Multi-link welding head - has power supply bus=bars with rotary contacts passed through hollow swivelling spindles

摘要

Welding head with two electrodes parallel next to each other has the moving links supported on spindles designed as hollow shafts. The electrical leads for the electrodes are arranged inside the hollow spindles and consist of bus bars in the shape of tubes or bolts which are insulated relative to each other and are joined to each other along contact areas at right angles to the axis by split rotary contacts. This creates a space-saving power supply for the welding electrodes of a resistance welding head, where the welding head itself is extremely compact and is not obstructed in any of its movements.