FIELD: machine building.
SUBSTANCE: invention relates to machine building and can be used for processing, including finishing, of deep holes of internal surfaces of pipes. Device comprises a base, rigid supports for installation of the treated pipe along its base outer surface and a movable head with a spindle in which a grinding tool is fixed. Grinding tool is made in the form of at least two elastic plates located on the bushing, on the free ends of which there are fixed polishing elements. Spindle rests on the spindle support assembly, under which a roller support is installed.
EFFECT: high quality machining of holes with conical transitions from larger to smaller diameters is ensured, and the design is simplified.
5 cl, 2 dwg
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