Rohr Industries, Inc.

Samuel Schneider

John D Beyer

William F Rethwish

A honeycomb core manufacturing machine which includes a mainframe assembly and a transport assembly carried by and translatable along the mainframe assembly. The mainframe assembly comprises vertical and horizontal translatable upper and lower weld electrode assemblies. The transport assembly comprises upper and lower weld wheel electrode assemblies, an upper and lower weld electrode spreader assembly and a corrugated ribbon strip placement mechanism for placing ribbon between the spread apart upper and lower negative weld electrode assemblies with crest and trough of adjacent layers in registry. Sequentially as the transport assembly translates to and fro across the mainframe assembly between discrete weld stations, the upper and lower weld assemblies are spread apart, ribbon is placed between them, they then return to their non-spread apart locations by spring bias holding the corrugated ribbon in a weld position, the upper and lower weld wheel assemblies rotate from their non-weld position to their weld position where they engage and roll across the outer surface of the last placed foil ribbon layer and weld current passes between the weld wheel electrodes and weld electrodes through the adjacent ribbon layers welding them together at their registry, the upper and lower weld wheel assemblies then rotate back to their non-weld position and the same sequence of events is repeated until a sufficient length of core is produced.

Automatic metallic honeycomb core manufacturing machine

A metal working machine for moving a cutting tool through a metal workpiece which includes a spindle carrying a cutting tool therein, a feed drive motor for advancing the spindle, and a rotation drive motor for rotating the spindle. The workpiece is firmly held by a variable force clamp in an operative position to permit the cutting tool to move therethrough. The thrust of the cutting tool is sensed as well as the rotational velocity of the spindle. A data memory contains the optimum thrust load against a predetermined workpiece material for a cutting tool having a predetermined diameter dimension. A data proceser, upon selection of the optimum thrust load for the tool to be used and the particular workpiece, is coupled to the rotational velocity sensor and provides an output to the feed motor, the rotational drive motor, and the clamp to rotate and advance the cutting tool into contact with the workpiece at the predetermined optimum thrust load and to maintain the clamping force in excess of the predetermined thrust load. In order to maintain the thrust load constant, the feed and the speed of the spindle are sampled intermittently, with the feed being sampled more often than the speed.

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San Diego, CA, United States of America

Samuel Schneider