| 摘要 |
A cutting tool has an S-shaped cutting insert retained in a corresponding insert pocket. The insert pocket has a longitudinal main axis extending in a forward to rearward direction. The cutting insert has a longitudinal first axis and a lateral second axis, with two opposite cutting portions and a clamping portion therebetween, arranged along the first axis. The insert pocket includes a forward clamping portion with a forward abutment surface, and a rear clamping portion with first and second rear abutment surfaces. Two side flanks of the cutting insert extend longitudinally oppositely, with first and second clamping surfaces located adjacent each side flank. The first and second clamping surfaces adjacent one side flank abut the first and second rear abutment surfaces, respectively. The first clamping surface adjacent the other side flank abuts the forward abutment surface. Neither of the side flanks abuts the tool holder. |
| 主权项 |
1. A cutting tool (100) comprising:
a tool holder (102) comprising opposite first and second side surfaces (108, 110), and an insert pocket (104) having a longitudinal main axis (M) extending in a forward to rearward direction (DF, DR) and a lateral pocket axis (S); and a cutting insert (112) having a longitudinal first axis (I) and a lateral second axis (L), and comprising two end surfaces (114) and a peripheral surface (116) therebetween, the cutting insert (112) having two opposite cutting portions (118) and a clamping portion (120) therebetween, arranged along the first axis (I); wherein: the insert pocket (104) comprises:
a forward clamping portion (124) coupled with the second side surface (110), located forward of the pocket axis (S), and having a forward abutment surface (126); anda rear clamping portion (128) coupled with the first side surface (108), located rearward of the pocket axis (S), and having first and second rear abutment surfaces (130, 132); two opposing side flanks (134) of the cutting insert peripheral surface (116) extend in opposite directions along corresponding cutting portions (118) and partially along the clamping portion (120), with first and second clamping surfaces (138, 140) located adjacent each side flank (134); in an assembled position of the cutting tool (100) the first and second clamping surfaces (138, 140) adjacent one side flank (134) abut the first and second rear abutment surfaces (130, 132), respectively, the first clamping surface (138) adjacent the other side flank (134) abuts the forward abutment surface (126), and neither of the side flanks (134) abuts the tool holder (102). |
