Positioning assembly and method
AssigneePratt & Whitney Canada Corp.
InventorsYuwen Li, Amr Elfizy
Life of this patent
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Abstract
A method for positioning a rotary part on a machining fixture adapted to hold the rotary part for a machining operation is described. The machining fixture has a center axis and a diaphragm with engaging segments affixed thereto and extending away therefrom. The method includes mounting the rotary part on the machining fixture concentrically about the center axis and adjacent to the engaging segments, and then applying an axial force in a direction substantially parallel to the center axis against the diaphragm. This elastically deforms the diaphragm and radially displaces the contact members of the engaging segments into frictional engagement with a circumferential surface of the rotary part.
Claims8
A method for positioning a rotary part on a machining fixture adapted to hold the rotary part for a machining operation, the machining fixture having a center axis and a diaphragm with engaging segments affixed thereto and extending away therefrom, the method comprising:
- mounting the rotary part on the machining fixture concentrically about the center axis and adjacent to the engaging segments;
- and
- applying an axial force in a direction substantially parallel to the center axis against the diaphragm and at a location on the diaphragm spaced apart from the engaging segments to elastically deform the diaphragm and radially displace contact members of the engaging segments into frictional engagement with a circumferential surface of the rotary part.
Dependencies are inferred from the claim text.