Hemming finishing punch, robot including hemming finishing punch, and hemming finishing processing method

Abstract

Provided is a finishing processing method, including placing an inner panel having a protrusion and an outer panel on each other, and, by using a hemming finishing punch having an arc-shaped pressing surface and having a relief hole of a size corresponding to the protrusion at a central part of the pressing surface, pressing the outer panel so that the arc-shaped pressing surface is rolled along an end portion of the outer panel and the relief hole corresponds to the protrusion.

What is claimed is: 
     
         1 . A hemming finishing punch
 having an arc-shaped pressing surface for pressing an outer panel placed on an inner panel, and   having a relief hole of a size corresponding to a protrusion of the inner panel at a central part of the pressing surface.   
     
     
         2 . A robot, comprising
 the hemming finishing punch according to  claim 1 .   
     
     
         3 . The robot according to  claim 2 , further comprising
 a hemming roller, wherein   the hemming finishing punch is provided to be adjacent to the hemming roller.   
     
     
         4 . A finishing processing method, comprising:
 placing an inner panel having a protrusion and an outer panel on each other; and   by using a hemming finishing punch having an arc-shaped pressing surface and having a relief hole of a size corresponding to the protrusion at a central part of the pressing surface, pressing the outer panel so that the arc-shaped pressing surface is rolled along an end portion of the outer panel and the relief hole corresponds to the protrusion.   
     
     
         5 . The finishing processing method according to  claim 4 , wherein
 the hemming finishing punch is provided on a robot hand of a robot, and the press is performed by operation of the robot.