Machined Surface Mapping for Control Axis Factor Estimation
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Solution Overview
Problem
Operators face difficulty in estimating the position on the machined surface of a workpiece where a factor affecting control of a control axis occurs, especially when the movement path of the tool does not align with the machined surface.
Innovation Solution
A machined surface estimation device that acquires tool position data, tool shape data, workpiece shape data, and factor data, associates this information, generates a machining model, and displays factor information on the model to indicate the affected position on the machined surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If factor information is displayed on the tool movement path, then the operator can identify where control factors occur, but the operator cannot easily estimate the corresponding position on the machined surface
Solution Approach 1:
The patent transforms the display from one dimension (tool movement path in 3D space) to another dimension (machined surface position mapping). By projecting tool position data onto the workpiece model coordinate system, the system creates a new dimensional representation where factor information is displayed at the actual machined surface location rather than tool tip position, enabling operators to directly correlate factors with surface positions
Solution Approach 2:
The patent introduces a coordinate transformation system as an intermediary between tool position data and workpiece position data. This intermediary performs mathematical transformation to map tool coordinates to workpiece coordinates, allowing factor information to be accurately transferred and displayed at the corresponding machined surface location without direct physical connection between tool and workpiece coordinate systems
2Measurement precision
If the tool movement path is displayed separately from the workpiece, then the tool trajectory can be visualized, but the relationship between tool path and machined surface position becomes unclear
Solution Approach 1:
The patent merges the tool path visualization with the workpiece model by overlaying factor information at transformed coordinates. Instead of displaying tool path and workpiece separately, the system combines them into a unified view where control factor markers appear directly on the machined surface positions, preserving both tool trajectory information and spatial relationship information simultaneously
Solution Approach 2:
The patent creates a virtual copy of the tool position data transformed into workpiece coordinate system. This copied and transformed position information is then displayed on the workpiece model, allowing operators to see the relationship between tool movement and machined surface positions without interfering with the actual machining process
Data Source
AI summary
This machining surface estimation device comprises: an acquisition unit that acquires tool position data indicating the position of a tool, tool shape data indicating the shape of the tool, workpiece shape data indicating the shape of a workpiece, and factor data indicating factors affecting the control of a control axis; an association unit that associates the tool position data with the factor data; a simulation unit that generates a machining model on the basis of the tool position data, tool shape data, and workpiece shape data acquired by the acquisition unit; and a display unit that displays factor information, indicating the factor data, on the machining model generated by the simulation unit, on the basis of the tool position data and the factor data associated by the association unit.