| 摘要 |
The bar-pusher actuation device for bar feeders applied to machine tools includes a linear actuator composed of a chain (7) with which the bar-pusher (5) is associated and which is closed around a pair of fixed pinions (8,9) and a pair of gearwheels (13,14) which are movable with respect to the pinions. The pair of gearwheels is mounted on a slider (15) which is slidable parallel to the direction of advancement of the bar. The slider is actuated by a jack (23) adapted to perform a reciprocating stroke which substantially corresponds to the length of the portion of bar (3) to be machined. |
