Tooling system and method for removing a damaged or defective bushing

Patent metadata

Field	Value
Publication number	US-9902052-B2
Application number	US-201514881321-A
Country	US
Kind code	B2
Filing date	Oct 13, 2015
Priority date	May 11, 2011
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

A method to remove a bushing from a bore includes an alignment tool that fits within an inner cavity of the bushing and a cutter tool aligned by the alignment tool. The method includes forming a groove on an inner surface of the bushing with the cutter tool and guiding the cutter tool with a guide associated with the alignment tool.

First claim

What is claimed is:

1. A method to remove a bushing from a bore, comprising:
forming a groove on an inner surface of the bushing with a cutter tool; and
guiding the cutter tool with an alignment tool fitted within an inner cavity of the bushing;
rotating the alignment tool;
selectively locating at least a first guide a first distance relative to a center of the alignment tool;
selectively locating at least a second guide a second distance relative to the center of the alignment tool;
wherein a diameter of the first guide and a diameter of the second guide are equal;
wherein the first distance is different than the second distance; and
wherein the groove causes the bushing to collapse inwardly and thereby allowing removal of the bushing from the bore.

2. The method of claim 1 , further comprising:
guiding the cutter tool with the first guide associated with the alignment tool.

3. The method of claim 1 , further comprising:
machining incremental groove depths with the plurality of guides associated with the alignment tool.

4. The method of claim 1 , further comprising:
guiding the cutter tool with the first guide and the second guide associated with the alignment tool; and
switching between from the first guide to the second guide to increase the groove depth;
wherein the first distance is smaller than the second distance.

5. The method of claim 1 , further comprising:
prying the bushing from the bore with a driver.

6. The method of claim 1 , further comprising:
rotating the cutter tool with a driver system.

Assignees

• Bell Helicopter Textron Inc
• Textron Innovations Inc

Inventors

• Cooper Tom

Classifications

• Y10T408/568

  Guide bushing · CPC title

• B23B47/281

  Jigs for drilling cylindrical parts · CPC title

• Y10T408/03

  Processes · CPC title

• Y10T408/5583

  Engaging sides of opening being enlarged by Tool · CPC title

• Y10T408/567

  Adjustable, tool-guiding jig · CPC title