CN105509642A - Device for measuring vehicle body component made of carbon fiber composite - Google Patents
Device for measuring vehicle body component made of carbon fiber composite Download PDFInfo
- Publication number
- CN105509642A CN105509642A CN201610059369.9A CN201610059369A CN105509642A CN 105509642 A CN105509642 A CN 105509642A CN 201610059369 A CN201610059369 A CN 201610059369A CN 105509642 A CN105509642 A CN 105509642A
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- China
- Prior art keywords
- laser
- plane
- line
- groups
- psd sensor
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- 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.)
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- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 229920000049 Carbon (fiber) Polymers 0.000 title abstract 3
- 239000004917 carbon fiber Substances 0.000 title abstract 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract 3
- 238000003491 array Methods 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 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
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 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
- 230000004807 localization Effects 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
- 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 vehicle body component made of a carbon fiber composite. The device is composed of a working platform, four same PSD sensor arrays and a laser emitting assembly; the photosensitive surfaces of the PSD sensor arrays and the upper surface of the working platform form a geometrical relationship of four side faces and a bottom face of a cube. The laser emitting assembly comprises a substrate, six lasers and three spheres, wherein laser axes emitted by the five lasers are located in a same plane, and the plane is parallel to the plane where a triangle formed by lines connecting centers of the spheres is located; the emitting direction of the sixth laser has the same direction as that of the lasers blow the sixth laser, and the emitted laser axes are parallel in the same plane which is perpendicular to the plane where the triangle formed by the lines connecting the centers of the spheres is located. According to the device for measuring the vehicle body component made of the carbon fiber composite, the structure is simple, the price is low, the requirement on an operator is low, the measuring efficiency is particularly high, and very high measuring precision can be achieved.
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, two line parallels that two groups of laser instruments are formed.
Described Laser emission assembly also comprises the 5th laser instrument that is fixedly mounted on surface; The position relationship of described 5th laser instrument meets the following conditions: the laser axis that described 5th laser instrument is launched is positioned at the laser axis place plane that above-mentioned four laser instruments are launched and the two bars of lines formed perpendicular to described two groups of laser instruments; The transmit direction of described 5th laser instrument is not towards PSD sensor array and towards two bars of lines that described two groups of laser instruments are formed.
Described Laser emission assembly also comprises one and is arranged on six laser instrument of above-mentioned four laser instruments above any one; The position relationship of described 6th laser instrument meets the following conditions: described 6th 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.
On the laser axis that laser instrument is launched, the critical localisation that definition laser beam leaves laser instrument be laser instrument go out luminous point, the spacing of two bars of lines that the spacing >=described two groups of laser instruments going out one bar of line nearer in two bars of lines that luminous point and described two groups of laser instruments are formed of described 5th laser instrument are 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 6th laser instrument, laser instrument can be realized simultaneously to open and to obtain six laser induced points in the lump, then only the laser induced point that each laser instrument is corresponding can need be determined according to the spatial relation between six laser induced points, thus obtain the locus of three 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 S.
Laser emission assembly comprises a substrate 3, be fixedly mounted on six laser instruments (41,42,43,44,45,46) 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 six laser instruments (41,42,43,44,45,46) is all towards PSD sensor array 2.
Wherein, the laser axis that five laser instruments (41,42,43,44,45) 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.Laser instrument 41 ~ laser instrument 45 is from overlooking direction (being also the vertical view of Fig. 2) in arranging counterclockwise.
Wherein, the laser axis collinear (being designated as A line below) that laser instrument 41 and laser instrument 44 are launched, the laser axis collinear (being designated as B line below) that laser instrument 42 and laser instrument 43 are launched, A line and B line parallel and spacing is H.
The laser axis that 5th laser instrument 45 is launched is perpendicular to A line and B line; The transmit direction of the 5th laser instrument 45 is not towards A line and B line.
On the laser axis that laser instrument is launched, the critical localisation that definition laser beam leaves laser instrument be laser instrument go out luminous point, the luminous point (the M point in Fig. 2) that goes out of laser instrument 45 is 2H with spacing >=H(the present embodiment of A line).
