CN105300313A - Carbon fiber composite material car body member measurement device - Google Patents
Carbon fiber composite material car body member measurement device Download PDFInfo
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- CN105300313A CN105300313A CN201510853877.XA CN201510853877A CN105300313A CN 105300313 A CN105300313 A CN 105300313A CN 201510853877 A CN201510853877 A CN 201510853877A CN 105300313 A CN105300313 A CN 105300313A
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Abstract
The invention discloses a carbon fiber composite material car body member measurement device. The device is formed by a working platform, four identical PSD sensor arrays, and a laser transmitting assembly. A photosensitive surface of the four identical PSD sensor arrays and the upper surface of the working platform form four side surfaces and a bottom surface of a cube. The laser transmitting assembly comprises a substrate, five lasers and three balls. The axes of lasers transmitted by the five lasers are in the same plane which is parallel to the plane where a triangle formed by connecting the centers of the three balls is located. Four of the lasers are divided into two groups, the axes of lasers transmitted by the two lasers in each group are in the same line, and the two lines formed by the two groups of lasers are parallel. The device has a simple structure and a low cost does not have high requirement of operators, can achieve very high measurement precision, and can completely replace any three-coordinate measurement device for carbon fiber composite material car body member measurement.
Description
Technical field
The invention belongs to measurement mechanism technical field, be specifically related to a kind of carbon fibre composite bodywork component measurement mechanism.
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 carbon fibre composite bodywork component measurement mechanism providing a kind of structure simple, cheap.
The technical scheme realizing above-mentioned purpose of the present invention is: a kind of carbon fibre composite bodywork component measurement mechanism, 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.
The good effect that the present invention has: measurement mechanism structure of the present invention is simple, cheap, less demanding to operator, and can reach very high measuring accuracy, can substitute the measurement of three coordinate measuring machine to carbon fibre composite bodywork component completely.
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 carbon fibre composite bodywork component measurement mechanism 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.
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.
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.
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.
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.
Above-mentioned carbon fibre composite bodywork component measurement mechanism 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. first laser instrument 41 is opened (all the other four laser instruments are in closed condition), the laser sent is responded to by certain the PSD sensor 21 in PSD sensor array 2, measure this laser induced point (being designated as Z1) position in this PSD sensor 21, be designated as M41, the locus of Z1 can be obtained by M41 and above-mentioned M, be designated as M11.
Laser instrument 41 is closed, and laser instrument 42 is opened, and repeats said process, obtains the locus M12 of the laser induced some Z2 of laser on certain PSD sensor 21 that laser instrument 42 is launched.
Laser instrument 42 is closed, and laser instrument 43 is opened, and repeats said process, obtains the locus M13 of the laser induced some Z3 of laser on certain PSD sensor 21 that laser instrument 43 is launched.
Laser instrument 43 is closed, and laser instrument 44 is opened, and repeats said process, obtains the locus M14 of the laser induced some Z4 of laser on certain PSD sensor 21 that laser instrument 44 is launched.
Laser instrument 44 is closed, and laser instrument 45 is opened, and repeats said process, obtains the locus M15 of the laser induced some Z5 of laser on certain PSD sensor 21 that laser instrument 45 is launched.
The locus M1 of the laser axis that five laser instruments (41,42,43,44,45) are launched can be obtained by M11 ~ M15, then in conjunction with above-mentioned N1, the locus X1 of three bulbs 6 in A place can be obtained.
3. 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; Repeat step 2., thus calculate the locus X2 of three bulbs 6 in B place.
4. repeat step 3., 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. a carbon fibre composite bodywork component measurement mechanism, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853877.XA CN105300313B (en) | 2015-11-30 | 2015-11-30 | A kind of carbon fibre composite bodywork component measurement apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853877.XA CN105300313B (en) | 2015-11-30 | 2015-11-30 | A kind of carbon fibre composite bodywork component measurement apparatus |
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| Publication Number | Publication Date |
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| CN105300313A true CN105300313A (en) | 2016-02-03 |
| CN105300313B CN105300313B (en) | 2017-12-19 |
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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 |
| CN1931110A (en) * | 2005-08-24 | 2007-03-21 | 德固萨有限责任公司 | 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 |
| US20110271749A1 (en) * | 2008-09-02 | 2011-11-10 | Thomas Tentrup | Device and method for determining and adjusting 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
- 2015-11-30 CN CN201510853877.XA patent/CN105300313B/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 |
| CN1931110A (en) * | 2005-08-24 | 2007-03-21 | 德固萨有限责任公司 | Method of determining the shape of a dental technology object and apparatus for per-forming the method |
| US20110271749A1 (en) * | 2008-09-02 | 2011-11-10 | Thomas Tentrup | Device and method for determining and adjusting 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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| CN105300313B (en) | 2017-12-19 |
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