Pilger mill mandrel measuring device

Details Pilger mill mandrel measuring device Pilger mill mandrel measuring device

1993-05-03

1996-10-08

Voeltz, Emanuel T.

Boots, shoes, and leggings

36447408, 36447437, 356376, 356384, 382141, G01B 1108, G01B 1124

Patent

active

055638082

ABSTRACT:
A method and an apparatus for measuring a tapered cylindrical object, such as a mandrel. The apparatus employs a linear positioning table assembly with a slide mounting for a laser micrometer, an axial position stepper motor for moving the laser micrometer stepwise along the axial length of the mandrel, and an angular position stepper motor for stepwise rotation of the object. The laser micrometer measures a cross-sectional diameter of the mandrel at a plurality of angular positions of the mandrel for each one of a plurality of axial positions along the length of the mandrel. The measurements taken at a plurality of angular positions constitute a circumference profile at that axial position. The circumference profiles at a plurality of axial positions constitute the contour profile of the mandrel. The acquired data are compared to desired mandrel contour profile data.

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