SISTEMA DE ORIENTACAO DE SOLDA POR FRICCAO,MEMBRO FIXADOR E METODO PARA UNIR E ORIENTAR PRECISAMENTE UM FIXADOR TERMOPLASTICO

摘要

A friction weld orientation system 10 is provided for attaching and orienting precisely a series of thermoplastic fasteners 12 in substantially the same orientation relative to a substrate each time. The fastener 12 includes a base member 14 and a primary fastening element 16 formed integrally with the base member 14, which has a bottom surface adapted to be fused to the substrate by heat of friction induced by the application of rotative and axial forces applied to the fastener 12. A programmable DC servomotor 30 is provided for rotating the fastener 12 relative to the substrate and for automatically stopping rotation of the fastener 12 after a preset number of revolutions so that the primary fastening element 16 of the fastener 12 is precisely oriented in the same reference position each time in relationship to the substrate.