ELID CENTERLESS GRINDING DEVICE

PROBLEM TO BE SOLVED: To provide an ELID centeyless grinding device to hold a friction factor between the outer peripheral shape of a regulation wheel and a work approximately at a constant value during grinding of the work. SOLUTION: This device comprises a blade 2 horizontally supporting a rotary body work 1 and having a slope inclining an outward down state; and a regulation wheel 10 rotationally driven centering around a horizontal axis. ELID grinding is applied on a conductive grinding wheel 4. The outer peripheral part of the regulation wheel 10 comprises a conductive elastic member 11; and a wear resisting particle 12 held by the elastic member and further, is provided with an electrode 14 for electrolysis situated in the vicinity of the outer peripheral surface of the regulation wheel 10 and an electrolytic source 16 to apply a voltage for electrolysis between the electrode 14 for electrolysis and the regulation wheel 10. Conductive processing liquid flows between the electrode 14 for electrolysis and the regulation wheel 10, and as the wear resisting particles 12 are protruded by removing the conductive elastic member 11 by electrolytic dressing, the grinding-wheel is brought into contact with the outer peripheral surface of the work 1 and rotated centering around the axis thereof.