Combined precision boring and burnishing tool
AssigneeWilhelm Hegenscheidt GmbH
InventorsNis-Friedrich Ewald, Hans-Georg Augustin
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Abstract
A combined tool for precision boring and burnishing a tubular workpiece includes a bore head and a burnishing head which are advanced by a feed tube into the interior of the tubular workpiece while the latter is rotated about its axis. In order to reduce the stresses on the three above-mentioned elements and to avoid markings on the finished surface, two of the three elements are connected by a coupling, which while transmitting torque between the two connected elements, permits limited deviations of the axes thereof.
Claims9
A combined tool for precision boring and burnishing of a tubular workpiece comprising, in combination, bore head means;
- burnishing head means arranged rearwardly of the bore head means;
- feed tube means for feeding said bore head means and said burnishing head means into a workpiece to be machined;
- first connection means for rigidly connecting two of the three first-mentioned means substantially aligned along a common axis;
- and second connection means for transmitting a moment to the third of the three first-mentioned means from at least one of the two other means while permitting limited deviation of said third means relative to said common axis.
Dependencies are inferred from the claim text.