a bottom surface of a cube. The laser emission assembly comprises a substrate, five lasers and three ball bodies, wherein axes of laser rays emitted by four lasers are in the same plane, and the plane is parallel to a plane, where a triangle formed by ball center connection lines of the three ball bodies locates; and the fifth laser is same with the laser thereunder in transmitting direction, the emitted laser axes are parallel in the same plane, and the plane is vertical to the plane, the triangle formed by the ball center connection lines of the three ball bodies locates. The measuring device is simple in structure, low in cost, not high in requirements for operators and especially high in measuring efficiency, and can reach very high measuring precision.
Description
Technical field
The invention belongs to measurement mechanism technical field, be specifically related to a kind of device measuring carbon fibre composite bodywork component.
Background technology
The lightweight of body of a motor car, significant for reduction automobile energy consumption.Especially, for the pure electric vehicle in new-energy automobile, when current battery performance can not show a candle to people's will, under the prerequisite ensureing vehicle body security, reduce tare, have more realistic meaning.BMW i3 has carried out taking the lead in attempting in this respect.The BMW i3 that appearance is not modest, because adopt carbon fibre composite vehicle body, conduct oneself with dignity only 1224kg.
The carbon fibre composite vehicle body of BMW i3 is combined by some Carbon-fiber Reinforced Plastics Components, produce a carbon fibre composite vehicle body, first to produce some Carbon-fiber Reinforced Plastics Components, and then all Carbon-fiber Reinforced Plastics Components are combined.And in production run, must measure Carbon-fiber Reinforced Plastics Component physical dimension and carbon fibre composite vehicle body monnolithic case size.
Conventional three coordinate measuring machine, advanced technology, powerful, measuring accuracy is high, scientific research, produce in widespread use, the measuring accuracy requirement of a lot of product design size can be met.But also exist technical sophistication, expensive, manufacture and design difficulty large, to operator require high, measure the problems such as efficiency is on the low side.
Summary of the invention
The object of the invention is to solve the problem, the device that a kind of structure is simple, cheap, measure the higher measurement carbon fibre composite bodywork component of efficiency is provided.
The technical scheme realizing above-mentioned purpose of the present invention is: a kind of device measuring carbon fibre composite bodywork component, and it is made up of a workbench, four groups of identical PSD sensor arraies and Laser emission assembly; Often organize PSD sensor array is positioned at same plane PSD sensor composition by several photosurfaces.
Described four groups of identical PSD sensor arraies meet the following conditions with the position relationship of described workbench: described four groups of identical PSD sensor arraies are arranged on described workbench upper surface, and the photosurface of described four groups of identical PSD sensor arraies and described workbench upper surface form four sides of a square body and the geometric relationship of bottom surface.
Described Laser emission assembly comprises a substrate, is fixedly mounted on four laser instruments of surface, is fixedly mounted on three legs below substrate and is arranged on the spheroid of each leg bottom.
The position relationship of described four laser instruments meets the following conditions: the transmit direction of described four laser instruments is all towards PSD sensor array; The laser axis that described four laser instruments are launched is positioned at same plane, and this plane is parallel to the plane at the triangle place of the centre of sphere line formation of described three spheroids; Described four laser instruments are divided into two groups, the laser axis collinear that two laser instruments often in group are launched, and two lines of two groups of laser instrument formation intersect but out of plumb.
Described Laser emission assembly also comprises one and is arranged on five laser instrument of above-mentioned four laser instruments above any one; The position relationship of described 5th laser instrument meets the following conditions: described 5th laser instrument is identical with the laser instrument transmit direction below it and the laser axis launched is parallel in same plane, and this plane orthogonal is in the plane at the triangle place that the centre of sphere line of described three spheroids is formed.
