DEEP HOLE MANDRELLING DEVICE Russian patent published in 2015 - IPC B23D37/10 B23P9/00 

FIELD: metallurgy.

SUBSTANCE: device consists of the housing with a hole for accommodation of mandrel and pusher of its driver. On the housing the pusher guide is fixed, the housing of which has a central through rhombic hole for the pusher guiding and crosswisely located with reference to it and parallel to it through rhombic holes for guiding of four rolling pin, connected with a crosswise cross-beam. The latter is fixed in cuts between rhombic holes with a possibility of interaction with the pusher. The symmetry axes of cuts pass through diagonal planes of these holes. The top ends of rolling pins are pressed into crossbar, connected with the driver stem.

EFFECT: improving reliability and enlarging functional capabilities.

3 dwg