6th laser instrument 46 is arranged on four laser instruments (41,42,43,44) arbitrary top (the present embodiment is laser instrument 41), 6th laser instrument 46 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 six laser instruments (41,42,43,44,45,46) are launched and three spheroids 6 can be determined thus, be designated as T1.
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. six laser instruments (41,42,43,44,45,46) are all opened, responded to by PSD sensor array 2, measure six laser induced somes position in corresponding PSD sensor 21, the locus of six laser induced points can be obtained by each position and above-mentioned S.
3. there are five laser induced points to be positioned at same plane in six laser induced points, are not positioned at the laser induced point (being designated as Z6) being the 6th laser instrument 46 of this plane.
Five laser induced points that residue is positioned at same plane are looked from Z6 to this plane by counterclockwise minute being designated as p0, p1, p2, p3, p4.
Light from p1, line p1 and p4, be designated as L line.Line p2 and p3, is designated as N line.If L line parallel is in N line, then L line is A line, and N line is B line.
Otherwise, light from p2, line p2 and p0, be designated as L line.Line p3 and p4, is designated as N line.If L line parallel is in N line, then L line is A line, and N line is B line.
Otherwise, light from p3, line p3 and p1, be designated as L line.Line p4 and p0, is designated as N line.If L line parallel is in N line, then L line is A line, and N line is B line.
Otherwise, light from p4, line p4 and p2, be designated as L line.Line p0 and p1, is designated as N line.If L line parallel is in N line, then L line is A line, and N line is B line.
Otherwise, light from p0, line p0 and p3, be designated as L line.Line p1 and p2, is designated as N line.If L line parallel is in N line, then L line is A line, and N line is B line.
A line and B line can be determined thus, the laser induced point (being designated as Z5) being the 5th laser instrument 45 in five laser induced points not on A line and B line.
Look to this plane from Z6, from Z5, be then followed successively by the laser induced point (being designated as Z1) of laser instrument 41, the laser induced point (being designated as Z2) of laser instrument 42, the laser induced point (being designated as Z3) of laser instrument 43, the laser induced point (Z4) of laser instrument 44 according to the laser induced point counterclockwise occurred.
The locus S1 of the laser axis that six laser instruments (41,42,43,44,45,46) are launched can be determined thus, then in conjunction with above-mentioned T1, 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, two line parallels that two groups of laser instruments are formed;
Described Laser emission assembly also comprises the 5th laser instrument (45) that is fixedly mounted on substrate (3) top; The position relationship of described 5th laser instrument (45) meets the following conditions: the laser axis that described 5th laser instrument (45) is launched is positioned at the laser axis place plane that above-mentioned four laser instruments (41,42,43,44) are launched and the two bars of lines formed perpendicular to described two groups of laser instruments; The transmit direction of described 5th laser instrument (45) is not towards PSD sensor array (2) and towards two bars of lines that described two groups of laser instruments are formed;
Described Laser emission assembly also comprises one and is arranged on six laser instrument (46) of above-mentioned four laser instruments (41,42,43,44) above any one; The position relationship of described 6th laser instrument (46) meets the following conditions: described 6th laser instrument (46) 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 |
|---|---|---|---|
| CN201610059369.9A CN105509642B (en) | 2016-01-28 | 2016-01-28 | A kind of device for measuring carbon fibre composite bodywork component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059369.9A CN105509642B (en) | 2016-01-28 | 2016-01-28 | A kind of device for measuring carbon fibre composite bodywork component |
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| CN105509642A true CN105509642A (en) | 2016-04-20 |
| CN105509642B CN105509642B (en) | 2017-12-19 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272078A (en) * | 2020-04-01 | 2020-06-12 | 江苏理工学院 | Position tolerance measurement method for reference hole of shaft automobile composite material molded part |
