Movable Bushing Localization Device for Composite Part Repair

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Solution Overview

Problem

There is a need for a device or method to accurately localize positions on parts, especially in maintenance and production, where existing attachment elements on a composite material main body need to be reused without weakening the main body, requiring precise localization of these elements on new reinforcements.

Innovation Solution

A device comprising a support with a movably mounted bushing and a removable localization member that travels over the part's surface to detect and mark positions, allowing for exact localization and retention of these marks, even if the part is removed, facilitating maintenance and repair operations by enabling accurate transfer of positions to new parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a localization device is used to precisely mark positions on parts, then manufacturing precision is improved, but device complexity increases

Engineering Contradiction:
Improvelocalization precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The device is divided into distinct functional segments: a support structure, a movable bushing, and a localization member. This segmentation allows each component to perform its specific function independently while contributing to the overall precision, resolving the contradiction by making the complex device manageable and effective through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bushing acts as an intermediary element between the support and the localization member. It guides the localization member's movement and maintains precise positioning, enabling accurate localization without requiring the entire device to be overly complex. The bushing mediates between structural support and precision function

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the bushing is movably mounted to adapt to different part geometries, then adaptability is improved, but measurement precision may deteriorate

Engineering Contradiction:
Improveadaptability to geometriesVSAvoidposition marking precision
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The bushing is designed with movable mounting that allows it to adjust its position dynamically according to different part geometries. This dynamic capability enables the device to adapt to various configurations while the blocking means ensure that once positioned, the bushing is fixed securely to maintain precision during the localization operation

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The device allows changes in the bushing's positional parameters to adapt to different part geometries. By adjusting the bushing's position along the support and then locking it in place, the system changes its geometric parameters to match different parts while maintaining measurement precision through the blocking mechanism

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9764392B2Device and method for localizing a position on a part
Publication Date: 2017.09.19 SAFRAN AIRCRAFT ENGINES SAS
  • US9764392B2 patent drawing
  • US9764392B2 patent drawing
  • US9764392B2 patent drawing

AI summary

A device for localizing a position on a part includes a support to receive the part, a bushing movably mounted with respect to the support, a removable localization member to be inserted into the bushing, and a blocking device to fix the bushing with respect to the support and to maintain it in position.