Patent Number: 6,305,257

Title: Multi-spindle CNC lathe

Abstract: A multi-spindle CNC lathe comprises a frame assembly mounted on a base and including spaced apart, rigidly interconnected subframes defining spaced, parallel alignment surfaces. A plurality of spindles each includes a collet for rotating a stock about a spindle axis. An indexing mechanism positions the spindles in alignment with stations located at equally spaced intervals about a central axis. Internal tool slides mounted on the alignment surface of one of the subframes each comprise a servo mechanism for advancing and retracting a cutting tool along a work station axis. External tool slides mounted on the alignment surface of the other subframe each comprise a first servo mechanism for advancing and retracting a cutting tool toward and away from the work station axis and a second servo mechanism for selectively moving the cutting tool back and forth along a path extending parallel to the work station axis.

Inventors: Crudgington; John G. (Keller, TX), Crudgington; Graham J. (Keller, TX)

Assignee: Crudgington Machine Tools, Inc.

International Classification: B23Q 39/00 (20060101); B23Q 39/04 (20060101); B23B 29/04 (20060101); B23B 29/00 (20060101); B23B 31/20 (20060101); B23B 001/00 (); B23B 009/00 ()

Expiration Date: 10/23/2018