Machine Tool Parameter Range Setting During Vibration Test Runs
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Solution Overview
Problem
Setting upper limit values for control parameters such as vibration acceleration or jerk in machine tool control devices is time-consuming and labor-intensive, as it requires consideration of machine tool strength and vibration load, and conventional test runs and parameter settings are not coordinated as a system.
Innovation Solution
A machine tool control device with a control parameter setting unit that includes a specifiable range setting unit, allowing for easy setting of control parameters based on a trigger received during operation, using a computer numerical controller to input and adjust vibration frequency, amplitude, and other parameters, coordinating test runs with parameter setting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the upper limit value of control parameters is set by the designer considering machine tool strength and vibration load, then the reliability of the machine tool is improved, but the ease of operation deteriorates due to the considerable time and effort required for setting
Solution Approach 1:
The system performs self-diagnosis during test runs, automatically detecting excessive shaking and determining appropriate upper limit values for control parameters without requiring manual designer intervention. The machine tool control device autonomously sets the specifiable range based on actual machine response to vibration inputs.
Solution Approach 2:
The system implements a feedback mechanism where the control parameter setting unit receives information about excessive shaking during test runs and automatically adjusts the upper limit values of control parameters accordingly. This closed-loop approach allows the system to learn from actual machine behavior and optimize parameters automatically.
2Manufacturing precision
If test runs are performed to determine appropriate upper limit values of control parameters, then the manufacturing precision is improved, but the loss of time increases due to the iterative process of provisional setting and test runs
Solution Approach 1:
The system performs preliminary test runs with automatically determined upper limit values before actual machining operations. The control parameter setting unit pre-configures appropriate parameter ranges based on machine characteristics, eliminating the need for repeated iterative adjustments during production setup.
Solution Approach 2:
The machine tool control device autonomously conducts test runs and determines optimal control parameter ranges without requiring operator intervention for each adjustment. The system self-calibrates by monitoring shaking during automated test operations and setting appropriate limits.
3Reliability
If the control parameters are set with strict upper limit values to prevent excessive shaking, then the reliability is improved, but the ease of operation deteriorates due to the complexity of coordinating test runs and parameter setting
Solution Approach 1:
The system merges the test run execution and parameter setting functions into a single integrated process. The control parameter setting unit combines the capabilities to conduct test runs, monitor shaking, and automatically determine upper limit values, eliminating the need for separate coordination of multiple operations.
Solution Approach 2:
The control system autonomously manages the entire process of determining and setting control parameters without requiring complex external coordination. The machine tool control device self-configures by automatically conducting tests and setting parameter limits based on observed machine behavior.
Data Source
AI summary
Provided is a machine tool control device with which it is possible to simply set control parameter ranges. This machine tool control device which controls a machine tool comprises: a control parameter-setting unit which sets control parameters; a shaft operation control unit which operates an operation shaft on the basis of the control parameters; and a trigger reception unit which receives a trigger during shaft operation by the shaft operation control unit. The control parameter-setting unit has a specifiable range-setting unit for setting specifiable ranges for the control parameters in response to the trigger reception unit having received the trigger, and sets the control parameters on the basis of the specifiable range.