PUNCHING DIE

PROBLEM TO BE SOLVED: To provide a punching die which is capable of feeding a lubricant to a sliding part or the like between a punch guide and a punch body and easily manufactured. SOLUTION: The punching die comprises a punch guide 105, a punch body 107 to be slidably engaged with the punch guide 105, a punch head 109 provided on the punch body 107, a stripper spring 111 elastically fitted between the punch guide 105 and the punch head 109, a lubricant introduction unit provided on the punch body 107, and a cylindrical sleeve 125 provided between the punch body 107 and the stripper spring 111 so as to form a feed passage 127 for feeding the lubricant introduced by the lubricant introduction unit to a predetermined part. COPYRIGHT: (C)2007,JPO&INPIT