| 摘要 |
A cutting insert holder (12) for example ball nose end mill, and a cutting insert (14). The cutting insert holder (12) has a lower clamping jaw (24) resiliently connected to an upper clamping jaw (22). The upper clamping jaw is provided with two elongated spaced apart parallel grooves (40, 42). The cutting insert (14) has an upper surface (46) provided with two elongated spaced apart parallel ridges (70, 72). The cutting insert (14) is retained i n the cutting insert holder (12) by means of a screw (15) which passes through a through bore (28) in the upper jaw (22) of the insert holder (12), through a through bore (51) in the cutting insert (14) and threadingly engaging into a threaded bore (31) in the lower clamping jaw (24), and the two elongated ridges (70, 72) in the upper surface (46) of the cutting insert (14) coopera te with the two elongated parallel grooves (40, 42) in the lower surface of the upper clamping jaw. |
