Numerical Controller Interference Display Attribute Change
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Solution Overview
Problem
Conventional numerical controllers lack the ability to predictively detect and display the moving axis and its direction during interference, making it difficult for operators to safely move the tool to a non-interfering position and identify the cause of interference.
Innovation Solution
A numerical controller with an attribute change processing part that alters the display attributes of axis information on the screen based on the operation state of the axis during predictive interference detection, allowing for easier identification of the axis and its direction, and an operation information collection and display part to show velocity and block number information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If predictive detection of interference is implemented, then safety is improved, but the ability to identify the cause of interference and determine axis movement direction deteriorates
Solution Approach 1:
The patent applies color changes to display attributes of axis information based on operation state. When predictive detection of interference occurs, the system changes the display color or appearance of coordinate values and axis information to indicate the moving axis and its direction, making it immediately visible to operators without requiring additional screens or complex identification procedures.
Solution Approach 2:
The patent segments the display information by separating axis information into distinct visual elements that can be individually highlighted. Each axis coordinate value and operation state is displayed as a separate identifiable element, allowing operators to quickly locate and understand the specific axis involved in the interference without processing entire screens of undifferentiated data.
2Device complexity
If only coordinate values are displayed after interference detection, then device complexity is reduced, but ease of operation deteriorates
Solution Approach 1:
The system enhances the existing coordinate value display by applying color changes or display attribute modifications based on operation state, rather than adding entirely new display screens or complex interfaces. This approach maintains device simplicity while dramatically improving ease of axis identification and movement direction determination.
3Extent of automation
If manual handling is required to move tool to safe place, then automation is reduced, but ease of operation improves
Solution Approach 1:
The patent introduces an intermediary information display system that mediates between the automated interference detection and the manual tool movement operation. By providing clear visual information about which axis is moving and in what direction, the system acts as an intermediary that enables operators to perform manual movements more efficiently and accurately, reducing the cognitive burden despite maintaining manual operation mode.
Data Source
AI summary
A numerical controller controls driving of an axis installed in a machine based on an instruction of a program, and when predictive detection of occurrence of interference between a movable part which moves by the driving of the axis and another object is made, the numerical controller decelerates and stops movement of the movable part. Further, the numerical controller changes a display attribute of information display relating to the axis based on an operation state of the axis which is being driven when predictive detection of occurrence of interference is made, and displays a coordinate value according to the display attribute that is changed by the attribute change processing part.