Machine Tool Movement Path Visualization for Interference Avoidance
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Solution Overview
Problem
In machine tools, returning a movable structure to a machine zero point requires numerous operation programs due to varying machining object positions, and current methods lack adequate safety checks for interference with other structures, posing a risk of accidents.
Innovation Solution
A machine tool configuration with a dedicated operation key, display unit, and movement path setting unit that allows operators to input and visualize movement paths, enabling safety checks and selection of interference-free paths, ensuring safe movement of movable structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a previously prepared operation program is used to return the movable structure to the machine zero point, then the positioning accuracy is improved, but the device complexity increases due to numerous operation programs required
Solution Approach 1:
The patent creates a virtual copy of the machine tool system including the movable structure and other structures in a virtual space. This virtual model allows operators to simulate and visualize movement paths without requiring numerous actual operation programs, thereby maintaining positioning accuracy while reducing program complexity
Solution Approach 2:
The patent introduces a movement path setting unit and display unit as intermediary components between the operator and the movable structure. These intermediaries enable visual confirmation of movement paths and interference detection, eliminating the need for complex pre-prepared operation programs while ensuring accurate positioning
2Productivity
If the movable structure is moved without visual observation and safety check, then the productivity is improved, but the harmful factors increase due to risk of interference accidents
Solution Approach 1:
The patent enables operators to perform preliminary visualization of movement paths through the display unit before actually moving the movable structure. This preliminary action allows safety confirmation and interference detection in advance, maintaining high operation speed while preventing accidents
Solution Approach 2:
The patent implements a feedback mechanism where the display unit provides real-time or pre-simulation information about the movement path to the operator. This feedback loop allows operators to confirm safety before execution, preventing interference accidents while maintaining productivity
3Reliability
If a dedicated operation key with movement path visualization is added, then the reliability is improved through safety checks, but the device complexity increases
Solution Approach 1:
The patent integrates multiple functions into the control unit, which handles both the dedicated operation key input and the movement path setting and display. This multi-functionality approach improves safety through visual confirmation while minimizing additional system complexity by reusing existing control infrastructure
Data Source
AI summary
A machine tool includes a movable structure 3, a numerical control unit 22, an external input unit 39 having a dedicated operation key for inputting an operation signal associated with at least a movement end point to which the movable structure 3 is moved, a display unit 39 displaying an image, a display control unit 25 controlling the display on the display unit 39, an input control unit 24 processing a signal input from the external input unit 39, and a movement path setting unit 32 receiving the operation signal input from the external input unit 39 and setting a movement path for moving the movable structure 3 corresponding to the operation signal to the movement end point according to a predetermined setting condition. The display control unit 25 displays an image relating to the movement path set by the movement path setting unit 32 on the display unit 39.