Surface milling, hole drilling and assembling device of chain plate

The utility model provides a surface milling, hole drilling and assembling device for a plate, and aims at fixing the chain plate to mill the surface and drill a hole. The device comprises a base, a first oil cylinder, a second oil cylinder , a large shaft hole pressing head, a small shaft hole pressing head, a first stopping block and a second stopping block, wherein the first oil cylinder and the second oil cylinder are transversely arranged at intervals on the base; the large shaft hole pressing head is arranged in a piston rod of the first oil cylinder; the small shaft hole pressing head is arranged on the piston rod of the second oil cylinder; the first stopping block is arranged on the base and opposite to the large shaft hole pressing head; the second stopping block is arranged on the base and opposite to the small shaft hole pressing head; a cylindrical front part adapted to a large shaft hole of the chain plate and a shoulder part propped to the end surface of the large shaft hole of the chain plate are formed at the large shaft hole pressing head; a cylindrical front section adapted to a small shaft hole of the chain plate and a shoulder propped to the bottom surface of a dustproof hole of the chain plate are formed at the small shaft hole pressing head. According to the device, the large shaft hole and the small shaft hole in the chain plate can be clamped and positioned through the large shaft hole, the small shaft hole and the stopping block; the oil cylinders are used as the power sources to drive the large shaft hole pressing head and the small shaft hole pressing head to telescopically feed, so as to facilitate the assembling; the production efficiency and assembling accuracy can be increased; the processing size is stable.