| 摘要 |
A numerical controller has a test mode of a machining program, sets, for each axis, a neighboring distance from a movement prohibition boundary of a tool or a workpiece, and temporarily stops an axis movement at a boundary of a near region thereof. A movable distance in a direction approaching the movement prohibition boundary is obtained for each axis such that the movable distance is less than a distance to the movement prohibition boundary. Further, if an axis exceeding the movable distance is present, an axis movement is stopped by restricting a movement distance within a range not exceeding the movable distance. |
| 主权项 |
1. A numerical controller for controlling a machine tool by relatively moving a tool and a workpiece based on an instruction of a machining program, the numerical controller having a test mode of the machining program, the numerical controller comprising:
a neighboring distance setting section that sets, for each axis, a neighboring distance from a movement prohibition boundary of the tool or the workpiece; a neighboring boundary axis-stop section that temporarily stops, in the course of the test mode, an axis movement at a boundary of a near region determined based on the neighboring distance set by the neighboring distance setting section and the movement prohibition boundary; a movable distance calculation section that obtains, for each axis, a movable distance in a direction approaching the movement prohibition boundary such that the movable distance is less than a distance to the movement prohibition boundary, in the course of test mode and in an axis movement within the near region; a movement distance determination section that determines whether a movement distance of each axis moving in the course of the test mode exceeds the movable distance obtained by the movable distance calculation section; and an axis movement restriction section that stops an axis movement by restricting a movement distance within a range not exceeding the movable distance when an axis exceeding the movable distance is determined to be present. |
