A method for driving a piercing element includes: preparing a plate material, the piercing element, a preceding punch, and a die; arranging the plate material on a hole portion of the die; arranging the piercing element and the preceding punch in order downward from above on the plate material and on a position corresponding to the hole portion; punching the plate material via the preceding punch by pressing the piercing element downward; dropping a punched piece downward from the hole portion; following the punching of the plate material, driving the piercing element to be embedded in the plate material and causing the plate material to bite a constricted portion; and dropping the preceding punch downward from the hole portion.

A method for driving a piercing element includes: preparing a plate material, the piercing element, a preceding punch, and a die; arranging the plate material on a hole portion of the die; arranging the piercing element and the preceding punch in order downward from above on the plate material and on a position corresponding to the hole portion; punching the plate material via the preceding punch by pressing the piercing element downward; dropping a punched piece downward from the hole portion; following the punching of the plate material, driving the piercing element to be embedded in the plate material and causing the plate material to bite a constricted portion; and dropping the preceding punch downward from the hole portion.

The disclosure relates to a tool storage device for a machine tool having a tool storage unit which can be mounted and displaced on a guide rail of the machine tool and is further designed to receive non-mounted tools for the machine tool.

Die sets for crimping busses to electrical connectors are provided. The die set includes a pair of dies where one die has a guide member for aligning the dies with the electrical connector, and the other die has a one or more indentors for impacting the electrical connector. The electrical connectors include a guide hole that receives the guide member.

Die sets for crimping busses to electrical connectors are provided. The die set includes a pair of dies where one die has a guide member for aligning the dies with the electrical connector, and the other die has a one or more indentors for impacting the electrical connector. The electrical connectors include a guide hole that receives the guide member.

An upper tool stocker for detachably supporting a plurality of divided upper tools in a press brake includes a stocker main body extending in a left-right direction, and provided with a left-right directional installing groove, attachment portions provided in upper portions of the divided upper tools being detachably installed in the installing groove, wherein the stocker main body includes a front-back directional cutout communicated with the installing groove to remove the divided upper tools downward or in the front-back direction from the installing groove.

Provided is an adjustment device of a punching device which punches a workpiece placed on a die having a punching die with a punch so that the workpiece is punched into a predetermined shape. The adjustment device of the punching device includes a first drive mechanism that moves the punch or the die in a direction orthogonal to a punching direction, and a controller connected to the first drive mechanism in a communicable manner. The controller brings the punch and the die into contact with each other by moving the punch or the die in four orthogonal directions in a plane perpendicular to the punching direction from an initial position where the punch is inserted into the punching die. Based on a distance between the initial position and each contact position in the four directions, the controller causes the first drive mechanism to move the punch or the die to a center position where a central axis of the punch and a central axis of the die are aligned with other.

Provided is an adjustment device of a punching device which punches a workpiece placed on a die having a punching die with a punch so that the workpiece is punched into a predetermined shape. The adjustment device of the punching device includes a first drive mechanism that moves the punch or the die in a direction orthogonal to a punching direction, and a controller connected to the first drive mechanism in a communicable manner. The controller brings the punch and the die into contact with each other by moving the punch or the die in four orthogonal directions in a plane perpendicular to the punching direction from an initial position where the punch is inserted into the punching die. Based on a distance between the initial position and each contact position in the four directions, the controller causes the first drive mechanism to move the punch or the die to a center position where a central axis of the punch and a central axis of the die are aligned with other.

A tool cartridge for accommodating tool parts of a multi-part processing tool having a stamp and a die for processing of plate-shaped workpieces is provided. The tool cartridge includes a cartridge base body, a stamp holder for detachably holding a tool part configured as a processing stamp and a die holder for detachably holding a tool part configured as a processing die. The stamp holder includes two cartridge arms pivotable to one another which respectively include a pin for supporting the respective cartridge arm in a pivotable manner. The cartridge base body includes two orifices related to the pins for accommodating the pins in a rotatable manner.

A quick-change die assembly for a necker machine includes an outer die mounting, an outer die, an outer die quick-release coupling, an inner die mounting, an inner die assembly, and an inner die quick-release coupling. The outer die is coupled to the outer die mounting by the outer die quick-release coupling. The inner die assembly is coupled to the inner die mounting by the inner die quick-release coupling.