Machine tool for several types of machining can be performed and for complex machining of long workpieces.

摘要

The present invention relates to a revolving head for machine - tool comprising a fixed frame and a turret carries - moving tailstock. / p & & p & the revolving head comprises a turret 12 consisting of a first stationary element 21 integral with the frame 11 and a second mobile element 22 can be displaced axially in the direction indicated by the double arrow a and in rotation in the directions indicated by the double - arrow b. for this purpose, a piston 25 is associated with a cap 26 adapted to lift the second element 22. A rotary piston 36 is fixed at one end of the rod 24 carrying the piston 25. This assembly makes it possible to cause said second element 22 in rotation with respect to the first element 21 fixed. A compression spring 28 makes it possible to bring the two elements 22 and 21 in support on the other. / p & & p & this revolving head to the automatic control can be used in machines with a digital control.