Process and device for reciprocal guidance of workpieces and tools that move relative to one another, particularly rolling seam welding machines
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United States of America Patent
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Nov 15, 1988
Grant Date -
N/A
app pub date -
Feb 6, 1987
filing date -
Feb 7, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a process for guiding workpieces on a rolling seam welding machine or vice versa. In the process the relatively moved part is driven via its guide means of a continuous path manipulating device in an extra conveyor motion in the same direction and with the same speed as a tool-caused conveyor motion. The two conveyor motions are monitored for synchronicity by a displacement sensor that is connected for control purposes with a control unit of the manipulating device. When a difference occurs between the two conveyor speeds, manifested by the turning of the moved part around the displacement sensor, one of the two conveyor speeds is readjusted, with short-term over-compensation of the difference.
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