BVCM hold down apparatus to prevent pivot bearing damage at TVCM installation in disk drive assembly

摘要

A device for preventing damage to a pivot bearing assembly during manufacture of a hard disk drive includes a first bottom voice coil motor (VCM) plate hold-down clamp configured to clamp down on a first exposed surface of a bottom VCM plate of the hard disk drive and a second bottom VCM plate hold-down clamp configured to clamp down on a second exposed surface of the bottom VCM plate. The first and second bottom VCM plate hold-down clamps are configured to prevent damage to the pivot bearing assembly during installation of the top VCM plate over the bottom VCM plate by clamping down on the bottom VCM plate with a force that is at least sufficient to prevent the bottom VCM plate from moving when the top VCM plate is installed over the bottom VCM plate.

主权项

1. An assembly nest for assembly of a hard disk drive, comprising:
a first bottom voice coil motor (VCM) hold-down clamping assembly configured to:
rotate in a first plane parallel to a base of the hard disk drive;move in a second plane perpendicular to the base of the hard disk drive; andclamp down on at least one first exposed surface of a bottom VCM plate of the hard disk drive; a top VCM plate gripper assembly that is separate from the first bottom VCM hold-down clamping assembly and that is configured to place a top VCM plate of the hard disk drive over the bottom VCM plate, and wherein the first bottom VCM hold-down clamping assembly is independently rotatable in the first plane and movable in the second plane with respect to the top VCM plate gripper assembly and wherein the top VCM plate gripper assembly is independently movable with respect to the first bottom VCM hold-down clamping assembly.