HEAD FOR CASE HOLES BORING INTENDED FOR SECURING IN SPINDLE OF VERTICAL DRILLING MACHINE Russian patent published in 2015 - IPC B23B29/34 

FIELD: machine building.

SUBSTANCE: head contains casing with cone tail, holder, mechanism adjusting outlet of the cutter head, and cutters with tips directed towards opposite sides. At that the casing is made with two milled slots and sockolet with clamping screws welded above them symmetrically from one edge and from another edge. The holder is made with thread bush welded in the centre, and is rigidly connected at casing bottom, and cutters are located in the specified slots of the casing and are made with thread holes along full length. At that the mechanism of outlet adjustment of the cutter head is made in form of stops with holes, in holes the setting screws are hingedly installed, the screws are screwed in the threaded holes of the cutters, at that stops are welded in slots symmetrically from one and another edges, and as datum point of the cutter head outlet the holder end faces are used.

EFFECT: simplified design, higher processing quality.

4 dwg