TURRETHEAD WITH DRIVEN TOOL

The turret head (1) has a rotatably mounted turret plate (3) and a spindle (5) rotatably and pivotably mounted inside this turret plate. Inside the turret plate, the spindle (5) is provided with ring-gear segments (14) which are symmetric to the spindle axis and are connected via planetary pinions (15) to ring gears (16) which are rigidly coupled to one another by means of a pinion shaft and are rotatably mounted in the turret plate (3). This symmetric arrangement of ring-gear segments, planetary pinions and ring gears is provided in order to prevent the action of force on one side on the spindle and thus prevent wobbling movements of the same. The gear ring (16) can be locked relative to the turret housing (2) by means of an indexing pin (17) so that, when the turret plate (3) rotates, the planetary pinions (15) move on rolling contact and as a result pivot the spindle (5) on account of their meshing with the gear segments (14), so that this spindle (5) is displaced parallel to itself during pivoting of the turret plate. The axial displacement of the tool (11) held by the spindle, occurring as a result of the displacement of the spindle, is compensated for by a displacement of the slide carrying the turret head.