Tool and method for processing plate-shaped workpieces, in particular metal sheets

A tool for processing plate-shaped workpieces, the tool comprising:

• an upper tool and a lower tool movably disposed toward one another for processing a workpiece arranged between said upper and lower tools;
• said upper tool having a clamping shank and a main body, arranged on a common position axis, and a processing tool mounted to said main body opposite said clamping shank;
• said processing tool of said upper tool having at least one bending edge;
• said lower tool having a main body with a bearing surface for the workpiece and an opening formed within said bearing surface;
• said main body of said lower tool having at least one counterpart bending edge fixedly formed thereon and positioned in said opening formed in said bearing surface;
• said bearing surface being displaceable relative to said counterpart bending edge to enable said counterpart bending edge to protrude from said opening formed in said bearing surface;
• a stroke drive device configured to move said processing tool of said upper tool along a substantially vertical stroke axis and to impart a substantially vertical force for bending the workpiece clamped between the upper and lower tools;
• and
• a drive arrangement for driving one of said processing tool of said upper tool or said main body of said lower tool in a direction substantially orthogonal to the vertical stroke axis and the impart a substantially horizontal force for bending the workpiece clamped between the upper and lower tools.