Automatic turret lathe
AssigneeUniversal Automatic Corporation
InventorsAdolph V. Klancnik, Kenneth A. Klancnik
Life of this patent
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Abstract
An automatic turret lathe in which sequences are manually programmed for automatic control (both turret and cross slide) as an incident to setting up the machine, requiring neither tape nor card programs but rather the manual effort of the machinist; the lathe also incorporates a unique clutch and bearing support for the rotary turret, and the turret has a positive lock for accurately holding the index position; all essential functions and modes including feed rates and r.p.m. are visually displayed.
Claims4
In a turret lathe where a turret is rotatably supported for indexing movement to one of several tool positions on the head of a turret slide having both tool advance and tool return motion, and wherein the turret is carried by a rotatable turret index shaft supported by a bearing inside said head on an axis tilted from the vertical:
- an indexing ratchet fixed to one end of said shaft to turn the shaft when the ratchet is actuated;
- said bearing comprising a pair of tapered bearing races respectively on said head and said shaft and capturing therebetween a set of tapered roller bearings;
- one of said tapered bearing races having an end engaged with said ratchet;
- screw means at the other end of said index shaft for adjusting said shaft axially to cause said ratchet to engage said one of the bearing races with more or less force to apply a selected pre-load to said bearing;
- and a thrust bearing interposed between the opposing surfaces of the turret and head.
Dependencies are inferred from the claim text.