Real-time fastener measurement system

Details Real-time fastener measurement system Real-time fastener measurement system

1995-11-29

1997-10-07

Smith, Scott A.

Elongated-member-driving apparatus

With means to move or guide member into driving position

With means to assure correct orientation of member

227 4, 227 51, 227156, 227 61, 173 21, 2924353, 2952506, 358101, 324242, B21J 1528

Patent

active

056738390

ABSTRACT:
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.degree. 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.

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