Examination of sliding guideway combined with pressure chamber

Abstract

Although the apply of hydrostatic guideways in high precision machine tools is desirable, fewer companies are involved in marketing this type of guideway due to the high precision manufacturing required to produce the hydrostatic guideways and the complexity of the hydraulic system. In order to improve the accuracy of a portal-type milling machine to be designed as part of a departmental project, special guideway designs have been investigated, resulting in a slideway structure relieved with hydraulic pressure chambers. A measuring bench was set up to check the amount of relief. Based on the primary measurements performed, the structure relieves the load by providing a suitable sliding surface.