Machine Tool Consumable Part Replacement Time Management
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Solution Overview
Problem
Laser processing machines cannot monitor the deterioration of consumable parts, such as ultrapure water supply components, when the machine is powered off, leading to bacterial growth and necessitating premature replacement.
Innovation Solution
A consumable part replacement time managing device that tracks the usage and downtime of consumable parts, including ultrapure water supply components, by utilizing a control device with ON and OFF date and time storage units, threshold value storage, and a display unit to notify operators of replacement needs based on predefined thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the machine tool is powered off for a certain period, then energy consumption is reduced and the machine can be maintained in standby state, but consumable parts deteriorate due to bacterial growth and propagation
Solution Approach 1:
The system performs preliminary monitoring of the power-off duration and compares it against predetermined thresholds. When the off-time exceeds the threshold, the system proactively notifies the user to replace consumable parts before bacterial deterioration occurs, enabling preventive maintenance without requiring continuous machine operation
Solution Approach 2:
The control device continuously monitors the power supply state and accumulates off-time data. This feedback mechanism compares actual off-time against predetermined thresholds and triggers notifications when thresholds are exceeded, creating a closed-loop system that adapts to actual machine usage patterns and predicts when consumable parts need replacement
2Productivity
If the machine tool operates continuously, then productivity is maintained, but consumable parts deteriorate faster due to accumulated usage time
Solution Approach 1:
The control device accumulates both ON-time and OFF-time data and uses feedback mechanisms to compare total usage time against predetermined thresholds. This enables the system to track consumable part deterioration based on actual cumulative usage while distinguishing between operational wear and storage-related deterioration
Solution Approach 2:
The system changes the monitoring parameter from simple continuous operation tracking to differentiated tracking of ON-time and OFF-time periods. By separating these parameters, the system can apply different deterioration models and thresholds for usage-related wear versus storage-related bacterial growth, enabling more precise replacement timing
3Reliability
If consumable parts are replaced frequently, then reliability is maintained, but loss of time for replacement operations increases
Solution Approach 1:
The system performs preliminary monitoring and accumulation of usage time data continuously during machine operation. By the time the predetermined threshold is reached and replacement is notified, the system has already prepared accurate replacement timing information, allowing users to plan replacements in advance and avoid emergency replacements
Solution Approach 2:
The control device automatically monitors usage patterns, calculates accumulated ON-time, compares it with predetermined thresholds, and generates replacement notifications without requiring manual tracking or intervention. This self-service monitoring reduces the time users need to spend on manual part tracking and enables more efficient replacement scheduling
Data Source
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AI summary
In order to monitor replacement time for a consumable part of a machine tool, the present invention defines a time period after the power of the machine tool is turned off until the next turn-on thereof as a pause time for the consumable part, and provides a notification that the replacement time for the consumable part has come when the pause time is not less than a predetermined threshold.