Workholding wedge clamp
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United States of America Patent
Stats
-
Feb 17, 1998
Grant Date -
N/A
app pub date -
Jul 11, 1996
filing date -
Apr 21, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wedge workholding clamp has a clamp body that is adapted for mounting onto a table and is used for holding various objects, and specifically for holding piece parts in machining. The clamp body slidably mounts a movable jaw that is actuated with a wedge using a clamping screw. When a single jaw is actuated, the clamp body has one reaction surface that is square with the direction of clamping and parallel to the axis of the screw. The wedge has an end surface that engages and moves along the reaction surface of the clamp body as the wedge is tightened so there are no bending loads on the screw. The wedge also has a wedge surface that engages a surface of the movable jaw and which acts to move the movable jaw from a released position to a position clamping a workpiece. The clamp body carries a resiliently movable pin projecting into a receptacle in the movable jaw to provide a spring force tending to move the movable jaw and wedge to the released position, and to retain the movable jaw in position on the clamp body during normal operations. The movable jaw and wedge have guide flanges or mating slot walls to guide the movable jaw and wedge and protect the work holding clamp from chips.
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