Machine Tool Diagnostic Data Acquisition Timing Control
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Solution Overview
Problem
Current diagnostic methods for machine tools require frequent test running, leading to user burden and productivity decline, as they necessitate periodic instruction and temporary shutdowns, and data collected during normal operation is not suitable for diagnosis.
Innovation Solution
A diagnostic data acquisition system that includes a control unit, timing generation unit, and diagnostic data acquisition unit, which acquires data based on control data and feedback signals, generating acquisition timing to collect diagnostic data during machine tool operation, reducing the need for test running and ensuring data suitability for diagnosis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If test running is performed periodically to acquire diagnostic data, then diagnosis accuracy is improved, but user burden increases and productivity decreases
Solution Approach 1:
The system performs preliminary actions by continuously acquiring and storing operational data during normal machine operation. The timing generation unit pre-identifies appropriate acquisition timings based on control data, so that diagnostic data is already available when needed, eliminating the need for periodic test running and maintaining high productivity while ensuring diagnosis accuracy.
Solution Approach 2:
The machine tool system serves itself by automatically acquiring diagnostic data during its own normal operation without requiring external intervention or separate test procedures. The control unit and timing generation unit work together to autonomously determine when to acquire data, reducing user burden while maintaining diagnostic capability.
2Reliability
If test running is instructed periodically to acquire diagnostic data, then diagnosis can be performed, but operation time is lost and productivity declines
Solution Approach 1:
The system maintains continuous useful action by acquiring diagnostic data during normal machine operation rather than requiring separate test running periods. The timing generation unit ensures data is acquired at appropriate moments during productive operation, eliminating idle time and maintaining both diagnosis capability and operational continuity.
3Productivity
If data is acquired during normal operation, then productivity is maintained, but data suitability for diagnosis deteriorates
Solution Approach 1:
The system applies local quality by acquiring data with specific characteristics suitable for diagnosis at particular moments during operation. The timing generation unit identifies local conditions in the operational data that are most suitable for diagnostic purposes, ensuring high data suitability while maintaining normal productivity without requiring separate test running.
Data Source
AI summary
Upon performing diagnosis of a machine tool, etc., data suited to diagnosis is acquired while also reducing the burden on the user. A diagnostic data acquisition system that acquires diagnostic data for diagnosing a machine tool includes: a control unit that controls driving of a mobile part of the machine tool based on control data; a timing generation unit that generates an acquisition timing for the diagnostic data based on the control data; and a diagnostic data acquisition unit that acquires data which varies accompanying driving of the mobile part according to control by the control unit, as the diagnostic data.