Patent ID: 6227953
Filing Date: 2001-05-08
Classification: B21B,B23K,B24B

Abstract:
An apparatus for removing burrs on a welded part in a billet where billets are joined together by flash butt welding in a continuous rolling process, said apparatus comprising:at least two fixed grinding machines, including a first fixed grinding machine and a second fixed grinding machine;a first pair of facing grinders which are located in said first fixed grinding machine and which are separated by a distance A;a second pair of facing grinders which are located in said second fixed grinding machine and which are separated by a distance B;wherein the distance B is shorter than the distance A along a travelling direction of the billet from an upstream side to a downstream side;wherein rotational axes of the grinders in said at least two fixed grinding machines are installed at an inclined position against a direction of a travelling line of the billet; andwherein the grinding machines are adapted to be driven by a motor that makes use of a fly-wheel, and grinding is achieved in a moment as the billet passes through the grinding machines.