DRILLING DEVICE

PURPOSE:To accurately drill and process a processed article at memorized hole positions by measuring a plural number of the hole positions of a jig with a measuring terminal, memorizing them in a memory and replacing the measuring terminal with a drill. CONSTITUTION:On moving vane fixing parts 101a-101d of a turbine rotor 100, a jig 120 is installed semicircularly with holders 105, 106 in correspondence with their shapes. A jig hole 122 is drilled and provided at a position facing against a pin hole 102 to a moving vane of the turbine rotor 100 on the jig 120. A contact 81 free to move in the YZ direction is installed in this jig hole 122 free to connect and disconnect. A hole position is measured as the contact 81 makes contact with the jig hole 122 and it is memorized in a memory. When all the hole positions are memorized, the contact 81 is replaced with a drill, and a pin hole 102 is drilled and provided at the moving vane fixing parts from both sides at the memorized hole positions. This drilling procedure is carried out by CPU. Accordingly, it is not necessary to adjust the tip of a tool at each time of drilling and it is possible to accurately drill a hole without trouble.