Coarse/fine adjustment boring head
AssigneeGTE Valenite Corporation
InventorCarl E. Hunt
Life of this patent
Estimating the term…
Abstract
Coarse/fine adjustment boring head employing a transverse sleeve threaded into and extending through a boring head body providing coarse incremental radial adjustment of an insert cartridge, axially oriented within a sleeve, together with a fine radial adjustment of the cartridge relative to the sleeve effected through a differential screw having differential pitch threads with lead in the same direction.
Claims15
Coarse/fine adjustable boring head comprising a body having a transverse threaded bore, a through sleeve with externally threaded head adjustable within said bore to establish a coarse transverse adjustment for said sleeve, cutting tool cartridge means nonrotatably transversely adjustable within said sleeve to establish a fine transverse final boring diameter adjustment, unidirectional lead differential pitch threaded holes respectively in said head and an adjacent end of said cartridge means, and matching differential pitch screw means engaging respectively said threaded holes, whereby said sleeve may be coarse adjusted in single revolution external thread pitch increments, and said cartridge means may be fine adjusted relative to said sleeve through rotation of said differential screw in continuous whole or partial revolution increments.
Boring head of claim1 wherein said transverse threaded bore extends at an oblique angle relative to a boring axis, and said cartridge means includes a head for seating said insert at a position where its cutting point projects radially and axially to the extremities of said boring head.
Dependencies are inferred from the claim text.