Has the following characteristics:1, with a centralized control throttle throttle control, the oil chamber with fixed throttle ratio, adjustable throttle throttle mode;2, the use of closed three rectangular guide hydrostatic guideway structure, the composition of the three rectangular "anti goods" structure;3, due to the use of centralized control of the throttle, the static pressure of each guide can float in 0.02-0.05mm,4, the guide has a total of 36 oil chambers, of which the upper and lower static oil chamber 24, left and right oil chamber of the 12;5. The oil cavity of the guide rail is a whole oil cavity, and the guide rail has good rigidity, which greatly reduces the elastic deformation of the guide rail;
The hydraulic drive center frame drives the claw body to move through the sliding block, realizes automatic centering, and has high centering precision, and greatly improves the processing efficiency and the processing precision;