SERVO MOTOR DRIVEN TAPPED HOLE MACHINING DEVICE USING NUMERICAL CONTROL INSTRUCTION

摘要

PROBLEM TO BE SOLVED: To machine a tapped hole concurrently with press punching operation for rationalizing work for machining a tapped hole in press punched parts. SOLUTION: A tapped hole machining device which has a tap 4 mounted on a motor shaft of a servo motor 1 driven by a numerical control device 2 via a tap holder 5 and a sleeve 6 is assembled in a female mold 15 of a press die for machining a tapped hole in a workpiece 16.