METHOD FOR ROUNDING ENDS OF TEETH OF GEAR WHEELS (VARIANTS) Russian patent published in 2008 - IPC B23F19/10 

FIELD: metal working, manufacture of switched gear wheels and toothed clutches.

SUBSTANCE: method comprises steps of mounting blank; positioning milling cutters in spindles of spindle stock; working end surfaces of teeth of blank by means of two single-tooth milling cutters with hard-alloy tips to which axial feed is imparted. One milling cutter works rounding of one side of tooth; other milling cutter works rounding in opposite side of other tooth of blank while both milling cutters are driven to simultaneous rotation at mutually opposite rotation sign selected according to condition that each milling cutter begins working on lateral side of tooth of blank and terminates working on tooth end. In order to improve quality of working, blank is mounted in clamping attachment in such a way that its worked teeth are arranged symmetrically relative to horizontal plane by inclination angle relative to it. Milling cutters are mounted symmetrically relative to said plane; their angular position is set by turning spindle stock from axis of blank and by turning spindle relative to horizontal plane. Linear position of milling cutters determined by coordinates of their apexes relative to blank center and its front end is also set. Turning angles of spindle stock, spindle and coordinates of apexes of milling cutters relative to blank center and its front end is determined according to given relationships.

EFFECT: improved quality of working teeth of blank.

4 cl, 12 dwg