Ergonomic CMM Mobile Controller for Reduced Operator Fatigue
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Solution Overview
Problem
Coordinate measuring machines (CMMs) have limitations in accurately measuring surface finish, requiring specialized tools and causing operator fatigue due to the bulkiness and weight of existing controllers.
Innovation Solution
A mobile controller with ergonomic design features such as a gripper and concave trenches on the backside, allowing operators to hold and operate the device with reduced fatigue, and a cradle for secure positioning, enabling easier access to controls and reducing physical strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional bulky controller is used for CMM operation, then control functionality is comprehensive, but operator fatigue increases and ease of operation deteriorates
Solution Approach 1:
The controller is divided into modular components including a main body housing, ergonomic apparatus with finger receiving portions, and separable functional elements. This segmentation allows the controller to maintain comprehensive control functionality while reducing overall bulk and improving ease of operation through modular design.
Solution Approach 2:
The ergonomic apparatus incorporates locally optimized features such as concave finger receiving portions, grip surfaces, and button arrangements specifically positioned for comfortable hand placement. These local quality improvements enhance operator comfort and reduce fatigue without requiring complete redesign of the entire controller system.
2Weight of moving object
If controller weight is reduced for reduced operator fatigue, then ease of operation improves, but structural stability and control precision may deteriorate
Solution Approach 1:
The controller housing and ergonomic apparatus utilize composite material construction that reduces weight while maintaining structural integrity. This allows the controller to be lighter for reduced operator fatigue while preserving the stability and precision required for reliable CMM operation.
Solution Approach 2:
The ergonomic apparatus incorporates curved and contoured surfaces including concave finger receiving portions that follow natural hand geometry. These curved designs reduce the amount of material required compared to flat rigid structures, decreasing weight while maintaining structural stability through optimized geometric distribution.
3Ease of operation
If controls are positioned for easy thumb access, then ease of operation improves, but device complexity increases due to spatial constraints
Solution Approach 1:
Controls are arranged in a three-dimensional layout on the top face of the housing, utilizing vertical and lateral spacing to accommodate multiple controls within compact dimensions. This dimensional arrangement allows easy thumb access to frequently used controls while maintaining comprehensive functionality without excessive planar complexity.
Solution Approach 2:
The controller incorporates adjustable or reconfigurable control elements that can be dynamically positioned or activated based on operational needs. This dynamic arrangement allows simple access to essential controls while providing complex functionality when required, reducing the apparent complexity of the control layout.
Data Source
AI summary
Embodiments described herein provide a mobile CMM jogbox that includes one or more ergonomic apparatuses configured and disposed to allow a CMM operator to hold and operate the jogbox, while avoiding or mitigating the fatigue of an operator using the jogbox.