Patent ID: 8800413
Filing Date: 2014-08-12
Classification: B23B,Y10T

Abstract:
1. A cutting unit comprising: a holder comprising a supporting block including a cut out at one end in one face; and a plurality of through holes at predetermined places on the cut out; a head assembly connected to said block, conforming to a shape of said cut out, said head assembly comprising an insert pocket to accommodate a cutting insert, and a through hole at its center for connecting with the holder; fastening means passing through the holes of the supporting block and head assembly; and a plurality of pins passing through the holes of the holder, wherein a position of said pins is varied to displace the head assembly to vary a rake angle of the cutting unit, and wherein the fastening means comprises a ball bolt comprising a threaded rod connected with a ball screw comprising a threaded ball head and a hexagonal protrusion.