Multiplexing of pneumatic tooling
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 7, 2000
Grant Date -
N/A
app pub date -
Apr 10, 1998
filing date -
Jul 7, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for operation of pneumatic tooling has a plurality of pneumatically operable tools (2). A servo-controller (21) is switchable to actuate any of the plurality of tools, to move that tool to a desired position. A position transducer (4) includes an element (9, 10) which is displaced from a home position by such actuation of any one of the tools. The position transducer sends a position feedback signal to indicate to the servo-controller when the desired tool position has been reached. The servo-controller is switchable by virtue of having its output connected to a number of valves (22), i.e. one valve per tool, where preferably only one valve is energized at a time. When a valve is at rest, the pneumatic circuit is such that the tool is held in its home position. When energized, the servo-controller outputs are routed to the tool to operate the tool.
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