Pipe bending method involves optically determining distance between pipe and bending plate after bending by relating detected optical value to bending angle

摘要

The method involves holding the pipe (5) between a bending plate (2) and a counter holder (3). The distance between the pipe and the bending plate is determined optically after bending. The reflection of light directed onto the pipe is converted into a photocurrent and a detected optical value is related to a bending angle detected at the bending plate. An Independent claim is also included for the following: a device for implementing the method.