Blind flanging dies and presses

Abstract

The invention discloses a pressing and flanging die, which relates to the field of mechanical processing. The pressing and flanging die comprises a flanging knife block, a lower supporting core, an upper pressing core, a punch, a first elastic component, a second elastic component and Stroke difference elimination device. After the flanging is completed, the flange is on the lower support core, and both the first elastic component and the second elastic component are in a compressed state. During the return process of the flanging knife block, the upper die seat drives the flanging knife block to rise. Under the elastic action of the second elastic component, the lower support core rises along with the flanging knife block. The first jacking block and the second jacking block are configured to abut during the return process of the flanging knife block. In order to transmit the lifting force of the lower support core to the upper support core through the first top block and the second top block, so that the upper support core and the lower support core move together along the return direction of the flanging knife block, and then the upper pressure core It moves synchronously with the bottom support core during the return process, and the stroke is consistent, so as to avoid flange deformation and improve the yield rate.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a binder flanging die and a press. Background technique [0002] The flanging process is a stamping process that uses a mold to turn the edge of the hole or the outer edge of the sheet into a full edge. In the flanging process, in order to obtain a better flanging effect, a pressing flanging die is usually used. [0003] The pressing and flanging mold includes a pressing device and a flanging device. The pressing device includes an upper pressing core and a punch. The upper pressing core and the punch cooperate to clamp the unformed part of the sheet. The flanging device includes a flanging knife block and a punch. The lower support core, the flanging knife block and the lower support core cooperate to clamp the edge part of the sheet, and flanging the formed part of the sheet to form a flange. [0004] In the process of realizing the present invention, the inventor finds th...

AI Technical Summary

Problems solved by technology

Since the bottom of the lower support core is provided with a second elastic component, under the action of the second elastic component, the lower support core rises with the flanging knife block, so that the flange carried on the lower support core is subjected to an upward force, but this When the upper pressing core is under the action of the first elastic component on the top, it will not immediately rise with the flanging knife block, but still stay in the original position, so that the unformed part is in the original position, that is, the flange is relatively unformed part moves, thus deforming the flange

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