Tool Trajectory Waveform Display for Discontinuous Range Analysis
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Solution Overview
Problem
Designating a temporally discontinuous range including measurement points on a machining surface of a workpiece for analyzing tool movement is difficult with conventional methods.
Innovation Solution
A waveform display device that includes a position information acquisition unit, shaft information setting unit, tool path display unit, analysis object setting unit, analysis object range generation unit, and measurement point selection unit, allowing users to simply designate analysis ranges by selecting positions on the tool path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement points are selected on a temporally discontinuous range of the machining surface, then the analysis accuracy of tool movement influence is improved, but the operation complexity for designating the range increases
Solution Approach 1:
The patent introduces a waveform display showing tool path information as an intermediary between the machining surface and the measurement points. By displaying measurement points overlaid on the waveform representation of the tool path, the system provides a visual mediator that simplifies the designation of temporally discontinuous ranges. The user can select analysis ranges by interacting with the waveform display rather than directly coordinating with the complex three-dimensional machining surface geometry, thus maintaining measurement precision while significantly improving ease of operation.
Solution Approach 2:
The patent creates a copy of the tool path information in waveform form, which replicates the temporal sequence of tool movements. This waveform copy serves as a simplified representation that preserves the essential timing and positional information needed for accurate measurement point selection, while eliminating the operational complexity of directly interacting with the discontinuous ranges on the actual machining surface.
2Quantity of substance
If the range including measurement points is designated on the machining surface, then the analysis coverage is improved, but the ease of designating the range deteriorates due to temporal discontinuity
Solution Approach 1:
The waveform display acts as an intermediary interface that represents the temporal sequence of tool path movements. By displaying measurement points and analysis ranges on this waveform representation rather than directly on the machining surface, the system maintains comprehensive analysis coverage while providing a continuous, intuitive visual interface for range designation. The waveform continuously represents the tool path progression, making it easy to select ranges even when corresponding machining surface locations are temporally discontinuous.
Solution Approach 2:
The patent transforms the spatial representation problem into a temporal representation by displaying tool path information as a waveform that progresses over time. This dimensional transformation allows users to designate analysis ranges along the temporal dimension of the waveform display, which corresponds to the sequence of tool movements, rather than attempting to select discontinuous spatial regions on the machining surface. This maintains full analysis coverage while dramatically simplifying the designation operation.
Data Source
AI summary
Provided is a waveform display device that can easily designate an analysis target range just by selecting a location to be analyzed with regard to a tool trajectory. This waveform display device comprises: a positional information acquisition unit that acquires, from a control device that controls a machine tool, motor positional information for a drive shaft of the machine tool during workpiece machining; a shaft information setting unit that sets shaft information indicating the shaft configuration of the drive shaft of the machine tool; a tool trajectory display unit that calculates the trajectory of a tool tip point during workpiece machining by a tool mounted on the machine tool on the basis of the motor positional information and the shaft information and displays the trajectory as a waveform; an analysis target setting unit that sets an analysis target position relating to the trajectory of the tool tip point; an analysis target range generation unit that generates and displays an analysis target range containing a solid body including the set analysis target position; and a measurement point sorting unit that sorts out and displays a measurement point included in the analysis target range generated by the analysis target range generation unit from within the trajectory of the tool tip point.