US 11,998,994 B2
Holder for holding a plate-like member and cutting insert
Shunsuke Miyazawa, Iwaki (JP)
Assigned to TUNGALOY CORPORATION, Fukushima (JP)
Filed by TUNGALOY CORPORATION, Fukushima (JP)
Filed on Nov. 3, 2021, as Appl. No. 17/518,196.
Claims priority of application No. 2021-000529 (JP), filed on Jan. 5, 2021.
Prior Publication US 2022/0212269 A1, Jul. 7, 2022
Int. Cl. B23B 27/16 (2006.01)
CPC B23B 27/16 (2013.01) 8 Claims
OG exemplary drawing
 
1. A holder that holds a plate-like member and an insert used for cutting machining, wherein:
the plate-like member comprises
a plurality of insert pockets, wherein the insert is configured to be held by any one of the plurality of insert pockets; and
recess portions formed by partially cutting off a portion in a predetermined shape from an insert pressing portion constituting an outer side of the plurality of insert pockets in each of a plurality of apex portions of the plate-like member, respectively corresponding to the plurality of insert pockets, and the plate-like member has a polygonal shape and is used for cutting off and/or grooving machining,
wherein the holder comprises a holder main portion and a support portion; and
the holder is configured so that the plate-like member can be installed in a state where a surface portion formed in one of the recess portions is supported by a corresponding surface portion of the support portion of the holder.