| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of reducing the friction of a linear motion guide element which can be easily introduced into conventional machine tools by adopting an inexpensive ultrasonic oscillator and by minimally changing the design of sliding guide elements and which can improve positioning accuracy on the order of microns to sub microns by reducing the slipping friction force. Ž<P>SOLUTION: In this method of reducing the friction of a sliding linear motion element having a sliding surface, a high-frequency vibration is applied to a rail side sliding surface or/and a guide block side sliding surface to reduce the friction force of the sliding surfaces. Since the vibrations of a guide block and a rail mounting portion can be minimized, a machine body and a workpiece are not affected by the vibrations. Since only the sliding surfaces of the sliding linear motion guide element can be excited to reduce the friction of the surface, the positioning accuracy can be improved. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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