Analysis of the accuracy of spindle unit, when the pressure in the hydrostatic bearings of spindle is regulated

Abstract

The main output indicators of accuracy machine tool, as an element of the technological complex, is a precision of working movements formative units. In this paper experimentally researched regularities of accuracy formation a precision turning machine by the trajectories of spindle movement, when the pressure in the hydrostatic bearings of spindle is regulated. According to the results determination of the statistical characteristics of the trajectories spindle a rational value of the oil pressure in the pockets of the hydrostatic bearings, which provides a maximum machining precision, has been found.