'an orbital type apparatus with cam device supported by a laser vision sensor based seam tracking means for welding of a stub to a header in a boiler system'

摘要

The invention relates to an orbital type apparatus with cam device supported by a laser vision sensor based seam tracking means for welding of a stub to a header in a boiler system, the apparatus comprising a mounting assembly (4) having a cross slide and one each weld head assembly on both sides i.e. (right and left). Each head assembly includes a flexible arrangement with a long narrow groove nozzle (5, 6) with controllable sensor based tracking means (7). Each head assembly further includes a plurality of orbital weld head (3) for welding a stub (2) to a header (1), wherein the two head assemblies are simultaneously operable at 180° each in opposite directions to carry out the orbital welding, and wherein the sensor is fixed outside the narrow groove to guide the torch for carrying out welding.