MAIN AXIS HEAD DISPLACEMENT REVISION METHOD OF MACHINE TOOL

摘要

A main axis head displacement compensation method of the machine tool is provided, which maintains the surface roughness when processing machining. A main axis head displacement compensation method of the machine tool comprises: an input step(S120) that the present temperature is input from the first installed at the main axis head and second main axis temperature sensor; a calculation step(S160) calculating the difference temperature of the previous temperature and present temperature; a decision step(S170) comparing difference temperature and the maximum permissible difference temperature; a replacing step(S180) replacing the current temperature value with the previous temperature value; a data searching step(S190) searching index in data table; and a thermal deflection calculation step(S200).