Browse Publications Technical Papers 2002-01-1491

A Precision Driving System Composed of a Hydraulic Cylinder and High-Speed ON/OFF Valves (Development of the System and Its Application to a Micro-Machine-Tool) 2002-01-1491

In manufacturing technology, the predominant tendency in recent years has been for machine tools, for example, turning-, milling-, and drilling-machines, to employ an electrically operated actuator such as a servo-motor equipped with a ball screw. There are, however, various problems with these electric driving systems; they are excessively large in size and complex. In order to solve these problems, the first purpose of this study was to develop a precision driving system composed of a hydraulic cylinder and high-speed ON/OFF valves. It was confirmed that the developed system had a moving resolution of 1.2 μm. The second purpose of this study was to practice the ability test of turning, drilling and milling by applying the developed driving system to a micro-machine-tool. It was confirmed that the developed machine was compatible with, or even superior to conventional NC-machines.


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