초록 ▼

A process for seating a tight-fitting headed fastener in a hole in a workpiece so that the head of the fastener contacts the surface of the workpiece. The process includes inserting a distal end of the fastener, opposite its headed end, into the hole so that the distal end is tightly wedged into the

A process for seating a tight-fitting headed fastener in a hole in a workpiece so that the head of the fastener contacts the surface of the workpiece. The process includes inserting a distal end of the fastener, opposite its headed end, into the hole so that the distal end is tightly wedged into the hole and the headed end of the fastener is spaced from the workpiece surface. A driver of an electromagnetic impulse actuator is extended into contact with the fastener head, and the position of the driver when it is in contact with the fastener head is sensed and recorded to determine how far the fastener must be driven into the hole to seat the fastener head against the workpiece surface. A desired off-set distance of the driver from the fastener head is calculated which will result in seating of the fastener when the electromagnet impulse actuator is actuated, but will not cause excessive impact of the fastener head with the workpiece surface. The driver is withdrawn to the desired offset distance, and the electromagnetic impulse actuator is actuated to propel the driver into contact with the fastener head to seat the fastener against the workpiece surface.

대표청구항 ▼

[ I claim:] [1.] A process for seating a tight-fitting headed fastener in a hole in a workpiece so that the head of said fastener contacts the surface of said workpiece, said process comprising the steps of:inserting a distal end of said fastener, opposite the headed end thereof, into said hole so t

[ I claim:] [1.] A process for seating a tight-fitting headed fastener in a hole in a workpiece so that the head of said fastener contacts the surface of said workpiece, said process comprising the steps of:inserting a distal end of said fastener, opposite the headed end thereof, into said hole so that said distal end is tightly wedged into said hole and said headed end of said fastener is spaced from said workpiece surface;extending a driver of an electromagnetic impulse actuator into contact with said fastener head;sensing and recording the position of said driver when said driver is in contact with said fastener head to determine how far said fastener must be driven into said hole to seat said fastener head against said workpiece surface;calculating a desired off-set distance of said driver from said fastener head which will result in seating of said fastener when said electromagnet impulse actuator is actuated, but will not cause excessive impact of said fastener head with said workpiece surface;withdrawing said driver to said desired offset distance away from the recorded position of said driver; andactuating said electromagnetic impulse actuator to propel said driver into contact with said fastener head to seat said fastener against said workpiece surface.