MANUAL FEED CONTROL DEVICE FOR NUMERICALLY CONTROLLED MACHINE TOOL, AND MANUAL FEED CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To eliminate anxiety of a malfunction and the like by resolving operational complexity in a manual feed control device equipped in a numerically controlled machine tool.;SOLUTION: This manual feed control device 10 is provided with an input part 14 having a manually displaceable handle member 12, a signal issuing part 16 issuing an operation signal based on the displacing direction and the displacement of the handle member 12, a processing part 18 processing the operation signal from the signal issuing part 16 and issuing an operation command, and a drive control part 20 controlling the feed motion of a movable structure of the numerically controlled machine tool according to the operation command from the processing part 18. The input part 14 is provided with a changeover instruction means 26 changing over a prescribed directional correspondence between the displacement direction of the handle member 12 and the feed direction of the movable structure 22 of an operation object. The processing part 18 determines the feed direction of the movable structure 22 in compliance with the presence/absence of the changeover instruction of the directional correspondence by the changeover instruction means 26 and instructs the determined feed direction to the drive control part 20 as the operation command.;COPYRIGHT: (C)2004,JPO