Tightening automation Electrical industry, electronics Customer need: Semi-automatic assembly of condenser batteries for power factor-correction systems with M6x8 screws at about 7 Nm torque. The screws, extremely specific due the 0.8 ratio between total length and head diameter, cannot be processed with the standard screw feeding systems. The solution: Fiam designed and manufactured an autofeed screwdriver with transducerized brushless DC electric motor, torque/angle control, to be used by the operator on the work bench. The most interesting innovations introduced in order to handle such particular screws are: “T” shaped blowing hose mirroring screw design: Tightening head receiving the screw from the side rather than axially as normally happens. What above described allows feeding screws without jamming.

Electrical industry, electronics The tightening module is composed of: • Straight grip with lever start to ease start by the operator • Brushless DC electric motor MCB line with torque/angle control • Forward bit stroke device with positive screw BC CARTESIAN ARM: installed on the work bench, in addition to relieving screwdriver weight, allows keeping the tool engagement to keep screw always visible to the operator, thus facilitating centering while preventing screw retraction into the jaw set • jaw set with a special screw retaining solution which holds the screw from the head rather than the...