Working unit for programme-controlled milling and boring machines

摘要

The pivot head (5) includes a cylindrical casing section (40) extending coaxial to the pivot head rotation axis (27) and having a spindle motor (22) secured inside it. The head support (1) includes a casing extension (4) in which the cylindrical casing section is rotatably mounted. The head support can be moved along various coordinate axes and contains a 45 deg. rotation axis extending downwards in the forwards direction. The pivot head is mounted on one of the faces of the head support and is rotatable about the 45 deg. axis via a motor. A spindle head (6) fixed to the pivot head is connected to a spindle (7) extending at an angle of 45 deg. relative to the pivot head rotation axis. The spindle motor extends coaxial to the pivot head rotation axis. An angle gear mechanism (28, 29) for the spindle drive is located inside the pivot head.