Boring tool for producing undercuts in holes
AssigneeHawera Probst GmbH & Co.
InventorsWolfgang Peetz, Siegfried Klaissle, Bernhard Moser, Norbert Muller
Life of this patent
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Abstract
A boring tool for producing undercuts in preformed holes. The boring tool has a cutting element which is provided at one end of a driving shaft. In order to produce the undercut, the driving shaft can be deflected at right angles to the axis thereof via a deflection mechanism. The deflection mechanism is accommodated in the boring tool, and is provided with a longitudinally displaceable deflection rod for positively deflecting the driving shaft. In the deflected position, the driving shaft is driven by a rotary drive which is separate from the turning drive. As a result, the undercuts can be very precisely produced.
Claims20
A boring tool for producing undercuts in holes, especially in preformed holes;
- the boring tool having the improvement therewith which tool comprises:
- a resiliently bendable driving shaft having a longitudinal axis and two ends, one of which is adapted to be connected to a turning drive for rotation about the longitudinal axis;
- a cutting element of the boring tool located at the other end of said driving shaft;
- a housing;
- a deflection mechanism which extends shiftable in a guided manner as to an outwardly open location and at least in part in accommodated in said housing;
- said deflection mechanism including an axially displaceable deflection element for deflecting said resiliently bendable driving shaft at substantially right angles to a longitudinal axis thereof, at least in the vicinity of said cutting element;
- said deflection element further being resiliently bendable as adapted to effect positive wedging adjustment of a deflected position of said driving shaft;
- and
- a rotary drive which is separate from said turning drive, and to which said resiliently bendable driving shaft is drivingly connected;
- said driving shaft, during its rotation via said turning drive, also being adapted to be revolved additionally by said rotary drive superimposed thereon, when in a deflected position, specifically to effect said production of an undercut simultaneously therewith.
Dependencies are inferred from the claim text.