| 摘要 |
The operating head for automatic machine tools includes a first support 3 mounted to rotate around a first axis C, on a support that moves along a set of three Cartesian axes. A body 7 is mounted on the support 3 such that it can rotate around a second axis A inclined by 45 degrees to the first axis C. An interchangeable chuck unit 11 is removeably mounted on the body 7 with the axis of rotation inclined at a 45 degree angle to the second axis A. The chuck unit is either a mechanical power chuck or a motorized chuck. A power train 12, 13, 14 transmits motion from a motor to a bevel gear 15 which engages a corresponding toothed bevel gear 16 on the chuck spindle. A pair of rings with front toothing 18 is mounted on the body 7 and the chuck unit 11 for precise positioning. Hydraulic and electrical connections (22, 23, figure 2) are on the facing surfaces of the body and the chuck unit. The tool may be used for machining very strong materials such as titanium and steel or to perform medium-speed roughing operations with high chip generation. |
