Circulating type milling apparatus for milling a lock core keyway

A circulating type milling apparatus for milling a lock core keyway, comprising:

• a frame including a plurality of posts and a top plate supported by the posts, the frame further comprising a lock core supplying means for guiding a plurality of lock cores to fall one by one, the frame further comprising a collecting box and a guide plate for guiding milled lock cores into the collecting box, the frame further including a ratchet tooth member;
• a rotating disc intermittently driven by the ratchet tooth member, the rotating disc including a plurality of equidistantly arranged lock core seats located on the same circle, each said lock core seat holding an associated said lock core therein;
• an actuating cylinder secured to the to plate and including an actuating rod;
• a milling disc connected to and thus actuatable by the actuating rod in a vertical direction, the milling disc including a plurality of downwardly extending rods each having a cutter secured thereto, the cutters being arranged equidistantly on the same circle for milling each said lock core gradually, each said rod further including a detector provided thereon, wherein one of the rods including an ejecting plate provided thereon and located between a first one of the cutters and the last one of the detectors, each said detector being located behind an associated said cutter on the same rod along a rotating direction of the rotating disc, each said detector including a plate with a width slightly smaller than that of the associated cutter;
• a plurality of fixing seats mounted to the rods for securely receiving the cutters, the ejecting plate, and the detectors, respectively;
• and
• a fixed wall including a plurality of tracks for providing sliding engagement with the fixing seats for the cutters, the ejecting plates, and the detectors, the fixed wall further including a lower sensor and an upper sensor mounted thereon;
• whereby when the milling disc is moved downward, the cutters mill a keyway in each said lock core, when the cutters are moved downward to a position in contact with the lower sensor, the lower sensor sends a signal to cause the rotating disc to rotate through a tooth pitch, and the milling disc is then moved upward, and each said detector checks whether the keyway just milled meets a required standard, and wherein a completely milled lock core is ejected by the ejecting plate.