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Manufacturing method of disc device suspension and suspension assembly used in said manufacturing method

A manufacturing method and a technology of a magnetic disk device, applied in the direction of the integrated arm assembly, the structure of the arm parts, the configuration/installation of the recording head, etc., which can solve the problems of poor positional accuracy and inability to fit smoothly

Active Publication Date: 2021-08-27
NHK SPRING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the material of the flexure is stainless steel, when fitting the fitting part to the positioning part, the positioning part of the dome-shaped convex part, which is also made of stainless steel, may not be aligned with the positioning part, and the fitting may not be smooth.
The above is not preferable for improving the positional accuracy of the flexure relative to the load beam

Method used

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  • Manufacturing method of disc device suspension and suspension assembly used in said manufacturing method
  • Manufacturing method of disc device suspension and suspension assembly used in said manufacturing method
  • Manufacturing method of disc device suspension and suspension assembly used in said manufacturing method

Examples

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no. 1 Embodiment

[0028] In this embodiment, the suspension for a magnetic disk device is manufactured by a load beam frame having a load beam and a flexure frame having a flexure. The structures applicable to the load beam frame, the flexure frame, and the suspension assembly overlapping the load beam frame and the flexure frame are illustrated below.

[0029] figure 1 It is a schematic plan view of the load beam frame 10 related to the first embodiment. The load beam frame 10 includes a load beam 11 and a first frame 12 . The load beam frame 10 is formed of a metal plate (leaf spring) by etching or pressing. The metal plate is formed of a metal material such as stainless steel, for example.

[0030] The load beam 11 extends along the axis X1. A dimple 14 is formed on the axis X1 of the load beam 11 . The first frame 12 is integrally connected with the load beam 11 . The first frame 12 is separated from the load beam 11 during the suspension manufacturing process. figure 1 The dotted li...

no. 2 Embodiment

[0062] The second embodiment will be described below. Components that are the same as those in the first embodiment are denoted by the same symbols, and explanations thereof are appropriately omitted. Figure 6 It is a schematic side view of the suspension unit 60 according to the second embodiment. Figure 7 is along Figure 6A brief partial cross-sectional view of the suspension assembly 60 at line C-C in FIG. In this embodiment, the convex portion 13 has an opening 13b. This point is different from the first embodiment. The opening 13 b may be formed at the center of the convex portion 13 or at a position deviated from the center of the convex portion 13 .

[0063] The load beam frame 10 is disposed on the base 70 . The base 70 has a pin P thereon, and the pin P is inserted into the opening 13b. exist Figure 7 , a gap is formed between the opening 13b and the pin P. By overlapping the load beam frame 10 along the pin P with the flexure frame 20 , the suspension ass...

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Abstract

A manufacturing method of a disc device suspension includes forming a load beam blank including the load beam and a first frame continuous to the load beam, forming a flexure blank including the flexure and a second frame continuous to the flexure, forming a convex in the first frame, forming an opening in the second frame in a position corresponding to the convex to receive the convex, overlapping the load beam blank with the flexure blank to insert the convex into the opening, fixing the flexure to the load beam, and separating the load beam from the first frame and the flexure from the second frame after the fixing.

Description

[0001] Cross application (related application reference) [0002] This application is based on a prior application (patent application 2020-020749) filed in Japan on February 10, 2020, and enjoys priority to all matters described in the prior application. technical field [0003] The present invention relates to a manufacturing method of a suspension for a magnetic disk device such as a hard disk drive device and a suspension assembly used in the manufacturing method. Background technique [0004] A hard disk drive (HDD) used in an information processing device such as a personal computer includes a magnetic disk that rotates around a spindle, a carriage that rotates around a pivot, and the like. The carriage has an actuator arm pivoted in the track width direction of the magnetic disk by a positioning motor such as a voice coil motor. [0005] The magnetic disk device is mounted on the actuator arm with a suspension (hereinafter simply referred to as a suspension). The su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B21/21
CPCG11B21/21G11B5/4833G11B5/484
Inventor 井本耕一堤邦博杉山和弘松泽正记
Owner NHK SPRING CO LTD
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