Numerically-controlled multi-point side-pressing frame hydraulic machine

Abstract

The invention relates to a numerically-controlled multi-point side-pressing frame hydraulic machine, which comprises a workbench and a sliding block, wherein a hydraulic cushion is arranged in the workbench; the hydraulic cushion is driven by a plurality of hydraulic cushion oil cylinders which are uniformly distributed in the workbench; the pressure of each hydraulic cushion oil cylinder can be independently controlled by a hydraulic oil circuit of the hydraulic cushion; the sliding block is driven by a sliding block oil cylinder; and a hydraulic buffering oil circuit and a fast pressure-relief oil circuit are arranged on the hydraulic oil circuit of the sliding block oil cylinder. The numerically-controlled multi-point side-pressing frame hydraulic machine has the advantages that: the pressure of each hydraulic cushion oil cylinder can be adjusted according to practical situations during pressing of a product; the product which is subjected to multi-point pressing is high in quality and low in rejection rate; under the action of the hydraulic buffering oil circuit, when the sliding block moves down at a lower speed, impaction or vibration cannot occur and the speed can be changed flexibly; and when the fast pressure-relief oil circuit performs pressure relief of the sliding block oil cylinder, short pressure-relief time, smooth pressure relief and no hydraulic impaction are ensured by secondary pressure relief.

Description

technical field [0001] The invention relates to a hydraulic machine, in particular to a digitally controlled multi-point edge-holding frame hydraulic machine with small impact and good pressing effect. Background technique [0002] Ordinary hydraulic presses currently on the market are generally one-point blanking. When manufacturing large-scale hydraulic parts, uneven pressure is prone to occur, which affects product quality. In addition, in the process of fast-forwarding, slow-moving and pressing down of the slider, the hydraulic press has no buffering process, so there will be different degrees of impact during the process of pressing the product, and the smoothness of the pressing is also very bad. There is also a lot of noise during the process. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a digitally controlled multi-point edge-holding frame hydraulic machine with small impact and good pressing effect. ...

AI Technical Summary

Problems solved by technology

[0002] At present, ordinary hydraulic presses on the market are generally one-point blanking. When manufacturing large-scale hydraulic parts, uneven pressure is prone to occur, which affects product quality.

In addition, in the process of fast-forwarding, slow-moving and pressing down of the slider, the hydraulic press has no buffering process, so there will be different degrees of impact during the process of pressing the product, and the smoothness of the pressing is also very bad. There is also a lot of noise during the process

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