| 摘要 |
<p>A machine and method for continuous thread tapping of threads in fasteners such as nut blanks or the like having a fastener blank advancement mechanism incorporated into a fastener blank holding and guidance assembly. A continuous stream of fastener blanks are fed into and securely held and advanced onto a tap (6) by a modular worm jaw assembly (15). Fastener blanks are continuously fed into the worm jaw assembly (15) so that a continuous progression of blanks are advanced onto the tap (6) by forward turning of worms (17) rotating within laterally opposed jaws (19) which hold the fastener blanks and prevent them from rotating as they are advanced over the rotating tap. Once the nut blank is advanced over the tap, it is pushed by a progression of successive nuts along the length of the shank (7) which supports the tap to the end of the shank opposite the tap die from which the tapped nuts drop into a receptacle (22).</p> |
