Mounting Head Operation Data Storage for Failure Analysis

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Solution Overview

Problem

Existing mounting heads lack detailed operational history storage, making it difficult to identify the cause of failures since the operation history up to the failure point cannot be referenced effectively.

Innovation Solution

A mounting head with a storage section and storage control section that acquires and stores operation data at different timings, allowing for detailed analysis of the operating status and facilitating failure cause identification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If operation time is stored in a memory tag, then maintenance management is facilitated, but detailed operation history cannot be referred to for failure analysis

Engineering Contradiction:
Improvemaintenance managementVSAvoidoperation history
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The storage memory is divided into multiple storage areas (first storage area, second storage area, third storage area) to segment the operation data into different categories: identification information, operation time, and detailed operation history. This segmentation allows each area to serve its specific purpose while maintaining overall system functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from storing only a single operation time value to storing detailed operation history data in an additional dimension. The operation history storage area captures multiple parameters (component name, position, operation status, time) to create a comprehensive record that enables failure analysis while maintaining the original operation time tracking functionality.

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

2Quantity of substance

If only operation time is stored, then storage space is minimized, but failure cause identification becomes difficult

Engineering Contradiction:
Improvestorage spaceVSAvoidfailure cause identification
Core Design Contradiction:
Quantity of substanceVSDifficulty of detecting and measuring

Solution Approach 1:

Different storage areas are assigned different levels of detail based on local requirements. The identification information area stores minimal data (head number), the operation time area stores temporal data, and the operation history area stores detailed operational parameters. This local quality differentiation optimizes storage space utilization while enabling comprehensive failure analysis when needed.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system performs preliminary storage of detailed operation history data continuously during operation, so that when a failure occurs, the complete operation history is already available for analysis. This preliminary action eliminates the need for retrospective data collection and enables immediate failure cause identification.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If detailed operation history is stored, then failure analysis capability is improved, but device complexity increases

Engineering Contradiction:
Improvefailure analysis capabilityVSAvoidstorage structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The storage memory is divided into multiple storage areas (first storage area, second storage area, third storage area) to segment the operation data into different categories: identification information, operation time, and detailed operation history. This segmentation allows each area to serve its specific purpose while maintaining overall system functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control unit acts as an intermediary that manages the complexity of data storage and retrieval. It automatically writes operation data to the appropriate storage areas and reads data for failure analysis, shielding the user from the underlying storage structure complexity while enabling comprehensive failure analysis capabilities.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3914059B1Mounting head, method for storing operation data for mounting head, and component mounting device
Publication Date: 2024.05.15 FUJI CORP
  • EP3914059B1 patent drawingFigure 1
  • EP3914059B1 patent drawingFigure 2
  • EP3914059B1 patent drawingFigure 3

AI summary

A mounting head is configured to be detachably attached to a mounting device main body. This mounting head includes a storage section having multiple storage areas, and a storage control section configured to acquire multiple operation data relating to an operation of the mounting head individually at different timings and store the multiple operation data individually in the multiple storage areas in such a state that the mounting head is attached to the mounting device main body.