Patent ID: 7060951
Filing Date: 2006-06-13
Classification: B23P,B23Q

Abstract:
1. Apparatus for the thermal clamping of a rotary tool in a concentric locating opening, holding the shank of the rotary tool in an interference fit, of a tool holder, comprising: a) an apparatus base; b) an induction heating device with an induction coil unit for thermally expanding the tool holder for the insertion or/and removal of the rotary tool; c) a holder receptacle holding the tool holder in an axial position during the thermal expansion; and d) a device for setting a predetermined axial position of the rotary tool relative to the tool holder, having a stop for the rotary tool, which stop is guided on a guide of the apparatus base in such a way as to be displaceable parallel to the rotation axis of the tool holder held in the holder receptacle and can be deflected along a plane running perpendicularly to the displacement direction of the guide and which, in a first deflection position, limits the removal movement of the rotary tool relative to the tool holder held in the holder receptacle, and releases said movement in a second deflection position, it being possible for the tool stop, in the displacement direction relative to the tool holder or the holder receptacle, to be set to a position corresponding to the predetermined position of the rotary tool, wherein the induction coil unit, on the one hand, and the tool stop, on the other hand, are formed in such a way that, when the tool stop is in the first deflection position and while it is located in the position corresponding to the predetermined position, the rotary tool is manually accessible axially between the tool holder and the tool stop for an exclusively manually driven displacement movement in the removal direction.