Static and Dynamic Analysis of Hydraulic Copying System Using Throttling Valve

The effect of dimension parameters of hydraulic copying control system using throttling valve on the copying accuracy is investigated from two points of view for good design of the system. One is the static characteristic in steady copying operation, and the other is the dynamic characteristics in machining a square shoulder and tapering. Some remarks which serve the design of the hydraulic copying system are clarified. The approximate equations, which are the functions of dimension parameters especially in dynamic operation, are proposed to estimate the dynamic characteristics of the copying system and to simplify the design of the system.