Cutting – Means to drive or to guide tool – Means to change datum plane of tool or tool presser stroke
Reexamination Certificate
2005-08-02
2005-08-02
Choi, Stephen (Department: 3724)
Cutting
Means to drive or to guide tool
Means to change datum plane of tool or tool presser stroke
C083S049000, C083S689000
Reexamination Certificate
active
06923103
ABSTRACT:
A machine for the multi-stroke, continuous slotting of plate-shaped workpieces and especially sheet metal plates is described. A slotting tool (16) and the workpiece are movable in a forward direction relative to each other in a gate-cutting function and in at least one subsequent slot cutting stroke. This is followed by a return movement in the opposite direction (32) over a return length (A) that corresponds at a maximum to the length of the previously laterally cut slot. This is followed by a cross-cutting stroke in which the strip of material (31) that was laterally cut in the gate-cutting function and the minimum of one subsequent slotting stroke is severed at a distance from the point of its connection to the remaining workpiece. The slotting tool (16) is driven by a cam drive with a drive control, a return-drive system with a return-drive control and a forward-feed drive system with a feed-drive control. These control devices serve to control the slotting tool (16), the return-drive and feed-drive systems of the machine tool.
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Choi Stephen
Costas Peter L.
Pepe & Hazard LLP
Trumpf Werkzeugmaschinen GmbH + Co KG
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