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US 5,095,785 AGranted
Self actuating generating tool
AssigneeGTE Valenite Corporation
InventorKenneth G. Noggle
Life of this patent
Estimating the term…
Abstract
A machine tool that includes a rotary spindle having a radially movable cutter element. An axially movable drawbar within the spindle is used to move the cutter element to its retracted or extended position. A harmonic drive unit is carried on the spindle for imparting rotary movement to a cam element that has a driving connection with the drawbar. The harmonic drive unit can be controlled through a remotely-operated brake that is adapted to be selectively engaged with a reaction member that forms part of the harmonic drive unit.
Claims8
A machine tool comprising a rotary spindle;
- radially movable cutter means carried on said spindle;
- an axially slidable drawbar located within said spindle;
- means interconnecting the drawbar and cutter means whereby axial movement of the drawbar within the spindle causes the cutter means to be radially moved into or out from the spindle;
- a normally inactive harmonic drive means carried on said spindle, said harmonic drive means comprising an annular input means, an annular reaction member, and an annular output means;
- a releaseable brake means movable toward or away from said reaction member;
- and a cam connection between said output means and said drawbar whereby said output means drives the drawbar axially for retraction of the cutter means.
3 more elements
Dependencies are inferred from the claim text.