Combination machine for folding and die bending a workpiece

A method of die bending a workpiece, the method comprising:

• obtaining a machine for folding a workpiece, the machine comprising:
• 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 to 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 which is to be pivoted, the pivotable tool holder pivotable 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 defining a parallelogram structure in cross-section, the parallelogram structure comprising a plurality of side elements positioned above the upper tool holder and aligned with the advancing direction of the upper tool holder, and respective upper and lower elements extending obliquely to the advancing direction of the upper tool holder;
• placing a workpiece in the machine for operative engagement with at least one of:
• at least one lower bending tool received in the lower tool holder,
• at least one upper bending tool received in the upper tool holder, or
• at least one pivotable bending tool received in the pivotable tool holder;
• and
• actuating with a drive of the machine, at least one of the lower tool holder, the upper tool holder, or the pivotable tool holder to thereby die bend the workpiece.