Multispindle-automatic turret lathe
AssigneeIndex-Werke Konn.-Ges. Hahn & Tessky
InventorHelmut F. Link
Life of this patent
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Abstract
Multispindle-automatic turret lathe with a spindle support mounted for rotation about a central indexing axis on a headstock and in which are mounted several workspindles, and with a main driving motor for a drive shaft which is adapted to be drivingly coupled with that workspindle which at any given time occupies the working position. Since it is regular custom to provide such main driving motors with electronic control units which not only control acceleration and deceleration of the workspindle which happens to be driven at any given time but which also allow the latter being stopped precisely in a clearly predefined angular position, a separate drive for the spindle support may be dispensed with by coupling the spindle support with the main driving motor for its intermittent indexing rotation movement.
Claims6
A multispindle automatic turret lathe including in combination, a headstock, a spindle support, means mounting said spindle support on said headstock for rotation about a central indexing axis, a plurality of workspindles, means mounting said workspindles on said support for rotation around respective axes which intersect said indexing axis at a common point of intersection, said workspindles being movable into a working position by rotation of the spindle support, a drive shaft having an axis of rotation, means mounting said drive shaft in said headstock for rotation about said drive shaft axis, a main driving motor to rotate said drive shaft, control means to control said motor including angular position control means to adjust said drive shaft to a predetermined position of angular rotation, first coupling means on the drive shaft and workspindles to couple the shaft with a workspindle which is in said working position, said first coupling means being shiftable along said drive shaft axis on a path including said common point of intersection between an engaged position in which the drive shaft is coupled with a work spindle which is in said working position and a disengaged position, means for shifting said first coupling means, second coupling means between said drive shaft and said spindle support to rotate said spindle support about said indexing axis, said first and second coupling means being rigidly interconnected so that said second coupling means is in driving engagement when said first coupling means is in said disengaged position.
Dependencies are inferred from the claim text.