Patent ID: 9095887
Filing Date: 2015-08-04
Classification: B21D,Y10T

Abstract:
1. A roller hemming device for hemming various works each having a plurality of parts to be hemmed, a work comprising: a pair of die changing devices for performing die-change depending on a type of the work, wherein the pair of die changing devices is configured to move into and out of proximity with each other, each of the pair of die changing devices comprises: wherein each of the plurality of lower dies is formed according to a shape of the corresponding part of the work to be hemmed, the plurality of lower dies are arranged on an outer circumferential part of the rotary shaft at predetermined intervals, the rotary shaft rotates so that one of the plurality of lower dies is selected depending on a type of the work to be hemmed, and the selected lower die of said one die changing device and the selected lower die of the other die changing device are arranged in accordance with the two parts of the work to be hemmed which are opposed to each other so that the two parts of the work to be hemmed are hemmed in a same step.