Multifunctional vibration extrusion die based on electro-hydraulic servo driving

An extrusion die, multi-functional technology, applied in the direction of metal extrusion die, can solve the problems of low input power, inability to apply cold extrusion forming of large parts, etc., to achieve the effect of large input power, reduced requirements, and high dynamic response

Active Publication Date: 2012-03-21
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 ex

Method used

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  • Multifunctional vibration extrusion die based on electro-hydraulic servo driving
  • Multifunctional vibration extrusion die based on electro-hydraulic servo driving
  • Multifunctional vibration extrusion die based on electro-hydraulic servo driving

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] refer to Figure 1 to Figure 5 , a multi-functional vibration extrusion die based on electro-hydraulic servo drive, including a lower die 8 and an upper punch 7, the upper punch 7 is installed in the punch bushing 4, and the punch bushing 4 and The upper template 1 is fixedly connected, the upper template 1 is connected with the punch driving mechanism of the press, the lower die 8 is located directly below the upper punch 7, and the lower die 8 is installed on the die press In the sleeve 10, the die press sleeve 10 is installed on the die support 11, the ejector rod 19 passes through the lower mold base 14, and the ejector rod 19 is connected with the ejector rod driving mechanism for driving the ejector rod to move upward. connected, the upper template 1 is provided with an upper guide hole, the lower mold base 14 is provided with a lower guide hole, and the ...

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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...

Claims

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Application Information

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IPC IPC(8): B21C25/02
Inventor 杨庆华孟彬陈鑫
Owner ZHEJIANG UNIV OF TECH
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