Mechanical system for automatic guidance of one or several torches of a unit of the arc welding.

摘要

The system for mechanically guiding one or more electrodes (T1, T2) of an arc-welding appliance comprises a principal carriage (3) and a secondary carriage (7) articulated to the principal carriage about two pivot axes (A1, A2) and equipped with an electrode (T1, T2) support-holder (9) and a guiding device (10) comprising two sensing members (11a, 11b) which are respectively in contact with the two lateral walls (4a, 4b) of the groove (4) bounded between the two chamfered end surfaces of two metal parts (5, 6) to be welded to each other and which sensing members are respectively located towards the front and towards the rear of the secondary carriage (7), thereby taking into account the displacement direction (D) of the principal carriage (3). …IMAGE…