Patent ID: 8777530
Filing Date: 2014-07-15
Classification: B23B,B23Q,Y10T

Abstract:
1. Tool holder for holding a tool and for rotationally coupling the tool to a drive spindle of a machine tool, wherein: a) the tool holder has a conduit for directing a coolant and/or lubricant through to the tool, b) the tool has a conduit section for directing the coolant and/or lubricant to a machining point, and c) in a fitted state of the tool in the tool holder, the conduit of the tool holder is in continuous contact with the conduit section of the tool at a coupling point, such that coolant and/or lubricant flows or can flow from the conduit of the tool holder into the conduit section of the tool, characterized in that d) there is a gas feed line, which directs compressed gas, into the region of the coupling point in such a way that the compressed gas, acts at the coupling point on the outer surface of the conduit of the tool holder and on the outer surface of the conduit section of the tool and prevents an escape of coolant and/or lubricant at the coupling point.