Clamping apparatus

B - Operations – Transporting – 25 – B

Patent

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Details

B25B 23/10 (2006.01) B23H 7/26 (2006.01) B25B 5/14 (2006.01) F16B 37/08 (2006.01)

Patent

CA 2382906

A clamping apparatus for fixing and non-rotatably clamping threaded shafts, particularly threaded shafts used as electrodes for eroding threads, comprises a hollow cylindrical shaft with a clamping sleeve member located at its front end. The clamping sleeve member has a central bore and a rectangular aperture open-ing into that central bore. A rectangular clamping member is slidably received in the aperture and comprises at its front sur-face, facing the central bore, a number of thread convolutions matching the thread convolutions of the shaft to be clamped. For moving the clamping element towards a threaded shaft received in the central bore, a rotating collar is provided, located around the outside of the clamping sleeve member, and having a an inner circular surface with a diametrically gradually enlarging recessed portion into which the clamping element protrudes. By rotating the collar, the clamping element is radially moved toward a threaded shaft inserted into the bore, until the thread convolutions of the clamping element engage the thread convolutions of the shaft in the bore.

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