Apparatus for clamping a work piece at a work station of a machi

Details Apparatus for clamping a work piece at a work station of a machi Apparatus for clamping a work piece at a work station of a machi

1994-03-07

1995-05-16

Watson, Robert C.

Work holders

Work-underlying support

Support mounting means

B23Q 108

Patent

active

054153840

ABSTRACT:
An apparatus for clamping a work piece comprises a base and a work piece carrier adapted to be put onto and fixed to the base. The base and the carrier comprise aligning means to align the position of the carrier relative to the base along three perpendicular coordinate axes as well as the angular position. The aligning means comprises first aligning element pairs in the form of cooperating reference surfaces at the carrier and the base, which define the position of the carrier in the Z-axis. The aligning means further comprises second and third aligning element pairs in the form of cooperating linear aligning element pairs, which define the position of the carrier in the X and Y-axes, respectively. The cooperating pairs each comprise a wedge-shaped centering member and a counterpart member with a matching centering slit. Clamping means is provided for clamping the carrier to the base in a well defined position which is defined by the aligning means. The clamping means comprises a plurality of clamping members, each including a pin member fixed to the carrier and a chuck member located in the base. The carrier comprises a flat surface which faces the base if the carrier is clamped to the base. The flat surface forms one of the reference surfaces. Each one member of the second and third pairs is directly connected to the flat surface. Each pin member is also directly connected to the flat surface.

REFERENCES:
patent: 4390172 (1983-06-01), Gotman
patent: 4586702 (1986-05-01), Chambers
patent: 4735671 (1988-04-01), Stoffel et al.
patent: 4932642 (1990-06-01), Salenbiem et al.
patent: 4934680 (1990-06-01), Schneider
patent: 5246218 (1993-09-01), Yap et al.

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