| CN111272079A (en) * | 2020-04-01 | 2020-06-12 | 江苏理工学院 | Position tolerance measurement method for axis automobile composite material molded part to reference axis |
| CN111272076A (en) * | 2020-04-01 | 2020-06-12 | 江苏理工学院 | Method for measuring position tolerance of hole type automobile composite material molded part to reference shaft |
| CN111272077A (en) * | 2020-04-01 | 2020-06-12 | 江苏理工学院 | Method for measuring position tolerance of hole type automobile composite material molded part to reference hole |
| CN111707209A (en) * | 2019-03-18 | 2020-09-25 | 江苏理工学院 | Roundness measuring method for automobile composite material molded part |
| CN111707214A (en) * | 2019-03-18 | 2020-09-25 | 江苏理工学院 | Line profile measuring device and method for automobile composite material molded part |
| CN111707211A (en) * | 2019-03-18 | 2020-09-25 | 江苏理工学院 | Roundness and cylindricity measuring device for automobile composite material molded part |
| CN111707212A (en) * | 2019-03-18 | 2020-09-25 | 江苏理工学院 | Line profile measuring method and device for automobile composite material molded part |
| CN111707210A (en) * | 2019-03-18 | 2020-09-25 | 江苏理工学院 | Device for measuring roundness and cylindricity of automobile composite material molded part |
| CN111707213A (en) * | 2019-03-18 | 2020-09-25 | 江苏理工学院 | Cylindricity measuring method for automobile composite material molded part |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111707213A (en) * | 2019-03-18 | 2020-09-25 | 江苏理工学院 | Cylindricity measuring method for automobile composite material molded part |
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| CN111707214A (en) * | 2019-03-18 | 2020-09-25 | 江苏理工学院 | Line profile measuring device and method for automobile composite material molded part |
| CN111707213B (en) * | 2019-03-18 | 2022-04-19 | 江苏理工学院 | Cylindricity measuring method for automobile composite material molded part |
| CN111707212A (en) * | 2019-03-18 | 2020-09-25 | 江苏理工学院 | Line profile measuring method and device for automobile composite material molded part |
| CN111707211A (en) * | 2019-03-18 | 2020-09-25 | 江苏理工学院 | Roundness and cylindricity measuring device for automobile composite material molded part |
| CN111707212B (en) * | 2019-03-18 | 2022-03-29 | 江苏理工学院 | Line profile measuring method and device for automobile composite material molded part |
| CN111707214B (en) * | 2019-03-18 | 2022-03-29 | 江苏理工学院 | Line profile measuring device and method for automobile composite material molded part |
| CN111272078A (en) * | 2020-04-01 | 2020-06-12 | 江苏理工学院 | Position tolerance measurement method for reference hole of shaft automobile composite material molded part |
| CN111272079A (en) * | 2020-04-01 | 2020-06-12 | 江苏理工学院 | Position tolerance measurement method for axis automobile composite material molded part to reference axis |
| CN111272077A (en) * | 2020-04-01 | 2020-06-12 | 江苏理工学院 | Method for measuring position tolerance of hole type automobile composite material molded part to reference hole |
| CN111272076A (en) * | 2020-04-01 | 2020-06-12 | 江苏理工学院 | Method for measuring position tolerance of hole type automobile composite material molded part to reference shaft |
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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 |
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Effective date of registration: 20181229 Address after: 213164 First Floor, Building C, Tianhong Science and Technology Building, Changzhou Science and Education City, 801 Changwuzhong Road, Wujin District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Branch Co., Ltd. of Mechanical Science Research Institute Address before: No. 1801 Zhong Wu Avenue, Changzhou, Jiangsu Province, Jiangsu Patentee before: Jiangsu University of Technology |
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Address after: 213164 First Floor, Building C, Tianhong Science and Technology Building, Changzhou Science and Education City, 801 Changwuzhong Road, Wujin District, Changzhou City, Jiangsu Province Patentee after: China National Machinery Institute Group Jiangsu Branch Co.,Ltd. Address before: 213164 First Floor, Building C, Tianhong Science and Technology Building, Changzhou Science and Education City, 801 Changwuzhong Road, Wujin District, Changzhou City, Jiangsu Province Patentee before: Jiangsu Branch Co., Ltd. of Mechanical Science Research Institute |