Screwdriver with automatic screw supply for use in a production environment has a magnetic arrangement for measuring torque, rotation angle, etc. so that additional measurement apparatus is not required

摘要

Automatic screwdriver (10) with automatic screw supply (12) has a holding rod (16) for a screwdriver bit (18). On the bit end the holding rod has a magnetically modified region (22) so that sensors (24) can detect changes in the magnetic field in or near the screw location to measure the torque, rotation angle or screw insertion depth.