Installation testing method of small hard-disk voice coil motor upper cover

Abstract

A hard disk manufacture method for fixing the voice coil motor lower cover to the hard disk basement, the steps are: parking the hard disk basement in the flute of the magnetic barking plate; at the corresponding fitting location, agglutinate the felted spots symmetrically with the hard disk lower cover by the decentralization mode; drying the agglomerant. According to the invention, spot smearing bond that can control the fixing precision of the voice coil motor lower cover efficiency, ensure the fixing precision of the voice coil motor during the fixing process by setup the powerful permanent magnet in the flute of the magnetic barking plate. On the other hand, fitting some hard disk synchronously to improve the produce efficiency by setup some flutes in the magnetic barking plate.

Description

technical field [0001] The invention relates to a hard disk manufacturing method, more specifically, the invention relates to a method for installing and testing the lower cover of a small hard disk voice coil motor. Background technique [0002] In the installation process of the lower cover of the hard disk voice coil motor in the past, after the lower cover and the base are generally glued together with an adhesive, even if the installation of the lower cover of the voice coil motor is completed, this often causes two problems: 1. 1. The lower cover of the voice coil motor is not glued firmly. During the mechanical movement of the hard disk, the lower cover of the voice coil motor leaves the base, and the hard disk cannot work normally. 2. After the lower cover of the voice coil motor is bonded, the height of the lower cover of the voice coil motor increases , Exceeding the tolerable height, causing the position of the overall voice coil motor to be too high, causing the ...

AI Technical Summary

Problems solved by technology

[0002] In the installation process of the lower cover of the hard disk voice coil motor in the past, after the lower cover and the base are generally glued together with an adhesive, even if the installation of the lower cover of the voice coil motor is completed, this often causes two problems: 1. 1. The lower cover of the voice coil motor is not glued firmly. During the mechanical movement of the hard disk, the lower cover of the voice coil motor leaves the base, and the hard disk cannot work normally. 2. After the lower cover of the voice coil motor is bonded, the height of the lower cover of the voice coil motor increases , Exceeding the tolerable height, resulting in the position of the overall voice coil motor being too high, causing the hard disk to fail to work normally after production is completed

[0003] For small hard drives, such as but not limited to, 1-inch hard drives, due to the smaller volume and higher installation accuracy requirements of the lower cover of the voice coil motor, the general baking processing method can only guarantee the accuracy of 0.50mm Level, if there is no suitable installation and testing method, it will easily lead to the production of bad products, and even make the hard disk cannot work normally after the production is completed

Images