IP Library Granted Patent US 9,275,677
Granted Patent B1
US 9,275,677 · App. 14/512,701 · Granted Mar 1, 2016

Hard disk drive top cover removal

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Quick Facts
Patent No.
US 9,275,677
App. No.
14/512,701
Granted
Mar 1, 2016
Kind
B1
Abstract

A hard disk drive (HDD) top cover removal tool includes a nest assembly, a clamp, a guide plate, and a purge and vacuum assembly (PAVA). The nest assembly secures an HDD and rotates it from a first to a second position. The clamp presses against a top cover of the HDD such that the top cover maintains contact with a hard drive body of the HDD. A hole defined in the guide plate is aligned with a screw location of the top cover and the hard drive body, and receives a screw driver for removing a screw fastening the top cover to the hard drive body. The PAVA purges and evacuates particles from the screw location of the top cover and the hard drive body of the HDD in the second position. The clamp releases the top cover. The PAVA removes the released top cover from the hard drive body.

Claims (23)

1. A method for removing a top cover of a hard disk drive, the method comprising:

securing a hard disk drive in a nest assembly;

pressing a clamp coupled to the nest assembly against a top cover of the secured hard disk drive such that the top cover maintains contact with a hard drive body of the hard disk drive;

removing a screw fastening the top cover to the hard drive body at a screw location of the top cover and the hard drive body;

rotating the secured hard disk drive from a first position to a second position;

purging and evacuating, with a purge and vacuum assembly, particles from the screw location of the pressed top cover and the hard drive body of the hard disk drive in the second position;

releasing the top cover; and

removing, with the purge and vacuum assembly, the released top cover from the hard drive body.

2. The method of claim 1 , wherein the purge and vacuum assembly is slidably mounted on the main body, and wherein purging and evacuating the particles comprises:

sliding the purge and vacuum assembly toward the nest assembly to engage the top cover;

encapsulating, with a vacuum tube of the purge and vacuum assembly, the screw location when the purge and vacuum assembly engages the top cover;

applying, with a vacuum source, a vacuum to the vacuum tube;

applying, with a compressed gas source, pulses of compressed gas to the screw location via an air purge nozzle extending into the vacuum tube to dislodge the particles, wherein the vacuum is applied to evacuate the particles from the vacuum tube;

gripping, with a gripper of the purge and vacuum assembly, the top cover; and

sliding the purge and vacuum assembly away from the nest assembly to remove the gripped top cover from the hard drive body.

3. The method of claim 2 , wherein gripping the top cover comprises applying suction, with a suction cup, to the top cover.

4. The method of claim 1 , wherein removing the screw comprises:

sliding a guide plate toward the nest assembly to be positioned with respect to the pressed top cover of the hard disk drive in the first position such that a hole defined in the guide plate is aligned with the screw location; and

receiving a screw driver through the hole for removing the screw with the screw driver.

5. The method of claim 1 , wherein the nest assembly rotates the secured hard disk drive up to 90 degrees from the first position to the second position.

6. The method of claim 1 , further comprising engaging, with a datum feature of the nest assembly, the hard disk drive for positioning the hard disk drive in the nest assembly.

7. The method of claim 1 , wherein pressing the clamp against the top cover comprises moving, with an actuator coupled to a bracket of the clamp, the bracket from a first configuration to a second configuration, wherein the bracket is not engaged with the top cover in the first configuration, and wherein the bracket pressed against the top cover in the second configuration.

8. The method of claim 7 , wherein releasing the top cover comprises moving, with the actuator, the bracket from the second configuration to the first configuration when the hard disk drive is in the second position.

Assignments (8)
PATENT COLLATERAL AGREEMENT - DDTL LOAN AGREEMENT Recorded Aug 21, 2023
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 067045/0156 →
PATENT COLLATERAL AGREEMENT - A&R LOAN AGREEMENT Recorded Aug 21, 2023
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 064715/0001 →
RELEASE OF SECURITY INTEREST AT REEL 038744 FRAME 0481 Recorded Feb 8, 2022
From: JPMORGAN CHASE BANK, N.A.
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 058982/0556 →
RELEASE OF SECURITY INTEREST Recorded Mar 5, 2018
From: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 045501/0714 →
SECURITY AGREEMENT Recorded May 17, 2016
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 038722/0229 →
SECURITY AGREEMENT Recorded May 17, 2016
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 038744/0281 →
SECURITY AGREEMENT Recorded May 17, 2016
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 038744/0481 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 22, 2015
From: FERRE, ANDRES G.; PHUAH, SIE CHEANG; HASTAMA, LIE DHANI; LIM, MOOI HOON
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 037355/0384 →