The invention discloses an automatic edge
grinding machine. The edge
grinding machine comprises a rack, a feeding
pipe, a material pushing air cylinder, a material pressing device and an edge grindingdevice, wherein a vertical feeding
pipe is arranged on one side of the rack, the horizontally-arranged material pushing air cylinder is installed on the portion, below the feeding
pipe, of the rack,a material pushing block matched with an outlet of the feeding pipe is arranged on a
piston rod of the material pushing air cylinder, the material pressing device for pressing a workpiece is arrangedon the portion, in the moving direction of the material pushing block, of the rack, and edge
grinding devices for conducting edge grinding on the workpiece are arranged on the portions, on two sides of the material pressing device. The edge grinding
machine has the advantages that the material pressing device and the edge grinding device are arranged on the rack, feeding directions of the materialpushing air cylinder and the material pressing device are aligned, edge grinding
machining can be continuously conducted on
metal rubber rings,
machining efficiency is improved, and workers are prevented from being hurt.