Werkzeughalter, insbesondere Schnellwechselfutter

摘要

Tool holder having an internal signal device (47) responsive to the relative movement between the head (14) and the housing (12). The device gives a signal should the tool (27) become damaged or destroyed. The signal device responds to an axial displacement of the head relative to the housing. The device has a barrier (46) which blocks the cooling medium flow, such that the resulting raised fluid pressure value serves as the breakdown signal.