NEEDLE-MILL-STRENGTHENING TOOL FOR PROCESSING OF SPIROID WORM Russian patent published in 2010 - IPC B24B39/04 B23F13/02 

FIELD: technological processes.

SUBSTANCE: invention relates to technology of machine building and may be used for combined finishing treatment by cutting and surface plastic deformation of spiroid worms, which form spiroid gear with coupled spiroid wheel. Tool comprises disk with longitudinal holes, at the end of which there is an annular turn arranged with working outer side surface, having profile in the form of tooth and radial slots, and alternating elements and strengthening deforming elements. Cutting and strengthening deforming elements are installed on working outer side surface of annular turn. Cutting elements are made of wire nap and are arranged in the form of fine wires, which are rigidly and radially fixed in radial slots of turn. Strengthening deforming elements are made of wire, rigidly and longitudinally fixed in long holes of disk, are arranged in radial slots of annular turn and are arranged in the form of tooth of spiroid wheel coupled with spiroid worm when forming spiroid gear. Annular turn is arranged with thickness of tooth profile that provides for its free location in groove between teeth of processed spiroid worm.

EFFECT: improved hardness of processed surface, better quality of processing, increased efficiency and service life of tool, simplified assembly and disassembly.

15 dwg, 1 tbl, 1 ex