Patent ID: 8729425
Filing Date: 2014-05-20
Classification: B23K,Y10T

Abstract:
1. An XY laser for an engraving laser assembly, the XY laser directing apparatus comprising: a pair of spaced Y carriages each configured for movement along a Y axis; a tubular rail defining a plenum in an interior of the rail, the tubular rail extending along a X axis normal to the Y axis between the two Y carriages; an X axis carriage attached to the tubular rail for axial movement along the rail; a focusing optic mounted to the carriage for focusing a laser beam to a focal point on an engraving plane, wherein the focusing optic is mounted external to the plenum and wherein as the X axis carriage moves axially of the rail a line is defined on the engraving plane by the movement of the focal point along the X axis; a gas inlet operatively associated with the tubular rail configured for attachment to a source of pressurized gas to provide pressurized gas to the plenum; and a plurality of holes in the tubular rail in fluid communication with the plenum spaced lengthwise along the X axis, the holes being configured so that, with a source of pressurized gas attached to the gas inlet, the plurality of holes each direct a stream of pressurized gas toward the line defined on the engraving plane.