Patent ID: 9027220
Filing Date: 2015-05-12
Classification: B21J,Y10T

Abstract:
1. A rivet setting machine comprising: a rivet; a nosepiece; a feeder operably supplying the rivet to the nosepiece; a punch linearly moving from a retracted position to an advanced position through the nosepiece; a linear displacement sensor positioned adjacent to the nosepiece directly sensing a location of the punch relative to the nosepiece during setting of the rivet; and a programmable controller controlling actuation of the punch when the punch moves relative to the nosepiece; wherein the linear displacement sensor further comprises a longitudinally elongated magnetic scale component and a magnetic length sensor component, one of the magnetic length sensor and magnetic scale components moving relative to the other when the punch moves relative to the nosepiece, and the magnetic length sensor component detecting a magnetic radiant field and sending a position signal to the programmable controller.