Patent ID: 7367097
Filing Date: 2008-05-06
Classification: B23B,B23P,Y10T

Abstract:
1. A tool mounting device for a turning center in which: rotating tools and turning tools are exchanged and used, wherein a mounting engagement unit for engaging a tapered shank provided to a base end of a tool is disposed on a main shaft that is rotatably mounted on a ram via a bearing unit; and a clamp mechanism is disposed for clamping a clamping convexity of said tapered shank by retracting a drawbar and drawing in and engaging said tapered shank to the mounting engagement unit to fix tools to said main shaft so as to allow the shank to be clamped and released based on the reciprocating control of said drawbar, comprising: a positioning strike receiving portion provided to said ram, which a positioning outer surface of the turning tool strikes when at least said turning tool is fixed; and the structure and arrangement of the bearing unit being set so that said positioning outer surface strikes said positioning strike receiving portion when said drawbar is retracted, and said bearing unit is deformed by the retraction force applied to the drawbar by the clamping action of said clamp mechanism because the retracted position of said drawbar is maintained in the struck state, and said mounting engagement unit exerts elastic contact on said tapered shank.