Method for measuring precision of 1# frame of plane general assembly

A technology of precision measurement and general assembly, applied in measurement devices, optical devices, instruments, etc., can solve the problems of inhibiting the improvement of measurement accuracy and measurement efficiency, low degree of automation, poor reliability of measurement data, etc. Improve measurement efficiency, improve measurement accuracy, and improve the effect of automation

Inactive Publication Date: 2010-10-20
XIAN AIRCRAFT IND GROUP +1
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Problems solved by technology

Over the years, my country's aircraft 1# frame accuracy measurement method still follows the traditional optical measurement method, the degree of automation is low, and the reliability of the measurement data is poor, which seriously inhibits the improvement of measurement accuracy and measurement efficiency.

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  • Method for measuring precision of 1# frame of plane general assembly
  • Method for measuring precision of 1# frame of plane general assembly
  • Method for measuring precision of 1# frame of plane general assembly

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Embodiment approach

[0038] 1) Level the aircraft, that is, adjust the horizontal and longitudinal directions of the aircraft. The method is: arrange two measuring points symmetrically on the left and right wings of the aircraft. Two measurement points are arranged in the direction of the aircraft fuselage, and the height difference between the two points is within 0.5mm to achieve longitudinal leveling. Secondly, the measurement coordinate system of the laser tracker is the same as the assembly coordinate system of the aircraft general assembly station. Here, the laser The measurement coordinate system of the tracker refers to the spatial coordinate system automatically established by default after the laser tracker is turned on, while the assembly coordinate system of the aircraft general assembly site refers to the spatial coordinate system defined by the designer according to the layout of the aircraft general assembly on site. The two methods are: by measuring several public observation points...

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Abstract

The invention discloses a method for measuring precision of a 1# frame of a plane general assembly, which comprises the following steps of: 1) levelling a plane to ensure that a measuring coordinate system of a laser tracker is unified with an assembly coordinate system of a station position of the plane general assembly; 2) measuring a 2# measuring point and a 12# measuring point by using the laser tracker, and constructing a symmetrical axial line of the plane automatically by using a computer; 3) starting a measuring program to measure four drone points on the 1# frame by adopting a manual or automatic measurement mode; and 4) calculating deviations of the 1# frame relative to a construction horizontal surface of the plane and the symmetrical axial line of the plane. The method has the following advantages that: 1) compared with a conventional optical measurement method, a digitized measurement system can effectively improve the measurement precision and greatly improve the measurement efficiency; and 2) the automation and integration levels of the plane general assembly are further improved.

Description

technical field [0001] The invention relates to a measurement method, in particular to a method for measuring the accuracy of a 1# frame applied to the general assembly of an aircraft. Background technique [0002] As the installation reference and load-bearing part of the radar, the position accuracy of the aircraft 1# frame installation surface directly affects the installation quality and working performance of the radar system. Over the years, my country's aircraft 1# frame accuracy measurement method still follows the traditional optical measurement method, which has a low degree of automation and poor reliability of measurement data, which seriously inhibits the improvement of measurement accuracy and measurement efficiency. Contents of the invention [0003] The purpose of the present invention is to provide a 1# frame accuracy measurement method applied to aircraft general assembly in view of the shortcomings of traditional optical measurement technology and the ur...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/27G01B11/26G01B11/30
Inventor 边柯柯李江雄柯映林王青俞慈君曲巍崴宋西民孔翠萍任英武樊新田
Owner XIAN AIRCRAFT IND GROUP
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