| 摘要 |
A cutting tool comprising a holder (12) having a slot-shaped, arcuate receptacle (16), with respectively a lower and an upper bearing surface (36, 38) attached to rigid clamping jaws (18, 20) of the holder (12), for the reception (16) of a cutting insert, (14) and a cutting insert (14) having an arcuate shank (22) with lower and upper locating face (32, 34), which cutting insert is arranged exchangeably in the receptacle (16), and having a cutting head (24) with cutting edge (26), which cutting head is disposed on a workpiece-side end (44) of the shank (22), wherein the arcuate receptacle (16) and the arcuate shank (22), measured respectively on the lower bearing surface (36) of the receptacle (16) and the lower locating face (32) of the cutting insert (14), extend respectively over at least 90°, wherein the receptacle (16) extends over a larger angular range than the shank (22) of the cutting insert (14), and wherein the shank (22) is held in the receptacle (16) such that the holder-side end (28) of the shank (22) is distanced from the holder-side end (30) of the receptacle (16). |
| 主权项 |
1. Cutting tool comprising:
a cutting insert having an arcuate shank and a cutting head which is arranged on a first end of the shank and comprises a cutting edge, wherein the shank comprises an upper locating face and a lower locating face, wherein the lower locating face extends over an angular range of more than 90°, and a holder having a rigid upper clamping jaw and a rigid lower clamping jaw which together define a slot-shaped, arcuate receptacle for receiving the cutting insert, wherein the cutting insert may be inserted into the holder at a front end of the receptacle, wherein the receptacle terminates within the holder at a back end, wherein the receptacle has an upper bearing surface which is arranged at the upper clamping jaw, wherein the upper bearing surface rests against the upper locating face of the cutting insert when the cutting insert is inserted into the holder, and wherein the receptacle has a lower bearing surface which is arranged at the lower clamping jaw, wherein the lower bearing surface rests against the lower locating face of the cutting insert when the cutting insert is inserted into the holder, and wherein the lower bearing surface extends over an angular range of more than 90′;wherein the receptacle of the holder extends over a larger angular range than the shank of the cutting insert, andwherein the shank of the cutting insert is held in the receptacle of the holder such that a second end of the shank opposite the first end is distanced from the back end of the receptacle. |
