| 摘要 |
<p>The invention relates to a cutting tool intended for parting and grooving operations, including a holder (1) for a narrow cutting insert (2) which is clampable in a seat between a blade tongue (7) and a clamping finger (8), which extend in the extension of lower and upper, thicker front parts (3, 4) of the holder. A gap (5) separates the front parts (3, 4) in order to enable turning of the same towards each other from a starting position, more precisely by means of a clamping mechanism built-into the holder (1). According to the invention, the clamping mechanism comprises on the one hand a drawbar (13), one end portion of which is fixed in one of the front parts (4) and the opposite end portion of which is movable in a bore in the second front part (3) and formed with a head (17) having a conical surface (20), and on the other hand a tightening screw (14), having a male thread (22) which is in engagement with a female thread in a hole (29) formed in the second front part (3), which extends at an angle to the bore for the drawbar and ports in a side (12) of the second front part, whereby the tightening screw at tightening is pressable with an inner end against the cone surface (20) of the head. <IMAGE></p> |
