Patent ID: 6176649
Filing Date: 2001-01-23
Classification: B23B,Y10T

Abstract:
A toolholder for clamping a cutting insert, the toolholder comprising:a rigid base jaw having an upperside surface;an upper clamping jaw tapering towards a leading nose portion, said leading nose portion having natural resiliency, said upper clamping jaw having an underside surface with a major component abutment surface substantially co-directional with said upperside surface, a minor component abutment surface associated with said leading nose portion and a longitudinal recess spacing apart the major and minor component abutment surfaces, said minor component abutment surface being forwardly and downwardly directed with respect to said major component abutment surface towards said upperside surface whereby the height of a leading portion of said insert receiving slot is a minimum at said leading nose portion;said base jaw and said upper clamping jaw having unitary construction and defining therebetween a longitudinally extending insert receiving slot for releasably receiving the cutting insert in a predetermined position;said leading nose portion being so shaped and dimensioned that the natural resiliency of the leading nose portion initially urges the cutting insert to said predetermined position prior to clamping the cutting insert in said insert receiving slot and prevents outward longitudinal displacement of the cutting insert during a cutting operation.