Establishing an automated caculation program for machine tools’ basic hydrostatic spindle bearing parameters using Matlab software

Abstract

Currently, the machine-building industry in our country still uses Soviet-made
machine tools produced in the latter half of the 20th century, with characteristics
such as steadiness, stablity and precise machining. However, these machines
usually use hydraulic drives for the spindle. The characteristic of hydraulic
lubrication is that the center of gravity varies depending on the speed and load
acting. This makes it difficult to stabilize and improve the quality of the machined
parts required by the industry today. On the other hand, over long-time usage, the
load capacity as well as the stability of center of the shaft and the vibration of the
main axis of these machines is no longer in pristine condition, thus it is necessary to
upgrade the hydrostatic bearing cluster for hydrodynamic clusters on the spinder of
machine tool in order to stabilize the center axis of the workpiece, thereby
improving manufacturing precision.Consequently, it is mandatory to study and
select the appropriate hydrostatic parameters for the cluster in which the calculation
program based on the Matlab application will be a useful tool for selecting
parameters suitable for the level manufacture hydrostatic bearings.