Apparatus for fixing a workpiece to the worktable of a machine t

Details Apparatus for fixing a workpiece to the worktable of a machine t Apparatus for fixing a workpiece to the worktable of a machine t

1990-06-06

1991-11-19

Watson, Robert C.

Work holders

Work-underlying support

Support mounting means

B23Q 108

Patent

active

050659910

ABSTRACT:
The invention provides an apparatus for fixing a workpiece to be machined by a machine tool to the worktable of the machine tool in an exactly determined positional relationship with reference to a reference point located on the worktable of the machine tool. The apparatus of the invention comprises a workpiece receiving means adapted to removably receive the workpiece to be machined, and first positioning means comprising a first group of positioning apertures provided in the workpiece receiving means, and a first group of positioning studs provided on the worktable of the machining tool, said first group of positioning apertures and said first group of positioning studs cooperating to determine the position of the workpiece receiving means in X- and Y-direction.
Further, there are provided second positioning means comprising a second group of positioning apertures and a second group of positioning studs, said second groups of positioning apertures and positioning studs being located distantly from said first groups of positioning apertures and positioning studs and cooperating with each other. The cooperating second groups of positioning apertures and positioning studs determine the position of the workpiece receiving means either only in X-direction or only in Y-direction, but not simultaneously in both directions.

REFERENCES:
patent: 4586702 (1986-05-01), Chambers
patent: 4610020 (1986-09-01), Fiandra
patent: 4735671 (1988-04-01), Stoffel et al.
patent: 4928939 (1990-05-01), Bell
patent: 4932642 (1990-06-01), Salenbien et al.
patent: 4934680 (1990-06-01), Schneider

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