Gear cutting – milling – or planing – Milling – Including means to adustably position cutter
Patent
1986-01-13
1988-10-18
Bilinsky, Z. R.
Gear cutting, milling, or planing
Milling
Including means to adustably position cutter
408 13, 409216, B23B 3914, B23C 112
Patent
active
047783176
ABSTRACT:
A tactile sensing tool positioning system for positioning a tool normal to the surface of a curved workpiece is disclosed. The tool positioning system of the present invention includes a steel frame for rigidly supporting a cutting tool having a longitudinal cutting implement, such as a drill bit or countersink bit. The steel frame includes a steel collar which is normal to the axis of the cutting implement and which supports a deformable ring of polyurethane or other resilient material. A plurality of aluminum cylinder positioning sensors are imbedded into the steel collar and surrounded by the deformable ring with one end of each aluminum cylinder positioning sensor contiguous with the exposed surface of the deformable ring. The axial loading experienced by each aluminum cylinder positioning sensor is measured by an associated strain gauge, and a quadrature circuit is then utilized to balance the forces on the aluminum cylinder positioning sensors and normalize the longitudinal cutting implement. In an alternate embodiment of the present invention two groups of aluminum cylinder positioning sensors are disposed in two separate planes both of which are normal to the axis of the cutting implement. By balancing the forces to determine arcs of equal loading, the longitudinal cutting implement with the surface of a highly curved workpiece may be calculated.
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Button Richard D.
Earle, III George A.
Wheetley Michael J.
Bilinsky Z. R.
Cate J. M.
LTV Aerospace & Defense Company
Sadacca S. S.
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