Automatic-blocking forging forming die

Abstract

The invention provides an automatic-blocking forging forming die. The automatic-blocking forging forming die structurally comprises an upper top plate, a guide injection opening, an upper die plate, ablocking lock control device, a lower die plate, a guide frame and a bottom plate; and the guide injection opening is formed in the middle of the top end of the upper top plate, the bottom end of theupper die plate is attached to the top end of the blocking lock control device, the blocking lock control device and the lower die plate are fixedly connected together, the guide frame is mounted inthe blocking lock control device in an embedded mode, and a bottom plate of the guide frame is attached to the bottom plate. By pressing an elastic gas sleeve in the die closing process of an upper die body and a lower die body, gas in the elastic gas sleeve is guided into a locking hook mechanism through a guide conveying pipe and gathered in the locking hook mechanism, then a hook strip in the locking hook mechanism can be released to conduct back-embedding restraining on the upper die body while expanding, due to synchronous restraining in the four directions, die closing force between theupper die body and the lower die body can be maximum, and then the die closing first condition of a large casting can be achieved.

Description

technical field [0001] The invention belongs to the field of molds, and more specifically relates to a self-closing forging mold. Background technique [0002] Block forging is a precision forging forming technology, which has developed rapidly in the manufacture of parts in the automotive, aerospace and other industries. During the forging process, the die is generally closed first and then the punch is used to extrude the blank in the die cavity. Under the action of mold clamping force and extrusion force, the billet is in a state of three-dimensional compressive stress with good plasticity, so that one-time forming can be realized. [0003] Based on the above description, the inventors found that the existing self-closing forging mold mainly has the following deficiencies, such as: [0004] In the two-way closed forging process, the elastic element is mainly used to support the upper and lower molds, and the mold clamping force of this type of mold is relatively small, s...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides an automatic block forging molding die to solve the problem that in the existing two-way block forging process, the elastic element is mainly used for supporting the upper and lower dies, and the mold clamping force of this type of die is too small , for the production of small castings, it still occupies the main purpose, and for large castings, due to the small clamping force in the closed state, it is easy to cause the internal pressure and external pressure of the casting to balance, resulting in flashes and flashing problems.

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