Nutplate rotary abrasion tool

Patent metadata

Field	Value
Publication number	US-11148175-B2
Application number	US-201715630990-A
Country	US
Kind code	B2
Filing date	Jun 23, 2017
Priority date	Jun 23, 2017
Publication date	Oct 19, 2021
Grant date	Oct 19, 2021

Abstract

A system includes an abrasion component containing an abrasion pad configured to clean a faying surface of a nutplate and a shaft attached to the abrasion pad and configured to rotate the shaft and the abrasion pad during cleaning of the nutplate, which includes abrading the faying surface with the abrasion pad. The system further includes a base configured to attach to a pressure applicator, and the pressure applicator, which is configured to attach to the base, hold the nutplate such that the faying surface is capable of contacting the abrasion pad during the cleaning of the nutplate, and apply pressure to the nutplate such that the nutplate contacts the abrasion pad during the cleaning of the nutplate. Furthermore, the abrasion component is configured to rotate the abrasion pad within at least one of the base and the pressure applicator during the cleaning of the nutplate.

First claim

What is claimed is:

1. A system, comprising:
an abrasion component, comprising:
an abrasion pad configured to clean a faying surface of a nutplate; and
a shaft attached to the abrasion pad and configured to rotate the abrasion pad during cleaning of the nutplate, wherein cleaning the nutplate comprises abrading the faying surface with the abrasion pad;

a base comprising one or more first grooves, the base configured to attach to a pressure applicator; and
the pressure applicator, the pressure applicator comprising:
a housing comprising one or more externally located first protrusions and one or more internally located second grooves; and
a nutplate holder comprising one or more externally located second protrusions, wherein the one or more second grooves and the one or more second protrusions are configured to permit the nutplate holder to slide at least partially within the housing and to apply pressure to the nutplate such that the faying surface contacts the abrasion pad during the cleaning of the nutplate;
wherein the abrasion component is configured to rotate the abrasion pad within at least one of the base and the pressure applicator during the cleaning of the nutplate; and
wherein the one or more first grooves of the base and the one or more first protrusions of the pressure applicator are configured to permit the pressure applicator to at least partially slide into the base and at least partially rotate within the base, thereby securely locking the nutplate between the pressure applicator and the base.

2. The system of claim 1 , wherein each of the housing and the nutplate holder of the pressure applicator comprises an opening configured to accept a protrusion attached to the nutplate during the cleaning of the nutplate.

3. The system of claim 1 , wherein the abrasion pad and the shaft each comprise an opening configured to accept a protrusion attached to the nutplate during the cleaning of the nutplate.

4. The system of claim 1 , wherein the abrasion pad is detachable from the shaft.

5. The system of claim 1 , wherein the pressure applicator further comprises a spring configured to apply pressure to the nutplate holder during the cleaning of the nutplate.

6. The system of claim 1 , wherein the base comprises:
a platform configured to attach to the pressure applicator; and
a bearing configured to contact the shaft during the cleaning of the nutplate.

7. The system of claim 6 , wherein the base further comprises a washer configured to secure the bearing between the washer and the platform.

8. The system of claim 1 , wherein the nutplate holder further comprises a rectilinear depression configured to seat a portion of the nutplate such that faying surface of the nutplate can be abraded by the abrasion pad.

9. A system, comprising:
an abrasion pad configured to clean a faying surface of a nutplate;
a base comprising one or more first grooves, the base configured to:
attach to a pressure applicator; and
hold the abrasion pad within at least one of the base and the pressure applicator during cleaning of the nutplate, wherein cleaning the nutplate comprises abrading the faying surface with the abrasion pad; and

the pressure applicator, the pressure applicator comprising:
a housing comprising one or more externally located first protrusions and one or more internally located second grooves; and
a nutplate holder comprising one or more externally located second protrusions, wherein the one or more second grooves and the one or more second protrusions are configured to permit the nutplate holder to slide at least partially within the housing and to apply pressure to the nutplate such that the faying surface contacts the abrasion pad during the cleaning of the nutplate;
wherein the one or more first grooves of the base and the one or more first protrusions of the pressure applicator are configured to permit the pressure applicator to at least partially slide into the base and at least partially rotate within the base, thereby securely locking the nutplate between the pressure applicator and the base.

Assignees

• Lockheed Corp

Inventors

• Coffey Kevin Aaron
• Coleman David Haynes
• Street Stuart C
• Twaddle Steven E

Classifications

• B24B23/02 Primary

  with rotating grinding tools; Accessories therefor · CPC title

• B08B1/36

  rotating about an axis orthogonal to the surface · CPC title

• B24B7/186

  with disc-type tools · CPC title

• B24B23/08

  Portable grinding machines designed for fastening on workpieces or other parts of particular section, e.g. for grinding commutators · CPC title

• B25B21/00

  Portable power-driven screw or nut setting or loosening tools; (details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00; {for mounting or dismounting wheels B60B29/006}); Attachments for drilling apparatus serving the same purpose (machines B23P19/06) · CPC title