Aircraft Component Tool Layout for Reduced Working Height

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Solution Overview

Problem

The existing processing systems for aircraft structural components require large working heights and dimensions due to the need for coaxial alignment of tool axes, limiting the compactness and accessibility of the machining system.

Innovation Solution

The lower tool carrier axis is repositioned to be offset from its vertical alignment, allowing the tool axes to run non-coaxially with the lower tool carrier axis in certain machining positions, creating free space below the lower tool for the clamping frame and structural component, thereby reducing the working height and overall system dimensions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the tool axes are aligned coaxially with the lower tool carrier axis, then the machining precision and tool alignment are improved, but the working height and system dimensions increase

Engineering Contradiction:
Improvetool alignmentVSAvoidworking height
Core Design Contradiction:
Manufacturing precisionVSLength of stationary object

Solution Approach 1:

The patent applies asymmetry by offsetting the lower tool carrier axis from the tool axis. Instead of maintaining symmetric coaxial alignment, the lower tool carrier axis is positioned at a distance from the tool axis, creating an asymmetric configuration. This allows the clamping frame to be positioned in the created space, reducing the working height while maintaining proper tool alignment through the offset mechanism.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent introduces a spatial dimension change by offsetting the lower tool carrier axis horizontally from the tool axis. This creates a new spatial arrangement where the clamping frame can be positioned in the previously occupied vertical space, effectively reducing the working height while maintaining machining capability through the offset configuration.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Length of stationary object

If the lower tool carrier axis is offset from the tool axis, then the working height is reduced, but the tool alignment complexity increases

Engineering Contradiction:
Improveworking heightVSAvoidalignment mechanism
Core Design Contradiction:
Length of stationary objectVSDevice complexity

Solution Approach 1:

The patent introduces an intermediary offset mechanism that mediates between the lower tool carrier axis and the tool axis. This offset mechanism serves as an intermediary element that maintains proper tool alignment despite the horizontal displacement, simplifying the overall alignment process while achieving reduced working height through the intermediate offset structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If the clamping frame is positioned vertically, then the machining stability is improved, but the system requires larger vertical dimensions

Engineering Contradiction:
Improvemachining stabilityVSAvoidsystem height
Core Design Contradiction:
Stability of the object's compositionVSLength of stationary object

Solution Approach 1:

The patent applies asymmetry by creating an offset configuration between the lower tool carrier axis and the tool axis. This asymmetric arrangement allows the clamping frame to be positioned in the space created by the offset, maintaining machining stability through proper frame positioning while reducing the overall system height by utilizing the horizontal offset space instead of requiring additional vertical clearance.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentEP3658311B1Processing system for aircraft structural components
Publication Date: 2023.06.21 BROETJE AUTOMATION
  • EP3658311B1 patent drawingFigure 1a~1b
  • EP3658311B1 patent drawingFigure 2a~2b
  • EP3658311B1 patent drawingFigure 3a~3f

AI summary

The invention relates to a processing system for aircraft structural components (2), having a processing station (3) comprising a clamping frame (4) for receiving each particular aircraft structural component (2) to be processed, wherein the clamping frame (4) extends along a station longitudinal axis (6) extending in a longitudinal direction (X), and a processing unit (5) for processing the aircraft structural component (2), said unit (5) having an upper tool unit (11) with an upper tool (13) oriented along a first tool axis (12a) and a lower tool unit (14) with a lower tool (15) oriented along a second tool axis (12b), wherein the first tool axis (12a) and the second tool axis (12b) are oriented or orientable parallel to a vertical direction (Z) that is at an angle, in particular orthogonal, to the longitudinal direction (X), wherein, in at least one processing position of the upper tool (13) and in at least one processing position of the lower tool (15), the first tool axis (12a) and the second tool axis (12b) are oriented coaxially with one another and wherein the lower tool (15) is mounted on a lower tool carrier (17). It is proposed that, in at least one processing position of the upper tool (13) and/or in at least one processing position of the lower tool (15), the particular tool axis (12a, 12b) does not extend coaxially with the lower tool carrier axis (18).