Laser double-beam welding tool for outer side of aircraft panel

Abstract

The invention discloses a laser double-beam welding tool for the outer side of an aircraft panel, and belongs to the laser welding technology. The welding tool comprises a base and a support, cross beams are fixed to the support, each cross beam is provided with a clamping plate, and a plurality of pressing plates which are evenly arranged are fixed to each set of the clamping plates. The base is provided with at least one group of copper sheets for bearing stressed skin, and the bottom of each copper sheet is provided with a pressure sensor. Position sensors are arranged on the cross beams and the support, the position sensors on the support are used for detecting the position relation between the cross beams and the support, and the position sensors on the cross beams are used for detecting the position relation between the cross beams and the clamping plates. The position corresponding relation of the cross beams and the support and the clamping plates can be determined through position induction, the welding efficiency of a stringer and the stressed skin is improved, the pressure sensors are arranged below the copper sheets, the pressure applied to the stressed skin by pressing tongues on the clamping plates can be detected, damage to the stressed skin due to the fact that the applied pressure is too large is effectively prevented, and the product percent of pass is improved.

Description

technical field [0001] The invention relates to laser welding technology, in particular to a laser double-beam welding tool for the outer side of an aircraft wall plate. Background technique [0002] The principle of laser welding can be divided into heat conduction welding and laser deep penetration welding. The principle of heat conduction laser welding is that laser radiation heats the surface to be processed, and the surface heat diffuses to the inside through heat conduction. By controlling the width, energy, peak power and repetition of laser pulses Frequency and other laser parameters can melt the workpiece and form a specific molten pool. [0003] Modern aircraft generally have a complex double-curvature aerodynamic shape, and there are a large number of parts whose shape changes with the curvature of the shape, among which the long stringer is the most typical. The wing stringers of the aircraft are closely attached to the inner surface of the wing skin and distrib...

AI Technical Summary

Problems solved by technology

[0004] In the process of connecting the long truss to the wing skin, laser welding is generally used, and the laser welding device is usually operated manually, and the products to be welded are also positioned manually. During the positioning process, the supports, beams and clips The assembly between the plates is not in place, and the precise docking of the girders and skins of different lengths and models cannot be realized, which reduces the welding quality and even scraps, seriously reducing production efficiency

In addition, it is impossible to determine the degree of contact between the stringer and the skin by applying pressure on the beam through manual judgment to make the contact between the stringer and the skin, and excessive force may easily cause damage to the skin

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