Patent ID: 9533355
Date: 2017-01-03
CPC Classifications: B23B,B23Q,F16B,Y10T

Claim:
1. An apparatus for machining pipe ends with at least one centering device for centering on a machining axis extending through the center of the apparatus a tubular workpiece that is either rotated adjacent a stationary tool or is stationary while the tool head orbits when gripped in a machine chuck, wherein the centering device has a body that is laterally open toward the axis and that is provided with at least three angularly spaced and mechanically coupled centering jaws radially displaceable between inner and outer positions for synchronously contacting an outer surface of the workpiece to be machined and thereby centering the tubular workpiece to be machined; and an actuating body is carried on a pivot arm that can pivot about an axis parallel to and offset radially from the machining axis for movement of an open side of the actuating body toward or away from the machining axis of the pipe-end machining apparatus between a centering position with the jaws surrounding the axis and an out-of-use position with the jaws spaced radially outward to one side of the axis.