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[CN 201910429724.0] Press Flanging Die and Press Title: Press Flanging Die and Press Application Number: CN 201910429724.0 Applicant: Chery Automobile Co., Ltd. Application Date: 2019-5-22 Patent Type: Invention Application The present invention discloses a press flanging die, involving the field of mechanical processing, the material pressing flanging die comprises a flanging cutter block, a lower support core, an upper pressing core, a punch, a first elastic component, a second elastic component and a 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 of the flanging cutter block, the upper die base drives the flanging cutter block to rise. Under the elastic action of the second elastic component, the lower support core rises with the flanging cutter block. The first top block and the second top block are configured to be offset during the return of the flanging cutter block. In order to transfer 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 cutter block, so that the upper pressure The core and the lower support core move synchronously during the return process, and the stroke is consistent, thereby avoiding flange deformation and improving the yield.
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