Auxiliary spinning forming tool for thin-wall aluminum alloy end socket baffle and forming process of auxiliary spinning forming tool

Abstract

The invention discloses an auxiliary spinning forming tool for a thin-wall aluminum alloy end socket baffle. The auxiliary spinning forming tool comprises a core mold; a cylindrical spring guide is arranged on the top of the core mold; a to-be-machined flange blank material and a baffle are pressed at the bottom of the spring guide; the baffle is arranged at the bottom of the flange blank materialin a cushioned manner; a C-shaped cantilever is arranged on an outer spinning machine; a baffle frame is fixed to one end of the C-shaped cantilever; the baffle is supported on the baffle frame; a cutter base is fixed to the other end of the C-shaped cantilever; a ball screw is fixed to the cutter base and is sleeved with a screw nut; the screw nut can slide along the ball screw; a rotating motoris fixed to the bottom of the screw nut, and is provided with an output shaft which is sleeved with a spinning roller; and the spinning roller is driven by the rotating motor to rotate.

Description

technical field [0001] The invention relates to the technical field of auto parts processing, in particular to an auxiliary spinning forming tool for a thin-walled aluminum alloy head baffle and a forming process thereof. Background technique [0002] For automobile flanges, in the prior art, it is usually processed by the spinning process. The traditional spinning process uses a process of shearing and spinning first and then general spinning. The shearing and spinning meet the positive melody, which can ensure the The flange is kept straight during forming, and then multi-pass general rotation is used to gradually form the flange with film. [0003] However, for some thin-walled flange components, when the traditional spinning process is used for processing, the flange is prone to instability and wrinkling. The flange wrinkling is mainly caused by insufficient flange stiffness, and the shape of the component itself is relatively complicated ( There are small fillet transi...

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Problems solved by technology

[0003] However, for some thin-walled flange components, when the traditional spinning process is used for processing, the flange is prone to instability and wrinkling. The flange wrinkling is mainly caused by insufficient flange stiffness, and the shape of the component itself is relatively complicated ( There are small fillet transitions and straight edge areas) and the depth diameter is relatively large. If the traditional spinning forming process is used, more passes need to be planned to avoid defects, which will lead to cumbersome processes and reduce production efficiency. Moreover, due to the first Due to the existence of shear spinning in one pass and the "thinning" effect of subsequent multi-pass rotary wheels, the wall thickness reduction rate of components obtained by spinning is very large

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