公开(公告)号：US11931848B2

公开(公告)日：2024-03-19

申请号：US17405187

申请日：2021-08-18

Applicant: ZIPPY ROBOTICS, INC.

Inventor： Rocco J. Tuccio

IPC: B23B31/28 ,  B23B31/00 ,  B23Q1/70 ,  B23Q5/10 ,  F16C19/54

CPC classification number: B23Q5/10 ,  B23B31/005 ,  B23Q1/70 ,  F16C19/54 ,  F16C2322/39

Abstract: A high-speed low runout spindle assembly is provided. The spindle assembly includes a friction drive wheel configured to be coupled to an output shaft of a motor. The friction drive wheel is configured and disposed to directly contact a shank of a bit. A set of bearings is configured to contact the shank of the bit. A bit clamp assembly includes a clamp bearing having a central through-hole dimensioned to accept a lower portion of the shank of the bit. The bit clamp assembly is configured to hold the bit in contact with the set of bearings.