The invention relates to a method for detecting cladding quality based on coaxial
powder feeding equipment of a
laser displacement sensor, which comprises the steps that firstly, a
servo motor moves according to a motion trail specified by a
processing program; secondly, a controller compares the
machine tool actual coordinate position, which is fed back by a
servo motor
encoder, of a cladding head relative to a cladding workpiece with the workpiece
signal position monitored by the
laser displacement sensor, whether the position deviation of the
machine tool actual coordinate position and theworkpiece
signal position exceeds a preset deviation range of signals collected by the
laser displacement sensor or not is judged, and then
signal processing is automatically conducted; meanwhile, thecontroller compares the
machine tool actual coordinate position, which is fed back by the
servo motor
encoder, of the cladding head relative to the cladding workpiece with the pre-planned instructionposition of the servo motor, judges whether the position deviation of the
machine tool actual coordinate position and the pre-planned instruction position exceeds the preset automatic adjustment deviation range of the servo motor or not, and then automatically adjusts the servo motor. The detection method disclosed by the invention can realize ultra-stable high-precision measurement on all workpieces which are difficult to detect.