The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 1984
Filed:
Jul. 26, 1982
Eugene C Bair, Holland, MI (US);
General Electric Company, Fort Wayne, IN (US);
Abstract
A method and apparatus for very accurately aligning a stack of loose laminations in the manufacture of a stator core for an electric motor or other dynamoelectric machine. The stack of loose laminations is supported on a pallet having a very accurately machined upper surface which is perpendicular to the desired centerline of the rotor accommodating bore. The pallet and lamination stack are moved into the alignment station and the pallet is accurately centered and the reference surface oriented perpendicular to the centerline by means of a tapered pin which acts against a tapered surface on the underneath side of the pallet. An arbor is inserted through the rotor accommodating bore of the stack, and engages a spherical head of the pin lying within the reference plane defined by the reference surface of the pallet, and the opposite end of the arbor is located by means of a second pin so that it is perpendicular to the reference plane. The mounting bolts are then threaded into the pallet, the upper pin releases the top of the arbor so that it is free to rotate about the spherical head of the lower pin, and any misalignment of the bore is measured by sensing the displacement of the upper portion of the arbor.