METHOD FOR GRINDING PRECISION PUNCH DIE, CUTTING EDGE TIP ADJUSTING JIG, AND DIE GRINDING DEVICE

摘要

PROBLEM TO BE SOLVED: To grind a cutting edge tip of a precision punch die without breaking it.;SOLUTION: This method comprises a process of setting the die on a die grinding device 50 with a jig as the cutting edge tip 38 of a punch body 31 for composing a punch P of the precision punch die is protruded by a specified quantity from an end surface of a punch guide 30 using a cutting edge tip adjusting jig 1, a process of detecting a die position based on continuity of a grinding wheel 5 provided on the die grinding device 50 with the cutting edge tip 38 by lowering the grinding wheel to get in contact with the cutting edge tip 38, and a process of grinding the cutting edge tip 38 at a feed speed of 0.0005 mm/sec that is lower than grinding feed speed of the grinding wheel 5 to a non-precision punch die after detecting the die position.;COPYRIGHT: (C)2002,JPO