Abstract: This invention relates to a finish-machining machine for lapping, finish-grinding or polishing. The machine comprises upper and lower annular finishing disks, which are rotatable about a vertical axis and adapted to be separately driven, an inner annular series of pins, which is adapted to be driven, and an outer annular series of pins, which is preferably stationary. Said inner and outer series of pins are provided adjacent to the lower finishing disk. Holders for holding workpieces to be machined are provided between the inner and outer annular series of pins and are capable of performing a planetary movemennt about said axis and are provided with teeth, which mesh with both of said annular series of pins for imparting said planetary movement to said holders. The machine preferably includes a boom or a portal, in which the upper finishing disk is horizontally movably mounted.

Abstract: A machine for contour grinding outside peripheral surfaces of workpieces comprises a grinding wheel, a guard hood covering said grinding wheel, and a nozzle for supplying a cooling and lubricating fluid to the peripheral surface of said grinding wheel. The nozzle flares toward the peripheral surface of the grinding wheel and is open toward said peripheral surface and on that side which faces opposite to the direction of rotation of the grinding wheel is provided with a lip, which is adjustable toward and away from said peripheral surface.

Abstract: This invention relates to a finish-machining machine comprising two finishing disks, which are centered on a vertical axis, and means for feeding an abrasive slurry at a controlled rate to the working gap between said disks. The invention is particularly applicable to such a machine which can be used for lapping, finish-grinding and/or polishing. The machine is provided with such feeding means for feeding the abrasive slurry at a controlled rate, which is consistent with the specification of the workpieces which are to be finished and the selected machining conditions.