High frequent chattering cold extruding die possessing ejection rod

Abstract

The invention relates to a high frequent chattering cold extruding die possessing an ejection rod, which comprises a part forming mechanism, a chattering generation mechanism and an ejection mechanism. The chattering generation mechanism comprises a vibrating table and a high frequency valve, the vibrating table comprises a top plate, an upper plate and a lower plate, the ejection mechanism comprises an ejector block, an ejection rod sleeve and the ejection rod, the ejector block is positioned at the lower part of a concave die, the ejector block is positioned in a middle hole of a concave die sleeve, the middle holes are opened at the central part of the top plate, the upper plate, the lower plate and a die holder, the ejection rod sleeve passes through the central part of the top plate, the upper plate and the lower plate, the ejection rod sleeve is fixedly connected to the lower plate, the ejection rod sleeve is connected to the upper plate, the ejection rod is sleeved in the ejection rod sleeve, the upper end of the ejection rod is stretched in the middle hole of a concave die sleeve and provided on the ejection block. The high frequent chattering cold extruding die can provide large vibration output force, high vibration frequency and small amplitude, and the vibration and extrusion of the complex parts can be completed and the precious size and simple ejection mechanism can be guaranteed simultaneously.

Description

technical field [0001] The invention relates to a cold extrusion die. Background technique [0002] Because cold extrusion has many advantages such as "high production efficiency, high material utilization rate, and good part performance", it has been widely used in industrial production. However, during cold extrusion processing, due to the high flow stress of the material at room temperature, the deformation resistance rises sharply when the billet is formed, and the friction between the mold and the billet also hinders the flow of the metal billet. Not only that, the high Deformation resistance and friction have stricter requirements on the tonnage of the press and the mold. [0003] With the continuous exploration of this problem, people have found that adding high-frequency vibration to the forming process of wire and pipe drawing can effectively reduce the forming force. At present, as a high-frequency vibration source, high-power ultrasonic waves are mainly used. Be...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the existing high-frequency cold extrusion dies that cannot realize the high-frequency vibration of large-sized parts, the dimensional accuracy of the formed parts cannot be guaranteed, and the ejection mechanism is complex, the present invention provides a vibration output force that can provide a large enough , high vibration frequency and small amplitude, while completing the vibration extrusion of complex parts and ensuring its dimensional accuracy, a high-frequency flutter cold extrusion die with a simple ejector mechanism

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