| 摘要 |
FIELD: technological processes. ^ SUBSTANCE: machine comprises bed plate, spindle mandrel carrying faceplate for installation of item, support with cutter holder, guide entered inside item until stop against centre of faceplate and arranged with internal holder to make it possible to move carriage along with cutting tool by means of pusher connected to cutter holder of support, adjustable support to fix the second end of guide with the possibility of deviation when set at a certain angle in horizontal plane. In order to provide for high-quality boring, adjustable support consists of fixed part rigidly attached to bed plate, movable part moved by means of helical pair, and hinged rotary device intended to interaction with item, and connection of pusher with boring head and support cutter holder is arranged as hinged. ^ EFFECT: high-quality boring of lengthy items. ^ 2 dwg |
