Assembly a spindle demachine - tool of precision

摘要

P the invention relates to the mechanical construction. / p & & p & the assembly with a pin forming the subject of the invention is characterized in that it comprises means preventing the atmospheric air containing particles capable of soiling or pollute the fat to be sucked into the body 1 of the assembly pin through the labyrinth seal 5 of the rear cover 3, said means being in the form of a channel 10, the inlet orifice 11 communicates with the atmosphere, and the outlet orifice 12, with the free space 9 between the flange 8 of the spindle 7 and the front cover 2. / p & & p & the invention applies in particular to the spindle of the assemblies boring machines - the first finishing stands. / p