Abstract: A bending machine for metal sheets includes a punch arrangement that supports a set of upper bending tools, a die arrangement that supports at least one set of lower bending tools, a tool magazine of bending tools, a replacing apparatus arranged to take bending tools from the tool magazine and mount them on the punch arrangement and/or the die arrangement and vice versa, and a gripping device configured to simultaneously clasp and move a whole set of bending tools. The tool magazine comprises a plurality of supporting guides that house respective sets of bending tools and a transfer carriage arranged to house a set of bending tools and movable between an exchange position to receive from, or provide to, the gripping device a set of bending tools and a plurality of loading positions to transfer to, or receive from, a supporting guide a set of bending tools.

Abstract: A bending machine for metal sheets includes a punch assembly having an upper tool-holding crosspiece that supports a set of upper bending tools with respective supporting pins and is provided with a guiding groove that is open for receiving the set of upper bending tools. The guiding groove has a lateral supporting groove that receives and supports the supporting pins and maintains the set of upper bending tools slidably coupled to the upper tool-holding crosspiece. The supporting groove has a single second lower opening to allow disengaging/engaging of the supporting pins from/with the supporting groove to remove/insert from/into the upper tool-holding crosspiece at the same time all the upper bending tools. The punch assembly has a single closing element connected to the upper tool-holding crosspiece that is linearly movable between closed and open positions to close and open the second lower opening.

Abstract: A bending machine for metal sheets includes a punch arrangement that supports a set of upper bending tools, a die arrangement that supports at least one set of lower bending tools, a tool magazine of bending tools, a replacing apparatus arranged to take bending tools from the tool magazine and mount them on the punch arrangement and/or the die arrangement and vice versa, and a gripping device configured to simultaneously clasp and move a whole set of bending tools. The tool magazine comprises a plurality of supporting guides that house respective sets of bending tools and a transfer carriage arranged to house a set of bending tools and movable between an exchange position to receive from, or provide to, the gripping device a set of bending tools and a plurality of loading positions to transfer to, or receive from, a supporting guide a set of bending tools.