Arrangement for centering and clamping work pieces
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United States of America Patent
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Feb 13, 1990
Grant Date -
N/A
app pub date -
Jun 18, 1988
filing date -
Jul 14, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arrangement for centering and clamping of work pieces comprises tension levers swingably supported on a base plate, the tension levers of which are arranged coaxially on a pivot, while the other tension lever is supported on a second pivot which has the same distance to the center of the arrangement as the hinge pin. The contact surfaces with which the tension levers grasp a work piece, are designed so that the perpendicular line extends on the particular tangent at the contact point between contact surface and work piece through the center of the arrangement. This forces the work piece, independently of its diameter, continuously into the center in the clamping process and, consequently, centers it. Due to the arrangement of the tension levers, inserting work pieces transversely to the chuck axis is possible in spite of the center clamping process.
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