초록 ▼

A real-time fastener measurement system includes an anvil (10) having a striking surface (16) that engages a fastener as it is upset. Three proximity sensors (20) are disposed at 120°intervals around a striking surface of the anvil. A computer system (110) reads the electronic signals produced by th

A real-time fastener measurement system includes an anvil (10) having a striking surface (16) that engages a fastener as it is upset. Three proximity sensors (20) are disposed at 120°intervals around a striking surface of the anvil. A computer system (110) reads the electronic signals produced by the proximity sensors just after the fastener has been upset and converts the signals to digital values. The computer stores a piecewise linear function that has been predetermined for each sensor and uses the function to convert the digital values of the proximity sensor to fastener head height.

대표청구항 ▼

A system for real-time detection of the height of a fastener head above the surface of a workpiece, comprising: an anvil adapted to be secured in a riveting machine, the anvil including a strike surface to engage a head of a fastener to be installed in the workpiece by the riveting machine, the anvi

A system for real-time detection of the height of a fastener head above the surface of a workpiece, comprising: an anvil adapted to be secured in a riveting machine, the anvil including a strike surface to engage a head of a fastener to be installed in the workpiece by the riveting machine, the anvil further including at least one proximity sensor disposed adjacent to the strike surface of the anvil; a sensor interface circuit coupled to the at least one proximity sensor, the sensor interface circuit producing an output signal indicating the distance between the at least one proximity sensor and a surface of the workpiece; and a computer system for receiving the output signal of the sensor interface circuit and for converting the output signal into an indication of fastener head height.