Detection Tool Slant Correction for Precise Machining Positioning

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Solution Overview

Problem

Conventional machining devices face inaccuracies in positioning components due to slanted clamping of detection tools, leading to deviations in coordinate values, which can result in improper positioning during the machining process.

Innovation Solution

A machining device and method that determine correction values for X, Y, and Z axes by using pre-set reference points and actual length measurements of the detection tool, allowing for precise positioning by calculating X, Y, and Z correction values based on the tool's design length and actual length, thereby correcting for slant errors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the detection tool is clamped by the clamp, then the positioning process can be performed, but the detection tool may be clamped in a slanted position causing coordinate value deviations

Engineering Contradiction:
Improvepositioning accuracyVSAvoidcoordinate value accuracy
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent applies preliminary action by performing a slant correction value calculation process before the main positioning process. The system calculates correction values for X, Y, and Z axes based on reference points and actual tool length measurements, then applies these corrections to compensate for slanted clamping. This preliminary correction ensures that even when the detection tool is clamped at an angle, the coordinate values used for positioning remain accurate.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If the detection tool is clamped in a slanted position, then the positioning process can still proceed, but the coordinate values of the measurement point will deviate

Engineering Contradiction:
Improvepositioning process efficiencyVSAvoidcomponent positioning precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent applies parameter changes by introducing correction values that modify the coordinate parameters (X, Y, Z) obtained from slanted clamping measurements. The system calculates slant correction values based on reference point measurements and actual tool length, then applies these corrections to transform the deviated coordinate values into accurate positioning data. This allows the system to maintain productivity by processing slanted clamping data while restoring manufacturing precision through parameter correction.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If correction values are calculated using slant correction, then positioning accuracy can be maintained, but the calculation process becomes more complex

Engineering Contradiction:
Improvecoordinate value accuracyVSAvoidcorrection value calculation complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the correction value calculation into distinct, manageable segments: X-axis correction calculation, Y-axis correction calculation, and Z-axis correction calculation. Each axis correction is computed independently using specific reference point measurements and tool length data. This segmented approach reduces calculation complexity by breaking down the overall correction process into separate, systematic steps that can be executed sequentially.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3566809B1Machining device and correction value determination method
Publication Date: 2023.03.22 DGSHAPE CORP
  • EP3566809B1 patent drawingFigure 1
  • EP3566809B1 patent drawingFigure 2
  • EP3566809B1 patent drawingFigure 3A~3B

AI summary

A controller of a machining device includes an X correction value determiner to determine an X correction value based on an X coordinate value obtained when a detection tool clamped by a clamp is brought into contact with a predetermined X reference point, a Y correction value determiner to determine a Y correction value based on a Y coordinate value obtained when the detection tool clamped by the clamp is brought into contact with a predetermined Y reference point, an actual length determiner to determine an actual length of the detection tool clamped by the clamp, and a Z correction value determiner to determine a Z correction value based on the X correction value, the Y correction value, the actual length of the detection tool, and the design length of the detection tool.