Screwing device for measuring arrangement

Details Screwing device for measuring arrangement Screwing device for measuring arrangement

1996-02-22

1997-12-23

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Machine

81429, 73761, 254 29A, B25B 2902

Patent

active

056997035

ABSTRACT:
A screwing device provides an ultrasound-controlled tensioning of a screw connection. A measurement of the pre-tensioning force of the screw connection can be performed without complete fitting of a screwing tool on the screw connection. The screwing tool for this purpose is displaceable axially within a certain limit relative to the rotary drive shaft. The screwing tool is pre-tensioned by a spring in direction toward the screw connection, so that a contact pin arranged centrally inside the screwing tool for electrical contacting of a vibration body is arranged always inside the screwing tool to be protected.

REFERENCES:
patent: 3969960 (1976-07-01), Pagano
patent: 4899591 (1990-02-01), Kibblewhite
patent: 5226327 (1993-07-01), Fassina
patent: 5442327 (1995-08-01), Ringer

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