The good effect that the present invention has: (1) measurement mechanism structure of the present invention is simple, cheap, less demanding to operator, and very high measuring accuracy can be reached, the measurement of three coordinate measuring machine to carbon fibre composite bodywork component can be substituted completely.(2) measurement mechanism of the present invention is by arranging the 5th laser instrument, laser instrument can be realized simultaneously to open and to obtain five laser induced points in the lump, then only can need determine according to the spatial relation between five laser induced points each laser instrument for laser induced point, thus obtain the locus of two laser axis, substantially increase measurement efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of measurement mechanism of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
(embodiment 1)
See Fig. 1 and Fig. 2, the device of the measurement carbon fibre composite bodywork component of the present embodiment is made up of the identical PSD sensor array 2 of a workbench 1, four groups and Laser emission assembly.
The PSD sensor 21 that often group PSD sensor array 2 is positioned at same plane by several (the present embodiment is 400,20 × 20 arrays) photosurfaces forms.
Four groups of identical PSD sensor arraies 2 are arranged on workbench 1 upper surface, and the photosurface of four groups of identical PSD sensor arraies 2 and workbench 1 upper surface form four sides of a square body and the geometric relationship (before and after in Fig. 1, two groups of PSD sensor arraies 2 omit) of bottom surface.The relative position relation of all PSD sensors 21 on four groups of identical PSD sensor arraies 2 can be determined thus, be designated as M.
Laser emission assembly comprises a substrate 3, be fixedly mounted on five laser instruments (41,42,43,44,45) above substrate 3, be fixedly mounted on three legs 5 below substrate 3 and be arranged on the spheroid 6 of each leg 5 bottom.
The transmit direction of five laser instruments (41,42,43,44,45) is all towards PSD sensor array 2.
Wherein, the laser axis that four laser instruments (41,42,43,44) are launched is positioned at same plane, and the plane at triangle place that the centre of sphere line that this plane is parallel to three spheroids 6 is formed.
Wherein, the laser axis collinear (being designated as A line below) that laser instrument 41 and laser instrument 43 are launched, the laser axis collinear (being designated as B line below) that laser instrument 42 and laser instrument 44 are launched, A line and B line intersect but out of plumb.
Laser instrument 45 is arranged on (the present embodiment is laser instrument 41) above other laser instrument arbitrary, laser instrument 45 is identical with laser instrument 41 transmit direction and the laser axis launched is parallel in same plane, and this plane orthogonal is in the plane at the triangle place that the centre of sphere line of three spheroids 6 is formed.
The relative position relation between the laser axis that five laser instruments (41,42,43,44,45) are launched and three spheroids 6 can be determined thus, be designated as N1.
The device of above-mentioned measurement carbon fibre composite bodywork component is adopted specifically to comprise the following steps the method that carbon fibre composite bodywork component is measured:
1. carbon fibre composite bodywork component 7 is placed on workbench 1, and be positioned at four groups of identical PSD sensor arraies 2, three of Laser emission assembly spheroids 6 are realized three point contact a certain position (being designated as A place) and the surface of carbon fibre composite bodywork component 7.
2. five laser instruments (41,42,43,44,45) are all opened, responded to by PSD sensor array 2, measure five laser induced somes position in corresponding PSD sensor 21, the locus of five laser induced points can be obtained by each position and above-mentioned M.
3. by five laser induced somes line between two, obtain ten line segments, judge the position relationship (altogether 45) between any two line segments, will meet intersect and two line segment place straight lines that intersection point is not these five laser induced points are defined as A line and B line, the laser induced point (being designated as Z5) being laser instrument 45 in five laser induced points not on A line and B line.
The distance of more laser induced some Z5 and A line, B line; Be A line apart from short person, another is then B line.
Cross laser induced some Z5 and be vertically intersected on A line (intersection point is designated as P) as vertical line, A line and the intersection point (being designated as O) of B line are designated as L1 with the distance of P, and on A line, the distance of certain laser induced point and P point and O point is designated as L2 and L3 respectively.
Laser induced some A line meeting L3=L2+L1 is the laser induced point (being designated as Z1) of laser instrument 41, and another is the laser induced point (being designated as Z3) of laser instrument 43, and Z3 meets L3=L2-L1.
According to the position relationship of A line and B line, the laser induced point (being designated as Z2) of laser instrument 42 and the laser induced point (being designated as Z4) of laser instrument 44 can be determined.
