Patent ID: 6061894
Filing Date: 2000-05-16
Classification: H02K,Y10T

Abstract:
A method for assembling a plurality of disc drive motors when using non-outgassing adhesives, said method comprising the steps of:a) providing a plurality of partly assembled disc drive motor subassemblies; said subassemblies having surfaces and sub micron components whose performance and reliability are degradable by use of outgassing type of adhesives;b) preventing degradation of performance and reliability of said surfaces and submicron components by treating said subassemblies with a non-outgassing adhesive;c) compensating for additional adhesive curing time required by said treatment of said subassemblies with said non-outgassing adhesive, as compared to a curing time required by said outgassing type of adhesive, by providing a multi-position preload/cure fixture for facilitating complete assembly manufacture, said fixture comprising: a base piece having a plurality of motor nests, a frame piece having a plurality of retractable shafts, each shaft corresponding to a motor nest of said base piece, each of said shafts having a tensioning means;d) disposing said frame piece on said base piece such that said shafts are in operative combination with the motor nests of said base piece;e) retracting said plurality of shafts;f) placing said plurality of partly assembled motors in said motor nests;g) engaging said shafts to overgram and compress said plurality of partly assembled motor subassemblies;h) maintaining a proper tension on said partly assembled motor subassemblies by using said tensioning means;i) removing said frame piece from said base piece, while maintaining proper tension on said motor subassemblies by said shafts and said tensioning means;j) curing said plurality of properly tensioned motor subassemblies, said subassemblies remaining tensioned by the shafts of said frame piece during curing;k) disposing said frame piece on said base piece;l) retracting said plurality of shafts; andm) removing said plurality of cured subassemblies for further processing into disc drive motors.