Wire Harness Layout Display Control for Error-Free Assembly
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Solution Overview
Problem
Existing wire harness production methods for train vehicles are inefficient and prone to incorrect operations such as incorrect wiring, necessitating improved operation efficiency and guidance for operators.
Innovation Solution
A wire harness producing device that utilizes a series of display devices showing a full-scale wire laying out drawing, accompanied by bar codes and guide indicators, along with a control system to manage electric wire feeding, cutting, and continuity checking, ensuring precise and efficient wire layout and attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wire harness assembly is performed by manual laying out along full scale drawings, then flexibility in operation is maintained, but operation efficiency is low and errors occur frequently
Solution Approach 1:
The patent uses projection devices to create visual copies of wire laying out drawings and position indicators on the workbench surface. This allows operators to see guide information directly at the work location without looking at separate drawings, improving both efficiency and accuracy by providing real-time visual guidance superimposed on the actual work area.
Solution Approach 2:
The patent introduces projection devices as an intermediary between the wire laying out drawings and the operator. The projection device translates digital drawing data into visual projections on the workbench, serving as a mediator that provides guidance information in a form that directly assists the operator's manual laying out process.
2Productivity
If visual guidance is provided through projection devices, then operation efficiency improves, but device complexity increases
Solution Approach 1:
The projection devices serve multiple functions: displaying wire laying out drawings, showing position indicators, providing guide information, and indicating work progress. By making the projection system multi-functional, the patent reduces the need for separate devices for each function, thereby limiting the increase in overall system complexity while achieving multiple productivity improvements.
3Ease of operation
If multiple display devices are arranged end to end to show full scale drawings, then visual guidance quality improves, but device complexity and space requirements increase
Solution Approach 1:
The patent combines multiple display functions into a unified projection system that displays wire laying out drawings, position indicators, and guide information simultaneously on the workbench surface. This merging of display functions into a single integrated system improves visual guidance quality while avoiding the complexity of managing multiple separate display devices.
Data Source
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AI summary
A wire harness producing device configured to produce a wire harness by displaying a wire laying-out drawing in a full size in a length direction on a plurality of display devices, and laying-out electric wires along the wire laying-out drawing. The device includes a displaying control section configured to look up operation recipe information configured as a database capable of identifying wire laying-out order numbers of the electric wires, and in turn display wire laying-out position indicators configured to indicate positions of the electric wires to be laid out, on the plurality of display devices, according to a wire laying-out order of the electric wires. The operation recipe information includes coordinate information for indicating displaying positions for the wire laying-out position indicators. The displaying control section is configured to display the wire laying-out position indicators, in the displaying positions indicated by the coordinate information on the plurality of display devices.