| 摘要 |
A carriage drive system for a metal working machine wherein the carriage supports the metal working tool. The carriage drive comprises a worm gear rotatably engaged with a rack arrangement, driven by a motor and gear box on the carriage. The rack arrangement comprises a pair of rack sections opposed to one another along the sides of the worm gear. The carriage drive is pivotably supported on the carriage by a pivot pin which permits slight rocking and self centering motion in the carriage drive as it propels the carriage on its ways. |
