AUTOMATIC SYSTEM OF MANUFACTURING BALL STUDS FOR VEHICLES

An automatic system of manufacturing ball studs for vehicles which establishes various processes inline to diagnose each process and perform production and inventory control. The system comprises a cold forging unit for uncoiling and forming a cold coil for ball studs into ball studs shaped at least 50% similar to a desired one; first cleaning unit for removing burrs or lubricant layers of materials from the cold forged ball studs; an impurity inspection unit for determining whether the burrs or lubricant layers are properly removed; a unit for rolling a head, a neck and threads with a rolling machine; second cleaning unit for completely removing impurities from the ball studs; an inspection unit for finding dimensional defects and minute breaks or cracks from the ball studs after the second cleaning; a storage unit for storing the ball studs into a warehouse by an automated transport robot after the inspection; a central control unit for controlling the units to be operated in sequence, performing an emergency stop of the units in response to a defect signal from the inspection unit, and diagnosing abnormal conditions of the units; and an FMS server for storing product data related to the abnormal and operated conditions and amount of production into a database and transmitting the same in the case of necessity.