Patent ID: 7062847
Filing Date: 2006-06-20
Classification: B23B,B23P,B23Q,Y10T

Abstract:
1. Shrinking arrangement for a tool holder which retains a rotary tool with a press fit in a central accommodating opening, comprising: a rail system fastened to a supporting base; a carriage coupled to the rail system; an accommodating unit, arranged on the carriage, for accommodating the tool holder such that an axis of the tool holder is substantially parallel to a longitudinal direction of the rail system; a mounting unit for mounting the rotary tool coaxially with the axis of the tool holder; a positioning drive for moving the carriage and the mounting unit relative to each other in the longitudinal direction of the rail system; and a temperature-controlling arrangement for the thermal expansion and for the subsequent cooling of the tool holder in the region of the accommodating opening, the temperature-controlling arrangement including a cooling unit and a transversely-displaceable heating unit, wherein the carriage follows a displacement path into a region of action of the temperature-controlling arrangement, and wherein the heating unit is transversely-displaced, relative to the displacement path, when the carriage is within the region of action of the cooling unit.