Precision clamping device with digitally programmable load
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United States of America Patent
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Sep 22, 1998
Grant Date -
N/A
app pub date -
Sep 6, 1996
filing date -
Sep 6, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A linear actuator is used to push a spring-loaded ram. The loading force of the spring against a stationary workpiece is calibrated with the displacement of the ram once the load exceeds the spring preset value. At a preset loading position, an electrical contact opens, indicating that the spring load has reached or exceeded the preset value. A mechanical stop, acting in conjunction with the stall characteristics of the linear actuator, prevents the operating range from being exceeded. This device has applications where precise standoff from a surface, the application of a precise force to that surface, and a controlled rate of the application of the force is needed.
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