ELECTRONIC SYSTEM FOR VERIFYING THE PROPER FUNCTIONING OF INDUSTRIAL SCREWDRIVERS

A system for verifying the proper functioning of industrial screwdrivers placed on a test bench. Said bench comprises a plurality of hydraulic brakes (Fl-Fn), with which the screwdriver is associated, suitably controlled by a hydraulic circuit comprising a pump (P), which withdraws the fluid from a reservoir (T) and provides it to a pressure regulating valve (VP), which in turn provides it to the brakes. Each brake is provided with measuring transducers (TR) connected to an electronic driver board (SP), which also controls such regulating valve (VP). A hydraulic distributor (D) is present between such brakes (Fl-Fn) and the regulating valve (VP), such hydraulic distributor comprising solenoid valves (El- En) able to select, operate and control the hydraulic pressure of each brake to which it is selectively connected. A computer (U) communicates with such board and comprises a suitable driving program stored thereon capable of progressively increasing the braking capacity of the brakes according to a preset braking torque/brake rotation angle curve.