Rotary tapered tool holder with adapter sleeve

A rotary tapered tool holder, comprising:

• a body including a first contact outer surface formed at a first, non-zero taper angle with respect to a central, longitudinal axis of the body, a second contact outer surface formed at a zero taper angle with respect to the central, longitudinal axis of the body, and a flange contact surface substantially perpendicular to the central, longitudinal axis of the body;
• and
• an adapter sleeve disposed about a portion of the body, the adapter sleeve including an inner surface and an outer surface, the inner surface including a first contact inner surface formed at the first, non-zero taper angle, a second contact inner surface formed at the zero taper angle, and an outer surface formed at a second, non-zero taper angle,
• wherein the second, contact outer surface of the body and the second contact inner surface of the adapter sleeve provide an axial stop and support band for the adapter sleeve when the rotary tapered tool holder is assembled into a clamping receptacle, and
• wherein the flange contact surface of the body engages a face contact surface of the clamping receptacle when the rotary tapered tool holder is assembled into the clamping receptacle.

A method of assembling a rotary tapered tool holder, the tool holder comprising a body including a first contact outer surface, a second contact outer surface, and a flange contact surface;

• and an adapter sleeve disposed about a portion of the body, the adapter sleeve including an inner surface and an outer surface, the inner surface including a first contact inner surface, a second contact inner surface, the method comprising the steps in the following order:
• (a) moving the tool holder body and the adapter sleeve in an axial direction in a clamping receptacle until the second contact outer surface of the body contacts the second contact inner surface of the adapter sleeve;
• (b) moving the tool holder body relative to the adapter sleeve in the axial direction in the clamping receptacle until the first contact outer surface of the body contacts the first contact inner surface of the adapter sleeve;
• and
• (c) moving the tool holder body relative to the adapter sleeve in the axial direction in the clamping receptacle to produce elastic deformation of the adapter sleeve until the flange contact surface of the body engages a face contact surface of the clamping receptacle.