Double-camera measurement device and measurement method for cabin pin hole abutting corner

Abstract

The invention discloses a double-camera measurement device and measurement method for a cabin pin hole abutting corner and mainly solves a problem of inconvenience in measurement on the cabin pin holeabutting corner due to the space limitation in the prior art. The double-camera measurement device comprises a camera supporting part and a calibration frame; the camera supporting part comprises a camera beam (10) and a camera upright (11); the camera beam (10) is vertically connected with the camera upright (11); a camera jack stay is mounted on the camera beam; two sliding supporting blocks (5) which can rotate around the camera jack stay are symmetrically mounted at both sides of the camera jack stay and are used for mounting two industrial cameras (6, 12); the calibration frame is positioned opposite to the camera upright and comprises a positioning strip (1), a calibration frame upright (2), a calibration frame beam (3) and calibration plates (4); the calibration frame upright is vertically mounted next to the positioning strip; the calibration frame beam and the calibration frame upright are mounted in a mutually vertical mode; and the calibration plates are mounted at the front side and the reverse side of the calibration frame beam. The double-camera measurement device and measurement method are high in measurement accuracy, can implement non-target measurement and can beused for assembling of airplanes and guided missiles.

Description

technical field [0001] The invention belongs to the technical field of spacecraft, and further relates to a measuring device and a measuring method for the butt joint angle of cabin pin holes, which can be used in the assembly of aircraft and missiles. Background technique [0002] The docking of cabin sections of aircraft, missiles and other spacecraft is a key link in its manufacture, and its assembly quality determines its overall performance to a certain extent. The production mode of the missile is small batch and many types. Therefore, the missile compartment assembly system needs to have certain flexibility to ensure the quality of its production and improve the assembly efficiency. In the cabin docking technology, the measurement of the six degrees of freedom of the cabin pose, that is, the displacement and rotation angle in the three directions of x, y, and z, should be the focus of attention. Only by accurately measuring the cabin pose and meeting the accuracy re...

AI Technical Summary

Problems solved by technology

The above-mentioned laser tracker, laser radar and other methods all have the disadvantages of complex structure and high cost

[0004] He Xiaoyuan and Dong Shuai applied for a patent "a dual-camera measurement method for precise calibration of the distance between optical marking points" (application number CN201610836001.9, application date 2016.9.30, authorization announcement number CN106289086A) application disclosed a A dual-camera measurement method for precise calibration of the distance between optical marking points, which uses a single-axis electric displacement platform to calibrate the relative positional relationship of the dual cameras, improving the calibration accuracy of the binocular stereo vision system and the three-dimensional coordinate measurement accuracy of optical marking points , in order to achieve the purpose of accurate measurement of the distance between optical marking points, this method cannot achieve target-free measurement and has the limitation of only measuring the distance

[0005] Liu Yi disclosed an automatic measurement method based on dual cameras in his patent application "Automatic measurement method based on dual cameras" (application number CN201510521145.0, application date 2015.8.24, authorized announcement number CN105115423A), which includes cameras, The measured object, a computer equipped with software for measuring system development, the camera is a first camera and a second camera, the first camera is installed directly above the vertical direction of the measured object, and the second camera is installed on On the side of the horizontal and horizontal directions, the first camera installed in the vertical direction measures the length and width values ​​of the object through the top view, and the second camera installed in the horizontal direction faces the object to measure the height of the object. Although this method can measure the object size Measure, but not the 3D pose of an object

Images