Roller hemming processing device and roller hemming processing method

Patent metadata

Field	Value
Publication number	US-2016074924-A1
Application number	US-201414786839-A
Country	US
Kind code	A1
Filing date	Feb 12, 2014
Priority date	Apr 24, 2013
Publication date	Mar 17, 2016
Grant date	—

Abstract

A roller hemming processing apparatus adapted to perform a hemming processing has a hemming die, on which a panel-like workpiece having a hemming flange portion on a periphery portion thereof, is positioned and supported, a roller hemming processing tool that is moved along a longitudinal direction of the hemming flange portion to bend the hemming flange portion at a root portion thereof while pressing the hemming flange portion toward the hemming die, and a nesting block disposed at a part of the periphery of the hemming die. The nesting block performs positioning of the workpiece by being brought into contact with the root portion of the hemming flange portion with which the workpiece is formed. The nesting block is elastically supported to be retractable in the pressing direction and to be swingably displaceable in the longitudinal direction of the hemming flange portion.

First claim

1 . A roller hemming processing apparatus adapted to perform a hemming processing, comprising:
a hemming die, on which a panel-like workpiece comprising a hemming flange portion on a periphery portion thereof, is positioned and supported; a roller hemming processing tool that is moved along a longitudinal direction of the hemming flange portion to bend the hemming flange portion at a root portion thereof while pressing the hemming flange portion toward the hemming die; and a nesting block disposed at a part of the periphery of the hemming die, wherein the nesting block performs positioning of the workpiece by being brought into contact with the root portion of the hemming flange portion with which the workpiece is formed, and wherein the nesting block is elastically supported to be retractable in the pressing direction and to be swingably displaceable in the longitudinal direction of the hemming flange portion.

2 . A roller hemming processing apparatus as claimed in claim 1 ,
wherein a supporting member that supports the nesting block is provided at the periphery of the hemming die, and wherein the nesting block is elastically supported to be retractable in the pressing direction and to be swingably displaceable in the longitudinal direction of the hemming flange portion with respect to the supporting member.

3 . A roller hemming processing apparatus as claimed in claim 2 , wherein the nesting block is formed to have a tapered shape where both width dimension and thickness dimension are gradually decreased in the projecting direction of the hemming flange portion.

4 . A roller hemming processing apparatus as claimed in claim 3 , wherein the hemming die is formed with a recess part at a part corresponding to the nesting block, thereby keeping the tip end of the nesting block from contact with the hemming die.

5 . A roller hemming processing apparatus as claimed in claim 1 ,
wherein the hemming processing tool is held by a robot arm of an industrial robot, and wherein the hemming processing tool is adapted to be moved along the longitudinal direction of the hemming flange portion by the autonomic movement of the industrial robot.

6 . A roller hemming processing method, comprising:
positioning and supporting, on a hemming die, a panel-like workpiece comprising a hemming flange portion on a periphery portion thereof; moving a roller hemming processing tool along the longitudinal direction of the hemming flange portion to bend the hemming flange portion at its root portion thereof while pressing the hemming flange portion toward the hemming die; disposing a nesting block at a part of the periphery of the hemming die, the nesting block the performing positioning of the workpiece by being brought into contact with the root portion of the hemming flange portion with which the workpiece is formed; and combining an action of pressing the nesting block based on the pressing force of the hemming processing tool and an action of swingably displacing the nesting block in the longitudinal direction of the hemming flange portion, at a portion of the hemming flange portion corresponding to the nesting block.

Assignees

• Nissan Motor

Inventors

• Takai Ryoji
• Aoki Kazuya

Classifications

• B21D39/023 Primary

  using rollers · CPC title

• Y10T29/53996

  by deforming · CPC title

• Y10T29/53961

  with work-holder for assembly · CPC title

• Y10T29/53791

  Edge binding · CPC title

• Y10T29/53709

  Overedge assembling means · CPC title