Robot-Mounted 3D Measurement Head With Compact Flange Layout
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Solution Overview
Problem
Three-dimensional measurement apparatuses mounted on robots face restrictions in drive range due to the large number of cables required for image data transmission, which limits the robot's ability to follow a target path.
Innovation Solution
A three-dimensional measurement apparatus is designed with a compact calculation unit and sensor configuration, where the shortest distance from the center of the flange to the outer peripheral edge of the calculation unit is less than or equal to the radius of the attachment portion or flange, minimizing the apparatus's protrusion and reducing cable constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a three-dimensional measurement apparatus is mounted on a robot with multiple cameras for capturing images from different viewpoints, then three-dimensional measurement capability is improved, but the number of cables increases and the robot's driving range is restricted
Solution Approach 1:
The patent combines multiple camera units and their associated processing functions into a single integrated measurement apparatus housing. This merging reduces the number of separate cable connections needed and minimizes the overall spatial footprint, allowing the robot to move more freely while maintaining three-dimensional measurement capabilities through integrated multi-camera stereo vision processing.
2Measurement precision
If multiple cameras are used to capture images for three-dimensional measurement, then measurement accuracy is improved, but the device complexity and cable arrangement become more complicated
Solution Approach 1:
The patent integrates multiple camera units and their signal processing pathways into a unified apparatus with centralized control. This consolidation reduces cable complexity by combining multiple separate connections into fewer integrated signal paths, while maintaining the multi-camera stereo vision capability needed for accurate three-dimensional measurement through integrated image processing.
Solution Approach 2:
The measurement apparatus is designed as a multi-functional integrated unit that performs multiple functions (capturing images from multiple viewpoints, processing stereo vision data, calculating three-dimensional coordinates) within a single housing. This universal design reduces the need for separate dedicated cables and connection points for each function, simplifying the overall cable arrangement while maintaining measurement accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration reduces the restriction on the robot's drive range, allowing for more flexible and unobstructed movement while maintaining accurate three-dimensional information processing.
Implementation Method 1
a sensor configured to receive light from an object
Data Source
AI summary
A three-dimensional measurement apparatus includes an attachment portion for attaching the three-dimensional measurement apparatus to a robot, a flange for attaching an end effector, a sensor configured to receive light from an object, and a calculation unit configured to determine three-dimensional information about the object by performing a calculation using data obtained by the sensor. A shortest distance among distances from a center of the flange to an outer peripheral edge of the calculation unit is less than or equal to a radius of the attachment portion or the flange, as viewed from the flange.