An automatic
crank shaft
grinding and cleaning
machine comprises a rack, a feeding device, a workpiece transfer device, a
grinding mechanism and a discharging device, wherein the feeding device, the workpiece transfer device, the
grinding mechanism and the discharging device are arranged on the rack; and the workpiece transfer device is erected above the rack through a supporting upright column, and is used for conveying to-be-ground
crank shafts conveyed by the feeding device into the grinding mechanism to be ground, and conveying the
crank shafts to the discharging device so as to
discharge the crank shafts after the crank shafts are ground. According to the automatic crank shaft grinding and cleaning
machine, workpieces are fed and discharged by a
robot, four crank shaft workpieces can be simultaneously machined at a time, and through a plurality of device components which are matched with one another, the crank shaft workpieces can be ground and cleaned fully automatically, production efficiency is improved, human resources are saved, and labor intensity of operators is also reduced. By the grinding mechanism, linkage of grinding wheels in the X, Y and Z directions can be realized, the crank shaft workpieces move on a main X axis along with the
stroke of a sliding table, and through four-axis linkage, the workpieces with different sizes can be ground at various angles along curves of parting faces of the crank shafts.