NC Machine Tool
AssigneeYamazaki Mazak Corporation
InventorsHiroshi Itoh, Yasuharu Sumida, Kazuhiro Kikata
Life of this patent
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Abstract
The NC device of the machining center has the data memory for storing exchange history and data concerning a tool therein when the tool has been manually exchanged. When the data concerning the tool is updated, the data memory also stores update history. The main control unit determines whether the tool is changed on the basis of at least either of the exchange history and the update history. On the basis of a determination result, the main control unit controls the spindle head moving unit to stop the tool as well as allows a caution about the tool to be displayed on the display unit.
Claims15
An NC machine tool that moves a head, to which a tool is attached, and a work relative to each other, thereby machining the work with the tool, the NC machine tool comprising:
- a first storage device for storing, when the tool has been manually exchanged, history of the exchange;
- a second storage device for storing data on the tool;
- a third storage device for storing, when the data is updated, history of the update;
- a determination device for determining whether there has been a change related to the tool on the basis of the exchange history and the update history;
- a controller for stopping movement of the tool on the basis of a determination result of the determination device;
- and
- an alarm device for issuing an alarm about the tool on the basis of the determination result of the determination device.
Dependencies are inferred from the claim text.