Reshaping mechanism for cylinderical workpiece mounted to pressing machine

Abstract

The invention discloses a reshaping mechanism for a cylinderical workpiece mounted to a pressing machine. The reshaping mechanism comprises a female die component and a male die component, the female die component comprises a base and an outer sleeve fixed to the upper portion of the base, an axial inverted conical through hole matching with an inner sleeve with the outer surface in the shape of an inverted cone is processed in the middle of the outer sleeve, an axial cylindrical through hole is processed in the middle of the inner sleeve, and a stripping plate is mounted on the lower portion of the axial through hole in the middle of the inner sleeve. The inner sleeve is axially cut into four equant components, a plurality of corresponding holes are processed among the side end faces of the equant components, and compression springs are mounted among the corresponding holes. The male die component comprises a fixed sleeve fixed with a slider of the pressing machine, a push rod capable of moving up and down is mounted in the middle of the fixed sleeve, a pressing plate is fixed at the lower end of the push rod, a pressure spring is mounted on the push rod between the pressing plate and the fixed sleeve, the pressing plate moves downwards along with the slider to press the workpiece into the inner sleeve, and the fixed sleeve moves downwards along with the slider to enable the inner sleeve to move downwards. The reshaping mechanism can well protect the appearance of the workpiece and a reshaping female die and is high in reshaping efficiency.

Description

technical field [0001] The invention relates to a shaping mechanism for a workpiece, in particular to a shaping mechanism for a circular tube-shaped workpiece installed in a press. Background technique [0002] After punching the side of the round tubular workpiece, its ellipticity will be out of tolerance. In order to improve the dimensional accuracy of the product after forming, it is necessary to reshape the workpiece. [0003] The existing shaping mechanism installed in the press mainly uses the slider of the press to drive the punch to force the workpiece into the die, and perform rigid clamping and shaping on the workpiece. Although this shaping mechanism has high shaping efficiency, due to the existence of Burrs or unevenness often cause scratches on the surface of the workpiece after shaping, affect the quality of the workpiece after molding, and even damage the die in severe cases. [0004] On July 9, 2008, an invention patent with the patent number ZL200720039919....

AI Technical Summary

Problems solved by technology

This kind of shaping device shapes the metal round tube through the lower half mold and the upper half mold. Although it can effectively adjust the ellipticity of the metal round tube, the shaping efficiency is low and it is not suitable for mass production.

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