Coordinate measuring machine with vibration dampening system
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United States of America Patent
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-
Aug 27, 1991
Issued Date -
N/A
app pub date -
Sep 11, 1989
filing date -
Feb 10, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vibration dampening system particularly for use in a gantry-type coordinate measuring machine. The vibration dampening system includes a vibration damper in the gantry structure, a vibration damper in the Z-rail, and means in the supports for the base for dampening vibrations, all of which work together cooperatively to damp vibrations in the coordinate measuring machine. The vibration damper in the gantry structure and in the Z-rail each comprises a substantial mass suspended by pads of material having high energy absorbence and a low rebound resilience. The vibration dampening means in the table means includes a layer of material which is highly energy absorbent and has a low rebound resiliency, and which is disposed between two rigid plates positioned between each supporting leg of the table and an underlying floor. The vibration dampening system is tuned to provide maximum energy absorbency at major modes of vibrations in the machine during acceleration and deceleration.
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