Method and device for regulating the deep-drawing process of a blank during a press stroke

摘要

Method for controlling the deep-drawing process of a blank (P) during a press stroke using a press table (1) and a press ram (2) as well as a punch (3) arranged between the press table (1) and press ram (2) with which the blank (P) can be shaped into an engraving (4.1) of a die (4) during a press stroke, the edge (P1) of the blank (P) by means of a blank holder (5) between the blank holder (5) and the die (4) with a blank holding force ( FH) / surface pressure can be applied, characterized in that by means of at least one coupling system (6) between the press table (1) or at least one tool element arranged on the press table side and the press ram (2) or at least one tool element arranged on the press ram side, the frictional connection between the die during the deep-drawing process (4) and the sheet metal holder (5) via the blank (P) to be reshaped and additionally via the coupling system (6) takes place in such a way that a force shunt can be generated and that the force fit between the coupling system (6) on the sheet metal holder (5) and the die (4) is adapted and the sheet metal holding force (FH) / surface pressure PF) acting on the edge of the blank (P1) can be changed via the force shunt is.