Patent ID: 7228771
Filing Date: 2007-06-12
Classification: B23Q,Y10T

Abstract:
1. A multiple spindle screw machine, comprising: a frame; a spindle supporting head operatively associated with the frame for indexible rotation; a plurality of work-supporting spindles mounted in said spindle supporting head for rotation therewithin and relative thereto about parallel axes radially spaced from and angularly spaced about a spindle drive shaft; a spindle drive, operatively connected to the spindle drive shaft, to effect rotation of the work supporting spindles, and lengths of stock carried thereby, about axes of rotation defined by the work supporting spindles; a side servomotor operatively connected to a side cam shaft to effect rotation of a plurality of side cams independently of the operation of the spindle drive, said side cam shaft extending parallel to the axes of rotation defined by the working spindles; side cams mounted on said side cam shaft, for rotation thereby and to cause operation of side machining tools thereby machining the lengths of stock; an end servomotor operatively connected to an end cam shaft and extending perpendicularly to the axes of rotation defined by the working spindles; at least one end cam mounted on the end cam shaft for rotation thereof independently of the operation of the spindle drive, and to cause operation of an end machining apparatus, thereby machining the lengths of stock carried by the work supporting spindles; and a multi-axis controller for controlling the operation of the spindle drive, the side servomotor and the end servomotor.