MANDREL Russian patent published in 2009 - IPC B23C5/26 

FIELD: technological processes.

SUBSTANCE: mandrel is intended for fixation of nozzled cutting tool, having longitudinal axis, and comprises body with tail, unwedging element and fastening screw. Besides body has seat protrusion with end surface inverted to cutting tool, and support surface installed perpendicular to longitudinal axis, which are intended for interaction with accordingly seat opening and end of cutting tool. Unwedging element has bushing with internal thread for interaction with fastening screw thread and is installed in cavity of body having inclined surfaces. In order to increase reliability of cutting tool fixation, inclined surfaces of body cavity are installed across to longitudinal axis in slots arranged near end surface of seat protrusion inverted to cutting tool. Besides every slot has exit to mentioned end surface of seat protrusion, and bulges are arranged on unwedging element for interaction with mentioned inclined surfaces on seat protrusion and seat intended for interaction with switch during installation of cutting tool on seat protrusion.

EFFECT: improved reliability of cutting tool fixation.

4 dwg