| 摘要 |
A toolhead (1) for a multi-axis machine tool (3) incorporates a tool-holder (13) rotatable about the tool axis (J) and attached to the spindle (12) of a spindlehead (2), also a stop cage element (18) mounted slidably to the tool-holder (13), which is furnished with a collar (24) presenting an active surface (19) set transversely to the tool axis (J) and offered to the surface (S) of a workpiece. The stop cage element (18) alternates between a first operating position in which the active surface (19) is located forward of a countersink portion (17) presented by the tool (U), considered in relation to the feed direction (20) of the spindlehead (2) as it approaches the surface (S) of the work, and a second operating position in which the countersink portion (17) will be located forward of the active surface (19), at least in part. The axial position of the stop cage element (18) relative to the tool-holder (13) is monitored continuously by a sensing system (30). <IMAGE> |
