Bench and a method for magnetoscopically testing a turbine engine shaft

摘要

A bench for magnetoscopically testing a tubular part, the bench including a tool of elongate shape for inserting inside the part and carrying an endoscopic mechanism for ultraviolet illumination of the inside surface of the part and for observing any defects of the part, and an indexing mechanism co-operating by mutual engagement with external references of the tool that are regularly distributed over at least a fraction of its length to control accurately the advance and the position of the tool inside the part.

主权项

1. A bench for magnetoscopic testing of a tubular part, the bench comprising:
means for supporting the part and for turning the part; a tool of elongate shape carrying endoscopic means for ultraviolet illumination of an inside surface of the part and for observing any defects in the part; and means for supporting and guiding the tool to move in translation so as to be inserted inside the part, wherein the tool includes a plurality of external references that are regularly distributed over at least a fraction of its length and that define regular steps for advancing the tool in translation along the longitudinal axis of the part, the means for supporting and guiding the tool including indexing means that co-operate with the references of the tool by mutual engagement to control accurately an advance and a position of the tool in the part.