Aviation structural member intelligent production line flexible measurement device and measurement method

Abstract

The invention discloses an aviation structural member intelligent production line flexible measurement device and measurement method, and belongs to the technical field of aviation flexible measurement. The single camera is combined with the control point technology to measure the robot repeated positioning error in real time, the conversion relation of the sensor coordinate system relative to theglobal coordinate system is corrected, the final measurement result is compensated, the system can well meet the measurement precision requirement, and high-precision (0.02 mm), high-flexibility andhigh-automation measurement of the gauge is achieved. The device comprises a flexible motion platform and a visual sensor, and is characterized in that the flexible motion platform comprises a base, afirst motion rod, a second motion rod and a third motion rod, the first motion rod, the second motion rod and the third motion rod are sequentially hinged through joints, the first motion rod is fixedly connected to the base, a controller is arranged in the base, and the end of the third moving rod is connected with the visual sensor.

Description

technical field [0001] The invention belongs to the technical field of aeronautical flexibility measurement, and in particular relates to a flexible measurement device and a measurement method of an intelligent production line of aeronautical structural parts. Background technique [0002] After years of hard work in China, breakthroughs have been made in aircraft digital assembly technology. However, affected by many factors such as the structural characteristics of the aircraft, the manufacturing precision of parts and tooling, the level of assembly technology, testing methods, development cycle and funding, several major domestic main engine manufacturers are still only making breakthroughs at certain points or lines. The layout planning of the aircraft is scattered, without a global concept, and it is difficult to form the scale of an automated flexible assembly production line. The relevant supporting software and hardware facilities cannot meet the needs of modern airc...

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Problems solved by technology

[0003] The present invention aims at the above problems, makes up for the deficiencies of the prior art, and provides a flexible measurement device and measurement method for the intelligent production line of aviation structural parts; the present invention uses optical precision measurement, and uses a single camera combined with control point technology to measure the repetitive positioning error of the robot in real time , modify the conversion relationship between the sensor coordinate system and the global coordinate system, and compensate the final measurement results, so that the system can well meet the measurement accuracy requirements, with high flexibility, high degree of automation and non-contact visual measurement, fast speed, high precision, The characteristics of high degree of digitalization overcome the shortcomings of traditional physical inspection tools such as high cost, poor flexibility, and low degree of automation, and realize high-precision, high-flexibility, and high-automation measurement of inspection tools

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