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Control method for normally riveted curved member

A control method and riveting technology, applied in the direction of digital control, electrical program control, manufacturing tools, etc., can solve the problems of large normal verticality error, low degree of automation, unstable quality, etc., and achieve small normal verticality error, The effect of improving production efficiency and improving riveting quality

Active Publication Date: 2008-01-23
CHENGDU AIRCRAFT INDUSTRY GROUP
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of the prior art automatic drilling and riveting machine in the process of riveting aircraft skin curved parts, manual visual inspection, manual adjustment and control of normal verticality error, low efficiency, unstable quality and low degree of automation , to provide a control method for normal riveted curved parts with low cost, high efficiency, good reliability and stable riveting quality

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  • Control method for normally riveted curved member

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Embodiment Construction

[0018] See Figure 1. Due to the larger radius of the aircraft skin, the arc variation within a smaller range of the skin is smaller. If you want to detect whether the normal of a certain point is vertical, you can use a plane to horizontally cut four points with equal margins centered on this point. If these four points are just on this horizontal plane, that is, the height of these four points The difference is zero. It can be considered that the normal of the detected point is in the vertical position, that is, in the normal position. The smaller the margins between these four points, the greater the resulting accuracy, but the more difficult it is to detect and control. In practical application, the edge distance selected in this embodiment is four points of 200×200 mm, and the two can be considered at this distance. According to the above theory, measure the distance of four points on the margin of 200×200mm, feed back the measured data to the control system for process...

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Abstract

The utility model relates to a control mode for the rivet joint quintessence piece with normal direction. A square array is arranged on the same horizontal plane which is situated just above the spare parts. The square array is composed of four measuring transducers which are arranged via the diagonal line center of the automatic riveter axle. Four servo-moving parts hang the spare parts on the three points at both sides hereof via the iron chain, so as to construct a suspended spare parts carriage. Four sensors are respectively used to control the hoisting of four moving parts. According to actual conditions, the data processing software is adopted to ascertain the sensor value at the theoretical position of the normal direction. Also, as per the error, the tolerance zone is worked out to correspond with the observed value of the sensor. The vertical adjustment shall be made for the corresponding points of the spare parts. The riveting signal shall not be sent out until the altitude difference of the four points is limited within the allowable scope. The utility model introduces the three-point suspension spare parts carriage which replaces the normal direction control via the artificial vision, so as to realize the control for the normal direction riveting of the quintessence piece which can not be solved through the four-point side-by-side mounting spare parts. Therefore, the utility model has the advantages of low cost, high efficiency and reliability.

Description

technical field [0001] The invention relates to a method for automatically connecting and assembling aircraft parts in the aviation manufacturing industry, in particular to a control method for normal riveting of automatic drilling and riveting curved parts. Background technique [0002] With the increasing perfection and development of modern engineering technology, automation technology, digital manufacturing technology and artificial intelligence technology, automatic drilling and riveting technology has achieved a substantial breakthrough, and an automated assembly system has been initially formed. All developed countries in the aviation industry in the world have widely used the automatic drilling and riveting technology in aircraft assembly. The automatic drilling and riveting system mainly includes two parts: automatic drilling and riveting machine and bracket. The bracket system is used for positioning and clamping of assembly parts; automatic drilling and riveting m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/19B23P23/00
Inventor 周文强熊丽萍于方
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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