Clamping device

Details Clamping device Clamping device

2007-06-19

2007-06-19

Watson, Robert C. (Department: 3723)

Work holders

Work-underlying support

Support mounting means

Reexamination Certificate

active

10523404

ABSTRACT:
An annular plug portion (21) projects from a clamp pallet (2). An annular shuttle member (23) is supported by the plug portion (21) to be movable in the vertical direction. A work pallet (3) is provided with a tapered inner peripheral surface (12) which makes an engagement with a tapered outer peripheral surface (28) of the shuttle member (23). A transmission member (29) is inserted into an upper portion of a cylindrical hole (21a) of the plug portion (21), while a rod (31) is inserted into a lower portion of the cylindrical hole (21a). When the rod (31) is driven downward for clamping, an output portion (36) of the rod (31) moves the work pallet (3) downward through engaging balls (34) to form a transmission gap (G) between a pushing portion (31a) of the upper end of the rod (31) and a pressure receiving portion (29b) of the transmission member (29). When the rod (31) is driven upwards for unclamping, the pushing portion (31a) pushes upwards the work pallet (3) through the transmission member (29).

REFERENCES:
patent: 6527266 (2003-03-01), Yonezawa et al.
patent: 1 078 713 (2001-02-01), None
patent: 1 264 658 (2002-12-01), None
patent: 7-314270 (1995-12-01), None
patent: 8-155770 (1996-06-01), None
patent: 11-333649 (1999-12-01), None

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