Patent ID: 6688201
Filing Date: 2004-02-10
Classification: B21D,H01M,Y02E,Y10T

Abstract:
A thin sheet punching device comprising:a table on which a plurality of thin sheets of prescribed dimensions are loaded in a stacked fashion; a position registering area connected to the table, in which a thin sheet to be processed is set in position; a transporting mechanism for loading the thin sheets one at a time from the table onto the position registering area; a positioning mechanism provided in the position registering area for positioning the thin sheet in a predetermined position, comprising pushers for pressing two adjacent edges of the thin sheet in mutually perpendicular directions, and a first stopper member and a second stopper member, against which the two opposing edges of said thin sheet are pressed; a processing area connected to the position registering area, in which the thin sheet is processed; a movement control mechanism provided in the processing area, having a plurality of chuck tools for transferring the thin sheet from the position registering area into the processing area and for controlling the overall movement of the thin sheet during the processing thereof; and a punch press machine disposed along one side of the processing area and provided with a plurality of press punching tools aligned in a row along a longitudinal direction of said punch press machine, each of said press punching tools comprising a die and a punch, for simultaneously punching out a plurality of alternate punching locations of a plurality of punching locations set in a row in the thin sheet; wherein the thin sheet is moved in two mutually perpendicular directions, a first direction being parallel to the longitudinal direction of the punch press machine and a second direction being orthogonal thereto, and the movement control mechanism alternately effects control for moving the thin sheet reciprocally by a prescribed movement pitch in the first direction, and control for moving the thin sheet by a prescribed movement pitch in the second direction each time it has been moved in either way in the first direction, in such a manner that the plurality of alternate punching locations of the plurality of punching locations set in a row in the first direction of the thin sheet are successively positioned opposite the row of said press punching tools.