| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a numerical control device and a control method configured to move a tool to a standby position before replacing the tool only when the tool does not interfere with a workpiece or a jig. <P>SOLUTION: A CPU calculates axial movement parameters of a spindle head and stores them in a RAM when there is an axial movement command in a machining program (S19). The axial movement parameters include the minimum coordinate value and the maximum coordinate value for each feed shaft of the next tool. When there is a tool replacement command in the machining program, the axial movement parameters of a block for instructing the axial movement before replacing the tool are acquired from the RAM (S15). Interference parameters indicating an area in which the tool interferes with the workpiece or a jig device are stored in a non-volatile storage device. On the basis of the interference parameters, it is determined whether or not the axial movement parameters satisfy the non-interference condition (S16), and when the non-interference condition is satisfied (S16: YES), a pot machining command is added to the axial movement command before replacing the tool (S17). <P>COPYRIGHT: (C)2013,JPO&INPIT |
