Abstract: A technique for preventing a coolant from adhering to a discharge inhibited portion is provided. A machine tool capable of machining a workpiece includes: a first discharge unit that discharges the coolant removing a chip of the workpiece; a portion inside the machine tool and to which the coolant should not be discharged; a first drive unit that changes a relative position between the first discharge unit and the portion; and a control unit that controls the machine tool. The control unit performs processing for recognizing a position in the machine tool of a moving object by the first drive unit between the first discharge unit and the portion, and processing for controlling the discharge of the coolant by the first discharge unit such that the coolant is not discharged to the portion based on the position recognized in the recognition processing.

Abstract: A numerical control (NC) program generating apparatus includes a standby state analyzing unit 12 analyzing an NC program to determine whether a block in which an operation unit is brought into a standby state is present, and when such a block is present, determining whether a power source 39, 45, 46 corresponding to the operation unit can be stopped at the time of execution of the block to specify a stoppable block, and a power operation code inserting unit 13 inserting an operation code for stopping the corresponding power source 39, 45, 46 at the time of execution of the stoppable block into the NC program and inserting an operation code for restarting the power source 39, 45, 46 after the execution of the block into the NC program.

Abstract: An automatic tool changer (ATC) serves as an ATC for automatically changing a tool attached to a lower tool rest of a machine tool. The ATC includes a robot arm and a movement mechanism unit moving the robot arm between inside and outside of a machining area. The robot arm has a base unit coupled to the movement mechanism unit, an arm unit pivotably coupled to the base unit, and a gripping unit provided in the arm unit and detachably gripping the tool. The arm unit is formed to extend in an arm shape from the base unit toward the gripping unit, and swings on a pivot axis as a fulcrum relative to the base unit. By such a configuration, an ATC implementing an automatic change of a tool by a simple and compact mechanism and a machine tool including such an ATC are provided.

Abstract: An automatic tool changer (ATC) serves as an ATC for automatically changing a tool attached to a lower tool rest of a machine tool. The ATC includes a robot arm and a movement mechanism unit moving the robot arm between inside and outside of a machining area. The robot arm has a base unit coupled to the movement mechanism unit, an arm unit pivotably coupled to the base unit, and a gripping unit provided in the arm unit and detachably gripping the tool. The arm unit is formed to extend in an arm shape from the base unit toward the gripping unit, and swings on a pivot axis as a fulcrum relative to the base unit. By such a configuration, an ATC implementing an automatic change of a tool by a simple and compact mechanism and a machine tool including such an ATC are provided.

Abstract: An NC program generating apparatus includes a standby state analyzing unit 12 analyzing an NC program to determine whether a block in which an operation unit is brought into a standby state is present, and when such a block is present, determining whether a power source 39, 45, 46 corresponding to the operation unit can be stopped at the time of execution of the block to specify a stoppable block, and a power operation code inserting unit 13 inserting an operation code for stopping the corresponding power source 39, 45, 46 at the time of execution of the stoppable block into the NC program and inserting an operation code for restarting the power source 39, 45, 46 after the execution of the block into the NC program.