Grinding machine for bearing rings and method for adjusting such a machine

A method for automatically adjusting the position of the bearing rings in the working station of a grinding machine with respect to a grinding wheel of the grinding machine, depending on at least one of the profile of an edge of the grinding wheel and the dimensions of the bearing ring,

• accessing the grinding machine the grinding machine comprising:
• a frame,
• a rotating grinding wheel movable in rotation around a first rotation axis,
• a working station where a bearing ring stands during a grinding operation of one of its surfaces
• a holding subsystem for holding a bearing ring in the working station, the holding subsystem being rotatable around a second rotation axis and supported by a support plate movable with respect to the frame,
• wherein the machine includes:
• a first electric actuator for moving the support plate in rotation with respect to the frame, around a third axis perpendicular to the first and second rotation axes, and
• a second electric actuator for moving the holding subsystem in translation along the second rotation axis;
• the method comprising steps of:
• a) accessing a memory where angular offset values are stored, for an angle measured between the first rotation axis and the second rotation axis for at least one of different edge profiles and different bearing ring dimensions;
• b) selecting an angular offset value in the memory, as a function of at least one of the profile of the edge and of the bearing ring dimensions;
• and
• c) piloting the first electric actuator in order to obtain the selected angular offset value between the first and second rotation axes.