Clamping device for plates or profiled elements placed one again

Details Clamping device for plates or profiled elements placed one again Clamping device for plates or profiled elements placed one again

1989-05-05

1990-05-01

Watson, Robert C.

Work holders

With fluid means

Cylinder-piston means in series with additional positioning...

B23Q 303

Patent

active

049212338

ABSTRACT:
This invention relates to a clamping device for plates (3, 4) comprising at least one clamping head (5) including a body (11), a clamping member (12) adapted for rotating around a fixed axle (22) and rotation means (23) for rotating said clamping member (12) around said fixed axle (22) comprising at least a link (24) pivotably fixed to said clamping member (12), a carriage (28) provided with a roller (30) moveable substantially linearly along at least one guiding ramp (31) having a curved contact surface for engagement with the concave roller the curvature axis of which are located on one side of the fixed axle (22) with respect to the plane (45) defined by the central axis (26') of the link (24) and the central axis (29') of the roller (30). The distance (d) between the central axis (26') and the central axis (29') is greater than the distance (d') between the central axis (22') of the fixed axle (22) and a plane (51) parallel to the fixed axle (22) extending through the central axis (29') when the carriage is in said clamping position.

REFERENCES:
patent: 3702185 (1972-11-01), Blatt
patent: 4240620 (1980-12-01), Tunkers
patent: 4591138 (1986-05-01), Balls et al.
patent: 4637597 (1987-01-01), McPherson et al.

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