Guide device, particularly for use in welding

摘要

Guide device (3) for use in the processing, in particular welding, of curved surfaces, in particular pipe surfaces, comprising a flexible elongate body (3) provided with a guide for processing means; tensioning means (4) for tensioning the flexible body around the curved surface; wherein the flexible body is provided along its length with indicators (8,8') arranged according to a determined pattern, this pattern being such that a determined position along the flexible body can be inferred on the basis of the detection of the indicators.
The elongate flexible body is further provided on its underside with spacers (7) with spring means wherein the width and length dimensions of the contact surface between each spacer and the curved surface are small relative to the width and length dimensions of the guide band.