A method of improving the accuracy of the local pose of components by optimizing and constructing measurement points
A technology for measuring points and components, applied in measuring devices, instruments, etc., can solve problems such as high cost, low efficiency, and spatial impact of component attitude adjustment and positioning, and achieve the effect of improving work efficiency and efficiency
Active Publication Date: 2022-07-12
XI'AN AIRCRAFT INTERNATIONAL
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Problems solved by technology
In order to realize the local accuracy of the attitude adjustment and positioning of aircraft components, the current technical solutions are as follows: First, through the correction of the local structure of the components to meet the local accuracy, although this method is feasible, it has low efficiency and high cost. high, and in most cases only the position of some measurement points can be corrected; the second is to set up local shape-preserving tooling, and control the local deformation of components through high-rigidity shape-keeping tooling. This method is not only expensive, but also due to the The frame is accompanied by components, which greatly affects the implementation space of component attitude adjustment and positioning
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[0076] like figure 1 As shown, the components in this embodiment are aircraft flaps, the aircraft flaps are composed of a flap box section 1 and a flap intersection 2, and the aircraft flaps are installed on the rear beam intersection 4 of the wing rear beam 3 after the attitude adjustment and positioning. . In order to realize the lightweight structure of aircraft flaps, the flap box section 1, which accounts for most of the aircraft flaps, is often made of lightweight honeycomb material, which has weak rigidity and is easy to deform when subjected to force; the flap intersection point, which accounts for a small part of the aircraft flaps 2 High rigidity materials such as titanium alloys are often used, which are not easily deformed when subjected to force, so as to ensure the non-deformation and stability of the aircraft flaps during the telescopic movement. Therefore, the attitude adjustment and positioning process of aircraft flaps needs to improve the local accuracy as ...
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The invention discloses a method for improving the local position and attitude accuracy of components by optimizing and constructing measurement points. Build a transformation matrix, match the components at the initial position and the measurement points with different position tolerances to the target position, and obtain the construction points and their coordinates of the measurement points on the components after the attitude adjustment and positioning. By constructing the optimal criterion, the optimal measurement points are obtained from the construction points, the correction transformation matrix is constructed again for the optimal measurement points, and the components and the optimal measurement points before the attitude adjustment and positioning are corrected and matched to the target position through the correction transformation matrix, and the obtained Corrected construction points and their coordinates of the preferred measurement points on the components after attitude adjustment and positioning.
Description
technical field [0001] The present application relates to the field of aircraft digital measurement, in particular to the digital measurement and data processing technology in the attitude adjustment and positioning process of aircraft components. Background technique [0002] The attitude adjustment of the components refers to the rotation of the components around the three axes of the coordinate system XYZ; the positioning of the components refers to the movement of the components around the three axes of the coordinate system XYZ. Through attitude adjustment and positioning, the position and attitude of aircraft components can be uniquely determined, and high-precision assembly of aircraft components can be achieved. [0003] The aircraft is assembled from a large number of components through attitude adjustment and positioning. Some components need to meet higher local accuracy on the premise of satisfying the basic overall accuracy during the attitude adjustment and po...
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IPC IPC(8): G01B21/00
CPCG01B21/00
Inventor 巴晓甫侣胜武张莹莹杨晓锋
Owner XI'AN AIRCRAFT INTERNATIONAL