Patent ID: 6340125
Filing Date: 2002-01-22
Classification: B02C,B07B,B23Q

Abstract:
An apparatus for breaking metallic chips produced by cutting metallic workpieces, with a machine tool, into fragments, comprising:an outer structure; an inner structure which is provided inside the outer structure such that the inner structure is concentric with the outer structure; a rotary drive device which rotates, in a rotating direction, at least one of the inner and outers structures relative to the other of the inner and outer structures, about a common centerline of the inner and outer structures; then outer structure including a cylindrical portion, and an outer breaking portion which projects from an inner circumferential surface of the cylindrical portion; and the inner structure including an inner breaking portion which cooperates with the outer breaking portion to define a gap therebetween whose width cannot cause the chips to be sheared by the inner and outer breaking portions, wherein at least one of the outer breaking portion and the inner breaking portion comprises a plurality of breaking blocks each one of which is detachably attachable independent of the other breaking block or blocks, wherein the plurality of breaking blocks are provided along a line which inclined relative to a reference direction parallel to said common centerline, and wherein the outer breaking portion comprises the plurality of breaking blocks, and the cylindrical portion of the outer structure has a plurality of through-holes which are formed through a thickness of the cylindrical portion, and wherein the breaking blocks are externally fitted in the through-holes, respectively, and thereby fixed to an outer circumferential surface of the cylindrical portion.