Robotic Roller Adhesive Application for Complex Aircraft Components

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Solution Overview

Problem

Manual application of adhesives for smaller, more complex aircraft components is labor-intensive and lacks uniformity and consistency.

Innovation Solution

A robotic arm equipped with a roller is used to apply adhesive material by submerging in a pool, distributing it on a thinning sheet, and then applying it to the component, controlled by programmable circuitry and machine-readable instructions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual application of adhesives is used for smaller, more complex aircraft components, then flexibility and adaptability to complex geometries are maintained, but labor intensity increases and uniformity/consistency deteriorates

Engineering Contradiction:

Improveuniformity and consistency of adhesive applicationVSAvoidlabor intensity

Core Design Contradiction:

Manufacturing precisionVSEase of operation

Solution Approach 1:

The roller automatically picks up adhesive from the pool and distributes it through its own rotation and contact with the thinning sheet, eliminating the need for manual manipulation by operators. The system serves itself by using the roller's mechanical properties to control adhesive transfer and distribution.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Manual mechanical application by operators is replaced with an automated robotic arm that precisely controls the roller's movements. The robotic system substitutes human dexterity with programmable mechanical control, achieving consistent results without labor-intensive manual operations.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If automated robotic application is used, then labor intensity is reduced and consistency is improved, but device complexity increases

Engineering Contradiction:

Improveefficiency of adhesive applicationVSAvoidcomplexity of application system

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The roller serves multiple functions: it picks up adhesive from the pool, distributes it on its surface through rotation, transfers it to the thinning sheet, and applies it to the component. This multi-functionality reduces the need for separate devices for each operation, simplifying the overall system despite automation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The thinning sheet acts as an intermediary between the adhesive pool and the component. It receives adhesive from the roller, allows excess to drain back, and presents a controlled amount to the component surface. This intermediary simplifies the application process by decoupling adhesive pickup from application.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Quantity of substance

If roller is at least partially submerged in application material, then adequate material pickup is achieved, but material waste increases

Engineering Contradiction:

Improveamount of adhesive picked up by rollerVSAvoidadhesive material waste

Core Design Contradiction:

Quantity of substanceVSLoss of substance

Solution Approach 1:

The roller is partially submerged in the adhesive pool rather than fully immersed, picking up more than the minimum required amount. The excess adhesive is then removed by the thinning sheet during the distribution phase, ensuring complete coverage while minimizing waste through controlled excess application.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

Excess adhesive that drains back onto the thinning sheet can be recovered and returned to the adhesive pool for reuse. This recycling approach minimizes material waste by capturing and reutilizing adhesive that would otherwise be lost during the application process.

Inventive Principle:

Principle #34Discarding and recovering

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This method provides uniform and consistent adhesive application, improving ergonomics and reducing labor intensity in manufacturing processes.

Implementation Method 1

maneuver the roller to contact the thinning sheet to distribute the application material to surround the roller

Methodology Applied

Scientific EffectRolling: Roller

Data Source

PatentUS12544909B2Methods and apparatus for controlled material application

Publication Date: 2026.02.10 THE BOEING CO

AI summary

Systems, apparatus, articles of manufacture, and methods are disclosed for controlled material application. An example apparatus includes a pool to carry the application material, a thinning sheet, a roller mounted on an electronically controlled robot arm, machine readable instructions, and controller circuitry to at least one of execute or instantiate the machine readable instructions to direct the electronically controlled robot arm to maneuver the roller to contact the application material in the pool, at least partially submerge the roller in the application material, maneuver the roller to contact the thinning sheet to distribute the application material to surround the roller, and apply the application material to the component by moving the roller across at least a portion of the component.