Facing head and method for clamping and releasing a tool in or from a tool holder of the facing head

摘要

The invention relates to a facing head (15) and a method for inserting and/or removing a tool from a tool receiving device (36) of the facing head (15). The facing head (15) has a spindle coupling device (17) for exchangeable coupling to a spindle mount (18) of a work spindle (11) of a machine tool (10). The facing head (15) has a housing body (16) on or in which a facing slide (23) is movably guided, preferably linearly guided. The facing slide (23) carries the hydraulically controllable tool holding device (36). The tool receiving device (36) or the facing slide (23) has a hydraulic connection (45, 47) which is fluidically coupled to an associated hydraulic control connection (66, 67) of the housing body (16) in a tool changing position (III) of the facing slide (23). is. Outside the tool changing position (III), the fluidic connection between the hydraulic connection (45, 47) and the associated hydraulic control connection (66, 67) is interrupted. In the tool changing position (III) the tool receiving device can be switched between a holding state holding the tool (37) and a release state (F) releasing the tool (37) by applying hydraulic pressure appropriately.