Lathe non-circular rotary installation - uses numerically controlled position motors feeding coupling unit for transmission to tool and holder

摘要

Non-circular rotary installation for lathes involves a rotary tool movable in a radial direction to the rotary axis of a rotating workpiece, and dependent upon the latter's rotary angle. - At least two numerically controlled position motors (8, 9) are incorporated. The amount of feed is super-imposed in a coupling unit (13-19) and from there is transmitted to the rotary tool and tool holder. - The coupling unit (13-19) comprises a swivelable ring-shaped component (15) on the circumference of which centrally between pins on either side (14) an adjustment spindle (11) engages. A rotor (19) is fitted to an axial ball bearing (16) in the centre of the ring component (15). the spindle (11) is coupled to the first motor