A flexible resistance welding device for thermoplastic composite materials

Abstract

The invention discloses a thermal plastic composite material flexible resistance welding device. The device comprises a servo driving motor, a precision roller guiding rail linear movement system anda thermal plastic composite material resistance welding platform, wherein the precision roller guiding rail linear movement system is of a rectangular structure, the top face is provided with a rack in the length direction, and power output is provided by the servo driving motor; the thermal plastic composite material resistance welding platform can be installed on the precision roller guiding rail linear movement system by moving along the rail on the precision roller guiding rail linear movement system. The device has the advantages that welding lower pressure is provided through the servo pressure system, a to-be-welded part is positioned and resistance heating are conducted by a key type flexible electrode module, welding current is guided by connecting the electrode module, and therefore the purpose of thermal plastic composite material static and continuous dynamic flexible resistance welding is achieved.

Description

technical field [0001] The invention belongs to the technical field of composite material connection, in particular to a thermoplastic composite material flexible resistance welding device. Background technique [0002] With the development of advanced thermoplastic composite material preparation technology and the reduction of manufacturing cost, a variety of high-performance thermoplastic composite materials have been tried on foreign models, such as Gulfstream V rudder rib and leading edge, Airbus A380 aileron wing rib and elevator auxiliary For parts such as wing ribs, the new wing leading edge skin and rib connection method used on Airbus A340 and A380 models adopts advanced thermoplastic composite material welding technology, which can avoid the structural increase caused by traditional mechanical riveting technology. The problem of weight and stress concentration at the joint can be shortened, and the process cycle of the bonding technology can be shortened and the re...

AI Technical Summary

Problems solved by technology

However, the material to be welded is only fixed on the welding platform by the strip pressure plate, which cannot guarantee the stability of the welding electrode contact

At the same time, the copper block electrodes cannot be accurately positioned and installed, which leads to uneven current density and local overheating of the composite material, which affects the mechanical properties of the welded joints

He Zhenpeng and Wang Hongyang designed a simple mechanical thermoplastic composite welding device, which can manually adjust the vertical height of the welding platen and the clamping width of the welded part, but the welding electrode uses an integrated double-layer copper plate, so that the electrode contact area cannot be adjusted. Therefore, it is difficult to deal with the welding work of joints of different sizes, and can only complete the task of static resistance welding, and cannot realize dynamic welding

[0004] To sum up, the existing thermoplastic composite resistance welding devices still lack the flexible adjustment ability of process parameters and clamping tooling, resulting in poor quality and lack of stability of thermoplastic composite resistance welding joints

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