Machine tool, coolant control method, and program for machine tool

A coolant control method using a machine tool provided with:

• a discharge mechanism configured to discharge coolant into the machine tool;
• a tank configured to store the coolant to be supplied to the discharge mechanism;
• a pump device that is provided on a flow path connecting the tank and the discharge mechanism and configured to pump the coolant;
• a fluid sensor that is provided on the flow path and configured to measure a pressure or flow rate of the coolant flowing on the flow path;
• a controller configured to control the pump device based on a deviation between a set value relating to the pressure or flow rate of the coolant and a measured value measured by the fluid sensor;
• and an operation panel that is provided at a position outside the machine tool where an operator can observe an interior state of the machine tool, or that is configured to allow an image of the interior state of the machine tool to be checked, the operation panel including a reception device configured to receive an operation for changing a current set value by a predetermined value or changing the current set value by a predetermined multiple,
• wherein the controller is caused to update the current set value to another value in response to the operation received by the reception device.

A non-transitory recording medium storing a machine tool program used in a machine tool provided with:

• a discharge mechanism configured to discharge coolant into the machine tool;
• a tank configured to store the coolant to be supplied to the discharge mechanism;
• a pump device that is provided on a flow path connecting the tank and the discharge mechanism and configured to pump the coolant;
• a fluid sensor that is provided on the flow path and configured to measure a pressure or flow rate of the coolant flowing on the flow path;
• a controller configured to control the pump device based on a deviation between a set value relating to the pressure or flow rate of the coolant and a measured value measured by the fluid sensor;
• and an operation panel that is provided at a position outside the machine tool where an operator can observe an interior state of the machine tool, or that is configured to allow an image of the interior state of the machine tool to be checked, the operation panel including a reception device configured to receive an operation for changing a current set value by a predetermined value or changing the current set value by a predetermined multiple,
• wherein the controller functions as a set value update unit configured to update the current set value to another value in response to the operation received by the reception device.