| 摘要 |
PURPOSE:To get rid of dwell time for a tool programming change during the machining program as well as to aim at improvement in an operation rate, by making a tool conveyor so as to perform the tool programming change required in the next process during machining program execution on the basis of the command of a computer. CONSTITUTION:When a machining program 13 is started at a machining center 1, a signal 9 is fed to a computer 4, and a tool to be returned to a centralized tool rack 2 from a tool magazine 5 and a tool to be carried into the magazine 5 from the rack 2 are checked and a program change tool list is made out of a tool necessary for a program 14 at the next process and a tool in service in a program 13. Next, when a used tool number 10 is fed to the computer 4 from the machining center 1, looking at the tool list, if the tool number 10 exists there, it is pulled out of the magazine 5, and a programming change command 8 for putting a tool for the program 14 in a pot of the magazine 5 from the rack 2 is given to a tool conveyor 3. Thus, a tool programming change 16 is completed during execution of the program 13, and immediately after completion, the program 14 comes to be executable, whereby dwell time for the tool programming change is brought to nothing so that an operation rate is improved. |
