Setting tool, especially a riveting tool has a piezoelectric sensor for measuring the tensile force applied to the rivet shaft so that the force can be accurately measured without a power supply to the sensor

摘要

Setting tool, especially a riveting tool has a head piece (2) for receiving a rivet (20), a device for gripping or pulling the rivet shaft and a tensioning device connected to the gripping device. The tensioning device incorporates a piezoelectric sensor for measuring the applied tensile stress. An Independent claim is made for a method for controlling a setting, especially a riveting, process in which the tensile force is measured during its application so that it can be adjusted if necessary. The invention also relates to a corresponding head piece with a piezoelectric sensor for measuring the applied tensile force.