The disclosed embodiments are directed to an improved automatic screw machine employing a first servomotor connected to cause rotation of a first set of tooling cams independently of the operation of a spindle drive, and a second servomotor to cause rotation of a second set of cams independently of the...http://www.google.fr/patents/US7228771?utm_source=gb-gplus-shareBrevet US7228771 - Automatic screw machine with multi-axis drive control
Automatic screw machine with multi-axis drive control
