Boring tool has cutting bit carrier slidably locatable - along face inclined to shank axis at end of tool shank for bore radius adjustment

摘要

The boring tool (1) comprises a cylindrical shank (2) with a radially adjustable eccentric pin (17) boring bit (5) carrier (3). This is secured (9,10) to the shank and has a face (8) in contact with a corresponding support face (7) at the end of the shank and a recess (4) for fitting (6) an interchangeable turnover bit (5). The face (7) is at an acute angle (alpha) to the shank axis (A) and has parallel grooves along its plane (E1-E1) of intersection, while the face (8) is correspondingly inclined (alpha) and has complementary grooves for sliding engagement. The fixing screws (9,10) are at right angles to the faces (7,8) and have their heads (9a,10a) and shanks (9b,10b) in slotted openings (11,12) of shank (2) and carrier (3) respectively. The cutting face of the bit is at right angles to the plane (E1-E1).