公开(公告)号：US20240307978A1

公开(公告)日：2024-09-19

申请号：US18120943

申请日：2023-03-13

申请人： Kennametal Inc.

发明人： Ruy Frota de Souza Filho ,  Alan J. Bookheimer ,  Austin Baer ,  Marcelo Euripedes Silva ,  Berthold Zeug ,  Michael Schuffenhauer ,  Bernhard Eckl

IPC分类号： B23B51/00 ,  B23B27/16

CPC分类号： B23B51/0007 ,  B23B27/1611

摘要： Rotary cutting tools are disclosed comprising shanks and replaceable cutting inserts are provided. The shank comprises a pocket which receives an interchangeable cutting insert. The pocket includes a floor with a central pin-receiving hole, opposing pocket centering walls, and torque transmitting pocket drive walls. The cutting insert has a relatively long rear pin receivable in the central hole of the shank. A head of the cutting insert includes insert centering surfaces that contact the pocket centering walls of the shank, and insert drive surfaces that contact the torque transmitting pocket drive walls of the shank. The configurations and sizes of the shank and cutting insert features are controlled to provide improved torque transmission, rigidity and stability during operation of the rotary cutting tools.

公开(公告)号：US20240278333A1

公开(公告)日：2024-08-22

申请号：US18112251

申请日：2023-02-21

申请人： Kennametal Inc.

发明人： Alan J. Bookheimer ,  Austin Baer ,  Logan Semnisky

IPC分类号： B23B31/22 ,  B23B29/04 ,  B23B31/107

CPC分类号： B23B31/22 ,  B23B29/046 ,  B23B31/1071 ,  B23B2231/46 ,  B23B2260/03

摘要： A clamping assembly includes a base member having an internal bore, a lock rod within the internal bore of the base member and moveable between an unlocked position and a locked position, the lock rod including a lock rod cam surface and a first bearing, a crank wheel having an axis of rotation and a third bearing, and a linkage including a second bearing comprising an elongated cavity formed in an outer surface, a fourth bearing and a cam surface at one end thereof.