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.

To provide a clamp apparatus including swinging fulcrums on a side of a swinging body, in which the clamp apparatus swings about the swinging fulcrum at the time of opening a channel mouth and at an initial stage to start clamping of the channel mouth, and as swinging for the clamping progresses, the clamp apparatus shifts to other swinging fulcrum located at an upper part of a clamping point to complete clamping.

A combination machine for folding and die bending a workpiece includes a lower tool holder configured to releasably receive at least one lower bending tool; an upper tool holder configured to releasably receive at least one upper bending tool and which can be advanced in a straight line in an advancing direction toward the lower tool holder; a pivotable tool holder configured to releasably receive at least one bending tool to be pivoted and which can be pivoted relative to the lower tool holder about a pivot axis running perpendicular to the advancing direction of the upper tool holder; and a machine body on which the upper tool holder is arranged. The machine body is configured to absorb bending forces occurring in the advancing direction of the upper tool holder and bending forces occurring during pivoting of the pivotable tool holder depending on the progress of the bending process.

A press brake assembly configured to bend a workpiece that includes an upper beam configured to hold an upper punch and a lower beam configured to hold a lower die. A safety latch is disposed within a safety latch cavity of the upper punch, and the upper punch is partially housed within a first cavity of the upper beam. A biasing member is also disposed within the safety latch cavity. A pin extends from a lateral side of the upper punch through the safety latch, and the safety latch is configured to rotate about the pin. The safety latch includes a cam configured to engage the upper beam within a second cavity of the upper beam. The biasing member is configured to bias the cam in a forward direction towards the upper beam cavity to prevent the upper punch from disengaging the upper beam.

A tool holder for locating and seating varieties of differing tools. The tool holder is usable with press brake tools as well as tools for other industrial machines and equipment. The tool holder includes a clamp and a supporting body. The clamp is an assembly and, via collective operation of its components, functions with the supporting body to locate and seat tools of a variety of differing styles, sizes, and geometries.

A tool holder assembly, as well as activation system used therewith. In some cases, the tool holder assembly is configured to shift as needed to engage tooling when the assembly is activated. For instance, the assembly has an activation system that is in fluid communication with one or more fingers via an intermediary.

In an installing method for installing divided upper tools to upper tool holders disposed to be spaced at an appropriate interval in a left-right direction in a lower portion of an upper table of a press brake, by using a tool changer, a round bar-shaped finger provided in the tool changer is engaged in a circular engagement hole provided at a central portion in the lateral direction of each divided upper tool. The divided upper tool is temporarily positioned in a gap between an upper tool holder to which the divided upper tool is to be installed, and an adjacent upper tool holder. The temporarily positioned divided upper tool is moved in the left-right direction to be installed to the upper tool holder to which the divided upper tool is to be installed.

A clamping system for a press brake includes an elongate beam having a receiving space for receiving a part of a bending tool. The elongate beam has at least two cavities formed therein, where each of the at least two cavities has an opening to the exterior of the elongate beam. The at least two cavities are interconnected internally. A press brake includes such a clamping system. A method of manufacturing an elongate beam for such a clamping system includes a step of providing a fluid connection to each of at least two cavities in the elongate beam by interconnecting the at least two cavities by machine from inside at least one of the at least two cavities.

A gathering operation includes a restraint operation of moving forward a left lower tool retention member so as to restrain a reference lower tool with the left lower tool retention member, an inserting operation of moving forward a right lower tool retention member so as to insert the right lower tool retention member into an insertion hole of a target lower tool, and an execution operation of moving the left and right lower tool retention members along a left-right direction so as to come close with each other. If a failure of the inserting operation is determined, a control device performs a retry operation of moving forward the right lower tool retention member again so as to insert the right lower tool retention member into the insertion hole (141) of the target lower tool after moving backward the left lower tool retention member.