Electro-servo stretching pad

Abstract

The invention provides an electro-servo stretching pad, comprising an apical cap, wherein the apical cap is connected with a servo motor driving mechanism, the servo motor driving mechanism comprises a servo motor arranged on a support base and a screw rod shaft connected on a support, a driving shaft and the screw rod shaft of the servo motor are connected with belt wheels, synchronous belts are connected among the belt wheels, and a nut connected on the apical cap is arranged on the screw rod shaft; and the servo motor is electrically connected with a servo driver, an energy feedback storing device and a servo controller. The electro-servo stretching pad has the beneficial effects that any edge press force required for the tensile deformation of a workpiece can be realized in combination with a slide block of a press machine, the mechanical energy can be converted into electric energy during stretching, so that a mass of electric energy can be saved, and particularly the automobile parts which are high in precision and hard to form required for manufacturing an automobile body such as the high-strength steel, the composite forming material, the aluminum alloy, the material hard to form and the like can be formed in a stretching way.

Description

technical field [0001] The invention relates to an electric servo stretching pad. Background technique [0002] In the sheet metal stretch forming process, most of the formed parts need a blank holder to provide sufficient friction and increase the tensile stress in the sheet material, so as to achieve the purpose of controlling the flow of the material and avoiding wrinkling. The size of the blank holder force is an important process parameter in sheet metal forming, and it is also an important means of controlling material flow in sheet metal forming. When forming large-scale panels, the blank-holding force is generally provided by the stretch pad. If the blank-holding force is too small, the flow of the material cannot be effectively controlled, and the sheet is easy to wrinkle. If the blank-holding force is too large, the material will tend to crack obviously increase. In actual production, in order to improve the quality and production efficiency of formed parts, it ...

AI Technical Summary

Problems solved by technology

However, the CNC hydraulic pad system consumes a lot of energy, pollutes a lot, and is complicated to maintain

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