High rotational speed closed static pressure rotary worktable

The utility model discloses a high rotational speed closed static pressure rotary worktable, including the base, with base normal running fit's table surface and drive workstation pivoted motor, tablesurface's lower part is equipped with vertical fixed pivot, is equipped with the air vent of axle arrangement in the pivot, the below of base is equipped with the base, be equipped with on the base can with the air vent of air vent intercommunication, the last vacuum chuck who communicates with the air vent that is equipped with of table surface, be equipped with hydrostatic bearing between tablesurface and the base. The utility model aims at providing a compact structure, the higher high rotational speed closed static pressure rotary worktable of positioning accuracy. 本实用新型公开了种高转速闭式静压回转工作台，包括底座、与底座转动配合的工作台面以及驱动工作台转动的电机，所述工作台面的下部设有竖直固定的转轴，转轴内设有轴向布置的通气道，所述底座的下方设有基座，所述基座上设有可与通气道连通的通气孔，所述工作台面上设有与通气道连通的真空吸盘，所述工作台面和底座之间设有静压轴承。本实用新型旨在提供种结构紧凑、定位精度较高的高转速闭式静压回转工作台。