AR Glasses for Machine Tool Path Visualization
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Solution Overview
Problem
In machine tools, it is challenging to intuitively display the relative position of a tool's tip in a workpiece coordinate system, especially when both the tool and the table on which the workpiece is mounted move, as existing systems do not effectively show the movement direction and path of both components simultaneously.
Innovation Solution
An augmented reality glasses device with transmissive display sections, a block acquisition section, a path determination section, and a display control section that acquires and stereographically displays the path and movement direction of the tool in the workpiece coordinate system, allowing workers to visualize the tool's movement as a three-dimensional image, including the movement of the table and tool in a superimposed manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the movement path of the tool is displayed on a two-dimensional screen, then the machining status can be checked, but the movement direction and relative position in three-dimensional space cannot be intuitively understood
Solution Approach 1:
The patent transforms two-dimensional screen display into three-dimensional virtual reality display. The numerical control apparatus generates three-dimensional movement path data and transmits it to a VR display device, allowing operators to visually grasp the tool's movement trajectory and direction in three-dimensional space, thereby recovering the lost spatial information.
Solution Approach 2:
The patent introduces a VR display device as an intermediary between the numerical control apparatus and the operator. This intermediary converts numerical control data into immersive three-dimensional visual representations, enabling intuitive understanding of tool movement paths without directly complicating the core control system.
2Measurement precision
If multiple program blocks are acquired to determine the tool path, then the relative position accuracy improves, but the memory usage increases
Solution Approach 1:
The patent extracts only the necessary program blocks required for accurate tool path determination rather than storing all program blocks. By identifying and processing only the relevant blocks that define the tool's movement trajectory, the system achieves precise position determination while minimizing memory consumption.
Solution Approach 2:
The patent applies partial action by acquiring a limited number of program blocks sufficient for determining the tool path, rather than processing the entire program. This partial processing approach provides adequate precision for operational understanding while avoiding the memory overhead of complete program storage.
Data Source
AI summary
An augmented reality glasses device including a pair of transmissive display sections and capable of displaying a path of a tool in a machine tool on the display sections includes a block acquisition section that acquires a program block causing the tool to move and operate, a path determination section that determines a path and a movement direction of the tool in a workpiece coordinate system in accordance with a plurality of the acquired successive time-series program blocks, and a display control section that causes the display sections to stereographically display the determined path and movement direction of the tool.