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Programming method for airplane thin-wall curved surface skin automatic drilling and riveting

A technology of automatic drilling and riveting and programming method, applied in the direction of instruments, simulators, control/adjustment systems, etc., can solve problems such as poor assembly effect, difficulty in meeting requirements, geometric deformation, etc.

Active Publication Date: 2015-12-23
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The disadvantage of the method disclosed in this patent document is that it is suitable for clamping thin-walled curved skin of an aircraft. Due to the complex shape of the skin and the thin wall plate, it is easy to be affected by external forces during the clamping and positioning process, resulting in geometric deformation. The position, posture and outline of the actual clamping of the leather are quite different from the theoretical digital model, resulting in poor assembly effect and difficult to meet the requirements

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  • Programming method for airplane thin-wall curved surface skin automatic drilling and riveting
  • Programming method for airplane thin-wall curved surface skin automatic drilling and riveting
  • Programming method for airplane thin-wall curved surface skin automatic drilling and riveting

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Embodiment Construction

[0024] see Figure 1-Figure 6 , online teaching: figure 2 For the geometric model diagram of the automatic drilling and riveting machine, the skin is clamped and fixed on the bracket of the drilling and riveting machine, and the laser displacement, vision, and normal sensors installed on the drilling and riveting head are used to measure the skin feature points. The position of each axis completes the normal posture adjustment and position alignment of the drill riveting head to the skin feature point, and then the numerical control system reads out the axis data X, Y, Z1, Z2, A corresponding to the feature point.

[0025] Such as figure 2 As shown, the drilling and riveting machine consists of five machine axes X, Y, Z1, Z2, and A, which are not standard geometric axes X, Y, Z, A, and B. Because when Z1 and Z2 move synchronously, a translation axis Z is formed. When Z1 and Z2 move asynchronously, not only the translation axis Z is synthesized but also the rotation axis B ...

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Abstract

The invention discloses a programming method for airplane thin-wall curved surface skin automatic drilling and riveting. The programming method comprises preprocessing: after an airplane skin is clamped and positioned, normal adjustment and teaching acquisition are performed on the characteristic points of the deformed skin online via multiple sensors arranged on a drilling and riveting bracket, the axial data of the teaching characteristic points are preprocessed into three-dimensional space coordinate system coordinate values, and curve graphic fitting is performed on the three-dimensional space coordinate point positions of the characteristic points by means of CAD; reverse synthesis: a shape model of an actual deformed skin fastener is synthesized, and then the space coordinate system coordinate values and the normal angles of all the drilling and riveting points are extracted via matching through combination of the technological model of the skin fastener; and post-processing: the axial data of an automatic drilling and riveting machine corresponding to all the drilling and riveting pints are calculated according to the structural geometrical size of the drilling and riveting bracket so that the real deformed skin automatic drilling and riveting processing program can be obtained. Programming is performed on the actually deformed airplane skin so that the assembling effect of the airplane thin-wall curved surface skin which is liable to deform can be greatly enhanced.

Description

technical field [0001] The invention relates to the technical field of automatic drilling and riveting of aircraft skins, in particular to a programming method for automatic drilling and riveting of aircraft thin-walled curved skins. Background technique [0002] With the rapid development of aircraft skin automatic drilling and riveting equipment, automatic drilling and riveting programming technology is the core software technology for automatic processing, and relevant research and manufacturing institutions at home and abroad are competing to carry out technical research; automatic drilling and riveting programming technology is to meet the requirements of skin assembly Edit it into a processing code that can be recognized by the drilling and riveting machine. The difficulty of this technology is that the automatic drilling and riveting of the aircraft skin is to adapt to the adaptive processing of the skin surface, which is different from the plastic processing of the sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
Inventor 申少泽
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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