Component Mounting Machine Fault Localization Using Multi-Inspection Results
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Solution Overview
Problem
Existing malfunction detection systems for component mounting machines fail to accurately identify the location of malfunctions, leading to excessive operator work time and load when investigating issues.
Innovation Solution
A malfunction determining device that includes a head with a pickup member, a moving device, and an inspection section for performing multiple inspections to determine the presence and location of malfunctions by combining results from mounting and calibration measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only mounting accuracy inspection is performed to detect malfunctions, then malfunction detection capability is provided, but malfunction location identification is impossible leading to excessive operator investigation time
Solution Approach 1:
The inspection system is segmented into multiple independent inspection types (mounting accuracy inspection, head positioning inspection, head calibration inspection) that can be selectively executed. Each inspection targets specific components or functions, allowing the system to isolate and identify malfunction locations by combining results from different inspection segments rather than requiring comprehensive manual investigation.
2Loss of information
If multiple inspections are performed to identify malfunction location, then malfunction location identification capability is improved, but inspection complexity and workload increase
Solution Approach 1:
The inspection system is designed with multi-functionality to handle various inspection types through a unified framework. The determining section can universally process results from different inspection types (mounting accuracy, head positioning, head calibration) using the same malfunction determination logic, reducing the need for separate complex analysis systems for each inspection type.
Solution Approach 2:
The system implements feedback mechanisms where inspection results are fed back to the determining section which then outputs malfunction location information. This feedback loop allows the system to automatically adjust and refine malfunction identification based on combined inspection data, reducing complexity by using a centralized determination process rather than multiple independent analysis systems.
3Measurement precision
If comprehensive inspection covering both mounting operation and calibration measurement is performed, then accurate malfunction location determination is achieved, but inspection time and processing load increase
Solution Approach 1:
The system performs preliminary actions by executing multiple inspection types and storing their results before final malfunction determination is needed. Inspection results from mounting accuracy, head positioning, and head calibration inspections are pre-collected and stored, allowing the determining section to quickly retrieve and analyze combined data when malfunction determination is required, rather than performing all inspections at once.
Data Source
AI summary
A malfunction determining device includes a head including a pickup member for picking up a component, a moving device configured to move the head, an inspection section, a determining section, and a notification section. The inspection section executes multiple inspections including a first inspection for performing a mounting operation under control of the head and the moving device to inspect whether the mounting operation is good or bad, and a second inspection for performing a calibration measurement of the head to inspect whether the calibration measurement is good or bad. The determining section determines presence or absence of a malfunction and a malfunction location in the head and the moving device based on a combination of results of the multiple inspections.