Vibration welding appts. with reduced frame loads and mass - beam masses are balanced by coupling beams in oscillating direction to allow greater usable amplitude

摘要

The invention relates to a vibration welding appts. which produces frictional heat by action of a constant load on the vibrating components. In current designs of welding presses the holding tool is vibrated horizontally while the other tool holder is held stationary, an arrangement which requires heavy cross beams. An improved system envisages dynamic coupling of the cross beams in the direction of vibration, which balances the beam masses. The usable amplitude of vibration is greater, a smaller load is exerted on the press frame and the frame mass can be reduced. USE/ADVANTAGE - The welder is used to join thermoplastic components and is particularly suited to welding automotive components 2-3 m long.