Auxiliary-Axis Coordinate Measurement for Real-Time Multi-Axis Scanning

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Solution Overview

Problem

Existing portable articulated arm coordinate measuring machines (AACMMs) face limitations in providing improved measurement and scanning techniques, particularly in handling complex parts and requiring post-processing to synchronize data from multiple axes.

Innovation Solution

The integration of an auxiliary axis measurement system with motorized or automated cartridges and encoders, allowing real-time data collection and synchronization across multiple axes, eliminating the need for post-processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple separate measurement systems are used to measure complex parts, then measurement coverage is improved, but data synchronization complexity and post-processing time increase

Engineering Contradiction:
Improvemeasurement coverageVSAvoiddata synchronization complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple measurement systems into a single integrated coordinate measuring machine with multiple axes (including auxiliary axes 7 and 8). This merging eliminates the need for separate measurement systems and their associated data synchronization problems, while maintaining comprehensive measurement coverage through the integrated multi-axis platform

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated CMM performs multiple measurement functions simultaneously through its multi-axis configuration. The single device can measure complex parts from multiple angles and positions without requiring separate specialized measurement systems, achieving versatility while reducing overall system complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Device complexity

If manual operation of AACMM is used, then device simplicity is maintained, but measurement time and productivity are reduced

Engineering Contradiction:
Improvedevice simplicityVSAvoidmeasurement speed
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The system transitions from static manual operation to dynamic automated operation. The motorized cartridges and programmable control enable the CMM to automatically move along measurement paths, adapt to different measurement scenarios, and execute complex measurement sequences without manual intervention, significantly improving productivity while maintaining reasonable operational simplicity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The automated CMM performs measurements autonomously through programmable control. The system can independently execute measurement programs, process data, and generate results without continuous manual operation, enabling self-service measurement capabilities that dramatically increase productivity

Inventive Principle:
Principle #25Self-service

3Volume of moving object

If auxiliary axes are added to AACMM, then scanning volume and measurement capability are improved, but system complexity and calibration requirements increase

Engineering Contradiction:
Improvescanning volumeVSAvoidsystem complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The patent adds auxiliary axes (7th and 8th axes) to the traditional six-axis CMM configuration. This dimensional expansion enables measurement of larger and more complex parts by extending the scanning volume and accessibility, while the axes are integrated into the existing coordinate system to manage complexity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Measurement precision

If post-processing is used to synchronize data from multiple axes, then measurement accuracy can be maintained, but inspection time is increased

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidinspection time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs real-time data synchronization and coordinate transformation during the measurement process itself, rather than requiring post-processing. The control system continuously processes and coordinates data from all axes as measurements are taken, eliminating the need for time-consuming post-processing while maintaining measurement accuracy

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250231546A1Coordinate measurement system with auxiliary axis
Publication Date: 2025.07.17 FARO TECHNOLOGIES INC
  • US20250231546A1 patent drawing
  • US20250231546A1 patent drawing
  • US20250231546A1 patent drawing

AI summary

According to some aspects of the invention, auxiliary axis measurement systems for determining three-dimensional coordinates of an object are provided as shown and described herein. According to some aspects of the invention, methods for operating auxiliary axis measurement systems for determining three-dimensional coordinates of an object are provided as shown and described herein.