Coolant supply equipment, machine tool, method of supplying coolant to machine tool

A coolant supply equipment to be installed in a machine tool, comprising:

• a plurality of coolant supply conduits;
• a plurality of valves provided in the plurality of coolant supply conduits, respectively, each of the plurality of valves being configured to control a flow amount of coolant flowing in each of the plurality of coolant supply conduits;
• a plurality of nozzles connected to the plurality of coolant supply conduits, the coolant being to be discharged through the plurality of nozzles;
• a coolant tank configured to store the coolant;
• a pump connecting the plurality of coolant supply conduits and the coolant tank, the pump being configured to discharge the coolant stored in the coolant tank to the plurality of coolant supply conduits;
• and
• a computer-readable recording program storing a program for causing a numerical control computer of the machine tool to execute a process comprising:
• reading, from a machining program, a called code of at least one coolant assignment code, each of the at least one coolant assignment code being to instruct to open or close the plurality of valves and to instruct a degree of discharge of the coolant from the pump;
• controlling the opening and closing of the plurality of valves based on the called code;
• and
• controlling the pump to discharge the coolant by the degree of discharge based on the called code.

A machine tool comprising:

• a plurality of coolant supply conduits;
• a plurality of valves provided in the plurality of coolant supply conduits, respectively, each of the plurality of valves being configured to control a flow amount of each of the plurality of coolant supply conduits;
• a plurality of nozzles connected to the plurality of coolant supply conduits, coolant being to be discharged through the plurality of nozzles;
• a coolant tank configured to store coolant;
• a pump connecting the plurality of coolant supply conduits and the coolant tank, the pump being configured to discharge the coolant stored in the coolant tank to the plurality of coolant supply conduits;
• interpreter circuitry configured to read, from a machining program, a called code of at least one coolant assignment code, each of the at least one coolant assignment code being to instruct to open or close the plurality of valves and to instruct a degree of discharge of the coolant from the pump;
• valve control circuitry configured to control the opening and closing of the plurality of valves based on the called code;
• and
• pump control circuitry configured to control the pump to discharge the coolant by the degree of discharge based on the called code.