METHOD OF COMPENSATION OF THERMAL DEFORMATIONS OF METAL-CUTTING MACHINES WITH NC Russian patent published in 2016 - IPC B23Q15/18 

FIELD: machine building.

SUBSTANCE: method includes temperature measurement of thermal active machine assemblies, based on the measured temperature calculation of thermal deformations of the said assemblies, comparison of the said thermal deformations with their set permitted values, and appropriate correction of the movement of the machine working elements as per each controlled coordinate in case of exceedance by the said thermal deformations of set permitted values. At that preliminarily the change rate of the thermal deformations of each thermal active assembly at different machine operation modes are determined based on test results, coefficients of heat transfer of each thermal active assembly are identified using the change rate, and the maximum one is selected, and its appropriate change rate of the thermal deformations is assumed as a base one. During the machine operation the coefficient of the heat transfer of each of the thermal active assemblies, determining the thermal deformations of the end assembly, are maintained at the level ensuring the base change rate of thermal deformations of the said thermal active assemblies by means of their appropriate cooling.

EFFECT: invention increases the process accuracy of the machines with NC.

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