Abstract: A machine tool with a machine frame open at three sides, in the shape of the letter C, having upper and lower die supports disposed on the machine frame, a drive cradle disposed on the upper die support, a saddle plate disposed on the lower die support and a tool unit comprised or an upper die and a lower die in a guide frame. The machine tool has in particular a cutting unit or a coping unit, with T-groove coupling means being provided on the upper and lower die supports for connection with tool unit; wherein said tool unit as a whole is insertable between the upper and the lower die supports in the longitudinal direction of the machine frame from the direction of the open front end. In operations the tool unit is highly flexible because the saddle plate is rotatable in the horizontal plane with respect to the lower die support.

Abstract: A machine tool having a machine frame open on three sides in the shape of the letter C, comprising an upper die support, disposed on the machine frame and vertically movable by a drive cradle, with at least two die holding fixtures placed side by side and having corresponding upper dies, a lower die support disposed on the machine frame with a corresponding number of die holding fixtures placed side by side and having corresponding lower dies, and a matrix plate clamped on the lower die support, disposed in a frame containing the die holding fixtures. In this configurement, it is possible to use a self-guided tool unit in an equally flexible manner as the normal upper and lower dies, by disposing, instead of a lower die, a tool unit comprising an upper die and a lower die contained in a guide frame, such as a cutting unit or a coping unit, on a matrix plate in a corresponding die holding fixture, and to drivingly couple it with the upper die support.