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粘性压力成形 (Viscous Pressure Forming)是新近出现的一种先进的板材加工工艺。本文根据粘性成形的特点研制出一台结构新颖、操作简单、控制精确的粘性压力成形专用液压机。该液压机采用可编程控制器 (PC)对液压系统进行控制 ,实现执行部件的精确定时、定位 :采用电磁比例溢流阀精确控制介质出口的阻尼压力 ,而且通过单片机作为可编程控制器 (PC)的模入单元 ,可设定控制缸背压曲线 ,实现对模腔不等静压的控制。
Viscous Pressure Forming is a newly emerging advanced sheet metal processing technology. In this paper, according to the characteristics of viscous forming a novel structure, simple operation, precise control of viscous pressure forming special hydraulic press. The hydraulic machine adopts a programmable logic controller (PC) to control the hydraulic system to realize accurate timing and positioning of the executive components: the electromagnetic proportional relief valve is used to precisely control the damping pressure of the medium outlet, and the microcontroller is used as a programmable logic controller (PC) Of the molding unit can be set to control the cylinder back pressure curve, to achieve the same pressure on the cavity control.