Stama Maschinenfabrik Gmbh

Karl Frommer

Peter Grund

Achim Feinauer

Rolf Kuppinger

A workpiece is machined using a first cutting tool and subsequent cutting tools in a predefined time sequence. The sequence of cutting tools defines a sequence of previous and subsequent cutting tools, with each previous cutting tool being replaced by a subsequent cutting tool in the course of the machining operations. Each previous cutting tool, which is replaced by a subsequent cutting tool, is deposited at a defined storage place in a tool magazine. When being put back into the tool magazine, the previous cutting tools are distributed to the storage places in a spatial sequence which is different from a spatial sequence at the start of the machining operations and which substantially corresponds to the time sequence.

Method and apparatus for machining workpieces

A machine tool comprises a tool carrier moveable relative to a workpiece to be machined. A controller controls the relative movement of the tool carrier and the workpiece by means of a control program. If an unplanned event occurs during the operational movement of the machine, the relative movement of the tool and the workpiece is stopped, and a restart from a starting position is carried out later. The starting position is in this case approached along a trajectory, and the trajectory is determined automatically as a function of the machining operation in which the unplanned event occurred.

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Schlierbach, Germany

Karl Frommer