Measuring device for carbon fiber composite body components
A composite material and measuring device technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of complex technology, high price, low measuring efficiency, etc., and achieve the effects of high measuring accuracy, low price, and simple structure
Active Publication Date: 2017-11-21
JIANGSU UNIV OF TECH
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- Application Information
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Problems solved by technology
However, there are also problems such as complex technology, high price, difficult design and manufacture, high requirements for operators, and low measurement efficiency.
Method used
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Embodiment 1）
[0014] See figure 1 and figure 2 , the carbon fiber composite body component measurement device of this embodiment is composed of a working platform 1, four groups of the same PSD sensor array 2 and a laser emitting assembly.
[0015] Each PSD sensor array 2 is composed of several (400 in this embodiment, 20×20 array) PSD sensors 21 whose photosensitive surfaces are located in the same plane.
[0016] Four sets of identical PSD sensor arrays 2 are arranged on the upper surface of the working platform 1, and the photosensitive surfaces of the four sets of identical PSD sensor arrays 2 and the upper surface of the working platform 1 form a geometric relationship between the four sides and the bottom surface of a cube ( figure 1 The two groups of PSD sensor arrays 2 in front and rear are omitted). Thereby, the relative positional relationship of all PSD sensors 21 on four groups of the same PSD sensor arrays 2 can be determined, denoted as M.
[0017] The laser emitting assem...
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The invention discloses a member measurement apparatus for a carbon-fiber-composite-material-based vehicle body. The member measurement apparatus comprises a working platform, four groups of identical PSD sensor arrays and a laser transmitting assembly. Photosensitive surfaces of the four groups of identical PSD sensor arrays and an upper surface of the working platform form a geometrical relationship of four side surfaces and a bottom surface of a square body. The laser transmitting assembly consists of a substrate, four lasers and three sphere bodies; laser axes transmitted by the four lasers are located on the same plane; and the plane is parallel to a plane where a triangle formed by connection of centers of the three sphere bodies is located. The four lasers are divided into two groups; the laser axes transmitted by the two lasers in each group are in a collinear mode; and two lines formed by the two groups of lasers are intersected. According to the invention, the measurement apparatus has a simple structure and the cost is low; the requirement on the operator is low; the measurement precision is high; and replacement of measurement on members of the carbon-fiber-composite-material-based vehicle body by a three-coordinate measurement machine can be realized completely.
Description
technical field [0001] The invention belongs to the technical field of measuring devices, and in particular relates to a measuring device for carbon fiber composite body components. Background technique [0002] The lightweight of the automobile body is of great significance for reducing the energy consumption of the automobile. Especially for pure electric vehicles in new energy vehicles, when the current battery performance is far from satisfactory, it is more practical to reduce the weight of the vehicle body under the premise of ensuring the safety of the vehicle body. The BMW i3 is the first to try this out. The BMW i3, which is not thin in appearance, weighs only 1224kg because of the carbon fiber composite body. [0003] The carbon fiber composite body of the BMW i3 is composed of several carbon fiber composite components. To produce a carbon fiber composite body, several carbon fiber composite components must first be produced, and then all carbon fiber composite c...
Claims
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IPC IPC(8): G01B11/245G01B11/00
CPCG01B11/00G01B11/245
Inventor 刘浏曹清林周金宇邱睿
Owner JIANGSU UNIV OF TECH