Crash Pad Panel Fastener Alignment for Compact Assembly

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Solution Overview

Problem

Existing automatic assembly devices for crash pad lower assembly panels face challenges in efficiently and accurately aligning and supplying fasteners, leading to prolonged assembly times and bulky device designs.

Innovation Solution

The proposed assembly system includes a work table with a jig to support the crash pad lower assembly panel, an orthogonal robot, and an assembly device with a rail system, supply unit, and alignment unit to automatically align and supply fasteners, enabling quick and accurate assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a traditional bolt supplier continuously rotates a cylinder to align bolts, then bolts can be supplied, but the device becomes bulky and assembly time increases

Engineering Contradiction:

Improveassembly speedVSAvoiddevice size

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The bolt supply function is divided into separate components: a storage container for holding bolts, a guide groove for alignment, and a supply mechanism. This segmentation allows each component to be simpler and smaller than a traditional continuous rotation cylinder, while collectively achieving the same function of supplying aligned bolts efficiently

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Bolts are pre-aligned in the guide groove before being supplied to the assembly position. The guide groove prepositions the bolts in the correct orientation, eliminating the need for complex real-time alignment mechanisms during the assembly process, thus reducing device size while maintaining productivity

Inventive Principle:

Principle #10Preliminary action

2Manufacturing precision

If automatic assembly devices are used to assemble fasteners, then assembly accuracy improves, but the device requires bulky supply mechanisms

Engineering Contradiction:

Improvefastener alignment accuracyVSAvoidsupply device volume

Core Design Contradiction:

Manufacturing precisionVSVolume of stationary object

Solution Approach 1:

A guide groove acts as an intermediary element between the bolt storage container and the assembly position. This simple geometric feature provides the necessary alignment function without requiring complex mechanical alignment devices, achieving high positioning accuracy with minimal volume

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide groove structure allows bolts to self-align through their own geometry as they are fed through the groove. The groove's dimensions and shape automatically position the bolts correctly without requiring active alignment mechanisms, reducing device complexity while maintaining precision

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20250153792A1Assembly system for crash pad lower assembly panel

Publication Date: 2025.05.15 DO LIM IND CO LTD

AI summary

Proposed is an assembly system for a crash pad lower assembly panel, the assembly system being capable of automatically aligning and supplying fasteners and assembling accessories to a crash pad lower assembly panel using the fasteners. An assembly system for a crash pad lower assembly panel according to an embodiment includes a work table, a jig provided on a first side of the upper surface of the work table and configured to support a front surface of the crash pad lower assembly panel, a pressing rod provided on the work table and configured to pressurize the crash pad lower assembly panel supported on the jig, an orthogonal robot provided on the work table and configured to be movable in the X-axis and Y-axis above the jig, and an assembly device coupled to the orthogonal robot.