| 摘要 |
PURPOSE:To prevent the interruption of working of an NC machine tool system even in an unmanned operation mode by preventing the useless stops of a machine as much as possible and omitting the human production of the new machining schedules. CONSTITUTION:The reference stand-by time and the prefeed machining order number are inputted by a parameter input means 1. Meanwhile, the stand-by time of each NC machine tool 2 is counted by a timer 3 to the next machining parts. A stand-by comparing means 4 compares the time measured by th timer 3 with the reference stand-by time and informs a time-over state. A schedule production means 5 prefeeds the machining order of the next machining parts by an extent equal to the prefeed machining order number based on the time- over state and produces a new machining schedule. |
