Method and apparatus for controlling the quality of deformations realised by a machine for forming the ends of tubes

摘要

The first step is to record the maximum stress exerted on the tube then check the quality of the shape and store results in a table. Then the tubes manufactured with stress within the correct range will be considered of good quality. Machine comprises tube holding means (1), shaping tool (9a) fixed on telescopic organ (10) can translate along the direction (x) of the tube length between a working position and a tube release position and a stress sensor (33). Independent claim is also included for a tube shaping machine.