Patent ID: 8573899
Filing Date: 2013-11-05
Classification: B23B,Y10T

Abstract:
1. A clamping apparatus for a cutting insert, comprising: a tool holder comprising a cutting insert pocket and a mounting bore exposed through a portion of the pocket; a clamp lever comprising a clamp portion inserted through a through-hole of the cutting insert and a lever portion placed in the mounting bore; and a fixing screw exerting pressure on the lever portion of the clamp lever to secure the cutting insert on the tool holder, the fixing screw being fastened through a screw hole which extends downwardly from a side surface of the tool holder to the mounting bore, wherein one end of the fixing screw is provided with a pressure-applying surface substantially perpendicular to the rotational axis of the fixing screw, and wherein a side surface of the lever portion of the clamp lever is provided with an inclined surface which makes contact with the pressure-applying surface of the fixing screw.