TORQUE WRENCH AND METHOD FOR CONTROLLED TIGHTENING OF THREADED COUPLINGS USING A TORQUE WRENCH

摘要

A torque wrench for controlled tightening of threaded couplings, comprising a substantially tubular body (2; 20), a grip (3; 30) positioned at a first end (4; 40) of said tubular body (2; 20), a tightening head (5; 50) positioned at a second end (6; 60) of said tubular body (2; 20), a tightening torque setting mechanism positioned inside said tubular body (2; 20), an indicating device (10) for indicating when the tightening torque set has been reached, a recognition device (11; 110) for recognising an element to be tightened and/or elements that are positioned at the element to be tightened, said recognition device (11; 110) being connected to said tubular body (2; 20), preferably at said second end (6; 60), and a control unit (12; 120) connected to said recognition device (11; 110) and designed to associate with the element recognised by said recognition device (11; 110) a tightening torque design value to be set.