Pilger mill mandrel measuring device

Details Pilger mill mandrel measuring device Pilger mill mandrel measuring device

G - Physics

01

B

G01B 11/24 (2006.01) G01B 11/08 (2006.01) B21B 21/00 (2006.01) B21B 25/00 (2006.01)

Patent

CA 2122383

PILGER MILL MANDREL MEASURING DEVICE Abstract of the Disclosure 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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