| 摘要 |
A tool for the machine working of workpieces is more particularly provided for universal machines, which automatically work very small workpieces by different lathe working operations. A cutting insert 13 can be fixed in a tool holder 14 by means of a fixing screw 19. The cutting insert 13 is constructed as a reversing plate and has two conical receptacles for the conical gripping head 25 of the fixing screw 19. This reversing plate has several use possibilities, such as grooving, plunge and turn, threading, front turn, back turn and cut off. The central opening 30 in the cutting insert is connected by means of a slot 36 to the narrower trapezoidal surface 35 of the cutting insert, the slot 36 being sufficiently wide to fit over the shank of the fixing screw 19. Thus, after loosening the fixing screw, the cutting insert can be removed laterally and correspondingly fitted again. The screw 19 is captive and can also be operated from the back 48 of the tool holder 14. |
