THE ACCURACY OF THE SPINDLE KNOTS ON ADJUSTABLE HYDROSTATIC BEARINGS
DOI:
https://doi.org/10.20535/2305-9001.2013.69.29011Keywords:
Precision, Adjustable hydrostatic bearing, Spindle knot, Characteristic vector of spindleAbstract
Purpose. Definition and analysis of the indicators of the spindle knot accuracy on the basis of the probability approach and evaluating the effectiveness of hydrostatic bearings adjustable types to increase the accuracy of the machine tools spindle knot.
Design/methodology/approach. In the work implemented probabilistic approach to determine the precision of spindle knot. Accuracy was assessed by the statistical characteristics of random spindle characteristic vector.
Findings. Approaches to the definition of statistical regularities of the formation of the source precision spindle knot on a hydrostatic bearings adjustable type. The influence of regulation of consumption characteristics and geometric parameters of bearings on the accuracy of the spindle knot. The results of the experimental studies of the accuracy of grinding machine tools with adjustable hydrostatic supports of spindle knot. Results of spectral analysis of the party samples of the products and regularities of the formation of significant harmonic spectrum depending on the static radial gap in the pillars of the spindle.
Originality/value. Certain statistical regularities of formation of the initial accuracy of rotation of a spindle on the basis of research of the spatial position of the characteristic vector spindle.
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