Abstract: A method of controlling a cooling device for cooling a cutting tool in a machine tool. The method comprising the steps of: controlling the motor to drive the pump in such a manner that the pump feeds the nozzle with machining fluid at a constant flow rate D1 that is equal to a first flow rate setpoint; measuring a parameter P representative of a fluid outlet pressure from the nozzle; and comparing an estimated outlet pressure Pestim as estimated from the parameter P with a first predetermined pressure threshold Ps1, and controlling the motor so as to increase the fluid flow rate D1 as delivered by the pump if the estimated output pressure drops below the first pressure threshold Ps1.

Abstract: A method of controlling a cooling device for cooling a cutting tool in a machine tool. The method comprising the steps of: controlling the motor to drive the pump in such a manner that the pump feeds the nozzle with machining fluid at a constant flow rate D1 that is equal to a first flow rate setpoint; measuring a parameter P representative of a fluid outlet pressure from the nozzle; and comparing an estimated outlet pressure Pestim as estimated from the parameter P with a first predetermined pressure threshold Ps1, and controlling the motor so as to increase the fluid flow rate D1 as delivered by the pump if the estimated output pressure drops below the first pressure threshold Ps1.