Multifunctional vibration extrusion die based on electro-hydraulic servo driving

Abstract

A multifunctional vibration extrusion die based on electro-hydraulic servo driving comprises a lower female die and an upper male die. The multifunctional vibration extrusion die further comprises an upper hydraulic cylinder and at least three lower hydraulic cylinders. The upper hydraulic cylinder and the lower hydraulic cylinders are respectively connected with a high-pressure hydraulic valve. The upper hydraulic cylinder comprises an upper cylinder body and an upper piston. The upper cylinder body is provided above an inner hole of a male die bush. The upper piston is fixedly connected with the male die. The male die is equipped below the inner hole of the male die bush slidably in a vertical direction. The male die bush is fixedly connected with a vibration tray. The lower hydraulic cylinders are symmetrically equipped at the bottom of the vibration tray. Each lower hydraulic cylinder comprises a lower cylinder body and a lower piston. Each lower cylinder body is fixedly connected with a lower die base. Each lower piston is fixedly connected with the vibration tray. The multifunctional vibration extrusion die based on electro-hydraulic servo driving according to the invention effectively reduces a vibration process in a forming process and reduces requirement to the extrusion equipment.

Description

technical field [0001] The invention relates to a vibration extrusion die, in particular to a multifunctional vibration extrusion die based on electro-hydraulic servo drive. Background technique [0002] Cold extrusion is to make the metal volume plastic transfer without destroying the metal, so as to achieve metal forming with less chips and no chips. Compared with traditional mechanical processing methods, cold extrusion has less material consumption, high production efficiency, and mechanical properties. Superior, can form complex shape parts and other advantages. With the rapid development of the automobile manufacturing industry, there is an increasing demand for high-precision, complex-shaped auto parts, especially some parts that are difficult to machine and have high processing costs, such as cylindrical spur gears, cylindrical helical gears and flower Key shafts, etc. are also required to be directly formed by cold extrusion; however, when cold extruding such parts...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the existing vibration plastic forming technology based on power ultrasound, which has low input power and cannot be applied to cold extrusion forming of large parts, the present invention provides a multi-function based on electro-hydraulic servo drive with adjustable frequency and amplitude. Vibration Extrusion Die

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