A machine tool includes a machining chamber, an illuminator in the machining chamber, and an NC unit. The NC unit includes a manual execution unit for executing the machining operation via a pulse signal generated in response to operation of a manually operated part, and has a one-block stop mode in which the NC program is executed for one block and then stopped. A notification unit issues a notification of completion of the execution of one block of the NC program while the machining operation is executed manually using the manual execution unit in the one-block stop mode, and the notification unit includes the illuminator. A change in the illumination state of the illuminator enables an operator to observe the interior of the machining chamber continuously while being notified of the completion of the execution of the one block of the NC program.

A robot controller having a function for mitigating damage to a robot when the robot is brought to an emergency stop, and for facilitating restoration of the robot from the emergency stop. The robot controller has a controlling part which controls a motion of a robot based on a predetermined robot program; a first detecting part which detects a predetermined abnormality which does not require the robot to be immediately stopped; a stopping condition judging part which judges as to whether or not a predetermined stopping condition is satisfied when the first detecting part detects the abnormality; and a stopping process executing part which executes a stopping process of the robot when the stopping condition is satisfied, and does not execute the stopping process when the stopping condition is not satisfied.

A numerical control device stops automatic operation after machining of a specific part without the need to manually modify a machining program or to perform macro computation. The numerical control device includes a program analysis section that, upon executing a command program for continuously machining a plurality of parts, analyzes the command program, an analyzed program execution unit that executes the command program analyzed, a program stop condition setting section that sets a program stop condition in the command program based on a machining stop condition specified by a user, a program stop determining section that determines whether an execution block of the command program satisfies the program stop condition based on an analysis result, and a program stop requesting section that, when it is determined that the execution block satisfies the program stop condition, outputs an execution block stop request to the analyzed program execution unit.

The information processing apparatus analyzes a machining program, determines whether or not there is a block fulfilling conditions for grouping that are registered in advance in the machining program, and if present, specifies the range of blocks to be grouped according to the grouping conditions, and performs simplified display for the plurality of consecutive blocks that have been grouped on a screen.

A numerical control device stops automatic operation after machining of a specific part without the need to manually modify a machining program or to perform macro computation. The numerical control device includes a program analysis section that, upon executing a command program for continuously machining a plurality of parts, analyzes the command program, an analyzed program execution unit that executes the command program analyzed, a program stop condition setting section that sets a program stop condition in the command program based on a machining stop condition specified by a user, a program stop determining section that determines whether an execution block of the command program satisfies the program stop condition based on an analysis result, and a program stop requesting section that, when it is determined that the execution block satisfies the program stop condition, outputs an execution block stop request to the analyzed program execution unit.

The information processing apparatus analyzes a machining program, determines whether or not there is a block fulfilling conditions for grouping that are registered in advance in the machining program, and if present, specifies the range of blocks to be grouped according to the grouping conditions, and performs simplified display for the plurality of consecutive blocks that have been grouped on a screen.

A machine tool includes a machining chamber, an illuminator in the machining chamber, and an NC unit. The NC unit includes a manual execution unit for executing the machining operation via a pulse signal generated in response to operation of a manually operated part, and has a one-block stop mode in which the NC program is executed for one block and then stopped. A notification unit issues a notification of completion of the execution of one block of the NC program while the machining operation is executed manually using the manual execution unit in the one-block stop mode, and the notification unit includes the illuminator. A change in the illumination state of the illuminator enables an operator to observe the interior of the machining chamber continuously while being notified of the completion of the execution of the one block of the NC program.

A numerical controller estimates a machining continuable time before a currently controlled motor overheats if an output of the motor exceeds a continuous rated output and predicts respective execution times of command blocks and the machining continuable time for each command block, for a currently running block and its subsequent command blocks. Based on these predicted data, the numerical controller identifies a command block (alarm generation block) in which the motor overheats and a command block (stop block) in which driving control can be safely stopped, within the range of command blocks from the currently running command block to the alarm generation block.