Information processing system and machine tool

A machine tool comprising:

• (a) a magazine for accommodating a plurality of tools;
• (b) a tool rest including a plurality of stations to which the plurality of tools are attached;
• and
• (c) an information processing unit including a processor and a storage device, wherein the processor includes a request accepting unit, a selecting unit, a determining unit, and an informing unit;
• and
• the storage device includes a magazine-definition-information storing unit, a tool information storing unit, and a pot-use-status storing unit,
• wherein the request accepting unit accepts a selected pot request for selecting a pot to store a tool selected to be stored in a pot of the machine tool magazine;
• the magazine-definition-information storing unit includes a plurality of cells including a first cell, a second cell, and a third cell in each of which a length from a predetermined position of each of a first pot and a second pot can be set according to a structure of the machine tool magazine, the magazine-definition-information storing unit stores a setting value in each of the first cell, the second cell, and the third cell of the selected pot;
• the tool information storing unit stores tool information for a plurality of tools including identification information of a cell applicable to each of the tools;
• the pot-use-status storing unit stores information of a tool stored in each of the pots;
• the selecting unit, in accordance with the identification information of the cell applicable to the selected tool, selects one of the cells when the selected pot is the first pot, and in accordance with the identification information of the cell applicable to a tool stored in an adjacent pot near the selected pot, selects one of the cells when the adjacent pot is the second pot;
• the determining unit determines whether a storage condition to store the selected tool in the selected pot is met by comparing a sum of the setting value of the one cell selected for the selected pot and the setting value of the one cell selected for the adjacent pot with a distance between the predetermined position of the adjacent pot and the predetermined position of the selected pot;
• and
• the informing unit informs when the condition to store the selected tool in the selected pot is not met,
• wherein the magazine-definition-information storing unit stores a first setting value, a second setting value, and a third setting value indicating lengths from the predetermined position of each pot respectively in the first cell, the second cell, and the third cell for each of the pots.