Cutting – Tool engages work during dwell of intermittent workfeed – Work-feed element contacts and moves with work
Patent
1995-09-21
1997-12-30
Jones, Eugenia
Cutting
Tool engages work during dwell of intermittent workfeed
Work-feed element contacts and moves with work
83412, 83460, 83461, 269 32, 269152, 269234, B26D 702
Patent
active
057017913
ABSTRACT:
A workpiece being processed on a machine tool is moved by control devices to the tool head or work station of the machine mechanically or automatically. A stop defines an area around the work station from which the holding devices must be kept to prevent damage. As soon as a holding device reaches the limit of the danger zone around the tool head, it is switched into a setting releasing the workpiece and moves into a position away from the work station. The machine has a switching element connected to each holding device to be so movable, and the switching element has a switching slide which is acted on by an applied force and is supported in a first position until it abuts the stop when one slide position connects the energy source to the drive of the holding device to move it away from the stop. In another slide position, the connection to the energy source is broken and the holding device returns to the workpiece holding position.
REFERENCES:
patent: 3174747 (1965-03-01), Friedland et al.
patent: 3626790 (1971-12-01), Pinat
patent: 3758099 (1973-09-01), Scott
patent: 4297927 (1981-11-01), Kuroda
patent: 4519284 (1985-05-01), Hunter et al.
patent: 4523749 (1985-06-01), Kindgren et al.
patent: 4589317 (1986-05-01), Kawano
Bytow Peter
Schulze Eckehart
Jones Eugenia
Trumpf GmbH & Co.
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