BORING CUTTER Russian patent published in 2019 - IPC B23B27/00 

FIELD: metallurgy.

SUBSTANCE: boring cutter contains a round holder and a head with a cutting plate, which cutting edge is located in a plane of a horizontal axial section of the holder. Cutter is equipped with torsion bar, on first and second end of which there are splines, parallel to its axis, wherein first end of roller has smooth cylindrical band arranged between splines and roller body. Second end of the roller on the end side of the roller has a cylindrical shank with thread. Holder is made with a circular axial cavity, in its first end there is a cylindrical groove, in its second end a bushing with a splined hole is fixed. Torsion roller is installed in cavity of holder, and its cylindrical belt is located in cylindrical recess of cavity, its second end is located in sleeve with splined hole. Head of the cutter is fixed on splines of the first end of the torsion roller, and the roller is fixed in the holder by nuts installed on its threaded shank with a stop on the end of the bushing with the splined hole.

EFFECT: reduced vibration, higher quality of machined surface and reduced wear.

1 cl, 2 dwg