Butt weld for flat plates - grinding wheel cuts groove along rear of initial weld

摘要

A groove is cut along the back side of a butt held seam between two melting metal plates using a grinding disc which can be pivoted about a swivel pin and be moved along its axis of rotation. Mechanisms press the grinding disc against the weld seam so that while moving along the weld seam, the grinding disc grinds a groove (22) of regular cross section. The disc and the drive motor are arranged on a holder mounted on a slide carried by an arm, which has a slide guide and can pivot about the swivel pins. A support roller is tilted to a further lever arm which is pivoted to adjust the spacing between the grinding disc axis and the parallel support roller axis relative to the first arm.