Using the Spindle Cooling Temperature as a Tool for Compensating the Thermal Deformation of Machines
DOI:
https://doi.org/10.14311/1147Keywords:
Machine tool, thermal compensationAbstract
Thermal error compensation of machine tools is a relatively complex problem nowadays. Machine users have very high expectations, and it is necessary to use all means to improve the cutting accuracy of existing machines. This paper deals with a novel approach, which combines standard temperature measurement of a machine tool and new temperature measurement of the spindle cooling liquid. A multinomial regression equation is then used to calculate the compensation correction of the position of the tool. This calculation does not critically overload the control system of the machines, so no external computing hardware is required. The cooling liquid approach improves the accuracy of the machine tool over an operational time of several hours.Downloads
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