The locus M1 of the laser axis that four laser instruments (41,42,43,44) are launched can be determined thus, then in conjunction with above-mentioned N1, the locus X1 of three bulbs 6 in A place can be obtained.
4. three of Laser emission assembly spheroids 6 are realized three point contact another location (being designated as B place) and the surface of carbon fibre composite bodywork component 7; 2. and 3. repeat step, thus calculate the locus X2 of three bulbs 6 in B place.
5. repeat step 4., obtain the locus X3 of three bulbs 6 in some places, X4 ..., Xn.
By X1, X2 ..., Xn can obtain the physical dimension data of carbon fibre composite bodywork component 7.
The actual three coordinate measuring machine being equal to an employing bulb gauge head of above-mentioned measuring method is measured carbon fibre composite bodywork component 7 surface, calculate the sphere centre coordinate of the bulb gauge head of several and carbon fibre composite bodywork component 7 plane tangent, thus obtain carbon fibre composite bodywork component 7 physical dimension data.
Claims (1)
1. measure a device for carbon fibre composite bodywork component, it is characterized in that: be made up of a workbench (1), four groups of identical PSD sensor arraies (2) and Laser emission assembly;
Often organize PSD sensor array (2) is positioned at same plane PSD sensor (21) composition by several photosurfaces;
Described four groups of identical PSD sensor arraies (2) meet the following conditions with the position relationship of described workbench (1): described four groups of identical PSD sensor arraies (2) are arranged on described workbench (1) upper surface, and the photosurface of described four groups of identical PSD sensor arraies (2) and described workbench (1) upper surface form four sides of a square body and the geometric relationship of bottom surface;
Described Laser emission assembly comprises a substrate (3), is fixedly mounted on four laser instruments (41,42,43,44) of substrate (3) top, is fixedly mounted on three legs (5) of substrate (3) below and is arranged on the spheroid (6) of each leg (5) bottom;
The position relationship of described four laser instruments (41,42,43,44) meets the following conditions: the transmit direction of described four laser instruments (41,42,43,44) is all towards PSD sensor array (2); The laser axis that described four laser instruments (41,42,43,44) are launched is positioned at same plane, and this plane is parallel to the plane at the triangle place of the centre of sphere line formation of described three spheroids (6); Described four laser instruments (41,42,43,44) are divided into two groups, the laser axis collinear that two laser instruments often in group are launched, and two lines of two groups of laser instrument formation intersect but out of plumb;
Described Laser emission assembly also comprises one and is arranged on five laser instrument (45) of above-mentioned four laser instruments (41,42,43,44) above any one; The position relationship of described 5th laser instrument (45) meets the following conditions: described 5th laser instrument (45) is identical with the laser instrument transmit direction below it and the laser axis launched is parallel in same plane, and this plane orthogonal is in the plane at the triangle place that the centre of sphere line of described three spheroids (6) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837545.2A CN105486229B (en) | 2015-11-26 | 2015-11-26 | Measure the device of carbon fibre composite bodywork component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837545.2A CN105486229B (en) | 2015-11-26 | 2015-11-26 | Measure the device of carbon fibre composite bodywork component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105486229A true CN105486229A (en) | 2016-04-13 |
| CN105486229B CN105486229B (en) | 2017-11-21 |
Family
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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 | Measure the device of carbon fibre composite bodywork component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105486229B (en) |
Citations (6)
| 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 |
| US20070046663A1 (en) * | 2005-08-24 | 2007-03-01 | Hartmut Brinkmann | Method of determining the shape of a dental technology object and apparatus for per-forming the method |
| 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 |
-
2015
- 2015-11-26 CN CN201510837545.2A patent/CN105486229B/en active Active
Patent Citations (6)
| 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 |
| US20070046663A1 (en) * | 2005-08-24 | 2007-03-01 | Hartmut Brinkmann | Method of determining the shape of a dental technology object and apparatus for per-forming the method |
| 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 |
|---|---|
| CN105486229B (en) | 2017-11-21 |
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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 |