Tool mounting stocker, tool storing device and tool/hand storing device, and tool replacing method by robot and control device thereof

A plurality of tool mounting stockers movably disposed inside a tool storing device, each of the plurality of tool mounting stockers for storing a respective punch and a respective die to be employed in a press brake, each of the plurality of tool mounting stockers comprising:

• a respective upper slot that opens upward in a vertical direction;
• and
• a respective lower slot that opens downward in the vertical direction and that is disposed below the respective upper slot in the vertical direction, wherein
• each of the plurality of tool mounting stockers is configured so as to be movable between a first position in which a path line of the respective punch thereof coincides with a path line of a punch holder on the press brake, and a second position in which the path line of the respective punch thereof does not coincide with the path line of the punch holder on the press brake, and each of the plurality of tool mounting stockers is further configured so as to be movable between a third position in which a path line of the respective die thereof coincides with a path line of a die holder on the press brake, and a fourth position in which the path line of the respective die thereof does not coincide with the path line of the die holder on the press brake, and
• within each of the plurality of tool mounting stockers, the upper slot thereof is configured to engage a first surface of the respective die and the lower slot thereof is configured to engage a first surface of the respective punch such that the respective first surfaces of the respective die and the respective punch are disposed proximal one another in the vertical direction.