Patent ID: 11897038
Assignee: ISCAR, LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A face grooving holder (102) comprising:
a shank portion (104) connected to a blade holder clamping portion (106);
the blade holder clamping portion (106) comprising:
a clamping longitudinal axis (C1) establishing a clamping forward-to-rearward direction (CF, CR);
a clamping vertical axis (C2) perpendicular to the clamping longitudinal axis (C1) and establishing a clamping upward-to-downward direction (CU, CD);
a clamping lateral axis (C3) perpendicular to both the clamping longitudinal axis (C1) and the clamping vertical axis (C2), and establishing a clamping-first-side-to-clamping-second-side direction (CS1, CS2);
a clamping front end (130) and a clamping rear end (132) spaced apart from one another along the clamping longitudinal axis (C1);
a clamping top side (122) and a clamping bottom side (124) spaced apart from one another along the clamping vertical axis (C2);
a first clamping side (126) and a second clamping side (128) spaced apart from one another along the clamping lateral axis (C3), the first clamping side (126) connecting the clamping top side (122) and the clamping bottom side (124); and
a blade clamping seat (108) formed along the second clamping side (128) and opening out to the clamping front end (130);
the blade clamping seat (108) comprising:
a flexibility groove (136) opening out to both the second clamping side (128) and the clamping front end (130);
a top clamping wedge surface (138) located upward of the flexibility groove (136);
a bottom clamping wedge surface (144) located downward of the flexibility groove (136);
a planar holder abutment surface (140) extending from the bottom clamping wedge surface (144) to the flexibility groove (136); and
a forwardly facing back stopper surface (146), located between the top clamping wedge surface (138) and the bottom clamping wedge surface (144) along the clamping vertical axis (C2), and rearward of the holder abutment surface (140) along the clamping longitudinal axis (C1);

wherein the top clamping wedge surface (138) extends in a direction along the clamping longitudinal axis (C1) farther than in directions along both the clamping vertical axis (C2) and the clamping lateral axis (C3);
wherein the bottom clamping wedge surface (144) extends in said direction along the clamping longitudinal axis (C1) farther than in directions along both the clamping vertical axis (C2) and the clamping lateral axis (C3); and
wherein in a front end view of the face grooving holder (102):
the bottom clamping wedge surface (144) is located downward of the top clamping wedge surface (138) along the clamping vertical axis (C2), and farther than the top clamping wedge surface (138) in the second side direction (CS2) along the clamping lateral axis (C3); and
the top clamping wedge surface (138) and the bottom clamping wedge surface (144) converge in a direction away from the holder abutment surface (140).